52 results on '"Kaoru Okugawa"'
Search Results
2. Impact of obesity on robotic‐assisted surgery in patients with stage <scp>IA</scp> endometrial cancer and a low risk of recurrence: An institutional study
- Author
-
Kazuo Asanoma, Hideaki Yahata, Kaoru Okugawa, Tatsuhiro Ohgami, Masafumi Yasunaga, Keisuke Kodama, Ichiro Onoyama, Hironori Kenjo, Mototsugu Shimokawa, and Kiyoko Kato
- Subjects
Postoperative Complications ,Robotic Surgical Procedures ,Humans ,Obstetrics and Gynecology ,Female ,Laparoscopy ,Neoplasm Recurrence, Local ,Obesity, Morbid ,Retrospective Studies ,Endometrial Neoplasms - Abstract
Westernization of lifestyle has increased the numbers of patients with endometrial cancer and obesity. This study aimed to compare the clinical outcomes of robotic-assisted surgery according to whether patients are obese, morbidly obese, or nonobese.Sixty-three patients with endometrial cancer who underwent robotic-assisted surgery between March 2014 and June 2022 were categorized according to whether they had a body mass index (BMI)30 (group A, nonobese, n = 40), ≥30 and35 (group B, obese, n = 13), or ≥35 (group C, morbidly obese, n = 10). Operation time, blood loss, perioperative complications, and recurrence rate were investigated.Conversion to laparotomy was required in one case in group A and one in group C. There was no difference in total operation time, time for setting (including trocar installation and docking of the da Vinci robot), console time, or time for wound closure between the groups; however, there was a significant between-group difference in the total time for setting and wound closure. There was no significant difference in blood loss or complications between the groups. Three patients in group A and two in group B received adjuvant treatment; none have shown evidence of recurrent disease during a mean observation time of 21 months (range, 2-29). Two cases in group A and one in group B had recurrence during a mean observation time of 38 months (range, 19-46).Patients with endometrial cancer who are obese can be treated safely by robotic-assisted surgery with a low risk of complications and few relapses.
- Published
- 2022
- Full Text
- View/download PDF
3. Prognostic impact of adding bevacizumab to carboplatin and paclitaxel for recurrent, persistent, or metastatic cervical cancer
- Author
-
Masafumi, Yasunaga, Hideaki, Yahata, Kaoru, Okugawa, Mototsugu, Shimokawa, Yumiko, Maeda, Emiko, Hori, Keisuke, Kodama, Hiroshi, Yagi, Tatsuhiro, Ohgami, Ichiro, Onoyama, Kazuo, Asanoma, and Kiyoko, Kato
- Subjects
Bevacizumab ,Paclitaxel ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Uterine Cervical Neoplasms ,Obstetrics and Gynecology ,Female ,Prognosis ,Carboplatin ,Retrospective Studies - Abstract
Recent randomized phase III trial has shown significant benefit in overall survival (OS) for patients with advanced cervical cancer by adding bevacizumab to conventional chemotherapy. The aim of this study was to evaluate the prognostic impact for Japanese recurrent, persistent, or metastatic cervical cancer patients where bevacizumab was added to paclitaxel plus carboplatin.A retrospective analysis was performed on 90 patients with recurrent, persistent, or metastatic cervical cancer mainly treated by paclitaxel plus carboplatin between 2005 and 2019 at our hospital. Data for the following clinicopathological variables were analyzed: (1) bevacizumab use; (2) histology; (3) disease presentation; (4) performance status; (5) prior chemotherapy containing platinum agent; (6) pelvic disease; (7) prior pelvic radiotherapy; (8) location of target lesions. Survival analysis was performed using Kaplan-Meier curves, log-rank tests, Wilcoxon tests, and Cox proportional hazards models combined with propensity score matching.Adding bevacizumab to paclitaxel plus carboplatin showed significantly increased complete response to compared with that of non-users. In a Cox regression hazard model, bevacizumab use tended to show better OS though without statistically significance. After propensity score matching, adding bevacizumab to paclitaxel plus carboplatin showed a significant better OS by univariate analysis using Wilcoxon test, not by log-rank test.Adding bevacizumab to paclitaxel plus carboplatin showed a limited prognostic impact for recurrent, persistent or advanced cervical cancer patients in the real world. Further effective second-line treatments are needed to prolong OS of patients with recurrent, persistent or advanced cervical cancer.
- Published
- 2022
- Full Text
- View/download PDF
4. Supplementary Video S6 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
5. Supplementary Video S4 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
6. Supplementary Video S2 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
7. Supplementary Video S7 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
8. Supplementary Video S5 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
9. Supplementary Video S1 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
10. Supplementary Video S3 from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
movie file
- Published
- 2023
- Full Text
- View/download PDF
11. Data from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
Histopathologic analysis through biopsy has been one of the most useful methods for the assessment of malignant neoplasms. However, some aspects of the analysis such as invasiveness, evaluation range, and turnaround time from biopsy to report could be improved. Here, we report a novel method for visualizing human cervical tissue three-dimensionally, without biopsy, fixation, or staining, and with sufficient quality for histologic diagnosis. Near-infrared excitation and nonlinear optics were employed to visualize unstained human epithelial tissues of the cervix uteri by constructing images with third-harmonic generation (THG) and second-harmonic generation (SHG). THG images enabled evaluation of nuclear morphology in a quantitative manner with six parameters after image analysis using deep learning. It was also possible to quantitatively assess intraepithelial fibrotic changes based on SHG images and another deep learning analysis. Using each analytical procedure alone, normal and cancerous tissue were classified quantitatively with an AUC ≥0.92. Moreover, a combinatory analysis of THG and SHG images with a machine learning algorithm allowed accurate classification of three-dimensional image files of normal tissue, intraepithelial neoplasia, and invasive carcinoma with a weighted kappa coefficient of 0.86. Our method enables real-time noninvasive diagnosis of cervical lesions, thus constituting a potential tool to dramatically change early detection.Significance:This study proposes a novel method for diagnosing cancer using nonlinear optics, which enables visualization of histologic features of living tissues without the need for any biopsy or staining dye.
- Published
- 2023
- Full Text
- View/download PDF
12. Supplementary Data from Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Yasujiro Kiyota, Kiyoko Kato, Tadashi Kimura, Eiichi Morii, Shinya Matsuzaki, Mayu Shiomi, Kaoru Okugawa, Ichiro Onoyama, Junichi Kikuta, Hiroki Mizuno, Takao Sudo, Tetsuo Hasegawa, Seiji Taniguchi, Masafumi Mimura, Akio Iwasa, Ryo Tamoto, and Takahiro Matsui
- Abstract
Supplementary Figures and Legends
- Published
- 2023
- Full Text
- View/download PDF
13. An update of oncologic and obstetric outcomes after abdominal trachelectomy using the FIGO 2018 staging system for cervical cancer: a single-institution retrospective analysis
- Author
-
Kaoru Okugawa, Hideaki Yahata, Tatsuhiro Ohgami, Masafumi Yasunaga, Kazuo Asanoma, Hiroaki Kobayashi, and Kiyoko Kato
- Subjects
Treatment Outcome ,Oncology ,Trachelectomy ,Uterine Cervical Neoplasms ,Obstetrics and Gynecology ,FIGO 2018 Staging System ,General Medicine - Abstract
Objective: / To apply the International Federation of Gynecology and Obstetrics (FIGO) 2018 staging system to all patients who underwent trachelectomy in our previous study and to update the oncologic and obstetric results. / Methods: / We retrospectively reviewed the medical records of patients in whom abdominal trachelectomy was attempted between June 2005 and September 2021. The FIGO 2018 staging system for cervical cancer was applied to all patients. / Results: / Abdominal trachelectomy was attempted for 265 patients. Trachelectomy was converted to hysterectomy in 35 patients, and trachelectomy was completed successfully in 230 (conversion rate: 13%). Applying the FIGO 2018 staging system, 40% of the patients who underwent radical trachelectomy had stage IA tumors. Among 71 patients who had tumors measuring ≥2 cm, 8 patients were classified as stage IA1 and 14 as stage IA2. Overall recurrence and mortality rates were 2.2% and 1.3%, respectively. One hundred twelve patients attempted to conceive after trachelectomy; 69 pregnancies were achieved in 46 patients (pregnancy rate: 41%). Twenty-three pregnancies ended in first-trimester miscarriage, and 41 infants were delivered between gestational weeks 23 and 37; 16 were deliveries at term (39%) and 25 were premature deliveries (61%). / Conclusion: / This study suggested that patients judged to be ineligible for trachelectomy and patients receiving overtreatment will continue to appear using the current standard eligibility criteria. With the revisions to the FIGO 2018 staging system, the preoperative eligibility criteria for trachelectomy, which were based on the FIGO 2009 staging system and tumor size, should be changed.
- Published
- 2023
- Full Text
- View/download PDF
14. A Case of Malignant Phyllodes Tumor of the Breast Metastasizing to the Ovary
- Author
-
Hiroshi Tomonobe, Yuichi Yamada, Yukiko Tada, Masafumi Yasunaga, Yoshinao Oda, Kiyoko Kato, Hideaki Yahata, Emiko Hori, and Kaoru Okugawa
- Subjects
Ovarian Neoplasms ,Pathology ,medicine.medical_specialty ,Lung ,business.industry ,Breast Neoplasms ,Ovary ,Malignant phyllodes tumor ,medicine.disease ,Pathology and Forensic Medicine ,Metastasis ,medicine.anatomical_structure ,Phyllodes Tumor ,medicine ,Humans ,Female ,Surgery ,Breast ,Anatomy ,Differential diagnosis ,Ovarian cancer ,business - Abstract
Phyllodes tumors of the breast are uncommon, and 6.2% of phyllodes tumors behave in a malignant fashion. The metastatic spread of malignant phyllodes tumor is mainly hematogenous to lung and bone, and malignant phyllodes tumor metastasizing to the ovary is rare, with only 2 cases reported. We report the third case of metastatic malignant phyllodes tumor to the ovary with a focus on the differential diagnosis of ovarian cancer.
- Published
- 2021
- Full Text
- View/download PDF
15. Prognostic impact of the subclassification of Müllerian cancer stage IV in the FIGO 2014 staging system with a focus of extra-abdominal lymph node metastases
- Author
-
Emiko Hori, Ichiro Onoyama, Kiyoko Kato, Kaoru Okugawa, Keisuke Kodama, Hiroshi Yagi, Kazuo Asanoma, Hideaki Yahata, Masafumi Yasunaga, and Tatsuhiro Ohgami
- Subjects
0301 basic medicine ,medicine.medical_specialty ,Bevacizumab ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Surgical oncology ,medicine ,Humans ,Stage (cooking) ,Lymph node ,Survival analysis ,Neoplasm Staging ,Retrospective Studies ,Proportional hazards model ,business.industry ,Cancer ,Hematology ,General Medicine ,Prognosis ,medicine.disease ,Survival Analysis ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Lymphatic Metastasis ,030220 oncology & carcinogenesis ,Surgery ,Radiology ,business ,medicine.drug - Abstract
The International Federation of Gynecology and Obstetrics (FIGO) staging system for Mullerian cancer was changed in 2014. Our objective was to evaluate the prognostic impact of stage IV subclassification in this new staging system, especially focusing on extra-abdominal lymph node metastasis. Eighty-two patients with stage IV Mullerian cancer treated between 2005 and 2016 at our hospital were retrospectively analyzed. Data for the following clinicopathological variables were analyzed: (1) FIGO stage; (2) tumor stage; (3) lymph node status; (4) histologic type; (5) neoadjuvant chemotherapy; (6) optimal surgery; and (7) bevacizumab use. Survival analysis was performed using Kaplan–Meier curves, log-rank tests, and Cox proportional hazards models. In accordance with the new classification, 28 and 54 patients were classified as FIGO IVA and IVB, respectively. In the Cox proportional hazards model, early-stage tumors (T1b–3b) and optimal surgery were statistically significant favorable prognostic factors. However, the new FIGO system did not discriminate prognostically between stage IVA and IVB. Median overall survival of stage IVB patients diagnosed with extra-abdominal lymph node metastasis only was better than that of stage IVA and stage IVB patients diagnosed with solid organ metastasis. In this analysis of the revised FIGO system of patients reclassified as FIGO stage IVA or IVB, no new prognostic information was obtained. There is a possibility that stage IVB patients diagnosed with extra-abdominal lymph node metastasis only can be classified as an earlier stage. Further modification of the FIGO staging system may be needed to improve the prediction of patient prognosis.
- Published
- 2021
- Full Text
- View/download PDF
16. Hypersensitivity reaction to <scp>pegylated</scp> liposomal doxorubicin administration for Mullerian carcinoma in Japanese women
- Author
-
Ichiro Onoyama, Kiyoko Kato, Masafumi Yasunaga, Keisuke Kodama, Hideaki Yahata, Tatsuhiro Ohgami, Hiroshi Yagi, Shinichiro Yamaguchi, Kaoru Okugawa, and Kazuo Asanoma
- Subjects
medicine.medical_specialty ,PEGylated liposomal doxorubicin ,Gastroenterology ,Polyethylene Glycols ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Dexamethasone Sodium Phosphate ,Japan ,Internal medicine ,hypersensitive reaction ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Carcinoma ,Humans ,Adverse effect ,Retrospective Studies ,Ovarian Neoplasms ,030219 obstetrics & reproductive medicine ,business.industry ,Incidence (epidemiology) ,Granisetron Hydrochloride ,Obstetrics and Gynecology ,medicine.disease ,Carboplatin ,Hypersensitivity reaction ,enzymes and coenzymes (carbohydrates) ,chemistry ,Doxorubicin ,030220 oncology & carcinogenesis ,Female ,lipids (amino acids, peptides, and proteins) ,Premedication ,business - Abstract
Aim / PEGylated liposomal doxorubicin (PLD) is a therapeutic agent for gynecological malignancy. Hypersensitivity reaction (HSR) is a major adverse effect that usually disappears after halting administration of PLD. Premedication is usually not necessary before administration of PLD to prevent HSR. Here, we evaluated the frequency of HSR during administration of PLD following premedication in Japanese women. / Methods / We performed PLD administration in 78 patients (386 cycles) between 2013 and 2018. Granisetron hydrochloride and dexamethasone sodium phosphate were administered 30 min before PLD administration. Then, PLD (40 or 30 mg/m2 combined usage with carboplatin) was administered. We retrospectively reviewed the medical records of 78 patients and examined the frequency of HSR. / Results / Seven of 78 (9%) patients showed HSR by PLD administration following premedication. One patient showed cardiopulmonary arrest in 13 min after PLD administration (grade 4). The other six patients showed grade 2 HSR. All patients developed HSR in the first course. The incidence of HSR was significantly higher in patients with allergic history than in patients without allergic history (p = 0.0151). / Conclusions / Clinicians should be aware of the potential for HSR in patients administered PLD, particularly those with allergic history and those receiving the first cycle of PLD, even following premedication.
- Published
- 2021
- Full Text
- View/download PDF
17. Tumor-derived ARHGAP35 mutations enhance the Gα
- Author
-
Hiroshi, Yagi, Ichiro, Onoyama, Kazuo, Asanoma, Minoru, Kawakami, Shoji, Maenohara, Keisuke, Kodama, Yumiko, Matsumura, Norio, Hamada, Emiko, Hori, Kazuhisa, Hachisuga, Masafumi, Yasunaga, Tatsuhiro, Ohgami, Kaoru, Okugawa, Hideaki, Yahata, and Kiyoko, Kato
- Abstract
Dysregulated G protein-coupled receptor signaling is involved in the formation and progression of human cancers. The heterotrimeric G protein Gα
- Published
- 2022
18. Fertility-sparing trachelectomy for early-stage cervical cancer: A proposal of an ideal candidate
- Author
-
Tomoaki Ikeda, Kyoko Tanaka, Hiroaki Kobayashi, Hideki Tokunaga, Koji Matsuo, Mikio Mikami, Kenichiro Morishige, Nobuo Yaegashi, Kiyoshi Yoshino, Hiroko Machida, Takashi Iwata, Takayuki Enomoto, Tsuyoshi Saito, Makio Shozu, and Kaoru Okugawa
- Subjects
Adult ,0301 basic medicine ,medicine.medical_specialty ,Trachelectomy ,medicine.medical_treatment ,Uterine Cervical Neoplasms ,Disease-Free Survival ,Article ,Fertility sparing surgery ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Obstetrics and gynaecology ,medicine ,Humans ,Neoplasm Invasiveness ,Stage (cooking) ,Neoplasm Staging ,Retrospective Studies ,Cervical cancer ,Hysterectomy ,Ideal (set theory) ,Obstetrics ,business.industry ,Fertility Preservation ,Obstetrics and Gynecology ,Retrospective cohort study ,medicine.disease ,030104 developmental biology ,Oncology ,Lymphatic Metastasis ,030220 oncology & carcinogenesis ,Female ,business - Abstract
OBJECTIVE. To propose an ideal patient candidate with early-stage cervical cancer for undergoing fertility-sparing trachelectomy. METHODS. This nationwide, multicenter, retrospective study was conducted by the Japan Society of Obstetrics and Gynecology involving women aged
- Published
- 2020
- Full Text
- View/download PDF
19. Evaluation of the efficacy of vaginal progesterone in preventing preterm birth after abdominal trachelectomy: a prospective study with a historical cohort
- Author
-
Yuka Sato, Nobuhiro Hidaka, Atsuhiko Sakai, Saki Kido, Yasuyuki Fujita, Kaoru Okugawa, Hideaki Yahata, and Kiyoko Kato
- Abstract
Objective To determine whether vaginal progesterone (VP) reduces the rate of preterm birth in pregnant women after abdominal trachelectomy (AT) for early-stage cervical cancer Design Prospective cohort study with a historical cohort Setting University hospital Population Twelve pregnancies in ten women were included in the VP group between October 2016 and September 2020. By contrast, 19 pregnancies in 17 women were included in the historical control group between January 2007 and September 2016. Methods For the interventional study participants, the administration of vaginal progesterone was started between 16+0 and 19+6 weeks of gestation and discontinued at 34 weeks of gestation or at the time of delivery, rupture of membranes, or massive uterine bleeding, whichever occurred first. We investigated obstetric and neonatal outcomes among the study participants and compared them with outcomes of the historical control group participants. Main Outcome Measures The gestational age at delivery and incidence of preterm birth before 37 weeks and 34 weeks of gestation Results The incidence of preterm birth at
- Published
- 2022
- Full Text
- View/download PDF
20. Cyclin-dependent kinase 8 is an independent prognosticator in uterine leiomyosarcoma
- Author
-
Nobuko Yasutake, Takeshi Iwasaki, Hidetaka Yamamoto, Kenzo Sonoda, Keisuke Kodama, Kaoru Okugawa, Kazuo Asanoma, Hideaki Yahata, Kiyoko Kato, and Yoshinao Oda
- Subjects
Leiomyosarcoma ,Mediator Complex ,Uterine Neoplasms ,Humans ,Female ,Cell Biology ,Exons ,Cyclin-Dependent Kinase 8 ,Pathology and Forensic Medicine ,Transcription Factors - Abstract
Cyclin-dependent kinase 8 (CDK8) is associated with the transcriptional mediator complex and regulates several transcription factors implicated in cancer. CDK8 expression is a poor prognostic marker in colon and breast cancer by immunohistochemistry. However, somatic mutations in exon 2 of the RNA polymerase II transcriptional mediator subunit MED12 occur in 7-30% of cases of uterine leiomyosarcoma (ULMS), suggesting that these alterations contribute to tumorigenesis. Public genomic mutation data of 80 patients with ULMS were used for MED12 and CDK8 mutation analysis. The expression of MED12, CDK8 and β-catenin was evaluated by immunohistochemistry in our cohort of 60 patients with ULMS, in addition with MED12 mutation status and survival stage. Univariate analysis was performed using the log-rank test, and Cox regression was used to identify independent prognostic factors. Multivariate Cox regression analysis revealed that advanced stage (p 0.0001) and high CDK8 expression (p = 0.0014) were independent predictors of poor prognosis. MED12 mutation status was not significantly associated with CDK8 expression (p = 0.6873) and DSS (p = 0.8075). In conclusion, our data suggest that CDK8 expression may identify a subset of ULMS patients with a poor prognosis.
- Published
- 2022
21. Evaluation of Clinical Significance of Lymphovascular Space Invasion in Stage IA Endometrial Cancer
- Author
-
Kaoru Okugawa, Hideaki Yahata, Kazuhisa Hachisuga, Hiroshi Tomonobe, Nobuko Yasutake, Keisuke Kodama, Hironori Kenjo, Hiroshi Yagi, Tatsuhiro Ohgami, Masafumi Yasunaga, Ichiro Onoyama, Kazuo Asanoma, Emiko Hori, Yoshihiro Ohishi, Yoshinao Oda, and Kiyoko Kato
- Subjects
Survival Rate ,Cancer Research ,Oncology ,Humans ,Female ,Neoplasm Invasiveness ,General Medicine ,Prognosis ,Carcinoma, Endometrioid ,Endometrial Neoplasms ,Neoplasm Staging ,Retrospective Studies - Abstract
Introduction: The prognostic significance of lymphovascular space invasion (LVSI) in stage IA endometrial cancer remains unclear. The aim of this study was to evaluate the clinical significance of LVSI in stage IA endometrial cancer. Methods: Clinical data of patients with stage IA endometrial cancer who underwent initial surgery at our institution between January 2008 and December 2018 were reviewed retrospectively. Information of patients, surgery, and characteristics of cancer were obtained from medical records and pathological reports. Results: Two hundred ninety-seven patients were enrolled in this study. With a median follow-up of 60 months, 15 patients experienced recurrence (5.1%) and 4 patients died of endometrial cancer (1.3%). The recurrence and mortality rates did not differ significantly between the LVSI-positive and -negative groups (p = 0.07 and p = 0.41, respectively). Recurrence-free survival and endometrial cancer-specific survival also did not differ significantly between these groups (p = 0.11 and p = 0.49, respectively). The 5-year endometrial cancer-specific survival rates for tumors with and without LVSI were 97.0% and 98.9%, respectively. Among patients with low-grade tumors, recurrence-free survival and endometrial cancer-specific survival did not differ significantly between patients with tumors with and without LVSI (p = 0.92 and p = 0.72, respectively). The 5-year endometrial cancer-specific survival rates for low-grade tumors with and without LVSI were 100% and 99.3%, respectively. Conclusion: LVSI was not a prognostic factor of not only stage IA endometrial cancer but also stage IA low-grade cancer.
- Published
- 2021
22. Gα 13 ‐mediated LATS1 down‐regulation contributes to epithelial‐mesenchymal transition in ovarian cancer
- Author
-
Hideaki Yahata, Keisuke Kodama, Hiroshi Yagi, Ichiro Onoyama, Kiyoko Kato, Emiko Hori, Kazuo Asanoma, Tatsuhiro Ohgami, Kaoru Okugawa, Masafumi Yasunaga, Eisuke Kaneki, and Masako Kijima
- Subjects
0301 basic medicine ,Hippo signaling pathway ,biology ,Kinase ,Cancer ,medicine.disease ,Biochemistry ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Ubiquitin ,Genetics ,biology.protein ,medicine ,Cancer research ,Phosphorylation ,Epithelial–mesenchymal transition ,Ovarian cancer ,Molecular Biology ,030217 neurology & neurosurgery ,Biotechnology ,G protein-coupled receptor - Abstract
Gα13, a heterotrimeric G-protein of the Gα12/13 subfamily, is associated with aggressive phenotypes in various human cancers. However, the mechanisms by which Gα13 promotes cancer progression have not been fully elucidated. Here, we demonstrate that the activation of Gα13 induces epithelial-mesenchymal transition in ovarian cancer (OvCa) cells through down-regulation of large tumor suppressor kinase (LATS) 1, a critical component of the Hippo signaling pathway. A synthetic biology approach using a mutant GPCR and chimeric G-protein revealed that Gα13-regulated phosphorylation of LATS1 at serine 909 within its activation loop induced recruitment of the itchy E3 ubiquitin protein ligase to trigger LATS1 degradation. Our findings uncover novel mechanisms through which Gα13 activation induces dysregulation of the Hippo signaling pathway, which leads to aggressive cancer phenotypes, and thereby identify a potential target for preventing the metastatic spread of OvCa.-Yagi, H., Onoyama, I., Asanoma, K., Hori, E., Yasunaga, M., Kodama, K., Kijima, M., Ohgami, T., Kaneki, E., Okugawa, K., Yahata, H., Kato, K. Gα13-mediated LATS1 down-regulation contributes to epithelial-mesenchymal transition in ovarian cancer.
- Published
- 2019
- Full Text
- View/download PDF
23. Difficulty of cervical cancer diagnosis during pregnancy: A case series analysis of the clinicopathological characteristics and prognosis of cervical cancer diagnosed during pregnancy or within 6 months after parturition
- Author
-
Kiyoko Kato, Tatsuhiro Ohgami, Masahiro Hachisuga, Hideaki Yahata, Kenzo Sonoda, Yasuyuki Fujita, and Kaoru Okugawa
- Subjects
Cancer Research ,medicine.medical_specialty ,diagnosis ,Malignancy ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,uterine cervical neoplasms ,Cancer screening ,medicine ,parturition ,Cervical cancer ,Pregnancy ,business.industry ,Obstetrics ,Medical record ,Gestational age ,Cancer ,Articles ,medicine.disease ,Oncology ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,pregnancy ,prognosis ,medicine.symptom ,business - Abstract
Due to the recent trend of women having children at an older age, the number of pregnancies complicated by cervical cancer has increased. In the present study, the clinical characteristics of patients with cervical cancer complicated by pregnancy were analyzed. The clinicopathological characteristics and prognosis of patients with cervical cancer during pregnancy who underwent treatment at Kyushu University Hospital from January 2008 to December 2017 were assessed retrospectively from their medical records. The medical information of patients diagnosed within 6 months after parturition was also evaluated as these patients were considered to be affected by cervical cancer during pregnancy. A total of 19 women were diagnosed with cervical cancer during pregnancy (median age, 33 years), three of whom were diagnosed as negative for intraepithelial lesion or malignancy at the initial visit to a previous clinic after pregnancy. The tumor stage was IA1 in one patient, IB1 in 16 patients, IB2 in one patient and IVB in one patient. The median gestational age at the time of cervical cancer diagnosis was 13 weeks. One patient died of cervical cancer during the follow-up period. An additional 12 patients were diagnosed within 6 months after parturition. The median age of these patients was 35.5 years. Cancer screening was performed in 10 patients during pregnancy, none of whom were diagnosed with cervical cancer, including three patients who were negative for intraepithelial lesion or malignancy. Of the 12 patients, one had tumor stage IA1, eight had IB1, two had IB2 and one had IIB. Three patients experienced recurrence, of whom one died of cervical cancer. Advanced cervical cancer was diagnosed both during pregnancy and within 6 months after parturition. Diagnosis of cervical cancer during pregnancy is difficult even at an advanced stage; however, rapid diagnosis and prompt multidisciplinary treatment are critical. Therefore, it is necessary to improve the accuracy of cervical cancer diagnosis, and to characterize tumor cells and their microenvironment, during pregnancy.
- Published
- 2021
- Full Text
- View/download PDF
24. Prognostic outcomes and risk factors for recurrence after laser vaporization for cervical intraepithelial neoplasia: a single-center retrospective study
- Author
-
Keisuke Kodama, Hideaki Yahata, Kaoru Okugawa, Hiroshi Yagi, Masafumi Yasunaga, Tatsuhiro Ohgami, Ichiro Onoyama, Kazuo Asanoma, Mototsugu Shimokawa, and Kiyoko Kato
- Published
- 2021
- Full Text
- View/download PDF
25. Evaluation of the efficacy of vaginal progesterone in preventing preterm birth after abdominal trachelectomy
- Author
-
Nobuhiro Hidaka, Yuka Sato, Atsuhiko Sakai, Kiyoko Kato, Hideaki Yahata, Kaoru Okugawa, Yasuyuki Fujita, and Saki Kido
- Subjects
medicine.medical_specialty ,Abdominal trachelectomy ,Trachelectomy ,Cervix Uteri ,Pregnancy ,Medicine ,Rupture of membranes ,Humans ,Preterm premature membranes rupture ,Vaginal progesterone ,Progesterone ,Cervical cancer ,business.industry ,Obstetrics ,Incidence (epidemiology) ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,Preterm birth ,medicine.disease ,Exact test ,Administration, Intravaginal ,Reproductive Medicine ,Mann–Whitney U test ,Gestation ,Premature Birth ,Female ,Progestins ,business - Abstract
Objective: To determine whether vaginal progesterone (VP) reduces the rate of preterm birth in pregnant women after abdominal trachelectomy (AT) for early-stage cervical cancer / Study Design: This is an interventional study with a historical cohort. For the interventional study participants who had singleton pregnancies after AT between October 2016 and September 2020, the administration of vaginal progesterone was started between 16+ and 19+6 weeks of gestation and discontinued at 34 weeks of gestation or at the time of delivery, rupture of membranes, or massive uterine bleeding. We investigated obstetric and neonatal outcomes among the study participants and compared them with outcomes of the historical control group participants, included women with singleton pregnancies after AT who were managed without VP at our institution between January 2007 and September 2016, using Fisher’s exact test and the Mann–Whitney U test The main outcomes were the gestational age at delivery and incidence of preterm birth before 37 weeks and 34 weeks of gestation. / Result: Twelve pregnancies in ten women were included in the VP group. In contrast, 19 pregnancies in 17 women were included in the historical control group. The incidence of preterm birth at
- Published
- 2020
26. Prognostic outcomes and risk factors for recurrence after laser vaporization for cervical intraepithelial neoplasia: a single-center retrospective study
- Author
-
Emiko Hori, Ichiro Onoyama, Sachiko Yoshida, Kaoru Okugawa, Tatsuhiro Ohgami, Keisuke Kodama, Kazuo Asanoma, Hiroshi Tomonobe, Mototsugu Shimokawa, Masafumi Yasunaga, Hiroshi Yagi, Nobuko Yasutake, Kiyoko Kato, and Hideaki Yahata
- Subjects
0301 basic medicine ,Adult ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Uterine Cervical Neoplasms ,Single Center ,Cervical intraepithelial neoplasia ,Gastroenterology ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Surgical oncology ,Risk Factors ,Internal medicine ,medicine ,Humans ,Papillomaviridae ,Aged ,Retrospective Studies ,business.industry ,Medical record ,Hazard ratio ,Papillomavirus Infections ,Retrospective cohort study ,Hematology ,General Medicine ,Carbon dioxide laser ,Middle Aged ,medicine.disease ,Prognosis ,Uterine Cervical Dysplasia ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Surgery ,Female ,Laser Therapy ,Neoplasm Recurrence, Local ,business ,Body mass index ,Follow-Up Studies - Abstract
Cervical intraepithelial neoplasia (CIN) is a precancerous lesion that may progress to invasive cervical cancer without intervention. We aim to examine the prognostic outcomes and risk factors for recurrence after laser vaporization for CIN 3, CIN 2 with high-risk human papillomavirus (HPV) infection, and CIN 1 persisting for more than 2 years. Between 2008 and 2016, a total of 1070 patients underwent cervical laser vaporization using a carbon dioxide laser. We performed a retrospective review of their medical records to assess their clinical characteristics, pathologic factors, and prognostic outcomes. The mean patient age was 34 years (range 18–64 years). The preoperative diagnosis was CIN 1 in 27 patients, CIN 2 in 485 patients, and CIN 3 in 558 patients. Over a median follow-up period of 15 months, the 2-year recurrence rate was 18.9%, and the 5-year recurrence rate was 46.5%. The 2-year retreatment rate was 12.6%, and the 5-year retreatment rate was 30.5%. We diagnosed 9 patients with invasive cancer after treatment; all patients underwent combined multidisciplinary treatment, and there were no deaths during follow-up. The recurrence-free interval was correlated with patient age (hazard ratio [HR], 1.028; 95% CI 1.005–1.051; P = 0.0167), body mass index (HR, 1.052; 95% CI 1.008–1.098; P = 0.0191), and glandular involvement (HR, 1.962; 95% CI 1.353–2.846; P = 0.0004). Cervical laser vaporization is effective and useful for patients with CIN who wish to preserve fertility. However, patients with glandular involvement, older age, and higher body weight require close follow-up for recurrence.
- Published
- 2020
27. The validity of the subsequent pregnancy index score for fertility-sparing trachelectomy in early-stage cervical cancer
- Author
-
Takashi Iwata, Tsuyoshi Saito, Tomoaki Ikeda, Nobuo Yaegashi, Kiyoshi Yoshino, Mikio Mikami, Hideki Tokunaga, Koji Matsuo, Makio Shozu, Hiroko Machida, Kyoko Tanaka, Kaoru Okugawa, Hiroaki Kobayashi, Takayuki Enomoto, and Kenichiro Morishige
- Subjects
0301 basic medicine ,Adult ,medicine.medical_specialty ,Pregnancy Rate ,Trachelectomy ,Uterine Cervical Neoplasms ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,medicine ,Health Status Indicators ,Humans ,Stage (cooking) ,Neoplasm Staging ,Retrospective Studies ,Cervical cancer ,030219 obstetrics & reproductive medicine ,Obstetrics ,business.industry ,Reproduction ,Infant, Newborn ,Obstetrics and Gynecology ,Fertility Preservation ,Reproducibility of Results ,Retrospective cohort study ,medicine.disease ,Prognosis ,Pregnancy rate ,030104 developmental biology ,Fertility ,Reproductive Medicine ,Research Design ,Marital status ,Female ,Subsequent pregnancy ,business ,Infertility, Female ,Organ Sparing Treatments - Abstract
Objective To evaluate timing and a prediction model for pregnancy in early-stage cervical cancer patients who underwent fertility-sparing trachelectomy. Design Retrospective cohort. Setting Academic multicenter. Patient(s) Women ages Intervention(s) Planned fertility-sparing trachelectomy. Main Outcome Measure(s) Cumulative incidences and clinicopathological characteristics of those who developed subsequent pregnancy were examined. Result(s) There were 77 (21.6%) women who had subsequent pregnancies after fertility-sparing trachelectomy with 1-, 2-, and 5-year cumulative pregnancy rates of 2.8%, 6.2%, and 17.4%, respectively. The median time to develop subsequent pregnancy was 3.2 years. In a competing risk analysis, women had a higher risk of recurrent cancer than conception during the first 11 months postsurgery. On multivariable analysis, younger age, being married, and postoperative reproductive treatment were independently associated with an increased chance of developing a subsequent pregnancy. The subsequent pregnancy index (SPI) score to predict the likelihood of having pregnancy was proposed, and it was calculated based on age, marital status, and reproductive treatment (2, 2, and 4 points, respectively). Women with a higher SPI score had significantly higher subsequent pregnancy rates (5-year pregnancy rate; the score was 3 in 4.7% of cases; 4 to 5 in 11.3%; 6 to 7 in 27.4%; and 8 in 50.8%), but they had similar recurrence rates (5.0%). Conclusion(s) The SPI score proposed in our study is useful in predicting subsequent pregnancy in women with early-stage cervical cancer undergoing fertility-sparing trachelectomy.
- Published
- 2020
28. Evaluation of adjuvant chemotherapy after abdominal trachelectomy for cervical cancer: a single-institution experience
- Author
-
Kaoru Okugawa, Tatsuhiro Ohgami, Eisuke Kaneki, Kiyoko Kato, Hiroaki Kobayashi, Kazuo Asanoma, Kenzo Sonoda, Hideaki Yahata, Ichiro Onoyama, Keisuke Kodama, Hiroshi Yagi, and Masafumi Yasunaga
- Subjects
0301 basic medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Trachelectomy ,Uterine Cervical Neoplasms ,03 medical and health sciences ,0302 clinical medicine ,Surgical oncology ,Pregnancy ,medicine ,Humans ,Fertility preservation ,Survival rate ,Neoplasm Staging ,Retrospective Studies ,Cervical cancer ,Chemotherapy ,business.industry ,Cancer ,Fertility Preservation ,Hematology ,General Medicine ,medicine.disease ,Surgery ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Vagina ,Female ,Neoplasm Recurrence, Local ,business - Abstract
To avoid the loss of fertility, chemotherapy should be chosen as an adjuvant treatment after trachelectomy. Our study evaluated the effectiveness and safety of adjuvant chemotherapy after abdominal trachelectomy for cervical cancer. Our institutional review board approved this clinical study, and informed consent was obtained from each patient. We began performing abdominal trachelectomy at our institution in 2005. Deep stromal invasion (more than two-thirds) with lymphovascular space invasion, diffuse cervical invasion, skip lesions in the vagina, and lymphovascular space invasion in the cardinal ligament and vagina were defined as intermediate-risk factors, and parametrial invasion and pelvic lymph node metastasis were defined as high-risk factors. Patients who had intermediate- or high-risk factors received post-trachelectomy adjuvant treatment. The medical records and information of the patients were reviewed retrospectively. Through January 2020, we performed 212 trachelectomies. Among the included patients, 16 and 7 patients with intermediate- and high-risk cancer, respectively, received adjuvant chemotherapy after trachelectomy (2 and 21 patients underwent abdominal modified radical trachelectomy and radical trachelectomy, respectively). Among these patients, only one (4.3%) experienced relapse and subsequent death of the disease after a median postoperative follow-up of 80 months (range 12–146 months). The 5-year survival rate was 95.5%. Chemotherapy-related life-threatening acute adverse events were not observed. Persistent ovarian dysfunction and late adverse events did not occur. One woman achieved three pregnancies, and two infants were delivered. Adjuvant chemotherapy after abdominal trachelectomy could be an alternative treatment option from the aspects of effectiveness, safety, and fertility preservation.
- Published
- 2020
29. Is Adjuvant Therapy Necessary for Patients with Intermediate-Risk Cervical Cancer after Open Radical Hysterectomy?
- Author
-
Hiroshi Yagi, Hideaki Yahata, Nobuko Yasutake, Kazuo Asanoma, Kaoru Okugawa, Keisuke Kodama, Tatsuhiro Ohgami, Kenzo Sonoda, Masafumi Yasunaga, Shusaku Inoue, Kiyoko Kato, Ichiro Onoyama, and Eisuke Kaneki
- Subjects
Adult ,Cancer Research ,medicine.medical_specialty ,Uterine Cervical Neoplasms ,Disease ,Hysterectomy ,Risk Assessment ,Stromal Invasion ,03 medical and health sciences ,0302 clinical medicine ,Adjuvant therapy ,Medicine ,Humans ,Neoplasm Invasiveness ,030212 general & internal medicine ,Postoperative Period ,Radical Hysterectomy ,Survival rate ,Aged ,Cervical cancer ,business.industry ,Cancer ,General Medicine ,Middle Aged ,medicine.disease ,Lymphovascular ,Surgery ,Oncology ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Female ,Neoplasm Recurrence, Local ,business - Abstract
Introduction: Adjuvant therapy is usually recommended for patients with intermediate-risk cervical cancer (deep stromal invasion [DSI], lymphovascular space invasion [LVSI], and bulky tumor) after radical hysterectomy. However, we previously reported that DSI, LVSI, and bulky squamous cell carcinoma (SCC) were not correlated with prognosis in multivariate analysis; therefore, the indications we use for adjuvant therapy include complete stromal invasion, not DSI or LVSI or bulky SCC. The objective of this study was to evaluate the adequacy of our therapeutic strategy for cervical cancer after radical hysterectomy. Methods: We performed 321 type III open radical hysterectomies for cervical cancer between 2001 and 2013. Eighty-two patients with DSI, LVSI, or bulky SCC did not receive adjuvant therapy after radical hysterectomy under informed consent. We retrospectively evaluated the prognosis of these 82 patients. Results: Forty-two patients had >2/3 DSI and 35 patients had 1/3–2/3 DSI. Five patients had LVSI alone. The mean patient age was 43 years (range, 27–72). Six patients (7%) experienced recurrence during a median follow-up period of 84 months (range, 1–206). Two of the 6 patients with recurrence suffered cervical cancer-related deaths, but the remaining 4 cases are alive without evidence of disease after treatment during a follow-up period of 87–165 months. The 5-year disease-free survival rate was 92.6%, and the 5-year overall survival rate was 96.3%. Conclusions: Adjuvant therapy for DSI, LVSI, or bulky SCC after open radical hysterectomy might not be necessary. Further data collection is warranted to determine the standard of care for patients with intermediate-risk cervical cancer.
- Published
- 2020
30. Nonlinear Optics with Near-Infrared Excitation Enable Real-Time Quantitative Diagnosis of Human Cervical Cancers
- Author
-
Masaru Ishii, Seiji Taniguchi, Eiichi Morii, Junichi Kikuta, Kaoru Okugawa, Yasujiro Kiyota, Kiyoko Kato, Takao Sudo, Masafumi Mimura, Shinya Matsuzaki, Takahiro Matsui, Hiroki Mizuno, Tetsuo Hasegawa, Ichiro Onoyama, Ryo Tamoto, Mayu Shiomi, Tadashi Kimura, and Akio Iwasa
- Subjects
0301 basic medicine ,Adult ,Cancer Research ,Nonlinear Optical Microscopy ,Computer science ,Early detection ,Uterine Cervical Neoplasms ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Imaging, Three-Dimensional ,Biopsy ,medicine ,Animals ,Humans ,Cervix ,Intraepithelial neoplasia ,Invasive carcinoma ,medicine.diagnostic_test ,Nonlinear optics ,Near infrared excitation ,Middle Aged ,Cervical tissue ,Mice, Inbred C57BL ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Female ,Biomedical engineering - Abstract
Histopathologic analysis through biopsy has been one of the most useful methods for the assessment of malignant neoplasms. However, some aspects of the analysis such as invasiveness, evaluation range, and turnaround time from biopsy to report could be improved. Here, we report a novel method for visualizing human cervical tissue three-dimensionally, without biopsy, fixation, or staining, and with sufficient quality for histologic diagnosis. Near-infrared excitation and nonlinear optics were employed to visualize unstained human epithelial tissues of the cervix uteri by constructing images with third-harmonic generation (THG) and second-harmonic generation (SHG). THG images enabled evaluation of nuclear morphology in a quantitative manner with six parameters after image analysis using deep learning. It was also possible to quantitatively assess intraepithelial fibrotic changes based on SHG images and another deep learning analysis. Using each analytical procedure alone, normal and cancerous tissue were classified quantitatively with an AUC ≥0.92. Moreover, a combinatory analysis of THG and SHG images with a machine learning algorithm allowed accurate classification of three-dimensional image files of normal tissue, intraepithelial neoplasia, and invasive carcinoma with a weighted kappa coefficient of 0.86. Our method enables real-time noninvasive diagnosis of cervical lesions, thus constituting a potential tool to dramatically change early detection. Significance: This study proposes a novel method for diagnosing cancer using nonlinear optics, which enables visualization of histologic features of living tissues without the need for any biopsy or staining dye.
- Published
- 2020
31. Infertility after abdominal trachelectomy
- Author
-
Katsuko Egashira, Tomoko Matsushita, Natsuko Yokota, Kaoru Okugawa, Hideaki Yahata, Teruhiko Kawamura, Kana Hiasa, Kiyoko Kato, and Kenzo Sonoda
- Subjects
Adult ,Infertility ,medicine.medical_specialty ,Trachelectomy ,media_common.quotation_subject ,Fertility ,Asherman's syndrome ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Obstetrics and gynaecology ,medicine ,Humans ,Fertility preservation ,Retrospective Studies ,media_common ,030219 obstetrics & reproductive medicine ,business.industry ,Obstetrics ,Medical record ,Fertility Preservation ,Obstetrics and Gynecology ,Retrospective cohort study ,General Medicine ,medicine.disease ,030220 oncology & carcinogenesis ,Female ,business ,Infertility, Female ,Follow-Up Studies - Abstract
INTRODUCTION Despite numerous reports on pregnancy outcomes after trachelectomy, there are few descriptions of fertility treatment after trachelectomy. Moreover, little is known about the differences in fertility outcomes between various radical trachelectomy procedures. The purpose of this report was to clarify the infertility problems that occur in patients who have previously undergone an abdominal trachelectomy. MATERIAL AND METHODS We retrospectively investigated the medical records of 37 patients who received fertility treatments or were evaluated for menstrual disorders after trachelectomies in our institution between 2012 and 2016. RESULTS Twenty-two of 37 patients had complications which affected fecundity. Six patients had cervical stenosis requiring surgical dilation, 4 had ovarian insufficiency, and 14 had Asherman's syndrome. CONCLUSIONS In spite of efforts to preserve fertility, some patients have severe complications after trachelectomy, such as Asherman's syndrome, resulting in infertility. Clinicians should pay careful attention to the status of the endometrial cavity after trachelectomy.
- Published
- 2018
- Full Text
- View/download PDF
32. Two types of small cell carcinoma of the ovary: Two typical case reports
- Author
-
Hideaki Yahata, Eisuke Kaneki, Hiroshi Yagi, Keisuke Kodama, Kiyoko Kato, Kenzo Sonoda, Ichiro Onoyama, Tatsuhiro Ohgami, Masafumi Yasunaga, Shinichiro Yamaguchi, Yu Yoshida, Kaoru Okugawa, and Masako Kijima
- Subjects
0301 basic medicine ,Pathology ,medicine.medical_specialty ,medicine.medical_treatment ,Case Report ,Ovary ,Chemo sensitivity ,Small-cell carcinoma ,03 medical and health sciences ,0302 clinical medicine ,SMARCA4 ,medicine ,Small cell carcinoma ,Pulmonary type ,Chemotherapy ,business.industry ,Hypercalcemic type ,Obstetrics and Gynecology ,medicine.disease ,Radiation therapy ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,business - Abstract
Highlights • This report shows very rare cases of small cell carcinoma of the ovary, hypercalcemic type and pulmonary type. • Their chemo sensitivity is quite different. These two cases followed opposite clinical courses. • The first case (SCOHT) progressed rapidly, and showed resistance to chemotherapy and radiotherapy. • The second case (SCOPT) showed sensitivity to chemotherapy and radiotherapy although recurrence was repeated.
- Published
- 2018
- Full Text
- View/download PDF
33. Benefits of an automated screening system for quality control of cervical cytology
- Author
-
Tetsuro Oishi, Mizue Oda, Kuniko Iihara, Hiroshi Sasaki, Kaoru Okugawa, Kiyoko Kato, Toru Tase, Masatsugu Ueda, Kisaburo Ueno, Kenji Yanoh, Yuko Sugiyama, Toshiko Jobo, Kyoko Komatsu, Hiromasa Fujita, Masako Suzuki, Shinji Miyake, Hiroaki Itamochi, Eisaku Toji, Minoru Tagami, Shigeharu Hatakeyama, Junzo Fujiyama, Shigenori Ohtsuka, Takuya Moriya, and Ryuji Yabushita
- Subjects
medicine.medical_specialty ,business.industry ,media_common.quotation_subject ,Medicine ,Quality (business) ,Medical physics ,Cervical cytology ,business ,media_common - Published
- 2018
- Full Text
- View/download PDF
34. Gα
- Author
-
Hiroshi, Yagi, Ichiro, Onoyama, Kazuo, Asanoma, Emiko, Hori, Masafumi, Yasunaga, Keisuke, Kodama, Masako, Kijima, Tatsuhiro, Ohgami, Eisuke, Kaneki, Kaoru, Okugawa, Hideaki, Yahata, and Kiyoko, Kato
- Subjects
Ovarian Neoplasms ,Epithelial-Mesenchymal Transition ,Tumor Suppressor Proteins ,Ubiquitin-Protein Ligases ,Ubiquitination ,Down-Regulation ,Protein Serine-Threonine Kinases ,GTP-Binding Protein alpha Subunits, G12-G13 ,Cell Line ,HEK293 Cells ,Humans ,Female ,Phosphorylation ,Signal Transduction - Abstract
Gα
- Published
- 2019
35. Survey of the desire to have children and engage in sexual activity after trachelectomy among young Japanese women with early-stage cervical cancer
- Author
-
Tatsuhiro Ohgami, Hiroshi Yagi, Hideaki Yahata, Kazuo Asanoma, Masafumi Yasunaga, Kenzo Sonoda, Eisuke Kaneki, Kiyoko Kato, Ichiro Onoyama, and Kaoru Okugawa
- Subjects
Adult ,medicine.medical_specialty ,Libido ,Sexual Behavior ,Trachelectomy ,Uterine Cervical Neoplasms ,Postoperative Complications ,Japan ,Informed consent ,Surveys and Questionnaires ,Medicine ,Humans ,Postoperative Period ,Stage (cooking) ,Neoplasm Staging ,Cervical cancer ,Response rate (survey) ,Family Characteristics ,business.industry ,Obstetrics ,Obstetrics and Gynecology ,Questionnaire ,Fertility Preservation ,medicine.disease ,Sexual intercourse ,Dyspareunia ,Female ,business - Abstract
Aim To evaluate how the desire to have children and engage in sexual activity change after trachelectomy in Japanese women with early-stage cervical cancer who strongly desired to have children before surgery. Methods Desire to have children, coital pain, fear of sexual intercourse, sexual activity frequency and libido were assessed in cervical cancer patients who received follow-up after trachelectomy. An anonymous questionnaire survey was conducted via informed consent. Results Of the 151 patients who underwent trachelectomy at Kyushu University Hospital between 2005 and 2015, 46 patients were evaluated; the response rate was 30%. The desire to have children disappeared in 13 of 46 (28%) patients, and 14 (30%) patients experienced increased coital pain. Moreover, 19 (41%) patients experienced fear of sexual intercourse, and sexual frequency decreased in 24 (52%) patients. Conclusion Trachelectomy is an important fertility-sparing surgical method; however, this study revealed loss of the desire to have children and/or to engage in sexual activity in some patients after surgery. Counseling about these issues is important and should be addressed.
- Published
- 2019
36. Mutual suppression between BHLHE40/BHLHE41 and the MIR301B-MIR130B cluster is involved in epithelial-to-mesenchymal transition of endometrial cancer cells
- Author
-
Sachiko Yoshida, Eisuke Kaneki, Emiko Hori, Ichiro Onoyama, Kazuo Asanoma, Tatsuhiro Ohgami, Keisuke Kodama, Kiyoko Kato, Kaoru Okugawa, Masafumi Yasunaga, Hideaki Yahata, and Hiroshi Yagi
- Subjects
0301 basic medicine ,General transcription factor ,microRNA ,Chemistry ,Endometrial cancer ,Cell ,Promoter ,medicine.disease ,cell invasion ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,endometrial cancer ,medicine ,Cancer research ,Epithelial–mesenchymal transition ,epithelial-to-mesenchymal transition ,Binding site ,Transcription factor ,transcription factor ,Research Paper - Abstract
BHLHE40 and BHLHE41 (BHLHE40/41) are basic helix-loop-helix type transcription factors involved in multiple cell activities including epithelial-to-mesenchymal transition (EMT). However, the expression mechanism of BHLHE40/41 in EMT remains unclear. In the present study, we showed that the expression levels of BHLHE40/41 were negatively correlated with those of the microRNA (MIR) 130 family in endometrial cancer (EC) specimens. Our in vitro assays indicated that the expression of BHLHE40/41 was suppressed directly by the MIR130 family in a 3'-untranslated region-mediated manner. In EC cells, the MIR130 family promoted EMT and tumor cell invasion by suppressing the expression of BHLHE40/41. We identified the critical promoter region of the MIR301B-MIR130B cluster for its basal transcription by the transcription factor, SP1. We also found that BHLHE40/41 suppressed the expression of MIR301B and MIR130B, and we identified a binding site in the promoter region for BHLHE40/41. This study is the first to report that BHLHE40/41 and the MIR301B-MIR130B cluster suppressed each other to regulate EMT and invasion of EC cells. We propose that BHLHE40/41 and the MIR130 family are excellent markers to predict the progression of EC cases, and that molecular therapy targeting the MIR130 family-BHLHE40/41 axis may effectively control EC extension.
- Published
- 2019
37. Safety evaluation of abdominal trachelectomy in patients with cervical tumors ≥2 cm: a single-institution, retrospective analysis
- Author
-
Hideaki Yahata, Kenzo Sonoda, Kaoru Okugawa, Eisuke Kaneki, Tatsuhiro Ohgami, Kiyoko Kato, and Masafumi Yasunaga
- Subjects
Adult ,medicine.medical_specialty ,Adenosquamous carcinoma ,medicine.medical_treatment ,Trachelectomy ,Sentinel lymph node ,Uterine Cervical Neoplasms ,Cervix ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Medicine ,Humans ,In patient ,Neoplasm Staging ,Retrospective Studies ,Frozen section procedure ,030219 obstetrics & reproductive medicine ,Hysterectomy ,business.industry ,Mortality rate ,Obstetrics and Gynecology ,General Medicine ,medicine.disease ,Treatment Outcome ,Oncology ,030220 oncology & carcinogenesis ,Adenocarcinoma ,Female ,Original Article ,Radiology ,Neoplasm Recurrence, Local ,business - Abstract
Objective: For oncologic safety, vaginal radical trachelectomy is generally performed only in patients with cervical cancers smaller than 2 cm. However, because inclusion criteria for abdominal trachelectomy are controversial, we evaluated the safety of abdominal trachelectomy for cervical cancers ≥2 cm. / Methods: We began performing abdominal trachelectomies at our institution in 2005, primarily for squamous cell carcinoma ≤3 cm or adenocarcinoma/adenosquamous carcinoma ≤2 cm. If a positive sentinel lymph node or cervical margin was diagnosed intraoperatively by frozen section, the trachelectomy was converted to a hysterectomy. Medical records of these patients were reviewed retrospectively. Patients who had undergone simple abdominal trachelectomy were excluded from this study. / Results: We attempted trachelectomy in 212 patients. Among the 135 patients with tumors
- Published
- 2019
38. Oncologic and obstetric outcomes and complications during pregnancy after fertility-sparing abdominal trachelectomy for cervical cancer: a retrospective review
- Author
-
Kenzo Sonoda, Kaoru Okugawa, Kiyoko Kato, Eisuke Kaneki, Nobuhiro Hidaka, Hiroaki Kobayashi, Yasuyuki Fujita, Hideaki Yahata, Katsuko Egashira, and Yoshiaki Kawano
- Subjects
Adult ,medicine.medical_specialty ,Pregnancy Rate ,Trachelectomy ,Uterine Cervical Neoplasms ,Adenocarcinoma ,Young Adult ,03 medical and health sciences ,Gynecologic Surgical Procedures ,0302 clinical medicine ,Pregnancy ,Abdomen ,Humans ,Medicine ,Cervix ,Retrospective Studies ,Cervical cancer ,030219 obstetrics & reproductive medicine ,business.industry ,Obstetrics ,Medical record ,Pregnancy Outcome ,Fertility Preservation ,Hematology ,General Medicine ,medicine.disease ,Institutional review board ,Surgery ,Pregnancy Complications ,Pregnancy rate ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Carcinoma, Squamous Cell ,Female ,Varices ,business ,Organ Sparing Treatments - Abstract
Trachelectomy was developed as a fertility-sparing surgery for early-stage cervical cancer in patients of childbearing age. The purpose of this study is to evaluate oncologic and obstetric outcomes and complications after abdominal trachelectomy. We began to perform abdominal trachelectomy in 2005. Our institutional review board approved this clinical study, and fully informed consent was obtained from each patient. The medical records of patients who underwent trachelectomy were retrospectively reviewed. We performed 151 abdominal trachelectomies (89 radical trachelectomies, 48 modified radical trachelectomies, and 14 simple trachelectomies). The median age of the patients was 33 years, and the median postoperative follow-up period was 61 months. Although one patient experienced recurrence at the preserved cervix, none died after treatment. A total of 61 patients attempted to conceive after trachelectomy, and 21 pregnancies were achieved in 15 women. Hence, the pregnancy rate among patients who attempted to conceive was 25%. Fifteen babies were delivered by cesarean section between gestational weeks 23 and 37. Six babies were delivered at term. Six cases of preterm premature rupture of the membranes occurred. Varices appeared around the uterovaginal anastomotic site in five patients. Our data indicate that the oncologic outcome was excellent but infertility treatment was necessary to achieve the majority of conceptions. Additionally, preterm premature rupture of the membranes and premature delivery were frequently observed. An improved pregnancy rate and prevention of complications during pregnancy are issues that should be addressed in future studies.
- Published
- 2016
- Full Text
- View/download PDF
39. Pelvic abscess: A late complication of abdominal trachelectomy for cervical cancer
- Author
-
Kaoru, Okugawa, Kenzo, Sonoda, Tatsuhiro, Ohgami, Masafumi, Yasunaga, Eisuke, Kaneki, Hideaki, Yahata, and Kiyoko, Kato
- Subjects
Adult ,Young Adult ,Postoperative Complications ,Time Factors ,Pelvic Infection ,Trachelectomy ,Humans ,Uterine Cervical Neoplasms ,Female ,Abscess ,Retrospective Studies - Abstract
Only a few reports of pelvic abscess as a late complication of trachelectomy have been published to date. To evaluate the cases of pelvic abscess as a late complication of abdominal trachelectomy for cervical cancer.In June 2005, we began a clinical trial of abdominal trachelectomy at our institution. Written informed consent was obtained from all patients. We retrospectively reviewed the medical records of patients who underwent trachelectomy and extracted the data of patients who experienced pelvic abscess as a late complication.From June 2005 to September 2017, we performed 181 trachelectomies at our institution. In total, 15 pelvic abscesses occurred in 12 of these patients more than 1 month after trachelectomy. The median postoperative period before the onset of pelvic abscess was 51 months (range, 1-104 months). Among the 15 cases, abscess formed in the uterine adnexa in 12, in a pelvic lymphocyst in two, and in the uterus in one. Abscess drainage was performed in six cases. Three patients underwent laparotomy with salpingo-oophorectomy.It is possible that not only surgical removal of the uterine cervix but also the use of nonabsorbable suture in cervical cerclage and placement of an intrauterine device triggered post-trachelectomy infection. Pelvic abscess can occur as a late complication of abdominal trachelectomy.
- Published
- 2018
40. Isthmic-vaginal cytological findings after a trachelectomy for early-stage cervical cancer
- Author
-
Masaki Naka, K. Nakatsuki, N. Terado, Koh Hei Sonoda, Hideaki Yahata, Tsunehisa Kaku, Kaoru Okugawa, Kiyoko Kato, Yoshinao Oda, Eisuke Kaneki, and Fumihiko Ookubo
- Subjects
Adult ,medicine.medical_specialty ,Histology ,Cytodiagnosis ,Trachelectomy ,MEDLINE ,Uterine Cervical Neoplasms ,030209 endocrinology & metabolism ,Pathology and Forensic Medicine ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,Young adult ,Stage (cooking) ,Neoplasm Staging ,Vaginal Smears ,Cervical cancer ,Gynecology ,business.industry ,General Medicine ,medicine.disease ,030220 oncology & carcinogenesis ,Vagina ,Female ,Neoplasm staging ,business - Published
- 2016
- Full Text
- View/download PDF
41. Value of Intraoperative Cytological and Pathological Sentinel Lymph Node Diagnosis in Fertility-Sparing Trachelectomy for Early-Stage Cervical Cancer
- Author
-
Yoshinao Oda, Hiroshi Honda, Kiyoko Kato, Eisuke Kaneki, Masafumi Yasunaga, Hideaki Yahata, Kenzo Sonoda, Shingo Baba, Tatsuhiro Ohgami, and Kaoru Okugawa
- Subjects
Adult ,Cancer Research ,medicine.medical_specialty ,Trachelectomy ,Sentinel lymph node ,Uterine Cervical Neoplasms ,Sensitivity and Specificity ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,medicine ,Frozen Sections ,Humans ,Stage (cooking) ,Pathological ,Neoplasm Staging ,Retrospective Studies ,Cervical cancer ,Gynecology ,Frozen section procedure ,030219 obstetrics & reproductive medicine ,business.industry ,Sentinel Lymph Node Biopsy ,Micrometastasis ,Retrospective cohort study ,General Medicine ,medicine.disease ,Oncology ,Neoplasm Micrometastasis ,030220 oncology & carcinogenesis ,Lymphatic Metastasis ,Female ,Radiology ,Sentinel Lymph Node ,business - Abstract
Background and Objectives: Trachelectomy, a fertility-sparing surgery for early-stage cervical cancer, can be performed only when there is no extrauterine extension present. Therefore, identifying the sentinel lymph nodes (SLNs) and using them to obtain an intraoperative pathologic diagnosis can provide information on the feasibility and safety of trachelectomy. Our aim was to assess the value of an intraoperative SLN diagnosis. Methods: We retrospectively analyzed the accuracy of intraoperative imprint cytology and frozen-section examination in 201 patients at our institution in whom trachelectomy was planned. Results: All patients could be evaluated for SLNs; a total of 610 SLNs were analyzed. Although the specificity of both imprint cytology and frozen-section examination was 100.0%, the sensitivity was only 58.6 and 65.5%, respectively. The diagnostic sensitivity was higher in 2-mm slices along the short axis than on bisection along the longitudinal axis. Imprint cytology correctly diagnosed 2 patients who had false-negative results on frozen section. The nature of the metastatic foci that caused an intraoperative false-negative diagnosis was either micrometastasis or isolated tumor cells. Conclusions: The accuracy of intraoperative SLN diagnosis requires improvement, especially when small metastatic foci are present.
- Published
- 2017
42. Surgical treatment and outcome of early invasive adenocarcinoma of the uterine cervix (FIGO stage IA1)
- Author
-
Eisuke Kaneki, Yoshiaki Kawano, Masafumi Yasunaga, Hideaki Yahata, Tsunehisa Kaku, Kaoru Okugawa, Kenzo Sonoda, Kiyoko Kato, and Tatsuhiro Ohgami
- Subjects
0301 basic medicine ,Oncology ,Adult ,medicine.medical_specialty ,medicine.medical_treatment ,Uterine Cervical Neoplasms ,Trachelectomy ,Adenocarcinoma ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Early Invasive Cervical Adenocarcinoma ,Internal medicine ,Medicine ,Humans ,Neoplasm Invasiveness ,Stage (cooking) ,Aged ,Neoplasm Staging ,Simple hysterectomy ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Cervical conization ,Surgery ,030104 developmental biology ,Treatment Outcome ,030220 oncology & carcinogenesis ,Lymphadenectomy ,Female ,business - Abstract
Aim To investigate the surgical outcome of FIGO stage IA1 cervical adenocarcinoma. Methods Between 2005 and 2011, 12 patients from Kyushu University Hospital had cervical adenocarcinoma, with a tumor depth of less than 3 mm and a horizontal width of less than 7 mm (FIGO stage IA1), diagnosed by cervical conization. All patients underwent simple hysterectomy or simple trachelectomy with pelvic lymphadenectomy. Results The mean patient age was 34 years (range, 26-70 years). The median follow-up period was 70.5 months (range, 26-99 months). No pelvic lymph-node metastasis was seen, and no patient experienced disease recurrence. Conclusion Early invasive cervical adenocarcinoma with a depth of invasion of 3 mm or less and a horizontal spread of 7 mm or less has little potential for nodal metastasis or recurrence. Therefore, simple hysterectomy or trachelectomy, without lymphadenectomy, might be an alternative treatment option for stage IA1 cervical adenocarcinoma.
- Published
- 2016
43. A Multi-Institutional Feasibility Study on the Use of Automated Screening Systems for Quality Control Rescreening of Cervical Cytology
- Author
-
Toru Tase, Ryuji Yabushita, Hiromasa Fujita, Hiroshi Sasaki, Eiji Nakatani, Yuko Sugiyama, Mizue Oda, Hiroaki Itamochi, Kaoru Okugawa, Kyoko Komatsu, Takuya Moriya, Masatsugu Ueda, and Kenji Yanoh
- Subjects
Quality Control ,medicine.medical_specialty ,Histology ,Uterine Cervical Neoplasms ,Cervix Uteri ,Cervical cancer screening ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Cytology ,Medicine ,Humans ,Mass Screening ,False Negative Reactions ,Retrospective Studies ,Gynecology ,Vaginal Smears ,business.industry ,Cervical cytology ,General Medicine ,030224 pathology ,medicine.disease ,Uterine Cervical Dysplasia ,Squamous intraepithelial lesion ,030220 oncology & carcinogenesis ,Carcinoma, Squamous Cell ,Feasibility Studies ,Female ,Radiology ,Squamous Intraepithelial Lesions of the Cervix ,business - Abstract
Objective: To evaluate the efficacy of the automated screening system FocalPoint for cervical cytology quality control (QC) rescreening. False-negative rates (FNRs) were evaluated by a multi-institutional retrospective study. Study Design: Cervical cytology slides that had already been reported as negative for intraepithelial lesion or malignancy (NILM) were chosen arbitrarily for FocalPoint rescreening. Slides stratified into the highest 15% probability of being abnormal were rescreened by a cytotechnologist. The slides that were abnormal were reevaluated by a cytopathologist to be false negatives. Results: Rescreening of 12,000 slides, i.e. 9,000 conventional slides and 3,000 liquid-based cytology (LBC) slides, was performed; 9,826 (7,393 conventional and 2,433 LBC) were satisfactory for FocalPoint (2,174 were determined unsatisfactory) and those within the highest 15% of probability (1,496, i.e. 1,123 conventional and 373 LBC) were rescreened. As a result, 117 (96 conventional and 21 LBC) were determined as abnormal (other than NILM) and the FNR was 1.19%. Among these 117 slides, 40 (35 conventional and 5 LBC) were determined as high-grade squamous intraepithelial lesion and greater (HSIL+). Conclusion: Of 117 (1.19%) abnormal slides detected, 40 (0.41%) were determined to be HSIL+. This result suggests that FocalPoint is effective for QC rescreening of cervical cytology.
- Published
- 2016
44. The Level of RCAS1 Expression Is Inversely Correlated With the Number of Vimentin-Positive Stromal Cells in Epithelial Ovarian Cancer
- Author
-
Kenzo Sonoda, Shuichi Taniguchi, Kaoru Okugawa, Hiroaki Kobayashi, Norio Wake, Shinji Ogawa, and Shingo Miyamoto
- Subjects
Adult ,Oncology ,medicine.medical_specialty ,Stromal cell ,Angiogenesis ,Blotting, Western ,Connective tissue ,Vimentin ,Metastasis ,Immunoenzyme Techniques ,Antigens, Neoplasm ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,Neoplasms, Glandular and Epithelial ,Fibroblast ,Survival rate ,Aged ,Neoplasm Staging ,Ovarian Neoplasms ,biology ,business.industry ,Obstetrics and Gynecology ,Fibroblasts ,Middle Aged ,Prognosis ,medicine.disease ,Survival Rate ,medicine.anatomical_structure ,Microvessels ,biology.protein ,Cancer research ,Immunohistochemistry ,Female ,Stromal Cells ,business - Abstract
Expression of RCAS1 is significantly associated with clinical prognosis in 15 different types of human cancer. We have previously reported that RCAS1 expression is correlated with a decreasing number of vimentin-positive stromal cells in cervical cancer. Moreover, RCAS1 expression is related to the expression of matrix metalloprotease 1 and laminin 5 and angiogenesis. We examined whether RCAS1 contributes to connective tissue remodeling in epithelial ovarian cancer. RCAS1 expression was studied retrospectively via immunohistochemistry. Samples were obtained from resected tumor tissues from 65 patients with epithelial ovarian cancer. Statistical analysis was done to correlate RCAS1 expression and clinicopathologic variables. The associations between RCAS1 expression and the number of vimentin-positive cells or microvessel density were evaluated. Western blot analysis was also performed to verify the perturbation of vimentin expression in fibroblast L cells, following stimulation by soluble RCAS1. RCAS1 expression was detected in 72.3% (47/65 total cases) and significantly correlated with age and histological subtype. Patients with advanced stage, positive lymph node metastasis, or positive peritoneal cytological results had significantly shorter overall survival rates; however, no significant relationship was detected between RCAS1 immunoreactivity and overall survival. In the connective tissue surrounding tumor cells, the number of cells expressing vimentin significantly decreased in relation to the RCAS1 expression level. The growth of L cells was suppressed after stimulation by soluble RCAS1, and the expression of vimentin was markedly diminished. RCAS1 may contribute to connective tissue remodeling by altering the number of vimentin-positive cells in epithelial ovarian cancer.
- Published
- 2009
- Full Text
- View/download PDF
45. Retrospective Analysis of Concurrent Chemoradiation with Triweekly Cisplatin plus 5-Fluorouracil Versus Weekly Cisplatin in Cervical Cancer
- Author
-
Kenzo, Sonoda, Hideaki, Yahata, Akimasa, Ichinoe, Kaoru, Okugawa, Eisuke, Kaneki, Yoshiaki, Kawano, Hironori, Kenjo, Tatsuhiro, Ohgami, Hiroshi, Yagi, Saiji, Ohga, Kaori, Asai, Katsumasa, Nakamura, Hiroshi, Honda, and Kiyoko, Kato
- Subjects
Adult ,Male ,Uterine Cervical Neoplasms ,Chemoradiotherapy ,Middle Aged ,Disease-Free Survival ,Drug Administration Schedule ,Antineoplastic Combined Chemotherapy Protocols ,Carcinoma, Squamous Cell ,Humans ,Female ,Fluorouracil ,Cisplatin ,Aged ,Randomized Controlled Trials as Topic - Abstract
Concurrent chemoradiation (CCRT) is the standard treatment for locally advanced cervical cancer. The purpose of the study was to compare the outcomes of triweekly cisplatin plus 5-fluorouracil and weekly cisplatin regimens.We retrospectively reviewed data from 91 patients with stage IB1-IVA cervical cancer.Out of 91 patients, 48 received triweekly CCRT and 43 received weekly CCRT. For triweekly CCRT, patients received a median of two chemotherapy cycles and median total doses of cisplatin and 5-fluorouracil were 210 mg/body and 8,525 mg/body, respectively. For weekly CCRT, patients received a median of five chemotherapy cycles and the median total dose of cisplatin was 252 mg/body. No statistically significant differences in overall survival or progression-free survival were noted between the two groups.Both triweekly CCRT and weekly CCRT appear to have similar efficacy for cervical cancer patients, but the toxicities were better tolerable in weekly CCRT.
- Published
- 2015
46. Adenovirus-Mediated Calponin h1 Gene Therapy Directed against Peritoneal Dissemination of Ovarian Cancer: Bifunctional Therapeutic Effects on Peritoneal Cell Layer and Cancer Cells
- Author
-
Shun'ichiro Taniguchi, Hiroaki Kobayashi, Kaoru Okugawa, Hitoo Nakano, Shigenari Hashimoto, Tomonori Ogura, Toshio Hirakawa, Norio Wake, Kiyoko Kato, and Yousuke Ueoka
- Subjects
Cancer Research ,Pathology ,medicine.medical_specialty ,Stromal cell ,Genetic enhancement ,Genetic Vectors ,Transplantation, Heterologous ,Cell ,Mice, Nude ,Biology ,Transfection ,Adenoviridae ,Mice ,Cell Line, Tumor ,medicine ,Animals ,Humans ,Peritoneal Cavity ,Cells, Cultured ,Peritoneal Neoplasms ,Ovarian Neoplasms ,Mice, Inbred BALB C ,Calcium-Binding Proteins ,Microfilament Proteins ,Cancer ,Genetic Therapy ,medicine.disease ,Xenograft Model Antitumor Assays ,medicine.anatomical_structure ,Oncology ,Cell culture ,Cancer cell ,Cancer research ,Female ,Ovarian cancer - Abstract
Purpose: Calponin h1 (CNh1), one of the family of actin-binding proteins, stabilizes the filaments of actin and modulates various cellular biological phenotypes. Recent studies revealed the close correlation between the invasive tumor spread and the reduced expression of CNh1 and α-smooth muscle actin in the surrounding stromal cells. The purpose of this study is to evaluate the efficacy of i.p. CNh1 gene therapy against peritoneal dissemination of ovarian cancer. Experimental Design: We used an adenoviral vector to induce the CNh1 gene into peritoneal cells and ovarian cancer cells as a means of enhancing or inducing the expression of α-smooth muscle actin as well as CNh1. The efficacy of gene transfer was examined by in vitro cell culture and in vivo animal experiments. Results: The formation of longer and thicker actin fibers was observed in each transfected cell line, and the localization of these fibers coincided with that of externally transducted CNh1. With respect to changes in cell behavior, the CNh1-transfected peritoneal cells acquired an ability to resist ovarian cancer-induced shrinkage in cell shape; thus, cancer cell invasion through the monolayer of peritoneal cells was inhibited. In addition, CNh1-transfected ovarian cancer cells showed suppressed anchorage-independent growth and invasiveness, the latter of which accompanied impaired cell motility. The concomitant CNh1 transfection into both peritoneal cells and ovarian cancer cells produced an additive inhibitory effect with respect to cancer cell invasion through the peritoneal cell monolayer. By in vivo experiments designed to treat nude mice that had been i.p. inoculated with ovarian cancer cells, we found that the i.p. injected CNh1 adenovirus successfully blocked cancer-induced morphologic changes in peritoneal cell surface and significantly prolonged the survival time of tumor-bearing mice. Moreover, CNh1 adenovirus could successfully enhance the therapeutic effect of an anticancer drug without increase in side effects. Conclusions: Thus, CNh1 gene therapy against peritoneal dissemination of ovarian cancer is bifunctionally effective (i.e., through inhibitory effects on the infected peritoneal cell layers that suppress cancer invasion and through direct antitumor effects against invasion and growth properties of cancer cells).
- Published
- 2006
- Full Text
- View/download PDF
47. In vivo establishment and characterization of a paclitaxel-resistant human ovarian cancer cell line showing enhanced growth properties and drug-resistance only in vivo
- Author
-
Kaoru Okugawa, Tomonori Ogura, Hitoo Nakano, Takanori Sonoda, Hiroaki Kobayashi, and Toshio Hirakawa
- Subjects
Cancer Research ,medicine.medical_specialty ,Paclitaxel ,medicine.medical_treatment ,Mice, Nude ,Ovary ,Drug resistance ,In Vitro Techniques ,Colony-Forming Units Assay ,Mice ,chemistry.chemical_compound ,In vivo ,Internal medicine ,Tumor Cells, Cultured ,medicine ,Animals ,Humans ,Neoplasm ,Neoplasm Invasiveness ,Neoplasm Metastasis ,Ovarian Neoplasms ,Mice, Inbred BALB C ,Chemotherapy ,business.industry ,General Medicine ,medicine.disease ,Antineoplastic Agents, Phytogenic ,In vitro ,Chromosome Banding ,Endocrinology ,medicine.anatomical_structure ,Oncology ,chemistry ,Drug Resistance, Neoplasm ,Cell culture ,Cancer research ,Female ,business ,Cell Division - Abstract
In order to establish a more faithful model of clinically recurrent ovarian cancer after paclitaxel-based chemotherapy, a paclitaxel-resistant human ovarian cancer cell line was established in vivo, and its biological profiles were compared with the conventional in vitro established drug-resistant cell line.An in vivo paclitaxel-resistant subline (OM1/Tvivo) was established from the parental human ovarian cancer cell line (OVMG1) by repeated paclitaxel administration into tumor-bearing mice. As a control, the in vivo drug-sensitive subline (OM1/Cvivo) was made in the same manner, without paclitaxel. An in vitro paclitaxel-resistant subline (OM1/Tvitro) was established by exposure to stepwise increased concentrations of the drug in a cell culture medium. Chromosomal analysis, evaluation of growth, invasiveness and metastasis, in vivo and in vitro drug sensitivity, and a pharmacokinetic study were performed.Both in vivo sublines confirmed their human origin by G-band chromosomal analysis and showed a similar cell growth rate in cell culture. As for in vivo tumor growth, OM1/Tvivo showed enhanced tumor growth property compared with OM1/Cvivo, while OM1/Tvitro lost tumorigenicity. Both OM1/Tvivo and OM1/Cvivo sublines as well as their parental OVMG1 could not form either invasive or metastatic lesions. Compared with the OM1/Cvivo subline, the OM1/Tvivo tumor showed stable drug-resistance and lower drug distribution after paclitaxel administration into mice, whereas cultured OM1/Tvivo cells lost both completely. On the other hand, an unreasonably higher level of drug-resistance and lower drug concentration was detected in vitro only in OM1/Tvitro cells after exposure to the drug in a culture medium.These results suggest that the in vivo established paclitaxel-resistant cell line, rather than the conventional in vitro established cell line, is a suitable and faithful model for clinically recurrent tumors showing transformed aggressiveness. The in vivo specific drug-resistant mechanism should involve an interaction between the tumor and host stromal tissue rather than only changes in cellular drug sensitivity. The present study is probably the first report of an in vivo established paclitaxel-resistant human ovarian cancer cell line, and the elucidation of such an in vivo drug-resistance mechanism may be clinically important in preventing or overcoming acquired drug-resistant ovarian cancers recurring after paclitaxel-based chemotherapy.
- Published
- 2004
- Full Text
- View/download PDF
48. [Case of obstructed hemivagina and ipsilateral renal anomaly (OHVIRA) syndrome]
- Author
-
Keiko, Horioka, Keiko, Kataoka, Hiroko, Ooishi, Ryousuke, Tsunematsu, Kaoru, Okugawa, Hiroaki, Kobayashi, and Kiyoko, Kato
- Subjects
Young Adult ,Treatment Outcome ,Pregnancy ,Vagina ,Humans ,Kidney Failure, Chronic ,Abnormalities, Multiple ,Female ,Syndrome ,Kidney ,Magnetic Resonance Imaging ,Ultrasonography - Abstract
We report the case of 23 year-old woman with OHVIRA syndrome (obstructed hemivagina and ipisilateral renal anomaly) discovered during management for right renal failure. Non-specific symptoms such as lower abdominal pain, dysmenorrhea, and genital bleeding sometimes occur with congenital uterine anomalies such as this. It is very difficult to diagnose OHVIRA syndrome accurately without ultrasound and magnetic resonance imaging, and patients can develop severe complications as a result of delays in diagnosis: endometriosis, pelvic adhesions, or infertility can occur through backflow of genital bleeding because of vaginal septum. In our patient we managed to avoid severe complications by surgically resecting the vaginal septum. She was treated within an appropriate time frame and without complications. Fortunately, after the surgery she managed to become pregnant in the left side of the uterus.
- Published
- 2014
49. Loss of motility-related protein 1 (MRP1/CD9) and integrin ?3 expression in endometrial cancers
- Author
-
Yoshihiko Maehara, Shingo Miyamoto, Akiko Maruyama, Hideo Baba, Kohei Akazawa, Eisuke Mekada, and Kaoru Okugawa
- Subjects
Cancer Research ,Pathology ,medicine.medical_specialty ,Stromal cell ,biology ,business.industry ,Endometrial cancer ,Integrin ,Cancer ,medicine.disease ,Endometrium ,Metastasis ,medicine.anatomical_structure ,Oncology ,embryonic structures ,Cancer cell ,medicine ,Cancer research ,biology.protein ,Adenocarcinoma ,business - Abstract
BACKGROUND MRP1/CD9 and integrin α3 have played crucial roles in cell adhesion, motility, and signaling events. The loss of MRP1/CD9 and integrin α3 has been involved in tumor growth and metastasis of cancer cells. The aim of the current study was to clarify the clinical significance of MRP1/CD9 and integrin α3 in endometrial cancer. METHODS The expression of MRP1/CD9 and integrin α3 from the same tissue sample were examined immunohistochemically in 15 patients with normal endometrium and in 56 patients with uterine endometrioid adenocarcinoma. Disease-free survival curves were estimated using the Kaplan–Meier method and analyzed by the log-rank test between the positive and reduced expression statuses of both MRP1/CD9 and integrin α3. These expressions and clinicopathologic variables were analyzed univariately and multivariately. RESULTS In normal endometrium, MRP/CD9 was expressed at the cell membrane of cell contact sites, and the expression of integrin α3 was detected also at the cell membrane of cell contact sites and at borders of stromal tissues. In patients with endometrioid adenocarcinoma, 17 cases showed reduced expression of MRP1/CD9, and 20 cases had reduced expression of integrin α3. Fourteen cases indicated a reduced expression of both MRP1/CD9 and integrin α3. Each reduced expression of MRP1/CD9 or integrin α3 was significantly correlated with histologic grade and metastasis. Multivariate analysis using the Cox regression model disclosed that age at surgery, metastasis, and expression status of MRP1/CD9 were significant prognostic factors for disease-free survival. CONCLUSIONS These findings suggested that the analysis for the expression statuses of MRP1/CD9 and integrin α3 may provide important information on the clinical behavior of endometrial cancer. Cancer 2001;92:542–8. © 2001 American Cancer Society.
- Published
- 2001
- Full Text
- View/download PDF
50. [III. Radial trachelectomy with invasiveness uterine cervical cancer in young women]
- Author
-
Kaoru, Okugawa and Hiroaki, Kobayashi
- Subjects
Adult ,Young Adult ,Fertility ,Gynecologic Surgical Procedures ,Humans ,Uterine Cervical Neoplasms ,Female ,Neoplasm Invasiveness ,Neoplasm Staging - Published
- 2013
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.