20 results on '"Gotlieb W"'
Search Results
2. Clinical and economic impact following the introduction of robotics for endometrial cancer staging
- Author
-
Vaknin, Z., primary, Lau, S., additional, Agnihotram, R., additional, Drummond, N., additional, Halliday, D., additional, Gotlieb, R., additional, How, J., additional, Franco, E., additional, and Gotlieb, W., additional
- Published
- 2011
- Full Text
- View/download PDF
3. Benign glandular inclusions in pelvic sentinel lymph nodes may cause false-positive histological diagnosis
- Author
-
FERENCZY, A, primary, GOTLIEB, W, additional, and LAU, S, additional
- Published
- 2007
- Full Text
- View/download PDF
4. Comparing indocyanine green, technetium, and blue dye for sentinel lymph node mapping in endometrial cancer.
- Author
-
How, J., Gotlieb, W. H., Press, J. Z., Abitbol, J., Pelmus, M., Ferenczy, A., Probst, S., Gotlieb, R., Brin, S., and Lau, S.
- Subjects
- *
INDOCYANINE green , *TECHNETIUM , *SENTINEL lymph nodes , *ENDOMETRIAL cancer , *ANAPHYLAXIS , *THERAPEUTICS - Abstract
Background and aims With the debate over extent of lymphadenectomy in endometrial cancer, sentinel lymph node (SLN) mapping may provide a focused approach to evaluate the most relevant lymph nodes (LN) while minimizing the complications. We evaluated SLN mapping using filtered technetium99, indocyanine green (ICG), and blue dye. Methods Prospective evaluation of 100 patients who underwent SLN mapping by using submucosal and deep stromal cervical injections of technetium99, ICG, and blue dye as part of the staging for endometrial cancer. Results 286 SLNs were mapped (2.9 per patient) in 92% of patients. The bilateral detection rate was 76%. ICG had a significantly higher SLN detection rate than blue dye in both overall (87% vs 71%, respectively; p = 0.005) and bilateral (65% vs 43%, respectively; p = 0.002) detection, but similar SLN detection rates compared to technetium99 in both overall (87% vs 88%, respectively; p = 0.83) and bilateral (65% vs 71%, respectively; p = 0.36) detection. In eight cases, the SLN was in the para-aortic area and in 14 cases in the pre-sacral, hypogastric vein, or parametrial area. In nine cases, the SLN was positive for metastasis, and in seven cases the SLN was the only positive node. One SLN was falsely negative. No complications or anaphylactic reactions occurred. Conclusion Intra-operative SLN mapping using cervical injection is feasible in patients with endometrial cancer and yields adequate detection rates. It allows mapping of SLNs in areas (pre-sacral, hypogastric vein, parametrial) not routinely sampled. Given the poorer performance of blue dye, surgeons may omit its use if a combination of ICG and technetium99 is used. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
5. Cystectomy for immature teratoma of the ovary
- Author
-
BEINER, M, primary, GOTLIEB, W, additional, KORACH, Y, additional, SHRIM, A, additional, STOCKHEIM, D, additional, SEGAL, Y, additional, FRIDMAN, E, additional, and BENBARUCH, G, additional
- Published
- 2004
- Full Text
- View/download PDF
6. Variation in practice in endometrial cancer and potential for improved care and equity through molecular classification.
- Author
-
Jamieson A, Huvila J, Thompson EF, Leung S, Chiu D, Lum A, McConechy M, Grondin K, Aguirre-Hernandez R, Salvador S, Kean S, Samouelian V, Gougeon F, Azordegan N, Lytwyn A, Parra-Herran C, Offman S, Gotlieb W, Irving J, Kinloch M, Helpman L, Scott SA, Vicus D, Plante M, Huntsman DG, Gilks CB, Talhouk A, and McAlpine JN
- Subjects
- Chemotherapy, Adjuvant, Combined Modality Therapy, Female, Humans, Lymph Node Excision, Retrospective Studies, Endometrial Neoplasms genetics, Endometrial Neoplasms therapy
- Abstract
Objectives: We measured the variation in practice across all aspects of endometrial cancer (EC) management and assessed the potential impact of implementation of molecular classification., Methods: Centers from across Canada provided representative tumor samples and clinical data, including preoperative workup, operative management, hereditary cancer program (HCP) referrals, adjuvant therapy, surveillance and outcomes, for all EC patients diagnosed in 2016. Tumors were classified into the four ProMisE molecular subtypes., Results: A total of 1336 fully evaluable EC patients were identified from 10 tertiary cancer centers (TC; n = 1022) and 19 community centers (CC; n = 314). Variation of surgical practice across TCs was profound (14-100%) for lymphadenectomy (LND) (mean 57% Gr1/2, 82% Gr3) and omental sampling (20% Gr1/2, 79% Gr3). Preoperative CT scans were inconsistently obtained (mean 32% Gr1/2, 51% Gr3) and use of adjuvant chemo or chemoRT in high risk EC ranged from 0-55% and 64-100%, respectively. Molecular subtyping was performed retrospectively and identified 6% POLEmut, 28% MMRd, 48% NSMP and 18% p53abn ECs, and was significantly associated with survival. Within patients retrospectively diagnosed with MMRd EC only 22% had been referred to HCP. Of patients with p53abn EC, LND and omental sampling was not performed in 21% and 23% respectively, and 41% received no chemotherapy. Comparison of management in 2016 with current 2020 ESGO/ESTRO/ESP guidelines identified at least 26 and 95 patients that would have been directed to less or more adjuvant therapy, respectively (10% of cohort)., Conclusion: Molecular classification has the potential to mitigate the profound variation in practice demonstrated in current EC care, enabling reproducible risk assessment, guiding treatment and reducing health care disparities., Competing Interests: Declaration of Competing Interest Dr. M McConechy, and R Aguirre- Hernandez are employees, and Dr. Huntsman is a founder and Chief Medical Officer of Canexia Health., (Crown Copyright © 2022. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
7. Pathologic and clinical tumor size discordance in early-stage cervical cancer: Does it matter?
- Author
-
Vetter MH, Smrz S, Gehrig PA, Peng K, Matsuo K, Davidson BA, Cisa MP, Lees BF, Brunette LL, Tucker K, Stuart Staley A, Gotlieb WH, Holloway RW, Essel KG, Holman LL, Goldfeld E, Olawaiye A, Rose S, Uppal S, and Bixel K
- Subjects
- Aged, Chemotherapy, Adjuvant statistics & numerical data, Conization statistics & numerical data, Female, Humans, Hysterectomy statistics & numerical data, Lymph Node Excision statistics & numerical data, Middle Aged, Neoplasm Invasiveness pathology, Retrospective Studies, Uterine Cervical Neoplasms mortality, Uterine Cervical Neoplasms surgery, Neoplasm Staging methods, Uterine Cervical Neoplasms pathology
- Abstract
Objective: The objective of this study was to assess the rate of discordance between clinical and pathologic tumor size for women with stage IB1 cervical cancer (FIGO 2009 criteria), assess risk factors for discordance, and determine the impact of discordance on oncologic outcomes., Methods: This was a secondary analysis of a prior multi-institutional retrospective review of patients diagnosed with stage IB1 (FIGO 2009 staging) cervical cancer undergoing radical hysterectomy between 2010 and 2017. Demographic, clinicopathologic, and oncologic data were collected. Pathologic upstaging was defined as having a preoperative diagnosis of stage IB1 cervical cancer with pathology demonstrating a tumor size >4 cm. Demographic and clinicopathologic data was compared using chi-square, fisher exact or 2-sided t-test. Survival was estimated using the Kaplan-Meier method., Results: Of the 630 patients, 77 (12%) were upstaged. Patients who were upstaged had lower rates of preoperative conization (p < .001) or preoperative tumor sizes ≤2 cm (p < .001). Upstaged patients had increased odds of deep stromal invasion, lymphovascular space invasion, positive margins and positive lymph nodes. Almost 88% of upstaged patients received adjuvant therapy compared to 29% of patients with tumors ≤4 cm (odds 18.49, 95% CI 8.99-37.94). Finally, pathologic upstaging was associated with an increased hazard of recurrence (hazard ratio [HR] 1.95, 95% CI 1.03-3.67) and all-cause death (HR 2.31, 95% CI 1.04-5.11)., Conclusions: Pathologic upstaging in stage IB1 cervical cancer is relatively common. Upstaging is associated with an 18-fold increased risk of receipt of adjuvant therapy. Patients undergoing preoperative conization and those with tumors <2 cm had lower risks of upstaging. Improvement in preoperative assessment of tumor size may better inform primary treatment decisions., Competing Interests: Declaration of Competing Interest The authors of this manuscript have no conflicts of interest to disclose., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
8. Clinicopathological features of women with epithelial ovarian cancer and double heterozygosity for BRCA1 and BRCA2: A systematic review and case report analysis.
- Author
-
Le Page C, Rahimi K, Rodrigues M, Heinzelmann-Schwarz V, Recio N, Tommasi S, Bataillon G, Portelance L, Golmard L, Meunier L, Tonin PN, Gotlieb W, Yasmeen A, Ray-Coquard I, Labidi-Galy SI, Provencher D, and Mes-Masson AM
- Subjects
- Adult, Aged, Carcinoma, Ovarian Epithelial pathology, Female, Genes, BRCA1, Genes, BRCA2, Germ-Line Mutation, Heterozygote, Humans, Middle Aged, Ovarian Neoplasms pathology, Receptors, Progesterone biosynthesis, Receptors, Progesterone genetics, BRCA1 Protein genetics, BRCA2 Protein genetics, Carcinoma, Ovarian Epithelial genetics, Ovarian Neoplasms genetics
- Abstract
Background: Carriers of pathogenic variants in both BRCA1 and BRCA2 genes as a double mutation (BRCA1/2 DM) have been rarely reported in women with epithelial ovarian cancer (EOC)., Methods: We reviewed the English literature and interrogated three repositories reporting EOC patients carrying BRCA1/2 DM. The clinicopathological parameters of 36 EOC patients carrying germline BRCA1/2 DM were compared to high-grade serous EOC women of the COEUR cohort with known germline BRCA1/BRCA2 mutation carrier status (n = 376 non-carriers, n = 65 BRCA1 and n = 38 BRCA2). Clinicopathological parameters evaluated were age at diagnosis, stage of disease, loss of heterozygosity, type of mutation, immunohistochemistry profile, progression occurrence and survival., Results: Median age at diagnosis of BRCA1/2 DM patients was 51.9 years, similar to BRCA1 mutation carriers (49.7 years, p = .58) and younger than BRCA2 mutation carriers (58.1 years, p = .02). Most patients were diagnosed at advanced stage (III-IV; 82%) and were carriers of founder/frequent mutations (69%). Tissue immunostainings revealed no progesterone receptor expression and low intraepithelial inflammation. The 5-year survival rate (60%) was significantly lower than that of BRCA2 mutation carriers (76%, p = .03) but not of BRCA1 mutation carriers (51%, p = .37)., Conclusions: Our data suggests some co-dominant effect of both mutations but the outcome of these patients more closely resembled that of BRCA1 mutation carriers with poor prognosis factors., (Copyright © 2019. Published by Elsevier Inc.)
- Published
- 2020
- Full Text
- View/download PDF
9. Validation of a new HPV self-sampling device for cervical cancer screening: The Cervical and Self-Sample In Screening (CASSIS) study.
- Author
-
El-Zein M, Bouten S, Louvanto K, Gilbert L, Gotlieb W, Hemmings R, Behr MA, and Franco EL
- Subjects
- Adult, Aged, Female, Humans, Middle Aged, Papillomavirus Infections diagnosis, Papillomavirus Infections pathology, Self Care methods, Self Care statistics & numerical data, Specimen Handling instrumentation, Specimen Handling methods, Specimen Handling statistics & numerical data, Uterine Cervical Neoplasms pathology, Uterine Cervical Neoplasms virology, Vaginal Smears methods, Vaginal Smears statistics & numerical data, Young Adult, Uterine Cervical Dysplasia pathology, Uterine Cervical Dysplasia virology, Papillomaviridae isolation & purification, Papillomavirus Infections virology, Self Care instrumentation, Uterine Cervical Neoplasms diagnosis, Vaginal Smears instrumentation, Uterine Cervical Dysplasia diagnosis
- Abstract
Objective: We compared the self-sampling performance of the newly designed HerSwab™ device with a physician-collected cervical sample and another self-sample using the cobas® PCR Female swab for the detection of cervical intraepithelial neoplasia (CIN) and cancer., Methods: Women referred for colposcopy at McGill University affiliated hospital clinics collected two consecutive self-samples, one with HerSwab™ and one with cobas® swab, after receiving instructions. The order of sampling was randomized. The colposcopist then collected a cervical sample and conducted a colposcopic examination. Samples were tested for human papillomavirus (HPV) DNA. Sensitivity and specificity to detect CIN2+ and respective 95% confidence intervals (CI) were calculated to compare sampling approaches. The HPV testing agreement between samples was measured using the Kappa statistic., Results: Of 1217 women enrolled, 1076 had complete results for HPV and cytology; 148 (13.8%) had CIN1, 147 (13.7%) had CIN2/3, and 5 (0.5%) had cancer. There was very good agreement between methods for HPV detection (HerSwab™ versus physician: kappa=0.84; cobas® swabs versus physician: kappa=0.81; HerSwab™ versus cobas® swabs: kappa=0.87). The sensitivity of HPV detection for CIN2+ was 87.6% (95%CI: 79.8-93.2) with self-sampling using HerSwab™, 88.6% (95%CI: 80.9-94.0) with self-sampling using the cobas® swab, and 92.4% (95%CI: 85.5-96.7) with physician sampling. Corresponding estimates of specificity were 58.1% (95%CI: 54.1-62.1), 55.0% (95%CI: 50.9-59.0) and 58.7% (95%CI: 54.6-62.6). Cytology (ASC-US or more severe) done on the physician-collected specimen was 80.2% (95%CI: 70.8-87.6) sensitive and 61.4% (95%CI: 57.2-65.5) specific for CIN2+., Conclusions: The HerSwab™ had good agreement with physician sampling in detecting HPV, and adequate performance in detecting high-grade lesions among women referred to colposcopy for abnormal cytology., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
10. Unexpected locations of sentinel lymph nodes in endometrial cancer.
- Author
-
How J, Boldeanu I, Lau S, Salvador S, How E, Gotlieb R, Abitbol J, Halder A, Amajoud Z, Probst S, Brin S, and Gotlieb W
- Subjects
- Adult, Aged, Endometrial Neoplasms diagnosis, Female, Humans, Lymph Node Excision statistics & numerical data, Middle Aged, Prospective Studies, Endometrial Neoplasms pathology, Sentinel Lymph Node pathology, Sentinel Lymph Node Biopsy methods
- Abstract
Introduction: To evaluate the anatomical location of sentinel lymph nodes (SLN) following intra-operative cervical injection in endometrial cancer., Methods: All consecutive patients with endometrial cancer undergoing sentinel lymph node mapping were included in this prospective study following intra-operative cervical injection of tracers. Areas of SLN detection distribution were mapped., Results: Among 436 patients undergoing SLN mapping, there were 1095 SLNs removed, and 7.9% of these SLNs found in 13.1% of patients, were detected in areas not routinely harvested during a standard lymph node dissection. These included the internal iliac vein, parametrial, and pre-sacral areas. The SLN was the only positive node in 46.1% (15/36) of cases with successful mapping and completion lymphadenectomy, including 3 cases where the sentinel node in the atypical location was the only node with metastatic disease., Conclusion: SLN mapping using intra-operative cervical injection is capable to map out areas not typically included in a standard lymphadenectomy. The sentinel node is the most relevant lymph node to analyze and may enable to discover metastatic disease in unusual areas., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2017
- Full Text
- View/download PDF
11. Impact of sentinel lymph node mapping on recurrence patterns in endometrial cancer.
- Author
-
How J, Gauthier C, Abitbol J, Lau S, Salvador S, Gotlieb R, Pelmus M, Ferenczy A, Probst S, Brin S, Fatnassi A, and Gotlieb W
- Subjects
- Aged, Cohort Studies, Endometrial Neoplasms diagnosis, Female, Humans, Middle Aged, Retrospective Studies, Sentinel Lymph Node Biopsy, Endometrial Neoplasms pathology, Neoplasm Recurrence, Local pathology, Sentinel Lymph Node pathology
- Abstract
Background: Sentinel lymph node (SLN) mapping has emerged as a promising solution to the ongoing debate regarding lymphadenectomy in the initial surgical management of endometrial cancer. Currently, little is known about its possible impact on location of disease recurrence compared to systematic lymphadenectomy., Methods: In this retrospective study, 472 consecutive patients with endometrial cancer who underwent either SLN mapping (SLN cohort, n=275) or systematic lymphadenectomy (LND cohort, n=197) from sequential, non-overlapping historical time points were compared. Clinical characteristics were extracted from a prospectively gathered electronic database. Both overall and pelvic sidewall recurrence free survival (RFS) were evaluated at 48-month post-operative follow-up., Results: No significant difference in overall RFS could be identified between the cohorts at 48months (HR 0.74, 95% CI 0.43-1.28, p=0.29). However, the SLN cohort had improved pelvic sidewall RFS compared to the LND cohort (HR 0.32, 95% CI 0.14-0.74, p=0.007). The pelvic sidewall recurrences accounted for 30% of recurrences in the SLN cohort (8 out of 26 recurrences) compared to 71.4% in the LND cohort (20 out of 28 recurrences)., Conclusions: SLN mapping may enable more efficient detection of the LNs at greatest risk of metastasis and help to guide adjuvant therapy, which in turn seems to decrease the risk of pelvic sidewall recurrences., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2017
- Full Text
- View/download PDF
12. Sentinel lymph node procedure in endometrial cancer: A systematic review and proposal for standardization of future research.
- Author
-
Cormier B, Rozenholc AT, Gotlieb W, Plante M, and Giede C
- Subjects
- Female, Humans, Lymphatic Metastasis, Endometrial Neoplasms pathology, Lymph Nodes pathology, Sentinel Lymph Node Biopsy methods, Sentinel Lymph Node Biopsy standards
- Abstract
Objectives: Sentinel lymph node (SLN) procedure could be an attractive solution to the debate on lymphadenectomy in endometrial cancer; however challenges to interpreting the literature include marked heterogeneity across studies, a wide variety of injection techniques and a lack of uniformly accepted definitions for important outcomes. We aim to critically appraise the published literature and streamline terminology and methodology for future studies in this field., Methods: We conducted a PubMed search and included all original research of endometrial cancer patients having undergone SLN procedure with an n>30. Data collected included injection technique, unilateral, bilateral, and para-aortic detection rates, and ultrastaging results. When different definitions were used for reporting outcomes, we recalculated the original study results according to our proposed definitions. Data was analyzed using descriptive statistics., Results: Seventeen studies met our inclusion criteria. Injection sites were categorized into cervical versus corporeal. Overall detection rates ranged from 60 to 100%; studies with n>100 all had overall detection rates of >80%. Bilateral detection rates were higher with a combination of two injection agents. Para-aortic mapping was most frequent after corporeal injection techniques (39%), and was higher after deep vs. standard cervical injection (17% vs. 2%). The proportion of metastatic lymph nodes diagnosed through ultrastaging was high (around 40%) and ultrastaging of SLN upstaged approximately 5% of patients. Retrospectively applying a surgical algorithm revealed a sensitivity of 95%, a negative predictive value of 99%, and a false negative rate of 5% (with only 9 false negative cases remaining in total)., Conclusion: Results of SLN research for endometrial cancer are promising. We believe that in future studies, uniform reporting is needed to improve our understanding of the safety and feasibility of SLN in EC. We propose 2 strategies: a checklist of elements to include in future reports and the standardization of key definitions., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
13. Accuracy of sentinel lymph node detection following intra-operative cervical injection for endometrial cancer: a prospective study.
- Author
-
How J, Lau S, Press J, Ferenczy A, Pelmus M, Stern J, Probst S, Brin S, Drummond N, and Gotlieb W
- Subjects
- Adult, Aged, Aged, 80 and over, Endometrial Neoplasms surgery, False Negative Reactions, Female, Humans, Hysterectomy, Injections, Lymph Nodes diagnostic imaging, Lymphatic Metastasis, Middle Aged, Neoplasm Staging, Pelvis, Predictive Value of Tests, Prospective Studies, Radionuclide Imaging, Robotics, Sensitivity and Specificity, Coloring Agents administration & dosage, Endometrial Neoplasms pathology, Lymph Node Excision methods, Lymph Nodes pathology, Radiopharmaceuticals administration & dosage, Rosaniline Dyes administration & dosage, Technetium Tc 99m Sulfur Colloid administration & dosage
- Abstract
Objective: The objective of this study is to evaluate the detection rate and diagnostic accuracy of sentinel lymph node (SLN) mapping using intra-operative cervical injection of filtered 99mTc-sulfur colloid (99mTc-SC) and patent blue in patients with endometrial cancer., Methods: Prospective evaluation of the first 100 endometrial cancer patients undergoing SLN mapping using cervical injection of patent blue combined with filtered 99mTc-SC in the operating room was done. Patients underwent robotic-assisted lymphatic mapping with frozen section, hysterectomy, BSO, and completion bilateral lymphadenectomy (including para-aortic nodes in grade 2 and 3 tumors)., Results: At least one SLN was detected in 92% of patients; in 66 of these (72%) bilateral SLN were detected, and in 15 cases the SLN was in the para-aortic area. Eleven percent of all patients had lymph node metastases, and 4 of which had pre-operative grade 1 tumor. The SLN was the only positive node in 44% of the cases with positive nodes. Sensitivity was 89% with 1 false negative result, yielding a negative predictive value of 99% (95% CI 93-100). Specificity was 100% (95% CI 94-100), and positive predictive value was 100% (95% CI 60-100). No complications or anaphylactic reactions were noted., Conclusions: Intra-operative SLN biopsy, using cervical injection of patent blue and filtered 99mTc-SC in endometrial cancer patients is feasible and yields adequate detection rates., (Copyright © 2012 Elsevier Inc. All rights reserved.)
- Published
- 2012
- Full Text
- View/download PDF
14. Topoisomerase II immunostaining as a prognostic marker for survival in ovarian cancer.
- Author
-
Gotlieb WH, Goldberg I, Weisz B, Davidson B, Novikov I, Kopolovic J, and Ben-Baruch G
- Subjects
- Female, Humans, Immunoenzyme Techniques, Ki-67 Antigen metabolism, Ovarian Neoplasms mortality, Ovarian Neoplasms pathology, Prognosis, Survival Rate, Biomarkers, Tumor metabolism, DNA Topoisomerases, Type II metabolism, Ovarian Neoplasms metabolism
- Abstract
Objective: This study aimed to evaluate topoisomerase II compared to Ki-67 expression as a marker for tumor behavior and for prognosis of patients with ovarian cancer., Methods: In order to screen for potential prognostic markers, two groups of patients with advanced stage (FIGO stages III and IV) epithelial ovarian carcinoma were selected based on differences in survival (mean survival, 11 years versus 2 years). Pathology slides were reviewed, and immunohistochemistry using antibodies to topoisomerase II and Ki-67 was performed on the original cell blocks. No patients were lost to follow-up., Results: Detectable expression of topoisomerase II was present in 70.0 +/- 30.3% of cells in patients with rapidly progressing disease, compared to only 12.3 +/- 12.4% of cells in long-term survivors (P = 0.0001). Ki-67 expression was also more frequent in short-term survivors compared to long-term survivors, but the difference was less prominent than with topoisomerase II (P = 0.01). Specificity and sensitivity as prognostic factors reached 88.2 and 93.8% for topoisomerase II, compared to 55.6 and 88.2% for Ki-67., Conclusions: Topoisomerase II expression as detected by immunohistochemistry in tumor samples emerged as a promising clinically relevant biomarker for survival in advanced epithelial ovarian cancer., (Copyright 2001 Academic Press.)
- Published
- 2001
- Full Text
- View/download PDF
15. Caveolin-1 expression in advanced-stage ovarian carcinoma--a clinicopathologic study.
- Author
-
Davidson B, Nesland JM, Goldberg I, Kopolovic J, Gotlieb WH, Bryne M, Ben-Baruch G, Berner A, and Reich R
- Subjects
- Adult, Aged, Aged, 80 and over, Biomarkers, Tumor biosynthesis, Caveolin 1, Female, Humans, Immunohistochemistry, Middle Aged, Neoplasm Staging, Prognosis, Caveolins biosynthesis, Ovarian Neoplasms metabolism, Ovarian Neoplasms pathology
- Abstract
Objective: The aim of this study was to analyze the correlation among the expression of caveolin-1, the protein constituent of caveolae, and disease outcome in advanced-stage ovarian carcinomas., Methods: Sections from 76 primary ovarian carcinomas and metastatic lesions from 45 patients diagnosed with advanced-stage ovarian carcinoma (FIGO stages III-IV) were evaluated for caveolin-1 expression using immunohistochemistry. Patients were divided into long-term survivors and short-term survivors based on disease outcome. Twenty nonneoplastic fallopian tubes and ovaries were additionally studied., Results: The mean follow-up period was 70 months. The mean values for disease-free survival and overall survival were 109 and 125 months for long-term survivors, compared to 3 and 21 months for short-term survivors, respectively. Caveolin-1 expression was localized to the cell membrane in 24/76 (32%) specimens and was detected in the cytoplasm in 52/76 (68%) cases. Both patterns were more often detected in metastases, when compared with primary tumors. In addition, membrane immunoreactivity was more often seen in tumor of short-term survivors. These differences did not reach statistical significance (P > 0.05). Combined membrane and cytoplasmic immunoreactivity was seen in 17/20 (85%) nonneoplastic lesions. Despite its role in tyrosine-kinase-mediated signal transduction in vitro studies, caveolin-1 expression in carcinomas showed no association with the protein expression of c-erbB-2 and epidermal growth factor receptor, evaluated in a previous study of this patient cohort., Conclusions: This study provides the first in vivo evidence of caveolin-1 membrane expression in human malignancies. Caveolin-1 is often expressed in advanced-stage ovarian carcinoma, but does not appear to be a powerful predictor of disease outcome in these tumors. The reduced expression level in carcinomas compared to nonneoplastic epithelium may point to a role for caveolin-1 as a tumor suppressor gene., (Copyright 2001 Academic Press.)
- Published
- 2001
- Full Text
- View/download PDF
16. E-Cadherin complex protein expression and survival in ovarian carcinoma.
- Author
-
Davidson B, Gotlieb WH, Ben-Baruch G, Nesland JM, Bryne M, Goldberg I, Kopolovic J, and Berner A
- Subjects
- Adult, Aged, Aged, 80 and over, Carcinoma pathology, Cell Membrane metabolism, Cytoplasm metabolism, Disease-Free Survival, Epithelial Cells pathology, ErbB Receptors biosynthesis, Female, Follow-Up Studies, Humans, Immunohistochemistry, Middle Aged, Neoplasm Staging, Ovarian Neoplasms pathology, Receptor, ErbB-2 biosynthesis, Survival Analysis, Biomarkers, Tumor biosynthesis, Cadherins biosynthesis, Carcinoma metabolism, Ovarian Neoplasms metabolism
- Abstract
Objective: The aim of this study was to analyze the correlation between expression of E-cadherin complex proteins, epidermal growth factor receptor (EGFR), and c-erbB-2 and disease outcome in advanced-stage ovarian carcinomas., Methods: Sections from 75 primary ovarian carcinomas (=37) and metastatic lesions (=38) from 45 patients diagnosed with advanced-stage ovarian carcinoma (FIGO stage III-IV) were immunostained and evaluated for staining pattern, extent, and intensity. Patients were divided in two groups based on disease outcome. Long-term survivors (21 patients) and short-term survivors (24 patients) were defined using a double cutoff of 36 months for disease-free survival (DFS) and 60 months for overall survival (OS). Mean follow-up period was 70 months. The mean values for DFS and OS were 109 and 125 months for long-term survivors, as compared to 3 and 21 months for short-term survivors, respectively., Results: Comparison of all primary and metastatic lesions showed upregulation of gamma-catenin protein expression in the latter (P = 0.05). When segregated according to disease outcome, the expression of all studied proteins, with the exception of EGFR, was more diffuse in tumors of short-term survivors. The presence of cytoplasmic staining for c-erbB-2 was associated with poor survival in the entire cohort (P = 0.007), as well as in primary tumors alone (P = 0.003), in survival analysis. Similar results were seen in the evaluation of primary tumors for gamma-catenin (P = 0.002)., Conclusions: gamma-Catenin, and possibly c-erbB-2, are valid markers of poor survival in advanced-stage ovarian carcinoma., (Copyright 2000 Academic Press.)
- Published
- 2000
- Full Text
- View/download PDF
17. Expression of carbohydrate antigens in advanced-stage ovarian carcinomas and their metastases-A clinicopathologic study.
- Author
-
Davidson B, Gotlieb WH, Ben-Baruch G, Kopolovic J, Goldberg I, Nesland JM, Berner A, Bjåmer A, and Bryne M
- Subjects
- Adult, Aged, Aged, 80 and over, Carcinoma mortality, Carcinoma pathology, Disease-Free Survival, Female, Humans, Immunoenzyme Techniques, Middle Aged, Neoplasm Metastasis, Ovarian Neoplasms mortality, Ovarian Neoplasms pathology, Predictive Value of Tests, Prognosis, Retrospective Studies, Survival Analysis, Up-Regulation, Antigens, Tumor-Associated, Carbohydrate biosynthesis, Carcinoma metabolism, Ovarian Neoplasms metabolism
- Abstract
Objective: Up-regulated expression or loss of expression of various carbohydrate antigens on the surface of cancer cells has been associated with a metastatic phenotype and poor survival in epithelial malignancies of different origins. The object of this study was to investigate the expression of carbohydrate antigens in two groups of patients diagnosed with advanced-stage ovarian carcinoma-one with an extremely favorable outcome and the other with a uniformly poor survival., Methods: Sections from 76 paraffin-embedded blocks (primary ovarian carcinomas and metastatic lesions) from 45 patients diagnosed with advanced-stage ovarian carcinomas (FIGO stages III-IV) were immunohistochemically stained using five monoclonal antibodies for Lewis(y) (Le(y))(two antibodies), Sialyl Lewis(x) (Slex), Tn, and Sialyl Tn (STn) antigens. Patients were divided in two groups based on outcome. Long-term survivors (21 patients) and short-term survivors (24 patients) were defined using a double cut-off of 36 months for disease-free survival (DFS) and 60 months for overall survival (OS). Staining results for primary tumors and metastases were analyzed separately., Results: Mean follow-up period was 70 months. The mean values for DFS and OS were 109 and 125 months for long-term survivors and 3 and 25 months for short-term survivors. Staining for all four antigens was seen in the majority of cases (range = 72-96%) and tended to be comparable in primary tumors and their metastases. However, absence of immunoreactivity for STn was seen in 9/38 (24%) metastatic lesions and only 1/38 (3%) primary tumors. This finding did not reach statistical significance (P > 0.05). A combined pattern of membranous and cytoplasmic staining was predominant in the majority of cases. Enhanced staining for Le(y) and STn was detected in the invasive front of some tumors, while Slex and Tn immunoreactivity did not relate to cell location. Primary tumors and metastatic lesions of long-term survivors displayed immunoreactivity patterns that were comparable to those of short-term survivors. In the evaluation of survival curves, more diffuse staining for Slex showed marginal correlation with poor survival (P = 0.05), while a trend toward poorer survival was seen in tumors that were more extensively stained for Le(y) and Tn (P > 0.05)., Conclusions: Le(y), Slex, STn, and Tn antigens are widely expressed in primary ovarian carcinomas and their metastases. Altered expression of Sialyl Tn is observed with tumor progression in a fraction of ovarian carcinomas. Expression of membrane carbohydrate residues is prevalent in tumors of both long-term and short-term survivors and does not appear to be a strong predictor of disease outcome. However, larger studies are needed to further elucidate the role of these molecules in ovarian carcinogenesis., (Copyright 2000 Academic Press.)
- Published
- 2000
- Full Text
- View/download PDF
18. MMP-2 and TIMP-2 expression correlates with poor prognosis in cervical carcinoma--a clinicopathologic study using immunohistochemistry and mRNA in situ hybridization.
- Author
-
Davidson B, Goldberg I, Kopolovic J, Lerner-Geva L, Gotlieb WH, Ben-Baruch G, and Reich R
- Subjects
- Adult, Carcinoma, Squamous Cell chemistry, Female, Gelatinases analysis, Gelatinases genetics, Humans, Immunohistochemistry, In Situ Hybridization, Matrix Metalloproteinase 2, Matrix Metalloproteinases, Membrane-Associated, Metalloendopeptidases analysis, Metalloendopeptidases genetics, Middle Aged, Prognosis, RNA, Messenger analysis, Tissue Inhibitor of Metalloproteinase-2 analysis, Tissue Inhibitor of Metalloproteinase-2 genetics, Uterine Cervical Neoplasms chemistry, Uterine Cervical Dysplasia chemistry, Carcinoma, Squamous Cell genetics, Gelatinases biosynthesis, Gene Expression Regulation, Neoplastic genetics, Metalloendopeptidases biosynthesis, Tissue Inhibitor of Metalloproteinase-2 biosynthesis, Uterine Cervical Neoplasms genetics, Uterine Cervical Dysplasia genetics
- Abstract
Objective: The spread of malignant neoplasms is closely associated with matrix and basement membrane degradation, mediated by various classes of proteolytic enzymes. Matrix metalloproteinases (MMP) appear to have a key role in the sequence of events that lead to local invasion and metastasis. The present study evaluated the role of matrix metalloproteinase-2 (MMP-2), tissue inhibitor of metalloproteinases-2 (TIMP-2), and membrane-type metalloproteinase (MT1-MMP) in cervical neoplasia., Methods: We have analyzed 49 uterine cervical squamous cell carcinomas, 10 cases of high-grade cervical intraepithelial neoplasia (CIN II-III), and 10 control cervices for the presence of MMP-2, TIMP-2, and MT1-MMP using in situ hybridization. MMP-2 protein expression was evaluated using immunohistochemistry. Results were analyzed for possible correlation with disease outcome., Results: MMP-2, TIMP-2, and MT1-MMP mRNA were localized to both stromal and tumor cells. However, an intense signal for MMP-2 was detected almost exclusively in tumor cells and was uniformly absent from CIN lesions and control cervices. Conversely, intense signals for TIMP-2 and MT1-MMP were detected in both stromal and tumor cells of invasive carcinomas, more often for the former. As with MMP-2, they were absent from CIN lesions. MMP-2 protein expression was enhanced in tumor cells compared to CIN cases and controls, significantly compared to the latter (P = 0.01). The presence of both MMP-2 and TIMP-2 mRNA in tumor cells correlated with advanced stage (P = 0.003 for MMP-2, P = 0.002 for TIMP-2) and with poor survival (P = 0.003 for MMP-2, P = 0.002 for TIMP-2) in univariate analysis. In addition, their presence in tumor cells intercorrelated (P = 0.002). In multivariate survival analysis, MMP-2 presence retained its association with survival (P = 0.004), in addition to patient age (P = 0.027) and advanced stage (P = 0. 0002)., Conclusions: Both MMP-2 and TIMP-2 have a key role in extracellular matrix invasion in cervical carcinoma, largely through their elaboration by tumor cells. The presence of mRNA for both proteins is interrelated and is associated with poor survival., (Copyright 1999 Academic Press.)
- Published
- 1999
- Full Text
- View/download PDF
19. Expression of matrix metalloproteinase-9 in squamous cell carcinoma of the uterine cervix-clinicopathologic study using immunohistochemistry and mRNA in situ hybridization.
- Author
-
Davidson B, Goldberg I, Kopolovic J, Lerner-Geva L, Gotlieb WH, Weis B, Ben-Baruch G, and Reich R
- Subjects
- Adult, Carcinoma, Squamous Cell mortality, Carcinoma, Squamous Cell pathology, Case-Control Studies, Female, Follow-Up Studies, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Neoplastic, Humans, Immunohistochemistry, In Situ Hybridization, Matrix Metalloproteinase 9, Middle Aged, Neoplasm Invasiveness, RNA, Messenger analysis, Survival Analysis, Uterine Cervical Neoplasms mortality, Uterine Cervical Neoplasms pathology, Uterine Cervical Dysplasia mortality, Uterine Cervical Dysplasia pathology, Carcinoma, Squamous Cell enzymology, Collagenases metabolism, Uterine Cervical Neoplasms enzymology, Uterine Cervical Dysplasia enzymology
- Abstract
Objective: Invasion of the extracellular matrix and blood vessels by malignant neoplasms, with subsequent distant dissemination, is a key event in tumor progression. This process appears to be mediated largely through the action of matrix metalloproteinases (MMPs), a family of proteolytic enzymes produced by both stromal and tumor cells. The role of gelatinases (MMP-2 and MMP-9) in basement membrane and matrix degradation was described in various tumors. We studied MMP-9 protein expression in cervical intraepithelial neoplasia (CIN) and squamous cell carcinoma using immunohistochemistry and detected MMP-9 mRNA using in situ hybridization., Methods: Fifty squamous cell carcinomas, 10 cases of CIN II-III, and 10 normal cervices were stained for MMP-9, using a monoclonal antibody. The presence of MMP-9 mRNA was studied using in situ hybridization. Results were correlated with patient survival during a follow-up period of up to 167 months (average, 41 months)., Results: Immunohistochemical staining of tumor cells for MMP-9 was noted in 36/50 (72%) carcinomas and 5/10 (50%) CIN lesions, but was uniformly absent from the nonneoplastic epithelium adjacent to tumors and from control cervices. Peritumoral staining of stromal cells was observed in 27/50 (54%) carcinomas, but only in 3/10 (30%) CIN lesions and 1/10 (10%) control cervices. The presence of MMP-9 mRNA was detected in tumor cells in 39 (78%) carcinomas and 8 (80%) CIN lesions, but only in 4 (40%) control cervices. An intense signal for MMP-9 mRNA was observed most frequently in carcinomas. MMP-9 mRNA was detected in stromal cells in the majority of cases. However, an intense signal was observed only in stromal cells around invasive tumors. In survival analysis, age (P = 0.016), grade (P = 0. 016), and stage (P = 0.001) showed independent correlation with poor survival. Neither MMP-9 protein expression nor an intense signal for MMP-9 mRNA was associated with poor survival, although the latter was observed more frequently in neoplastic cells of lethal tumors (8/14 tumors vs 11/36 nonlethal tumors)., Conclusions: MMP-9 mRNA and protein expression are elevated in tumor and stromal cells of both high-grade CIN and invasive squamous cell carcinoma of the uterine cervix. Thus, MMP-9 is possibly an early marker of tumor progression in squamous lesions of the cervix. An intense stromal signal for MMP-9 mRNA characterizes some invasive carcinomas. Expression of MMP-9 in cervical carcinoma cells is present in both lethal and nonlethal tumors, consistent with the key role of this proteolytic enzyme in invasion, and does not appear to predict disease outcome., (Copyright 1999 Academic Press.)
- Published
- 1999
- Full Text
- View/download PDF
20. Intraperitoneal pressures and clinical parameters of total paracentesis for palliation of symptomatic ascites in ovarian cancer.
- Author
-
Gotlieb WH, Feldman B, Feldman-Moran O, Zmira N, Kreizer D, Segal Y, Elran E, and Ben-Baruch G
- Subjects
- Female, Hemodynamics, Humans, Ovarian Neoplasms physiopathology, Peritoneum, Pressure, Prospective Studies, Ascites etiology, Ascites surgery, Ovarian Neoplasms complications, Palliative Care, Paracentesis
- Abstract
Objective: The present study was designed to prospectively evaluate the intraperitoneal pressure, as well as clinical and hemodynamic effects of total paracentesis, as palliation of symptomatic ascites in ovarian cancer patients., Methods: Prospective study of 35 sequential total paracenteses was performed using a Veres cannula on patients with advanced recurrent ovarian cancer with symptomatic tense ascites. Relevant clinical symptoms and patient well-being were evaluated. Vital signs, abdominal parameters, and hydrostatic intraperitoneal pressure were recorded before, during, and after the procedure., Results: Intraperitoneal pressure dropped from 30 +/- 7 cmH2O before paracentesis to 13 +/- 6 cmH2O after the procedure (P < 0.0001). Marked symptomatic improvement was observed in all patients (89% complete relief, 11% partial relief), while all the patients tolerated the procedure well without any complications. The mean volume of ascitic fluid removed was 4800 ml. Mean respiratory rate and mean heart rate were both significantly decreased following the procedure (29.3 to 21.4 respirations per min and 101.5 to 93.6 beats per min, respectively). Mean systolic blood pressure mildly decreased (6.6 mmHg), while the mean diastolic blood pressure did not significantly change. None of the patients presented signs or symptoms of hypovolemia during or after the total paracentesis., Conclusions: Measurement of intraperitoneal pressures during total paracentesis for tense ascites in ovarian cancer patients indicated that the severity of symptoms correlated with the intraperitoneal pressure prior to paracentesis, but not with the volume of ascites. Intraperitoneal pressures measured following total paracentesis in patients with ovarian cancer were similar to the baseline intraperitoneal pressure measured in patients undergoing peritoneal dialysis., (Copyright 1998 Academic Press.)
- Published
- 1998
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.