21 results on '"Yue Hong"'
Search Results
2. Investigation of the association between miR-181b, Bcl-2 and LRIG1 in oral verrucous carcinoma
- Author
-
Yuan Li, Yiping Li, Krishna Munnee, Hong‑Zhi Quan, Zhan Gui Tang, Yue‑Hong Wang, Zhi‑Yuan Deng, Ousheng Liu, and Wu Zhu
- Subjects
0301 basic medicine ,Adult ,Male ,Cancer Research ,Down-Regulation ,Biology ,Biochemistry ,oral verrucous carcinoma ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,microRNA ,Genetics ,medicine ,Humans ,Bcl-2 ,Carcinoma, Verrucous ,Molecular Biology ,miRNA ,Mouth ,Membrane Glycoproteins ,Oncogene ,Verrucous carcinoma ,apoptosis ,LRIG1 ,Cancer ,Articles ,Cell cycle ,Middle Aged ,medicine.disease ,Molecular medicine ,Lymphoma ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,MicroRNAs ,030104 developmental biology ,Oncology ,Proto-Oncogene Proteins c-bcl-2 ,030220 oncology & carcinogenesis ,Cancer research ,Carcinoma, Squamous Cell ,Molecular Medicine ,Immunohistochemistry ,Female ,Mouth Neoplasms - Abstract
Abnormal expression of microRNAs (miRNAs) is involved in the development of and anti‑apoptotic effects in various types of human cancer. However, miRNA‑mediated regulation of oral verrucous carcinoma (OVC) remains to be elucidated. The present study aimed to investigate the expression of miR‑181b in OVC and oral squamous cell carcinoma (OSCC). The expression levels of miR‑181b were determined using reverse transcription‑quantitative polymerase chain reaction. The expression levels of B‑cell lymphoma 2 (Bcl‑2) and leucine rich repeats and immunoglobulin like domains 1 (LRIG1), were evaluated using immunohistochemical staining. The correlation between Bcl‑2 and LRIG1 expression was determined using a Pearson correlation analysis. The expression levels of miR‑181b and Bcl‑2 in OVC were significantly higher compared with normal mucosal tissue (NM); however, lower compared with the OSCC. The key target of miR‑181b was LRIG1 and it was significantly lower in OVC tissues compared with NM tissue; however this was higher when compared with OSCC tissue. The expression levels of Bcl‑2 were correlated with expression levels of LRIG1 in OVC tissues. Therefore, LRIG1 may be associated with anti‑apoptotic function in OVC tissues.
- Published
- 2016
3. Interleukin‑10 promotes primary rat hepatic stellate cell senescence by upregulating the expression levels of p53 and p21
- Author
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Yun‑Xin Chen, Zhixin Chen, Ming‑Hua Chen, Xiao-Zhong Wang, Li-Juan Zhang, Yue‑Hong Huang, and Qi‑Lan Guo
- Subjects
p53 ,Male ,0301 basic medicine ,Senescence ,Cancer Research ,senescence ,interleukin-10 ,Cell ,Apoptosis ,Biochemistry ,Flow cytometry ,Proto-Oncogene Proteins p21(ras) ,Extracellular matrix ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Western blot ,cytokine ,Hepatic Stellate Cells ,Genetics ,medicine ,Animals ,Oil Red O ,Molecular Biology ,Cellular Senescence ,Cell Proliferation ,p21 ,medicine.diagnostic_test ,Cell growth ,hemic and immune systems ,Articles ,Molecular biology ,Rats ,030104 developmental biology ,medicine.anatomical_structure ,Gene Expression Regulation ,Oncology ,chemistry ,030220 oncology & carcinogenesis ,Hepatic stellate cell ,Cytokines ,Molecular Medicine ,Inflammation Mediators ,Tumor Suppressor Protein p53 ,Signal Transduction - Abstract
Liver fibrosis is characterized by the excessive deposition of extracellular matrix (ECM) components, and activated hepatic stellate cells (HSCs) are a primary source of ECM. Several studies have revealed that the induction of HSC senescence may reduce liver fibrosis. The effect of interleukin‑10 (IL‑10) on the senescence of activated HSCs is not fully understood. Therefore, the present study examined its effects and potential mechanisms in activated primary rat HSCs. Collagenase perfusion and density gradient centrifugation methods were used to isolate rat HSCs. HSCs were identified by autofluorescence, Oil Red O staining and immunocytochemical analysis. Activated HSCs were treated with 0, 10, 20 or 40 ng/ml IL‑10 for 24 h. Senescence‑associated β‑galactosidase (SA‑β‑Gal) staining, flow cytometry analysis and a cell counting kit‑8 assay were performed to detect the senescence, apoptosis and viability of rat HSCs, respectively. Reverse transcription‑quantitative polymerase chain reaction, western blot analysis and enzyme linked immunosorbent assays were used to detect the expression of senescence‑associated proteins and cytokines. Freshly isolated rat HSCs exhibited a striking blue‑green autofluorescence and HSC retinoid droplets were stained bright red by Oil Red O. Immunocytochemical analysis demonstrated the cytoplasmic expression of HSC markers desmin and α‑smooth muscle actin. The number of SA‑β‑Gal positive HSCs, the apoptotic rate and the expression levels of p53, p21 and tumor necrosis factor‑α were significantly increased following IL‑10 treatment. HSC viability and IL‑6 and IL‑8 expression levels were significantly decreased compared with the control group. In summary, primary rat HSCs were successfully isolated and IL‑10 was demonstrated to promote the senescence of activated primary rat HSCs through the upregulation of p53 and p21 expression.
- Published
- 2018
4. Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats
- Author
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Xiao‑Yan Zhang, Hong‑Xia Zhou, Ling‑Li Meng, Yue‑Hong Li, and Chun‑Lai Zhang
- Subjects
Male ,Cancer Research ,Pathology ,medicine.medical_specialty ,Traumatic brain injury ,Gene Expression ,Connexin ,Morris water navigation task ,Hippocampus ,Brain Edema ,Pharmacology ,Hippocampal formation ,Biology ,Biochemistry ,Neuroprotection ,Hypothermia, Induced ,Memory ,Genetics ,medicine ,Animals ,Maze Learning ,Molecular Biology ,Intracranial pressure ,Hypothermia ,medicine.disease ,Immunohistochemistry ,Rats ,Up-Regulation ,Disease Models, Animal ,Excitatory Amino Acid Transporter 2 ,Oncology ,Brain Injuries ,Connexin 43 ,Molecular Medicine ,medicine.symptom - Abstract
Traumatic brain injury (TBI) is a common cause of worldwide disability and mortality. Currently, the incidence and prevalence of TBI is markedly increasing and an effective therapy is lacking. Therapeutic hypothermia (32‑35˚C) has been reported to reduce intracranial pressure and induce putative neuroprotective effects. However, the underlying molecular mechanisms remain to be elucidated. The aim of the present study was to investigate the effects of mild induced hypothermia (MIH) on the expression of connexin 43 (Cx43) and glutamate transporter 1 (GLT‑1) in the hippocampus following TBI in rats. A rat model of TBI was created using a modified weight‑drop device, followed by 4 h of hypothermia (33˚C) or normothermia (37˚C). A wet‑dry weight method was used to assess brain edema and spatial learning ability was evaluated using a Morris water maze. The levels of Cx43 and GLT‑1 were detected by immunohistochemical and western blot analysis, respectively. The results demonstrated that MIH treatment improved TBI‑induced brain edema and neurological function deficits. In addition, therapeutic MIH significantly downregulated Cx43 expression and upregulated the levels of GLT‑1 in the hippocampus post‑TBI. These findings suggested that treatment with MIH may provide a novel neuroprotective therapeutic strategy for TBI through reversing the increase in Cx43 protein and the decrease in GLT‑1.
- Published
- 2014
5. Interleukin‑10 promotes primary rat hepatic stellate cell senescence by upregulating the expression levels of p53 and p21
- Author
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Huang, Yue‑Hong, primary, Chen, Ming‑Hua, additional, Guo, Qi‑Lan, additional, Chen, Yun‑Xin, additional, Zhang, Li‑Juan, additional, Chen, Zhi‑Xin, additional, and Wang, Xiao‑Zhong, additional
- Published
- 2018
- Full Text
- View/download PDF
6. MicroRNA‑146a/NAPDH oxidase4 decreases reactive oxygen species generation and inflammation in a diabetic nephropathy model
- Author
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Wan, Rong Jun, primary and Li, Yue Hong, additional
- Published
- 2018
- Full Text
- View/download PDF
7. MicroRNA‑146a/NAPDH oxidase4 decreases reactive oxygen species generation and inflammation in a diabetic nephropathy model
- Author
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Yue Hong Li and Rong Jun Wan
- Subjects
0301 basic medicine ,Male ,Cancer Research ,Vascular Cell Adhesion Molecule-1 ,Inflammation ,medicine.disease_cause ,Biochemistry ,Cell Line ,Superoxide dismutase ,03 medical and health sciences ,Mice ,Genetics ,medicine ,Animals ,Humans ,Diabetic Nephropathies ,Cell adhesion ,Molecular Biology ,chemistry.chemical_classification ,Reactive oxygen species ,biology ,Superoxide Dismutase ,NOX4 ,Antagomirs ,Streptozotocin ,Intercellular Adhesion Molecule-1 ,Molecular biology ,Acetylcysteine ,Mice, Inbred C57BL ,Disease Models, Animal ,MicroRNAs ,Oxidative Stress ,030104 developmental biology ,Glucose ,Oncology ,chemistry ,Apoptosis ,NADPH Oxidase 4 ,biology.protein ,Molecular Medicine ,medicine.symptom ,Reactive Oxygen Species ,Oxidative stress ,medicine.drug - Abstract
The present study investigated the role of microRNA (miR)‑146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK‑2 human kidney cell line were exposed to 45% D‑glucose as an in vitro DN model. Firstly, it was demonstrated that miR‑146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK‑2 cells, overexpression of miR‑146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule‑1 (VCAM‑1) and intracellular adhesion molecule‑1 (ICAM‑1) protein expression. Nacetylcysteine, a Nox4 inhibitor, was demonstrated to inhibit ROS generation, suppress VCAM‑1 and ICAM‑1 protein expression, and decrease oxidative stress and inflammation in HK‑2 cells following overexpression of miR‑146a. In conclusion, these results indicated that miR‑146a/Nox4 decreases ROS generation and inflammation and prevents DN. Therefore, miR‑146a may represent a novel anti‑inflammatory and ‑oxidative modulator of DN.
- Published
- 2016
8. HSVtk/GCV system on hepatoma carcinoma cells: Construction of the plasmid pcDNA3.1‑pAFP-TK and targeted killing effect
- Author
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Na Zhao, Jun Xu, Yongfang Li, Ying‑Min Zhang, Ran‑Peng Gao, Hai-Long Wang, Qi Zhang, Rui Guo, Yang‑Yang Yuan, Xiu‑Shan Dong, Fan‑Xiu Meng, Qin Qin, Bao‑Feng Yu, Yue‑Hong Zhang, and Jun Xie
- Subjects
0301 basic medicine ,Gene Expression Regulation, Viral ,Cancer Research ,Carcinoma, Hepatocellular ,Cell Survival ,ganciclovir ,Cell ,Apoptosis ,Biology ,Biochemistry ,Thymidine Kinase ,hepatoma carcinoma cells ,03 medical and health sciences ,0302 clinical medicine ,Cell Line, Tumor ,Genetics ,medicine ,Humans ,Simplexvirus ,Prodrugs ,Viability assay ,Promoter Regions, Genetic ,Molecular Biology ,Membrane Potential, Mitochondrial ,Caspase 3 ,Liver Neoplasms ,Transfection ,Bystander Effect ,Sequence Analysis, DNA ,Articles ,Cell cycle ,Suicide gene ,Molecular biology ,gene therapy ,AFP promoter ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Thymidine kinase ,Cell culture ,030220 oncology & carcinogenesis ,Molecular Medicine ,alpha-Fetoproteins ,Plasmids - Abstract
Previous studies demonstrated that herpes simplex virus thymidine kinase (HSVtk) could phosphorylate non‑toxic gancyclovir (GCV) efficiently to produce phosphorylated products that result in cell apoptosis, to kill tumor cells. The present study aimed to construct a plasmid vector, pcDNA3.1‑pAFP‑TK, carrying the suicide gene driven by the alpha‑fetoprotein (AFP) promoter, to investigate the cytotoxicity of HSVtk/GCV suicide gene system on hepatoma carcinoma cells. Reverse transcription‑polymerase chain reaction and western blotting results demonstrated that the HSVtk gene was effectively expressed in HepG2 hepatoma carcinoma cells transfected with pcDNA3.1‑pAFP‑TK plasmid, whereas HSVtk gene expression was not detected in normal HL‑7702 liver cells. In addition, MTT assays indicated that cell viability of HepG2 cells with the plasmid pcDNA3.1‑pAFP‑TK decreased in a dose‑dependent manner following treatment with GCV for 48 h. Flow cytometry also revealed that the cell apoptosis rate and mitochondrial membrane potential reduction rate in the HepG2 cells treated with HSVtk/GCV suicide gene system were significantly higher than in the control group. Apoptosis rates in the control group and the pcDNA3.1‑pAFP‑TK group were (1.00±0.62%) and (38.70±6.03%), respectively. Mitochondrial membrane potential reduction rates in the control group and the pcDNA3.1-pAFP-TK group were (0.57±0.11%) and (22.84±5.79%), respectively. Caspase‑3 staining demonstrated that activated caspase‑3 increased significantly in the HepG2 cells treated with HSVtk/GCV suicide gene system, whereas in the control group activated caspase‑3 increase was not observed. The results of the present study, therefore, indicated that HSVtk suicide gene was obviously expressed in the HepG2 cells and that the HSVtk/GCV system was effective at killing HepG2 hepatoma carcinoma cells.
- Published
- 2016
9. Effects of Artesunate prevent nephritis via the Toll-like receptor 4/nuclear factor-κB signaling pathway in rats
- Author
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Wan, Rong Jun, primary and Li, Yue Hong, additional
- Published
- 2017
- Full Text
- View/download PDF
10. HSVtk/GCV system on hepatoma carcinoma cells: Construction of the plasmid pcDNA3.1-pAFP-TK and targeted killing effect
- Author
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Li, Yong-Fang, primary, Yuan, Yang-Yang, additional, Zhang, Ying-Min, additional, Zhao, Na, additional, Zhang, Qi, additional, Meng, Fan-Xiu, additional, Gao, Ran-Peng, additional, Yu, Bao-Feng, additional, Zhang, Yue-Hong, additional, Guo, Rui, additional, Wang, Hai-Long, additional, Xie, Jun, additional, Xu, Jun, additional, Qin, Qin, additional, and Dong, Xiu-Shan, additional
- Published
- 2017
- Full Text
- View/download PDF
11. Investigation of the association between miR-181b, Bcl-2 and LRIG1 in oral verrucous carcinoma
- Author
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Deng, Zhi-Yuan, primary, Wang, Yue-Hong, additional, Quan, Hong-Zhi, additional, Liu, Ou-Sheng, additional, Li, Yi-Ping, additional, Li, Yuan, additional, Zhu, Wu, additional, Munnee, Krishna, additional, and Tang, Zhan-Gui, additional
- Published
- 2016
- Full Text
- View/download PDF
12. Baicalein inhibits migration and invasion of gastric cancer cells through suppression of the TGF-β signaling pathway
- Author
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Sanmei Li, Fenglin Chen, Jun Peng, Jian-Ying Li, Zhixin Chen, Tingxuan Huang, Mingkai Zhuang, Manqiang Lin, Xiao-Zhong Wang, Yating Xu, Hongming Lin, and Yue-Hong Huang
- Subjects
Cancer Research ,Cell ,Biochemistry ,Plant Roots ,Metastasis ,chemistry.chemical_compound ,Cell Movement ,Stomach Neoplasms ,Transforming Growth Factor beta ,Cell Line, Tumor ,Genetics ,medicine ,Humans ,Vimentin ,Molecular Biology ,Smad4 Protein ,Zinc Finger E-box Binding Homeobox 2 ,Homeodomain Proteins ,Oncogene ,biology ,Cancer ,Zinc Finger E-box-Binding Homeobox 1 ,medicine.disease ,biology.organism_classification ,Cadherins ,Antineoplastic Agents, Phytogenic ,Baicalein ,Cell biology ,Repressor Proteins ,medicine.anatomical_structure ,Oncology ,chemistry ,Cancer cell ,Flavanones ,Molecular Medicine ,Scutellaria baicalensis ,Signal transduction ,Signal Transduction ,Transcription Factors - Abstract
The transforming growth factor-β (TGF-β) signaling pathway exhibits an important role in cancer invasion and metastasis. Excessive expression of TGF-β activates Smad4, leading to the upregulation of downstream metastasis-associated genes. Thus, the inhibition of the TGF-β/Smad4 signaling pathway may be a novel strategy for treatment of cancer metastasis. Baicalein, a flavonoid derived from the root of Scutellaria baicalensis, has been reported to exert strong anti-tumor activity towards various types of cancer. In the present study the effect of baicalein on migration and invasion of cancer cells was evaluated using wound-healing and Transwell assays. In order to investigate the possible molecular mechanisms of the anti-metastatic effects of baicalein, quantitative polymerase chain reaction (qPCR) and western blot analyses were performed to examine the effect on the expression of TGF‑β, Smad4, N-cadherin, vimentin, ZEB1 and ZEB2. It was determined that baicalein inhibited the migration and invasion of AGS cells by suppressing the TGF-β/Smad4 signaling pathway. In addition, baicalein treatment reduced the expression of the metastasis-associated N-cadherin, vimentin, ZEB1 and ZEB2, downstream target genes of the TGF‑β/Smad4 signaling pathway. Collectively, these results suggest that inhibition of the metastasis of cancer cells via inactivation of TGF-β/Smad4 signaling is one of the mechanisms by which baicalein may treat cancer.
- Published
- 2013
13. Effects of Artesunate prevent nephritis via the Toll‑like receptor 4/nuclear factor‑κB signaling pathway in rats.
- Author
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RONG JUN WAN and YUE HONG LI
- Subjects
- *
ARTEMISIA , *DRUG therapy for malaria , *INFLAMMATION , *NEPHRITIS , *LABORATORY rats - Abstract
The active ingredient in Artemisia carvifolia, artemisinin, may alleviate inflammation and toxicity. Artemisinin and its derivatives are first‑line anti‑malarial drugs currently, which have rapid effects on fever caused by malaria parasites with fewer side effects. The present study investigated the effects of Artesunate in a mouse nephritis model. Mice were injected intraperitoneally with 500 µl pristine to induce nephritis, and were treated with 28.8 mg/kg Artesunate. Subsequently, proteinuria, renal function, and tumor necrosis factor (TNF)‑α and interleukin (IL)‑6 levels were assessed to evaluate the effects of Artesunate on nephritis. Western blot analysis was used to measure the protein expression levels of α‑smooth muscle actin (SMA), TLR4, myeloid differentiation primary response gene 88 (MyD88), NF‑κB p65 and transforming growth factor (TGF)‑β1 to investigate the underlying mechanisms of Artesunate on nephritis. The results demonstrated that Artesunate reduced proteinuria and preserved renal function in nephritis mice. Artesunate attenuated TNF‑α and IL‑6 levels, suppressed α‑SMA, TLR4, MyD88, NF‑κB p65 and TGF‑β1 protein expression, and decreased caspase‑3 activity in nephritis mice. These results indicated that the effects of Artesunate may prevent nephritis and inhibit inflammation via the TLR4/NF‑κB signaling pathway in mice. Therefore, Artesunate may be a potential therapeutic agent to prevent nephritis. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
14. Interleukin-10 gene modification attenuates hepatocyte activation of rat hepatic stellate cells in vitro
- Author
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Li-Juan Zhang, Yue-Hong Huang, Yun-Xin Chen, Zhi-Xin Chen, Xiao-Zhong Wang, and Wei-Da Zheng
- Subjects
Cancer Research ,Genetic enhancement ,medicine.medical_treatment ,Apoptosis ,Gene delivery ,Biology ,Transfection ,Biochemistry ,Collagen Type I ,Rats, Sprague-Dawley ,Genetics ,medicine ,Hepatic Stellate Cells ,Animals ,Molecular Biology ,Cells, Cultured ,Cell Proliferation ,Asialoglycoprotein ,Actins ,Coculture Techniques ,Interleukin-10 ,Rats ,Interleukin 10 ,medicine.anatomical_structure ,Cytokine ,Oncology ,Hepatocyte ,Liposomes ,Cancer research ,Hepatic stellate cell ,Hepatocytes ,Molecular Medicine - Abstract
Activation of hepatic stellate cells (HSCs) plays a key role in the progression of liver fibrosis. Interleukin-10 (IL-10), a potential anti-fibrosis cytokine, has an unfavorable pharmacokinetic profile, which limits its clinical applications. A liver-targeting gene delivery system may maintain a longer-lasting concentration in hepatic tissue with fewer side‑effects in non-target tissues. In the present study, when delivered by asialoglycoprotein receptor-mediated liposomes, the IL-10 gene was highly expressed in BRL cells (a rat hepatocyte line) and attenuated the apoptosis of BRL cells induced by plasmid transfection. In a co-culture system, BRL cells demonstrated a marked ability to stimulate the proliferation of primary HSCs and their expression of α-SMA and procollagen type I. Following modification of the BRL cells with the IL-10 gene, this stimulation was attenuated and an accelerated apoptosis of the HSCs was induced. These results suggest that hepatocyte‑targeting gene delivery may be an ideal technique for the IL-10 gene therapy of liver fibrosis, which requires further confirmation by in vivo studies.
- Published
- 2012
15. Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats
- Author
-
LI, YUE-HONG, primary, ZHANG, CHUN-LAI, additional, ZHANG, XIAO-YAN, additional, ZHOU, HONG-XIA, additional, and MENG, LING-LI, additional
- Published
- 2014
- Full Text
- View/download PDF
16. HSVtk/GCV system on hepatoma carcinoma cells: Construction of the plasmid pcDNA3.1-pAFP-TK and targeted killing effect.
- Author
-
Yong-Fang Li, Yang-Yang Yuan, Ying-Min Zhang, Na Zhao, Qi Zhang, Fan-Xiu Meng, Ran-Peng Gao, Bao-Feng Yu, Yue-Hong Zhang, Rui Guo, Hai-Long Wang, Jun Xie, Jun Xu, Qin Qin, and Xiu-Shan Dong
- Subjects
HEPATOCELLULAR carcinoma ,APOPTOSIS ,ALPHA fetoproteins ,HERPES simplex ,PLASMIDS - Abstract
Previous studies demonstrated that herpes simplex virus thymidine kinase (HSVtk) could phosphorylate non-toxic gancyclovir (GCV) efficiently to produce phosphorylated products that result in cell apoptosis, to kill tumor cells. The present study aimed to construct a plasmid vector, pcDNA3.1-pAFP-TK, carrying the suicide gene driven by the alpha-fetoprotein (AFP) promoter, to investigate the cytotoxicity of HSVtk/GCV suicide gene system on hepatoma carcinoma cells. Reverse transcription-polymerase chain reaction and western blotting results demonstrated that the HSVtk gene was effectively expressed in HepG2 hepatoma carcinoma cells transfected with pcDNA3.1-pAFP-TK plasmid, whereas HSVtk gene expression was not detected in normal HL-7702 liver cells. In addition, MTT assays indicated that cell viability of HepG2 cells with the plasmid pcDNA3.1-pAFP-TK decreased in a dose-dependent manner following treatment with GCV for 48 h. Flow cytometry also revealed that the cell apoptosis rate and mitochondrial membrane potential reduction rate in the HepG2 cells treated with HSVtk/GCV suicide gene system were significantly higher than in the control group. Apoptosis rates in the control group and the pcDNA3.1-pAFP-TK group were (1.00±0.62%) and (38.70±6.03%), respectively. Mitochondrial membrane potential reduction rates in the control group and the pcDNA3.1-pAFP-TK group were (0.57±0.11%) and (22.84±5.79%), respectively. Caspase-3 staining demonstrated that activated caspase-3 increased significantly in the HepG2 cells treated with HSVtk/GCV suicide gene system, whereas in the control group activated caspase-3 increase was not observed. The results of the present study, therefore, indicated that HSVtk suicide gene was obviously expressed in the HepG2 cells and that the HSVtk/GCV system was effective at killing HepG2 hepatoma carcinoma cells. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
17. Investigation of the association between miR-181b, Bcl-2 and LRIG1 in oral verrucous carcinoma.
- Author
-
ZHI-YUAN DENG, YUE-HONG WANG, HONG-ZHI QUAN, OU-SHENG LIU, YI-PING LI, YUAN LI, WU ZHU, KRISHNA MUNNEE, and ZHAN-GUI TANG
- Subjects
- *
MICRORNA , *GENE expression , *REVERSE transcriptase polymerase chain reaction , *IMMUNOGLOBULIN E , *SQUAMOUS cell carcinoma - Abstract
Abnormal expression of microRNAs (miRNAs) is involved in the development of and anti-apoptotic effects in various types of human cancer. However, miRNA-mediated regulation of oral verrucous carcinoma (OVC) remains to be elucidated. The present study aimed to investigate the expression of miR-181b in OVC and oral squamous cell carcinoma (OSCC). The expression levels of miR-181b were determined using reverse transcription-quantitative polymerase chain reaction. The expression levels of B-cell lymphoma 2 (Bcl-2) and leucine rich repeats and immunoglobulin like domains 1 (LRIG1), were evaluated using immunohistochemical staining. The correlation between Bcl-2 and LRIG1 expression was determined using a Pearson correlation analysis. The expression levels of miR-181b and Bcl-2 in OVC were significantly higher compared with normal mucosal tissue (NM); however, lower compared with the OSCC. The key target of miR-181b was LRIG1 and it was significantly lower in OVC tissues compared with NM tissue; however this was higher when compared with OSCC tissue. The expression levels of Bcl-2 were correlated with expression levels of LRIG1 in OVC tissues. Therefore, LRIG1 may be associated with anti-apoptotic function in OVC tissues. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
18. Interleukin-10 gene modification attenuates hepatocyte activation of rat hepatic stellate cells in vitro
- Author
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CHEN, YUN-XIN, primary, HUANG, YUE-HONG, additional, ZHENG, WEI-DA, additional, CHEN, ZHI-XIN, additional, ZHANG, LI-JUAN, additional, and WANG, XIAO-ZHONG, additional
- Published
- 2012
- Full Text
- View/download PDF
19. Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats.
- Author
-
YUE-HONG LI, CHUN-LAI ZHANG, XIAO-YAN ZHANG, HONG-XIA ZHOU, and LING-LI MENG
- Subjects
- *
HYPOTHERMIA , *GLUTAMATE transporters , *BRAIN injuries , *LABORATORY rats , *GENE expression , *CEREBRAL edema - Abstract
Traumatic brain injury (TBI) is a common cause of worldwide disability and mortality. Currently, the incidence and prevalence of TBI is markedly increasing and an effective therapy is lacking. Therapeutic hypothermia (32-35˚C) has been reported to reduce intracranial pressure and induce putative neuroprotective effects. However, the underlying molecular mechanisms remain to be elucidated. The aim of the present study was to investigate the effects of mild induced hypothermia (MIH) on the expression of connexin 43 (Cx43) and glutamate transporter 1 (GLT-1) in the hippocampus following TBI in rats. A rat model of TBI was created using a modified weight-drop device, followed by 4 h of hypothermia (33˚C) or normothermia (37˚C). A wet-dry weight method was used to assess brain edema and spatial learning ability was evaluated using a Morris water maze. The levels of Cx43 and GLT-1 were detected by immunohistochemical and western blot analysis, respectively. The results demonstrated that MIH treatment improved TBI-induced brain edema and neurological function deficits. In addition, therapeutic MIH significantly downregulated Cx43 expression and upregulated the levels of GLT-1 in the hippocampus post-TBI. These findings suggested that treatment with MIH may provide a novel neuroprotective therapeutic strategy for TBI through reversing the increase in Cx43 protein and the decrease in GLT-1. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
20. Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats.
- Author
-
Li YH, Zhang CL, Zhang XY, Zhou HX, and Meng LL
- Subjects
- Animals, Brain Edema etiology, Brain Edema pathology, Brain Edema therapy, Brain Injuries pathology, Brain Injuries therapy, Connexin 43 genetics, Disease Models, Animal, Excitatory Amino Acid Transporter 2 genetics, Gene Expression, Hippocampus pathology, Immunohistochemistry, Male, Maze Learning, Memory, Rats, Up-Regulation, Brain Injuries metabolism, Connexin 43 metabolism, Excitatory Amino Acid Transporter 2 metabolism, Hippocampus metabolism, Hypothermia, Induced
- Abstract
Traumatic brain injury (TBI) is a common cause of worldwide disability and mortality. Currently, the incidence and prevalence of TBI is markedly increasing and an effective therapy is lacking. Therapeutic hypothermia (32‑35˚C) has been reported to reduce intracranial pressure and induce putative neuroprotective effects. However, the underlying molecular mechanisms remain to be elucidated. The aim of the present study was to investigate the effects of mild induced hypothermia (MIH) on the expression of connexin 43 (Cx43) and glutamate transporter 1 (GLT‑1) in the hippocampus following TBI in rats. A rat model of TBI was created using a modified weight‑drop device, followed by 4 h of hypothermia (33˚C) or normothermia (37˚C). A wet‑dry weight method was used to assess brain edema and spatial learning ability was evaluated using a Morris water maze. The levels of Cx43 and GLT‑1 were detected by immunohistochemical and western blot analysis, respectively. The results demonstrated that MIH treatment improved TBI‑induced brain edema and neurological function deficits. In addition, therapeutic MIH significantly downregulated Cx43 expression and upregulated the levels of GLT‑1 in the hippocampus post‑TBI. These findings suggested that treatment with MIH may provide a novel neuroprotective therapeutic strategy for TBI through reversing the increase in Cx43 protein and the decrease in GLT‑1.
- Published
- 2015
- Full Text
- View/download PDF
21. Interleukin-10 gene modification attenuates hepatocyte activation of rat hepatic stellate cells in vitro.
- Author
-
Chen YX, Huang YH, Zheng WD, Chen ZX, Zhang LJ, and Wang XZ
- Subjects
- Actins metabolism, Animals, Apoptosis, Cell Proliferation, Cells, Cultured, Coculture Techniques, Collagen Type I metabolism, Hepatocytes metabolism, Liposomes chemistry, Liposomes metabolism, Rats, Rats, Sprague-Dawley, Transfection, Hepatic Stellate Cells cytology, Hepatocytes cytology, Interleukin-10 genetics
- Abstract
Activation of hepatic stellate cells (HSCs) plays a key role in the progression of liver fibrosis. Interleukin-10 (IL-10), a potential anti-fibrosis cytokine, has an unfavorable pharmacokinetic profile, which limits its clinical applications. A liver-targeting gene delivery system may maintain a longer-lasting concentration in hepatic tissue with fewer side‑effects in non-target tissues. In the present study, when delivered by asialoglycoprotein receptor-mediated liposomes, the IL-10 gene was highly expressed in BRL cells (a rat hepatocyte line) and attenuated the apoptosis of BRL cells induced by plasmid transfection. In a co-culture system, BRL cells demonstrated a marked ability to stimulate the proliferation of primary HSCs and their expression of α-SMA and procollagen type I. Following modification of the BRL cells with the IL-10 gene, this stimulation was attenuated and an accelerated apoptosis of the HSCs was induced. These results suggest that hepatocyte‑targeting gene delivery may be an ideal technique for the IL-10 gene therapy of liver fibrosis, which requires further confirmation by in vivo studies.
- Published
- 2013
- Full Text
- View/download PDF
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