کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3298533 | 1209906 | 2008 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Androgen Receptor Is a New Potential Therapeutic Target for the Treatment of Hepatocellular Carcinoma
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کلمات کلیدی
DHTDen5'-bromo-2'-deoxyuridine3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide - 3- (4،5-dimethylthiazol-2-yl) -2،5-difenyltetrazolium bromide5α-Dihydrotestosterone - 5α-دی هیدروتستوسترونMTT - MTTROS - ROSsiRNA - siRNABrdU - بروموداکسی اوریدینterminal deoxynucleotidyl transferase–mediated deoxyuridine triphosphate nick-end labeling - برچسب ترمودینامیک deoxyuridine triphosphate ترمینال deoxynucleotidyl transferase ترمینالsmall interference RNA - تداخل کوچک RNATUNEL - تونلReactive oxygen species - گونههای فعال اکسیژنAndrogen Receptor - گیرنده آندروژنی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
بیماریهای گوارشی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Background & Aims: Androgen effects on hepatocellular carcinoma (HCC) remain controversial and androgen ablation therapy to treat HCC also leads to inconsistent results. Here we examine androgen receptor (AR) roles in hepatocarcinogenesis using mice lacking AR in hepatocytes. Methods: By using the Cre-Lox conditional knockout mice model injected with carcinogen, we examined the AR roles in hepatocarcinogenesis. We also tested the possible roles of AR in cellular oxidative stress and DNA damage sensing/repairing systems. By using AR degrading compound, ASC-J9, or AR-small interference RNA, we also examined the therapeutic potentials of targeting AR in HCC. Results: We found AR expression was increased in human HCC compared with normal livers. We also found mice lacking hepatic AR developed later and less HCC than their wild-type littermates with comparable serum testosterone in both male and female mice. Addition of functional AR in human HCC cells also resulted in the promotion of cell growth in the absence or presence of 5α-dihydrotestosterone. Mechanistic dissection suggests that AR may promote hepatocarcinogenesis via increased cellular oxidative stress and DNA damage, as well as suppression of p53-mediated DNA damage sensing/repairing system and cell apoptosis. Targeting AR directly via either AR-small interference RNA or ASC-J9 resulted in suppression of HCC in both ex vivo cell lines and in vivo mice models. Conclusions: Our data point to AR, but not androgens, as a potential new and better therapeutic target for the battle of HCC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gastroenterology - Volume 135, Issue 3, September 2008, Pages 947-955.e5
Journal: Gastroenterology - Volume 135, Issue 3, September 2008, Pages 947-955.e5
نویسندگان
Weng-Lung Ma, Cheng-Lung Hsu, Ming-Heng Wu, Chun-Te Wu, Cheng-Chia Wu, Jiann-Jyh Lai, Yuh-Shan Jou, Chun-Wei Chen, Shuyuan Yeh, Chawnshang Chang,