| Title | Autophagy protects LNCaP cells under androgen deprivation conditions |
| Authors | Li, Mengqiang Jiang, Xuejun Liu, Di Na, Yanqun Gao, George F. Xi, Zhijun |
| Affiliation | Chinese Acad Sci, Inst Microbiol, Ctr Mol Immunol, Beijing 100101, Peoples R China. Peking Univ, Peking Univ Hosp 1, Dept Urol, Inst Urol, Beijing 100871, Peoples R China. |
| Keywords | autophagy prostatic neoplasms androgen beclin 1 apoptosis PROSTATE-CANCER CELLS RAT PROSTATE KINASE-B IN-VIVO APOPTOSIS GROWTH DEATH INHIBITION PROLIFERATION PROGRESSION |
| Issue Date | 2008 |
| Publisher | autophagy |
| Citation | AUTOPHAGY.2008,4,(1),54-60. |
| Abstract | Androgen plays a critical role in the development and progression of prostate cancer. However, the regulatory role of androgen in the autophagic process and the function of the increased autophagosomes following androgen deprivation remain poorly understood. We found that autophagosomes, which were induced upon serum deprivation in LNCaP cells, can be significantly suppressed by dihydrotestosterone (DHT). Pharmacological inhibition of autophagy by 3-methyladenine led to increased apoptosis of LNCaP cells in serum-free medium compared to the medium with DHT or serum. Additionally, depletion of Beclin 1 to inhibit autophagy by small interfering RNA resulted in a slower proliferation of LNCaP cells in the medium depleted of serum than in the medium with DHT. Altogether, these findings suggested that LNCaP cells can resort to the autophagic pathway to survive under androgen deprivation conditions, which can be a novel mechanism involved in the transition of prostate cancer cells from an androgen-dependent to an androgen-independent cell type. |
| URI | http://hdl.handle.net/20.500.11897/304792 |
| ISSN | 1554-8627 |
| Indexed | SCI(E) PubMed |
| Appears in Collections: | 第一医院 |
