PrLZ protects prostate cancer cells from apoptosis induced by androgen deprivation via the activation of Stat3/Bcl-2 pathway.

ABSTRACT: PrLZ/PC-1 is a newly identified, prostate-specific and androgen-inducible gene. Our previous study showed that PrLZ can enhance the proliferation and invasive capability of LNCaP cells, contributing to the development of prostate cancer. However, its potential role in androgen-independent processes remains elusive. In this study, we showed that PrLZ enhanced in vitro growth and colony formation of prostate cancer cells on androgen deprivation as well as tumorigenicity in castrated nude mice. In addition, PrLZ stabilized mitochondrial transmembrane potential, prevented release of cytochrome c from mitochondria to cytoplasm, and inhibited intrinsic apoptosis induced by androgen depletion. Mechanistically, PrLZ elevated the phosphorylation of Akt and Stat3 and upregulated Bcl-2 expression. Ou

SUBMITTER: Zhang D 

PROVIDER: S-EPMC3680512 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature