Androgen-induced lncRNA POTEF-AS1 regulates apoptosis related pathway to facilitate cell survival in prostate cancer cells

Abstract

Although long noncoding RNAs (lncRNA) have been associated with a variety of cancers, the interplay between lncRNAs and androgen receptor (AR) signaling in prostate cancer is still unclear. Here, we identified an androgen-dependent lncRNA, prostate, ovary, testis expressed protein family member-F antisense transcript-1 (POTEF-AS1), whose expression was regulated by AR in two androgen-dependent cells by using directional RNA-seq analysis. POTEF-AS1 promoted cell growth, repressed genes related to the toll-like receptor (TLR) signaling and apoptosis pathways and inhibited apoptosis in docetaxel-treated LNCaP cells. These findings suggest that POTEF-AS1 would play a key role in the progression of prostate cancer by repressing TLR signaling.

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