CircRNA pappalysin 1 facilitates prostate cancer development through miR-515-5p/FKBP1A axis.

Guangwen Wang, Haiyang Zhao, Xiaohong Duan, Zhiqiang Ren

Andrologia 2021 Dec

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The role of circular RNA (circRNA) pappalysin 1 (circ-PAPPA; hsa_circ_0088233) in prostate cancer (PCa) cells was explored in the current study. Circ-PAPPA abundance was markedly enhanced in PCa. Circ-PAPPA interference restrained cell viability, proliferation, motility and glycolysis while elevated the apoptosis rate of PCa cells. Circ-PAPPA negatively regulated microRNA-515-5p (miR-515-5p) abundance. MiR-515-5p silencing largely diminished circ-PAPPA knockdown-mediated effects in PCa cells. MiR-515-5p directly bound to FKBP prolyl isomerase 1A (FKBP1A). MiR-515-5p overexpression-mediated impacts were partly counteracted by FKBP1A overexpression. Circ-PAPPA silencing reduced FKBP1A protein level partly by elevating miR-515-5p expression. Circ-PAPPA knockdown significantly restrained the tumour growth in vivo. Circ-PAPPA elevated the malignant phenotypes of PCa cells by sequestering miR-515-5p to induce the expression of FKBP1A. © 2021 Wiley-VCH GmbH.

Citation

Guangwen Wang, Haiyang Zhao, Xiaohong Duan, Zhiqiang Ren. CircRNA pappalysin 1 facilitates prostate cancer development through miR-515-5p/FKBP1A axis. Andrologia. 2021 Dec;53(11):e14227