RNAi-Mediated Downregulation of FKBP14 Suppresses the Growth of Human Ovarian Cancer Cells

Oncol Res. 2016;23(6):267-74. doi: 10.3727/096504016X14549667333963.

Abstract

FKBP14 belongs to the family of FK506-binding proteins (FKBPs). Altered expression of FKBPs has been reported in several malignancies. This study aimed to reveal the expression profile of FKBP14 in ovarian cancer and evaluate whether FKBP14 is a molecular target for cancer therapy. We found that the FKBP14 mRNA level was significantly higher in ovarian cancer tissues than in normal tissues. FKBP14 expression was then knocked down in two ovarian cancer cell lines, SKOV3 and HO8910 cells, by a lentiviral short hairpin RNA (shRNA) delivery system. Reduced expression of FKBP14 markedly impaired the proliferative ability of ovarian cancer cells. Additionally, ovarian cancer cells infected with FKBP14 shRNA lentivirus tended to arrest in the G0/G1 phase and undergo apoptosis. Moreover, knockdown of FKBP14 induced cell apoptosis via increasing the ratio of Bax to Bcl-2. These results indicated that FKBP14 might be a diagnostic marker for ovarian cancer and could be a potential molecular target for the therapy of ovarian cancer.

MeSH terms

  • Adult
  • Aged
  • Apoptosis / genetics
  • Apoptosis Regulatory Proteins / genetics
  • Apoptosis Regulatory Proteins / metabolism
  • Cell Line, Tumor
  • Cell Proliferation
  • Down-Regulation
  • Female
  • G1 Phase Cell Cycle Checkpoints / genetics
  • Gene Expression
  • Gene Expression Regulation, Neoplastic*
  • Humans
  • Middle Aged
  • Neoplasm Grading
  • Neoplasm Staging
  • Ovarian Neoplasms / genetics*
  • Ovarian Neoplasms / pathology*
  • Peptidylprolyl Isomerase / genetics*
  • RNA Interference*

Substances

  • Apoptosis Regulatory Proteins
  • FKBP14 protein, human
  • Peptidylprolyl Isomerase