Circular RNA hsa_circ_0007364 increases cervical cancer progression through activating methionine adenosyltransferase II alpha (MAT2A) expression by restraining microRNA-101-5p

Bioengineered. 2020 Dec;11(1):1269-1279. doi: 10.1080/21655979.2020.1832343.

Abstract

Emerging evidence suggested that circular RNAs (circRNAs) play critical roles in cervical cancer (CC) progression. However, the roles and molecular mechanisms of hsa_circ_0007364 in the tumorigenesis of CC remain unclear. In the present study, we used bioinformatics analysis and a series of experimental analysis to characterize a novel circRNA, hsa_circ_0007364 was up-regulated and associated with advanced clinical features in CC patients. Hsa_circ_0007364 inhibition notably suppressed the proliferation and invasion abilities of CC cells in vitro and reduced tumor growth in vivo. Moreover, hsa_circ_0007364 was uncovered to sponge miR-101-5p. Additionally, methionine adenosyltransferase II alpha (MAT2A) was verified as a target gene of miR-101-5p, and its downregulation reversed the inhibitory effects of hsa_circ_0007364 knockdown on CC progression. Therefore, we suggested that hsa_circ_0007364 might serve as an oncogenic circRNA in CC progression by regulating the miR-101-5p/MAT2A axis, which provides a potential therapeutic target to the treatment. Research highlights hsa_circ_0007364 was upregulated in CC hsa_circ_0007364 promoted CC cell progression hsa_circ_0007364/miR-101-5p/MAT2A axis in CC.

Keywords: Cervical cancer; MAT2A; hsa_circ_0007364; miR-101-5p.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line
  • Cell Proliferation / drug effects
  • Cell Proliferation / genetics
  • Dactinomycin / pharmacology
  • Exoribonucleases / pharmacology
  • Female
  • Gene Expression Regulation, Neoplastic / genetics
  • Gene Expression Regulation, Neoplastic / physiology
  • HeLa Cells
  • Humans
  • Immunoprecipitation
  • Methionine Adenosyltransferase / genetics
  • Methionine Adenosyltransferase / metabolism*
  • Mice
  • Mice, Nude
  • MicroRNAs / genetics
  • MicroRNAs / metabolism
  • Middle Aged
  • RNA, Circular / genetics
  • RNA, Circular / metabolism*
  • Uterine Cervical Neoplasms / genetics
  • Uterine Cervical Neoplasms / metabolism*

Substances

  • MicroRNAs
  • RNA, Circular
  • Dactinomycin
  • Methionine Adenosyltransferase
  • Exoribonucleases
  • ribonuclease R

Grants and funding

This work was supported by the Important Weak Subject Construction Project of Pudong Health and Family Planning Commission of Shanghai [PWZbr2017-18].