Circular RNA circRNA_101996 promoted cervical cancer development by regulating miR-1236-3p/TRIM37 axis

Kaohsiung J Med Sci. 2021 Jul;37(7):547-561. doi: 10.1002/kjm2.12378. Epub 2021 Mar 17.

Abstract

Circular RNAs (circRNAs) appear to be significant modulators in various physiological processes. Recently, it is found that circRNA_101996 exerts important roles in various cancers. Our previous studies showed that circRNA_101996 promoted cervical cancer growth and metastasis by regulating miR-8075/TPX2. However, the potential regulatory role of circRNA_101996 in cervical cancer still needs further investigation. Our results in this study suggested that circRNA_101996 was over-expressed in cervical cancer patients. circRNA_101996 up-regulation remarkably assisted cell proliferation, cell cycle progression, and cell migration in cervical cancer, while circRNA_101996 knockdown exerted the inverse effects. The molecular investigations indicated that circRNA_101996 could increase the expression level of miR-1236-3p, tripartite motif-containing 37 (TRIM37), through binding to miR-1236-3p and reducing its expression. Moreover, in vivo results demonstrated that circRNA_101996 shRNA can function as a tumor suppressor through down-regulating TRIM37 in cervical cancer. In conclusion, our data indicated that circRNA_101996/miR-1236-3p/TRIM37 axis accelerated cervical cancer development, providing novel insights into cervical cancer diagnosis and treatment.

Keywords: cell cycle; cell proliferation; cervical cancer; circRNA_101996; miR-1236-3p.

MeSH terms

  • 3' Untranslated Regions
  • Adult
  • Aged
  • Cell Cycle
  • Cell Line, Tumor
  • Cell Movement
  • Cell Proliferation
  • Down-Regulation
  • Epithelium / metabolism
  • Female
  • Gene Expression Regulation, Neoplastic*
  • Humans
  • Lymphatic Metastasis
  • MicroRNAs / genetics*
  • Middle Aged
  • Neoplasm Metastasis
  • RNA / metabolism
  • RNA, Circular / genetics*
  • RNA, Small Interfering / metabolism
  • Tripartite Motif Proteins / biosynthesis*
  • Ubiquitin-Protein Ligases / biosynthesis*
  • Uterine Cervical Neoplasms / genetics*
  • Uterine Cervical Neoplasms / metabolism

Substances

  • 3' Untranslated Regions
  • MIRN1236 microRNA, human
  • MicroRNAs
  • RNA, Circular
  • RNA, Small Interfering
  • Tripartite Motif Proteins
  • RNA
  • TRIM37 protein, human
  • Ubiquitin-Protein Ligases