Silencing circular RNA hsa_circ_009755 promotes growth and metastasis of oral squamous cell carcinoma

Genomics. 2020 Nov;112(6):5275-5281. doi: 10.1016/j.ygeno.2020.09.035. Epub 2020 Sep 18.

Abstract

Objective: Oral squamous cell carcinoma (OSCC) is a common and rampant malignancy of the head and neck. However, its pathogenesis remains unclear. In this study, we have investigated the effects of circular RNA hsa_circ_009755 on proliferation, migration, invasion, and apoptosis in OSCC cells in vitro.

Method: Eight pairs of OSCC and normal adjacent tissues were selected to detect the differential expression of circRNAs by high-throughput sequencing. circRNA hsa_circ_009755 expression was determined by quantitative real-time polymerase chain reaction in OSCC tissues and cell lines. CCK-8, wound healing, Transwell, and flow cytometry assays were used to determine OSCC cell proliferation, migration, invasion, and apoptosis, respectively.

Result: The expression of hsa_circ_009755 was low in OSCC tissues and three OSCC cell lines. Silencing hsa_circ_009755 significantly enhanced the proliferation, migration, and invasion and suppressed the apoptosis of OSCC cells.

Conclusion: Therefore, hsa_circ_009755 may be important in the tumorigenesis of OSCC.

Keywords: Circular RNA; Growth; Metastasis; Oral squamous cell carcinoma; hsa_circ_009755.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis
  • Cell Movement
  • Cell Proliferation
  • Gene Silencing
  • Humans
  • MicroRNAs / metabolism
  • Mouth Neoplasms / genetics*
  • Mouth Neoplasms / metabolism
  • Mouth Neoplasms / pathology*
  • Neoplasm Invasiveness
  • RNA, Circular / genetics
  • RNA, Circular / metabolism
  • RNA, Circular / physiology*
  • Squamous Cell Carcinoma of Head and Neck / genetics*
  • Squamous Cell Carcinoma of Head and Neck / metabolism
  • Squamous Cell Carcinoma of Head and Neck / pathology*
  • Squamous Cell Carcinoma of Head and Neck / secondary

Substances

  • MicroRNAs
  • RNA, Circular