The novel lncRNA-9802/miR-1646 axis affects cell proliferation of DF-1 by regulating Bax/Bcl-2 signaling pathway

Res Vet Sci. 2023 Nov:164:105047. doi: 10.1016/j.rvsc.2023.105047. Epub 2023 Oct 12.

Abstract

Marek's disease (MD) is a severe infectious and immunosuppressive neoplastic condition that significantly impacts the global poultry industry. Investigating the role of non-coding RNA in pathogenic mechanisms of MD virus (MDV) offers valuable insights for the effective prevention and management of MD. A higher expression of the novel lncRNA-9802 can be found in spleen tissues of MDV-infected chickens from our prior research, and there is a potential association between lncRNA-9802 and cell proliferation. In this study, we further demonstrated that over-expression of lncRNA-9802 could promote the proliferation of DF-1 cells. It has been established that lncRNA-9802 mediated its effects by binding to miR-1646, and further modulated the expression of the Bax and Bcl-2 genes. Deciphering the role of the recently discovered MD-associated lncRNA-9802/miR-1646 axis provides valuable theoretical basis for decoding the molecular mechanisms underlying MDV pathogenesis.

Keywords: Cell proliferation; Marek's disease; lncRNA-9802; miR-1646.

MeSH terms

  • Animals
  • Cell Proliferation
  • Chickens
  • Herpesvirus 2, Gallid* / genetics
  • Marek Disease* / genetics
  • MicroRNAs* / genetics
  • MicroRNAs* / metabolism
  • RNA, Long Noncoding* / genetics
  • Signal Transduction
  • bcl-2-Associated X Protein

Substances

  • bcl-2-Associated X Protein
  • MicroRNAs
  • RNA, Long Noncoding