SNHG1, a KLF4-upregulated gene, promotes glioma cell survival and tumorigenesis under endoplasmic reticulum stress by upregulating BIRC3 expression

J Cell Mol Med. 2023 Jul;27(13):1806-1819. doi: 10.1111/jcmm.17779. Epub 2023 May 26.


Increasing evidence indicates that long noncoding RNAs (lncRNAs) play crucial roles in the resistance to endoplasmic reticulum (ER) stress in many cancers. However, ER stress-regulated lncRNAs are still unknown in glioma. In the present study, we investigated the altered lncRNAs upon ER stress in glioma and found that small nucleolar RNA host gene 1 (SNHG1) was markedly increased in response to ER stress. Increased SNHG1 suppressed ER stress-induced apoptosis and promoted tumorigenesis in vitro and in vivo. Further mechanistic studies indicated that SNHG1 elevated BIRC3 mRNA stability and enhanced BIRC3 expression. We also found that KLF4 transcriptionally upregulated SNHG1 expression and contributed to the ER stress-induced SNHG1 increase. Collectively, the present findings indicated that SNHG1 is a KLF4-regulated lncRNA that suppresses ER stress-induced apoptosis and facilitates gliomagenesis by elevating BIRC3 expression.

Keywords: ER stress; SNHG1; cell apoptosis; glioma.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis / genetics
  • Baculoviral IAP Repeat-Containing 3 Protein / genetics
  • Baculoviral IAP Repeat-Containing 3 Protein / metabolism
  • Carcinogenesis / genetics
  • Cell Line, Tumor
  • Cell Proliferation / genetics
  • Cell Survival
  • Cell Transformation, Neoplastic / genetics
  • Gene Expression Regulation, Neoplastic
  • Glioma* / genetics
  • Humans
  • MicroRNAs* / genetics
  • RNA, Long Noncoding* / metabolism


  • RNA, Long Noncoding
  • MicroRNAs
  • BIRC3 protein, human
  • Baculoviral IAP Repeat-Containing 3 Protein