CHIP induces ubiquitination and degradation of HMGB1 to regulate glycolysis in ovarian endometriosis

Cell Mol Life Sci. 2022 Dec 19;80(1):13. doi: 10.1007/s00018-022-04637-z.

Abstract

Ovarian endometriosis is a common gynecological condition that can cause infertility in women of childbearing age. However, the pathogenesis is still unknown. We demonstrate that the carboxyl terminus of Hsc70-interacting protein (CHIP) is a negative regulator in the development of endometriosis and reduces HMGB1 expression in endometriotic cells. Meanwhile, CHIP interacts with HMGB1 and promotes its ubiquitinated degradation, thereby inhibiting aerobic glycolysis and the progression of endometriosis. Furthermore, the CHIP agonist YL-109 effectively suppresses the growth of ectopic endometrium in endometriosis mouse model, which could be a potential therapeutic approach for endometriosis. In conclusion, our data suggest that CHIP may inhibit the development of endometriosis by suppressing the HMGB1-related glycolysis.

Keywords: CHIP; Endometriosis; Glycolysis; HMGB1; Protein modification; Ubiquitination.

MeSH terms

  • Animals
  • Endometriosis* / pathology
  • Female
  • Glycolysis
  • HMGB1 Protein* / metabolism
  • Humans
  • Mice
  • Ubiquitin-Protein Ligases* / metabolism
  • Ubiquitination

Substances

  • HMGB1 Protein
  • STUB1 protein, human
  • Ubiquitin-Protein Ligases
  • HMGB1 protein, human