Protein Arginine Methyltransferase 1-mediated Histone H4R3 Dimethyl Asymmetric enhances Epidermal Growth Factor Receptor signaling to promote Peritoneal Fibrosis

  • 0Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.

Summary

This summary is machine-generated.

Protein arginine methyltransferase 1 (PRMT1) is elevated in peritoneal fibrosis (PF) patients. Inhibiting PRMT1 reduces fibrosis and epithelial-to-mesenchymal transition, suggesting PRMT1 as a potential therapeutic target for PF.

Area Of Science

  • Nephrology
  • Molecular Biology
  • Pathology

Background

  • Peritoneal fibrosis (PF) is a serious complication of peritoneal dialysis (PD) with limited treatment options.
  • Protein arginine methyltransferase 1 (PRMT1) is implicated in various diseases, but its role in PF is unclear.

Purpose Of The Study

  • To investigate the role of PRMT1 in the pathogenesis of peritoneal fibrosis.
  • To explore PRMT1 as a potential therapeutic target for PF.

Main Methods

  • Analysis of PRMT1 expression in human PD patients and murine models.
  • Genetic and pharmacological inhibition of PRMT1 in cellular and animal models.
  • RNA sequencing to identify PRMT1 targets and downstream pathways.

Main Results

  • PRMT1 is highly expressed in PD patients and correlates with fibrosis markers.
  • PRMT1 inhibition reduces extracellular matrix deposition and alleviates PF in mice.
  • PRMT1 inhibition mitigates TGF-β1-induced epithelial-to-mesenchymal transition (EMT) in vitro.
  • EGFR was identified as a PRMT1 target, with PRMT1 inhibition deactivating EGFR signaling.

Conclusions

  • PRMT1 plays a critical role in PF development by activating EGFR signaling.
  • Targeting PRMT1 offers a promising therapeutic strategy for peritoneal fibrosis.

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