Nature Communications (Mar 2023)

Polynucleotide phosphorylase protects against renal tubular injury via blocking mt-dsRNA-PKR-eIF2α axis

  • Yujie Zhu,
  • Mingchao Zhang,
  • Weiran Wang,
  • Shuang Qu,
  • Minghui Liu,
  • Weiwei Rong,
  • Wenwen Yang,
  • Hongwei Liang,
  • Caihong Zeng,
  • Xiaodong Zhu,
  • Limin Li,
  • Zhihong Liu,
  • Ke Zen

DOI
https://doi.org/10.1038/s41467-023-36664-0
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 13

Abstract

Read online

Renal tubular atrophy is a hallmark of chronic kidney disease. The study by Zhu et al. reveals the protective role of tubular polynucleotide phosphorylase (PNPT1) against renal atrophy by blocking the leakage of mitochondrial dsRNAs into cytoplasm where they activate the PKReIF2α axis and terminate translation.