Peroxidasins: novel players in tissue genesis

Trends Biochem Sci. 2014 Jul;39(7):305-7. doi: 10.1016/j.tibs.2014.05.005. Epub 2014 Jun 9.

Abstract

Stabilization of extracellular matrix by protein crosslinking is a universal and essential process in multicellular organisms. Recent findings revealed that peroxidasin, a unique heme-peroxidase, produces hypohalides to support matrix synthesis. Unexpectedly, the highly reactive and potentially damaging hypohalides mediate the formation of sulfilimine bonds between adjacent collagen IV protomers. This crosslink is a fundamental feature of basal membranes, defining peroxidasin-dependent oxidant generation and sulfilimine crosslink formation as an elemental mechanism of tissue biogenesis.

Keywords: ROS; collagen IV; extracellular matrix; peroxidase; peroxidasin; sulfilimine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Basement Membrane / metabolism*
  • Collagen Type IV / chemistry
  • Cross-Linking Reagents / metabolism*
  • Extracellular Matrix Proteins / metabolism*
  • Humans
  • Peroxidase / metabolism*
  • Peroxidasin
  • Sulfur Compounds / chemistry

Substances

  • Collagen Type IV
  • Cross-Linking Reagents
  • Extracellular Matrix Proteins
  • Sulfur Compounds
  • Peroxidase