Streptococcus pyogenes upregulates arginine catabolism to exert its pathogenesis on the skin surface.

ABSTRACT: The arginine deiminase (ADI) pathway has been found in many kinds of bacteria and functions to supplement energy production and provide protection against acid stress. The Streptococcus pyogenes ADI pathway is upregulated upon exposure to various environmental stresses, including glucose starvation. However, there are several unclear points about the advantages to the organism for upregulating arginine catabolism. We show that the ADI pathway contributes to bacterial viability and pathogenesis under low-glucose conditions. S. pyogenes changes global gene expression, including upregulation of virulence genes, by catabolizing arginine. In a murine model of epicutaneous infection, S. pyogenes uses the ADI pathway to augment its pathogenicity by increasing the expression of virulence genes, in

SUBMITTER: Hirose Y 

PROVIDER: S-EPMC9214650 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature