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

Yujiro Hirose, Masaya Yamaguchi, Tomoko Sumitomo, Masanobu Nakata, Tomoki Hanada, Daisuke Okuzaki, Daisuke Motooka, Yasushi Mori, Hiroshi Kawasaki, Alison Coady, Satoshi Uchiyama, Masanobu Hiraoka, Raymond H. Zurich, Masayuki Amagai, Victor Nizet, Shigetada Kawabata

研究成果: Article査読

3 被引用数 (Scopus)

抄録

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, including those encoding the exotoxins. We also find that arginine from stratum-corneum-derived filaggrin is a key substrate for the ADI pathway. In summary, arginine is a nutrient source that promotes the pathogenicity of S. pyogenes on the skin.

本文言語English
論文番号108924
ジャーナルCell Reports
34
13
DOI
出版ステータスPublished - 2021 3月 30

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学(全般)

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