The Role of in the Pathogenicity of Avian Pathogenic .

Vet Sci

The Third Clinical Medical College, Nanjing University of Chinese Medicine, 138 Xianlin Rd, Nanjing 210023, China.

Published: August 2025


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Article Abstract

The genotoxin colibactin, a complex secondary metabolite, targets eukaryotic cell cycle machinery and contributes to neonatal sepsis and meningitis. Avian pathogenic (APEC) XM, which produces this genotoxin, is an agent of poultry diseases with zoonotic potential. In this study, we confirmed that was necessary for the APEC XM strain to produce colibactin, but it did not affect the growth, adhesion, or invasion of cells. Deletion of substantially diminished both virulence and systemic dissemination, but it also changed the gene expression of the antiserum survival factor, adherence and invasion, iron acquisition genes, and the secretion system. In conclusion, is necessary for the synthesis of the genotoxin colibactin and affects the development of APEC meningitis in mice.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12390127PMC
http://dx.doi.org/10.3390/vetsci12080727DOI Listing

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