数字农科院2.0

Battling Salmonella enteritidis infections: integrating proteomics and in vivo assessment of Galla Chinensis tannic acid

文献类型: 外文期刊

作者: Yuzhang Yan;Xiaohong Zheng;Xueqin Wu;Ling Wang;Jiongjie He;Baocheng Hao;Tingjun Hu;Shengyi Wang;Dongan Cui

作者机构:

关键词: Antibacterial activity;Galla Chinensis tannic acid;Proteomics;Salmonella enterica serovar Enteritidis

期刊名称: BMC Veterinary Research

ISSN: 1746-6148

年卷期: 2024 年 20 卷 1 期

页码:

收录情况: SCIE(2024版)

摘要: Salmonella infections pose a significant threat to animal and human health. Phytochemicals present a potential alternative treatment. Galla chinensis tannic acid (GCTA), a hydrolyzable polyphenolic compound, inhibits bacterial growth and demonstrates potential as an alternative or supplement to antibiotics to prevent Salmonella infections. However, little is known about the antimicrobial mechanism of GCTA against Salmonella. Here, we revealed 456 differentially expressed proteins upon GCTA treatment, impacting pathways related to DNA replication, repair, genomic stability, cell wall biogenesis, and lipid metabolism using TMT-labeled proteomic analysis. TEM analysis suggested altered bacterial morphology and structure post-treatment. A Salmonella-infected-mouse model indicated that GCTA administration improved inflammatory markers, alleviated intestinal histopathological alterations, and reduced Salmonella enterica serovar Enteritidis (S. Enteritidis) colonization in the liver and spleen of Salmonella-infected mice. The LD50 of GCTA was 4100 mg/kg with an oral single dose, vastly exceeding the therapeutic dose. Thus, GCTA exhibited antibacterial and anti-infective activity against S. Enteritidis. Our results provided insight into the molecular mechanisms of these antibacterial effects, and highlights the potential of GCTA as an alternative to antibiotics.

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