Lactate promotes intracellular replication and systemic infection via driving macrophage M2 polarization.

Microbiol Spectr

The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin, China.

Published: December 2023


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Article Abstract

The important enteropathogen can cause lethal systemic infection survival and replication in host macrophages. Lactate represents an abundant intracellular metabolite during bacterial infection, which can also induce macrophage M2 polarization. In this study, we found that macrophage-derived lactate promotes the intracellular replication and systemic infection of . During infection, lactate the type III secretion system effector SteE promotes macrophage M2 polarization, and the induction of macrophage M2 polarization by lactate is responsible for lactate-mediated growth promotion. This study highlights the complex interactions between and macrophages and provides an additional perspective on host-pathogen crosstalk at the metabolic interface.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10715217PMC
http://dx.doi.org/10.1128/spectrum.02253-23DOI Listing

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