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Speaking the host language: how Salmonella effector proteins manipulate the host.

Authors :
Pillay TD
Hettiarachchi SU
Gan J
Diaz-Del-Olmo I
Yu XJ
Muench JH
Thurston TLM
Pearson JS
Source :
Microbiology (Reading, England) [Microbiology (Reading)] 2023 Jun; Vol. 169 (6).
Publication Year :
2023

Abstract

Salmonella injects over 40 virulence factors, termed effectors, into host cells to subvert diverse host cellular processes. Of these 40 Salmonella effectors, at least 25 have been described as mediating eukaryotic-like, biochemical post-translational modifications (PTMs) of host proteins, altering the outcome of infection. The downstream changes mediated by an effector's enzymatic activity range from highly specific to multifunctional, and altogether their combined action impacts the function of an impressive array of host cellular processes, including signal transduction, membrane trafficking, and both innate and adaptive immune responses. Salmonella and related Gram-negative pathogens have been a rich resource for the discovery of unique enzymatic activities, expanding our understanding of host signalling networks, bacterial pathogenesis as well as basic biochemistry. In this review, we provide an up-to-date assessment of host manipulation mediated by the Salmonella type III secretion system injectosome, exploring the cellular effects of diverse effector activities with a particular focus on PTMs and the implications for infection outcomes. We also highlight activities and functions of numerous effectors that remain poorly characterized.

Details

Language :
English
ISSN :
1465-2080
Volume :
169
Issue :
6
Database :
MEDLINE
Journal :
Microbiology (Reading, England)
Publication Type :
Academic Journal
Accession number :
37279149
Full Text :
https://doi.org/10.1099/mic.0.001342