期刊
PATHOGENS
卷 10, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/pathogens10020108
关键词
Legionella pneumophila; metaeffector; effector
类别
资金
- NIH NIGMS COBRE Research Project Award [P20GM130448]
- U.S. Department of Agriculture Research Service Project [3020-43440-001-00D]
- Kansas State University
This review discusses the function of metaeffectors in Legionella pneumophila, which regulate other effectors essential for pathogen replication. While there are at least a dozen known metaeffectors in L. pneumophila, their exact mechanisms of promoting virulence remain largely unknown. The review also highlights challenges in identifying and understanding the contribution of metaeffectors to bacterial pathogenesis.
Many bacterial pathogens utilize translocated virulence factors called effectors to successfully infect their host. Within the host cell, effector proteins facilitate pathogen replication through subversion of host cell targets and processes. Legionella pneumophila is a Gram-negative intracellular bacterial pathogen that relies on hundreds of translocated effectors to replicate within host phagocytes. Within this large arsenal of translocated effectors is a unique subset of effectors called metaeffectors, which target and regulate other effectors. At least one dozen metaeffectors are encoded by L. pneumophila; however, mechanisms by which they promote virulence are largely unknown. This review details current knowledge of L pneumophila metaeffector function, challenges associated with their identification, and potential avenues to reveal the contribution of metaeffectors to bacterial pathogenesis.
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