Recent advances in genetic systems in obligate intracellular human-pathogenic bacteria

Frontiers in Cellular and Infection Microbiology

Cellular and Infection Microbiology

Paul A. Beare¹  Derek J. Fisher² 

[1] Rocky Mountain Laboratory, National Institute of Health, Hamilton, MT, United States;School of Biological Sciences, Southern Illinois University, Carbondale, IL, United States;

关键词: Chlamydia;    Coxiella;    Rickettsia;    Anaplasma;    Ehrlichia;    Orientia;    genetics;    obligate;   

DOI  :  10.3389/fcimb.2023.1202245

 received in 2023-04-07, accepted in 2023-05-22,  发布年份 2023

来源: Frontiers

【 摘 要 】

The ability to genetically manipulate a pathogen is fundamental to discovering factors governing host–pathogen interactions at the molecular level and is critical for devising treatment and prevention strategies. While the genetic “toolbox” for many important bacterial pathogens is extensive, approaches for modifying obligate intracellular bacterial pathogens were classically limited due in part to the uniqueness of their obligatory lifestyles. Many researchers have confronted these challenges over the past two and a half decades leading to the development of multiple approaches to construct plasmid-bearing recombinant strains and chromosomal gene inactivation and deletion mutants, along with gene-silencing methods enabling the study of essential genes. This review will highlight seminal genetic achievements and recent developments (past 5 years) for Anaplasma spp., Rickettsia spp., Chlamydia spp., and Coxiella burnetii including progress being made for the still intractable Orientia tsutsugamushi. Alongside commentary of the strengths and weaknesses of the various approaches, future research directions will be discussed to include methods for C. burnetii that should have utility in the other obligate intracellular bacteria. Collectively, the future appears bright for unraveling the molecular pathogenic mechanisms of these significant pathogens.

【 授权许可】

Unknown   
Copyright © 2023 Fisher and Beare