文献类型： 外文期刊
作者： Wang, Mengying 1 ; Wang, Yuwei 5 ; Wang, Mingshu 1 ; Liu, Mafeng 1 ; Cheng, Anchun 1 ;
作者机构： 1.Minist Educ Peoples Republ China, Engn Res Ctr Southwest Anim Dis Prevent & Control, Chengdu 611130, Peoples R China
2.Key Lab Anim Dis & Human Hlth, Chengdu 611130, Sichuan, Peoples R China
3.Int Joint Res Ctr Anim Dis Prevent & Control, Chengdu 611130, Sichuan, Peoples R China
4.Sichuan Agr Univ, Coll Vet Med, Res Ctr Avian Dis, Chengdu 611130, Peoples R China
5.Mianyang Acad Agr Sci, Inst Livestock Res, Mianyang 621023, Peoples R China
关键词： Heme utilization; Heme tolerance; Gram -positive bacteria
期刊名称：HELIYON （ 影响因子：4.0； 五年影响因子：4.1 ）
ISSN：
年卷期： 2023 年 9 卷 7 期
页码：
收录情况： SCI
摘要： As a nutrient, heme is important for various cellular processes of organism. Bacteria can obtain heme via heme biosynthesis or/and uptake of exogenous heme from the host. On the other side, absorption of excess heme is cytotoxic to bacteria. Thus, bacteria have developed systems to relieve heme toxicity and contribute to the maintenance of heme homeostasis. In the past decades, the mechanisms underlying heme acquisition and tolerance have been well studied in Gram-positive model bacteria, such as Staphylococcus, Streptococcus and other Gram-positive bacteria. Here, we review the elaborate mechanisms by which these bacteria acquire heme and resist heme toxicity. Since both the heme utilization system and the heme tolerance system contribute to bacterial virulence, this review is not only helpful for a comprehensive understanding of the heme homeostasis mechanism in Gram-positive bacteria but also provides a theoretical basis for the development of antimicrobial agents.
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