New roles for glutathione: Modulators of bacterial virulence and pathogenesis.

New roles for glutathione: Modulators of bacterial virulence and pathogenesis.
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DOI:
10.1016/j.redox.2021.102012
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发表时间:
2021-08
期刊:
影响因子:
11.4
通讯作者:
Gan YH
Gan YH
中科院分区:
生物学1区
文献类型:
--
作者:
Ku JWK;Gan YH

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低分子量(LMW)硫醇含有对维持细胞抗氧化防御很重要的还原性巯基。除了LMW硫醇作为细菌氧化还原调节剂的传统作用外,谷胱甘肽(GSH)已被报道影响毒力和细菌发病机制。谷胱甘肽在毒力中的作用是多种多样的,包括激活毒力基因表达和促进最佳生物膜的形成。谷胱甘肽还可以转化为硫化氢(H2S),这对某些细菌的发病机制很重要。除了谷胱甘肽外,一些细菌还会产生其他影响细菌毒力的低分子量硫醇,如真菌硫醇和杆菌硫醇。我们讨论了这些新报道的LMW硫醇通过直接或间接调节宿主免疫系统调节细菌发病机制的功能。
Low molecular weight (LMW) thiols contain reducing sulfhydryl groups that are important for maintaining antioxidant defense in the cell. Aside from the traditional roles of LMW thiols as redox regulators in bacteria, glutathione (GSH) has been reported to affect virulence and bacterial pathogenesis. The role of GSH in virulence is diverse, including the activation of virulence gene expression and contributing to optimal biofilm formation. GSH can also be converted to hydrogen sulfide (H2S) which is important for the pathogenesis of certain bacteria. Besides GSH, some bacteria produce other LMW thiols such as mycothiol and bacillithiol that affect bacterial virulence. We discuss these newer reported functions of LMW thiols modulating bacterial pathogenesis either directly or indirectly and via modulation of the host immune system.
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