Hydrogenase: the next antibiotic target?

Hydrogenase: the next antibiotic target?
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氢化酶:下一个抗生素目标?

DOI:
10.1042/cs20110396
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发表时间:
2012-06
期刊:
影响因子:
6
通讯作者:
Qingyu Xiu
Qingyu Xiu
中科院分区:
医学2区
文献类型:
--
作者:
Wei Nei;Haili Chen;Jiquan Chen;Zheng Fang;Hao Tang;Qingyu Xiu

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由于对当前抗生素的耐药性以及繁殖和非繁殖细菌的共存,控制传染病的斗争变得越来越困难,这使得发现新的抗生素靶标和开发新的抗生素成为紧迫的任务。氢化酶存在于古生菌和细菌的微生物中,可以催化氢气的可逆氧化(H2 Particip2 H +2e),并在微生物的生存中发挥多效性作用。研究表明,H2是一种有效的抗氧化剂,可以选择性地中和OH·(羟基自由基)。然而,OH·被认为是杀菌抗生素和专职吞噬细胞杀死细菌的机制之一。因此,我们有足够的理由推测,氢酶和H2有利于增加细菌的毒力和抗生素耐药性,氢酶抑制剂将有助于控制细菌感染。
The struggle to control infectious diseases has become increasingly difficult due to resistance to current antibiotics and the co-existence of multiplying and non-multiplying bacteria, which makes it an urgent task to discover new antibiotic targets and to develop new antibiotics. Hydrogenases are found in micro-organisms belonging to the archaea and bacteria domains, which can catalyse the reversible oxidation of hydrogen gas (H2↔2H⁺ +2e) and play pleiotropic roles in microbial survival. Studies have shown that H2 is a potent antioxidant and can selectively neutralize OH• (hydroxyl radicals). OH•, however, has been implicated as one of the mechanisms whereby bactericidal antibiotics and professional phagocytes kill bacteria. Thus we have enough reason to speculate that hydrogenases and H2 are conducive to increasing the virulence and antibiotic resistance of bacteria, and hydrogenase inhibitors would help control bacterial infection.
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