几丁质合酶在人类致病真菌中的研究进展

Progress in chitin synthases of human pathogenic fungi

摘要:

抑制真菌细胞壁的合成常作为防治真菌感染的安全有效手段。几丁质是真菌细胞壁及隔膜的重要结构成分，几丁质合酶是催化几丁质合成的关键酶。真菌细胞中几丁质合酶家族的不同成员在调控几丁质的合成中存在着差异，因此产生不同的生物学效应。本文通过综述几丁质合酶在人体三大条件致病真菌白色念珠菌、烟曲霉、新生隐球菌中的研究进展，分析了几丁质合酶对真菌致病性影响的机制，总结了几丁质合酶调控真菌细胞增殖、形态转换、病原菌与宿主的相互作用和细胞壁损伤诱导的补偿效应，展望了抗真菌感染的新策略及关于真菌几丁质合酶的未来研究方向。

Abstract:

Inhibiting the synthesis of fungal cell wall is a safe and effective strategy for preventing and treating fungal infections. Chitin synthases are the key enzymes to catalyze the synthesis of chitin, an important structural component of fungal cell wall and septa. The roles of chitin synthases vary in regulating the synthesis of fungal chitin. This review outlines the roles of chitin synthases in regulating fungal cell proliferation, morphogenesis, interactions with hosts, and compensatory effect induced by cell wall damage in the three major pathogenic fungal species: Candida albicans, Aspergillus fumigatus, and Cryptococcus neoformans, aiming to understand the importance of chitin synthases in fungal pathogenicity. Furthermore, this paper proposes a new antifungal strategy and the future research directions about the chitin synthases of fungi.