金属与新生隐球菌的细胞表面。

Metals and the cell surface of Cryptococcus neoformans.

机构信息

Michael Smith Laboratories, Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.

Department of Systems Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea.

出版信息

Curr Opin Microbiol. 2023 Aug;74:102331. doi: 10.1016/j.mib.2023.102331. Epub 2023 May 29.

Abstract

Recent studies in pathogenic yeasts reinforce our appreciation of the influence of metal homeostasis on the fungal cell surface. To illustrate this influence, we focus on recent studies on Cryptococcus neoformans, a fungal pathogen with a complex surface of a cell wall with embedded melanin and an attached polysaccharide capsule. Copper and iron are essential yet toxic metals, and current efforts demonstrate the importance of these metals for modulating the surface structure of C. neoformans cells in ways that contribute to fungal-host interactions during disease in vertebrate hosts. In this review, we briefly summarize mechanisms of acquisition and regulation for copper and iron, and then discuss recent insights into the connections between the metals and the cell surface.

摘要

近年来对病原性酵母菌的研究加强了我们对金属稳态对真菌细胞表面影响的认识。为了说明这种影响,我们重点介绍了对新型隐球菌的最新研究,新型隐球菌是一种具有复杂细胞壁表面的真菌病原体,其中嵌入了黑色素和附着的多糖荚膜。铜和铁是必需但有毒的金属,目前的研究表明这些金属对于调节新型隐球菌细胞表面结构的重要性,这有助于在脊椎动物宿主的疾病中真菌与宿主的相互作用。在这篇综述中,我们简要总结了铜和铁的获取和调节机制,然后讨论了金属与细胞表面之间联系的最新见解。

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