Abstract
The fungal cell wall is an essential organelle that maintains cellular morphology and protects the fungus from environmental insults. For fungal pathogens such as Candida albicans, it provides a degree of protection against attack by host immune defences. However, the cell wall also presents key epitopes that trigger host immunity and attractive targets for antifungal drugs. Rather than being a rigid shield, it has become clear that the fungal cell wall is an elastic organelle that permits rapid changes in cell volume and the transit of large liposomal particles such as extracellular vesicles. The fungal cell wall is also flexible in that it adapts to local environmental inputs, thereby enhancing the fitness of the fungus in these microenvironments. Recent evidence indicates that this cell wall adaptation affects host-fungus interactions by altering the exposure of major cell wall epitopes that are recognised by innate immune cells. Therefore, we discuss the impact of environmental adaptation upon fungal cell wall structure, and how this affects immune recognition, focussing on C. albicans and drawing parallels with other fungal pathogens.
Delma S. Childers, Gabriela M. Avelar, Judith M. Bain—These authors contributed equally to this work.
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Acknowledgements
This work was funded by a programme grant from the UK Medical Research Council [www.mrc.ac.uk: MR/M026663/1], and by PhD studentships from the University of Aberdeen to AP, DL. The work was also supported by the Medical Research Council Centre for Medical Mycology (MR/N006364/1) and by the Wellcome Trust [www.wellcome.ac.uk: 097377]. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.
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Childers, D.S. et al. (2019). Impact of the Environment upon the Candida albicans Cell Wall and Resultant Effects upon Immune Surveillance. In: Latgé, JP. (eds) The Fungal Cell Wall . Current Topics in Microbiology and Immunology, vol 425. Springer, Cham. https://doi.org/10.1007/82_2019_182
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