期刊
IMMUNITY
卷 54, 期 11, 页码 2595-+出版社
CELL PRESS
DOI: 10.1016/j.immuni.2021.08.009
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资金
- US National Institutes of Health [T32AI053831, R01HL117181, HL140398, R01AI135803, R41AI124997]
- VA Office of Research and Development [I01BX004828]
- National Natural Science Foundation of China [81770024]
- Project of Department of Finance of Guangdong Province [20160907]
- Cytometry and Cell Sorting Core at Baylor College of Medicine
- CPRIT Core Facility Support Award [CPRIT-RP180672]
- NIH [CA125123, RR024574]
- Wellcome Trust [214229_Z_18_Z]
- National Institutes of Health [R37-DE022550]
- NIH Research at Guys and St. Thomas's NHS Foun-dation Trust
- King's College London Biomedical Research Centre [IS-BRC-1215-20006]
- Deutsche Forschungs-gemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy (Balance of the Microverse Cluster) - EXC 2051 [390713860]
- Collaborative Research Centre CRC/TR 124 FungiNet project C1
Research shows that Candida albicans activates platelets through the peptide toxin candidalysin to release the Wnt antagonist Dickkopf-1, promoting Th2 and Th17 cell responses, reducing lung fungal burdens, and preventing lethal pulmonary hemorrhage resulting from fungal lung invasion.
Fungal airway infection (airway mycosis) is an important cause of allergic airway diseases such as asthma, but the mechanisms by which fungi trigger asthmatic reactions are poorly understood. Here, we leverage wild-type and mutant Candida albicans to determine how this common fungus elicits characteristic Th2 and Th17 cell-dependent allergic airway disease in mice. We demonstrate that rather than proteinases that are essential virulence factors for molds, C. albicans instead promoted allergic airway disease through the peptide toxin candidalysin. Candidalysin activated platelets through the Von Willebrand factor (VWF) receptor GP1ba to release the Wnt antagonist Dickkopf-1 (Dkk-1) to drive Th2 and Th17 cell responses that correlated with reduced lung fungal burdens. Platelets simultaneously precluded lethal pulmonary hemorrhage resulting from fungal lung invasion. Thus, in addition to hemostasis, platelets promoted protection against C. albicans airway mycosis through an antifungal pathway involving candidalysin, GP1ba, and Dkk-1 that promotes Th2 and Th17 responses.
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