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J. Fungi 2017, 3(4), 52; doi:10.3390/jof3040052

The Role of IL-17 in Protection against Mucosal Candida Infections

Department of Biological Sciences, The University of Toledo, 2801 West Bancroft St., Toledo, OH 43606, USA
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Received: 19 July 2017 / Revised: 7 September 2017 / Accepted: 14 September 2017 / Published: 27 September 2017
(This article belongs to the Special Issue Host–Fungus Interactions)
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Abstract

Interleukin-17 (IL-17) is a proinflammatory cytokine produced by adaptive CD4+ T helper cells and innate lymphocytes, such as γδ-T cells and TCRβ+ “natural” Th17 cells. IL-17 activates signaling through the IL-17 receptor, which induces other proinflammatory cytokines, antimicrobial peptides and neutrophil chemokines that are important for antifungal activity. The importance of IL-17 in protective antifungal immunity is evident in mice and humans, where various genetic defects related to the IL-17-signaling pathway render them highly susceptible to forms of candidiasis such oropharyngeal candidiasis (OPC) or more broadly chronic mucocutaneous candidiasis (CMC), both caused mainly by the opportunistic fungal pathogen Candida albicans. OPC is common in infants and the elderly, HIV/AIDS and patients receiving chemotherapy and/or radiotherapy for head and neck cancers. This review focuses on the role of IL-17 in protection against candidiasis, and includes a brief discussion of non-Candida albicans fungal infections, as well as how therapeutic interventions blocking IL-17-related components can affect antifungal immunity. View Full-Text
Keywords: C. albicans; mucosal fungal infections; oropharyngeal candidiasis; chronic mucocutaneous candidiasis C. albicans; mucosal fungal infections; oropharyngeal candidiasis; chronic mucocutaneous candidiasis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mengesha, B.G.; Conti, H.R. The Role of IL-17 in Protection against Mucosal Candida Infections. J. Fungi 2017, 3, 52.

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