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Epha2, an epithelial cell pattern recognition receptor for fungal β-glucans
- Publication Year :
- 2017
- Publisher :
- Cold Spring Harbor Laboratory, 2017.
-
Abstract
- Oral epithelial cells discriminate between pathogenic and non-pathogenic stimuli, and only induce an inflammatory response when they are exposed to high levels of a potentially harmful microorganism. The pattern recognition receptors (PRRs) in epithelial cells that mediate this differential response are poorly understood. Here, we demonstrate that the ephrin type-A receptor 2 (EphA2) is an oral epithelial cell PRR that binds to exposed β-glucans on the surface of the fungal pathogenCandida albicans. Binding ofC. albicansto EphA2 on oral epithelial cells activates signal transducer and activator of transcription 3 (Stat3) and mitogen-activated protein kinase signaling in an inoculum-dependent manner, and is required for induction of a pro-inflammatory and antifungal response. Inhibition of EphA2 in mice decreases IL-17 signaling during oropharyngeal candidiasis, resulting in increased oral fungal burden and fungal dissemination. Our study reveals that EphA2 functions as PRR for β-glucans that senses epithelial cell fungal burden and is required for the maximal mucosal inflammatory response toC. albicans.One Sentence Summary:EphA2 is a pattern recognition receptor that senses fungal β-glucans to induce an inflammatory response in oral epithelial cells.
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....42363420673760a825a24eca82317708
- Full Text :
- https://doi.org/10.1101/135434