Abstract
The full range of receptors through which antimicrobial peptides exert their immunologic effects remains incompletely explored. Dong and colleagues identify Mgrpra2 as a G-coupled protein receptor on neutrophils, for which keratinocyte-derived Beta-defensins serve as key ligands. Binding of Mgrpra2 leads to release of neutrophil granules and Il-1β, which helps shape skin microbiome composition and augments cutaneous defense against bacterial infection.
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