CDB15:0000433 DEFB4A — TLR4
Experimentally validated in Mouse; Orthology-inferred in Human, Rat, Chicken, Macaque, Pig, Cow, Chimp
Title
Journal:; Year Published:
Abstract
Toll-like receptor 4-dependent activation of dendritic cells by beta-defensin 2.
Science, 2002; PubMed, Mus Musculus Defb3 — Mus Musculus Tlr4
ABSTRACT: beta-Defensins are small antimicrobial peptides of the innate immune system produced in response to microbial infection of mucosal tissue and skin. We demonstrate that murine beta-defensin 2 (mDF2beta) acts directly on immature dendritic cells as an endogenous ligand for Toll-like receptor 4 (TLR-4), inducing up-regulation of costimulatory molecules and dendritic cell maturation. These events, in turn, trigger robust, type 1 polarized adaptive immune responses in vivo, suggesting that mDF2beta may play an important role in immunosurveillance against pathogens and, possibly, self antigens or tumor antigens.