dsRNA-mediated innate immunity of epidermal keratinocytes

MIP-1α, a CC chemokine, recruits monocytes, natural killer cells, lymphocytes, and neutrophils, and plays a critical role in viral infection. Since, the lesional epidermis of herpes zoster expressed MIP-1α, we hypothesized that keratinocytes produce MIP-1α in response to virus-associated dsRNA via TLR3. To investigate this, we examined cultured human keratinocytes for MIP-1α production induced by poly(I:C), a TLR3 ligand. Poly(I:C) treatment...