Dendritic cell toll-like receptors (TLRs) and the high-affinity immunoglobulin E (IgE) receptor (FcepsilonRI) may biologically interact with regard to atopic dermatitis (AD) development and, especially, severity. Our aim here was to test if such interaction can be detected on the genetic level. The combined effect of the TLR2 gene (TLR2) rs4696480 and the FcepsilonRI alpha-chain gene (FCER1A) rs2252226 and rs2251746 polymorphisms on the AD severity as measured by SCORAD was assessed. The FCER1A rs2252226 and TLR2 rs4696480 polymorphisms interacted with regard to SCORAD. Higher SCORAD was observed in patients being the TLR2 rs4696480 major homozygotes and carrying at the same time the FCER1A rs2252226 minor allele, compared to those characterized by (any other of) the remaining combined rs2252226 and rs4696480 genotypes. The observation of the epistatic effect of TLR2 and FCER1A genetic variants on SCORAD is in line with the involvement of the interaction TLRs-FcepsilonRI in the pathophysiology of AD.
- Potaczek, D. P.
- Przytulska-Szczerbik, A.
- Bazan-Socha, S.
- Nastalek, M.
- Wojas-Pelc, A.
- Okumura, K.
- Nishiyama, C.
- Jurczyszyn, A.
- Undas, A.
- Wypasek, E.
Keywords
- Atopic dermatitis
- Disease severity
- Fcer1a
- Scorad
- TLR2
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