| Literature DB >> 18084290 |
Yoshihiro Onouchi1, Tomohiko Gunji, Jane C Burns, Chisato Shimizu, Jane W Newburger, Mayumi Yashiro, Yoshikazu Nakamura, Hiroshi Yanagawa, Keiko Wakui, Yoshimitsu Fukushima, Fumio Kishi, Kunihiro Hamamoto, Masaru Terai, Yoshitake Sato, Kazunobu Ouchi, Tsutomu Saji, Akiyoshi Nariai, Yoichi Kaburagi, Tetsushi Yoshikawa, Kyoko Suzuki, Takeo Tanaka, Toshiro Nagai, Hideo Cho, Akihiro Fujino, Akihiro Sekine, Reiichiro Nakamichi, Tatsuhiko Tsunoda, Tomisaku Kawasaki, Yusuke Nakamura, Akira Hata.
Abstract
Kawasaki disease is a pediatric systemic vasculitis of unknown etiology for which a genetic influence is suspected. We identified a functional SNP (itpkc_3) in the inositol 1,4,5-trisphosphate 3-kinase C (ITPKC) gene on chromosome 19q13.2 that is significantly associated with Kawasaki disease susceptibility and also with an increased risk of coronary artery lesions in both Japanese and US children. Transfection experiments showed that the C allele of itpkc_3 reduces splicing efficiency of the ITPKC mRNA. ITPKC acts as a negative regulator of T-cell activation through the Ca2+/NFAT signaling pathway, and the C allele may contribute to immune hyper-reactivity in Kawasaki disease. This finding provides new insights into the mechanisms of immune activation in Kawasaki disease and emphasizes the importance of activated T cells in the pathogenesis of this vasculitis.Entities:
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Year: 2007 PMID： 18084290 PMCID： PMC2876982 DOI： 10.1038/ng.2007.59
Source DB: PubMed Journal: Nat Genet ISSN： 1061-4036 Impact factor: 38.330