國家衛生研究院 NHRI:Item 3990099045/2344
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/2344


    Title: Genetic polymorphisms of the HCR gene and a genomic segment in close proximity to HLA-C are associated with patients with psoriasis in Taiwan
    Authors: Chang, YT;Shiao, YM;Chin, PJ;Liu, YL;Chou, FC;Wu, S;Lin, YF;Li, LH;Lin, MW;Liu, HN;Tsai, SF
    Contributors: Division of Molecular and Genomic Medicine
    Abstract: Background Although psoriasis vulgaris (PV) is strongly associated with HLA-Cw*0602, it has been proposed that the association of Cw*0602 is due to linkage disequilibrium and that other nearby genes are involved in PV susceptibility. The alpha-helix coiled-coil rod homologue (HCR) gene, located 110 kb telomeric to the HLA-C locus, is presumed to be one of the PV candidate genes. Recently, a 10-kb genomic segment, centromeric to HLA-C, defined by two new single nucleotide polymorphisms (SNPs) n.7*A and n.9*C, was found to have a stronger association with psoriasis than the HCR gene. Until now, no study of the association of the HCR gene, SNPs n. 7, and n. 9 has been conducted on Chinese patients with psoriasis. Objectives We aimed to determine whether the genetic polymorphisms of the HCR gene, SNPs n.7*A, and n.9*C were associated with an increased risk of psoriasis in Chinese patients. Methods Using direct sequencing of the HCR gene and the genomic region containing SNPs n. 7 and n.9, we investigated the HCR gene, SNPs n.7, and n.9 for disease association in 115 Chinese patients with psoriasis and 103 control subjects. The HCR SNPs were confirmed by denaturing high performance liquid chromatography. Genotyping for HLA-Cw*0602 was also carried out using sequence-based typing. Results We observed a different allelic distribution between patient and control groups at nucleotide positions 386, 404, 1802 and 2406 of the HCR gene, and SNPs n.7, and n.9. The associations were much stronger in early onset PV patients (for HCR-386*T and HCR-404*T, odds ratio = 5.63, P-c < 0.0001). The HLA-Cw*0602 also displayed a similar association with PV (odds ratio = 5.4, P-c < 0.0001). Moreover, SNP n.7*A, SNP n.9*C, Cw*0602, HCR-386*T, HCR-404*T and HCR-1802*T were in linkage disequilibrium with each other. Haplotype-based association analysis showed SNP n.7*A-SNP n.9*C-Cw*0602-HCR-386*T-HCR-404*T-HCR-1802*T-HCR2406*G as a major susceptibility haplotype in this Chinese population (for early onset patients, odds ratio = 5.15, P-c < 0.0001). Conclusions Our results indicate that the HCR gene, SNP n.7*A, and SNP n.9*C as well as Cw*0602 are major susceptibility markers for psoriasis in Chinese patients.
    Keywords: Dermatology
    Date: 2004-06
    Relation: British Journal of Dermatology. 2004 Jun;150(6):1104-1111.
    Link to: http://dx.doi.org/10.1111/j.1365-2133.2004.05972.x
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0007-0963&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000222685600007
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=3142756374
    Appears in Collections:[Shih-Feng Tsai] Periodical Articles

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