HLA-DQA1和HLA-DQB1等位基因与皖籍汉族人群白癜风的相关性  

Association of HLA-DQA1,-DQB1 Genes with Vitiligo in Chinese Hans in Anhui Province

作　　者：汪继云[1,2] 杨森[1] 王红艳[1] 刘宏胜[1] 孙良丹[1] 高敏[1] 何平平[1] 崔勇[1] 张学军[1] 

机构地区：[1]安徽医科大学皮肤病研究所,第一附属医院皮肤性病科,合肥230022 [2]安徽省皮肤病防治所

出　　处：《中华皮肤科杂志》2005年第6期357-359,共3页Chinese Journal of Dermatology

基　　金：国家863计划课题(2001AA227031);安徽省自然科学基金项目(01043705)

摘　　要：目的探讨HLA-DQA1、-DQB1等位基因与皖籍汉族人群白癜风的相关性。方法采用聚合酶链反应-序列特异性引物(PCR-SSP)方法,检测白癜风患者的HLA-DQA1、-DQB1等位基因。结果与正常人对照组比较,①白癜风患者HLA-DQA10302、-DQB10303、-DQB10503等位基因频率显著升高,HLA-DQA10501等位基因频率显著降低;②HLA-DQA10302、-DQA10601、-DQB10303、-DQB10503等位基因频率在儿童型白癜风患者中显著升高,HLA-DQA10501等位基因频率显著下降;而成人型白癜风患者HLA-DQB10303等位基因频率显著升高;③HLA-DQA10302、-DQB10303、-DQB10503等位基因频率在泛发型白癜风患者中显著升高,HLA-DQA10501等位基因频率显著下降;而局限型白癜风患者HLA-DQB10303等位基因显著升高。结论HLA-DQA10302、-DQA10601、-DQB10303、-DQB10503、-DQA10501等位基因可能与白癜风相关,不同类型白癜风在其遗传背景上可能存在异质性。Objective To identify the association of HLA-DQA1 and-DQ B1 alleles with vitiligo in Chinese Hans in Anhui province.Methods Polymerase chain reaction sequence-specific primer (PCR-SSP) method was used to analyze the distribution of HLA-DQA1 and-DQB1 alleles among 187 patients with vitiligo and 273 healthy controls.Results The frequencies of HLA-DQA1*0302,-DQB1*0303,-DQB1*0503 alleles were significantly increased in the patients with vitiligo compared with those in the controls,and HLA-DQA1*0501 allele frequency was mark edly decreased.HLA-DQA1*0302,-DQA1*0601,-DQB1*0303,-DQB1*0503 alleles were p ositively associated,whereas HLA-DQA1*0501 allele was negatively associated wit h childhood vitiligo,and HLA-DQB1*0303 allele was positively associated with ad ult vitiligo,in comparison with those in the controls.The frequency of HLA-DQB 1*0303 allele was significantly increased in localized vitiligo patients compare d with that in the controls,whereas frequencies of HLA-DQA1*0302,-DQB1*0303,-DQB1*0503 alleles were significantly increased and the frequency of HLA-DQA1*050 1 allele was markedly decreased in generalized vitiligo patients.Conclusions HLA-DQA1*0302,-DQA1*0601,-DQB1*0303 and-DQB1*0503 alleles could be the suscep tible alleles of vitiligo,while HLA-DQA1*0501 allele could be the protective al lele in Chinese Hans in Anhui province.There may be different genetic backgroun ds between childhood and adult patients,and between localized and generalized vitiligo.

关 键 词：汉族人群 相关性 聚合酶链反应-序列特异性引物 HLA-DQA1＊0501 皖籍 等位基因频率 -DQB1 局限型白癜风 遗传背景 患者 升高 对照组 正常人 儿童型 成人型 泛发型 异质性 同类型 下降 

分 类 号：R758.41[医药卫生—皮肤病学与性病学]