山东地区汉族大疱性类天疱疮与HLA-DR,DQB1基因的相关性研究

目的探讨HLA-DR,DQB1位点基因在大疱性类天疱疮(BP)易感性中的作用。方法用序列特异性引物-聚合酶链反应(PCR-SSP)方法,对49例BP患者及70例正常对照者进行了HLA-DR,DQB1等位基因的分型,并分析了上述基因在两组中的分布。结果与正常对照组比较,BP患者组DRB1*10基因频率明显增高(校正P值<0.05);DRB1*04-DQB1*0302连锁体频率、DRB1*10-DQB1*0501连锁体频率在BP组均显著高于对照组;DRB1*04在黏膜损害及大剂量皮质类固醇激素用量组显著增高。结论HLA-DR10(DRB1*10)可能是中国汉族BP的易感基因。DRB1*04-DQB1*0302连锁体、DRB1*10-DQB1*0501连锁体可能为汉族BP的易感连锁体。     

汉族红斑型天疱疮与HLA-Ⅱ类基因的相关性研究

目的 探讨HLA-DR、DQB1位点基因在红斑型天疱疮（PE）易感性中的作用。方法 用聚合酶链反应-序列特异性引物（PCR-SSP）方法，对37例红斑型天疱疮患者进行了HLA-DR、DQB1等位基因的分型，并分别与57例和53例作了对照。结果 与正常对照组比较，PE患者组DR4（DRB1*0406）、DRB1*14、DQB1*0302、DQB1*0503基因频率比对照组显著增高。结论 HLA-DRB1*14、DQB1*0503可能是汉族PE患者易感的单倍型。     

山东地区汉族关节病型银屑病与HLA- DRB1、DQB1的相关性研究

目的 探讨HLA-DRB1、DQB1位点基因与关节病型银屑病的相关性.方法 用序列特异性引物-聚合酶链反应(PCR-SSP)方法,对41例关节病型银屑病患者进行了HLA-DRB1、DQB1等位基因的分型,并分析了上述基因在各组中的分布.结果 关节病型银屑病患者组DRB1*07、DQB1*0201频率较正常对照组增高;多关节炎型银屑病患者组DRB1*07、DQB1*0201以及DRB1*04基因频率比正常对照组显著增高.结论 HLA-DRB1*07、DQB1*0201可能是山东地区汉族关节病型银屑病的遗传标志;具有银屑病易感基因的个体,携带HLA- DRB1*04基因时,患多关节炎型银屑病的危险性可能增加.     

北方汉族寻常型银屑病与HLA-DRB1及DQB1等位基因相关性研究

目的:探讨HLA-DRB1及DQB1等位基因与北方汉族寻常型银屑病相关性。方法:利用序列特异性引物-聚合酶链反应(PCR-SSP)分型技术,对63例寻常型银屑病患者和102例健康人的HIA-DRB!及DQB1等位基因进行检测。结果:(1)HLA-DRB1*070x、DRB1*1001及DOB`*020x等位基因与北方汉族寻常型银屑病呈正相关(P分别为0.001,0.005,0.009);HLA-DRB1*120x等位基因与北方汉族寻常型银屑病呈负相关(P=0.007)。(2)HLA-DRB1*070x及DQB1*020x等位基因仅与家族史阳性的早发型(Ⅰ型)银屑病发病相关(P<0.001)。(3)HLA-DRBq*1001等位基因频率在Ⅰ型及无家族史的晚发型(Ⅱ型)银屑病均显著性增高(P<0.05)。结论:(1)HLA-DRB1*070x、DRB1*1001及DQB1*020x等位基因可能是北方汉族寻常型银屑病的易感基因或与易感基因相连锁;HLA-DRB1*120x等位基因可能是阻止北方汉族人发生银屑病的保护基因。(2)Ⅰ型及Ⅱ型银屑病的遗传背景存在差异。     

HLA-Ⅱ类基因与大疱性类天疱疮的相关性研究

目的 探讨大疱性类天疱疮(BP)与HLA-Ⅱ类基因的相关性，BP的免疫遗传发病背景。方法 用聚合酶链反应-序列特异性引物寡核苷酸探针(PCR-SSOP)方法对上海地区汉族56例类天疱疮患者和150例健康对照进行了HLA-DRB1、DQA1、DQB1位点等位基因分型。结果 发现HLA-DRB1*1001与DQB1*0501紧密连锁，其基因频率在BP组与对照组比较明显增高，与BP的临床特征黏膜损害正相关，与靶抗原BP230抗体正相关：DRB1*04与DQB1*0302紧密连锁，其基因频率在BP组与对照组比较也明显增高，与靶抗原BP180正相关：DRB1*12基因频率BP组与对照组比较明显降低(P=0．007，RR=0．358)，与BP的年龄因素和对皮质类固醇的治疗反应负相关。结论 DRB1*1001、DRB1*04可能为上海地区BP患者的易感基因，而DRB1*12(*1201，*1202)可能为上海地区汉族BP患者的保护基因。     

广东汉族白癜风与HLA-Ⅱ类基因相关性研究

目的:确定广东籍汉族白癜风发病与HLA-Ⅱ类基因的相关性。方法:采用聚合酶链反应-序列特异性引物(PCR-SSP)技术,对57例广东籍汉族各型白癜风患者和60例健康对照者静脉血样本HLA-DR,DQ等位基因多态性进行研究。结果:白癜风患者DR7(DRB1*0701)等位基因频率显著升高(RR=6.213,Pc0.05),DRw52(DRB3*0101/02 DRB3*0201 DRB3*0301),DRw53(DRB4*0101/03/05)和DRw51(DRB5*0101/02 DRB5*0202)基因频率明显低于正常对照组,以上三者两组间比较均有显著性差异(Pc0.05)。白癜风患者DQ5(DQB1*0501-04)基因频率显著高于正常对照组(Pc0.05);DQ4(DQB1*0401/02)基因频率显著低于正常对照组(Pc0.05)。结论:提示HLA-DR7(DRB1*0701)等位基因可能与广东籍汉族白癜风的发病有关。DRw52(DRB3*0101/02 DRB3*0201 DRB3*0301),DRw53(DRB4*0101/03/05)和DRw51(DRB5*0101/02 DRB5*0202)对白癜风发病可能有一定保护作用。DQ5(DQB1*0501-04)可能为白癜风患者的易感基因。     

中国北方汉族泛发型白癜风与HLA-DRB1等位基因的相关

目的:探讨HLA-DRB1等位基因与中国北方汉族泛发型白癜风的相关性。方法:采用聚合酶链反应-序列特异引物(PCR-SSP)技术检测34例北方汉族泛发型白癜风患者的HLA-DRB1等位基因。结果:与262例正常对照组相比较,泛发型白癜风患者HLA-DRB1*0701/02、DRB1*1201/02基因频率显著增高(Pc<0.0001),HLA-DRB1*0901、DRB1*11基因频率降低(但经校正后Pc>0.05);有明确家族史的患者HLA-DRB1*1201/02基因频率显著增高(Pc<0.0001);无家族史者HLA-DRB1*0701/02基因频率显著升高(Pc<0.0001),DRB1*1201/02基因频率显著增高(经校正后Pc>0.05),DRB1*0901基因频率降低(经校正后Pc>0.05)。结论:中国北方汉族人群,HLA-DRB1*0701/02、DRB1*1201/02等位基因可能与泛发型白癜风的发病有关,而DRB1*0901、DRB1*11等位基因可能是防止其发病的“保护因子”,为进一步揭示泛发型白癜风的易感基因及免疫遗传发病机制提供线索。     

广东汉族SLE患者HLA-DR、DQ、DP基因多态性研究

目的：研究广东汉族SLE患与HJA-DQ、DR、DP的相关性。方法：采用聚合酶链反应-序列特异性引物(PCR-SSP)技术，对48例广东籍汉族SLE患和102例健康对照静脉血样本HJA-DQ、DR、DP等位基因多态性进行研究。结果：SLE患DQA1*0101等位基因频率显升高(RR=8．12，P=0．004)，DQA1*0302明显低于正常组(RR=0．09，P=0．005)。DQB1*0301基因频率明显低于正常组，两比较有显性差异(P＜0．01)。SLE患DR3(DRB1*0301-DRB1*0302)基因频率显高于正常组(x。=14．24，P＜0．01，RR=20．20)；DRw52(DRB3*0101-DRB3*0301)基因频率显高于正常组(x^2=20．346，P＜0．01)；DRWl4：DRBl*1402，DRB1*1403基因频率也显高于正常组(P＜0．05)；DR4(DRB1*0401-DRB1*0411)基因频率明显低于正常组(P＜0．01)，DR9(DRB1*0901)，DRw11(DRB1*1101-DRB1*1104)基因频率也显低于正常组(P＜0．01)，DPA1*0202等位基因频率显高于正常组(x^2=4．124，P＜0．05，RR=3．54)，SLE患DPA1*0201等位基因频率显低于正常组(x^2=4．595，P＜0．05，RR=0．37)。结论：提示HLA-DQA1*0302、DQB1*0301；DR4(DRB1*0401-DRB1*0411)，DR9(DPB1*0901)，DRw11(DRB1*1101-DRB1*1104)对SLE发病可能有一定保护作用。DPA1*0202为广东籍48例SLE患的易感基因，而DPA1*0201可能为其保护基因。     

梅毒患者与HLA-DRB1等位基因相关性研究

目的:检测山东汉族梅毒患者与HLA-DRB1等位基因的相关性.方法: 应用聚合酶链反应-序列特异性引物技术(PCR-SSP)对196例山东汉族梅毒患者与500例山东汉族正常对照的HLA-DRB1等位基因表现频率进行检测.结果: 患者组DRB1*14等位基因的出现频率高于对照组(P<0.05);DRB1*16等位基因的出现频率与对照组无显著差异(P>0.05).结论: HLA-DRB1*14等位基因可能是梅毒的易感基因.     

宁夏地区回族和汉族白癜风患者与HLA-DRB1的相关性

目的探讨HLA-DRB1基因与宁夏地区回族与汉族白癜风患者的相关性。方法采用聚合酶链反应-序列特异性引物(PCR-SSP)方法检测宁夏地区回族与汉族白癜风患者HLA-DRB1位点的等位基因,使用SPSS10.0统计软件分析。结果汉族白癜风患者HLA-DRB1*09等位基因频率(9.20%)较汉族正常人(2.50%)的基因频率显著升高(P<0.05),而在回族白癜风患者HLA-DRB1*16等位基因频率(10.00%)较回族正常人的基因频率(1.30%)显著升高(P<0.05)。结论 HLA-DRB1*09等位基因可能与宁夏地区汉族白癜风患者的发病相关,而HLA-DRB1*16等位基因可能与宁夏地区回族白癜风患者的发病有一定的相关性。     

HLA-DQB1等位基因多态性与复发性尖锐湿疣的关系

【摘要】目的 研究HLA-DQB1等位基因DQB1*0501、DQB1*0502、DQB1*0201、DQB1*0402与复发性尖锐湿疣间的关系,为寻找尖锐湿疣的易感基因提供线索。方法 应用PCR-SSP技术检测84例复发性尖锐湿疣患者和107例正常人的HLA-DQB1等位基因DQB1*0501、DQB1*0502、DQB1*0201、DQB1*0402。结果 尖锐湿疣复发组DQB1*0501等位基因频率明显降低（8.3% vs 21.5%,P<0.05）,DQB1*0201等位基因频率明显降低（0% vs 9.3%,P<0.01）,另两等位基因在两组之间无明显差异,提示DQB1*0501与DQB1*0201与尖锐湿疣复发相关。结论 HLA 多态性可能是与尖锐湿疣复发有关的宿主遗传因素。     

HLA-DQA1*0302、DQB1*0303与新疆维吾尔族白癜风的相关性研究

目的 探讨HLA-DQA1、DQB1等位基因与新疆维吾尔族白癜风相关性。方法 聚合酶链反应-序列特异性引物（PCR-SSP）检测300例维吾尔族白癜风患者HLA-DQA1*0302、DQB1*0303等位基因。结果 与300例维吾尔族正常人对照组相比,①白癜风患者DQA1*0302（20.5%比13.83%）、DQB1*0303（30.17%比13.33%）等位基因频率显著增高（P ＜ 0.01）;②HLA-DQA1*0302、DQB1*0303等位基因频率在成人型（发病年龄 ＞ 12岁）及儿童型（发病年龄≤12岁）的白癜风患者中均增高（P ＜ 0.01）;③HLA-DQB1*0303等位基因频率在有、无家族史的白癜风患者中均增高（P ＜ 0.01）,HLA -DQA1*0302等位基因频率在无家族史病例中显著增高（P ＜ 0.01）;④白癜风组儿童型和成人型两组间比较及有、无家族史两组间比较,DQA1*0302、DQB1*0303等位基因频率差异无统计学意义（P > 0.05）。 结论 HLA-DQA1*0302、DQB1*0303等位基因可能与新疆维吾尔族白癜风相关,儿童型和成人型及有、无家族史的白癜风在其遗传背景上可能存在异质性。     

Association of HLA-DQA1 and DQB1 genes with vitiligo in Chinese Hans

BACKGROUND: Vitiligo is an acquired depigmentary disorder of the skin and hair which results from selective destruction of melanocytes. Serological typing and genotyping of human leukocyte antigen (HLA) have shown discrepancies in HLA associations with vitiligo in different ethnic populations. METHODS: Polymerase chain reaction sequence-specific primer (PCR-SSP) method was used to analyze the distribution of HLA-DQA(1) and -DQB(1) alleles among 187 patients with vitiligo and 273 healthy controls through Epi Info version 6 package (Centers for Disease Control and Prevention, Atlanta, GA, USA). RESULTS: The frequencies of HLA-DQA1*0302 (OR = 1.98, P(c) < 0.01), -DQB1*0303 (OR = 3.14, P(c) < 0.001), and -DQB1*0503 (OR = 3.36, P(c) < 0.05) alleles were significantly increased in patients with vitiligo compared with controls, and HLA-DQA(1)*0501 (OR = 0.40, P(c) < 0.01) allele frequency was highly decreased. HLA-DQA1*0302 (OR = 5.19, P(c) < 0.001), -DQA1*0601 (OR = 2.95, P(c) < 0.05), -DQB1*0303 (OR = 4.50, P(c) < 0.001), and -DQB1*0503 (OR = 6.69, P(c) < 0.001) alleles were positively associated, whereas HLA-DQA1*0501 (OR = 0.05, P(c) < 0.001) allele was negatively associated with childhood vitiligo patients, and HLA-DQB1*0303 (OR = 2.76, P(c) < 0.001) allele was positively associated with adult vitiligo patients compared with controls. The frequency of HLA-DQB1*0303 (OR = 3.72, P(c) < 0.001) allele was significantly increased in localized vitiligo patients vs. controls, whereas HLA-DQA1*0302 (OR = 2.47, P(c) < 0.01), -DQB1*0303 (OR = 2.67, P(c) < 0.01), and -DQB1*0503 (OR = 4.46, P(c) < 0.01) allele frequencies were significantly increased and -DQA1*0501 (OR = 0.27, P(c) < 0.01) allele frequency was highly decreased in generalized vitiligo patients. CONCLUSIONS: HLA-DQA1*0302, -DQA1*0601, -DQB1*0303, and -DQB1*0503 alleles could be susceptible alleles of vitiligo, while HLA-DQA1*0501 allele could be a protective allele in Chinese Hans. There may be different genetic backgrounds between vitiligo patients of childhood and adult, localized and generalized.     

HLA-DQA1和HLA-DQB1等位基因与皖籍汉族人群白癜风的相关性

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-DQA1*0302、-DQB1*0303、-DQB1*0503等位基因频率显著升高,HLA-DQA1*0501等位基因频率显著降低;②HLA-DQA1*0302、-DQA1*0601、-DQB1*0303、-DQB1*0503等位基因频率在儿童型白癜风患者中显著升高,HLA-DQA1*0501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-DQA1*0302、-DQB1*0303、-DQB1*0503等位基因频率在泛发型白癜风患者中显著升高,HLA-DQA1*0501等位基因频率显著下降;而局限型白癜风患者HLA-DQB1*0303等位基因显著升高。结论 HLA-DQA1*0302、-DQA1*0601、-DQB1*0303、-DQB1*0503、-DQA1*0501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。     

Polymorphisms of HLA-DR and -DQ genes in Japanese patients with bullous pemphigoid

Bullous pemphigoid (BP), an autoimmune skin disease of the elderly, is mediated by autoantibodies that bind to hemidesmosomes of epidermal basal cells. This study investigated BP-associated HLA-DR and -DQ genes among Japanese patients. We analyzed HLA-DR and -DQ genes among 23 Japanese BP patients based on the polymerase chain reaction-restriction fragment length polymorphism. Eighteen of these 23 patients (78%) carried at least one allele of HLA-DRB1*04 or DRB1*1101, with significant increases in HLA-DRB1*04 (*0403, *0406)/DQA1*0301/DQB1*0302 and DRB1*1101/DQA1*0505/DQB1*0302 haplotypes as well as the individual alleles DRB1*1101 and DQB1*0302 (corrected p < 0.05 for each comparison), when compared to control subjects. These data differ from the accepted DQB1*0301 (DQ7) association with the same disease among Caucasians. These findings indicate that different HLA class II haplotypes genetically influence susceptibility to BP among different ethnic groups. Our findings, together with previous reports on Caucasian patients with the pemphigoid group of bullous diseases, suggest that HLA-DRB1 molecules might participate in the regulation of autoimmune responses to BP antigens.     

广东籍汉人HLA-DQA DQB基因与SLE的易感性研究

目的　探讨SLE患者遗传易感性与HLA DQ基因分型的相关性。方法　以广东籍健康者及SLE患者全血为研究标本 ,DNA的提取用快速盐析法 ,HLA DQ基因分型用序列特异性引物 (SSP)法。结果　SLE患者组中DQA1 0 10 1等位基因的检出率明显高于正常组 (RR =3 .12 ,Pc =0 .0 3 6) ,DQA1 0 3 0 2等位基因的检出率则明显低于正常组(RR =0 .0 9,Pc =0 .0 45 ) ;SLE患者组中DQB1 0 3 0 1的检出率明显低于正常组 ,与正常组比较有显著性差异 (P <0 .0 1)。结论　广东籍汉族SLE与HLA DQ的相关性方面 ,DQA1 0 10 1起主导作用 ;广东籍汉族SLE患者中 ,疾病的保护性基因在本研究中表现为DQA1 0 3 0 2、DQB1 0 3 0 1。     

Familial pemphigus vulgaris: immunogenetic study of HLA class II antigens

IntroductionPemphigus vulgaris (PV) is a rare autoimmune bullous disease that affects the skin and mucosae, characterized by the presence of antibodies against desmoglein 3, that causes acantholisis and formation of intraepidermal blisters. Observation of PV cases in several members of the same family suggests the existence of genetic factors that contribute to susceptibility to suffer the disease. However, very few cases of familial PV have been described. Based on its autoimmune nature, many studies have found an association between PV and the HLA class II allele, specifically with the HLA-DRB1*0402 DQB1*0302 and HLA-DRB1*1401 DQB1*0503 haplotypes that bestows a significant risk of disease.ObjectivesStudy of three families with PV.Patients and methodsIn this study, we present three families, with a total of 7 patients, diagnosed of familial PV. HLA antigens were determined with the PCR (polymerase chain reaction) technique in several members of these families.ResultsAll the subjects affected were positive for HLA DR4 and HLA DR14. The fact that different families with PV are associated with identical haplotypes and that healthy siblings ofthe patients have the same haplotype is of special interest.ConclusionThese results support the concept of genetic predisposition in this rare disease.     

Human leucocyte antigen class II associations in chronic idiopathic urticaria

The major histocompatibility complex (MHC) acts as a marker for self during T-cell ontogeny and is associated with the pathogenesis of many autoimmune diseases. Recent investigations have shown about 30% of patients with chronic idiopathic urticaria (CIU) have IgG autoantibodies against the high-affinity IgE receptor, FcepsilonRI, or IgE. A link between MHC class II alleles and CIU has not been reported previously. DNA was extracted from blood of 100 Caucasian patients with CIU, and the MHC class II type determined using the polymerase chain reaction with sequence-specific primers, testing for DRB and DQB1 alleles. The frequency of alleles in CIU patients was compared with that found in 603 controls. Further human leucocyte antigen (HLA) typing on patient subsets, classified by the patients' responses to intradermal injection of autologous serum and their serum-induced histamine release from basophil leucocytes of healthy donors, was undertaken. HLA DRB1*04 (DR4) and its associated allele, DQB1*0302 (DQ8), are raised in CIU patients compared with a control population (P = 2 x 10-5 and P = 2 x 10-4, respectively). HLA DRB1*15 (DR15) and its associated allele, DQB1*06 (DQ6), are significantly less frequently associated with CIU. The HLA DRB1*04 association is particularly strong (corrected P = 3.6 x 10-6) for patients whose serum has in vivo and in vitro histamine-releasing activity. HLA class II typing is consistent with the concept that CIU is a heterogeneous disease, and supports an autoimmune pathogenesis in a subset of patients.     

HLA-DR and DQ polymorphisms in bullous pemphigoid from northern China

Bullous pemphigoid (BP) is an autoimmune disease mediated by autoantibodies against hemidesmosome components. This study used PCR-sequence-specific primers to genotype polymorphisms in HLA-DR and DQ in 25 BP patients and 57 normal controls from northern China. We found lower frequencies of DRB1*08 (DR8) and DRB1*08/DQB1*06 (DR8/DQ6) haplotypes in BP patients than in controls (4.08% vs. 15.19% and 1.54% vs. 13.82%, respectively; P < 0.05), suggesting a protective role for DR8 and DR8/DQ6 haplotypes in BP patients from northern China; there were no statistical differences among other alleles tested. This result is strikingly different from previous reports that DQB1*0301 is associated with BP in Caucasian patients and DRB1*1101, DQB1*0302, DRB1*04/DQA1*0301/DQB1*0302 and DRB1*1101/ DQA1*0505/DQB1*0302 with Japanese BP patients. Ethnic differences in the polymorphic composition of the HLA-DR and DQ genes may influence genetic susceptibility to BP.