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。     

特应性皮炎与HLA-DRB1 DQB1基因的相关性研究

目的探讨HLA-DRB1和DQB1位点基因与汉族特应性皮炎的相关性。方法用序列特异性引物-聚合酶链反应(PCR-SSP)方法,对59例特应性皮炎患者(来自27个家系)和60例正常对照者进行了HLA-DRB1和DQB1等位基因的分型,并分析了DRB1和DQB1基因在各组中的分布。结果特应性皮炎患者组DRB1*15,DR7,DQB1*0601等位基因频率较正常对照组增高(P<0.05);特应性皮炎患者组DQB1*0302频率较正常对照组降低(P<0.05)。特应性皮炎家系成员中对屋尘螨抗原皮试阳性者HLA-DR7等位基因频率较皮试阴性者均显著增高(P<0.05)。结论特应性皮炎的发病可能与DRB1*15,DR7,DQB1*0601相关;DQB1*0302对特应性皮炎的发病可能起保护作用。HLA-DR7在限定对屋尘螨抗原特异性IgE反应过程中起重要作用。     

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。     

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.     

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。     

北方汉族寻常型银屑病与HLA等位基因的关联研究

目的:研究中国北方汉族寻常型银屑病(PsV)与HLA等位基因的关联性。方法:采用序列特异性引物-聚合酶链反应(PCR-SSP)方法检测91例PsV患者和102例健康人HLA-A、B、Cw、DRB1及DQB1等位基因。结果:(1)PsV患者HLA-A*0101-03、A*3001-04、B*5701、Cw*0602、Cw*0603/04/05、DRB1*0701/02及DQB1*0201基因频率较正常对照显著增高;Cw*0401基因频率显著下降(Pc<0.05)。(2)I型PsV患者HLA-A*0101-03、A*3001-04、B*5701、Cw*0602、DRB1*0701/02及DQB1*0201基因频率显著增高,而B*51、Cw*0401、DQB1*0301基因频率显著下降;Cw*0603/04/05基因频率在I型及II型PsV患者均显著增高(Pc<0.05)。有家族史PsV患者HLA-A*3001-04、DRB1*0701/02及DQB1*0201基因频率显著增高;无家族史患者Cw*0602基因频率显著增高,而DQB1*0501-04基因频率显著下降(Pc<0.05)。(3)HLA-A*3001-04、DRB1*0701/02及DQB1*0201基因频率仅在男性PsV患者显著增高;B*5701、Cw*0602基因频率仅在女性患者显著增高(Pc<0.05)。结论:(1)HLA-A*0101-03、A*3001-04、B*5701、Cw*0602、Cw*0603/04/05、DRB1*0701/02及DQB1*0201基因可能是北方汉族PsV的易感基因或与易感基因相连锁。(2)HLA-Cw*0401基因可能是阻止北方汉族PsV发病的“保护因子”。(3)I型或II型、有或无家族史PsV在遗传背景上存在差异。     

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mA—DRB1、DQB1位点基因与关节病型银屑病的相关性。方法：用序列特异性引物一聚合酶链反应（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。     

大疱及疱疹性皮肤病

20062700中国北方汉族寻常型天疱疮与HLA-Ⅱ类基因单倍型的相关性研究/耿龙(中国医大附属第二医院皮肤科),翟宁,韩秀萍…∥中国免疫学杂志.-2006,22(5).-453~455应用序列特异性引物-聚合酶链反应(PCR-SSP)技术对27例中国东北汉族PV患者的HLA-DRB1、DQB1等位基因测定,进行单倍型分析,并与99例健康对照者进行比较。结果显示与对照组比较,寻常型天疱疮患者组中单倍型DRB1*140×-DQB1*0503、DRB1*140×-DQB1*0201、DRB1*120×-DQB1*0503和DRB1*140×-DRB1*0302的频率明显增高,经统计学检验差异有显著意义(P<0.05)。提示特异单…     

HLA-DQ/DP等位基因与粤籍汉族斑秃及中医证型的相关性研究

目的探讨HLA-DQ/DP等位基因与粤籍汉族斑秃及中医证型的相关性。方法采用聚合酶链反应-序列特异性引物(PCR-SSP)分型技术,对51例粤籍汉族斑秃患者的HLA-DQ/DP等位基因进行检测,并与110名粤籍汉族健康人群进行对照。结果 HLA-DQA1*0201、DQA1*0601、DQB1*0501、DQB1*0602、DPA1*0103基因频率斑秃组显著高于对照组,有极显著性差异(P0.05或P0.01);DQB1*0301、DPA1*0201基因频率斑秃组显著低于对照组(P0.05);DQA1*0301气血两虚证基因频率显著高于其他证型(P0.05)。结论 HLA-DQA1*0201、DQA1*0601、DQB1*0501、DQB1*0602、DPA1*0103可能是斑秃的易感基因,DQB1*0301、DPA1*0201可能是斑秃的保护基因,DQB1*0301主要与重型组有关,DQB1*0501、DPA1*0103则与轻型组相关,DQA1*0301可能是气血两虚证的易感基础。     

类天疱疮与HLA-DRB1基因的相关性研究

为探讨HLA-DRE1基因与类天疱疮（BP）的相关性，采用聚合酶链反应序列特异性寡核苷酸探针PCR-SSOP方法对上海地区汉族56个BP患者和150名健康对照进行了HLA-DRB1基因分型。结果与健康对照组比较，BP患者HLA-DRBI*10（DRB1*1001）基因频率明显增高(Pc=0.022，RR=6.466)。结果提示HLA-DRB1*10(DRB1*1001)可能是我国上海地区汉族BP患者的易感基因。     

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.     

HLA-DRB1，DQA1，DQB1基因单倍型与华东地区汉族人群白癜风的相关性

目的 探讨HLA-DRB1、DQA1、DQB1基因单倍型与华东地区汉族人群白癜风的相关性。方法 采用聚合酶链反应-序列特异性寡核苷酸探针(PCR-SSOP)方法检测华东地区汉族白癜风患者HLA-DRB1、DQA1、DQB1位点的等位基因,运用遗传学群体与家系资料计算机分析系统3.0筛选并分析单倍型。结果 与正常人对照组比较,HLA-DRB1^*09-DQA1^*03-DQB1^*0303单倍型频率显著增高(Pc=0.02,OR=2.542)。结论 在华东地区汉族人群中,HLA-DRB1^*09-DQA1^*03-DQB1^*0303单倍型可能是白癜风的易感单倍型。     

Association between psoriasis vulgaris and MHC-DRB, -DQB genes as a contribution to disease diagnosis

We analyzed 100 control individuals and 60 patients with psoriasis vulgaris from the population of Campinas, Brazil. Typification of class II HLA alleles (HLA-DRB1-5 and -DQB1) was carried out through the DNA/PCR/SSP at medium and high resolution. DNA was extracted through a salting-out procedure: 13 DRB1 alleles, 3 DRB3 alleles, 1 DRB4 allele, 2 DRB5 alleles, and 5 DQB1 alleles were identified at a medium resolution using the PCR/SSP, and 45 DRB1 alleles were identified at a high resolution in analyzed patients. Results showed associations with psoriasis vulgaris: positive associations HLA-DRB3*02 (p < 0.05, chi(2) = 5.10, RR = 2.14); HLA-DRB1*0102 alleles (p < 0.05, RR = 5.44). Negative associations were found for HLA-DRB4*01 (chi(2) = 3.23, RR = 0.55) and HLA-DRB1*1302 alleles (p < 0.05, RR = 0.23). The haplotypes revealed positive association for HLA-DRB1*0102/DQB1*05 (p < 0.05, RR = 5.44) and HLA-DRB1*0701/DQB1*03 alleles (p < 0.02, RR = 9.00). These findings suggest a possible association of the DRB1 allele with the group of patients showing an early onset of the illness, as well as an association with haplotypes HLA-DRB1*0102/DQB1*05 and HLA-DRB1*0701/DQB1*03.     

Mucous membrane pemphigoid: HLA-DQB1*0301 is associated with all clinical sites of involvement and may be linked to antibasement membrane IgG production

BACKGROUND: Class I human leucocyte antigens (HLA) -A, -B, -Cw and class II HLA-DRB1, -DQB1 alleles were determined in 131 British Caucasian patients with mucous membrane pemphigoid (MMP) using serological and DNA-based methods. OBJECTIVES: To analyse the class I and II alleles expressed in well-defined clinical and immunopathological subgroups of MMP, in order to establish whether specific alleles or haplotypes might in part explain disease susceptibility, clinical sites of involvement or disease severity. METHODS: Subgroups of patients were analysed according to the following clinical criteria: age of onset, sex, sites of clinical involvement (oral, ocular, skin, nasal, genital, pharyngeal, oesophageal, laryngeal, perianal), disease severity and history of autoimmune disease. Subgroups were also analysed according to the following immunopathological criteria: autoantibody profile, the presence of circulating antibasement membrane IgG or IgA antibodies and the detection of target basement membrane zone (BMZ) antigens (BP230 and BP180) by IgG autoantibodies. RESULTS: Class I HLA typing showed no significant disease or subgroup associations. Class II DRB1 typing showed a significantly increased allelic frequency in MMP vs. controls for DRB1*11 (RR = 2.08, Pc < 0.0000056). For DQB1, MMP vs. controls, there was a significantly increased allelic frequency for DQB1*0301 (Pc < 0.00000028) in both males and females; all clinical sites of involvement, with the exception of laryngeal, oesophageal and perianal sites and in patients with detectable circulating anti-BMZ IgG compared with those negative for IgG (P < 0.0096, Pc < 0.019). A positive trend was noted in patients with ocular involvement compared with no ocular involvement and in patients with a clinical score > or = 10 compared with < 10. We found no difference in DQB1*0301 allele frequency between subgroups with or without BP180 or BP230 target antigens. Haplotype frequencies showed an increase in DRB1*04, DQB1*0301 (Pc < 0.000066) and DRB1*11, DQB1*0301 (Pc < 0.000002) among patients compared with controls. CONCLUSIONS: The DQB1*0301 allele confers a predisposition to all subgroups of MMP and may have a role in T-cell recognition of basement membrane antigens, resulting in the production of anti-BMZ IgG autoantibodies. The positive trend between increased allelic expression of DQB1*0301 in patients with ocular disease and in those with a higher clinical score, further suggests a role for this allele in disease severity.     

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.     

兰州地区汉族寻常性、脓疱性银屑病与HLA-DRB1*0701的相关性

目的探讨兰州地区汉族寻常性、脓疱性银屑病与HLA-DRB1*0701等位基因的相关性。方法采用聚合酶链反应-序列特异引物(PCR-SSP)法检测42例寻常性银屑病、28例脓疱性银屑病和50例健康对照者HLA-DRB1*0701等位基因频率,并相互比较。结果寻常性银屑病患者组及脓疱性银屑病患者组HLA-DRB1*0701等位基因频率分别(54.8%,46.4%)与正常对照组(22.0%)比较差异均有显著性(P<0.05)。结论HLA-DRB1*0701等位基因可能是兰州地区汉族寻常性、脓疱性银屑病的遗传标志。     

Human leukocyte antigen genotypes and antibody profiles associated with familial pemphigus in Japanese

Previous population-based, genetic studies have shown that human leukocyte antigen (HLA) class II loci such as HLA-DR4 (DRB1*04) and HLA-DR14 (DRB1*14) alleles are consistently associated with the occurrence of pemphigus vulgaris (PV) in Japanese as well as other ethnic populations. Among PV-related HLA-DRB1 alleles (*0406, *1401, *1405, *1406) in Japan, HLA DRB1*1405 and DRB1*0406 were found to be associated with both PV and pemphigus foliaceus (PF) phenotypes. We report four familial cases of pemphigus in two unrelated families, together with analysis of their HLA-DR and -DQ alleles, and their antibody profiles. One family comprised a woman with PF and her mother with PV: both patients shared a HLA haplotype of A31(19), B54(22), CW1 and DRB1*1405. Another family included two sisters with PF and PV, respectively: both of these patients shared a DRB1*1405-DQA1*0104-DQB1*0503 haplotype. Clinicopathological and serological monitoring revealed that the elder sister with PF presented with a PV phenotype later, and gained anti-desmoglein (Dsg)3 antibodies in addition to having a low titer of anti-Dsg1 antibodies. Conversely, the younger sister with PV developed PF with only anti-Dsg1 antibody detected. These results indicate that an HLA-DRB1*1405 (DQB1*0503) haplotype may confer susceptibility to both PV and PF, and that genetic susceptibility alone is not always responsible for the clinical phenotype and autoantibody profile.     

广西壮族系统性红斑狼疮与HLA-DRB1等位基因相关性研究

目的 探讨广西壮族系统性红斑狼疮(SLE)与HLA-DRB1基因的相关性。方法 用聚合酶链反应-序列特异性引物(PCR-SSP)方法,对52例SLE壮族患者和70例壮族健康人的HLA-DRB1基因进行研究。结果 SLE患者HLA-DRB1*1401及DRB1*16两个等位基因的频率低于正常对照组(RR=0.28,χ²=5.00,P=0.02及RR=0.39,χ²=3.95,P=0.05),患者组和对照组均未检出HLA-DRB1*08、DRB1*11和DRB1*13等位基因。结论 提示HLA-DRB1*1401及DRB1*16等位基因可能是广西壮族人SLE的保护基因,未发现易感基因。     

Association of HLA class I and class II alleles with bullous pemphigoid in Chinese Hans

Background

Bullous pemphigoid (BP) is one of the most common autoimmune skin diseases. Associations of genes, especially human leukocyte antigen (HLA)-DQ alleles, with BP indicate that genetic predisposition contributes to the disease.