1998年6月至2003年7月,广州脐血库向国内21家移植中心提供非亲缘异基因脐血移植54例。本研究采用PCR产物直接测序法对HLA-DRB1进行高分辨分型(PCR-sequencing based typing PCR-SBT),并结合HLA-SSP低分辨分型结果,探讨非亲缘性脐血移植...1998年6月至2003年7月,广州脐血库向国内21家移植中心提供非亲缘异基因脐血移植54例。本研究采用PCR产物直接测序法对HLA-DRB1进行高分辨分型(PCR-sequencing based typing PCR-SBT),并结合HLA-SSP低分辨分型结果,探讨非亲缘性脐血移植供/受者HLA-DRB1等位基因及其亚型与脐血移植GVHD发生率的关系。利用盐析或柱提法提取48例非亲缘性脐血及移植患者全血DNA,采用HLA-SBT方法分别对HLA-DRB1等位基因进行高分辨分型,并与HLA-SSP(HLA-sequencing specific primers)低分辨结果进行比较分析。结果表明:采用双盲法对48例非亲缘性脐血移植供/受者样本HLA-DRB1进行高分辨分型,结果HLA-DRB1等位基因亚型匹配全相合病例的GVHD发生率(25%)显著低于不完全相合病例的GVHD发生率(65.6%)(P=0.008)。结论:对HLA-DRB1采用高分辨分型方法在非亲缘性脐血移植HLA分型方面具有重要的临床应用价值。展开更多
Lichen sclerosus (LS) is considered to have an immunogenetic background. Several small studies, using serological typing, have reported that HLA-DR11, DR12, and DQ7 were increased in LS, with DR17 less frequent. This ...Lichen sclerosus (LS) is considered to have an immunogenetic background. Several small studies, using serological typing, have reported that HLA-DR11, DR12, and DQ7 were increased in LS, with DR17 less frequent. This study aimed to validate and detect new HLA-DR and DQ associations with LS in females and its characteristic clinical parameters. The cases, 187 female LS patients, and 354 healthy controls were all UK North Europeans. PCR-sequence specific primers method was applied to genotype the HLA-DR, DQ polymorphisms that correspond to 17 serologically defined DR and seven DQ antigens. Statistical analysis was performed with two-tailed Fisher’ s exact test with Bonferroni adjustment (p value after Bonferrroni adjustment, Pc). We found increased frequency of DRB1 12 (DR12) (11.2% vs 2.5% , pc < 0.01) and the haplotype DRB1 12/DQB1 0301/04/09/010 (11.2% vs 2.5% , p < 0.001, pc < 0.05), and a lower frequency of DRB1 0301/04 (DR17) (11.8% vs 25.8% , pc < 0.01) and the haplotype DRB1 03/DQB1 02DRB1 0301/ DQB1 0201/02/03 (11.2% vs 24.6% , pc < 0.0001) in patients compared with controls. HLADR and DQ antigens were not associated with time of onset of disease, site of involvement, structural changes of genitals, and response to treatment with potent topical steroids. In conclusion, HLA-DR and DQ antigens or their haplotypes appear to be involved in both susceptibility to and protection from LS.展开更多
文摘1998年6月至2003年7月,广州脐血库向国内21家移植中心提供非亲缘异基因脐血移植54例。本研究采用PCR产物直接测序法对HLA-DRB1进行高分辨分型(PCR-sequencing based typing PCR-SBT),并结合HLA-SSP低分辨分型结果,探讨非亲缘性脐血移植供/受者HLA-DRB1等位基因及其亚型与脐血移植GVHD发生率的关系。利用盐析或柱提法提取48例非亲缘性脐血及移植患者全血DNA,采用HLA-SBT方法分别对HLA-DRB1等位基因进行高分辨分型,并与HLA-SSP(HLA-sequencing specific primers)低分辨结果进行比较分析。结果表明:采用双盲法对48例非亲缘性脐血移植供/受者样本HLA-DRB1进行高分辨分型,结果HLA-DRB1等位基因亚型匹配全相合病例的GVHD发生率(25%)显著低于不完全相合病例的GVHD发生率(65.6%)(P=0.008)。结论:对HLA-DRB1采用高分辨分型方法在非亲缘性脐血移植HLA分型方面具有重要的临床应用价值。
文摘Lichen sclerosus (LS) is considered to have an immunogenetic background. Several small studies, using serological typing, have reported that HLA-DR11, DR12, and DQ7 were increased in LS, with DR17 less frequent. This study aimed to validate and detect new HLA-DR and DQ associations with LS in females and its characteristic clinical parameters. The cases, 187 female LS patients, and 354 healthy controls were all UK North Europeans. PCR-sequence specific primers method was applied to genotype the HLA-DR, DQ polymorphisms that correspond to 17 serologically defined DR and seven DQ antigens. Statistical analysis was performed with two-tailed Fisher’ s exact test with Bonferroni adjustment (p value after Bonferrroni adjustment, Pc). We found increased frequency of DRB1 12 (DR12) (11.2% vs 2.5% , pc < 0.01) and the haplotype DRB1 12/DQB1 0301/04/09/010 (11.2% vs 2.5% , p < 0.001, pc < 0.05), and a lower frequency of DRB1 0301/04 (DR17) (11.8% vs 25.8% , pc < 0.01) and the haplotype DRB1 03/DQB1 02DRB1 0301/ DQB1 0201/02/03 (11.2% vs 24.6% , pc < 0.0001) in patients compared with controls. HLADR and DQ antigens were not associated with time of onset of disease, site of involvement, structural changes of genitals, and response to treatment with potent topical steroids. In conclusion, HLA-DR and DQ antigens or their haplotypes appear to be involved in both susceptibility to and protection from LS.
