摘要
目的 建立南京地区人群HPA、HLA已知基因型血小板供者资料库,从群体资料分析本地人群血小板HPA-1～6w、-15和HLA-A、-B的等位基因多态性,推算患者基因配合的匹配概率与适宜本地的库容水平.方法 分别采用PCR-SSP和PCR-SBT方法对HPA-1～6w、-15和HLA-A、-B进行基因分型;应用SHEsis在线软件统计分析HPA-1～6w、-15和HLA-A、-B的等位基因频率与单倍型频率;依次推算找到HPA、HLA匹配供者的概率与适宜的库容大小.结果 获得了南京地区HPA-1～6w、-15和HLA-A、-B群体多态性资料;根据统计结果评估,在不考虑ABO同型的情况下,当血小板供者库容为527人时,单倍型频率＞0.001的患者有95％的概率在库中找到至少1例HPA-1～6w、-15相匹配的供者.建立1个库容为1 875人的血小板供者库可满足单倍型＞0.001的患者有95％的可能找到至少1例HLA-A、-B相合的供者.结论 建立了本地区血小板献血者HPA、HLA基因资料库,为后续血小板库的扩建、维护与临床应用提供了重要的数据支持.
Abstract
Objective To establish a known HPA/HLA genotype platelet donor database in Nanjing,analyze the poly-morphism of HPA-1～6w,-15 and HLA-A,-B and evaluate the matching probability and appropriate capacity of the database for platelet matching transfusion.Methods HPA-1～6w,-15 and HLA-A,-B were genotyped by PCR-SSP and PCR-SBT,respectively.The allele frequency and haplotype frequency of HPA-1～6w,-15 and HLA-A,-B were calculated with SHEsis software,and then the matching probability and appropriate capacity were obtained according to the haplotype frequencies.Results The population genetic polymorphisms data of HPA-1～6w,-15 and HLA-A,-B in Nanjing were obtained.Accord-ing to the subsequent calculating,without considering ABO blood type,in a database size of 527 donors,a patient with hap-lotype frequency＞0.001 has approximate 95％probability to achieve matching of HPA-1～6w,-15 genotype.A database with a total size of 1 875 donors can afford the patient with haplotype frequency＞0.001 to find at least 1 HLA-A,-B matched donor in 95％probability.Conclusion We established a local platelet donor database with known HPA and HLA genotype,which also provided important data support for the subsequent construction,maintenance and clinical application of the data-base.
基金项目
江苏省输血协会爱康生物科研基金(JSAK2022008)
万方数据