造血干细胞移植供受体人群HLA-Cw基因遗传多态性研究

目的调查了人类白细胞抗原（human leucocyte antigen，HLA）Cw位点在中国汉族人群中的等位基因分布规律，为进一步研究Cw位点的遗传特征提供背景资料。方法采用序列特异性引物扩增技术对1285名无关个体进行HLA-Cw基因特异性分析，并对其分布规律进行统计学分析。结果共检测到23种HLA-Cw位点的等位基因，其中HLA-Cw＊01、＊03、＊07、＊08为主要基因型，其基因频率分别为0．1529、0．2385、0．1747、0．1004，并检出HLA-Cw＊12、＊14、＊15、＊16、＊17等血清学方法不能鉴定的HLA-Cw基因；统计结果表明HLA-Cw位点的基因分布符合Hardy-Weinberg平衡（χ^2=73．74，df=98，P〉0．5）。结论本研究结果为中国汉族人群提供了一套较为完整HLA-Cw基因遗传学参数。

Genetic polymorphism of HLA-Cw locus in hematopoietic stem cell transplantation patient and donor population

OBJECTIVE: To analyze the distribution of genes in HLA-Cw locus from Han population of China in a large scale, and to provide basic data for further study on the genetic characteristics of HLA-Cw locus of this population. METHODS: Totally 1285 unrelated Chinese Han individuals were typed by PCR-SSP, and statistics was utilized to investigate the distribution rules of detected genes. RESULTS: Twenty-three HLA-Cw alleles were identified in Chinese Han population, out of them HLA-Cw*01, *03, *07 and *08 were the commonest genes, which accounted for frequencies of 0.1529, 0.2385, 0.1747 and 0.1004, respectively. Five genes which could not be identified by serological method were deaed: HLA-Cw*12, *14, *15, *16 and *17. Hardy-Weinberg test showed that the observed genetic polymorphism distribution values were correspondent with the expected (chi-square=73.74, df=98, P>0.5). CONCLUSION: This study may serve a full-scale scientific genetic parameters of HLA-Cw genes for Chinese Han population studies.