甘肃汉族HLA-DRB1基因多态性与白血病的相关性研究

为了研究甘肃地区汉族白血病病人易感性与HLA-DRB1基因多态性的相关性研究并寻找白血病的易感基因,采用PCR和特异性寡合苷酸探针杂交（PCR/SSO）法,对74名西北汉族白血病工人和82名健康对照者的HLA-DRB1基因分型进行了研究.结果表明：甘肃地区汉族急性髓性白血病病人HLA-DRB1＊03（x^2=8.125,P=0.004）,HLA-DRB1＊07（x^2=13.526,P=0.000）,HLA-DRB1＊08（x^2=18.855,P=0.000）和HLA-DRB1＊13（x^2=7.039,P=0.008）明显增多;慢性髓性白血病病人HLA-DRB1＊07（x^2=5.689,P=0.017）,HLA-DRB1＊11（x^2=7.73,P=0.005）,HLA-DRB1＊12（x^2=4.234,P=0.040）,HLA-DRB1＊13（x^2=38.333,P=0.000）明显增多.急性淋巴细胞白血病病人HLA-DRB1＊01（x^2=5.294,P=0.021）明显增多.这些数据与对照组比较有差异性.结论：HLA-DRB1＊03,HLA-DRB1＊07,HLA-DRB1＊08,HLA-DRB1＊13与急性髓性白血病正相关.HLA-DRB1＊07,HLA-DRB1＊11,HLA-DRB1＊12,HLA-DRB1＊13与慢性髓性白血病的发病正相关.HLA-DRB1＊01急性淋巴细胞白血病病人的发病有一定联系.可以推测,HLA构象的多态性与白血病发生有相关性.

HLA-DRB1 Allele Polymorphosm Associated with Susceptibility to Leukemia in Han Nationality of Gansu

The study was aimed to explore the possible association between HLA-DRB1 allele polymorphism and the susceptibility to leukemia in Gansu Chinese Han nationality and to find the genes susceptible to leukemia. HLA-DRB1 genes in 74 patients with leukemia from northwestern China and 82 healthy Chinese controls were determined by polymerase chain reaction and sequence-specific oligonucleotide probe hybridizations (PCR/SSO) DNA analysis. The results showed that as compared with control, the allele frequencies of HLA-DRB1*03 (chi(2) = 8.125, P = 0.004), HLA-DRB1*07 (chi(2) = 13.526, P = 0.000), HLA-DRB1*08 (chi(2) = 18.855, P = 0.000), HLA-DRB1*13 (chi(2) = 7.039, P = 0.008) significantly increased in AML group. The allele frequencies of HLA-DRB1*07 (chi(2) = 5.689, P = 0.017), HLA-DRB1*11 (chi(2) = 7.73, P = 0.005), HLA-DRB1*12 (chi(2) = 4.234, P = 0.040), HLA-DRB1*13 (chi(2) = 38.333, P = 0.000) significantly increased in CML group. The allele frequency of HLA-DRB1*01 (chi(2) = 5.294, P = 0.021) significantly increased in ALL group. It is concluded that the susceptibility to AML in Gansu Han nationality is positively related to HLA-DRB1*03. 1*07.1*08.1*13. CML positively correlates with HLA-DRB1*07. 1*11.1*12.1*13, and ALL may be positively in relation with HLA-DRB1*01. Allele polymorphism is associated with the leukemia occurrence.