Study on the genetic susceptibility of HLA-DRB1,-DQB1 alleles in colorectal neoplasm of hubei Han Chinese / 中华检验医学杂志

ABSTRACT

Objective To investigate the genetic susceptibility of HLA DRB1, DQB1 alleles to colorectal neoplasm in Hubei Han Chinese. Methods 54 patients with colorectal neoplasm and 136 healthy controls were examined for HLA DRB1 and HLA DQB1 genotypes, which were typed by using polymerase chain reaction/sequence specific primer (PCR/SSP) technique and allele sequence analysis.SAS(6.12 for win) was used for statistics. Results Compared with the control, the allele frequency (AF) of HLA DRB1*0901 (0.2315 vs 0.1397, P =0.033) and DRB1*080X(0.009 3 vs 0.080 9, P =7.11?10 -3 ) was significantly increased or decreased, respectively, in colorectal neoplasm of Hubei Han Chinese. And there was not significantly different between the patients with the control in the AF of HLA DQB1 alleles. Conclusion The results indicate that HLA DRB1*0901 allele is the positive association to , but DRB1*080X is the negative association to the patients of colorectal neoplasm among Hubei Han Chinese. The nucleotide sequences of these two alleles were identified by allele sequence analysis, approach to the corresponded allele sequence(exon 2)of genbank.There is not association HLA DQB1 alleles with the patients.