精巣腫瘍におけるHLA抗原の疾患感受性の検討
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精巣腫瘍におけるHLA抗原の疾患感受性について,血清学的タイピング・DNAタイピングを用い検討した.DNAタイピングにおいてDRB1 0405, DQB1 0401に疾患感受性を認めたThe role of HLA antigens in the etiology of testicular germ cell tumor has been suggested previously. Several attempts have been made to establish associations of HLA antigens in patients with testicular cancers, but have yielded inconsistent results. We studied the frequencies of HLA antigens by serological typing and DNA typing and examined the association between testicular germ cell tumors and HLA antigens. The serological expression of HLA-A, -B, -C, -DR and -DQ antigens was analyzed in 23 patients with germ cell cancers of the testis. The findings indicated a trend towards an increase in the antigen DQ4 (p < 0.05). The 13 patients were typed for HLA DRB1 and DQB1 allele by PCR-RFLP analysis. The findings revealed an increased frequency of DRB1 0405 (p < 0.01) and DQB1 0401 (p < 0.01).
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