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Position: Home > Articles > Progress on Candidate Genes for H-Y Antigens China Animal Husbandry & Veterinary Medicine 2011,38 (10) 70-75

H-Y抗原候选基因的研究进展

作  者:
谭庆辉;王乃东;薛立群
单  位:
湖南农业大学动物医学院
关键词:
H-Y抗原;候选基因;抗原肽
摘  要:
雄性特异性组织相容性抗原(male specific minor histompatibility antigens,H-Y抗原)是由Y染色体上的基因编码,在雄性动物细胞中普遍表达(包括胚胎和滋养层细胞)。H-Y抗原不仅能引起基因型相同的雌性动物排斥雄性组织,也能导致人白细胞抗原匹配干细胞移植术后出现移植抗宿主性疾病(GVH)。细胞毒性T淋巴细胞检测到几个不同的H-Y抗原表位,这些肽是从胞内蛋白分离出来,由主要组织相容性复合分子结合呈递在细胞表面。H-Y抗原肽与人白细胞抗原Ⅰ类和Ⅱ类分子特异结合参与免疫反应,从而影响移植结果。近年来越来越多的文献报道了H-Y抗原的相关研究,作者主要综述编码H-Y抗原的相关候选基因,并对它在疾病等方面的前景作出了一些展望。
译  名:
Progress on Candidate Genes for H-Y Antigens
作  者:
TAN Qing-hui,WANG Nai-dong,XUE Li-qun(College of Veterinary Medicine,Hunan Agricultural University,Changsha 410128,China)
关键词:
H-Y antigens;candidate genes;antigen peptides
摘  要:
Male specific minor histocomp atibility(H-Y) antigens are encoded by genes on the Y-chromosome.Generally,the minor H-Y antigens are ubiquitously expressed in male cells including fetal and trophoblast cells.It causes rejection of male tissue grafts by genotypically identical female mice and contributes to graft rejection or graft-versus-host(GVH) disease after HLA-identical stem cell transplantation.Cytotoxicity lymphocytic cells detected several distinct H-Y epitopes,and these are probably peptides,derived from intracellular protein,that are presented at the cell surface with major histocompatibility complex molecules.Processed peptide fragments of the H-Y proteins bind to HLA class Ⅰand class Ⅱ molecules and are presented to the immune system,and finally their possible impact on the outcome of transplantation.In recent years,more and more studies of the H-Y antigen were reported in the research.This review reflects some candidate genes of encoding male-specific histocompatibility antigen,and the foregrounds of the research in human and diseases are prospected.

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