期刊
MOLECULAR HUMAN REPRODUCTION
卷 7, 期 12, 页码 1167-1172出版社
OXFORD UNIV PRESS
DOI: 10.1093/molehr/7.12.1167
关键词
human leukocyte antigen; recurrent miscarriage; HLA-G
资金
- NICHD NIH HHS [HD27626, HD21244] Funding Source: Medline
HLA-G is a non-classical human leukocyte antigen expressed primarily in fetal tissues at the maternal-fetal interface. This expression pattern is unique among HLA genes and suggests that HLA-G may be involved in interactions that are critical in establishing and/or maintaining pregnancy. To evaluate the role of polymorphisms at this locus in maternal-fetal interactions, 113 couples with unexplained recurrent miscarriage were genotyped for seven polymorphisms that define 12 HLA-G alleles. Logistic regression analysis was used to assess whether HLA-G genotypes were associated with an increased risk for a subsequent miscarriage. The presence of an HLA-G*0104 or HLA-G*0105N allele in either partner was significantly associated with an increased risk for miscarriage, after adjustment for maternal age, number of previous miscarriages, history of a previous liveborn, and treatment with paternal mononuclear cells. The *0104 and *0105N alleles are defined by polymorphisms,in the alpha -2 domain and encode protein variants that are present only in the full-length HLA-G1 protein. The significant genotype-specific risk in this population suggests that allelic variation in the alpha -2 domain of the HLA-G1 isoforms contributes to recurrent miscarriage.
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