期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 58, 期 12-13, 页码 1943-1949出版社
BIRKHAUSER VERLAG AG
DOI: 10.1007/PL00000828
关键词
pre-eclampsia; HLA-G; alternative splicing; polymorphism
Pre-eclampsia is a disorder of human pregnancy occuring in 5-10 % of all births, and represents the leading cause of infant morbidity and mortality and maternal death. In pre-eclampsia, invasion of fetal trophoblasts into maternal arteries during early pregnancy is shallow or absent. Here we examined the hypothesis that HLA-G, a non-classical class I HLA expressed in cytotrophoblasts, may act as a key gene in pre-eclampsia. We analysed HLA-G at the level of transcription and genotyped a silent CAC-CAT polymorphism in exon 3 and a 14-by insertion/deletion in the 3' untranslated region. A deficit in levels of the HLA-G3 transcript was observed in mild pre-eclampsia compared to normal placentas. The distribution of HLA-G polymorphisms was different between normal and pre-eclampsia samples. A correlation between the alteration in transcription of the HLA-G gene and certain HLA-G genotypes was also observed. Thus we provide the first evidence for a possible role of HLA-G in genetic susceptibility to, and pathogenesis of preeclampsia.
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