NDLI: Human leukocyte antigen G and miR-148a are associated with the pathogenesis of intrahepatic cholestasis of pregnancy

Content Provider	PubMed Central
Author	Zhang, Xiaowen Ling, Yu Ding, Yiling
Copyright Year	2014
Abstract	Intrahepatic cholestasis of pregnancy (ICP) occurs mainly during the third trimester of gestation and is characterized by pruritus and elevated serum bile acid levels. The pathogenesis of this disease has yet to be elucidated. The nonclassical human leukocyte antigen G (HLA-G) is a trophoblast-specific molecule and is involved in the regulation of maternal immune response at the maternal-fetal interface. MicroRNAs (miRNAs) have an important role in a number of physiological and pathological processes. However, the roles of HLA-G and miRNAs in immune response in the pathogenesis of ICP have yet to be elucidated. In the present study, the expression of HLA-G and miR-148a in the placenta of patients with ICP was investigated. The mRNA and protein expression levels of HLA-G were markedly reduced in the placenta of patients with ICP compared with the levels in healthy pregnant females, and were negatively correlated with serum total bile acid (TBA) levels. It was also observed that miR-148a levels were markedly upregulated in the placenta and peripheral blood of patients with ICP. Furthermore, the mRNA and protein expression levels of HLA-G in the placenta were negatively correlated with the miR-148 levels in the placenta, but not in the peripheral blood, while the miR-148a levels in the placenta were positively correlated with serum TBA levels. These results suggest that the downregulation of HLA-G is probably caused by the upregulation of miR-148a in the placenta, and miR-148a in the placenta may contribute to the pathogenesis of ICP via the inhibition of HLA-G expression.
Related Links	http://dx.doi.org/10.3892/etm.2014.1986
Ending Page	1706
Page Count	6
Starting Page	1701
File Format	PDF
ISSN	17920981
e-ISSN	17921015
Journal	Experimental and Therapeutic Medicine
Issue Number	6
Volume Number	8
Language	English
Publisher	D.A. Spandidos
Publisher Date	2014-09-01
Access Restriction	Open
Rights Holder	D.A. Spandidos
Subject Keyword	Immunology and Microbiology (miscellaneous) Cancer Research Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cancer Research 2400/2401

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