Expression of suppressors of cytokine signaling in mater-fetal interface of human first trimester gestation / 中国免疫学杂志

ABSTRACT

Objective:To investigate the mRNA and protein expression of suppressors of cytokine signaling in human villa and decidua of first trimester gestation.Methods:We first obtained villous tissues and decidual tissues from 38 women who had undergone selective termination at 7-9 weeks of normal gestation.The transcripts of SOCS1,SOCS2,SOCS3 in villous tissues and decidual tissues were detected by using semi-quantitative reverse transcriptase polymerase chain reaction.The mRNA of SOCS1,SOCS2,SOCS3 from cultured trophoblasts and decidual stromal cells were detected.Also the protein expression of 35 pregnant women were detected by western blot.Immunohistochemistry analysis revealed the location of SOCS1,SOCS2,SOCS3 in materno-fetal interface.IL-10 and IFN-? secreted by cells in vitro were detected by ELISA.Results:The expression of SOCS1,SOCS2,SOCS3 were found in mater-fetal interface,while positive expression of SOCS3 in villi/decidua was 73.7%/71.1%,and that of SOCS2 was 50.0%/39.5%,then SOCS1 expression was 34.2%/31.6%.The protein expression of SOCS1,SOCS2,SOCS3 were similar to the transcription level.SOCS1,SOCS2,SOCS3 were mainly expressed in villi and decidual stroma.Trophoblasts and decidual stromal cells were not found the expression of SOCS1,but the low level mRNA of SOCS2,SOCS3 without serum,and IL-10 secreted by them increased significantly(P