RESUMEN
Objective To investigate the effect of human leukocyte antigen-G(HLA-c)on the growth and invasion of JEG-3 cell line and the role of HLA-G in the onset and development of pre-eclampsia.Methods The experiment was composed of three groups:groups of transfection,negative control and blank control.which corresponded to groups of HLA.G siRNA transfection,negative siRNA transfection and no transfection HLA-G overexpressed choriocarcinoma cell line JEG-3 was used.The role of HLA-G in JEG-3cell monolayer was examined by RNA interference technology using HLA-G specific small interfering RNA (siRNA).Expression of HLA.G was detected by reverse transeriptase-polymerase chain reaction and western blot analysis.Changes of cell cycle,apoptosis,proliferation and invasion were respectively detected by methvl thiazolyl tetrazolium(Ma r).flow cytometry assay and transwell test.Results (1)The mRNA and protein levels of HLA.G control group and blank control group were 0.0013±0.0014.0.0163 ±0.0007 and 0.1923 ±0.0384.0.2184 ±0.0153,respectively,which were both significantly different(P<0.05);the number of negative transfcction group was 0.1606±0.0133 and 0.2020±0.0132.which had no significant difference compared with blank control group(P>0.05).(2)The integral absorbance(IA)valUCB of the HLA-G transfecfion group and blank control group were 0.44±0.04 and 0.75±0.13 respectively.which was significantly different(P<0.01);the/A value of negative control group was 0.69±0.10.which was not significantly different compared with blank group(P>0.05).(3)The ratios of G2/M and S phase cells in transfection group were(10.9±2.2)%and(58.6±0.8)%respectively,significantly different compared with the blank control group[(15.4±1.9)%and(52.9±2.3)%respectively;P<0.01].(4)The ratio of early apoptosis cells in transfection group[(14.5±2.7)%]Was significantly increased compared with neg~ive[(5.3 ±1.1)%]and blank control group[(4.7±0.6)%;P<0.01].(5)The invasion number of transfecfion group and blank control group were 121±12 and 452±17 respectively.with a significant eclampsia by regulating proliferation and invasion of trophoblast.