Wang pingzhen, Shan Nan, Wang Yiming, et al. Expression and function of LAMA4 in the placentas and trophoblast[J]. Journal of Chongqing Medical University, 2016,41(7):694-698.
Wang pingzhen, Shan Nan, Wang Yiming, et al. Expression and function of LAMA4 in the placentas and trophoblast[J]. Journal of Chongqing Medical University, 2016,41(7):694-698. DOI: 10.13406/j.cnki.cyxb.001007.
Objective:To investigate the expression of the laminin alpha4(LAMA4)gene and its effect on invasion of HTR-8/SVneo cells and its role in the pathogenesis of preeclampsia. Methods:Twenty-two patients with severe pre-eclampsia and 20 normal pregnant women were investigated. The expression of LAMA4 was determined by immunohistochemistry. Using RNA interference technology
the trophoblast cells were divided into the normal control group
hypoxia/reoxygenation(H/R)oxygen culture group and LAMA4 interference group. Expression of lama4 in each group was detected by the immune fluorescence and Western blot. The invasive ability of the HTR-8/SVneo cells was tested by transwell. Results:(1)The expression of LAMA4 in severe pre-eclampsia group was dramatically lower than that of control group.(2)The expression of LAMA4 in HTR-8/SVneo cells was significantly decreased after H/R and si RNA treatments.(3)The invasive ability of HTR-8/SVneo cells was deduced after the deduction of LAMA4 expression. Conclusion:Damage of LAMA4 is probably involved in the mechanism of onset of preeclampsia by regulating invasion of trophoblast.