A proteomic analysis of placental trophoblastic cells in preeclampsia-eclampsia.

Abstract:

:To explore the proteomic changes of placental trophoblastic cells in preeclampsia-eclampsia (PE), placental trophoblastic cells from normally pregnant women and women with hypertension during gestational period were prepared by laser capture microdissection (LCM), and proteins isolated from these cells were subjected to labeling and proteolysis with isotope-coded affinity tag reagent. A qualitative and quantitative analysis of the proteome expression of placental trophoblastic cells was made using two-dimensional liquid chromatography tandem mass spectrometry (2D LC-MS/MS). A total of 831 proteins in placental trophoblastic cells were identified by combined use of LCM technique and 2D LC-MS/MS. The result was superior to that of conventional two-dimensional electrophoresis method. There were marked differences in 169 proteins of placental trophoblastic cells between normally pregnant women and women with PE. Of 70 (41.4 %) proteins with more than twofold differences, 31 proteins were down-regulated, and 39 were up-regulated in placental trophoblastic cells of the woman with PE. Laminin expression in placenta trophoblastic cells of women with PE was significantly down-regulated as confirmed by Western blot analysis. These findings provide insights into the proteomic changes in placental trophoblastic cells in response to PE and may identify novel protein targets associated with the pathogenesis of PE.

journal_name

Cell Biochem Biophys

authors

Ma K,Jin H,Hu R,Xiong Y,Zhou S,Ting P,Cheng Y,Yang Y,Yang P,Li X

doi

10.1007/s12013-013-9792-4

subject

Has Abstract

pub_date

2014-06-01 00:00:00

pages

247-58

issue

2

eissn

1085-9195

issn

1559-0283

journal_volume

69

pub_type

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