In vivo and ex vivo study of trophoblastic angiogenic trophoblastic function in placentas from normal pregnancies, at term
The objective of this study is to better understand the regulation of trophoblast expression of pro- and antiangiogenic factors such as placenta growth factor (PlGF) or Soluble FMS like tyrosin-kinase-1 (sFlt-1), and more particularly on human differentiated trophoblastic cells from "healthy" placentas. The measurement of the variation in gene and protein expression of placental angiogenic factors will provide a better understanding of their pathophysiology. Secondary objectives are the study of trophoblastic differentiation and placental functions, and the study of the impact of chemical compounds on the biological functions of the placenta. To do this, these "healthy" placentas may be exposed to different factors that promote the occurrence of specific pregnancy pathologies such as pre-eclampsia and vascular intrauterine growth restriction (IUGR), caused by placental dysfunction. This will make it possible to test molecules and vector approaches targeted directly at the trophoblast, in order to consider therapeutic targets, which do not exist to date.
Study Type
OBSERVATIONAL
Enrollment
750
Centre Hospitalier Intercommunal de Créteil
Créteil, France
RECRUITINGLevel of placental angiogenic factors
Variation in the gene and protein expression of placental angiogenic factors on healthy placentas
Time frame: day 0
Level of sFlt-1 (Soluble FMS like tyrosin-kinase-1)
Sflt-1 levels when the placenta is exposed to factors that promote the development of vascular pregnancy diseases
Time frame: day 1
Level of PlGF (Placental Growth Factor)
PlGF levels when the placenta is exposed to factors that promote the development of vascular pregnancy diseases
Time frame: day 1
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