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Extravillous trophoblast apoptosis - A workshop report

Lookup NU author(s): Dr Judith Bulmer


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During normal pregnancy, extravillous trophoblast cells invade maternal uterine tissues. The interstitial trophoblast penetrates decidual tissues reaching the inner third of the myometrium. A subset of the interstitial trophoblast, the intramural/endovascular trophoblast transforms uterine spiral arteries into large-bore conduits to enable the adequate supply of nutrients and oxygen to the placenta and thus the fetus. Control of invasion is still a mystery and therefore, in this workshop report already existing concepts as well as new models are discussed. Maternal cells such as macrophages and endothelial cells have a clear impact on trophoblast invasion and apoptosis. However, the trophoblast cells need to be susceptible to undergo apoptosis. Thus, an intrinsic program within the trophoblast needs to be activated before induction from the outside can be successful. Quantification of apoptosis further clarified that apoptosis of interstitial trophoblast is not the ultimate means to lead to pathologically shallow invasion. On the other hand, apoptosis of intramural/endovascular trophoblast seems to be highly relevant for a correct transformation of spiral arteries. © 2005 Published by IFPA and Elsevier Ltd.

Publication metadata

Author(s): Huppertz B, Hemmings D, Renaud SJ, Bulmer JN, Dash P, Chamley LW

Publication type: Article

Publication status: Published

Journal: Placenta

Year: 2005

Volume: 26

Pages: S46-S48

ISSN (print): 0143-4004

ISSN (electronic): 1532-3102

Publisher: Elsevier Ltd


DOI: 10.1016/j.placenta.2005.02.002

PubMed id: 15837067


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