Modeling the Progression of Placental Transport from Early‐ to Late‐Stage Pregnancy by Tuning Trophoblast Differentiation and Vascularization

Abstract: The early‐stage placental barrier is characterized by a lack of fetal circulation and by a thick trophoblastic barrier, whereas the later‐stage placenta consists of vascularized chorionic villi encased in a thin, differentiated trophoblast layer, ideal for nutrient transport. In this work, predictive models of early‐ and late‐stage placental transport are created using blastocyst‐derived placental stem cells (PSCs) by modulating PSC differentiation and model vascularization. PSC differentiation results in a thinner, fused trophoblast layer, as well as an increase in human chorionic gonadotropin secretion, barrier permeability, and secretion of certain inflammatory cytokines, which are consistent with in vivo findings. Further, gene expression confirms this shift toward a differentiated trophoblast subtype. Vascularization results in a molecule type‐ and size‐dependent change in dextran and insulin permeability. These results demonstrate that trophoblast differentiation and vascularization have critical effects on placental barrier permeability and that this model can be used as a predictive measure to assess fetal toxicity of xenobiotic substances at different stages of pregnancy.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Modeling the Progression of Placental Transport from Early‐ to Late‐Stage Pregnancy by Tuning Trophoblast Differentiation and Vascularization ; day:07 ; month:11 ; year:2023 ; extent:18
Advanced healthcare materials ; (07.11.2023) (gesamt 18)

Urheber
Kouthouridis, Sonya
Sotra, Alexander
Khan, Zaim
Alvarado, Justin
Raha, Sandeep
Zhang, Boyang

DOI
10.1002/adhm.202301428
URN
urn:nbn:de:101:1-2023110814044330686236
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 11:00 MESZ

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Beteiligte

  • Kouthouridis, Sonya
  • Sotra, Alexander
  • Khan, Zaim
  • Alvarado, Justin
  • Raha, Sandeep
  • Zhang, Boyang

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