3D biomimetic platform reveals the first interactions of the embryo and the maternal blood vessels.
Dev Cell
; 56(23): 3276-3287.e8, 2021 12 06.
Article
em En
| MEDLINE
| ID: mdl-34741805
ABSTRACT
The process of implantation and the cellular interactions at the embryo-maternal interface are intrinsically difficult to analyze, as the implanting embryo is concealed by the uterine tissues. Therefore, the mechanisms mediating the interconnection of the embryo and the mother are poorly understood. Here, we established a 3D biomimetic culture environment that harbors the key features of the murine implantation niche. This culture system enabled direct analysis of trophoblast invasion and revealed the first embryonic interactions with the maternal vasculature. We found that implantation is mediated by the collective migration of penetrating strands of trophoblast giant cells, which acquire the expression of vascular receptors, ligands, and adhesion molecules, assembling a network for communication with the maternal blood vessels. In particular, Pdgf signaling cues promote the establishment of the heterologous contacts. Together, the biomimetic platform and our findings thereof elucidate the hidden dynamics of the early interactions at the implantation site.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Trofoblastos
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Blastocisto
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Vasos Sanguíneos
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Comunicação Celular
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Desenvolvimento Embrionário
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Embrião de Mamíferos
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Troca Materno-Fetal
Limite:
Animals
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Pregnancy
Idioma:
En
Revista:
Dev Cell
Assunto da revista:
EMBRIOLOGIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Alemanha