Evidence map›Paper›PMID 34741805›Full record

ArticleDevelopmental cell2021

3D biomimetic platform reveals the first interactions of the embryo and the maternal blood vessels.

Niraimathi Govindasamy, Hongyan Long, Hyun-Woo Jeong, Ratish Raman, Burak Özcifci, Simone Probst, Sebastian J Arnold, Kristina Riehemann, Adrian Ranga, Ralf H Adams and 2 more

Abstract read
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In one paragraph

Article in Developmental cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Mechanical cues regulateMaterials today. Bio · 2026
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  6. 3D In Vitro Culture of Early Mouse Embryos and Trophoblast Tissue Explants.Methods in molecular biology (Clifton, N.J.) · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Niraimathi GovindasamyEmbryonic Self-Organization research group, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
Hongyan LongBioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
Hyun-Woo JeongDepartment of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
Ratish RamanEmbryonic Self-Organization research group, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
Burak ÖzcifciCenter for Nanotechnology (CeNTech) und Physikalisches Institut Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany.
Simone ProbstInstitute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, and Signaling Research Centers BIOSS and CIBSS, University of Freiburg, Germany.
Sebastian J ArnoldInstitute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, and Signaling Research Centers BIOSS and CIBSS, University of Freiburg, Germany.
Kristina RiehemannCenter for Nanotechnology (CeNTech) und Physikalisches Institut Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany.
Adrian RangaLaboratory of Bioengineering and Morphogenesis, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium.
Ralf H AdamsDepartment of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
Britta TrappmannBioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany. Electronic address: britta.trappmann@mpi-muenster.mpg.de.
Ivan BedzhovEmbryonic Self-Organization research group, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany. Electronic address: ivan.bedzhov@mpi-muenster.mpg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

Cell CommunicationEmbryonic DevelopmentMaternal-Fetal ExchangeAnimalsBiomimeticsBlastocystBlood VesselsCell Culture TechniquesCell MovementEmbryo ImplantationEmbryo, MammalianFemaleGiant CellsMiceMice, Inbred C57BLMice, Inbred CBA3D culturebiomimeticblastocysthydrogelimplantationmicrofluidicsmousePdgftrophoblastvasculature

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.