Evidence map›Paper›PMID 35439430›Full record

ArticleCell stem cell2022

Amniogenesis occurs in two independent waves in primates.

Maria Rostovskaya, Simon Andrews, Wolf Reik, Peter J Rugg-Gunn

Open access · hybridAbstract read
In one paragraph

Article in Cell stem cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
8.0field-weighted citation impact, top 1% of its field
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

68 citing papers in PubMed, 99 citations in OpenAlex.

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  19. Pluripotent cell states and fates in human embryo models.Development (Cambridge, England) · 2025
    Review
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8 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Maria RostovskayaEpigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK. Electronic address: maria.rostovskaya@babraham.ac.uk.
Simon AndrewsBioinformatics Group, Babraham Institute, Cambridge CB22 3AT, UK.
Wolf ReikEpigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Altoslabs Cambridge Institute, Cambridge CB21 6GP, UK; Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1QR, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Wellcome-MRC Stem Cell Institute, Cambridge CB2 0AW, UK. Electronic address: wolf.reik@babraham.ac.uk.
Peter J Rugg-GunnEpigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Wellcome-MRC Stem Cell Institute, Cambridge CB2 0AW, UK. Electronic address: peter.rugg-gunn@babraham.ac.uk.
Babraham Institute · GBUniversity of Cambridge · GBWellcome Sanger Institute · GB

Funding

Biotechnology and Biological Sciences Research Council BBS/E/B/000C0421Biotechnology and Biological Sciences Research Council BBS/E/B/000C0422Medical Research Council MR/R015724/1Medical Research Council MR/T011769/1Medical Research Council MR/V02969X/1Wellcome TrustWellcome Trust 215116/Z/18/Z
6 · The paper itself

Abstract

In primates, the amnion emerges through cavitation of the epiblast during implantation, whereas in other species it does so later at gastrulation by the folding of the ectoderm. How the mechanisms of amniogenesis diversified during evolution remains unknown. Unexpectedly, single-cell analysis of primate embryos uncovered two transcriptionally and temporally distinct amniogenesis waves. To study this, we employed the naive-to-primed transition of human pluripotent stem cells (hPSCs) to model peri-implantation epiblast development. Partially primed hPSCs transiently gained the ability to differentiate into cavitating epithelium that transcriptionally and morphologically matched the early amnion, whereas fully primed hPSCs produced cells resembling the late amnion instead, thus recapitulating the two independent differentiation waves. The early wave follows a trophectoderm-like pathway and encompasses cavitation, whereas the late wave resembles an ectoderm-like route during gastrulation. The discovery of two independent waves explains how amniogenesis through cavitation could emerge during evolution via duplication of the pre-existing trophectoderm program.

Indexed as

Pluripotent Stem CellsAnimalsCell DifferentiationEctodermGerm LayersPrimatesamniondifferentiationhuman embryonic developmenthuman pluripotent stem cellspluripotency states transition

Identifiers

PMID35439430
PMCPMC9627701
OpenAlexW4223938176

What OpenQuestion holds

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Registered trials

None linked

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.