Evidence map›Paper›PMID 33664246›Full record

ArticleNature communications2021

Epidermal growth factor receptor signaling uncouples germ cells from the somatic follicular compartment at ovulation.

Laleh Abbassi, Stephany El-Hayek, Karen Freire Carvalho, Wusu Wang, Qin Yang, Sofia Granados-Aparici, Rafael Mondadori, Vilceu Bordignon, Hugh J Clarke

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
11.0field-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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. hnRNPU Safeguards Oocyte Development and Female Fertility via Regulation of Alternative Splicing.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  7. Review
  8. Protein Kinase C Regulates Meiosis in Mammalian Oocytes.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  9. Intercellular diffusion of cyclic nucleotides followed by gap junction closure restarts meiosis in mouse preovulatory follicles.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

Laleh AbbassiResearch Institute of the McGill University Health Centre, Montreal, Canada.
Stephany El-HayekResearch Institute of the McGill University Health Centre, Montreal, Canada.
Karen Freire CarvalhoResearch Institute of the McGill University Health Centre, Montreal, Canada.
Wusu WangResearch Institute of the McGill University Health Centre, Montreal, Canada.ORCID http://orcid.org/0000-0001-7484-5944
Qin YangResearch Institute of the McGill University Health Centre, Montreal, Canada.
Sofia Granados-ApariciResearch Institute of the McGill University Health Centre, Montreal, Canada.
Rafael MondadoriDepartment of Animal Science, McGill University, Montreal, Canada.ORCID http://orcid.org/0000-0003-0578-8469
Vilceu BordignonDepartment of Animal Science, McGill University, Montreal, Canada.ORCID http://orcid.org/0000-0001-7076-7707
Hugh J ClarkeResearch Institute of the McGill University Health Centre, Montreal, Canada. Hugh.clarke@mcgill.ca.ORCID http://orcid.org/0000-0003-2626-244X
McGill University Health Centre · CAMcGill University · CACentre for Arab Genomic Studies · AEUniversity Health Network · CA

Funding

CIHR PJT 153122
6 · The paper itself

Abstract

Germ cells are physically coupled to somatic support cells of the gonad during differentiation, but this coupling must be disrupted when they are mature, freeing them to participate in fertilization. In mammalian females, coupling occurs via specialized filopodia that project from the ovarian follicular granulosa cells to the oocyte. Here, we show that signaling through the epidermal growth factor receptor (EGFR) in the granulosa, which becomes activated at ovulation, uncouples the germ and somatic cells by triggering a massive and temporally synchronized retraction of the filopodia. Although EGFR signaling triggers meiotic maturation of the oocyte, filopodial retraction is independent of the germ cell state, being regulated solely within the somatic compartment, where it requires ERK-dependent calpain-mediated loss of filopodia-oocyte adhesion followed by Arp2/3-mediated filopodial shortening. By uncovering the mechanism regulating germ-soma uncoupling at ovulation, our results open a path to improving oocyte quality in human and animal reproduction.

Indexed as

Actin-Related Protein 2-3 ComplexAnimalsCalpainCell AdhesionCell CommunicationCells, CulturedErbB ReceptorsFemaleGranulosa CellsMeiosisMiceOocytesOvulationPseudopodiaSignal TransductionSwineActin-Related Protein 2-3 ComplexCalpainEGFR protein, mouseErbB Receptors

Identifiers

PMID33664246
PMCPMC7933413
OpenAlexW3135840271

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.