Evidence map›Paper›PMID 33941697›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Hindbrain neuropore tissue geometry determines asymmetric cell-mediated closure dynamics in mouse embryos.

Eirini Maniou, Michael F Staddon, Abigail R Marshall, Nicholas D E Greene, Andrew J Copp, Shiladitya Banerjee, Gabriel L Galea

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. A lateral tension model for mouse cranial neural tube closure.bioRxiv : the preprint server for biology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The cellular dynamics of neural tube formation.Biochemical Society transactions · 2023
    Article
  14. Article
  15. Morphological phenotyping after mouse whole embryo culture.Frontiers in cell and developmental biology · 2023
    Review
  16. Article
  17. Article
  18. Article
  19. Leading-edge elongation by follower cell interruption in advancing epithelial cell sheets.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  20. Article
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

7 authors at 3 institutions in 2 countries.

Eirini ManiouDepartment of Developmental Biology and Cancer Researching and Teaching, University College London Great Ormond Street Institute of Child Health, WC1N 1EH London, United Kingdom.
Michael F StaddonDepartment of Physics and Astronomy, University College London, WC1E 6BT London, United Kingdom.
Abigail R MarshallDepartment of Developmental Biology and Cancer Researching and Teaching, University College London Great Ormond Street Institute of Child Health, WC1N 1EH London, United Kingdom.
Nicholas D E GreeneDepartment of Developmental Biology and Cancer Researching and Teaching, University College London Great Ormond Street Institute of Child Health, WC1N 1EH London, United Kingdom.ORCID 0000-0002-4170-5248
Andrew J CoppDepartment of Developmental Biology and Cancer Researching and Teaching, University College London Great Ormond Street Institute of Child Health, WC1N 1EH London, United Kingdom.
Shiladitya BanerjeeDepartment of Physics, Carnegie Mellon University, Pittsburgh, PA 15213; shiladtb@andrew.cmu.edu g.galea@ucl.ac.uk.
Gabriel L GaleaDepartment of Developmental Biology and Cancer Researching and Teaching, University College London Great Ormond Street Institute of Child Health, WC1N 1EH London, United Kingdom; shiladtb@andrew.cmu.edu g.galea@ucl.ac.uk.ORCID 0000-0003-2515-1342
University College London · GBCarnegie Mellon University · USRoyal Veterinary College · GB

Funding

Medical Research Council G0801124National Centre for the Replacement, Refinement and Reduction of Animals in Research NC/M001555/1Wellcome TrustWellcome Trust 107474/Z/15/ZWellcome Trust 211112/Z/18/Z
6 · The paper itself

Abstract

Gap closure is a common morphogenetic process. In mammals, failure to close the embryonic hindbrain neuropore (HNP) gap causes fatal anencephaly. We observed that surface ectoderm cells surrounding the mouse HNP assemble high-tension actomyosin purse strings at their leading edge and establish the initial contacts across the embryonic midline. Fibronectin and laminin are present, and tensin 1 accumulates in focal adhesion-like puncta at this leading edge. The HNP gap closes asymmetrically, faster from its rostral than caudal end, while maintaining an elongated aspect ratio. Cell-based physical modeling identifies two closure mechanisms sufficient to account for tissue-level HNP closure dynamics: purse-string contraction and directional cell motion implemented through active crawling. Combining both closure mechanisms hastens gap closure and produces a constant rate of gap shortening. Purse-string contraction reduces, whereas crawling increases gap aspect ratio, and their combination maintains it. Closure rate asymmetry can be explained by asymmetric embryo tissue geometry, namely a narrower rostral gap apex, whereas biomechanical tension inferred from laser ablation is equivalent at the gaps' rostral and caudal closure points. At the cellular level, the physical model predicts rearrangements of cells at the HNP rostral and caudal extremes as the gap shortens. These behaviors are reproducibly live imaged in mouse embryos. Thus, mammalian embryos coordinate cellular- and tissue-level mechanics to achieve this critical gap closure event.

Indexed as

AnencephalyAnimalsCadherinsEmbryo, MammalianFemaleFibronectinsLamininMaleMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicMicroscopy, ConfocalNerve Tissue ProteinsNeural CrestNeural TubeCadherinsFibronectinsLamininLtap protein, mouseNerve Tissue Proteinsbiomechanicshindbrain neuroporemouseneural tubephysical modeling

Identifiers

PMID33941697
PMCPMC8126771
OpenAlexW3157120990

What Socratic 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 Socratic graph.