Evidence map›Paper›PMID 31952078›Full record

ArticleThe Journal of cell biology2020

Active diffusion in oocytes nonspecifically centers large objects during prophase I and meiosis I.

Alexandra Colin, Gaëlle Letort, Nitzan Razin, Maria Almonacid, Wylie Ahmed, Timo Betz, Marie-Emilie Terret, Nir S Gov, Raphaël Voituriez, Zoher Gueroui and 1 more

Abstract readVideo-Audio Media
In one paragraph

Article in The Journal of cell biology, 2020. 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
–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

21 citing papers in PubMed.

  1. From Cytoskeletal Remodeling to Oocyte Quality: The Emerging Role of Mechanics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  11. Regulation of organelle size and organization during development.Seminars in cell & developmental biology · 2023
    Review
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  15. Contribution of cytoplasm viscoelastic properties to mitotic spindle positioning.Proceedings of the National Academy of Sciences of the United States of America · 2022
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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

11 authors.

Alexandra ColinDepartment of Chemistry, Ecole Normale Supérieure, Paris Sciences et Lettres Research University, CNRS-ENS-UPMC 24, Paris, France.
Gaëlle LetortCenter for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Paris Sciences et Lettres Research University, Equipe Labellisée Fondation pour la Recherche Médicale, Paris, France.
Nitzan RazinDepartment of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel.
Maria AlmonacidCenter for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Paris Sciences et Lettres Research University, Equipe Labellisée Fondation pour la Recherche Médicale, Paris, France.
Wylie AhmedDepartment of Physics, California State University, Fullerton, CA.
Timo BetzInstitute of Cell Biology, Cells in Motion Interfaculty Center, Centre for Molecular Biology of Inflammation, Münster, Germany.
Marie-Emilie TerretCenter for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Paris Sciences et Lettres Research University, Equipe Labellisée Fondation pour la Recherche Médicale, Paris, France.
Nir S GovDepartment of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel.
Raphaël VoituriezUMR 8237 and UMR7600-CNRS/Sorbonne Université, Paris, France.
Zoher GuerouiDepartment of Chemistry, Ecole Normale Supérieure, Paris Sciences et Lettres Research University, CNRS-ENS-UPMC 24, Paris, France.
Marie-Hélène VerlhacCenter for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Paris Sciences et Lettres Research University, Equipe Labellisée Fondation pour la Recherche Médicale, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleus centering in mouse oocytes results from a gradient of actin-positive vesicle activity and is essential for developmental success. Here, we analyze 3D model simulations to demonstrate how a gradient in the persistence of actin-positive vesicles can center objects of different sizes. We test model predictions by tracking the transport of exogenous passive tracers. The gradient of activity induces a centering force, akin to an effective pressure gradient, leading to the centering of oil droplets with velocities comparable to nuclear ones. Simulations and experimental measurements show that passive particles subjected to the gradient exhibit biased diffusion toward the center. Strikingly, we observe that the centering mechanism is maintained in meiosis I despite chromosome movement in the opposite direction; thus, it can counteract a process that specifically off-centers the spindle. In conclusion, our findings reconcile how common molecular players can participate in the two opposing functions of chromosome centering versus off-centering.

Indexed as

MeiosisMeiotic Prophase IModels, BiologicalActinsActive Transport, Cell NucleusAnimalsCell NucleusCells, CulturedComputer SimulationDiffusionFemaleLipid DropletsMiceNumerical Analysis, Computer-AssistedOocytesOrganelle SizeActins

Identifiers

PMID31952078
PMCPMC7054987

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.