Evidence map›Paper›PMID 27332136›Full record

ArticleBiophysical journal2016

Micromechanical Analysis of the Hyaluronan-Rich Matrix Surrounding the Oocyte Reveals a Uniquely Soft and Elastic Composition.

Xinyue Chen, Rita Bonfiglio, Suneale Banerji, David G Jackson, Antonietta Salustri, Ralf P Richter

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 16% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  12. Cilia take the egg on a magic carpet ride.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  16. The Inter-α-Trypsin Inhibitor Family: Versatile Molecules in Biology and Pathology.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 5 countries.

Xinyue ChenCIC biomaGUNE, San Sebastian, Spain; Max Planck Institute for Intelligent Systems, Stuttgart, Germany.
Rita BonfiglioDepartment of Biomedicine and Prevention, Faculty of Medicine, University of Rome Tor Vergata, Rome, Italy.
Suneale BanerjiMRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.
David G JacksonMRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.
Antonietta SalustriDepartment of Biomedicine and Prevention, Faculty of Medicine, University of Rome Tor Vergata, Rome, Italy.
Ralf P RichterCIC biomaGUNE, San Sebastian, Spain; Max Planck Institute for Intelligent Systems, Stuttgart, Germany; Laboratory of Interdisciplinary Physics, University Grenoble Alpes-CNRS, Grenoble, France. Electronic address: rrichter@cicbiomagune.es.
Max Planck Institute for Intelligent Systems · DEUniversity of Oxford · GBUniversity of Rome Tor Vergata · IT

Funding

European Research Council 306435Medical Research Council MC_UU_12010/2
6 · The paper itself

Abstract

The cumulus cell-oocyte complex (COC) matrix is an extended coat that forms around the oocyte a few hours before ovulation and plays vital roles in oocyte biology. Here, we analyzed the micromechanical response of mouse COC matrix by colloidal-probe atomic force microscopy. We found that the COC matrix is elastic insofar as it does not flow and its original shape is restored after force release. At the same time, the COC matrix is extremely soft. Specifically, the most compliant parts of in vivo and in vitro expanded COC matrices yielded Young's modulus values of 0.5 ± 0.1 Pa and 1.6 ± 0.3 Pa, respectively, suggesting both high porosity and a large mesh size (≥100 nm). In addition, the elastic modulus increased progressively with indentation. Furthermore, using optical microscopy to correlate these mechanical properties with ultrastructure, we discovered that the COC is surrounded by a thick matrix shell that is essentially devoid of cumulus cells and is enhanced upon COC expansion in vivo. We propose that the pronounced nonlinear elastic behavior of the COC matrix is a consequence of structural heterogeneity and serves important functions in biological processes such as oocyte transport in the oviduct and sperm penetration.

Indexed as

AnimalsElasticityExtracellular MatrixFemaleHyaluronic AcidMiceMicroscopy, Atomic ForceOocytesOptical ImagingViscosityHyaluronic Acid

Identifiers

PMID27332136
PMCPMC4919725
OpenAlexW2462111704

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.