Evidence map›Paper›PMID 27991490›Full record

ArticleNature communications2016

Two pathways regulate cortical granule translocation to prevent polyspermy in mouse oocytes.

Liam P Cheeseman, Jérôme Boulanger, Lisa M Bond, Melina Schuh

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 66 citations in OpenAlex.

  1. Transcriptomic Dynamics Associated With In Vitro Oocyte Competence in Pigs.Reproduction in domestic animals = Zuchthygiene · 2026
    Article
  2. Article
  3. Effects of nTiOToxics · 2026
    Article
  4. Membrane Fusions During Mammalian Fertilization.Advances in experimental medicine and biology · 2026
    Review
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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

4 authors at 2 institutions in 2 countries.

Liam P CheesemanMedical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.
Jérôme BoulangerMedical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.
Lisa M BondMedical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.
Melina SchuhMedical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.
MRC Laboratory of Molecular Biology · GBMedical Research Council · GB

Funding

Medical Research Council MC_U105192711MRF_ MRF-113-0001-F-BOULA
6 · The paper itself

Abstract

An egg must be fertilized by a single sperm only. To prevent polyspermy, the zona pellucida, a structure that surrounds mammalian eggs, becomes impermeable upon fertilization, preventing the entry of further sperm. The structural changes in the zona upon fertilization are driven by the exocytosis of cortical granules. These translocate from the oocyte's centre to the plasma membrane during meiosis. However, very little is known about the mechanism of cortical granule translocation. Here we investigate cortical granule transport and dynamics in live mammalian oocytes by using Rab27a as a marker. We show that two separate mechanisms drive their transport: myosin Va-dependent movement along actin filaments, and an unexpected vesicle hitchhiking mechanism by which cortical granules bind to Rab11a vesicles powered by myosin Vb. Inhibiting cortical granule translocation severely impaired the block to sperm entry, suggesting that translocation defects could contribute to miscarriages that are caused by polyspermy.

Indexed as

FertilizationAnimalsBiomarkersCytoplasmic GranulesFemaleFertilization in VitroGene Expression RegulationGene Knockdown TechniquesMaleMiceOocytesrab27 GTP-Binding ProteinsRNA, MessengerRNA, Small InterferingSpermatozoaSperm-Ovum InteractionsBiomarkersRab27a protein, mouserab27 GTP-Binding ProteinsRNA, MessengerRNA, Small Interfering

Identifiers

PMID27991490
PMCPMC5187413
OpenAlexW2566759407

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.