Evidence map›Paper›PMID 26864200›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Dynamic secretion during meiotic reentry integrates the function of the oocyte and cumulus cells.

Hakan Cakmak, Federica Franciosi, A Musa Zamah, Marcelle I Cedars, Marco Conti

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

  1. Dynamic Remodeling of Oocyte-Granulosa Cell Communication During Bovine Folliculogenesis Revealed by Transcriptomic Meta-Analyses.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Pooled it
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Article
  7. Article
  8. Interleukin-7 enhancesFrontiers in veterinary science · 2022
    Article
  9. Effect of cumulin and super-GDF9 in standard and biphasic mouse IVM.Journal of assisted reproduction and genetics · 2022
    Article
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  13. 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

5 authors.

Hakan CakmakCenter for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143.
Federica FranciosiCenter for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143.
A Musa ZamahCenter for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143.
Marcelle I CedarsCenter for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143.
Marco ContiCenter for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143 ContiM@obgyn.ucsf.edu.

Funding

Engaging University of California Stakeholders for Biorespository ResearchUL1TR000004 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANDIS, JENNIFER RUBIN · 2012 to 2015
$78.0M
Project 4: Human Endometrial Programming for Successful ImplantationP50HD055764 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BLELLOCH, ROBERT · 2014 to 2022
$16.4M
Trophoblast Differentiation in In Vivo and In Vitro Fertilized EmbryosU54HD055764 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI TRAN, NAM D · 2007 to 2013
$11.5M
WOMEN'S REPRODUCTIVE HEALTH RESEARCH CENTERK12HD001262 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Andrea Vashti Jackson · 1998 to 2026
$9.3M
REPRODUCTIVE ENDOCRINOLOGYT32HD007263 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MELLON, SYNTHIA H · 1985 to 2023
$4.1M
NCATS NIH HHS UL1 TR000004NICHD NIH HHS K12 HD001262NICHD NIH HHS K12 HD001262-12NICHD NIH HHS P50 HD055764NICHD NIH HHS P50HD055764-09NICHD NIH HHS T32 HD007263NICHD NIH HHS T32 HD007263-28NICHD NIH HHS U54 HD055764
6 · The paper itself

Abstract

The differentiation of the female gamete into a developmentally competent oocyte relies on the protected environment of the ovarian follicle. The oocyte plays a key role in establishing this microenvironment by releasing paracrine factors that control the functions of surrounding somatic cells. Growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) are secreted during follicle growth and play pivotal roles in this local regulation. The current view is that the function of these secreted factors declines in the periovulatory period when the oocyte reenters the meiotic cell cycle. Here, we provide evidence that oocyte reentry into meiosis is instead associated with a shift in the pattern of secretion with a new set of bioactive molecules synthesized before ovulation. Using interleukin 7 (IL7) as a prototypic secreted factor, we show that its secretion is dependent on activation of mRNA translation in synchrony with the cell cycle and that its translation is under the control of somatic cells. IL7 is part of a local feedback loop with the soma because it regulates cumulus cell replication. Similar conclusions are reached when IL7 secretion is measured in human follicular fluid during in vitro fertilization cycles. IL7 concentration in the follicular fluid correlates with the oocyte ability to reach the MII stage of maturation. These findings are consistent with the hypothesis that a new set of local factors is secreted by the oocyte during ovulation. These dynamic secretions are likely critical for promoting the final stages of maturation and oocyte developmental competence.

Indexed as

MeiosisCell ProliferationCumulus CellsFemaleFollicular FluidGene Expression RegulationHumansInterleukin-17OocytesProtein BiosynthesisRNA, MessengerInterleukin-17RNA, Messengerinterleukin-7mRNA translationoocyte maturationoocyte secreted factors

Identifiers

PMID26864200
PMCPMC4780620

What OpenQuestion holds

Textmetadata
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.