Evidence map›Paper›PMID 25385589›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Follicle-stimulating hormone regulates expression and activity of epidermal growth factor receptor in the murine ovarian follicle.

Stephany El-Hayek, Isabelle Demeestere, Hugh J Clarke

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
8.7field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 93 citations in OpenAlex.

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  20. Effect of cumulin and super-GDF9 in standard and biphasic mouse IVM.Journal of assisted reproduction and genetics · 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

3 authors at 1 institution in 2 countries.

Stephany El-HayekDepartments of Obstetrics and Gynecology, Biology, and Research Institute-McGill University Health Centre; Montreal, QC, Canada H3A 1A1; and.
Isabelle DemeestereDepartments of Obstetrics and Gynecology, Research Institute-McGill University Health Centre; Montreal, QC, Canada H3A 1A1; and Research Laboratory on Human Reproduction Fertility Clinic, Université Libre de Bruxelles Erasme, 1070 Brussels, Belgium.
Hugh J ClarkeDepartments of Obstetrics and Gynecology, Biology, and Research Institute-McGill University Health Centre; Montreal, QC, Canada H3A 1A1; and Medicine, McGill University, Montreal, QC, Canada H3A 1A1; hugh.clarke@mcgill.ca.
McGill University Health Centre · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Fertility depends on the precise coordination of multiple events within the ovarian follicle to ensure ovulation of a fertilizable egg. FSH promotes late follicular development, including expression of luteinizing hormone (LH) receptor by the granulosa cells. Expression of its receptor permits the subsequent LH surge to trigger the release of ligands that activate EGF receptors (EGFR) on the granulosa, thereby initiating the ovulatory events. Here we identify a previously unknown role for FSH in this signaling cascade. We show that follicles of Fshb(-/-) mice, which cannot produce FSH, have a severely impaired ability to support two essential EGFR-regulated events: expansion of the cumulus granulosa cell layer that encloses the oocyte and meiotic maturation of the oocyte. These defects are not caused by an inability of Fshb(-/-) oocytes to produce essential oocyte-secreted factors or of Fshb(-/-) cumulus cells to respond. In contrast, although expression of both Egfr and EGFR increases during late folliculogenesis in Fshb(+/-) females, these increases fail to occur in Fshb(-/-) females. Remarkably, supplying a single dose of exogenous FSH activity to Fshb(-/-) females is sufficient to increase Egfr and EGFR expression and to restore EGFR-dependent cumulus expansion and oocyte maturation. These studies show that FSH induces an increase in EGFR expression during late folliculogenesis and provide evidence that the FSH-dependent increase is necessary for EGFR physiological function. Our results demonstrate an unanticipated role for FSH in establishing the signaling axis that coordinates ovulatory events and may contribute to the diagnosis and treatment of some types of human infertility.

Indexed as

AnimalsErbB ReceptorsFemaleFollicle Stimulating HormoneGene Expression RegulationMiceMice, KnockoutOvarian FollicleErbB ReceptorsFollicle Stimulating HormoneEGFRfollicleFSHgranulosaovary

Identifiers

PMID25385589
PMCPMC4250110
OpenAlexW2153858086

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.