Evidence map›Paper›PMID 32384146›Full record

ArticleEndocrinology2020

Cellular Heterogeneity of the Luteinizing Hormone Receptor and Its Significance for Cyclic GMP Signaling in Mouse Preovulatory Follicles.

Valentina Baena, Corie M Owen, Tracy F Uliasz, Katie M Lowther, Siu-Pok Yee, Mark Terasaki, Jeremy R Egbert, Laurinda A Jaffe

Open access · greenAbstract readValidation Study
In one paragraph

Article in Endocrinology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Intercellular diffusion of cyclic nucleotides followed by gap junction closure restarts meiosis in mouse preovulatory follicles.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Review
  8. Article
  9. Electro-Metabolic Coupling of Cumulus-Oocyte Complex.International journal of molecular sciences · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. A single-cell gene expression atlas of human follicular aspirates: Identification of leukocyte subpopulations and their paracrine factors.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2023
    Article
  17. Article
  18. Regulation of oocyte maturation: Role of conserved ERK signaling.Molecular reproduction and development · 2022
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Valentina BaenaDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Corie M OwenDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Tracy F UliaszDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Katie M LowtherDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Siu-Pok YeeDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Mark TerasakiDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Jeremy R EgbertDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Laurinda A JaffeDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
UConn Health · US

Funding

Signal Transduction at FertilizationR37HD014939 · NICHD · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI JAFFE, LAURINDA A. · 2014 to 2023
$4.8M
NICHD NIH HHS R37 HD014939
6 · The paper itself

Abstract

Meiotic arrest and resumption in mammalian oocytes are regulated by 2 opposing signaling proteins in the cells of the surrounding follicle: the guanylyl cyclase natriuretic peptide receptor 2 (NPR2), and the luteinizing hormone receptor (LHR). NPR2 maintains a meiosis-inhibitory level of cyclic guanosine 5'-monophosphate (cGMP) until LHR signaling causes dephosphorylation of NPR2, reducing NPR2 activity, lowering cGMP to a level that releases meiotic arrest. However, the signaling pathway between LHR activation and NPR2 dephosphorylation remains incompletely understood, due in part to imprecise information about the cellular localization of these 2 proteins. To investigate their localization, we generated mouse lines in which hemagglutinin epitope tags were added to the endogenous LHR and NPR2 proteins, and used immunofluorescence and immunogold microscopy to localize these proteins with high resolution. The results showed that the LHR protein is absent from the cumulus cells and inner mural granulosa cells, and is present in only 13% to 48% of the outer mural granulosa cells. In contrast, NPR2 is present throughout the follicle, and is more concentrated in the cumulus cells. Less than 20% of the NPR2 is in the same cells that express the LHR. These results suggest that to account for the LH-induced inactivation of NPR2, LHR-expressing cells send a signal that inactivates NPR2 in neighboring cells that do not express the LHR. An inhibitor of gap junction permeability attenuates the LH-induced cGMP decrease in the outer mural granulosa cells, consistent with this mechanism contributing to how NPR2 is inactivated in cells that do not express the LHR.

Indexed as

AnimalsAtrial Natriuretic Factor Receptor BCyclic GMPFemaleMiceMicroscopy, Electron, ScanningOvarian FollicleReceptors, Atrial Natriuretic FactorReceptors, LHAtrial Natriuretic Factor Receptor BCyclic GMPReceptors, Atrial Natriuretic FactorReceptors, LHcyclic GMPgap junctionsLH receptornatriuretic peptide receptor 2ovarian follicle

Identifiers

PMID32384146
PMCPMC7574965
OpenAlexW3020908852

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.