Evidence map›Paper›PMID 24990806›Full record

ArticleBiology of reproduction2014

Expression of progesterone receptor membrane component-2 within the immature rat ovary and its role in regulating mitosis and apoptosis of spontaneously immortalized granulosa cells.

Daniel Griffin, Xiufang Liu, Cindy Pru, James K Pru, John J Peluso

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 52 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Daniel GriffinDepartment of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, Connecticut.
Xiufang LiuDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut.
Cindy PruCenter for Reproductive Biology, Department of Animal Science, Washington State University, Pullman, Washington.
James K PruCenter for Reproductive Biology, Department of Animal Science, Washington State University, Pullman, Washington.
John J PelusoDepartment of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, Connecticut peluso@nso2.uchc.edu.
UConn Health · USWashington State University · US

Funding

PAIRBP & PGRMC1 act as a membrane receptor complex to mediate P4's ovarian actionR01HD052740 · NICHD · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI PELUSO, JOHN J · 2007 to 2011
$1.7M
PGRMC1 function in female reproductive physiologyR21RR030264 · NCRR · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI PELUSO, JOHN J · 2010 to 2011
$427k
Functional Analysis of Endometrial Stem/Progenitor CellsR21HD066297 · NICHD · WASHINGTON STATE UNIVERSITY · PI PRU, JAMES K · 2010 to 2011
$394k
NCRR NIH HHS R21 RR030264NICHD NIH HHS R01 HD052740NICHD NIH HHS R21 HD066297
6 · The paper itself

Abstract

Progesterone receptor membrane component 2 (Pgrmc2) mRNA was detected in the immature rat ovary. By 48 h after eCG, Pgrmc2 mRNA levels decreased by 40% and were maintained at 48 h post-hCG. Immunohistochemical studies detected PGRMC2 in oocytes and ovarian surface epithelial, interstitial, thecal, granulosa, and luteal cells. PGRMC2 was also present in spontaneously immortalized granulosa cells, localizing to the cytoplasm of interphase cells and apparently to the mitotic spindle of cells in metaphase. Interestingly, PGRMC2 levels appeared to decrease during the G1 stage of the cell cycle. Moreover, overexpression of PGRMC2 suppressed entry into the cell cycle, possibly by binding the p58 form of cyclin dependent kinase 11b. Conversely, Pgrmc2 small interfering RNA (siRNA) treatment increased the percentage of cells in G1 and M stage but did not increase the number of cells, which was likely due to an increase in apoptosis. Depleting PGRMC2 did not inhibit cellular (3)H-progesterone binding, but attenuated the ability of progesterone to suppress mitosis and apoptosis. Taken together these studies suggest that PGRMC2 affects granulosa cell mitosis by acting at two specific stages of the cell cycle. First, PGRMC2 regulates the progression from the G0 into the G1 stage of the cell cycle. Second, PGRMC2 appears to localize to the mitotic spindle, where it likely promotes the final stages of mitosis. Finally, siRNA knockdown studies indicate that PGRMC2 is required for progesterone to slow the rate of granulosa cell mitosis and apoptosis. These findings support a role for PGRMC2 in ovarian follicle development.

Indexed as

AnimalsApoptosisCells, CulturedFemaleGene Expression RegulationGranulosa CellsMembrane ProteinsMitosisRatsReceptors, ProgesteroneRNA, MessengerMembrane ProteinsPgrmc2 protein, ratReceptors, ProgesteroneRNA, Messengerapoptosisgranulosa cellsmitosisPGRMC1PGRMC2progesterone

Identifiers

PMID24990806
PMCPMC4435414
OpenAlexW2139846278

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.