Evidence map›Paper›PMID 21148105›Full record

ArticleBiology of reproduction2011

A novel role for progesterone and progesterone receptor membrane component 1 in regulating spindle microtubule stability during rat and human ovarian cell mitosis.

Valentina Lodde, John J Peluso

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2011. 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
1.7field-weighted citation impact, top 17% 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, 54 citations in OpenAlex.

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  7. PGRMC1-dependent lipophagy promotes ferroptosis in paclitaxel-tolerant persister cancer cells.Journal of experimental & clinical cancer research : CR · 2021
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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

2 authors at 2 institutions in 3 countries.

Valentina LoddeDepartment of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA.
John J Peluso
UConn Health · USUniversity of Milan · IT

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
NICHD NIH HHS 5R01HD052740NICHD NIH HHS R01 HD052740
6 · The paper itself

Abstract

The present studies were designed to assess the roles of progesterone (P4) and Progesterone Receptor Membrane Component 1 (PGRMC1) in regulating mitosis of spontaneously immortalized granulosa cells (SIGCs) and ovarian cancer cells, SKOV-3 cells. Because PGRMC1 has been detected among the proteins of the human mitotic spindle, we theorized that P4 and PGRMC1 could affect mitosis through a microtubule-dependent process. The present study confirms that SIGC growth is slowed by either P4 treatment or transfection of a PGRMC1 antibody. In both cases, slower cell proliferation was accompanied by an increased percentage of mitotic cells, which is consistent with a P4-induced prolongation of the M phase of the cell cycle. In addition, P4 increased the stability of the spindle microtubules, as assessed by the rate of beta-tubulin disassembly in response to cooling. Also, P4 increased spindle microtubule stability of SKOV-3 cells. This effect was mimicked by the depletion of PGRMC1 in these cells. Importantly, P4 did not increase the stability of the microtubules over that observed in PGRMC1-depleted SKOV-3 cells. Immunofluorescent analysis revealed that PGRMC1 is distributed to the spindle apparatus as well as to the centrosomes at metaphase. Further in situ proximity ligation assay revealed that PGRMC1 interacted with beta-tubulin. Taken together, these results suggest that P4 inhibits mitosis of ovarian cells by increasing the stability of the mitotic spindle. Moreover, P4's actions appear to be dependent on PGRMC1's function within the mitotic spindle.

Indexed as

AnimalsAntibodiesCell LineCell Line, TumorFemaleGranulosa CellsHumansMembrane ProteinsMicrotubulesMitosisProgesteroneRatsReceptors, ProgesteroneSpindle ApparatusTransfectionAntibodiesMembrane ProteinsPGRMC1 protein, humanPgrmc1 protein, ratProgesteroneReceptors, Progesterone

Identifiers

PMID21148105
PMCPMC3062038
OpenAlexW2166065432

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.