Evidence map›Paper›PMID 31207943›Full record

ArticleCells2019

The Peptide ERα17p Is a GPER Inverse Agonist that Exerts Antiproliferative Effects in Breast Cancer Cells.

Rosamaria Lappano, Christophe Mallet, Bruno Rizzuti, Fedora Grande, Giulia Raffaella Galli, Cillian Byrne, Isabelle Broutin, Ludivine Boudieu, Alain Eschalier, Yves Jacquot and 1 more

Open access · goldAbstract read
In one paragraph

Article in Cells, 2019. 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
2.1field-weighted citation impact, top 12% 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, 29 citations in OpenAlex.

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  15. GPER1 and microRNA: Two Players in Breast Cancer Progression.International journal of molecular sciences · 2020
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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

11 authors at 5 institutions in 2 countries.

Rosamaria LappanoDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy. rosamaria.lappano@unical.it.
Christophe MalletNEURO-DOL Basics & Clinical Pharmacology of Pain, INSERM, CHU, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France. christophe.mallet@uca.fr.ORCID 0000-0002-0873-6763
Bruno RizzutiCNR-NANOTEC, Licryl-UOS Cosenza and CEMIF.Cal, Department of Physics, University of Calabria, 87036 Rende, Italy. bruno.rizzuti@fis.unical.it.ORCID 0000-0003-1110-764X
Fedora GrandeDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy. fedora.grande@unical.it.ORCID 0000-0002-6154-4330
Giulia Raffaella GalliDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy. giulia.r.galli@gmail.com.
Cillian ByrneLaboratoire des Biomolécules (LBM), CNRS-UMR 7203, Sorbonne University, Ecole Normale Supérieure, 75252 Paris Cedex 05, France. cillian.byrne@upmc.fr.ORCID 0000-0002-5823-8842
Isabelle BroutinCibles Thérapeutiques et Conception de Médicaments (CiTCoM), CNRS-UMR 8038, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, 75270 Paris Cedex 06, France. isabelle.broutin@parisdescartes.fr.ORCID 0000-0001-9862-1232
Ludivine BoudieuNEURO-DOL Basics & Clinical Pharmacology of Pain, INSERM, CHU, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France. ludivine.boudieu@uca.fr.
Alain EschalierNEURO-DOL Basics & Clinical Pharmacology of Pain, INSERM, CHU, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France. alain.eschalier@uca.fr.
Yves JacquotLaboratoire des Biomolécules (LBM), CNRS-UMR 7203, Sorbonne University, Ecole Normale Supérieure, 75252 Paris Cedex 05, France. yves.jacquot@sorbonne-universite.fr.
Marcello MaggioliniDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy. marcellomaggiolini@yahoo.it.ORCID 0000-0002-7485-854X
University of Calabria · ITInserm · FRCentre National de la Recherche Scientifique · FRDélégation Paris 5 · FRIstituto di Nanotecnologia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The inhibition of the G protein-coupled estrogen receptor (GPER) offers promising perspectives for the treatment of breast tumors. A peptide corresponding to part of the hinge region/AF2 domain of the human estrogen receptor α (ERα17p, residues 295-311) exerts anti-proliferative effects in various breast cancer cells including those used as triple negative breast cancer (TNBC) models. As preliminary investigations have evoked a role for the GPER in the mechanism of action of this peptide, we focused our studies on this protein using SkBr3 breast cancer cells, which are ideal for GPER evaluation. ERα17p inhibits cell growth by targeting membrane signaling. Identified as a GPER inverse agonist, it co-localizes with GPER and induces the proteasome-dependent downregulation of GPER. It also decreases the level of pEGFR (phosphorylation of epidermal growth factor receptor), pERK1/2 (phosphorylation of extracellular signal-regulated kinase), and c-fos. ERα17p is rapidly distributed in mice after intra-peritoneal injection and is found primarily in the mammary glands. The N-terminal PLMI motif, which presents analogies with the GPER antagonist PBX1, reproduces the effect of the whole ERα17p. Thus, this motif seems to direct the action of the entire peptide, as highlighted by docking and molecular dynamics studies. Consequently, the tetrapeptide PLMI, which can be claimed as the first peptidic GPER disruptor, could open new avenues for specific GPER modulators.

Indexed as

AnimalsApoptosisCell Line, TumorCell MembraneCell ProliferationEnzyme ActivationErbB ReceptorsEstrogen Receptor alphaExtracellular Signal-Regulated MAP KinasesFemaleGRB2 Adaptor ProteinHumansMiceMolecular Docking SimulationMolecular Dynamics SimulationPeptide FragmentsErbB ReceptorsEstrogen Receptor alphaestrogen receptor alpha (295-311), humanExtracellular Signal-Regulated MAP KinasesGPER1 protein, humanGRB2 Adaptor ProteinGRB2 protein, humanPeptide FragmentsProteasome Endopeptidase ComplexProto-Oncogene Proteins c-fosReceptors, EstrogenReceptors, G-Protein-Coupledanti-proliferationbreast cancerdesensitizerGPERinverse agonistpeptideSkBr3

Identifiers

PMID31207943
PMCPMC6627388
OpenAlexW2950713816

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.