Evidence map›Paper›PMID 26803842›Full record

ArticleCellular and molecular life sciences : CMLS2016

Fast skeletal myofibers of mdx mouse, model of Duchenne muscular dystrophy, express connexin hemichannels that lead to apoptosis.

Luis A Cea, Carlos Puebla, Bruno A Cisterna, Rosalba Escamilla, Aníbal A Vargas, Marina Frank, Paloma Martínez-Montero, Carmen Prior, Jesús Molano, Isabel Esteban-Rodríguez and 7 more

Open access · bronzeAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2016. 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
3.3field-weighted citation impact, top 8% 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, 41 citations in OpenAlex.

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  16. GsMTx4-D provides protection to the D2.mdx mouse.Neuromuscular disorders : NMD · 2018
    Article
  17. Article
  18. Joint diseases: from connexins to gap junctions.Nature reviews. Rheumatology · 2017
    Review
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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

17 authors at 6 institutions in 3 countries.

Luis A CeaPresent: Program of Anatomy and Developmental Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile. luiscea@med.uchile.cl.
Carlos PueblaDepartamento de Fisiología, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile.
Bruno A CisternaDepartamento de Fisiología, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile.
Rosalba EscamillaDepartamento de Fisiología, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile.
Aníbal A VargasDepartamento de Fisiología, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile.
Marina FrankDivision of Molecular Genetics, Life and Medical Sciences Institute, University of Bonn, 53115, Bonn, Germany.
Paloma Martínez-MonteroUnidad de Genética Molecular-INGEMM, Hospital Universitario La Paz-IdIPAZ, Madrid, Spain.
Carmen PriorUnidad de Genética Molecular-INGEMM, Hospital Universitario La Paz-IdIPAZ, Madrid, Spain.
Jesús MolanoUnidad de Genética Molecular-INGEMM, Hospital Universitario La Paz-IdIPAZ, Madrid, Spain.
Isabel Esteban-RodríguezServicio de Anatomía Patológica, Hospital Universitario La Paz-IdIPAZ, Madrid, Spain.
Ignacio PascualServicio de Neuropediatría, Hospital Universitario La Paz-IdIPAZ, Madrid, Spain.
Pía GallanoServicio de Genética, Hospital Santa Creu i Sant Pablo-CIBERER, Barcelona, Spain.
Gustavo LorenzoServicio de Pediatria, "Ramón y Cajal" Hospital-IRYCIS, Madrid, Spain.
Héctor PianServicio de Anatomía Patológica, "Ramón y Cajal" Hospital-IRYCIS, Madrid, Spain.
Luis C BarrioUnidad de Neurología Experimental, "Ramón y Cajal" Hospital-IRYCIS, Madrid, Spain.
Klaus WilleckeDivision of Molecular Genetics, Life and Medical Sciences Institute, University of Bonn, 53115, Bonn, Germany.
Juan C SáezDepartamento de Fisiología, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile. jsaez@bio.puc.cl.
Hospital Universitario La Paz · ESPontificia Universidad Católica de Chile · CLInstituto Ramón y Cajal de Investigación Sanitaria · ESUniversity of Bonn · DECentre for Biomedical Network Research on Rare Diseases · ESInstituto Cajal · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Skeletal muscles of patients with Duchenne muscular dystrophy (DMD) show numerous alterations including inflammation, apoptosis, and necrosis of myofibers. However, the molecular mechanism that explains these changes remains largely unknown. Here, the involvement of hemichannels formed by connexins (Cx HCs) was evaluated in skeletal muscle of mdx mouse model of DMD. Fast myofibers of mdx mice were found to express three connexins (39, 43 and 45) and high sarcolemma permeability, which was absent in myofibers of mdx Cx43(fl/fl)Cx45(fl/fl):Myo-Cre mice (deficient in skeletal muscle Cx43/Cx45 expression). These myofibers did not show elevated basal intracellular free Ca(2+) levels, immunoreactivity to phosphorylated p65 (active NF-κB), eNOS and annexin V/active Caspase 3 (marker of apoptosis) but presented dystrophin immunoreactivity. Moreover, muscles of mdx Cx43(fl/fl)Cx45(fl/fl):Myo-Cre mice exhibited partial decrease of necrotic features (big cells and high creatine kinase levels). Accordingly, these muscles showed similar macrophage infiltration as control mdx muscles. Nonetheless, the hanging test performance of mdx Cx43(fl/fl)Cx45(fl/fl):Myo-Cre mice was significantly better than that of control mdx Cx43(fl/fl)Cx45(fl/fl) mice. All three Cxs found in skeletal muscles of mdx mice were also detected in fast myofibers of biopsy specimens from patients with muscular dystrophy. Thus, reduction of Cx expression and/or function of Cx HCs may be potential therapeutic approaches to abrogate myofiber apoptosis in DMD.

Indexed as

ApoptosisAnimalsCell DeathConnexinsDystrophinFemaleHumansMaleMice, Inbred mdxMuscle Fibers, SkeletalMuscle, SkeletalMuscular Dystrophy, DuchenneNF-kappa BReceptors, Purinergic P2X7ConnexinsDystrophinNF-kappa BReceptors, Purinergic P2X7Cell deathConnexonsEvans blue uptakeNF-κBP2X7 receptorsPannexin1

Identifiers

PMID26803842
PMCPMC11108387
OpenAlexW2297316842

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.