Evidence map›Paper›PMID 24967968›Full record

ArticleCell death & disease2014

Dysferlin regulates cell membrane repair by facilitating injury-triggered acid sphingomyelinase secretion.

A Defour, J H Van der Meulen, R Bhat, A Bigot, R Bashir, K Nagaraju, J K Jaiswal

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

65 citing papers in PubMed, 104 citations in OpenAlex.

  1. Article
  2. Review
  3. A Network-Driven Framework for Drug Response Precision Prediction of Acute Myeloid Leukemia.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Plasma membrane repair defect in Alzheimer's disease neurons is driven by the reduced dysferlin expression.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
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5 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 3 countries.

A DefourCenter for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA.
J H Van der MeulenCenter for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA.
R BhatCenter for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA.
A BigotInstitut de Myologie, UM76 Université Pierre et Marie Curie, U974 INSERM, UMR7215 CNRS, GH Pitié-Salpétrière, 47 bd de l'Hôpital, Paris, France.
R BashirSchool of Biological and Biochemical Sciences, University of Durham, Durham, UK.
K Nagaraju1] Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA [2] Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
J K Jaiswal1] Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA [2] Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
Children's National · USCentre de Recherche en MyologieDurham University · GBGeorge Washington University · US

Funding

NEUROIMAGING COREP30HD040677 · NICHD · CHILDREN'S RESEARCH INSTITUTE · PI VITTORIO GALLO, VITTORIO GALLO VITTORIO GALLO · 2001 to 2015
$15.9M
NCMRR-DC Core Molecular & Functional Outcome Measures in Rehabilitation MedicineR24HD050846 · NICHD · CHILDREN'S RESEARCH INSTITUTE · PI KNOBLACH, SUSAN M · 2005 to 2014
$8.6M
RNA fidelity and protein function of Becker-like in-frame deletionsP50AR060836 · NIAMS · CHILDREN'S RESEARCH INSTITUTE · PI PARTRIDGE, TERENCE A · 2011 to 2015
$7.8M
Understanding the mechanism and role of cell membrane repair in Miyoshi MyopathyR01AR055686 · NIAMS · ROCKEFELLER UNIVERSITY · PI JAISWAL, JYOTI K · 2008 to 2021
$3.6M
Preclinical drug trial in mouse models of inflammationK26OD011171 · OD · STATE UNIVERSITY OF NY,BINGHAMTON · PI NAGARAJU, KANNEBOYINA · 2012 to 2015
$420k
NIAMS NIH HHS AR055686NIAMS NIH HHS AR060836NIAMS NIH HHS P50 AR060836NIAMS NIH HHS R01 AR055686NICHD NIH HHS HD040677NICHD NIH HHS P30 HD040677NICHD NIH HHS R24 HD050846NICHD NIH HHS R24HD050846NIH HHS K26 OD011171NIH HHS K26OD011171
6 · The paper itself

Abstract

Dysferlin deficiency compromises the repair of injured muscle, but the underlying cellular mechanism remains elusive. To study this phenomenon, we have developed mouse and human myoblast models for dysferlinopathy. These dysferlinopathic myoblasts undergo normal differentiation but have a deficit in their ability to repair focal injury to their cell membrane. Imaging cells undergoing repair showed that dysferlin-deficit decreased the number of lysosomes present at the cell membrane, resulting in a delay and reduction in injury-triggered lysosomal exocytosis. We find repair of injured cells does not involve formation of intracellular membrane patch through lysosome-lysosome fusion; instead, individual lysosomes fuse with the injured cell membrane, releasing acid sphingomyelinase (ASM). ASM secretion was reduced in injured dysferlinopathic cells, and acute treatment with sphingomyelinase restored the repair ability of dysferlinopathic myoblasts and myofibers. Our results provide the mechanism for dysferlin-mediated repair of skeletal muscle sarcolemma and identify ASM as a potential therapy for dysferlinopathy.

Indexed as

AnimalsCell LineDistal MyopathiesDysferlinExocytosisHumansMembrane ProteinsMiceMuscle ProteinsMuscular AtrophyMyoblasts, SkeletalSarcolemmaSphingomyelin PhosphodiesteraseDysferlinDYSF protein, humanDysf protein, mouseMembrane ProteinsMuscle ProteinsSphingomyelin Phosphodiesterase

Identifiers

PMID24967968
PMCPMC4079937
OpenAlexW2009609120

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.