Evidence map›Paper›PMID 10366602›Full record

ArticleThe Journal of cell biology1999

alpha-Dystroglycan is a laminin receptor involved in extracellular matrix assembly on myotubes and muscle cell viability.

F Montanaro, M Lindenbaum, S Carbonetto

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
5.2field-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

41 citing papers in PubMed, 123 citations in OpenAlex.

  1. Article
  2. The road toward AAV-mediated gene therapy of Duchenne muscular dystrophy.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  3. Article
  4. Review
  5. Developmental and mechanical roles of Reichert's membrane in mouse embryos.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. The role of laminins in the organization and function of neuromuscular junctions.Matrix biology : journal of the International Society for Matrix Biology · 2017
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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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

3 authors at 2 institutions in 1 country.

F MontanaroCenter for Research in Neuroscience, McGill University, Montreal General Hospital Research Institute, Montreal, Quebec H3G 1A4, Canada.
M Lindenbaum
S Carbonetto
STMicroelectronics (Canada) · CAMcGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

alpha-Dystroglycan (alpha-DG) is a laminin-binding protein and member of a glycoprotein complex associated with dystrophin that has been implicated in the etiology of several muscular dystrophies. To study the function of DG, C2 myoblasts were transfected stably with an antisense DG expression construct. Myotubes from two resulting clones (11F and 11E) had at least a 40-50% and 80-90% reduction, respectively, in alpha-DG but normal or near normal levels of alpha-sarcoglycan, integrin beta1 subunit, acetylcholine receptors (AChRs), and muscle-specific kinase (MuSK) when compared with parental C2 cells or three clones (11A, 9B, and 10C) which went through the same transfection and selection procedures but expressed normal levels of alpha-DG. Antisense DG-expressing myoblasts proliferate at the same rate as parental C2 cells and differentiate into myotubes, however, a gradual loss of cells was observed in these cultures. This loss correlates with increased apoptosis as indicated by greater numbers of nuclei with condensed chromatin and more nuclei labeled by the TUNEL method. Moreover, there was no sign of increased membrane permeability to Trypan blue as would be expected with necrosis. Unlike parental C2 myotubes, 11F and 11E myotubes had very little laminin (LN) on their surfaces; LN instead tended to accumulate on the substratum between myotubes. Exogenous LN bound to C2 myotubes and was redistributed into plaques along with alpha-DG on their surfaces but far fewer LN/alpha-DG plaques were seen after LN addition to 11F or 11E myotubes. These results suggest that alpha-DG is a functional LN receptor in situ which is required for deposition of LN on the cell and, further, implicate alpha-DG in the maintenance of myotube viability.

Indexed as

AnimalsApoptosisCell DifferentiationCell DivisionCell FusionCell MembraneCells, CulturedCell SizeCell SurvivalCytoskeletal ProteinsDystroglycansExtracellular MatrixIntegrinsLamininMembrane GlycoproteinsMiceCytoskeletal ProteinsDAG1 protein, humanDystroglycansIntegrinsLamininMembrane GlycoproteinsMUSK protein, humanReceptor Protein-Tyrosine KinasesReceptors, CholinergicReceptors, LamininRNA, AntisenseSarcoglycans

Identifiers

PMID10366602
PMCPMC2133146
OpenAlexW2072491010

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.