Evidence map›Paper›PMID 19246640›Full record

ArticleThe American journal of pathology2009

Large CTG repeats trigger p16-dependent premature senescence in myotonic dystrophy type 1 muscle precursor cells.

Anne Bigot, Arnaud F Klein, Erwan Gasnier, Virginie Jacquemin, Philippe Ravassard, Gillian Butler-Browne, Vincent Mouly, Denis Furling

Abstract read
In one paragraph

Article in The American journal of pathology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

60 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. New Horizons in Myotonic Dystrophy Type 1: Cellular Senescence as a Therapeutic Target.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  10. Article
  11. Article
  12. Studying the Effect of MBNL1 and MBNL2 Loss in Skeletal Muscle Regeneration.International journal of molecular sciences · 2024
    Article
  13. Article
  14. Article
  15. SpecificMolecular therapy. Nucleic acids · 2023
    Article
  16. Review
  17. Article
  18. Targeting Myotonic Dystrophy Type 1 with Metformin.International journal of molecular sciences · 2022
    Review
  19. Cellular Senescence and Aging in Myotonic Dystrophy.International journal of molecular sciences · 2022
    Review
  20. Article
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

8 authors.

Anne BigotUniversité Pierre et Marie Curie Paris 6, UMR 787, Paris, France.
Arnaud F Klein
Erwan Gasnier
Virginie Jacquemin
Philippe Ravassard
Gillian Butler-Browne
Vincent Mouly
Denis Furling

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A CTG repeat amplification is responsible for the dominantly inherited neuromuscular disorder, myotonic dystrophy type 1 (DM1), which is characterized by progressive muscle wasting and weakness. The expanded (CTG)n tract not only alters the myogenic differentiation of the DM1 muscle precursor cells but also reduces their proliferative capacity. In this report, we show that these muscle precursor cells containing large CTG expansion sequences have not exhausted their proliferative capacity, but have entered into premature senescence. We demonstrate that an abnormal accumulation of p16 is responsible for this defect because the abolition of p16 activity overcomes early growth arrest and restores an extended proliferative capacity. Our results suggest that the accelerated telomere shortening measured in DM1 cells does not contribute to the aberrant induction of p16. We propose that a cellular stress related to the amplified CTG repeat promotes premature senescence mediated by a p16-dependent pathway in DM1 muscle precursor cells. This mechanism is responsible for the reduced proliferative capacity of the DM1 muscle precursor cells and could participate in both the impaired regeneration and atrophy observed in the DM1 muscles containing large CTG expansions.

Indexed as

Cyclin-Dependent Kinase Inhibitor p16Blotting, WesternCell ProliferationCellular SenescenceFetusHumansImmunohistochemistryMyoblastsMyotonic DystrophyReverse Transcriptase Polymerase Chain ReactionSatellite Cells, Skeletal MuscleTelomereTrinucleotide RepeatsCyclin-Dependent Kinase Inhibitor p16

Identifiers

PMID19246640
PMCPMC2671374

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.