Evidence map›Paper›PMID 22905185›Full record

ArticlePloS one2012

Cardiomyocyte-specific expression of lamin a improves cardiac function in Lmna-/- mice.

Richard L Frock, Steven C Chen, Dao-Fu Da, Ellie Frett, Carmen Lau, Christina Brown, Diana N Pak, Yuexia Wang, Antoine Muchir, Howard J Worman and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Hallmarks of cardiovascular ageing.Nature reviews. Cardiology · 2023
    Review
  5. Article
  6. Article
  7. Preclinical Advances of Therapies for Laminopathies.Journal of clinical medicine · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Lamin A/C Cardiomyopathies: Current Understanding and Novel Treatment Strategies.Current treatment options in cardiovascular medicine · 2017
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  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

14 authors at 4 institutions in 1 country.

Richard L FrockDepartment of Biochemistry, University of Washington, Seattle, Washington, United States of America.
Steven C Chen
Dao-Fu Da
Ellie Frett
Carmen Lau
Christina Brown
Diana N Pak
Yuexia Wang
Antoine Muchir
Howard J Worman
Luis F Santana
Warren C Ladiges
Peter S Rabinovitch
Brian K Kennedy
University of Washington · USColumbia University · USBuck Institute for Research on Aging · USUniversity of Rochester · US

Funding

EXPERIMENTAL PATHOLOGY OF CARDIOVASCULAR DISEASET32HL007312 · NHLBI · UNIVERSITY OF WASHINGTON · PI MAJESKY, MARK W., SCHWARTZ, STEPHEN MARK · 1985 to 2019
$11.8M
Pathogenesis of Emery-Dreifuss Muscular DystrophyR01AR048997 · NIAMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WORMAN, HOWARD J · 2003 to 2024
$7.1M
NFAT-induced Regional Variations in Kv4 Channel Expression in HeartR01HL085686 · NHLBI · UNIVERSITY OF WASHINGTON · PI SANTANA, LUIS F · 2007 to 2020
$5.7M
Nuclear Lamin Functions and Human DiseaseR01AG024287 · NIA · UNIVERSITY OF WASHINGTON · PI KENNEDY, BRIAN K · 2004 to 2013
$3.0M
NHLBI NIH HHS HL085686NHLBI NIH HHS R01 HL085686NHLBI NIH HHS T32 HL007312NIAMS NIH HHS R01 AR048997NIA NIH HHS R01 AG024287
6 · The paper itself

Abstract

Lmna(-/-) mice display multiple tissue defects and die by 6-8 weeks of age reportedly from dilated cardiomyopathy with associated conduction defects. We sought to determine whether restoration of lamin A in cardiomyocytes improves cardiac function and extends the survival of Lmna(-/-) mice. We observed increased total desmin protein levels and disorganization of the cytoplasmic desmin network in ~20% of Lmna(-/-) ventricular myocytes, rescued in a cell-autonomous manner in Lmna(-/-) mice expressing a cardiac-specific lamin A transgene (Lmna(-/-); Tg). Lmna(-/-); Tg mice displayed significantly increased contractility and preservation of myocardial performance compared to Lmna(-/-) mice. Lmna(-/-); Tg mice attenuated ERK1/2 phosphorylation relative to Lmna(-/-) mice, potentially underlying the improved localization of connexin43 to the intercalated disc. Electrocardiographic recordings from Lmna(-/-) mice revealed arrhythmic events and increased frequency of PR interval prolongation, which is partially rescued in Lmna(-/-); Tg mice. These findings support our observation that Lmna(-/-); Tg mice have a 12% median extension in lifespan compared to Lmna(-/-) mice. While significant, Lmna(-/-); Tg mice only have modest improvement in cardiac function and survival likely stemming from the observation that only 40% of Lmna(-/-); Tg cardiomyocytes have detectable lamin A expression. Cardiomyocyte-specific restoration of lamin A in Lmna(-/-) mice improves heart-specific pathology and extends lifespan, demonstrating that the cardiac pathology of Lmna(-/-) mice limits survival. The expression of lamin A is sufficient to rescue certain cellular defects associated with loss of A-type lamins in cardiomyocytes in a cell-autonomous fashion.

Indexed as

AnimalsCytoplasmDesminElectrocardiographyHeart VentriclesLamin Type AMiceMice, TransgenicMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Models, GeneticMuscle CellsMyocytes, CardiacPhenotypeTransgenesDesminLamin Type AMapk1 protein, mouseMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3

Identifiers

PMID22905185
PMCPMC3419749
OpenAlexW2070112328

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.