Evidence map›Paper›PMID 19011151›Full record

ArticleAmerican journal of respiratory and critical care medicine2009

Myosin, transgelin, and myosin light chain kinase: expression and function in asthma.

Renaud Léguillette, Michel Laviolette, Celine Bergeron, Nedjma Zitouni, Paul Kogut, Julian Solway, Linda Kachmar, Qutayba Hamid, Anne-Marie Lauzon

Open access · greenAbstract readComparative Study
In one paragraph

Article in American journal of respiratory and critical care medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 100 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Therapeutic ketosis decreases methacholine hyperresponsiveness in mouse models of inherent obese asthma.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
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  8. Airway smooth muscle function in asthma.Frontiers in physiology · 2022
    Review
  9. Glucocorticoid treatment in horses with asthma: A narrative review.Journal of veterinary internal medicine · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. Review
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  15. Review
  16. Regulation of IL-17A and implications for TGF-β1 comodulation of airway smooth muscle remodeling in severe asthma.American journal of physiology. Lung cellular and molecular physiology · 2019
    Article
  17. Article
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  20. Review
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

9 authors at 3 institutions in 2 countries.

Renaud LéguilletteMeakins-Christie Laboratories, McGill University, 3626 St-Urbain street, Montreal, PQ, H2X 2P2 Canada.
Michel Laviolette
Celine Bergeron
Nedjma Zitouni
Paul Kogut
Julian Solway
Linda Kachmar
Qutayba Hamid
Anne-Marie Lauzon
Christie (Canada) · CAUniversity of Chicago · USCentre hospitalier de l'Université Laval · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleAirway smooth muscle (SM) of patients with asthma exhibits a greater velocity of shortening (Vmax) than that of normal subjects, and this is thought to contribute to airway hyperresponsiveness. A greater Vmax can result from increased myosin activation. This has been reported in sensitized human airway SM and in models of asthma. A faster Vmax can also result from the expression of specific contractile proteins that promote faster cross-bridge cycling. This possibility has never been addressed in asthma.

objectivesWe tested the hypothesis that the expression of genes coding for SM contractile proteins is altered in asthmatic airways and contributes to their increased Vmax.

methodsWe quantified the expression of several genes that code for SM contractile proteins in mild allergic asthmatic and control human airway endobronchial biopsies. The function of these contractile proteins was tested using the in vitro motility assay. MEASUREMENTS AND MAIN

resultsWe observed an increased expression of the fast myosin heavy chain isoform, transgelin, and myosin light chain kinase in patients with asthma. Immunohistochemistry demonstrated the expression of these genes at the protein level. To address the functional significance of this overexpression, we purified tracheal myosin from the hyperresponsive Fisher rats, which also overexpress the fast myosin heavy chain isoform as compared with the normoresponsive Lewis rats, and found a faster rate of actin filament propulsion. Conversely, transgelin did not alter the rate of actin filament propulsion.

conclusionsSelective overexpression of airway smooth muscle genes in asthmatic airways leads to increased Vmax, thus contributing to the airway hyperresponsiveness observed in asthma.

Indexed as

Gene ExpressionAdolescentAnimalsAsthmaBiopsyBlotting, WesternBronchoscopyElectrophoresis, Polyacrylamide GelFemaleFollow-Up StudiesGenetic Predisposition to DiseaseHumansImmunohistochemistryMaleMicrofilament ProteinsMuscle ProteinsMicrofilament ProteinsMuscle ProteinsMyosin Heavy ChainsMyosin-Light-Chain KinaseRNA, MessengertransgelinXenopus Proteins

Identifiers

PMID19011151
PMCPMC2633053
OpenAlexW2002340060

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.