Evidence map›Paper›PMID 10381600›Full record

ArticleThe Journal of physiology1999

Tumour necrosis factor-alpha activates a calcium sensitization pathway in guinea-pig bronchial smooth muscle.

J R Parris, H J Cobban, A F Littlejohn, D J MacEwan, G F Nixon

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 74 citations in OpenAlex.

  1. Acepromazine Reduces Airway Contraction in a Murine Model of Asthma.Clinical and experimental pharmacology & physiology · 2026
    Article
  2. Article
  3. Review
  4. TNFα enhances force generation in airway smooth muscle.American journal of physiology. Lung cellular and molecular physiology · 2017
    Article
  5. Review
  6. Review
  7. Article
  8. Mfge8 suppresses airway hyperresponsiveness in asthma by regulating smooth muscle contraction.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Strain-dependent activation of NF-kappaB in the airway epithelium and its role in allergic airway inflammation.American journal of physiology. Lung cellular and molecular physiology · 2010
    Article
  14. Article
  15. Article
  16. TNF-alpha infusion impairs corpora cavernosa reactivity.The journal of sexual medicine · 2009
    Article
  17. Article
  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

5 authors at 1 institution in 1 country.

J R ParrisDepartment of Biomedical Sciences, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK.
H J Cobban
A F Littlejohn
D J MacEwan
G F Nixon
University of Aberdeen · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

1. The effects of tumour necrosis factor-alpha (TNF) on guinea-pig bronchial smooth muscle contractility were investigated. 2. The Ca2+-activated contractile response of permeabilized bronchial smooth muscle strips was significantly increased after incubation with 1 microgram ml-1 TNF for 45 min. This TNF-induced effect was not due to a further increase in intracellular Ca2+. 3. The TNF-induced Ca2+ sensitization was, at least partly, the result of an increase in myosin light chain20 phosphorylation. 4. The intracellular signalling pathway involved in this effect of TNF was further investigated. Sphingomyelinase, a potential mediator of TNF, had no effect on Ca2+ sensitivity of permeabilized bronchial smooth muscle. Also, p42/p44 mitogen-activated protein kinase (p42/p44mapk), activated by TNF in some cell types, did not show an increased activation in bronchial smooth muscle after TNF treatment. 5. In conclusion, TNF may activate a novel signalling pathway in guinea-pig bronchial smooth muscle leading to an increase in myosin light chain20 phosphorylation and a subsequent increase in Ca2+ sensitivity of the myofilaments. This pathway does not appear to involve sphingomyelinase-liberated ceramides or activation of p42/p44mapk. Given the importance of TNF in asthma, this TNF-induced Ca2+ sensitization of the myofilaments may represent a mechanism responsible for airway hyper-responsiveness.

Indexed as

AnimalsBronchiCalciumCalcium SignalingGuinea PigsIn Vitro TechniquesMaleMitogen-Activated Protein Kinase 1Muscle ContractionMuscle, SmoothMyosin Light ChainsRecombinant ProteinsSphingomyelin PhosphodiesteraseTumor Necrosis Factor-alphaCalciumMitogen-Activated Protein Kinase 1Myosin Light ChainsRecombinant ProteinsSphingomyelin PhosphodiesteraseTumor Necrosis Factor-alpha

Identifiers

PMID10381600
PMCPMC2269439
OpenAlexW2155662288

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.