Evidence map›Paper›PMID 11790825›Full record

ArticleThe Journal of physiology2002

Prolonged increase in ciliary beat frequency after short-term purinergic stimulation in human airway epithelial cells.

Thomas Lieb, Corinne Wijkstrom Frei, Jeffrey I Frohock, Richard J Bookman, Matthias Salathe

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.2field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 83 citations in OpenAlex.

  1. Review
  2. Article
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  13. How does rhinovirus cause the common cold cough?BMJ open respiratory research · 2016
    Article
  14. Article
  15. Airway hydration and COPD.Cellular and molecular life sciences : CMLS · 2015
    Review
  16. Article
  17. Soluble adenylyl cyclase in health and disease.Biochimica et biophysica acta · 2014
    Review
  18. Article
  19. Article
  20. Identification of pannexins in rat nasal mucosa.Allergy & rhinology (Providence, R.I.) · 2013
    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.

Thomas LiebDivision of Pulmonary and Critical Care Medicine, University of Miami School of Medicine, Miami, FL 33136, USA.
Corinne Wijkstrom Frei
Jeffrey I Frohock
Richard J Bookman
Matthias Salathe
University of Miami · US

Funding

PHOSPHORYLATION OF CILIARY TARGET PROTEINSR01HL060644 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SALATHE, MATTHIAS A · 1999 to 2011
$3.4M
CELLULAR BASIS OF AIRWAY SECRETION CLEARANCE COUPLINGR01HL055341 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI BOOKMAN, RICHARD JOHN · 1997 to 2004
$1.1M
CILIARY FUNCTION AND DIFFERENTIATION OF AIRWAY EPITHELIAK02HL067206 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SALATHE, MATTHIAS A · 2001 to 2005
$491k
NHLBI NIH HHS HL-55341NHLBI NIH HHS HL60644NHLBI NIH HHS HL67206NHLBI NIH HHS K02 HL067206NHLBI NIH HHS R01 HL055341NHLBI NIH HHS R01 HL060644
6 · The paper itself

Abstract

Stimulation of ovine airway epithelial cells with 10 microM ATP for 1 min at 25 degrees C transiently increased both cytoplasmic calcium (fura-2 epifluorescence microscopy) and ciliary beat frequency (CBF; differential interference contrast microscopy) with a similar time course. Identical purinergic stimulation of human airway epithelial cells at 25 or 35 degrees C, however, lead to an increase in CBF that outlasted the calcium transient at least 20 min. While a nitric oxide synthase inhibitor had no effect, pre-treatment of human cells with inhibitors of cAMP-dependent kinase (PKA), 10 microM myristoylated PKA-inhibitory peptide and 1 microM KT-5720, as well as an inhibitor of adenylyl cyclase, 1 mM SQ22536, blocked the prolonged, but not calcium-coupled CBF increase. Addition of PKA inhibitors after purinergic stimulation only partially reduced CBF from its elevated plateau. Prolonged CBF increases did not depend on adenosine production as 10 microM UTP had an effect similar to ATP and 8-sulphophenyl-theophylline did not block them. After increasing human CBF in a PKA-dependent manner to a stable plateau with forskolin (10 microM), ATP caused only a transient, calcium-coupled CBF increase. Calcium transients were necessary for both short-term and prolonged CBF changes as ATP failed to produce CBF increases after emptying calcium stores with 1 microM thapsigargin. These data suggest that in human, but not ovine airway epithelial cells, ATP-induced calcium transients activate a signalling cascade including adenylyl cyclase and PKA. The resulting prolonged CBF stimulation does not rely only on PKA activity, suggesting that the decay of CBF is influenced by ciliary phosphatase activity.

Indexed as

AdenineAdenosine TriphosphateAdenylyl Cyclase InhibitorsAnimalsCalciumCells, CulturedCiliaColforsinCyclic AMP-Dependent Protein KinasesCyclic GMP-Dependent Protein KinasesEnzyme InhibitorsEpithelial CellsExtracellular SpaceHumansIndazolesIntracellular Membranes3-bromo-7-nitroindazole9-(tetrahydro-2-furyl)-adenineAdenineAdenosine TriphosphateAdenylyl Cyclase InhibitorsCalciumColforsinCyclic AMP-Dependent Protein KinasesCyclic GMP-Dependent Protein KinasesEnzyme InhibitorsIndazolesNitric Oxide SynthasePurines

Identifiers

PMID11790825
PMCPMC2290065
OpenAlexW1983971263

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.