Evidence map›Paper›PMID 33622325›Full record

ArticleRespiratory research2021

Olodaterol exerts anti-inflammatory effects on COPD airway epithelial cells.

Nan Yang, Gurpreet K Singhera, Yi Xuan Yan, Michael P Pieper, Janice M Leung, Don D Sin, Delbert R Dorscheid

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 43% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Review
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  3. Review
  4. 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

7 authors at 2 institutions in 2 countries.

Nan Yang *Center for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.ORCID http://orcid.org/0000-0002-6509-6328
Gurpreet K Singhera *Center for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Yi Xuan YanCenter for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Michael P PieperBoehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany.
Janice M LeungCenter for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Don D SinCenter for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Delbert R DorscheidCenter for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada. del.dorscheid@hli.ubc.ca.
University of British Columbia · CABoehringer Ingelheim (Germany) · DE

Funding

AllerGen NMJK 20R12545British Columbia Lung Association NRLQ 20R00475CIHR 20R25167Michael Smith Foundation for Health Research NJZY 20R7746
6 · The paper itself

Abstract

backgroundAirway inflammation is a key feature of chronic obstructive pulmonary disease (COPD) and inhaled corticosteroids (ICS) remain the main treatment for airway inflammation. Studies have noted the increased efficacy of ICS and long-acting beta 2 agonist (LABA) combination therapy in controlling exacerbations and improving airway inflammation than either monotherapy. Further studies have suggested that LABAs may have inherent anti-inflammatory potential, but this has not been well-studied.

objectiveWe hypothesize that the LABA olodaterol can inhibit airway inflammation resulting from exposure to respiratory syncytial virus (RSV) via its binding receptor, the β2-adrenergic receptor.

methodsHuman bronchial epithelial brushing from patients with and without COPD were cultured into air-liquid interface (ALI) cultures and treated with or without olodaterol and RSV infection to examine the effect on markers of inflammation including interleukin-8 (IL-8) and mucus secretion. The cell line NCI-H292 was utilized for gene silencing of the β2-adrenergic receptor via siRNA as well as receptor blocking via ICI 118,551 and butaxamine.

resultsAt baseline, COPD-ALIs produced greater amounts of IL-8 than control ALIs. Olodaterol reduced RSV-mediated IL-8 secretion in both COPD and control ALIs and also significantly reduced Muc5AC staining in COPD-ALIs infected with RSV. A non-significant reduction was seen in control ALIs. Gene silencing of the β2-adrenergic receptor in NCI-H292 negated the ability of olodaterol to inhibit IL-8 secretion from both RSV infection and lipopolysaccharide stimulus, as did blocking of the receptor with ICI 118,551 and butaxamine.

conclusionsOlodaterol exhibits inherent anti-inflammatory properties on the airway epithelium, in addition to its bronchodilation properties, that is mediated through the β2-adrenergic receptor and independent of ICS usage.

Indexed as

Administration, InhalationAgedBenzoxazinesBronchodilator AgentsCells, CulturedEpithelial CellsFemaleHumansInflammationMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRespiratory MucosaBenzoxazinesBronchodilator AgentsolodaterolAirway epitheliumAirway inflammationBeta 2-adrenergic receptorCOPDInterleukin-8Long-acting beta agonistOlodaterol

Identifiers

PMID33622325
PMCPMC7901009
OpenAlexW3130464510

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.