Evidence map›Paper›PMID 35321933›Full record

ReviewEuropean respiratory review : an official journal of the European Respiratory Society2022

Role of air pollutants in airway epithelial barrier dysfunction in asthma and COPD.

Mahyar Aghapour, Niki D Ubags, Dunja Bruder, Pieter S Hiemstra, Venkataramana Sidhaye, Fariba Rezaee, Irene H Heijink

Registry-linked trialOpen access · diamondAbstract readReview
In one paragraph

Review in European respiratory review : an official journal of the European Respiratory Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07417267 (Clean Air for Rare MUcociliary Clearance dIsorders), which is not on this map. Cited by 99 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed, 1 pooled it
17.3field-weighted citation impact, top 1% 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.

NCT07417267 naenrolling by invitationnot on this mapstarted 2025, after this paper: background citation

Clean Air for Rare MUcociliary Clearance dIsorders (CARMUCI)

TypeinterventionalSponsorUniversity of CyprusRan2025 to 2027Enrolled62ConditionsPrimary Ciliary Dyskinesia (PCD), Cystic Fibrosis (CF)ArmsIntervention configuration - air purifiers equipped with HEPA and three other filters for efficient particle filtration, Control configuration - air purifier configured to provide sham particle filtration
3 · Its place in the literature

Who cites it

99 citing papers in PubMed, 1 synthesis or guideline pooled it, 176 citations in OpenAlex.

  1. Pooled it
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  9. Air pollution-induced airway epithelial barrier dysfunction in COPD: a narrative review of mechanisms and therapeutic implications.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
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39 more citing papers are in PubMed but not listed here.

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 6 institutions in 4 countries.

Mahyar AghapourInfection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.
Niki D UbagsFaculty of Biology and Medicine, University of Lausanne, Service de Pneumologie, CHUV, Epalinges, Switzerland.ORCID https://orcid.org/0000-0002-0177-4134
Dunja BruderInfection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.
Pieter S HiemstraDept of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands.ORCID https://orcid.org/0000-0002-0238-5982
Venkataramana SidhayePulmonary and Critical Care Medicine, Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA.
Fariba RezaeeCenter for Pediatric Pulmonary Medicine, Cleveland Clinic Children's, Cleveland, OH, USA.ORCID https://orcid.org/0000-0002-7625-3341
Irene H HeijinkUniversity of Groningen, University Medical Center Groningen, Depts of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands h.i.heijink@umcg.nl.
Helmholtz Centre for Infection Research · DECleveland Clinic · USJohns Hopkins University · USLeiden University Medical Center · NLUniversity Medical Center Groningen · NLUniversity of Lausanne · CH

Funding

Mechanisms of Airway Epithelial Barrier Dysfunction by Respiratory Syncytial Virus and Environmental StimuliR01HL148057 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI REZAEE, FARIBA · 2019 to 2023
$2.2M
NHLBI NIH HHS R01 HL148057
6 · The paper itself

Abstract

Chronic exposure to environmental pollutants is a major contributor to the development and progression of obstructive airway diseases, including asthma and COPD. Understanding the mechanisms underlying the development of obstructive lung diseases upon exposure to inhaled pollutants will lead to novel insights into the pathogenesis, prevention and treatment of these diseases. The respiratory epithelial lining forms a robust physicochemical barrier protecting the body from inhaled toxic particles and pathogens. Inhalation of airborne particles and gases may impair airway epithelial barrier function and subsequently lead to exaggerated inflammatory responses and airway remodelling, which are key features of asthma and COPD. In addition, air pollutant-induced airway epithelial barrier dysfunction may increase susceptibility to respiratory infections, thereby increasing the risk of exacerbations and thus triggering further inflammation. In this review, we discuss the molecular and immunological mechanisms involved in physical barrier disruption induced by major airborne pollutants and outline their implications in the pathogenesis of asthma and COPD. We further discuss the link between these pollutants and changes in the lung microbiome as a potential factor for aggravating airway diseases. Understanding these mechanisms may lead to identification of novel targets for therapeutic intervention to restore airway epithelial integrity in asthma and COPD.

Indexed as

Air PollutantsAsthmaPulmonary Disease, Chronic ObstructiveAdministration, InhalationHumansLungAir Pollutants

Identifiers

PMID35321933
PMCPMC9128841
OpenAlexW4221116935

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.