Evidence map›Paper›PMID 33731130›Full record

ArticleRespiratory research2021

Enhanced lung inflammatory response in whole-body compared to nose-only cigarette smoke-exposed mice.

Jef Serré, Ajime Tom Tanjeko, Carolien Mathyssen, An-Sofie Vanherwegen, Tobias Heigl, Rob Janssen, Eric Verbeken, Karen Maes, Bart Vanaudenaerde, Wim Janssens and 1 more

Open access · goldAbstract readComparative Study
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 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Modeling the Exposome in Murine Cardiovascular Disease.JACC. Basic to translational science · 2026
    Review
  3. Article
  4. Article
  5. Rodent Models of Lung Disease: A Road Map for Translational Research.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Role and mechanisms of autophagy in lung metabolism and repair.Cellular and molecular life sciences : CMLS · 2021
    Review
  16. Article
  17. 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

11 authors at 2 institutions in 2 countries.

Jef SerréLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Ajime Tom TanjekoLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Carolien MathyssenLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
An-Sofie VanherwegenLaboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium.
Tobias HeiglLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Rob JanssenDepartment of Pulmonary Medicine, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands.
Eric VerbekenTranslational Cell & Tissue Research, Department of Imaging & Pathology, KU Leuven, Leuven, Belgium.
Karen MaesLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Bart VanaudenaerdeLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Wim JanssensLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium.
Ghislaine Gayan-RamirezLaboratory of Respiratory Diseases and Thoracic Surgery, Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Herestraat 49, O&NI bis, box 706, 3000, Leuven, Belgium. ghislaine.gayan-ramirez@kuleuven.be.ORCID http://orcid.org/0000-0001-9652-7437
KU Leuven · BECanisius-Wilhelmina Ziekenhuis · NL

Funding

Onderzoeksraad, KU Leuven C24/15/30
6 · The paper itself

Abstract

backgroundChronic obstructive pulmonary disease (COPD) is characterized by a progressive and abnormal inflammatory response in the lungs, mainly caused by cigarette smoking. Animal models exposed to cigarette smoke (CS) are used to mimic human COPD but the use of different CS protocols makes it difficult to compare the immunological and structural consequences of using a nose-only or whole-body CS exposure system. We hypothesized that when using a standardized CS exposure protocol based on particle density and CO (carbon monoxide) levels, the whole-body CS exposure system would generate a more severe inflammatory response than the nose-only system, due to possible sensitization by uptake of CS-components through the skin or via grooming.

methodsIn this study focusing on early COPD, mice were exposed twice daily 5 days a week to CS either with a nose-only or whole-body exposure system for 14 weeks to assess lung function, remodeling and inflammation.

resultsAt sacrifice, serum cotinine levels were significantly higher in the whole-body (5.3 (2.3-6.9) ng/ml) compared to the nose-only ((2.0 (1.8-2.5) ng/ml) exposure system and controls (1.0 (0.9-1.0) ng/ml). Both CS exposure systems induced a similar degree of lung function impairment, while inflammation was more severe in whole body exposure system. Slightly more bronchial epithelial damage, mucus and airspace enlargement were observed with the nose-only exposure system. More lymphocytes were present in the bronchoalveolar lavage (BAL) and lymph nodes of the whole-body exposure system while enhanced IgA and IgG production was found in BAL and to a lesser extent in serum with the nose-only exposure system.

conclusionThe current standardized CS-exposure protocol resulted in a higher internal load of serum cotinine in the whole-body exposure system, which was associated with more inflammation. However, both exposure systems resulted in a similar lung function impairment. Data also highlighted differences between the two models in terms of lung inflammation and remodelling, and potential sensitization to CS. Researchers should be aware of these differences when designing their future studies for an early intervention in COPD.

Indexed as

SmokeTobacco ProductsAnimalsBiomarkersBronchoalveolar Lavage FluidCotinineCytokinesDisease Models, AnimalImmunity, HumoralImmunoglobulin AImmunoglobulin GInflammation MediatorsInhalation ExposureLungLymphoid TissueMaleBiomarkersCotinineCytokinesImmunoglobulin AImmunoglobulin GInflammation MediatorsSmokeCigarette smokeCOPDInflammationNose-onlyWhole-body

Identifiers

PMID33731130
PMCPMC7968299
OpenAlexW3113100187

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.