Evidence map›Paper›PMID 31346202›Full record

ArticleScientific reports2019

Cigarette smoke exposure redirects Staphylococcus aureus to a virulence profile associated with persistent infection.

Alicia Lacoma, Andrew M Edwards, Bernadette C Young, José Domínguez, Cristina Prat, Maisem Laabei

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Article
  7. Cigarette smoke modulates virulence-related properties and host immune responses inFrontiers in cellular and infection microbiology · 2026
    Article
  8. Article
  9. Article
  10. Characterisation of nasopharyngeal colonisation byBMJ open respiratory research · 2025
    Article
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  12. Review
  13. Article
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  15. Article
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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

6 authors at 3 institutions in 2 countries.

Alicia LacomaServei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain.
Andrew M EdwardsMRC Centre for Molecular Bacteriology and Infection, Imperial College London, London, United Kingdom.ORCID http://orcid.org/0000-0002-7173-7355
Bernadette C YoungNuffield Department of Medicine, Experimental Medicine Division, University of Oxford, Oxford, United Kingdom.ORCID http://orcid.org/0000-0001-6071-6770
José DomínguezServei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain.
Cristina PratServei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain.
Maisem LaabeiServei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain. ml418@bath.ac.uk.ORCID http://orcid.org/0000-0002-8425-3704
Universitat Autònoma de Barcelona · ESImperial College London · GBUniversity of Oxford · GB

Funding

Medical Research Council MR/P028225/1
6 · The paper itself

Abstract

Tobacco smoking represents the leading preventable cause of death worldwide. Smoking is a recognised risk factor for several pathologies and is detrimental to host immune surveillance and defence. However, the impact of smoking on microbial residents of the nasopharyngeal cavity, in contact with cigarette smoke (CS), is lacking. Staphylococcus aureus is a major human pathogen that colonises the human nasopharynx and causes a wide range of infections. We investigated the impact of CS on specific virulence phenotypes important in S aureus pathogenesis. We observed strain-dependent differences following exposure to CS, namely growth inhibition, augmented biofilm formation, increased invasion of, and persistence within, bronchial alveolar epithelial cells. Additionally, we confirm the critical role of a functional accessory gene regulator (Agr) system in mediating increased biofilm development and host cell invasion and persistence following CS exposure. Furthermore, CS exposure resulted in reduced toxin production. Importantly, exposure of S aureus to CS accelerated the frequency of mutations and resulted in a significant increase in gentamicin-resistant small colony variant (SCV) formation. Mutational analysis revealed that CS induced SCVs emerge via the SOS response DNA mutagenic repair system. Taken together, our results suggest that CS redirects certain S aureus strains to a virulence profile associated with persistence.

Indexed as

BiofilmsDrug Resistance, BacterialA549 CellsBacterial ToxinsDNA RepairHumansMutation RateStaphylococcus aureusTobacco Smoke PollutionVirulenceBacterial ToxinsTobacco Smoke Pollution

Identifiers

PMID31346202
PMCPMC6658544
OpenAlexW2964244843

What OpenQuestion 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 OpenQuestion graph.