Evidence map›Paper›PMID 28931063›Full record

ArticlePloS one2017

Plant flavones enhance antimicrobial activity of respiratory epithelial cell secretions against Pseudomonas aeruginosa.

Benjamin M Hariri, Derek B McMahon, Bei Chen, Nithin D Adappa, James N Palmer, David W Kennedy, Robert J Lee

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.4field-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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Disruption of quorum sensing and biofilm formation in Pseudomonas aeruginosa by plant-based O-methylated flavonoids.International microbiology : the official journal of the Spanish Society for Microbiology · 2025
    Article
  3. Review
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  11. PAR-2-activated secretion by airway gland serous cells: role for CFTR and inhibition byAmerican journal of physiology. Lung cellular and molecular physiology · 2021
    Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Taste receptors in the upper airway.World journal of otorhinolaryngology - head and neck surgery · 2018
    Review
  20. Review
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 1 institution in 1 country.

Benjamin M HaririDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
Derek B McMahonDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
Bei ChenDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
Nithin D AdappaDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
James N PalmerDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
David W KennedyDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.
Robert J LeeDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America.ORCID http://orcid.org/0000-0001-5826-6686
University of Pennsylvania · US

Funding

Sweet receptor (T1R2/3) signaling in the upper airway and regulation of immunityR03DC013862 · NIDCD · UNIVERSITY OF PENNSYLVANIA · PI LEE, ROBERT J. · 2015 to 2017
$480k
NIDCD NIH HHS R03 DC013862
6 · The paper itself

Abstract

Flavones are a class of natural plant secondary metabolites that have anti-inflammatory and anti-bacterial effects. Some flavones also activate the T2R14 bitter taste receptor, which is expressed in motile cilia of the sinonasal epithelium and activates innate immune nitric oxide (NO) production. Flavones may thus be potential therapeutics for respiratory infections. Our objective was to examine the anti-microbial effects of flavones on the common sinonasal pathogens Candida albicans, Staphylococcus aureus, and Pseudomonas aeruginosa, evaluating both planktonic and biofilm growth. Flavones had only very low-level antibacterial activity alone. They did not reduce biofilm formation, but did reduce production of the important P. aeruginosa inflammatory mediator and ciliotoxin pyocyanin. However, flavones exhibited synergy against P. aeruginosa in the presence of antibiotics or recombinant human lysozyme. They also enhanced the efficacy of antimicrobials secreted by cultured and primary human airway cells grown at air-liquid interface. This suggests that flavones may have anti-gram-negative potential as topical therapeutics when combined with antibiotics or in the context of innate antimicrobials secreted by the respiratory or other epithelia. This may have an additive effect when combined with T2R14-activated NO production. Additional studies are necessary to understand which flavone compounds or mixtures are the most efficacious.

Indexed as

Anti-Bacterial AgentsBronchiCandida albicansCell LineDrug SynergismEpithelial CellsFlavonesHumansMicrobial Sensitivity TestsMuramidaseParanasal SinusesPlantsPseudomonas aeruginosaStaphylococcus aureusAnti-Bacterial AgentsFlavonesMuramidase

Identifiers

PMID28931063
PMCPMC5607194
OpenAlexW2754719305

What OpenQuestion holds

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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.