Evidence map›Paper›PMID 34702270›Full record

ArticleRespiratory research2021

Association between particulate matter containing EPFRs and neutrophilic asthma through AhR and Th17.

Jeffrey N Harding, Maureen Gross, Vivek Patel, Steven Potter, Stephania A Cormier

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 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Frontiers in medicine · 2026
    Article
  3. Article
  4. Article
  5. Non-T2 asthma.Current opinion in pulmonary medicine · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Single-cell RNA-sequencing in asthma research.Frontiers in immunology · 2022
    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

5 authors at 2 institutions in 1 country.

Jeffrey N HardingDepartment of Biological Sciences, Louisiana State University and Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA, 70808, USA.
Maureen GrossDepartment of Biological Sciences, Louisiana State University and Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA, 70808, USA.
Vivek PatelDepartment of Biological Sciences, Louisiana State University and Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA, 70808, USA.
Steven PotterDivision of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH, 45229, USA.
Stephania A CormierDepartment of Biological Sciences, Louisiana State University and Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA, 70808, USA. stephaniacormier@lsu.edu.ORCID http://orcid.org/0000-0002-6050-6172
Pennington Biomedical Research Center · USCincinnati Children's Hospital Medical Center · US

Funding

Role of microbiota in increased influenza severity due to particulate matter exposureP42ES013648 · NIEHS · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI LOMNICKI, SLAWO M · 2009 to 2024
$27.6M
The Role of IL4R Alpha in Neonatal RSV ImmunopathologyR01AI090059 · NIAID · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI CORMIER, STEPHANIA A · 2011 to 2025
$6.7M
Combustion Generated PM0.1 and Predisposition to AsthmaR01ES015050 · NIEHS · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI CORMIER, STEPHANIA A · 2006 to 2022
$4.6M
NIAID NIH HHS R01 AI090059NIEHS NIH HHS P42 ES013648NIEHS NIH HHS R01 ES015050NIH HHS P42ES013648NIH HHS R01AI090059NIH HHS R01ES015050
6 · The paper itself

Abstract

backgroundEpidemiological data associate high levels of combustion-derived particulate matter (PM) with deleterious respiratory outcomes, but the mechanism underlying those outcomes remains elusive. It has been acknowledged by the World Health Organization that PM exposure contributes to more than 4.2 million all-cause mortalities worldwide each year. Current literature demonstrates that PM exacerbates respiratory diseases, impairs lung function, results in chronic respiratory illnesses, and is associated with increased mortality. The proposed mechanisms revolve around oxidative stress and inflammation promoting pulmonary physiological remodeling. However, our previous data found that PM is capable of inducing T helper cell 17 (Th17) immune responses via aryl hydrocarbon receptor (Ahr) activation, which was associated with neutrophilic invasion characteristic of steroid insensitive asthma.

methodsIn the present study, we utilized a combination of microarray and single cell RNA sequencing data to analyze the immunological landscape in mouse lungs following acute exposure to combustion derived particulate matter.

resultsWe present data that suggest epithelial cells produce specific cytokines in the aryl hydrocarbon receptor (Ahr) pathway that inform dendritic cells to initiate the production of pathogenic T helper (eTh17) cells. Using single-cell RNA sequencing analysis, we observed that upon exposure epithelial cells acquire a transcriptomic profile indicative of increased Il-17 signaling, Ahr activation, Egfr signaling, and T cell receptor and co-stimulatory signaling pathways. Epithelial cells further showed, Ahr activation is brought on by Ahr/ARNT nuclear translocation and activation of tyrosine kinase c-src, Egfr, and subsequently Erk1/2 pathways.

conclusionsCollectively, our data corroborates that PM initiates an eTh17 specific inflammatory response causing neutrophilic asthma through pathways in epithelial, dendritic, and T cells that promote eTh17 differentiation during initial PM exposure.

Indexed as

AnimalsAsthmaBasic Helix-Loop-Helix ProteinsCytokinesDendritic CellsEpithelial CellsFemaleGene Expression ProfilingLungMaleMiceMice, Inbred C57BLNeutrophil InfiltrationNeutrophilsParticulate MatterReceptors, Aryl HydrocarbonAhr protein, mouseBasic Helix-Loop-Helix ProteinsCytokinesParticulate MatterReceptors, Aryl HydrocarbonAryl hydrocarbon receptorCombustion derived particulate matterEPFRsScRNA sequencingTh17

Identifiers

PMID34702270
PMCPMC8549224
OpenAlexW3209498201

What OpenQuestion holds

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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.