ArticlePloS one2018
Polycyclic aromatic hydrocarbons (PAHs) present in ambient urban dust drive proinflammatory T cell and dendritic cell responses via the aryl hydrocarbon receptor (AHR) in vitro.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
34 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.
- Outdoor air pollutants and asthma risk in adolescents: evidence from a systematic review and meta-analysis.Frontiers in public health · 2025Pooled it
- Polycyclic Aromatic Hydrocarbons Affect Rheumatoid Arthritis PathogenesisFrontiers in immunology · 2022Pooled it
- The advent of molecular nanocarbon biology.Chemical science · 2026Review
- Particulate Matter-Induced Skin Injury: A Dual-Pathway AhR-Nrf2 Framework for Epidermal Homeostasis and Therapeutic Targeting.International journal of molecular sciences · 2026Review
- Comparative 28-day mouse study of topically applied aryl hydrocarbon receptor ligands: microbiota-derived indoles, therapeutic tapinarof, pollutants 2,3,7,8-tetrachlorodibenzo-p-dioxin and diesel exhaust particles.Chemico-biological interactions · 2026Article
- RNAseq analysis demonstrates polarization state-dependent responses to ambient particulate matter in a particle composition-specific manner.Toxicological sciences : an official journal of the Society of Toxicology · 2026Article
- Review
- Seasonal PMParticle and fibre toxicology · 2025Article
- Review
- The aryl hydrocarbon receptor: a new frontier in male reproductive system.Reproductive biology and endocrinology : RB&E · 2025Review
- Air Pollution and Skin Diseases.Annals of dermatology · 2025Review
- Article
- Chitosan Nanoparticle-EncapsulatedInternational journal of molecular sciences · 2025Article
- Aryl hydrocarbon receptor facilitates HSV-1 lytic infection by enhancing viral gene transcription and receptor expression.Frontiers in cellular and infection microbiology · 2025Article
- Anti-Neuroinflammatory Potential of Areca Nut Extract and Its Bioactive Compounds in Anthracene-Induced BV-2 Microglial Cell Activation.Nutrients · 2024Article
- Associations of urinary polycyclic aromatic hydrocarbon (PAH) metabolites and their mixture with thyroid hormone concentration during pregnancy in the LIFECODES cohort: A repeated measures study.Environmental research · 2024Article
- Emissions from plastic incineration induce inflammation, oxidative stress, and impaired bioenergetics in primary human respiratory epithelial cells.Toxicological sciences : an official journal of the Society of Toxicology · 2024Article
- Article
- Chemical mixture that targets the epidermal growth factor pathway impairs human trophoblast cell functions.Toxicology and applied pharmacology · 2024Article
- Aryl hydrocarbon receptor-kynurenine axis promotes oncogenic activity in BCP-ALL.Cell biology and toxicology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Atmospheric particulate matter (PM) is a complex component of air pollution that is a composed of inorganic and organic constituents. The chemically-extracted organic fraction (OF) of PM excludes inorganics but retains most organic constituents like polycyclic aromatic hydrocarbons (PAHs). PAHs are ubiquitous environmental toxicants and known aryl hydrocarbon receptor (AHR) ligands. The AHR is a ligand activated transcription factor that responds to endogenous ligands and exogenous ligands including PAHs. Activation of the AHR leads to upregulation of cytochrome P450 (CYP) metabolizing enzymes which are important for the biotransformation of toxicants to less toxic, or in the case of PAHs, more toxic intermediates. Additionally, the AHR plays an important role in balancing regulatory and effector T cell responses. This study aimed to determine whether PAHs present in PM aggravate inflammation by driving inflammatory T cell and dendritic cell (DC) responses and their mechanism of action. This study tests the hypothesis that PAHs present in PM activate the AHR and alter the immune balance shifting from regulation to inflammation. To test this, the effects of SRM1649b OF on T cell differentiation and DC function were measured in vitro. SRM1649b OF enhanced Th17 differentiation in an AHR and CYP-dependent manner and increased the percent of IFNγ positive DCs in an AHR-dependent manner. SRM1649b PAH mixtures enhanced Th17 differentiation in an AHR-dependent but CYP-independent manner and increased the percent of IFNγ positive DCs. Cumulatively, these results suggest that PAHs present in PM are active components that contribute to immune responses in both T cells and BMDCs through the AHR and CYP metabolism. Understanding the role of AHR and CYP metabolism of PAHs in immune cells after PM exposure will shed light on new targets that will shift the immune balance from inflammation to regulation.
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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.