Cited by 175Toxic Organic Pollutants ImpactDermatology and Skin Diseasesmelanin and skin pigmentation

Role of AhR/ARNT system in skin homeostasis

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Furue, Masutaka, Takahara, Masakazu, Nakahara, Takeshi, Uchi, Hiroshi·2014·Archives of Dermatological Research

Abstract

Aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor that binds to structurally diverse synthetic and naturally occurring chemicals including dioxins, flavonoids, tryptophan photoproducts, and Malassezia metabolites. Upon binding to its ligands, cytoplasmic AhR translocates to the nucleus, heterodimerizes with aryl hydrocarbon receptor nuclear translocator (ARNT), and mediates numerous biological and toxicological effects by inducing the transcription of various AhR-responsive genes. AhR ligation controls oxidation/antioxidation, epidermal barrier function, photo-induced response, melanogenesis, and innate immunity. This review summarizes recent advances in the understanding of the regulatory mechanisms of skin homeostasis mediated by the AhR/ARNT system.

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Crossref · 10.1007/s00403-014-1481-7

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  • Air pollutants contain various exogenous ligands with high affinities for AhR, including PAHs and halogenated aromatic hydrocarbons such as TCDD, dimethylbenz[a]anthracene, methylcholanthrene, and benzo[a]pyrene.

    “Air pollutants contain various exogenous ligands with high affinities for AhR, including PAHs and halogenated aromatic hydrocarbons such as 2,3,7,8-tetrachlorodibenzodioxin (TCDD), dimethylbenz[a]anthracene, methylcholanthrene, and benzo[a]pyrene (BaP)30.”

    From Air Pollution and Skin Diseases (2025) · cites this paper as [30]

    The Introduction (page unavailable) identifies ubiquitous environmental contaminants, including dioxins and benzo[a]pyrene, as well-characterized high-affinity AhR ligands. The AhR/ARNT signaling section names TCDD and benzo[a]pyrene as ligands. Our copy does not identify dimethylbenz[a]anthracene or methylcholanthrene as AhR ligands, so the full list is not supported. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • The ligand/AHR complex binds to specific DNA recognition sites and upregulates transcription of responsive genes, such as CYP1A1, leading to robust generation of reactive oxygen species.

    “The ligand/AHR complex then binds to specific DNA recognition sites, namely, xenobiotic-responsive elements or dioxin-responsive elements, and upregulates the transcription of a series of responsive genes, such as CYP1A1 leading to a robust generation of reactive oxygen species [16,24].”

    From Antioxidant Artemisia princeps Extract Enhances the Expression of Filaggrin and Loricrin via the AHR/OVOL1 Pathway (2017) · cites this paper as [16]

    The AhR/ARNT signaling section says the ligand–AhR–ARNT complex binds xenobiotic- or dioxin-responsive elements and induces CYP1A1; its Fig. 1 caption says CYP1A1 metabolism of ligands such as dioxins produces many reactive oxygen species. But the oxidative-stress section says ROS production is ligand-dependent and that some AhR ligands activate the pathway without producing ROS. The claim overgeneralizes that outcome. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • AHR is a xenobiotic chemical sensor expressed abundantly in epidermal keratinocytes.

    “AHR is a xenobiotic chemical sensor that is expressed abundantly in epidermal keratinocytes [15,16].”

    From Antioxidant Artemisia princeps Extract Enhances the Expression of Filaggrin and Loricrin via the AHR/OVOL1 Pathway (2017) · cites this paper as [16]

    The Introduction describes AhR as a receptor for exogenous chemicals and says keratinocytes possess it; the AhR/ARNT signaling section links it to responses to xenobiotics. Neither passage establishes that AhR is expressed abundantly in epidermal keratinocytes. Page numbers are unavailable in our copy. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • AhR is widely expressed in the skin and is important in maintaining skin integrity and immune functions.

    “The AhR is widely expressed in the skin, and is important in maintaining skin integrity and immune functions30.”

    From Air Pollution and Skin Diseases (2025) · cites this paper as [30]

  • Various external and internal ligands, such as dioxins, polycyclic aromatic pollutants, benzo[a]pyrene, and phytochemicals, can bind to and activate AHR.

    “Various external and internal ligands, such as dioxins, polycyclic aromatic pollutants, benzo[a]pyrene, and phytochemicals, can bind to and activate AHR [15,16].”

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Authors
Furue, M., Takahara, M., Nakahara, T., & Uchi, H.
Affiliations
Kyushu University (JP)
Corresponding author
Furue, Masutaka
Venue
Archives of Dermatological Research
Published
2014-06-26
Volume
306
Issue
9
Pages
769-779
ISSN
  • 0003-9187 (ISSN-L)
  • 0340-3696
  • 1432-069X
OpenAlex
W1991467319
Cited by
175
References
97
Citations by year
2026: 6 · 2025: 9 · 2024: 14 · 2023: 18 · 2022: 20 · 2021: 17 · 2020: 21 · 2019: 18 · 2018: 22 · 2017: 14 · 2016: 4 · 2015: 9 · 2014: 2
FWCI
1.00
Type
journal article
Language
en
Open access
Locations
  • Archives of Dermatological Research (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • Ministry of Health, Labour and Welfare
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
  • Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
Keywords
aryl hydrocarbon receptor, ARNT, skin homeostasis, dioxins, flavonoids, tryptophan photoproducts, skin barrier function, melanogenesis, innate immunity, oxidative stress, transcriptional regulation, xenobiotic toxicity
MeSH terms
Animals, Gene Expression Regulation, Homeostasis, Humans, Immunity, Innate, Ligands, Melanins, Permeability, Skin, Skin Diseases, Signal Transduction, Receptors, Aryl Hydrocarbon, Oxidative Stress, Aryl Hydrocarbon Receptor Nuclear Translocator

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