Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation

Aryl hydrocarbon receptor (AHR) is an important regulator of skin barrier function. It also controls immune-mediated skin responses. The AHR modulates various physiological functions by acting as a sensor that mediates environment–cell interactions, particularly during immune and inflammatory respon...

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Main Authors: Nieves Fernández-Gallego, Francisco Sánchez-Madrid, Danay Cibrian
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/10/11/3176
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author Nieves Fernández-Gallego
Francisco Sánchez-Madrid
Danay Cibrian
author_facet Nieves Fernández-Gallego
Francisco Sánchez-Madrid
Danay Cibrian
author_sort Nieves Fernández-Gallego
collection DOAJ
description Aryl hydrocarbon receptor (AHR) is an important regulator of skin barrier function. It also controls immune-mediated skin responses. The AHR modulates various physiological functions by acting as a sensor that mediates environment–cell interactions, particularly during immune and inflammatory responses. Diverse experimental systems have been used to assess the AHR’s role in skin inflammation, including in vitro assays of keratinocyte stimulation and murine models of psoriasis and atopic dermatitis. Similar approaches have addressed the role of AHR ligands, e.g., TCDD, FICZ, and microbiota-derived metabolites, in skin homeostasis and pathology. Tapinarof is a novel AHR-modulating agent that inhibits skin inflammation and enhances skin barrier function. The topical application of tapinarof is being evaluated in clinical trials to treat psoriasis and atopic dermatitis. In the present review, we summarize the effects of natural and synthetic AHR ligands in keratinocytes and inflammatory cells, and their relevance in normal skin homeostasis and cutaneous inflammatory diseases.
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spelling doaj.art-c050c864cfa44083a147a361eb4692252023-11-22T22:52:24ZengMDPI AGCells2073-44092021-11-011011317610.3390/cells10113176Role of AHR Ligands in Skin Homeostasis and Cutaneous InflammationNieves Fernández-Gallego0Francisco Sánchez-Madrid1Danay Cibrian2Immunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, SpainImmunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, SpainImmunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, SpainAryl hydrocarbon receptor (AHR) is an important regulator of skin barrier function. It also controls immune-mediated skin responses. The AHR modulates various physiological functions by acting as a sensor that mediates environment–cell interactions, particularly during immune and inflammatory responses. Diverse experimental systems have been used to assess the AHR’s role in skin inflammation, including in vitro assays of keratinocyte stimulation and murine models of psoriasis and atopic dermatitis. Similar approaches have addressed the role of AHR ligands, e.g., TCDD, FICZ, and microbiota-derived metabolites, in skin homeostasis and pathology. Tapinarof is a novel AHR-modulating agent that inhibits skin inflammation and enhances skin barrier function. The topical application of tapinarof is being evaluated in clinical trials to treat psoriasis and atopic dermatitis. In the present review, we summarize the effects of natural and synthetic AHR ligands in keratinocytes and inflammatory cells, and their relevance in normal skin homeostasis and cutaneous inflammatory diseases.https://www.mdpi.com/2073-4409/10/11/3176aryl hydrocarbon receptorcutaneous inflammationimmune and inflammatory responsesAHR signaling pathwaysAHR endogenous and exogenous ligands
spellingShingle Nieves Fernández-Gallego
Francisco Sánchez-Madrid
Danay Cibrian
Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
Cells
aryl hydrocarbon receptor
cutaneous inflammation
immune and inflammatory responses
AHR signaling pathways
AHR endogenous and exogenous ligands
title Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
title_full Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
title_fullStr Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
title_full_unstemmed Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
title_short Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation
title_sort role of ahr ligands in skin homeostasis and cutaneous inflammation
topic aryl hydrocarbon receptor
cutaneous inflammation
immune and inflammatory responses
AHR signaling pathways
AHR endogenous and exogenous ligands
url https://www.mdpi.com/2073-4409/10/11/3176
work_keys_str_mv AT nievesfernandezgallego roleofahrligandsinskinhomeostasisandcutaneousinflammation
AT franciscosanchezmadrid roleofahrligandsinskinhomeostasisandcutaneousinflammation
AT danaycibrian roleofahrligandsinskinhomeostasisandcutaneousinflammation