Aryl hydrocarbon receptor (AhR) and pregnane X receptor (PXR) play both distinct and common roles in the regulation of colon homeostasis and intestinal carcinogenesis

0576968 - BFÚ 2024 RIV GB eng J - Článek v odborném periodiku
Vazquez-Gomez, Gerardo - Petráš, Jiří - Dvořák, Z. - Vondráček, Jan
Aryl hydrocarbon receptor (AhR) and pregnane X receptor (PXR) play both distinct and common roles in the regulation of colon homeostasis and intestinal carcinogenesis.
Biochemical Pharmacology. Roč. 216, OCT 2023 (2023), č. článku 115797. ISSN 0006-2952. E-ISSN 1873-2968
Grant CEP: GA ČR(CZ) GA22-00355S
Institucionální podpora: RVO:68081707
Klíčová slova: Colon cancer * Aryl hydrocarbon receptor * Pregnane X receptor * Intestine * Microbial agonists * Inflammation * Epithelial barrier * Dietary contaminants
Obor OECD: Pharmacology and pharmacy
Impakt faktor: 5.8, rok: 2022
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S000629522300388X?via%3Dihub

Both aryl hydrocarbon receptor (AhR) and pregnane X receptor (PXR) belong among key regulators of xenobiotic metabolism in the intestinal tissue. AhR in particular is activated by a wide range of environmental and dietary carcinogens. The data accumulated over the last two decades suggest that both of these transcriptional regulators play a much wider role in the maintenance of gut homeostasis, and that both transcription factors may affect processes linked with intestinal tumorigenesis. Intestinal epithelium is continuously exposed to a wide range of AhR, PXR and dual AhR/PXR ligands formed by intestinal microbiota or originating from diet. Current evidence suggests that specific ligands of both AhR and PXR can protect intestinal epithelium against inflammation and assist in the maintenance of epithelial barrier integrity. AhR, and to a lesser extent also PXR, have been shown to play a protective role against inflammation-induced colon cancer, or, in mouse models employing overactivation of Wnt/beta-catenin signaling. In contrast, other evidence suggests that both receptors may contribute to modulation of transformed colon cell behavior, with a potential to promote cancer progression and/or chemoresistance. The review focuses on both overlapping and separate roles of the two receptors in these processes, and on possible implications of their activity within the context of intestinal tissue.
Trvalý link: https://hdl.handle.net/11104/0350474