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Modulation of Redox and Inflammatory Signaling in Human Skin Cells Using Phytocannabinoids Applied after UVA Irradiation: In Vitro Studies

Wroński, Adam; Jarocka-Karpowicz, Iwona; Surażyński, Arkadiusz; Gegotek, Agnieszka; Žarković, Neven; Skrzydlewska, Elżbieta (2024) Modulation of Redox and Inflammatory Signaling in Human Skin Cells Using Phytocannabinoids Applied after UVA Irradiation: In Vitro Studies. Cells, 13 (11). ISSN 2073-4409

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Abstract

UVA exposure disturbs the metabolism of skin cells, often inducing oxidative stress and inflammation. Therefore, there is a need for bioactive compounds that limit such consequences without causing undesirable side effects. The aim of this study was to analyse in vitro the effects of the phytocannabinoids cannabigerol (CBG) and cannabidiol (CBD), which differ in terms of biological effects. Furthermore, the combined use of both compounds (CBG+CBD) has been analysed in order to increase their effectiveness in human skin fibroblasts and keratinocytes protection against UVA-induced alternation. The results obtained indicate that the effects of CBG and CBD on the redox balance might indeed be enhanced when both phytocannabinoids are applied concurrently. Those effects include a reduction in NOX activity, ROS levels, and a modification of thioredoxin-dependent antioxidant systems. The reduction in the UVA-induced lipid peroxidation and protein modification has been confirmed through lower levels of 4-HNE-protein adducts and protein carbonyl groups as well as through the recovery of collagen expression. Modification of antioxidant signalling (Nrf2/HO-1) through the administration of CBG+CBD has been proven to be associated with reduced proinflammatory signalling (NFκB/TNFα). Differential metabolic responses of keratinocytes and fibroblasts to the effects of the UVA and phytocannabinoids have indicated possible beneficial protective and regenerative effects of the phytocannabinoids, suggesting their possible application for the purpose of limiting the harmful impact of the UVA on skin cells.

Item Type: Article
Uncontrolled Keywords: fibroblasts; inflammation; keratinocytes; phytocannabinoids; redox balance; UVA radiation
Subjects: BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
Divisions: Division of Molecular Medicine
Depositing User: Ivana Vuglec
Date Deposited: 13 Oct 2025 08:53
URI: http://fulir.irb.hr/id/eprint/10003
DOI: 10.3390/cells13110965

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