Nutrients · 2026
Cannabidiol-Dominant Cannabis sativa L. Inflorescence Extract Ameliorates Atopic Dermatitis by Modulating NLRP3 Inflammasome and JAK1/STAT6 Signaling in DNCB-Induced Mice.
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Han Ji-Ye, Lim Do-Won, Kwon Osoung, Lee Yun Jung, Choi Minji, Lee Bori, Noh Soohyang, Cho Mansoo, Lee Young-Mi
Аннотация
BACKGROUND/OBJECTIVES: Atopic dermatitis (AD) is a chronic inflammatory skin disorder requiring sustainable therapeutic alternatives. Cannabis sativa L. is a valuable industrial crop rich in bioactive secondary metabolites; its potential as a standardized functional ingredient for promoting skin health has not yet been fully investigated. This study aimed to evaluate the therapeutic effects of a chemically characterized C. sativa inflorescence ethanol extract (CSE) on AD.
METHODS: To evaluate the efficacy of CSE, phytochemical profiling was performed using UPLC, and its underlying molecular mechanisms were investigated in a DNCB-induced mouse model.
RESULTS: UPLC analysis was employed to establish the phytochemical profile, identifying 15 cannabinoids and quantifying 8 major components. CBDA was the most abundant component, with a content of 261.79 mg/g in the extract. In a DNCB-induced mouse model, CSE significantly reduced mast cell infiltration and serum IgE levels while downregulating Th2-associated cytokines. At the molecular level, CSE inhibited the activation of the MAPK, NLRP3 inflammasome, and JAK1/STAT6 signaling pathways. Crucially, CSE treatment substantially increased the expression of skin barrier proteins, such as filaggrin and involucrin, thereby enhancing skin hydration.
CONCLUSIONS: These findings suggest CSE as a high-value functional ingredient capable of ameliorating AD by modulating multi-target immune responses. This study provides a robust scientific basis for utilizing standardized C. sativa inflorescence as a potent functional ingredient or a nutraceutical agent for the management of chronic skin inflammatory conditions.
METHODS: To evaluate the efficacy of CSE, phytochemical profiling was performed using UPLC, and its underlying molecular mechanisms were investigated in a DNCB-induced mouse model.
RESULTS: UPLC analysis was employed to establish the phytochemical profile, identifying 15 cannabinoids and quantifying 8 major components. CBDA was the most abundant component, with a content of 261.79 mg/g in the extract. In a DNCB-induced mouse model, CSE significantly reduced mast cell infiltration and serum IgE levels while downregulating Th2-associated cytokines. At the molecular level, CSE inhibited the activation of the MAPK, NLRP3 inflammasome, and JAK1/STAT6 signaling pathways. Crucially, CSE treatment substantially increased the expression of skin barrier proteins, such as filaggrin and involucrin, thereby enhancing skin hydration.
CONCLUSIONS: These findings suggest CSE as a high-value functional ingredient capable of ameliorating AD by modulating multi-target immune responses. This study provides a robust scientific basis for utilizing standardized C. sativa inflorescence as a potent functional ingredient or a nutraceutical agent for the management of chronic skin inflammatory conditions.