ArticleJournal of cannabis research2025
Cannabidiol sensitizes triple-negative breast cancer cells to NK cell-mediated killing via EGFR inhibition and FAS upregulation.
Article in Journal of cannabis research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundTriple-negative breast cancer (TNBC) is a highly aggressive subtype lacking targeted therapies, presenting a significant clinical challenge. The epidermal growth factor receptor (EGFR) plays a crucial role in TNBC progression, making it a promising target for therapeutic intervention. This study investigated the potential of cannabidiol (CBD) as a therapeutic agent that targets EGFR and associated signaling pathways in TNBC.
methodsThe TNBC cell lines MDA-MB-468 and MDA-MB-231 were treated with CBD in the presence or absence of epidermal growth factor (EGF). Cell proliferation, FAS protein expression, and activation of the EGFR signaling pathway were assessed. The cytotoxic effects of CBD on TNBC cells and natural killer (NK) cells were also evaluated.
resultsCBD significantly elevated FAS protein expression in MDA-MB-468 cells compared to EGF treatment alone (125.29 ± 5.87% vs. 83.07 ± 1.30%, p < 0.0001). Further molecular analysis revealed that CBD inhibited EGFR signaling by downregulating key oncogenic proteins, including KRAS, PI3K, and AKT. Moreover, CBD enhanced the cytotoxic effects of NK-92 cells, reducing the viability of MDA-MB-468 cells more effectively than EGF alone did (52.12 ± 1.28% vs. 113.69 ± 1.68%, p < 0.0001).
conclusionsThese findings suggest that CBD holds promise as a potential anticancer agent in TNBC by disrupting EGFR signaling and promoting apoptosis. However, further studies are necessary to optimize its therapeutic window and minimize adverse effects, particularly regarding its potential cytotoxicity to immune cells.
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