Cannabidiol-rich extract suppresses the activation of proinflammatory genes IL-1β and IL-6 in equine mesenchymal stem cells stimulated with lipopolysaccharide.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Peripheral nerve injuries (PNI) often lead to long-term functional impairment. Mesenchymal stem cells (MSCs) and cannabidiol (CBD) have shown anti-inflammatory and neuroprotective effects in vitro, which may be relevant for PNI research. The aim of this study was to evaluate CBD-rich cannabis extract’s potential to induce anti-inflammatory and neurotrophic gene expression in equine adipose tissue-derived MSCs (EqAT-MSCs) in an inflammatory in vitro environment. The morphology and metabolic activity of EqAT-MSCs (n = 4) were assessed after CBD-rich extract priming at concentrations of 3, 5, 7, and 9 µM for 24 and 48 h. Cytokine and neurotrophic gene expression was evaluated under these conditions: DMEM (unprimed), DMEM + LPS (lipopolysaccharide) (10 ng/ml), and LPS (10 ng/ml) + DMEM + CBD at 3, 5, and 7 µM for 24 and 48 h. No morphological changes were observed in primed EqAT-MSCs versus unprimed cells. EqAT-MSCs showed a reduction in metabolic activity at 9 µM after 24 h. CBD priming following LPS stimulation led to statistically significant changes in EqAT-MSC gene expression. BDNF expression increased after 48 h (3 and 5 µM), while NGF expression decreased at both 24 and 48 h (3, 5, and 7 µM). IL-1β expression decreased after 24 h (3 and 7 µM), and IL-6 levels decreased at both 24 (5 and 7 µM) and 48 h (3, 5, and 7 µM). No significant changes were observed in GDNF, TNF-ɑ, IFN

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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