大麻醇不会导致DNA双链断裂在人类肝脏衍生细胞模型中
Romano Weiss1, Victoria Liedtke1, Stefan Rödiger2
1Faculty 2 - Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Brandenburg, 01968, Germany.
Journal of cannabis research
|December 11, 2025
概括
大麻 (CBD) 并没有增加肝细胞中的DNA损伤,但它确实减少了细胞增殖,并增加了细胞内cAMP. 需要进一步的研究来了解CBD.
科学领域:
- 药理学 药理学是指药理学的学科.
- 细胞生物学 细胞生物学
- 毒理学 毒理学 毒理学
背景情况:
- 大麻二醇 (CBD) 具有治疗潜力,但引起了对DNA损伤的担忧.
- 之前关于CBD基因毒性的研究使用了可能不准确地代表人类肝脏代谢的细胞系.
- 研究CBD对DNA双链断裂 (DSB) 和HepG2细胞的增殖的影响至关重要.
研究的目的:
- 评估短期CBD暴露对人类肝细胞中DNADSBs的影响 (HepG2).
- 评估CBD对HepG2细胞增殖和大麻素受体表达的影响.
- 为了确定CBD是否在相关的肝细胞模型中诱导基因毒性.
主要方法:
- 在3-72小时内,HepG2细胞接受了不同度的CBD (5-50μg/mL) 治疗.
- 西方斑点分析用于检查大麻素受体1 (CB1) 和2 (CB2) 的表达.
- 使用γH2AX和53BP1焦点测试检测到DNADSB,以Etoposide作为阳性对照.
主要成果:
- CBD以剂量依赖的方式降低CB2受体表达的调节.
- 在CBD治疗后没有观察到DNADSBs (γH2AX和53BP1焦点) 的显著增加.
- CBD治疗导致HepG2细胞增殖显著减少.
结论:
- CBD调节CB2表达并增加HepG2细胞中的细胞内cAMP,这表明它具有刺激作用.
- 在5-50μg/mL的度下,CBD在HepG2细胞中没有显著诱导DNADSB.
- CBD显著降低了细胞增殖,并增加了HepG2细胞中的细胞内cAMP水平.
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