在小鼠模型中使用龙多糖作为循环胺诱导的辅助剂
Yajuan Bai1,2,3,4, Bei Fan1,2,3, Fengzhong Wang1,2,3
1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
通过增强免疫功能和减少氧化应激,保护长多糖 (LP) 免受化疗副作用的影响. 这种天然化合物具有减轻化疗诱导免疫抑制和损伤的助剂的潜力.
科学领域:
- 免疫学
- 药理学
- 自然产品化学
背景情况:
- 化疗经常导致免疫抑制和氧化应激, 需要有效的辅助剂.
- 龙多糖 (LP) 是缓解这些不良反应的潜在候选药物.
研究的目的:
- 调查龙多糖 (LP) 对循环胺诱导的免疫抑制和氧化应激的保护作用.
- 阐明LP作用的基本分子机制.
主要方法:
- 用环胺和LP治疗小鼠.
- 通过测量血清免疫球蛋白和细胞因子水平来评估免疫功能.
- 在器官和血清中分析了氧化应激标志物 (SOD,GSH,NO).
- 在体外研究中使用Caco-2/ RAW264. 7共培系统来研究LP对NF-κB通路的影响.
主要成果:
- 使用LP显著增强了免疫功能,增加了免疫球蛋白和有益细胞因子水平 (IL-10,IL-12,IFN-γ),同时降低了促炎媒介 (TGF-β1,IL-21).
- 通过增加多个器官和血清中的SOD,GSH和NO水平,LP恢复了氧化平衡.
- 通过降低TLR4表达和抑制NF- kB转位,减少炎症媒介 (TNF- α,IL-6,IL-8,iNOS) 的作用,LP分离物抑制了NF- kB通路的激活.
结论:
- 龙多糖具有显著的免疫调节和抗氧化特性.
- 作为缓解化疗引起的副作用的天然辅助剂, LP 是一个有前途的治疗策略.
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