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单个器官可视化追踪线粒体-溶解体交叉体内的天然甘氨酸氨基甘氨酸,用于炎症恒温

Ting Sun¹, Huarong Shao², Ran Wang³

¹School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China.

International journal of biological macromolecules

|January 29, 2025

概括

葡萄糖氨基甘 (GAG) 通过进入溶酶体并增强其活性来减少炎症. 氏丁硫酸盐 (CS) 特别针对线粒体,改善细胞健康和炎症平衡.

科学领域:

细胞生物学细胞生物学
生物化学生物化学
免疫学免疫学免疫学

背景情况:

葡萄糖氨基甘 (GAG) 是具有显著生物活性的天然产品,包括调节炎症恒常性.
精确的细胞内机制,通过GAG施加抗炎作用尚未完全理解.
了解这些机制对于开发针对炎症状况的新型治疗策略至关重要.

研究的目的:

阐明甘氨酸氨基甘氨酸 (GAG) 的细胞内抗炎机制.
通过使用先进的成像技术,实时可视化GAG的亚细胞定位和活动.
研究GAG在调节活性氧物种 (ROS) 等炎症标志物的作用.

主要方法:

开发一个单个有机体可视化跟踪框架.
使用先进的光成像技术和标记方法 (例如,用光素异硫酸 (FITC) 标记的GAG).
在有机体内动态追踪GAG的细胞下定位和细胞内活动.

主要成果:

观察到GAG进入溶酶体,增加它们的数量和活性.
氏丁硫酸盐 (CS) 显示出对 lysosomal 功能具有特别强大的影响.
已被证明,CS载荷的溶解体可以选择性地降解ROS丰富的线粒体,诱导线粒体裂变和重编程.
这一过程调节了线粒体-溶解体交叉,控制了线粒体质量,并维持了炎症恒常状态.

结论:

GAG,特别是CS,通过溶酶体通路调节细胞内炎症反应.
这项研究提供了GAG调节线粒体-溶解体交叉的可视证据,以控制炎症.
这项工作为自然产品维持细胞炎症平衡的机制提供了新的见解,并为未来的研究提供了途径.

关键词:

炎症性平衡状态 (inflammatory homeostasis) 是一种炎症性平衡状态.线粒体-溶酶体交叉连接线粒体重编程的重编程天然的葡萄糖氨基氨基甘油.单个有机细胞可视化

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