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西武可以通过减轻造血细胞损伤来缓解辐射诱导的免疫衰老
Mingyue Huang1, Anping Ye1,2, Haoyu Zhang1
1Department of Pharmacology and Toxicology , Beijing Institute of Radiation Medicine, Beijing, China.
Chinese medicine
|December 5, 2024
概括
西武 (SWD) 通过改善造血干细胞/原始细胞 (HSPC) 和免疫功能来缓解辐射诱导的免疫衰老. SWD减少了炎症和端粒缩短,为辐射损伤提供了潜在的治疗方法.
科学领域:
- 免疫学和血液学 免疫学和血液学
- 辐射生物学 辐射生物学
- 传统中国医药 传统中国医药
背景情况:
- 电离辐射 (IR) 会对造血干细胞/原生细胞 (HSPC) 和免疫系统组件造成长期损伤.
- 免疫衰老,以免疫功能受损和炎症增加为特征,是IR暴露的重要后果.
- 传统中医药的西武 (SWD) 正在研究其对抗IR诱导的免疫衰老的潜力.
研究的目的:
- 评估电离辐射 (IR) 对HSPC和免疫细胞的长期影响.
- 评估西武 (SWD) 在减轻小鼠中IR诱导的免疫衰老的疗效.
- 阐明SWD对造血和免疫系统的保护作用的潜在机制.
主要方法:
- C57BL/6J小鼠接受了6.0 Gy 60Co γ辐射,随后在30天内接受了SWD (5,10,20 g/kg/d) 的治疗.
- 流细胞计用于分析骨髓 (BM) 中的HSPC和中的免疫细胞 (T,B,NK细胞).
- 端粒长度,炎症标志物 (p16,β-galactosidase) 和JAK/STAT信号通路组件在BM和脏组织中得到量化.
主要成果:
- SWD治疗增加了HSPC比例 (LSK,多能原始体) 和改善了周围血液细胞计数,同时减少了促炎性细胞类型.
- 施用SWD增强了脏中的B细胞和NK细胞种群,并改善了海马,脏和胸腺的病理病变.
- SWD降低了衰老标志物的表达 (p16,β-galactosidase),抑制了BM细胞中的端粒缩短,并降低了JAK/STAT信号通路的激活.
结论:
- 西武 (SWD) 通过恢复造血和免疫功能,有效地减轻了电离辐射诱导的免疫衰老.
- SWD可以通过调节骨髓微环境中的JAK/STAT信号通路来发挥其保护作用,从而影响HSPC分化.
- 这项研究证明了SWD作为一种治疗剂的潜力,可以抵消辐射诱导的造血和免疫损伤.
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