抑制炎症性细胞因子风暴
1Department of Biochemistry and Molecular Biology, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel.
International journal of molecular sciences
|October 26, 2024
概括
研究人员开发了针对B7/CD28轴的基模拟剂,以控制有害的细胞因子风暴. 这些在治疗严重的细菌感染和预防多器官损伤方面表现有前途.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 传染性疾病 传染性疾病
背景情况:
- 过度的炎症性细胞因子反应,或细胞因子风暴,有助于各种感染的严重疾病和致死率.
- 细菌败血症和毒性休克,特别是多药耐药菌株,构成重大威胁.
- B7/CD28共刺激轴在调节免疫反应方面发挥着至关重要的作用.
研究的目的:
- 开发一种分子工具来分析人类炎症反应中的B7/CD28轴.
- 创建一种治疗策略,以减轻细胞因子风暴,同时保持宿主防御.
- 调查针对CD28-B7相互作用的基模拟剂的疗效.
主要方法:
- 设计的短仿真体模仿人体CD28和B7受体同极体接口.
- 利用这些作为分子工具来剖析B7/CD28共刺激轴.
- 在细菌超抗原诱导毒性冲击的小鼠模型和在死软组织感染的背景下测试了的有效性.
主要成果:
- 模仿剂有效地减轻了炎症反应.
- 用治疗的小鼠受到致命的格拉姆阳性细菌超抗原诱导的毒性冲击的保护.
- 类药物在明显低于诱导剂的摩尔量时表现出有效性.
结论:
- 针对CD28-B7参与的模仿剂提供了针对细胞因子风暴的新治疗策略.
- 这种方法对治疗严重的细菌感染如毒性休克和死软组织感染具有前景.
- 开发出来的可以作为理解炎症机制的宝贵工具.
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