纳米体Nb07通过阻断PFKM-p53-PD-1轴来缓解败血症,以增强巨细胞灭菌
Binbin Ji1, Hui Guo1, Rong Xing2
1Jiangsu International Laboratory of Immunity and Metabolism, Jiangsu Province Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
Theranostics
|January 29, 2026
概括
败血症通过核PFKM与p53相互作用以抑制PD-1损害巨细胞细胞形成. 针对这种PFKM-p53与纳米体的相互作用,恢复了细胞分裂并缓解了败血症.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 巨细胞化对于在败血症期间清除病原体至关重要.
- 糖解酶6-酸果酸酶,肌肉类型 (PFKM) 影响巨细胞的功能和败血症的结果.
- 之前不清楚PFKM在治疗败血症期间调节巨细胞细胞的具体作用.
研究的目的:
- 阐明PFKM在败血症期间巨细胞灭菌的功能.
- 调查PFKM通过哪些分子机制影响败血症中的巨细胞功能.
- 探索毒症中准PFKM途径的治疗潜力.
主要方法:
- 从健康和败血症个体中分离出CD14+单细胞.
- 评估了PFKM亚细胞局部化,核转位和PFKM-p53相互作用,使用免疫光,Co-IP/MS和Co-IP.
- 利用转录基因测序,ELISA,RT-PCR,ChIP和双露西法酶记者测试来确定下游目标和监管机制.
- 选和合成的纳米体针对PFKM-p53相互作用.
- 在败血症的小鼠模型中评估治疗效果.
主要成果:
- 在败血症期间,PFKM转移到巨细胞核,通过非糖解功能损害细胞形成,并恶化败血症.
- PFKM与p53相互作用,促进其核转位和乙化,从而增强与Pdcd1促进体的结合,并抑制巨细胞灭菌.
- 阻断PFKM-p53与纳米体Nb07的相互作用恢复了巨细胞化,并缓解了小鼠的败血症.
结论:
- 一个新的PFKM-p53-PD-1轴抑制了巨细胞在败血症中的消化.
- 核PFKM在败血症期间充当巨细胞功能障碍的关键调节者.
- 针对PFKM-p53与纳米体的相互作用显示出治疗性治疗败血症治疗的前景.
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