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thalidezine通过破坏 lysosomal 功能触发 cathepsin B 介导的 T 细胞淋巴瘤中的细胞死亡
Yingjie Qing1, Su Xu2, Dawei Yang3
1State Key Laboratory of Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese medicine, Nanjing, China.
Chemico-biological interactions
|January 22, 2026
概括
一种新型 lysosomotropic 药物thalidezine 通过诱导 lysosomal 膜通透,有效地向T 细胞淋巴瘤 (TCL). 这释放了cathepsin B,启动了细胞亡,并为TCL提供了一个有前途的治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- T细胞淋巴瘤 (TCL) 是一种具有不良预后和耐治疗性的侵袭性癌症.
- 针对癌细胞死亡的细胞 lysosomes 是一个正在发展的战略.
- 在TCL中的 lysosomotropic 剂的治疗潜力需要进一步的研究.
研究的目的:
- 评估thalidezine (Tha) 作为一种针对T细胞淋巴瘤 (TCL) 的新型 lysosomotropic 剂 (LA).
- 阐明TCL中thalidezine诱导的细胞死亡的机制.
- 在TCL的小鼠模型中评估thalidezine的体内疗效.
主要方法:
- 用thalidezine治疗TCL细胞的方法.
- 测量溶酶体pH值和溶酶体膜通透性 (LMP).
- 通过caspase-3激活评估Cathepsin B (CTSB) 释放及其在亡中的作用.
- 在NOD/SCID小鼠携带TCL异种移植的体内疗效研究.
主要成果:
- thalidezine选择性地向TCL细胞,降低 lysosomal pH,并诱导LMP.
- LMP触发了CTSB释放到细胞质中,激活了caspase-3并启动了细胞亡.
- 在CTSB knockdown中,显著地保护了TCL细胞免受thalidezine诱导的死亡.
- thalidezine在体内表现出显著的抗瘤活性.
结论:
- thalidezine是T细胞淋巴瘤治疗的强有力的候选药物.
- 该机制涉及溶酶体武器化,释放CTSB触发细胞亡.
- 这突显了TCL的治疗相关漏洞.
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