由金属有机框架纳米平台启动的衰老为主导的铁灭,用于增强癌症治疗
Zeyuan Yang1, Yang Peng1, Jie Zang2
1Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China.
ACS nano
|December 8, 2025
概括
这项研究介绍了一种新的纳米平台 (ZPG),它结合了细胞循环抑制剂 (palbociclib) 和离子,在衰老的癌细胞中诱导铁亡,增强了抗瘤功效,降低了毒性.
科学领域:
- 在瘤学瘤学.
- 纳米医学是一种纳米医学.
- 生物化学 生物化学
背景情况:
- 循环素依赖性激酶 (CDK) 抑制剂在癌症治疗中表现有前途,因为它们可以阻止细胞增殖并诱导衰老.
- 由于细胞静止作用的有限疗效和耐药性阻碍了CDK抑制剂的临床使用.
- 需要一种策略来将细胞静止效应转化为细胞毒性结果,以改善癌症治疗.
研究的目的:
- 开发一种基于金属有机框架 (MOF) 的纳米平台 (ZPG),用于编码提供CDK4/6抑制剂和离子.
- 为了研究一种老化为主的铁灭策略,以提高口腔状细胞癌 (OSCC) 的抗瘤疗效.
- 评估联合治疗对癌细胞死亡和治疗结果的协同效应.
主要方法:
- 合成的ZPG纳米平台用于palbociclib和离子 (Ga3+) 的配送.
- 评估ZPG稳定性,细胞吸收和药物释放动力学.
- 研究palbociclib诱导的衰老及其对铁灭调节者的影响 (GPX4,GSH,ACSL4).
- 评估Ga3+介导的铁代谢干扰和老化OSCC细胞中的铁亡诱导.
- 在体外和体内研究以确定抗瘤功效和毒性.
主要成果:
- ZPG表现出良好的稳定性,细胞吸收和Palbociclib和Ga3+的受控释放.
- 帕尔博西克利布在OSCC细胞中诱导衰老,降低抗费洛普托斯因子的调节和上调亲费洛普托斯因子的调节.
- 通过破坏铁代谢,Ga3+增强了ferroptotic应激,导致老化的细胞中的选择性ferroptosis.
- 启用ZPG的衰老预制铁灭策略在体外和体内显著增强了抗瘤疗效,毒性最小.
结论:
- ZPG纳米平台有效地结合了细胞循环抑制和铁灭诱导,用于协同的癌症治疗.
- 衰老原始化的铁亡是一种有希望的,机理性的方法来克服CDK抑制剂的局限性.
- 这一策略为改善癌症治疗结果提供了潜在的新途径,通过将细胞静止效应转化为细胞毒性效应.
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