以PSMA为向的树脂分子作为前列腺癌有效的抗癌药物输送载体
Anubhav Dhull1, Jing Wei2, Anunay James Pulukuri1
1Department of Chemistry, College of Arts and Sciences, Washington State University, Pullman, WA, USA. anjali.sharma@wsu.edu.
Nanoscale
|March 5, 2024
概括
研究人员开发了一个新的纳米平台 (PD-CTT1298),用于向前列腺癌 (PCa) 药物输送. 这种针对PSMA的树枝状分子选择性地向PCa细胞输送化疗,提高疗效并减少副作用.
科学领域:
- 纳米医学是一种纳米医学.
- 在瘤学瘤学.
- 药物运输 药物运输 药物运输
背景情况:
- 前列腺癌 (PCa) 具有显著的死亡风险,由于选择性药物输送的挑战,晚期的治疗选择有限.
- 虽然前列腺特异性膜抗原 (PSMA) 是PCa成像和治疗的目标,但其用于化疗的使用尚未在临床上取得成功.
研究的目的:
- 开发一个针对PSMA的纳米平台 (PD-CTT1298) 用于选择性地将强效化疗药物输送到PCa细胞的细胞内.
- 评估这个纳米平台在准PSMA阳性PCa和提供抗癌剂方面的有效性.
主要方法:
- 一个第4代氧聚胺胺树脂聚合物 (PD) 与不可逆转的PSMA配体 (CTT1298) 结合,以创建PD-CTT1298纳米平台.
- 评估了PSMA结合亲和力 (IC50),PSMA (+) PCa细胞中的细胞吸收,小鼠模型中的瘤向和合卡博桑提尼布的体外抗增殖活性.
主要成果:
- PD-CTT1298-Cy5通过PSMA介导的内部化证明了纳米 PSMA 的结合亲和力和PSMA (+) PCa细胞的选择性吸收.
- 在体内研究表明,PSMA (+) 瘤的选择性向与非位器官的快速清除,最大限度地减少系统性副作用.
- 与纳米平台相结合的卡博桑提尼布与免费药物相比,显著增强了抗增殖活性.
结论:
- PD-CTT1298纳米平台提供了一种多功能方法,可以选择性地向PCa提供高有效载荷的强化学疗法药物.
- 这一策略有望通过提高疗效和减轻剂量相关的全身副作用来改善PCa的治疗结果.
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