Adv Healthc Mater:PIGH NPs肿瘤治疗纳米系统可同时进行癌症成像和治疗

2019-11-25 不详 网络

构建多功能纳米颗粒以获取精确的癌症治疗的简便方法仍然是一个巨大的挑战。本文中,通过疏水相互作用将紫杉醇(PTX)和吲哚菁绿(ICG)分子加载到Gd2O3@人血清白蛋白(HSA)纳米颗粒(PIGH NPs)的基质中,尝试构建一种能够同时进行癌症成像和治疗的生物相容性治疗药物纳米平台。体外研究表明,PIGH NP具有均匀的粒径,持续的药物释放曲线,强大的纵向弛豫性,有效的光热效应,有效的单线态氧生成以

构建多功能纳米颗粒以获取精确的癌症治疗的简便方法仍然是一个巨大的挑战。本文中,通过疏水相互作用将紫杉醇(PTX)和吲哚菁绿(ICG)分子加载到Gd2O3@人血清白蛋白(HSA)纳米颗粒(PIGH NPs)的基质中,尝试构建一种能够同时进行癌症成像和治疗的生物相容性治疗药物纳米平台。

体外研究表明,PIGH NP具有均匀的粒径,持续的药物释放曲线,强大的纵向弛豫性,有效的光热效应,有效的单线态氧生成以及对光漂白的理想抵抗力。此外,与载有PTX/ICG的HSA纳米颗粒相比,PIGH NPs在808 nm近红外(NIR)辐射下,基于单线态氧触发的溶酶体破坏和对4T1细胞的显着细胞毒性作用,实现了高细胞摄取,有效的细胞质药物转运( PIH NP)和免费的PTX/ICG。静脉注射后,PIGH NPs在具有4T1荷瘤小鼠模型中表现出较好的肿瘤蓄积性并实现了有效的肿瘤消融,并具有出色的双重近红外荧光/磁共振(NIRF/MR)成像指导的协同化学光疗。

因此,PIGH NPs可以用作潜在的肿瘤治疗纳米系统,用于同时进行癌症成像和治疗。

原始出处:

Hao T, Chen Q, et al., Biomineralized Gd2O3@HSA Nanoparticles as a Versatile Platform for Dual-Modal Imaging and Chemo-Phototherapy-Synergized Tumor Ablation. Adv Healthc Mater. 2019 Nov 18:e1901005. doi: 10.1002/adhm.201901005. 

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