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Multi-Stimuli Nanocomposite Therapeutic: Docetaxel Targeted Delivery and Synergies in Treatment of Human Breast Cancer Tumor.
Small ( IF 13.0 ) Pub Date : 2020-09-18 , DOI: 10.1002/smll.202002733
Reza Taheri-Ledari 1 , Wenjie Zhang 2 , Maral Radmanesh 1 , Seyedeh Shadi Mirmohammadi 1 , Ali Maleki 1 , Nicole Cathcart 3 , Vladimir Kitaev 3
Affiliation  

A versatile breast cancer‐targeting nanocomposite therapeutic combining docetaxel (DXL), polyvinyl alcohol (PVA) network for controlled release, and silica‐protected magnetic iron oxide nanoparticles (Fe3O4 NPs) for targeted delivery and gold nanoparticles (AuNPs) for plasmonic photothermal therapy (PPTT) is presented in this work. First, the designed nanocomposite is magnetically directed for cancer‐targeted therapy confirmed by computerized tomography (CT) scans. Second, 10% DXL by mass is loaded into PVA, a pH and temperature responsive gel, for controlled release. Third, PPTT is confirmed with Au/Fe3O4/PVA‐10%DXL using a prototype circulation system and then for tumor treatment in vivo; Au/Fe3O4/PVA‐10%DXL is conveniently directed and the entrapped DXL is selectively released (≈96%) via the interaction of green and near‐infrared (NIR) light with the localized surface plasmon resonance of AuNPs. A 75% cell death is reported from in vitro studies with DXL doses as low as 20 µg mL−1 of Au/Fe3O4/PVA‐10%DXL, and a 70% tumor growth inhibition is demonstrated by in vivo experiments with the biosafety studies confirming minimal side effects to other organs. Overall, the developed Au/Fe3O4/PVA‐10%DXL has a strong potential to simultaneously enhance CT imaging contrast together with the targeted delivery of DXL.

中文翻译:


多重刺激纳米复合材料治疗:多西紫杉醇靶向递送和协同治疗人类乳腺癌肿瘤。



一种多功能乳腺癌靶向纳米复合治疗药物,结合了多西紫杉醇 (DXL)、用于控制释放的聚乙烯醇 (PVA) 网络、用于靶向递送的二氧化硅保护的磁性氧化铁纳米颗粒 (Fe 3 O 4 NP) 和用于等离子体激元的金纳米颗粒 (AuNP)这项工作提出了光热疗法(PPTT)。首先,设计的纳米复合材料通过计算机断层扫描(CT)扫描证实可通过磁力定向用于癌症靶向治疗。其次,将 10% 质量的 DXL 加载到 PVA(一种 pH 和温度响应凝胶)中,以实现受控释放。第三,使用原型循环系统用Au/Fe 3 O 4 /PVA-10%DXL确认PPTT,然后用于体内肿瘤治疗; Au/Fe 3 O 4 /PVA-10%DXL 可以方便地定向,并且通过绿光和近红外 (NIR) 光与 AuNP 的局域表面等离子体共振的相互作用,选择性地释放捕获的 DXL (约 96%)。据体外研究报道,DXL 剂量低至 20 µg mL -1 Au/Fe 3 O 4 /PVA-10%DXL 时细胞死亡 75%,体内实验证明 70% 的肿瘤生长抑制作用生物安全研究证实对其他器官的副作用最小。总体而言,所开发的 Au/Fe 3 O 4 /PVA-10%DXL 具有同时增强 CT 成像对比度和 DXL 靶向递送的强大潜力。
更新日期:2020-10-16
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