Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.
Commun Biol. 2022 Sep 21;5(1):995. doi: 10.1038/s42003-022-03966-w.
An efficient strategy for cancer therapy is presented, in which a tumor mass is initially pretreated with calcium hydroxide, then treated with Taxotere (TXT). In this regard, an advanced delivery system based on iron oxide nanoparticles has been designed. The surface of nanoparticles was functionalized with sortilin (SORT-1, a human IgG1 monoclonal antibody) that specifically encodes caov-4 ovarian cancerous cells. Plasmonic heating of the incorporated gold nanoparticles in polyvinyl alcohol (PVA) has been exploited to control the release process of TXT. The in vitro, ex vivo and in vivo experiments have exhibited high efficacy of a seven-day pretreatment by Ca(OH) plus 14 days treatment program by Ca(OH)@FeO/PVA/Au-SORT nano-therapeutics, where more penetration ratio resulted in tumor growth inhibition by ca. 78.3%. As a result, due to showing high values of the anti-tumor properties and biosafety, the presented pretreatment strategy is suggested for more effective treatment on the aged tumors.
提出了一种用于癌症治疗的有效策略,该策略首先用氢氧化钙预处理肿瘤块,然后用 Taxotere(TXT)进行处理。在这方面,设计了一种基于氧化铁纳米粒子的先进递药系统。纳米粒子的表面用转铁蛋白(SORT-1,一种人 IgG1 单克隆抗体)功能化,该抗体特异性编码 caov-4 卵巢癌细胞。利用聚已醇(PVA)中掺入的金纳米粒子的等离子体加热来控制 TXT 的释放过程。体外、离体和体内实验都显示出 Ca(OH)预处理 7 天和 Ca(OH)@FeO/PVA/Au-SORT 纳米治疗 14 天的治疗方案具有很高的疗效,其中渗透比增加导致肿瘤生长抑制约 78.3%。结果,由于表现出高抗肿瘤特性和生物安全性,因此建议采用所提出的预处理策略对老年肿瘤进行更有效的治疗。
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