Zhang Hai-Lin, Wang Yi, Tang Qi, Ren Bing, Yang Shi-Ping, Liu Jin-Gang
Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
Key Lab of Resource Chemistry of MOE & Shanghai Key Lab of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China.
J Inorg Biochem. 2023 Apr;241:112133. doi: 10.1016/j.jinorgbio.2023.112133. Epub 2023 Jan 20.
A hollow mesoporous manganese dioxide-based (H-MnO) multifunctional nanoplatform, H-MnO @AFIPB@PDA@Ru-NO@FA (MAPRF NPs), was prepared for synergistic cancer treatment, in which a histone deacetylase inhibitor AFIPB was loaded in its hollow cavity and a ruthenium nitrosyl donor (Ru-NO) and a folic acid (FA) targeting group were covalently decorated on its covered polydopamine (PDA) layer. The MAPRF NPs showed tumor microenvironment (TME)-responsive properties of depletion of glutathione (GSH) to disrupt the antioxidant defense system and on-demand drug delivery. And the released Mn further catalyzed the decomposition of endogenous HO to produce highly toxic hydroxyl radicals (·OH) for enhanced chemodynamic therapy (CDT). Furthermore, upon 808 nm light irradiation MAPRF NPs exhibited controlled nitric oxide (NO) delivery and simultaneously produced significant photothermal effect. Consequently, MAPRF NPs showed high mortality toward cancer cells in the presence of 808 nm light irradiation. This work provides a paradigm of multimodal synergistic therapy that combines NO-based gas therapy with TME modulation for efficient antitumor therapy.
制备了一种基于中空介孔二氧化锰(H-MnO)的多功能纳米平台H-MnO@AFIPB@PDA@Ru-NO@FA(MAPRF NPs)用于协同癌症治疗,其中组蛋白去乙酰化酶抑制剂AFIPB负载于其空腔中,亚硝酰钌供体(Ru-NO)和叶酸(FA)靶向基团共价修饰于其包覆的聚多巴胺(PDA)层上。MAPRF NPs表现出肿瘤微环境(TME)响应特性,可消耗谷胱甘肽(GSH)以破坏抗氧化防御系统并实现按需给药。释放出的Mn进一步催化内源性H₂O₂分解产生高毒性的羟基自由基(·OH)以增强化学动力疗法(CDT)。此外,在808 nm光照射下,MAPRF NPs表现出可控的一氧化氮(NO)释放并同时产生显著的光热效应。因此,在808 nm光照射下,MAPRF NPs对癌细胞显示出高致死率。这项工作提供了一种多模式协同治疗的范例,即将基于NO的气体疗法与TME调节相结合以实现高效抗肿瘤治疗。
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