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[Adv. Funct. Mater.]Cation-π Interaction-Mediated Tumour Drug Delivery for Deep Intratumoral Penetration and Treatment
作者:Chengfei Liu, Muqiong Li, Jianxiang Sun, Li Fan,* and Wei Tian*
關鍵字:Cation-π Interaction,Tumour Drug Delivery,Deep Intratumoral Penetration
論文來源:期刊
具體來源:Adv. Funct. Mater. 2022, 32, 2205043
發表時間:2022年

   The limited efficacy of deep tumor treatments has been considered the “Achilles’ heel” of anticancer therapy due to multiple biological barriers. Whether passive diffusion or active transport has difficulties completely overcoming these obstacles. Herein, cation-π interactions are utilized to construct a tumor drug delivery system integrating the merits of both passive and active transport mechanisms. A cation-π interaction bridged trimetallic supramolecular drug complex (Cπ-TMSDC) is constructed based on a drug consisting of one cisplatin molecule linked by K+ (Pt-COOK) and the other drug with a Ru metal complex containing curcumin (Ru-Cur). The obtained Cπ-TMSDC further self-assembles into cation-π-based trimetallic supramolecular drug micelles (Cπ-TMSDMs) with efficient and stable transportation in vivo due to the strong cation-π interaction formed between K+ and the curcumin unit in the Cπ-TMSDC. In acidic tumor microenvironment, the cation-π interaction smartly dissociates, facilitating the quick release of Pt-COOK outside Cπ-TMSDMs to rapidly infiltrate the outer cellular layers by passive diffusion. Meanwhile, the dissociated Ru-Cur from the core layer of the Cπ-TMSDMs form secondary self-assemblies to deeply penetrate inside the solid tumor. Therefore, this strategy results in an efficient tumor drug delivery platform with enhanced deep intratumoral penetration, improved therapeutic effects, and reduced systemic toxicity to normal organs.


全文鏈接: https://doi.org/10.1002/adfm.202205043.

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