Macrophage membrane-biomimetic adhesive polycaprolactone nanocamptothecin for improving cancer-targeting efficiency and impairing metastasis  

作　　者：Kangkang Ying Yifeng Zhu Jianqin Wan Chenyue Zhan Yuchen Wang Binbin Xie Peirong Xu Hongming Pan Hangxiang Wang 

机构地区：[1]The First Affiliated Hospital,NHC Key Laboratory of Combined Multi-Organ Transplantation,Zhejiang University School of Medicine,Hangzhou,Zhejiang Province,310003,PR China [2]Jinan Microecological Biomedicine Shandong Laboratory,Jinan,Shandong Province,250117,PR China [3]Department of Hepatobiliary Surgery,The First Affiliated Hospital,Wenzhou Medical University,Wenzhou,Zhejiang Province,325000,PR China [4]Department of Medical Oncology,Sir Run Run Shaw Hospital,Zhejiang University School of Medicine,Hangzhou,Zhejiang Province,310016,PR China [5]Department of Chemical Engineering,Zhejiang University,Hangzhou,Zhejiang Province,310027,PR China

出　　处：《Bioactive Materials》2023年第2期449-462,共14页生物活性材料（英文）

基　　金：supported by grants from Zhejiang Provincial Natural Science Foundation of China(LR19H160002);National Natural Science Foundation of China(82073296 and 81773193);Research Project of Jinan Microecological Biomedicine Shandong Laboratory(JNL-2022010B).

摘　　要：The recent remarkable success and safety of mRNA lipid nanoparticle technology for producing severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)vaccines has stimulated intensive efforts to expand nanoparticle strategies to treat various diseases.Numerous synthetic nanoparticles have been developed for pharmaceutical delivery and cancer treatment.However,only a limited number of nanotherapies have enter clinical trials or are clinically approved.Systemically administered nanotherapies are likely to be sequestered by host mononuclear phagocyte system(MPS),resulting in suboptimal pharmacokinetics and insufficient drug concentrations in tumors.Bioinspired drug-delivery formulations have emerged as an alternative approach to evade the MPS and show potential to improve drug therapeutic efficacy.Here we developed a biodegradable polymer-conjugated camptothecin prodrug encapsulated in the plasma membrane of lipopolysaccharide-stimulated macrophages.Polymer conjugation revived the parent camptothecin agent(e.g.,7-ethyl-10-hydroxy-camptothecin),enabling lipid nanoparticle encapsulation.Furthermore,macrophage membrane cloaking transformed the nonadhesive lipid nanoparticles into bioadhesive nanocamptothecin,increasing the cellular uptake and tumor-tropic effects of this biomimetic therapy.When tested in a preclinical murine model of breast cancer,macrophage-camouflaged nanocamptothecin exhibited a higher level of tumor accumulation than uncoated nanoparticles.Furthermore,intravenous administration of the therapy effectively suppressed tumor growth and the metastatic burden without causing systematic toxicity.Our study describes a combinatorial strategy that uses polymeric prodrug design and cell membrane cloaking to achieve therapeutics with high efficacy and low toxicity.This approach might also be generally applicable to formulate other therapeutic candidates that are not compatible or miscible with biomimetic delivery carriers.

关 键 词：Polymer prodrug Macrophage membrane Cancer nanomedicine Antimetastasis Nanocamptothecin 

分 类 号：R730[医药卫生—肿瘤]