NIR light-induced tumor phototherapy using ICG delivery system based on platelet-membrane-camouflaged hollow bismuth selenide nanoparticles  

作　　者：Kaili Ding Cuixia Zheng Lingling Sun Xinxin Liu Yanyan Yin Lei Wang 

机构地区：[1]School of Pharmaceutical Sciences,Zhengzhou University,Zhengzhou 450001,China [2]School of Pharmacy,Xinxiang Medical University.Xinxiang 453000,China [3]Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases,Zhengzhou 450001,China

出　　处：《Chinese Chemical Letters》2020年第5期1168-1172,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.81673021 and U1804183);the Scientific and Technological Project of Henan Province(No.182102310117)。

摘　　要：Near-infrared(NIR)light-triggered photothermal therapy(PTT)is a promising treatment strategy for treating cancer.The combination of nanotechnology and NIR has been widely applied.However,the therapeutic efficacy of the drug-delivery system depends on their ability to avoid phagocytosis of endothelial system,cross the biological barriers,prolong circulation life,localize and rapidly release the therapeutic at target sites.In this work,we designed a platelet membrane(PM)-camouflaged hollow mesoporous bismuth selenide nanoparticles(BS NPs)loading with indocyanine green(ICG)(PM@BS-ICG NPs)to achieve the above advantages.PM-coating has active tumor-targe ting ability which could preve nt drug leakage and provide drug long circulation,causing drug delivery systems to accumulate in tumor sites effectively.Moreover,as a type of the photothermal sensitizers,BS NPs are used as the inner cores to improve ICG stability and are served as scaffolds to enhance the hardness of this drug delivery system.For one hand,the thermal vibration of BS NPs under NIR laser irradiation causes tumor inhibition through hyperthermia.For another hand,this hyperthermia process could damage PM and let ICG rapid release from PM@BS-ICG NPs.The in vitro and in vivo results showed that this biomimetic nano-drug delivery system exhibits obvious antitumor activity which has good application prospect.

关 键 词：Platelet membrane Biomimetic nanoplatform Photothermal therapy TUMOR-TARGETING Near-infrared laser irradiation 

分 类 号：R730.5[医药卫生—肿瘤]