河南省脑靶向生物纳米药物重点实验室
  河南省纳米生物医学国际联合实验室
 
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Central metal-derived co-assembly of biomimetic GdTPP/ZnTPP porphyrin nanocomposites for enhanced dual-modal imaging-guided photodynamic therapy.

Jiefei Wang, Zhongjie Wang, Yong Zhong, Yan Zou , Chong Wang, Haigang Wu, Albert Lee , Weitao Yang, Xiao Wang, Yanjie Liu, Dongya Zhang, Jiliang Yan, Mingcong Hao, Meng Zheng, Roger Chung, Feng Bai∗, Bingyang Shi∗

Biomaterials 2020, 229, 119576. (IF=15.305)


Abstract

Dual-modal imaging guided photodynamic therapy (PDT) of multifunctional nanocomposites holds great promise for precision tumor theranostics. However, poor heterogeneous interfacial compatibility between functional components, low hydrophilicity and complicated preparation of nanocomposites remain major obstaclesfor further bioapplication. Herein, a facile central metal-derived co-assembly strategy is developed to effffectively integrate gadolinium porphyrin (GdTPP) contrast agent and Zinc porphyrin (ZnTPP) photosensitizer into a homogeneous GdTPP/ZnTPP nanocomposites (GZNs). GZNs possesses the following advantages: (1) Greatly improved interfacial compatibility facilitated by incorporating two metalporphyrins with same group (phenyl-) and difffferent central metal atoms (Zn and Gd) leading to higher yield (4.7–5 fold) than either monocomponent nanoparticles. (2) Poor dispersity of GdTPP nanoparticles is greatly improved after integrating with ZnTPPblocks. (3) The GZNs inherit excellent flfluorescence imaging, high relaxation rate (8.18 mM−1 s−1 ) and singlet oxygen production from two raw metalporphyrins. After camouflflaging with homotypic cancer cell membrane for immunologic escape, the HeLa membrane coated GZNs (mGZNs) show enhanced in vivo MR/FL imaging guided anti-tumor targeting effiffifficiency of 80.6% for HeLa cells. Our new strategy using central metal-derived co-assembly of homogeneous building blocks greatly improves interfacial compatibility to achieve combined functions for visualized cancer theranostics.


https://doi.org/10.1016/j.biomaterials.2019.119576



  地址
河南省开封市
河南大学金明校区,生命科学学院
475004
 技术支持:河南科加
  联系方式
邮箱: jcbi@vip.henu.edu.cn
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