Dual-binding nanoparticles improve the killing effect of T cells on solid tumor
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Published:2022-06-07
Issue:1
Volume:20
Page:
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ISSN:1477-3155
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Container-title:Journal of Nanobiotechnology
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language:en
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Short-container-title:J Nanobiotechnol
Author:
Luo Zhenyu,Luo Lihua,Lu Yichao,Zhu Chunqi,Qin Bing,Jiang Mengshi,Li Xiang,Shi Yingying,Zhang Junlei,Liu Yu,Shan Xinyu,Yin Hang,Guan Guannan,Du Yongzhong,Cheng Ningtao,You Jian
Abstract
AbstractAdoptive cell therapy (ACT) was one of the most promising anti-tumor modalities that has been confirmed to be especially effective in treating hematological malignancies. However, the clinical efficacy of ACT on solid tumor was greatly hindered by the insufficient tumor-infiltration of cytotoxic CD8 + T cells. Herein, we constructed a nanoplatform termed dual-binding magnetic nanoparticles (DBMN) that comprised PEG-maleimide (Mal), hyaluronic acid (HA) and Fe3O4 for adoptive T cell-modification and ACT-sensitization. After a simple co-incubation, DBMN was anchored onto the cell membrane (Primary linking) via Michael addition reaction between the Mal and the sulfhydryl groups on the surface of T cells, generating magnetized T cells (DBMN-T). Directed by external magnetic field and in-structure Fe3O4, DBMN-T was recruited to solid tumor where HA bond with the highly expressed CD44 on tumor cells (Secondary Linking), facilitating the recognition and effector-killing of tumor cells. Bridging adoptive T cells with host tumor cells, our DBMN effectively boosted the anti-solid tumor efficacy of ACT in a mouse model and simultaneously reduced toxic side effects.
Funder
National Nature Science Foundation of China
Publisher
Springer Science and Business Media LLC
Subject
Pharmaceutical Science,Applied Microbiology and Biotechnology,Biomedical Engineering,Molecular Medicine,Medicine (miscellaneous),Bioengineering
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