Volume 61, Issue 45 e202210487
Research Article

An Ion-Enhanced Oncolytic Virus-Like Nanoparticle for Tumor Immunotherapy

Fan Wu

Fan Wu

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433 P. R. China

These authors contributed equally to this work.

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Prof. Yanli Li

Prof. Yanli Li

Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436 P. R. China

These authors contributed equally to this work.

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Yun Meng

Yun Meng

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

These authors contributed equally to this work.

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Dr. Xuechao Cai

Dr. Xuechao Cai

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Jieyun Shi

Jieyun Shi

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Jinjin Li

Jinjin Li

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Yang Chen

Dr. Yang Chen

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Li Zhang

Dr. Li Zhang

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Xianfu Meng

Dr. Xianfu Meng

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Huiyan Li

Dr. Huiyan Li

Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433 P. R. China

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Prof. Xingwu Jiang

Prof. Xingwu Jiang

Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433 P. R. China

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Prof. Zhenxiao Fu

Prof. Zhenxiao Fu

State Key Laboratory of Advanced Materials and Electronic Components, Zhaoqing, 526020 P. R. China

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Prof. Yelin Wu

Corresponding Author

Prof. Yelin Wu

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Prof. Wenbo Bu

Corresponding Author

Prof. Wenbo Bu

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433 P. R. China

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First published: 18 September 2022
Citations: 20

Graphical Abstract

An oncolytic virus-mimicking strategy is proposed to enhance T cell-mediated tumor immunotherapy by synthesizing an ion-enhanced nanoplatform PolyIC@ZIF-8. This nanoplatform not only mimics an oncolytic virus-like function by inducing cell apoptosis to recruit T cells in a tumor antigen-dependent manner but also releases Zn2+ to enhance T cell recruitment and activation in a tumor antigen-independent manner.

Abstract

T lymphocytes (T cells) are essential for tumor immunotherapy. However, the insufficient number of activated T cells greatly limits the efficacy of tumor immunotherapy. Herein, we proposed an oncolytic virus-mimicking strategy to enhance T cell recruitment and activation for tumor treatment. We constructed an oncolytic virus-like nanoplatform (PolyIC@ZIF-8) that was degraded in the acidic tumor environment to release PolyIC and Zn2+. The released PolyIC exhibited an oncolytic virus-like function that induced tumor cell apoptosis and promoted T cell recruitment and activation through a tumor antigen-dependent manner. More importantly, the released Zn2+ not only enhanced T cell recruitment by inducing CXCL9/10/11 expression but also promoted T cell activation to increase interferon-γ (INF-γ) expression by inducing the phosphorylation of ZAP-70 via a tumor antigen-independent manner. This Zn2+-enhanced oncolytic virus-mimicking strategy provides a new approach for tumor immunotherapy.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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