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- Title
An Ion‐Enhanced Oncolytic Virus‐Like Nanoparticle for Tumor Immunotherapy.
- Authors
Wu, Fan; Li, Yanli; Meng, Yun; Cai, Xuechao; Shi, Jieyun; Li, Jinjin; Chen, Yang; Zhang, Li; Meng, Xianfu; Li, Huiyan; Jiang, Xingwu; Fu, Zhenxiao; Wu, Yelin; Bu, Wenbo
- 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.
- Subjects
NANOPARTICLES; T cells; IMMUNOTHERAPY; TUMOR microenvironment; TUMOR treatment; TUMORS; TYPE I interferons; CD25 antigen
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 45, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202210487