Volume 19, Issue 44 2301439
Research Article

A Trojan-Horse-Like Biomimetic Nano-NK to Elicit an Immunostimulatory Tumor Microenvironment for Enhanced GBM Chemo-Immunotherapy

Long Zhang

Long Zhang

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Yining Zhang

Yining Zhang

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Xu Wang

Xu Wang

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Yi Zhou

Yi Zhou

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Ji Qi

Ji Qi

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Linbo Gu

Linbo Gu

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu, 221004 China

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Qiu Zhao

Qiu Zhao

Department of Anesthesiology, The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Hefei, Anhui, 230001 China

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Rutong Yu

Corresponding Author

Rutong Yu

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

E-mail: [email protected]; [email protected]

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Xiuping Zhou

Corresponding Author

Xiuping Zhou

Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou, Jiangsu, 221002 China

Department of Neurosurgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 2210002 China

E-mail: [email protected]; [email protected]

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First published: 07 July 2023
Citations: 18

Abstract

Although the chemo- and immuno-therapies have obtained good responses for several solid tumors, including those with brain metastasis, their clinical efficacy in glioblastoma (GBM) is disappointing. The lack of safe and effective delivery systems across the blood-brain barrier (BBB) and the immunosuppressive tumor microenvironment (TME) are two main hurdles for GBM therapy. Herein, a Trojan-horse-like nanoparticle system is designed, which encapsulates biocompatible PLGA-coated temozolomide (TMZ) and IL-15 nanoparticles (NPs) with cRGD-decorated NK cell membrane (R-NKm@NP), to elicit the immunostimulatory TME for GBM chemo-immunotherapy. Taking advantage of the outer NK cell membrane cooperating with cRGD, the R-NKm@NPs effectively traversed across the BBB and targeted GBM. In addition, the R-NKm@NPs exhibited good antitumor ability and prolonged the median survival of GBM-bearing mice. Notably, after R-NKm@NPs treatment, the locally released TMZ and IL-15 synergistically stimulated the proliferation and activation of NK cells, leading to the maturation of dendritic cells and infiltration of CD8+ cytotoxic T cells, eliciting an immunostimulatory TME. Lastly, the R-NKm@NPs not only effectively prolonged the metabolic cycling time of the drugs in vivo, but also has no noticeable side effects. This study may offer valuable insights for developing biomimetic nanoparticles to potentiate GBM chemo- and immuno-therapies in the future.

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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