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Genetic engineering cellular vesicles expressing CD64 as checkpoint antibody carrier for cancer immunotherapy.

作者信息

Li Liyan, Miao Qianwei, Meng Fanqiang, Li Baoqi, Xue Tianyuan, Fang Tianliang, Zhang Zhirang, Zhang Jinxie, Ye Xinyu, Kang Yang, Zhang Xingding, Chen Qian, Liang Xin, Chen Hongbo, Zhang Xudong

机构信息

Department of Pharmacology, Molecular Cancer Research Center, School of Medicine, Sun Yat-Sen University, Guangzhou/Shenzhen, China.

School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China.

出版信息

Theranostics. 2021 Apr 7;11(12):6033-6043. doi: 10.7150/thno.48868. eCollection 2021.


DOI:10.7150/thno.48868
PMID:33897897
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8058713/
Abstract

Immune checkpoint blockade therapies, especially those targeting the programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) have achieved impressive clinical responses in multiple types of cancers. To optimize the therapeutic effect of the checkpoint antibodies, many strategies including targeting delivery, controlled release, and cellular synthesis have been developed. However, within these strategies, antibodies were attached to drug carriers by chemical bonding, which may affect the steric configuration and function of the antibodies. Herein, we prepared cluster of differentiation 64 (CD64), a natural catcher of the fragment crystalline (Fc) of monomeric immunoglobulin G (IgG), and over-expressed it on the cell membrane nanovesicles (NVs) as PD-L1 antibody delivery vehicle (CD64-NVs-aPD-L1), which was employed to disrupt the PD-1/PD-L1 immunosuppressive signal axis for boosting T cell dependent tumor elimination. Meanwhile, chemical immunomodulatory drug cyclophosphamide (CP) was also encapsulated in the vesicle (CD64-NVs-aPD-L1-CP), to simultaneously restrain the regulatory T cells (Tregs) and invigorate Ki67CD8 T cells, then further enhance their anti-tumor ability. : The cell membrane NVs overexpressing CD64 were incubated with PD-L1 antibody and chemotherapeutic agent CP to prepare CD64-NVs-aPD-L1-CP. The CD64-NVs-aPD-L1-CP could simultaneously interrupt the immunosuppressive effect of PD-L1 and decrease the inhibition of Tregs, leading to tumor growth suppression and survival time extension. Conclusion: CD64-NVs are charismatic carriers to achieve both checkpoint blockade and immunomodulatory drugs for combined cancer immunotherapy.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/5df2a8b6b42e/thnov11p6033g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/014cd46439f0/thnov11p6033g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/0ddfd4a6855e/thnov11p6033g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/06c6866e23c1/thnov11p6033g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/d8bfecfd2a2b/thnov11p6033g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/5df2a8b6b42e/thnov11p6033g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/014cd46439f0/thnov11p6033g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/0ddfd4a6855e/thnov11p6033g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/06c6866e23c1/thnov11p6033g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/d8bfecfd2a2b/thnov11p6033g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22ad/8058713/5df2a8b6b42e/thnov11p6033g005.jpg

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Genetic engineering cellular vesicles expressing CD64 as checkpoint antibody carrier for cancer immunotherapy.

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[2]
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[5]
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[6]
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[7]
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[8]
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Cell Biosci. 2022-12-29

[9]
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[10]
Recent Advances in Nanoparticles-Based Platforms Targeting the PD-1/PD-L1 Pathway for Cancer Treatment.

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本文引用的文献

[1]
Reducing PD-L1 expression with a self-assembled nanodrug: an alternative to PD-L1 antibody for enhanced chemo-immunotherapy.

Theranostics. 2021

[2]
From biomarkers to therapeutic targets: the promise of PD-L1 in thyroid autoimmunity and cancer.

Theranostics. 2021

[3]
Boiling histotripsy and in-situ CD40 stimulation improve the checkpoint blockade therapy of poorly immunogenic tumors.

Theranostics. 2021

[4]
CDK4/6 inhibition promotes immune infiltration in ovarian cancer and synergizes with PD-1 blockade in a B cell-dependent manner.

Theranostics. 2020

[5]
Cargo-encapsulated cells for drug delivery.

Sci China Life Sci. 2020-4

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Conjugation of haematopoietic stem cells and platelets decorated with anti-PD-1 antibodies augments anti-leukaemia efficacy.

Nat Biomed Eng. 2018-10-29

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Bioinspired and Biomimetic Nanomedicines.

Acc Chem Res. 2019-4-12

[8]
Vesicular Antibodies: A Bioactive Multifunctional Combination Platform for Targeted Therapeutic Delivery and Cancer Immunotherapy.

Adv Mater. 2019-3-7

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Regulatory T cells in cancer immunosuppression - implications for anticancer therapy.

Nat Rev Clin Oncol. 2019-6

[10]
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Rev Mal Respir. 2018-12

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