Cited by 77Cancer Immunotherapy and BiomarkersNanoplatforms for cancer theranosticsNanoparticle-Based Drug Delivery

Engineering a Smart Agent for Enhanced Immunotherapy Effect by Simultaneously Blocking PD‐L1 and CTLA‐4

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Jiang, Chunjuan, Zhang, Le, Xu, Xiaoping, Qi, Ming, Zhang, Jianping, He, Simin, Tian, Qiwei, Song, Shaoli·2021·Advanced Science

Abstract

Combinations of immune checkpoint therapies show encouraging results in the treatment of many human cancers. However, the higher costs and greater side effects of such combinations compared with single‐agent immunotherapies limit their further applications. In this work, a novel smart agent, KN046@19 F‐ZIF‐8, is developed to overcome these limitations. KN046 is a novel recombinant humanized PD‐L1/CTLA‐4 bispecific single‐domain antibody‐Fc fusion protein, which can bind to both PD‐L1 and CTLA‐4 effectively. ZIF‐8 is a smart delivery system, which can safely and effectively deliver KN406 to a tumor. In vitro and in vivo results demonstrate that the smart agent KN046@19 F‐ZIF‐8 not only improves the immune response rate of the antibody drug in treatment of tumors but also reduces its toxic side effects, thereby achieving excellent antitumor efficacy. This study provides an engineering strategy for clinical applications of a more effective immunotherapy.

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  • Numerous bispecific antibodies have been developed, including CTLA-4 × PD-L1 (KN046), CTLA-4 × PD-1 (MGD019 and MEDI5752), LAG-3 × PD-L1 (IBI323), LAG-3 × PD-1 (Tebotelimab), TIM-3 × PD-L1 (LY3415244), TIM-3 × PD-1, and TIGIT×PD-L1.

    “Numerous bispecific antibodies have been developed, including CTLA-4 × PD-L1 (KN046) [281], CTLA-4 × PD-1 (MGD019 and MEDI5752) [282, 283], LAG-3 × PD-L1 (IBI323) [284], LAG-3 × PD-1 (Tebotelimab) [285], TIM-3 × PD-L1 (LY3415244) [286], TIM-3 × PD-1 [305], TIGIT×PD-L1 [287].”

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Cited by

Sorted by citations

Authors
Jiang, C., Zhang, L., Xu, X., Qi, M., Zhang, J., He, S., Tian, Q., & Song, S.
Affiliations
  • Shanghai Medical College of Fudan University (CN)
  • Shanghai University of Medicine and Health Sciences (CN)
Corresponding author
  • Tian, Qiwei
  • Song, Shaoli
Venue
Advanced Science
Publisher
Wiley
Published
2021-09-02
Volume
8
Issue
20
Pages
e2102500-e2102500
ISSN
2198-3844 (ISSN-L)
OpenAlex
W3197356409
Cited by
77
References
46
Citations by year
2026: 9 · 2025: 13 · 2024: 22 · 2023: 19 · 2022: 12 · 2021: 2
FWCI
5.00
Type
journal article
Language
en
Open access
Locations
  • Advanced Science (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (81771861, 81971648)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
ZIF-8, smart drug delivery, immune checkpoint blockade, cancer immunotherapy, tumor targeting, reduced side effects
MeSH terms
Immune Checkpoint Inhibitors, Animals, Antineoplastic Agents, Humans, Immunotherapy, Neoplasms, Recombinant Fusion Proteins, Antibodies, Bispecific, Xenograft Model Antitumor Assays, Cell Line, Tumor, Cell Proliferation, Mice, B7-H1 Antigen, CTLA-4 Antigen, Single-Domain Antibodies

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