A novel dual mechanism-of-action bispecific PD-1-IL-2v armed by a "βγ-only" interleukin-2 variant
Copyright © 2024 Jiang, Chen, Liu, Wang, Feng, Cai, Chang and Zhao..
Introduction: Interleukin-2 (IL-2) is one of the first cytokines to be discovered as an immune agonist for cancer immunotherapy. Biased IL-2 variants had been discovered to eliminate Treg activation or enhance the tumor specific T cell cytotoxicity. However, all the biased IL-2 variants pose the risk to overstimulate immune response at a low-dose range. Here, we introduce a novel dual-MOA bispecific PD-1-IL-2v molecule with great anti-tumor efficacy in a high dosed manner.
Methods: The novel IL-2 variant was designed by structural truncation and shuffling. The single armed bispecific PD-1-IL-2v molecule and IL-2v were studied by immune cell activations in vitro and in vivo and anti-tumor efficacy in mouse model.
Results and discussion: The IL-2 variant in this bispecific antibody only binds to IL-2Rβγ complex in a fast-on/off manner without α, β or γ single receptor binding. This IL-2v mildly activates T and NK cells without over stimulation, meanwhile it diminishes Treg activation compared to the wild type IL-2. This unique bispecific molecule with "βγ-only" IL-2v can not only "in-cis" stimulate and expand CD8 T and NK cells moderately without Treg activation, but also block the PD-1/L1 interaction at a similar dose range with monoclonal antibody.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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Enthalten in: |
Frontiers in immunology - 15(2024) vom: 28., Seite 1369376 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Jiang, Yongji [VerfasserIn] |
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Links: |
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Themen: |
Bispecific antibody |
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Anmerkungen: |
Date Completed 22.04.2024 Date Revised 25.04.2024 published: Electronic-eCollection Citation Status MEDLINE |
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doi: |
10.3389/fimmu.2024.1369376 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM37127401X |
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245 | 1 | 2 | |a A novel dual mechanism-of-action bispecific PD-1-IL-2v armed by a "βγ-only" interleukin-2 variant |
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520 | |a Copyright © 2024 Jiang, Chen, Liu, Wang, Feng, Cai, Chang and Zhao. | ||
520 | |a Introduction: Interleukin-2 (IL-2) is one of the first cytokines to be discovered as an immune agonist for cancer immunotherapy. Biased IL-2 variants had been discovered to eliminate Treg activation or enhance the tumor specific T cell cytotoxicity. However, all the biased IL-2 variants pose the risk to overstimulate immune response at a low-dose range. Here, we introduce a novel dual-MOA bispecific PD-1-IL-2v molecule with great anti-tumor efficacy in a high dosed manner | ||
520 | |a Methods: The novel IL-2 variant was designed by structural truncation and shuffling. The single armed bispecific PD-1-IL-2v molecule and IL-2v were studied by immune cell activations in vitro and in vivo and anti-tumor efficacy in mouse model | ||
520 | |a Results and discussion: The IL-2 variant in this bispecific antibody only binds to IL-2Rβγ complex in a fast-on/off manner without α, β or γ single receptor binding. This IL-2v mildly activates T and NK cells without over stimulation, meanwhile it diminishes Treg activation compared to the wild type IL-2. This unique bispecific molecule with "βγ-only" IL-2v can not only "in-cis" stimulate and expand CD8 T and NK cells moderately without Treg activation, but also block the PD-1/L1 interaction at a similar dose range with monoclonal antibody | ||
650 | 4 | |a Journal Article | |
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650 | 4 | |a T cell activation | |
650 | 4 | |a bispecific antibody | |
650 | 4 | |a cancer immune therapy | |
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700 | 1 | |a Chen, Chuyuan |e verfasserin |4 aut | |
700 | 1 | |a Liu, Yuan |e verfasserin |4 aut | |
700 | 1 | |a Wang, Rong |e verfasserin |4 aut | |
700 | 1 | |a Feng, Chuan |e verfasserin |4 aut | |
700 | 1 | |a Cai, Lili |e verfasserin |4 aut | |
700 | 1 | |a Chang, Shuang |e verfasserin |4 aut | |
700 | 1 | |a Zhao, Lei |e verfasserin |4 aut | |
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