Therapeutic strategies targeting uPAR potentiate anti-PD-1 efficacy in diffuse-type gastric cancer

The diffuse-type gastric cancer (DGC) is a subtype of gastric cancer (GC) associated with low HER2 positivity rate and insensitivity to chemotherapy and immune checkpoint inhibitors. Here, we identify urokinase-type plasminogen activator receptor (uPAR) as a potential therapeutic target for DGC. We...

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Veröffentlicht in:Science advances 2022-05, Vol.8 (21), p.eabn3774-eabn3774
Hauptverfasser: Qin, Long, Wang, Long, Zhang, Junchang, Zhou, Huinian, Yang, Zhiliang, Wang, Yan, Cai, Weiwen, Wen, Fei, Jiang, Xiangyan, Zhang, Tiansheng, Ye, Huili, Long, Bo, Qin, Junjie, Shi, Wengui, Guan, Xiaoying, Yu, Zeyuan, Yang, Jing, Wang, Qi, Jiao, Zuoyi
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container_end_page eabn3774
container_issue 21
container_start_page eabn3774
container_title Science advances
container_volume 8
creator Qin, Long
Wang, Long
Zhang, Junchang
Zhou, Huinian
Yang, Zhiliang
Wang, Yan
Cai, Weiwen
Wen, Fei
Jiang, Xiangyan
Zhang, Tiansheng
Ye, Huili
Long, Bo
Qin, Junjie
Shi, Wengui
Guan, Xiaoying
Yu, Zeyuan
Yang, Jing
Wang, Qi
Jiao, Zuoyi
description The diffuse-type gastric cancer (DGC) is a subtype of gastric cancer (GC) associated with low HER2 positivity rate and insensitivity to chemotherapy and immune checkpoint inhibitors. Here, we identify urokinase-type plasminogen activator receptor (uPAR) as a potential therapeutic target for DGC. We have developed a novel anti-uPAR monoclonal antibody, which targets the domains II and III of uPAR and blocks the binding of urokinase-type plasminogen activator to uPAR. We show that the combination of anti-uPAR and anti-Programmed cell death protein 1 (PD-1) remarkably inhibits tumor growth and prolongs survival via multiple mechanisms, using cell line-derived xenograft and patient-derived xenograft mouse models. Furthermore, uPAR chimeric antigen receptor-expressing T cells based on the novel anti-uPAR effectively kill DGC patient-derived organoids and exhibit impressive survival benefit in the established mouse models, especially when combined with PD-1 blockade therapy. Our study provides a new possibility of DGC treatment by targeting uPAR in a unique manner.
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Here, we identify urokinase-type plasminogen activator receptor (uPAR) as a potential therapeutic target for DGC. We have developed a novel anti-uPAR monoclonal antibody, which targets the domains II and III of uPAR and blocks the binding of urokinase-type plasminogen activator to uPAR. We show that the combination of anti-uPAR and anti-Programmed cell death protein 1 (PD-1) remarkably inhibits tumor growth and prolongs survival via multiple mechanisms, using cell line-derived xenograft and patient-derived xenograft mouse models. Furthermore, uPAR chimeric antigen receptor-expressing T cells based on the novel anti-uPAR effectively kill DGC patient-derived organoids and exhibit impressive survival benefit in the established mouse models, especially when combined with PD-1 blockade therapy. 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subjects Animals
Antineoplastic Agents, Immunological - immunology
Antineoplastic Agents, Immunological - pharmacology
Biomedicine and Life Sciences
Cancer
Humans
Mice
Programmed Cell Death 1 Receptor - antagonists & inhibitors
Programmed Cell Death 1 Receptor - immunology
Receptors, Urokinase Plasminogen Activator - antagonists & inhibitors
Receptors, Urokinase Plasminogen Activator - immunology
SciAdv r-articles
Signal Transduction
Stomach Neoplasms - drug therapy
Stomach Neoplasms - immunology
Stomach Neoplasms - metabolism
Stomach Neoplasms - pathology
Urokinase-Type Plasminogen Activator - metabolism
title Therapeutic strategies targeting uPAR potentiate anti-PD-1 efficacy in diffuse-type gastric cancer
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