A Peritumorally Injected Immunomodulating Adjuvant Elicits Robust and Safe Metalloimmunotherapy against Solid Tumors

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 41 vom: 18. Okt., Seite e2206915
1. Verfasser: Zhang, Lingxiao (VerfasserIn)
Weitere Verfasser: Zhao, Jing, Hu, Xi, Wang, Chenhan, Jia, Yingbo, Zhu, Chaojie, Xie, Shangzhi, Lee, Jiyoung, Li, Fangyuan, Ling, Daishun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article immunogenic cell death layered double hydroxide nutritional metal ions tumor microenvironment vaccine adjuvants Adjuvants, Immunologic Cytokines Hydroxides Nucleotidyltransferases EC 2.7.7.-
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520 |a Clinical immunotherapy of solid tumors elicits durable responses only in a minority of patients, largely due to the highly immunosuppressive tumor microenvironment (TME). Although rational combinations of vaccine adjuvants with inflammatory cytokines or immune agonists that relieve immunosuppression represent an appealing therapeutic strategy against solid tumors, there are unavoidable nonspecific toxicities due to the pleiotropy of cytokines and undesired activation of off-target cells. Herein, a Zn2+ doped layered double hydroxide (Zn-LDH) based immunomodulating adjuvant, which not only relieves immunosuppression but also elicits robust antitumor immunity, is reported. Peritumorally injected Zn-LDH sustainably neutralizes acidic TME and releases abundant Zn2+ , promoting a pro-inflammatory network composed of M1-tumor-associated macrophages, cytotoxic T cells, and natural-killer cells. Moreover, the Zn-LDH internalized by tumor cells effectively disrupts endo-/lysosomes to block autophagy and induces mitochondrial damage, and the released Zn2+ activates the cGas-STING signaling pathway to induce immunogenic cell death, which further promotes the release of tumor-associated antigens to induce antigen-specific cytotoxic T lymphocytes. Unprecedentedly, merely injection of Zn-LDH adjuvant, without using any cytotoxic inflammatory cytokines or immune agonists, significantly inhibits the growth, recurrence, and metastasis of solid tumors in mice. This study provides a rational bottom-up design of potent adjuvant for cancer metalloimmunotherapy against solid tumors 
650 4 |a Journal Article 
650 4 |a immunogenic cell death 
650 4 |a layered double hydroxide 
650 4 |a nutritional metal ions 
650 4 |a tumor microenvironment 
650 4 |a vaccine adjuvants 
650 7 |a Adjuvants, Immunologic  |2 NLM 
650 7 |a Cytokines  |2 NLM 
650 7 |a Hydroxides  |2 NLM 
650 7 |a Nucleotidyltransferases  |2 NLM 
650 7 |a EC 2.7.7.-  |2 NLM 
700 1 |a Zhao, Jing  |e verfasserin  |4 aut 
700 1 |a Hu, Xi  |e verfasserin  |4 aut 
700 1 |a Wang, Chenhan  |e verfasserin  |4 aut 
700 1 |a Jia, Yingbo  |e verfasserin  |4 aut 
700 1 |a Zhu, Chaojie  |e verfasserin  |4 aut 
700 1 |a Xie, Shangzhi  |e verfasserin  |4 aut 
700 1 |a Lee, Jiyoung  |e verfasserin  |4 aut 
700 1 |a Li, Fangyuan  |e verfasserin  |4 aut 
700 1 |a Ling, Daishun  |e verfasserin  |4 aut 
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773 1 8 |g volume:34  |g year:2022  |g number:41  |g day:18  |g month:10  |g pages:e2206915 
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