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Chen K, Gu L, Zhang Q, Luo Q, Guo S, Wang B, Gong Q, Luo K. Injectable alginate hydrogel promotes antitumor immunity through glucose oxidase and Fe 3+ amplified RSL3-induced ferroptosis. Carbohydr Polym 2024; 326:121643. [PMID: 38142082 DOI: 10.1016/j.carbpol.2023.121643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/13/2023] [Accepted: 11/24/2023] [Indexed: 12/25/2023]
Abstract
Ferroptosis induced by RAS-selective lethal small molecule 3 (RSL3) can trigger anti-tumor immune responses by reversing the immunosuppressive tumor microenvironment (TME). However, it is challenging to achieve sufficient ferroptosis in the tumor via RSL3 alone. Because of the excellent reactive oxygen species (ROS) production capacity of glucose oxidase (GOx) and Fe3+, we hypothesized that GOx and Fe3+ could increase intracellular lipid peroxidation (LPO) accumulation, and strengthen RSL3-induced ferroptosis in tumor cells. Herein we designed an in-situ gelation strategy based on sodium alginate (SA) to realize localized transport and specific retention of GOx, RSL3, and Fe3+ in tumor tissues. We loaded hydrophobic RSL3 with the tannic acid (TA)/Fe3+ complexes to form nanoparticles (RTF NPs). GOx diluted in the SA solution was blended with RTF NPs to obtain a homogeneous solution. The solution could form hydrogels in the tumor site (RTFG@SA) upon injection. The retained GOx and Fe3+ amplified the induction of ferroptosis by RSL3, augmented immunogenic cell death (ICD) and promoted antitumor immunity. The RTFG@SA hydrogel presented a significant restraint of tumor growth and metastasis in the 4T1 tumor model. This hydrogel could offer an effective means of co-delivery of hydrophilic drugs, hydrophobic drugs, and metal ions.
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Affiliation(s)
- Kai Chen
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lei Gu
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qianfeng Zhang
- School of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan Province 621000, China
| | - Qiang Luo
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shiwei Guo
- Department of Pharmacy of the Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Bing Wang
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen 361021, China
| | - Kui Luo
- Department of Radiology, Department of Biotherapy, Huaxi MR Research Center (HMRRC), West China Biopharmaceutical Research Institute, Laboratory of Stem Cell Biology, Cancer Center, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Functional and Molecular Imaging Key Laboratory of Sichuan Province, Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China.
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