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Yuan X, Wang X. An In Situ Chemotherapy Drug Combined with Immune Checkpoint Inhibitor for Chemoimmunotherapy. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3144. [PMID: 38133040 PMCID: PMC10746032 DOI: 10.3390/nano13243144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
Clinically, cancer chemotherapy still faces unsatisfactory efficacy due to drug resistance and severe side effects, including tiredness, hair loss, feeling sick, etc. The clinical benefits of checkpoint inhibitors have revived hope for cancer immunotherapy, but the objective response rate of immune checkpoint inhibitors remains around 10-40%. Herein, two types of copper-doped mesoporous silica nanoparticles (MS-Cu-1 with a diameter of about 30 nm and MS-Cu-2 with a diameter of about 200 nm) were synthesized using a one-pot method. Both MS-Cu-1 and MS-Cu-2 nanoparticles showed excellent tumor microenvironment regulation properties with elevated extracellular and intracellular ROS generation, extracellular and intracellular oxygenation, and intracellular GSH depletion. In particular, MS-Cu-2 nanoparticles demonstrated a better microenvironment modulation effect than MS-Cu-1 nanoparticles. The DSF/MS-Cu composites with disulfiram (DSF) and copper co-delivery characteristics were prepared by a straightforward method using chloroform as the solvent. Cell survival rate and live/dead staining results showed that DSF and MS-Cu alone were not toxic to LLC cells, while a low dose of DSF/MS-Cu (1-10 μg/mL) showed a strong cell-killing effect. In addition, MS-Cu-2 nanoparticles released more Cu2+ in a weakly acidic environment (pH = 5) than in a physiological environment (pH = 7.4), and the Cu2+ released was 41.72 ± 0.96 mg/L in 1 h under weakly acidic conditions. UV-visible absorption spectrometry confirmed the production of tumor-killing drugs (CuETs). The intratumoral injection of DSF/MS-Cu significantly inhibited tumor growth in vivo by converting nontoxic DSF/MS-Cu into toxic CuETs. The combination of DSF/MS-Cu and anti-CTLA-4 antibody further inhibited tumor growth, showing the synergistic effect of DSF/MS-Cu and immune checkpoint inhibitors.
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Affiliation(s)
- Xinyuan Yuan
- School of Materials Science and Engineering and Key Laboratory of Biomedical Materials of Ministry of Education, South China University of Technology, and National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510641, China
| | - Xiupeng Wang
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba 305-8566, Japan
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Yang R, Chen L, Wang Y, Zhang L, Zheng X, Yang Y, Zhu Y. Tumor microenvironment responsive metal nanoparticles in cancer immunotherapy. Front Immunol 2023; 14:1237361. [PMID: 37575228 PMCID: PMC10413122 DOI: 10.3389/fimmu.2023.1237361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Malignant tumors have a unique tumor microenvironment (TME), which includes mild acidity, hypoxia, overexpressed reactive oxygen species (ROS), and high glutathione (GSH) levels, among others. Recently, TME regulation approaches have attracted widespread attention in cancer immunotherapy. Nanoparticles as drug delivery systems have ability to modulate the hydrophilicity of drugs to affect drug uptake and efflux in tumor. Especially, the metal nanoparticles have been extensive applied for tumor immunotherapy due to their unique physical properties and elaborate design. However, the potential deficiencies of metal nanoparticles due to their low biodegradability, toxicity and treatment side effects restrict their clinical application. In this review, we briefly introduce the feature characteristics of the TME and the recent advances in tumor microenvironment responsive metal nanoparticles for tumor immunotherapy. In addition, nanoparticles could be combined with other treatments, such as chemotherapy, radiotherapy and photodynamic therapy also is presented. Finally, the challenges and outlook for improving the antitumor immunotherapy efficiency, side effect and potential risks of metal nanoparticles has been discussed.
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Affiliation(s)
| | | | | | | | | | - Yong Yang
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuxuan Zhu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Wu Q, Ma Q, Ma J, Chen J, Zhuang B, Yang S, Liu J, Wen S. Cascade Amplification of Pyroptosis and Apoptosis for Cancer Therapy through a Black Phosphorous-Doped Thermosensitive Hydrogel. Pharmaceutics 2023; 15:1830. [PMID: 37514017 PMCID: PMC10383820 DOI: 10.3390/pharmaceutics15071830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Cell pyroptosis has a reciprocal relationship with various cancer treatment modalities such as chemotherapy. However, the tumor microenvironment, characterized by hypoxia, substantially restricts the development and application of tumor therapies that integrate cell pyroptosis. Therefore, the cascade amplification of oxidative stress by interfering with redox homeostasis in tumors may be a promising approach. In this study, black phosphorus (BP) nanosheets and a glutathione peroxidase 4 inhibitor (RSL3) were coloaded into a thermosensitive PDLLA-PEG-PDLLA (PLEL) hydrogel (RSL3/BP@PLEL). Owing to the photothermal property of BP nanosheets, the RSL3/BP@PLEL hydrogel may trigger the release of loaded drugs in a more controllable and on-demand manner. Investigation of the antitumor effect in a mouse liver tumor model demonstrated that local injection of the hydrogel formulation in combination with near infrared laser irradiation could efficiently suppress tumor growth by interfering with the redox balance in tumors. Mechanistic study indicated that the combined treatment of photothermal therapy and glutathione depletion based on this hydrogel efficiently induced cell pyroptosis through both caspase-1/GSDMD and caspase-3/GSDME pathways, thereby triggering the repolarization of tumor-associated macrophages from M2 to M1. Overall, we developed a biocompatible and biodegradable hydrogel formulation for application in combination cancer treatment, providing a new platform for enhancing the efficacy of cancer therapy by amplifying cell pyroptosis and apoptosis.
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Affiliation(s)
- Qing Wu
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Qinghui Ma
- Department of Oncology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Jun Ma
- Department of Gastroenterology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Junpeng Chen
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Baoding Zhuang
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Shanglin Yang
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Jinji Liu
- Department of Oncology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Shunqian Wen
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
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Ou X, Zhang Z, Lin L, Du Y, Tang Y, Wang Y, Zou J. Tumor-homing bacterium-adsorbed liposomes encapsulating perfluorohexane/doxorubicin enhance pulsed-focused ultrasound for tumor therapy. RSC Adv 2023; 13:19065-19078. [PMID: 37362333 PMCID: PMC10288177 DOI: 10.1039/d3ra01876h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Objective: To make up for the insufficient ultrasound ablation of tumors, the energy output or synergist is increased but faces the big challenge of normal tissue damage. In this study, we report a tumor-homing bacterium, Bifidobacterium bifidum (B. bifidum), adsorbing liposomes that encapsulate perfluorohexane (PFH) and doxorubicin (DOX) to enhance the pulsed-focused ultrasound (PFUS) for tumor therapy, so as to improve the efficacy, safety and controllability of ultrasound treatment. Methods: The PFH and DOX co-loaded cationic liposomal nanoparticles (CL-PFH-DOX-NPs) were prepared for ultrasound (US) imaging, cell-killing, and B. bifidum adsorption for the reactive oxygen species (ROS) testing. The aggregation of B. bifidum and CL-PFH-DOX-NPs is called tumor-homing aggregation (B. bifidum@CL-PFH-DOX-NPs) in this study, and the synergistic effects of B. bifidum@CL-PFH-DOX-NPs were analyzed in vivo. Results: Comprehensive studies validated that CL-PFH-DOX-NPs can enhance US imaging and cell-killing and B. bifidum can promote ROS, and B. bifidum@CL-PFH-DOX-NPs achieve PFUS synergism in vivo. Importantly, active homing of B. bifidum facilitated the delivery and retention of CL-PFH-DOX-NPs in tumors, reducing dispersion in normal tissues, achieving the targeting ability of B. bifidum@CL-PFH-DOX-NPs. The best sonication time was chosen according to the distribution of CL-PFH-DOX-NPs in vivo to achieve efficient therapy. Especially, B. bifidum@CL-PFH-DOX-NPs amplified cavitation and the immune-boosting effects. Conclusion: Multifunctional B. bifidum@CL-PFH-DOX-NPs were successfully constructed with well targeting, which not only realized US imaging monitoring, strong cavitation and complementary killing during PFUS, but also achieved immunity enhancement after PFUS. The combination of PFUS, B. bifidum and CL-PFH-DOX-NPs provides a new idea for the potential application of ultrasound therapy in solid tumors.
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Affiliation(s)
- Xia Ou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Zhong Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Li Lin
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yan Du
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yu Tang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Yaotai Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
| | - Jianzhong Zou
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 People's Republic of China +86-13708302390
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Bahreyni A, Liu H, Mohamud Y, Xue YC, Fan YM, Zhang YL, Luo H. A combination of genetically engineered oncolytic virus and melittin-CpG for cancer viro-chemo-immunotherapy. BMC Med 2023; 21:193. [PMID: 37226233 DOI: 10.1186/s12916-023-02901-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/12/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Immunotherapy has emerged as an efficient therapeutic approach for cancer management. However, stimulation of host immune system against cancer cells often fails to achieve promising clinical outcomes mainly owing to the immunosuppressive characteristics of the tumor microenvironment (TME). Combination therapeutics that can trigger sustained immunogenic cell death (ICD) have provided new opportunities for cancer treatment. METHODS In this study, we designed and applied an ICD inducer regimen, including a genetically engineered oncolytic virus (miRNA-modified coxsackieviruses B3, miR-CVB3), a pore-forming lytic peptide (melittin, found in bee venom), and a synthetic toll-like receptor 9 ligand (CpG oligodeoxynucleotides), for breast cancer and melanoma treatment. We compared the anti-tumor efficacy of miR-CVB3 and CpG-melittin (CpGMel) alone and in combination (miR-CVB3 + CpGMel) and investigated possible mechanisms involved. RESULTS We demonstrated that miR-CVB3 + CpGMel had no major impact on viral growth, while enhancing the cellular uptake of CpGMel in vitro. We further showed that combination therapy led to significant increases in tumor cell death and release of damage-associated molecular patterns compared with individual treatment. In vivo studies in 4T1 tumor-bearing Balb/c mice revealed that both primary and distant tumors were significantly suppressed, and the survival rate was significantly prolonged after administration of miR-CVB3 + CpGMel compared with single treatment. This anti-tumor effect was accompanied by increased ICD and immune cell infiltration into the TME. Safety analysis showed no significant pathological abnormalities in Balb/c mice. Furthermore, the developed therapeutic regimen also demonstrated a great anti-tumor activity in B16F10 melanoma tumor-bearing C57BL/6 J mice. CONCLUSIONS Overall, our findings indicate that although single treatment using miR-CVB3 or CpGMel can efficiently delay tumor growth, combining oncolytic virus-based therapy can generate even stronger anti-tumor immunity, leading to a greater reduction in tumor size.
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Affiliation(s)
- Amirhossein Bahreyni
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Huitao Liu
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Experimental Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yasir Mohamud
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yuan Chao Xue
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yiyun Michelle Fan
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Cellular and Physiological Sciences, University of British Columbia, Endowment Lands, Canada
| | - Yizhuo Lyanne Zhang
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Cellular and Physiological Sciences, University of British Columbia, Endowment Lands, Canada
| | - Honglin Luo
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada.
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada.
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Shi H, Chen L, Liu Y, Wen Q, Lin S, Wen Q, Lu Y, Dai J, Li J, Xiao S, Fu S. Bacteria-Driven Tumor Microenvironment-Sensitive Nanoparticles Targeting Hypoxic Regions Enhances the Chemotherapy Outcome of Lung Cancer. Int J Nanomedicine 2023; 18:1299-1315. [PMID: 36945255 PMCID: PMC10024911 DOI: 10.2147/ijn.s396863] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/29/2023] [Indexed: 03/17/2023] Open
Abstract
Background Chemotherapy still plays a dominant role in cancer treatment. However, the inability of conventional chemotherapeutic drugs to reach the hypoxic zone of solid tumors significantly weakens their efficacy. Bacteria-mediated drug delivery systems can be an effective targeting strategy for improving the therapeutic outcomes in cancer. Anaerobic bacteria have the unique ability to selectively transport drug loads to the hypoxic regions of tumors. Methods We designed a Bifidobacterium infantis (Bif)-based biohybrid (Bif@PDA-PTX-NPs) to deliver polydopamine (PDA)-coated paclitaxel nanoparticles (PTX-NPs) to tumor tissues. Results The self-driven Bif@PDA-PTX-NPs maintained the toxicity of PTX as well as the hypoxic homing tendency of Bif. Furthermore, Bif@PDA-PTX-NPs significantly inhibited the growth of A549 xenografts in nude mice, and prolonged the survival of the tumor-bearing mice compared to the other PTX formulations without any systemic or localized toxicity. Conclusion The Bif@PDA-PTX-NPs biohybrids provide a new therapeutic strategy for targeted chemotherapy to solid tumors.
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Affiliation(s)
- Huan Shi
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Lan Chen
- Department of Oncology, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Yanlin Liu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Qinglian Wen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Sheng Lin
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Qian Wen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Yun Lu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Jie Dai
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Jianmei Li
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Susu Xiao
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Shaozhi Fu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Correspondence: Shaozhi Fu, Tel +86 830-3165698, Fax +86 830-3165690, Email
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