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Huang S, Gao Y, Li H, Wang R, Zhang X, Wang X, Huang D, Zhang L, Santos HA, Yin Z, Xia B. Manganese@Albumin Nanocomplex and Its Assembled Nanowire Activate TLR4-Dependent Signaling Cascades of Macrophages. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310979. [PMID: 37994277 DOI: 10.1002/adma.202310979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/18/2023] [Indexed: 11/24/2023]
Abstract
The immunomodulatory effect of divalent manganese cations (Mn2+ ), such as activation of the cGAS-STING pathway or NLRP3 inflammasomes, positions them as adjuvants for cancer immunotherapy. In this study, it is found that trace Mn2+ ions, bound to bovine serum albumin (BSA) to form Mn@BSA nanocomplexes, stimulate pro-inflammatory responses in human- or murine-derived macrophages through TLR4-mediated signaling cascades. Building on this, the assembly of Mn@BSA nanocomplexes to obtain nanowire structures enables stronger and longer-lasting immunostimulation of macrophages by regulating phagocytosis. Furthermore, Mn@BSA nanocomplexes and their nanowires efficiently activate peritoneal macrophages, reprogramme tumor-associated macrophages, and inhibit the growth of melanoma tumors in vivo. They also show better biosafety for potential clinical applications compared to typical TLR4 agonists such as lipopolysaccharides. Accordingly, the findings provide insights into the mechanism of metalloalbumin complexes as potential TLR agonists that activate macrophage polarization and highlight the importance of their nanostructures in regulating macrophage-mediated innate immunity.
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Affiliation(s)
- Shuodan Huang
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Yan Gao
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Huiying Li
- Geriatric Department, Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, P. R. China
| | - Ruoran Wang
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaomei Zhang
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaoyu Wang
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Di Huang
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
| | - Linxuan Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P. R. China
| | - Hélder A Santos
- Department of Biomedical Engineering, University Medical Center Groningen/University of Groningen, Ant. Deusinglaan 1, Groningen, 9713 AV, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University Medical Center Groningen/University of Groningen, Ant. Deusinglaan 1, Groningen, 9713 AV, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Zhenyu Yin
- Geriatric Department, Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, P. R. China
| | - Bing Xia
- College of Science, State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing, 210037, China
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Mou Y, Liao W, Liang Y, Li Y, Zhao M, Guo Y, Sun Q, Tang J, Wang Z. Environmental pollutants induce NLRP3 inflammasome activation and pyroptosis: Roles and mechanisms in various diseases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165851. [PMID: 37516172 DOI: 10.1016/j.scitotenv.2023.165851] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Environmental pollution is changing with economic development. Most environmental pollutants are characterized by stable chemical properties, strong migration, potential toxicity, and multiple exposure routes. Harmful substances are discharged excessively, and large quantities of unknown new compounds are emerging, being transmitted and amplifying in the food chain. The increasingly severe problems of environmental pollution have forced people to re-examine the relationship between environmental pollution and health. Pyroptosis and activation of the NLRP3 inflammasome are critical in maintaining the immune balance and regulating the inflammatory process. Numerous diseases caused by environmental pollutants are closely related to NLRP3 inflammasome activation and pyroptosis. We intend to systematically explain the steps and important events that are common in life but easily overlooked by which environmental pollutants activate the NLRP3 inflammasome and pyroptosis pathways. This comprehensive review also discusses the interaction network between environmental pollutants, the NLRP3 inflammasome, pyroptosis, and diseases. Thus, research progress on the impact of decreasing oxidative stress levels to inhibit the NLRP3 inflammasome and pyroptosis, thereby repairing homeostasis and reshaping health, is systematically examined. This review aims to deepen the understanding of the impact of environmental pollutants on life and health and provide a theoretical basis and potential programs for the development of corresponding treatment strategies.
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Affiliation(s)
- Yu Mou
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Wenhao Liao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Yun Liang
- The Third People's Hospital of Chengdu, Chengdu 610014, China
| | - Yuchen Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Mei Zhao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yaoyao Guo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Qin Sun
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jianyuan Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.
| | - Zhilei Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.
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