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Affiliation(s)
- Zhiyu Dai
- Division of Pulmonary, Critical Care and Sleep, Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, Arizona, USA
- Translational Cardiovascular Research Center, College of Medicine-Phoenix, University of Arizona, Phoenix, Arizona, USA
- BIO5 Institute, University of Arizona, Tucson, Arizona, USA
- Sarver Heart Center, University of Arizona, Tucson, Arizona, USA
| | - Edward Benjamin Thorp
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, USA
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Yvan-Charvet L, Thorp EB. Inflamed macrophages sans mitochondrial pyruvate carrier? Nat Metab 2023; 5:724-726. [PMID: 37188820 PMCID: PMC10410471 DOI: 10.1038/s42255-023-00789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Glycolysis provides building blocks for the proinflammatory activation of macrophages and simultaneously generates pyruvate. In this issue of Nature Metabolism , Ran et al. provide evidence that the transport of pyruvate to fuel the Krebs cycle in the mitochondria is not required in the inflammatory response.
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Affiliation(s)
- Laurent Yvan-Charvet
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Atip-Avenir, Fédération Hospitalo-Universitaire (FHU) Oncoage, Nice, France.
| | - Edward Benjamin Thorp
- Department of Pathology, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.
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Yi S, Allen SD, Liu YG, Ouyang BZ, Li X, Augsornworawat P, Thorp EB, Scott EA. Tailoring Nanostructure Morphology for Enhanced Targeting of Dendritic Cells in Atherosclerosis. ACS Nano 2016; 10:11290-11303. [PMID: 27935698 PMCID: PMC5418862 DOI: 10.1021/acsnano.6b06451] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Atherosclerosis, a leading cause of heart disease, results from chronic vascular inflammation that is driven by diverse immune cell populations. Nanomaterials may function as powerful platforms for diagnostic imaging and controlled delivery of therapeutics to inflammatory cells in atherosclerosis, but efficacy is limited by nonspecific uptake by cells of the mononuclear phagocytes system (MPS). MPS cells located in the liver, spleen, blood, lymph nodes, and kidney remove from circulation the vast majority of intravenously administered nanomaterials regardless of surface functionalization or conjugation of targeting ligands. Here, we report that nanostructure morphology alone can be engineered for selective uptake by dendritic cells (DCs), which are critical mediators of atherosclerotic inflammation. Employing near-infrared fluorescence imaging and flow cytometry as a multimodal approach, we compared organ and cellular level biodistributions of micelles, vesicles (i.e., polymersomes), and filomicelles, all assembled from poly(ethylene glycol)-bl-poly(propylene sulfide) (PEG-bl-PPS) block copolymers with identical surface chemistries. While micelles and filomicelles were respectively found to associate with liver macrophages and blood-resident phagocytes, polymersomes were exceptionally efficient at targeting splenic DCs (up to 85% of plasmacytoid DCs) and demonstrated significantly lower uptake by other cells of the MPS. In a mouse model of atherosclerosis, polymersomes demonstrated superior specificity for DCs (p < 0.005) in atherosclerotic lesions. Furthermore, significant differences in polymersome cellular biodistributions were observed in atherosclerotic compared to naïve mice, including impaired targeting of phagocytes in lymph nodes. These results present avenues for immunotherapies in cardiovascular disease and demonstrate that nanostructure morphology can be tailored to enhance targeting specificity.
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Affiliation(s)
- Sijia Yi
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Sean David Allen
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Yu-Gang Liu
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Brian Zhou Ouyang
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Xiaomo Li
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Punn Augsornworawat
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Edward Benjamin Thorp
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
| | - Evan Alexander Scott
- Department of Biomedical Engineering, ‡Chemistry of Life Processes Institute, §Interdisciplinary Biological Sciences Program, and ∥Master of Biotechnology Program, Northwestern University , Evanston, Illinois 60208, United States
- Department of Pathology and #Simpson Querrey Institute, Northwestern University Feinberg School of Medicine , Chicago, Illinois 60611, United States
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