1
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Amo-Aparicio J, Dinarello CA, Lopez-Vales R. Metabolic reprogramming of the inflammatory response in the nervous system: the crossover between inflammation and metabolism. Neural Regen Res 2024; 19:2189-2201. [PMID: 38488552 PMCID: PMC11034585 DOI: 10.4103/1673-5374.391330] [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: 08/24/2023] [Revised: 10/25/2023] [Accepted: 11/13/2023] [Indexed: 04/24/2024] Open
Abstract
Metabolism is a fundamental process by which biochemicals are broken down to produce energy (catabolism) or used to build macromolecules (anabolism). Metabolism has received renewed attention as a mechanism that generates molecules that modulate multiple cellular responses. This was first identified in cancer cells as the Warburg effect, but it is also present in immunocompetent cells. Studies have revealed a bidirectional influence of cellular metabolism and immune cell function, highlighting the significance of metabolic reprogramming in immune cell activation and effector functions. Metabolic processes such as glycolysis, oxidative phosphorylation, and fatty acid oxidation have been shown to undergo dynamic changes during immune cell response, facilitating the energetic and biosynthetic demands. This review aims to provide a better understanding of the metabolic reprogramming that occurs in different immune cells upon activation, with a special focus on central nervous system disorders. Understanding the metabolic changes of the immune response not only provides insights into the fundamental mechanisms that regulate immune cell function but also opens new approaches for therapeutic strategies aimed at manipulating the immune system.
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Affiliation(s)
| | | | - Ruben Lopez-Vales
- Institute of Neurosciences, and Department Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Spain
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2
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Ball AB, Jones AE, Nguyễn KB, Rios A, Marx N, Hsieh WY, Yang K, Desousa BR, Kim KK, Veliova M, del Mundo ZM, Shirihai OS, Benincá C, Stiles L, Bensinger SJ, Divakaruni AS. Pro-inflammatory macrophage activation does not require inhibition of mitochondrial respiration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.10.593451. [PMID: 38798678 PMCID: PMC11118427 DOI: 10.1101/2024.05.10.593451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Pro-inflammatory macrophage activation is a hallmark example of how mitochondria serve as signaling organelles. Upon classical macrophage activation, oxidative phosphorylation sharply decreases and mitochondria are repurposed to accumulate signals that amplify effector function. However, evidence is conflicting as to whether this collapse in respiration is essential or largely dispensable. Here we systematically examine this question and show that reduced oxidative phosphorylation is not required for pro-inflammatory macrophage activation. Only stimuli that engage both MyD88- and TRIF-linked pathways decrease mitochondrial respiration, and different pro-inflammatory stimuli have varying effects on other bioenergetic parameters. Additionally, pharmacologic and genetic models of electron transport chain inhibition show no direct link between respiration and pro-inflammatory activation. Studies in mouse and human macrophages also reveal accumulation of the signaling metabolites succinate and itaconate can occur independently of characteristic breaks in the TCA cycle. Finally, in vivo activation of peritoneal macrophages further demonstrates that a pro-inflammatory response can be elicited without reductions to oxidative phosphorylation. Taken together, the results suggest the conventional model of mitochondrial reprogramming upon macrophage activation is incomplete.
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Affiliation(s)
- Andréa B. Ball
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Anthony E. Jones
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kaitlyn B. Nguyễn
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Amy Rios
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Nico Marx
- Institute of Integrative Cell Biology and Physiology, Bioenergetics and Mitochondrial Dynamics Section, University of Münster, Schloßplatz 5, D-49078 Münster, Germany
| | - Wei Yuan Hsieh
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Krista Yang
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Brandon R. Desousa
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kristen K.O. Kim
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michaela Veliova
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Zena Marie del Mundo
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Orian S. Shirihai
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Cristiane Benincá
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Linsey Stiles
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Steven J. Bensinger
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ajit S. Divakaruni
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA
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3
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Jones AE, Rios A, Ibrahimovic N, Chavez C, Bayley NA, Ball AB, Hsieh WY, Sammarco A, Bianchi AR, Cortez AA, Graeber TG, Hoffmann A, Bensinger SJ, Divakaruni AS. The metabolic cofactor Coenzyme A enhances alternative macrophage activation via MyD88-linked signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.28.587096. [PMID: 38585887 PMCID: PMC10996702 DOI: 10.1101/2024.03.28.587096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Metabolites and metabolic co-factors can shape the innate immune response, though the pathways by which these molecules adjust inflammation remain incompletely understood. Here we show that the metabolic cofactor Coenzyme A (CoA) enhances IL-4 driven alternative macrophage activation [m(IL-4)] in vitro and in vivo. Unexpectedly, we found that perturbations in intracellular CoA metabolism did not influence m(IL-4) differentiation. Rather, we discovered that exogenous CoA provides a weak TLR4 signal which primes macrophages for increased receptivity to IL-4 signals and resolution of inflammation via MyD88. Mechanistic studies revealed MyD88-linked signals prime for IL-4 responsiveness, in part, by reshaping chromatin accessibility to enhance transcription of IL-4-linked genes. The results identify CoA as a host metabolic co-factor that influences macrophage function through an extrinsic TLR4-dependent mechanism, and suggests that damage-associated molecular patterns (DAMPs) can prime macrophages for alternative activation and resolution of inflammation.
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Affiliation(s)
- Anthony E Jones
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy Rios
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Neira Ibrahimovic
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Carolina Chavez
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nicholas A Bayley
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andréa B Ball
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Wei Yuan Hsieh
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alessandro Sammarco
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amber R Bianchi
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Angel A Cortez
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Thomas G Graeber
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alexander Hoffmann
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Steven J Bensinger
- Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ajit S Divakaruni
- Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Lead contact
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4
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Matrella ML, Valletti A, Gigante I, De Rasmo D, Signorile A, Russo S, Lobasso S, Lobraico D, Dibattista M, Pacelli C, Cocco T. High OXPHOS efficiency in RA-FUdr-differentiated SH-SY5Y cells: involvement of cAMP signalling and respiratory supercomplexes. Sci Rep 2024; 14:7411. [PMID: 38548913 PMCID: PMC10978939 DOI: 10.1038/s41598-024-57613-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
Neurons are highly dependent on mitochondria to meet their bioenergetic needs and understanding the metabolic changes during the differentiation process is crucial in the neurodegeneration context. Several in vitro approaches have been developed to study neuronal differentiation and bioenergetic changes. The human SH-SY5Y cell line is a widely used cellular model and several differentiation protocols have been developed to induce a neuron-like phenotype including retinoic acid (RA) treatment. In this work we obtained a homogeneous functional population of neuron-like cells by a two-step differentiation protocol in which SH-SY5Y cells were treated with RA plus the mitotic inhibitor 2-deoxy-5-fluorouridine (FUdr). RA-FUdr treatment induced a neuronal phenotype characterized by increased expression of neuronal markers and electrical properties specific to excitable cells. In addition, the RA-FUdr differentiated cells showed an enrichment of long chain and unsaturated fatty acids (FA) in the acyl chain composition of cardiolipin (CL) and the bioenergetic analysis evidences a high coupled and maximal respiration associated with high mitochondrial ATP levels. Our results suggest that the observed high oxidative phosphorylation (OXPHOS) capacity may be related to the activation of the cyclic adenosine monophosphate (cAMP) pathway and the assembly of respiratory supercomplexes (SCs), highlighting the change in mitochondrial phenotype during neuronal differentiation.
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Affiliation(s)
- Maria Laura Matrella
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Alessio Valletti
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
- MASMEC Biomed S.p.A, 70026, Modugno, Italy
| | - Isabella Gigante
- National Institute of Gastroenterology- IRCCS "Saverio De Bellis", Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Domenico De Rasmo
- Bioenergetics and Molecular Biotechnologies, CNR-Institute of Biomembranes, 70124, Bari, Italy
| | - Anna Signorile
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Silvia Russo
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Simona Lobasso
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Donatella Lobraico
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Michele Dibattista
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy.
| | - Tiziana Cocco
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy.
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5
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Levitt DE, Bourgeois BL, Rodríguez-Graciani KM, Molina PE, Simon L. Alcohol Impairs Bioenergetics and Differentiation Capacity of Myoblasts from Simian Immunodeficiency Virus-Infected Female Macaques. Int J Mol Sci 2024; 25:2448. [PMID: 38397125 PMCID: PMC10888832 DOI: 10.3390/ijms25042448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Alcohol misuse and HIV independently induce myopathy. We previously showed that chronic binge alcohol (CBA) administration, with or without simian immunodeficiency virus (SIV), decreases differentiation capacity of male rhesus macaque myoblasts. We hypothesized that short-term alcohol and CBA/SIV would synergistically decrease differentiation capacity and impair bioenergetic parameters in female macaque myoblasts. Myoblasts from naïve (CBA-/SIV-), vehicle [VEH]/SIV, and CBA/SIV (N = 4-6/group) groups were proliferated (3 days) and differentiated (5 days) with 0 or 50 mM ethanol (short-term). CBA/SIV decreased differentiation and increased non-mitochondrial oxygen consumption rate (OCR) versus naïve and/or VEH/SIV. Short-term alcohol decreased differentiation; increased maximal and non-mitochondrial OCR, mitochondrial reactive oxygen species (ROS) production, and aldolase activity; and decreased glycolytic measures, ATP production, mitochondrial membrane potential (ΔΨm), and pyruvate kinase activity. Mitochondrial ROS production was closely associated with mitochondrial network volume, and differentiation indices were closely associated with key bioenergetic health and function parameters. Results indicate that short-term alcohol and CBA non-synergistically decrease myoblast differentiation capacity. Short-term alcohol impaired myoblast glycolytic function, driving the bioenergetic deficit. Results suggest potentially differing mechanisms underlying decreased differentiation capacity with short-term alcohol and CBA, highlighting the need to elucidate the impact of different alcohol use patterns on myopathy.
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Affiliation(s)
- Danielle E. Levitt
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (B.L.B.); (K.M.R.-G.); (P.E.M.)
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
| | - Brianna L. Bourgeois
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (B.L.B.); (K.M.R.-G.); (P.E.M.)
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Keishla M. Rodríguez-Graciani
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (B.L.B.); (K.M.R.-G.); (P.E.M.)
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Patricia E. Molina
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (B.L.B.); (K.M.R.-G.); (P.E.M.)
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Liz Simon
- Department of Physiology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (B.L.B.); (K.M.R.-G.); (P.E.M.)
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
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6
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Sercel AJ, Sturm G, Gallagher D, St-Onge MP, Kempes CP, Pontzer H, Hirano M, Picard M. Hypermetabolism and energetic constraints in mitochondrial disorders. Nat Metab 2024; 6:192-195. [PMID: 38337097 DOI: 10.1038/s42255-023-00968-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Affiliation(s)
- Alexander J Sercel
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
- Department of Biochemistry and Biophysics, University of California, San Francisco, California, USA
| | - Dympna Gallagher
- Department of Medicine, Columbia University Irving Medical Center, New York, USA
| | - Marie-Pierre St-Onge
- Division of General Medicine and Center of Excellence for Sleep & Circadian Research, Department of Medicine, Columbia University Irving Medical Center, New York, USA
| | | | - Herman Pontzer
- Department of Evolutionary Anthropology, Duke University, North Carolina, USA
- Duke Global Health Institute, Duke University, North Carolina, USA
| | - Michio Hirano
- Department of Neurology, H. Houston Merritt Center, Columbia University Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA.
- Department of Neurology, H. Houston Merritt Center, Columbia University Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, USA.
- New York State Psychiatric Institute, New York, USA.
- Robert N Butler Columbia Aging Center, Columbia University Mailman School of Public Health, New York, NY, USA.
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7
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Moreno-Cubero E, Alrubayyi A, Balint S, Ogbe A, Gill US, Matthews R, Kinloch S, Burns F, Rowland-Jones SL, Borrow P, Schurich A, Dustin M, Peppa D. IL-15 reprogramming compensates for NK cell mitochondrial dysfunction in HIV-1 infection. JCI Insight 2024; 9:e173099. [PMID: 38385747 PMCID: PMC11143930 DOI: 10.1172/jci.insight.173099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/10/2024] [Indexed: 02/23/2024] Open
Abstract
Dynamic regulation of cellular metabolism is important for maintaining homeostasis and can directly influence immune cell function and differentiation, including NK cell responses. Persistent HIV-1 infection leads to a state of chronic immune activation, NK cell subset redistribution, and progressive NK cell dysregulation. In this study, we examined the metabolic processes that characterize NK cell subsets in HIV-1 infection, including adaptive NK cell subpopulations expressing the activating receptor NKG2C, which expand during chronic infection. These adaptive NK cells exhibit an enhanced metabolic profile in HIV-1- individuals infected with human cytomegalovirus (HCMV). However, the bioenergetic advantage of adaptive CD57+NKG2C+ NK cells is diminished during chronic HIV-1 infection, where NK cells uniformly display reduced oxidative phosphorylation (OXPHOS). Defective OXPHOS was accompanied by increased mitochondrial depolarization, structural alterations, and increased DRP-1 levels promoting fission, suggesting that mitochondrial defects are restricting the metabolic plasticity of NK cell subsets in HIV-1 infection. The metabolic requirement for the NK cell response to receptor stimulation was alleviated upon IL-15 pretreatment, which enhanced mammalian target of rapamycin complex 1 (mTORC1) activity. IL-15 priming enhanced NK cell functionality to anti-CD16 stimulation in HIV-1 infection, representing an effective strategy for pharmacologically boosting NK cell responses.
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Affiliation(s)
| | | | - Stefan Balint
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Ane Ogbe
- Nuffield Department of Clinical Medicine and
| | - Upkar S. Gill
- Department of Hepatology, Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | | | - Sabine Kinloch
- Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Fiona Burns
- Institute for Global Health UCL, London, United Kingdom
- Royal Free London NHS Foundation Trust, London, United Kingdom
| | | | | | - Anna Schurich
- School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Michael Dustin
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Dimitra Peppa
- Royal Free London NHS Foundation Trust, London, United Kingdom
- Division of Infection and Immunity, University College London, London, United Kingdom
- Mortimer Market Centre, Department of HIV, CNWL NHS Trust, London, United Kingdom
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8
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Zheng S, Dadina N, Mozumdar D, Lesiak L, Martinez KN, Miller EW, Schepartz A. Long-term super-resolution inner mitochondrial membrane imaging with a lipid probe. Nat Chem Biol 2024; 20:83-92. [PMID: 37857992 PMCID: PMC10746544 DOI: 10.1038/s41589-023-01450-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 09/14/2023] [Indexed: 10/21/2023]
Abstract
The inner mitochondrial membrane (IMM) generates power to drive cell function, and its dynamics control mitochondrial health and cellular homeostasis. Here, we describe the cell-permeant, lipid-like small molecule MAO-N3 and use it to assemble high-density environmentally sensitive (HIDE) probes that selectively label and image the IMM in live cells and multiple cell states. MAO-N3 pairs with strain-promoted azide-alkyne click chemistry-reactive fluorophores to support HIDE imaging using confocal, structured illumination, single-molecule localization and stimulated emission depletion microscopy, all with significantly improved resistance to photobleaching. These probes generate images with excellent spatial and temporal resolution, require no genetic manipulations, are non-toxic in model cell lines and primary cardiomyocytes (even under conditions that amplify the effects of mitochondrial toxins) and can visualize mitochondrial dynamics for 12.5 h. This probe will enable comprehensive studies of IMM dynamics with high temporal and spatial resolution.
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Affiliation(s)
- Shuai Zheng
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA
| | - Neville Dadina
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA
| | - Deepto Mozumdar
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Lauren Lesiak
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA
| | - Kayli N Martinez
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA
| | - Evan W Miller
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Alanna Schepartz
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, USA.
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA.
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, San Francisco, CA, USA.
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9
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Crowell PD, Giafaglione JM, Jones AE, Nunley NM, Hashimoto T, Delcourt AML, Petcherski A, Agrawal R, Bernard MJ, Diaz JA, Heering KY, Huang RR, Low JY, Matulionis N, Navone NM, Ye H, Zoubeidi A, Christofk HR, Rettig MB, Reiter RE, Haffner MC, Boutros PC, Shirihai OS, Divakaruni AS, Goldstein AS. MYC is a regulator of androgen receptor inhibition-induced metabolic requirements in prostate cancer. Cell Rep 2023; 42:113221. [PMID: 37815914 DOI: 10.1016/j.celrep.2023.113221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 08/17/2023] [Accepted: 09/20/2023] [Indexed: 10/12/2023] Open
Abstract
Advanced prostate cancers are treated with therapies targeting the androgen receptor (AR) signaling pathway. While many tumors initially respond to AR inhibition, nearly all develop resistance. It is critical to understand how prostate tumor cells respond to AR inhibition in order to exploit therapy-induced phenotypes prior to the outgrowth of treatment-resistant disease. Here, we comprehensively characterize the effects of AR blockade on prostate cancer metabolism using transcriptomics, metabolomics, and bioenergetics approaches. The metabolic response to AR inhibition is defined by reduced glycolysis, robust elongation of mitochondria, and increased reliance on mitochondrial oxidative metabolism. We establish DRP1 activity and MYC signaling as mediators of AR-blockade-induced metabolic phenotypes. Rescuing DRP1 phosphorylation after AR inhibition restores mitochondrial fission, while rescuing MYC restores glycolytic activity and prevents sensitivity to complex I inhibition. Our study provides insight into the regulation of treatment-induced metabolic phenotypes and vulnerabilities in prostate cancer.
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Affiliation(s)
- Preston D Crowell
- Molecular Biology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jenna M Giafaglione
- Molecular Biology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Anthony E Jones
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nicholas M Nunley
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Takao Hashimoto
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amelie M L Delcourt
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Anton Petcherski
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Raag Agrawal
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Matthew J Bernard
- Molecular Biology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Johnny A Diaz
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kylie Y Heering
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Rong Rong Huang
- Department of Pathology & Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jin-Yih Low
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Nedas Matulionis
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nora M Navone
- Department of GU Medical Oncology, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Huihui Ye
- Department of Pathology & Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amina Zoubeidi
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada; Vancouver Prostate Centre, Vancouver, BC, Canada
| | - Heather R Christofk
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Stem Cell Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Matthew B Rettig
- Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Robert E Reiter
- Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Michael C Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Paul C Boutros
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Institute for Precision Health, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Orian S Shirihai
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Division of Endocrinology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Clinical Biochemistry, School of Medicine, Ben Gurion University of The Negev, Beer-Sheva, Israel
| | - Ajit S Divakaruni
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andrew S Goldstein
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Stem Cell Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Djaja NA, Bracha T, Yu SB, Wang H, Carlson NM, Pekkurnaz G. FluxNorm: Toolbox for metabolic flux assay normalization by in situ cell counting. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.13.562314. [PMID: 37873183 PMCID: PMC10592829 DOI: 10.1101/2023.10.13.562314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Plate-based quantitative metabolic flux analysis has emerged as the central technology to examine cellular metabolism and mitochondrial bioenergetics. However, accurate interpretation of metabolic activity between different experimental conditions in multi-well microplates requires data normalization based on in situ cell counts. Here, we describe FluxNorm, a platform-independent semi-automated computational workflow, validated for three different cell types, to normalize cell density for accurate assessment of cellular bioenergetics.
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Schimmel S, El Sayed B, Lockard G, Gordon J, Young I, D’Egidio F, Lee JY, Rodriguez T, Borlongan CV. Identifying the Target Traumatic Brain Injury Population for Hyperbaric Oxygen Therapy. Int J Mol Sci 2023; 24:14612. [PMID: 37834059 PMCID: PMC10572450 DOI: 10.3390/ijms241914612] [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: 08/31/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Traumatic brain injury (TBI) results from direct penetrating and indirect non-penetrating forces that alters brain functions, affecting millions of individuals annually. Primary injury following TBI is exacerbated by secondary brain injury; foremost is the deleterious inflammatory response. One therapeutic intervention being increasingly explored for TBI is hyperbaric oxygen therapy (HBOT), which is already approved clinically for treating open wounds. HBOT consists of 100% oxygen administration, usually between 1.5 and 3 atm and has been found to increase brain oxygenation levels after hypoxia in addition to decreasing levels of inflammation, apoptosis, intracranial pressure, and edema, reducing subsequent secondary injury. The following review examines recent preclinical and clinical studies on HBOT in the context of TBI with a focus on contributing mechanisms and clinical potential. Several preclinical studies have identified pathways, such as TLR4/NF-kB, that are affected by HBOT and contribute to its therapeutic effect. Thus far, the mechanisms mediating HBOT treatment have yet to be fully elucidated and are of interest to researchers. Nonetheless, multiple clinical studies presented in this review have examined the safety of HBOT and demonstrated the improved neurological function of TBI patients after HBOT, deeming it a promising avenue for treatment.
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Affiliation(s)
- Samantha Schimmel
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Bassel El Sayed
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Gavin Lockard
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | - Jonah Gordon
- Morsani College of Medicine, University of South Florida, 560 Channelside Dr., Tampa, FL 33602, USA; (S.S.); (B.E.S.); (G.L.); (J.G.)
| | | | - Francesco D’Egidio
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
| | - Jea Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
| | - Thomas Rodriguez
- School of Medicine, Loma Linda University, 11175 Campus St., Loma Linda, CA 92350, USA;
| | - Cesar V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (F.D.); (J.Y.L.)
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