1
|
DeConne TM, Fancher IS, Edwards DG, Trott DW, Martens CR. CD8 + T-cell metabolism is related to cerebrovascular reactivity in middle-aged adults. Am J Physiol Regul Integr Comp Physiol 2024; 326:R416-R426. [PMID: 38406845 DOI: 10.1152/ajpregu.00267.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
Cerebrovascular reactivity (CVR) decreases with advancing age, contributing to increased risk of cognitive impairment; however, the mechanisms underlying the age-related decrease in CVR are incompletely understood. Age-related changes to T cells, such as impaired mitochondrial respiration, increased inflammation, likely contribute to peripheral and cerebrovascular dysfunction in animals. However, whether T-cell mitochondrial respiration is related to cerebrovascular function in humans is not known. Therefore, we hypothesized that peripheral T-cell mitochondrial respiration would be positively associated with CVR and that T-cell glycolytic metabolism would be negatively associated with CVR. Twenty middle-aged adults (58 ± 5 yr) were recruited for this study. T cells were separated from peripheral blood mononuclear cells. Cellular oxygen consumption rate (OCR) and extracellular acidification rate (ECAR, a marker of glycolytic activity) were measured using extracellular flux analysis. CVR was quantified using the breath-hold index (BHI), which reflects the change in blood velocity in the middle-cerebral artery (MCAv) during a 30-s breath-hold. In contrast to our hypothesis, we found that basal OCR in CD8+ T cells (β = -0.59, R2 = 0.27, P = 0.019) was negatively associated with BHI. However, in accordance with our hypothesis, we found that basal ECAR (β = -2.20, R2 = 0.29, P = 0.015) and maximum ECAR (β = -50, R2 = 0.24, P = 0.029) were negatively associated with BHI in CD8+ T cells. There were no associations observed in CD4+ T cells. These associations appeared to be primarily mediated by an association with the pressor response to the breath-hold test. Overall, our findings suggest that CD8+ T-cell respiration and glycolytic activity may influence CVR in humans.NEW & NOTEWORTHY Peripheral T-cell metabolism is related to in vivo cerebrovascular reactivity in humans. Higher glycolytic metabolism in CD8+ T cells was associated with lower cerebrovascular reactivity to a breath-hold in middle-aged adults, which is possibly reflective of a more proinflammatory state in midlife.
Collapse
Affiliation(s)
- Theodore M DeConne
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States
| | - Ibra S Fancher
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, United States
| | - David G Edwards
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, United States
| | - Daniel W Trott
- Department of Kinesiology, University of Texas at Arlington, Arlington, Texas, United States
| | - Christopher R Martens
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, United States
| |
Collapse
|
2
|
Eslamizad M, Albrecht D, Kuhla B, Koch F. Cellular and mitochondrial adaptation mechanisms in the colon of lactating dairy cows during hyperthermia. J Dairy Sci 2024; 107:3292-3305. [PMID: 38056565 DOI: 10.3168/jds.2023-24004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 11/08/2023] [Indexed: 12/08/2023]
Abstract
Heat stress causes barrier dysfunction and inflammation of the small intestine of several species. However, less is known about the molecular and cellular mechanisms underlying the response of the bovine large intestine to hyperthermia. We aimed to identify changes in the colon of dairy cows in response to constant heat stress using a proteomic approach. Eighteen lactating Holstein dairy cows were kept under constant thermoneutral conditions (16°C and 68% relative humidity [RH]; temperature-humidity index [THI] = 60) for 6 d (period 1) with free access to feed and water. Thereafter, 6 cows were equally allocated to (1) thermoneutral condition with ad libitum feeding (TNAL; 16°C, RH = 68%, THI = 60), (2) heat stress condition (HS; 28°C, RH = 50%, THI = 76) with ad libitum feeding, or (3) pair-feeding at thermoneutrality (TNPF; 16°C, RH = 68%, THI = 60) for another 7 d (period 2). Rectal temperature, milk yield, dry matter and water intake were monitored daily. Then, cows were slaughtered and colon mucosa samples were taken for proteomic analysis. Physiological data were analyzed by ANOVA and colon proteome data were processed using DESeq2 package in R. Rectal temperature was significantly higher in HS than in TNPF and TNAL cows in period 2. Proteomic analysis revealed an enrichment of activated pathways related to colonic barrier function and inflammation, heat shock proteins, AA metabolism, reduced overall protein synthesis rate, and post-transcriptional regulation induced by heat stress. Further regulations were found for enzymes of the tricarboxylic acid cycle and components of the mitochondrial electron transport chain, presumably to reduce the generation of reactive oxygen species, maintain cellular ATP levels, and prevent apoptosis in the colon of HS cows. These results highlight the cellular, extracellular, and mitochondrial adaptations of the colon during heat stress and suggest a dysfunction of the hindgut barrier integrity potentially resulting in a "leaky" colon.
Collapse
Affiliation(s)
- Mehdi Eslamizad
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany
| | - Dirk Albrecht
- Department for Microbial Physiology and Molecular Biology, University of Greifswald, 17489 Greifswald, Germany
| | - Björn Kuhla
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany
| | - Franziska Koch
- Research Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," 18196 Dummerstorf, Germany.
| |
Collapse
|
3
|
Hembach S, Schmidt S, Orschmann T, Burtscher I, Lickert H, Giesert F, Weisenhorn DV, Wurst W. Engrailed 1 deficiency induces changes in ciliogenesis during human neuronal differentiation. Neurobiol Dis 2024; 194:106474. [PMID: 38518837 DOI: 10.1016/j.nbd.2024.106474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/24/2024] Open
Abstract
A key pathological feature of Parkinson's Disease (PD) is the progressive degeneration of dopaminergic neurons (DAns) in the substantia nigra pars compacta. Considering the major role of EN1 in the development and maintenance of these DAns and the implications from En1 mouse models, it is highly interesting to study the molecular and protective effect of EN1 also in a human cellular model. Therefore, we generated EN1 knock-out (ko) human induced pluripotent stem cell (hiPSCs) lines and analyzed these during neuronal differentiation. Although the EN1 ko didn't interfere with neuronal differentiation and generation of tyrosine hydroxylase positive (TH+) neurons per se, the neurons exhibited shorter neurites. Furthermore, mitochondrial respiration, as well as mitochondrial complex I abundance was significantly reduced in fully differentiated neurons. To understand the implications of an EN1 ko during differentiation, we performed a transcriptome analysis of human neuronal precursor cells (hNPCs) which unveiled alterations in cilia-associated pathways. Further analysis of ciliary morphology revealed an elongation of primary cilia in EN1-deficient hNPCs. Besides, also Wnt signaling pathways were severely affected. Upon stimulating hNPCs with Wnt which drastically increased EN1 expression in WT lines, the phenotypes concerning mitochondrial function and cilia were exacerbated in EN1 ko hNPCs. They failed to enhance the expression of the complex I subunits NDUFS1 and 3, and now displayed a reduced mitochondrial respiration. Furthermore, Wnt stimulation decreased ciliogenesis in EN1 ko hNPCs but increased ciliary length even further. This further highlights the relevance of primary cilia next to mitochondria for the functionality and correct maintenance of human DAns and provides new possibilities to establish neuroprotective therapies for PD.
Collapse
Affiliation(s)
- Sina Hembach
- Institute of Developmental Genetics, Helmholtz Munich, Neuherberg, Germany; Munich School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - Sebastian Schmidt
- Institute of Developmental Genetics, Helmholtz Munich, Neuherberg, Germany; Neurobiological Engineering, Munich Institute of Biomedical Engineering, TUM School of Natural Sciences, Garching, Germany; Deutsche Zentrum für Psychische Gesundheit (DZPG), Site Munich-Augsburg, Munich, Germany
| | - Tanja Orschmann
- Institute of Developmental Genetics, Helmholtz Munich, Neuherberg, Germany
| | - Ingo Burtscher
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; School of Medicine, Technische Universität München, Munich, Germany
| | - Florian Giesert
- Institute of Developmental Genetics, Helmholtz Munich, Neuherberg, Germany
| | | | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Munich, Neuherberg, Germany; Deutsche Zentrum für Psychische Gesundheit (DZPG), Site Munich-Augsburg, Munich, Germany; Technische Universität München-Weihenstephan, Neuherberg, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
| |
Collapse
|
4
|
Zhuang F, Huang S, Liu L. PYCR3 Modulates mtDNA Copy Number to Drive Proliferation and Doxorubicin Resistance in Triple-Negative Breast Cancer. Int J Biochem Cell Biol 2024:106581. [PMID: 38642827 DOI: 10.1016/j.biocel.2024.106581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
Triple-negative breast cancer (TNBC) poses significant challenges in treatment due to its aggressive nature and limited therapeutic targets. Understanding the underlying molecular mechanisms driving TNBC progression and chemotherapy resistance is imperative for developing effective therapeutic strategies. Thus, in this study, we aimed to elucidate the role of pyrroline-5-carboxylate reductase 3 (PYCR3) in TNBC pathogenesis and therapeutic response. We observed that PYCR3 is significantly upregulated in TNBC specimens compared to normal breast tissues, correlating with a poorer prognosis in TNBC patients. Knockdown of PYCR3 not only suppresses TNBC cell proliferation but also reverses acquired resistance of TNBC cells to doxorubicin, a commonly used chemotherapeutic agent. Mechanistically, we identified the mitochondrial localization of PYCR3 in TNBC cells and demonstrated its impact on TNBC cell proliferation and sensitivity to doxorubicin through the regulation of mtDNA copy number and mitochondrial respiration. Importantly, Selective reduction of mtDNA copy number using the mtDNA replication inhibitor 2', 3'-dideoxycytidine effectively recapitulates the phenotypic effects observed in PYCR3 knockout, resulting in decreased TNBC cell proliferation and the reversal of doxorubicin resistance through apoptosis induction. Thus, our study underscores the clinical relevance of PYCR3 and highlight its potential as a therapeutic target in TNBC management. By elucidating the functional significance of PYCR3 in TNBC, our findings contribute to a deeper understanding of TNBC biology and provide a foundation for developing novel therapeutic strategies aimed at improving patient outcomes.
Collapse
Affiliation(s)
- Feifei Zhuang
- Department of Medical Oncology, Yantaishan Hospital, Yantai, Shandong Province, China
| | - Shaoyan Huang
- Department of Medical Oncology, Yantaishan Hospital, Yantai, Shandong Province, China
| | - Lei Liu
- Department of Medical Oncology, Yantaishan Hospital, Yantai, Shandong Province, China.
| |
Collapse
|
5
|
Djurabekova A, Lasham J, Zdorevskyi O, Zickermann V, Sharma V. Long-range electron proton coupling in respiratory complex I - insights from molecular simulations of the quinone chamber and antiporter-like subunits. Biochem J 2024; 481:499-514. [PMID: 38572757 DOI: 10.1042/bcj20240009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 04/05/2024]
Abstract
Respiratory complex I is a redox-driven proton pump. Several high-resolution structures of complex I have been determined providing important information about the putative proton transfer paths and conformational transitions that may occur during catalysis. However, how redox energy is coupled to the pumping of protons remains unclear. In this article, we review biochemical, structural and molecular simulation data on complex I and discuss several coupling models, including the key unresolved mechanistic questions. Focusing both on the quinone-reductase domain as well as the proton-pumping membrane-bound domain of complex I, we discuss a molecular mechanism of proton pumping that satisfies most experimental and theoretical constraints. We suggest that protonation reactions play an important role not only in catalysis, but also in the physiologically-relevant active/deactive transition of complex I.
Collapse
Affiliation(s)
| | - Jonathan Lasham
- Department of Physics, University of Helsinki, Helsinki, Finland
| | | | - Volker Zickermann
- Institute of Biochemistry II, University Hospital, Goethe University, Frankfurt am Main, Germany
- Centre for Biomolecular Magnetic Resonance, Institute for Biophysical Chemistry, Goethe University, Frankfurt am Main, Germany
| | - Vivek Sharma
- Department of Physics, University of Helsinki, Helsinki, Finland
- HiLIFE Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| |
Collapse
|
6
|
Speichinger F, Gratl A, Raude B, Schawe L, Carstens J, Hering NA, Greiner A, Pesta D, Frese JP. Mitochondrial respiration in peripheral arterial disease depends on stage severity. J Cell Mol Med 2024; 28:e18126. [PMID: 38534092 DOI: 10.1111/jcmm.18126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/17/2023] [Accepted: 01/05/2024] [Indexed: 03/28/2024] Open
Abstract
Peripheral arterial disease (PAD) is an increasing cause of morbidity and its severity is graded based on clinical manifestation. To investigate the influence of the different stages on myopathy of ischemic muscle we analysed severity-dependent effects of mitochondrial respiration in PAD. Eighteen patients with severe PAD, defined as chronic limb-threatening ischemia, 47 patients with intermittent claudication (IC) and 22 non-ischemic controls were analysed. High-resolution respirometry (HRR) was performed on muscle biopsies of gastrocnemius and vastus lateralis muscle of patients in different PAD stages to investigate different respiratory states. Results from HRR are given as median and interquartile range and were normalized to citrate synthase activity (CSA), a marker for mitochondrial content. In order to account for inter-individual differences between patients and controls, we calculated the ratio of O₂-flux in gastrocnemius muscle over vastus muscle ('GV ratio'). CSA of the gastrocnemius muscle as a proxy for mitochondrial content was significantly lower in critical ischemia compared to controls. Mitochondrial respiration normalized to CSA was higher in IC compared to controls. Likewise, the GV ratio was significantly higher in IC compared to control. Mitochondrial respiration and CSA of PAD patients showed stage-dependent modifications with greater changes in the mild PAD stage group (IC).
Collapse
Affiliation(s)
- Fiona Speichinger
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of General and Visceral Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Alexandra Gratl
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of Vascular Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Ben Raude
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Larissa Schawe
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jan Carstens
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Nina A Hering
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of General and Visceral Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Andreas Greiner
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Dominik Pesta
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Centre for Endocrinology, Diabetes and Preventive Medicine (CEDP), University Hospital Cologne, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany
| | - Jan Paul Frese
- Department of Vascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
7
|
Giménez-Palomo A, Guitart-Mampel M, Roqué G, Sánchez E, Borràs R, Meseguer A, García-García FJ, Tobías E, Valls-Roca L, Anmella G, Valentí M, Olivier L, de Juan O, Ochandiano I, Andreu H, Radua J, Verdolini N, Berk M, Vieta E, Garrabou G, Roca J, Alsina-Restoy X, Pacchiarotti I. Aerobic capacity and mitochondrial function in bipolar disorder: a longitudinal study during acute phases and after clinical remission. Front Psychiatry 2024; 15:1386286. [PMID: 38596629 PMCID: PMC11002204 DOI: 10.3389/fpsyt.2024.1386286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/13/2024] [Indexed: 04/11/2024] Open
Abstract
Background Aerobic capacity has shown to predict physical and mental health-related quality of life in bipolar disorder (BD). However, the correlation between exercise respiratory capacity and mitochondrial function remains understudied. We aimed to assess longitudinally intra-individual differences in these factors during mood episodes and remission in BD. Methods This study included eight BD patients admitted to an acute psychiatric unit. Incremental cardiopulmonary exercise test (CPET) was conducted during acute episodes (T0), followed by constant work rate cycle ergometry (CWRCE) to evaluate endurance time, oxygen uptake at peak exercise (VO2peak) and at the anaerobic threshold. The second test was repeated during remission (T1). Mitochondrial respiration rates were assessed at T0 and T1 in peripheral blood mononuclear cells. Results Endurance time, VO2peak, and anaerobic threshold oxygen consumption showed no significant variations between T0 and T1. Basal oxygen consumption at T1 tended to inversely correlate with maximal mitochondrial respiratory capacity (r=-0.690, p=0.058), and VO2peak during exercise at T1 inversely correlated with basal and minimum mitochondrial respiration (r=-0.810, p=0.015; r=-0.786, p=0.021, respectively). Conclusions Our preliminary data showed that lower basal oxygen consumption may be linked to greater mitochondrial respiratory capacity, and maximum oxygen uptake during the exercise task was associated with lower basal mitochondrial respiration, suggesting that lower oxygen requirements could be associated with greater mitochondrial capacity. These findings should be replicated in larger samples stratified for manic and depressive states.
Collapse
Affiliation(s)
- Anna Giménez-Palomo
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Mariona Guitart-Mampel
- Inherited Metabolic Diseases and Muscular Disorders Research Lab, Cellex-IDIBAPS, Faculty of Medicine and Health Sciences-University of Barcelona, Internal Medicine Department-Hospital Clinic of Barcelona and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Catalonia, Spain
| | - Gemma Roqué
- Pneumology Department (ICR), Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Catalonia, Spain
| | - Ester Sánchez
- Pneumology Department (ICR), Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Catalonia, Spain
| | - Roger Borràs
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ana Meseguer
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
| | - Francesc Josep García-García
- Inherited Metabolic Diseases and Muscular Disorders Research Lab, Cellex-IDIBAPS, Faculty of Medicine and Health Sciences-University of Barcelona, Internal Medicine Department-Hospital Clinic of Barcelona and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Catalonia, Spain
| | - Esther Tobías
- Inherited Metabolic Diseases and Muscular Disorders Research Lab, Cellex-IDIBAPS, Faculty of Medicine and Health Sciences-University of Barcelona, Internal Medicine Department-Hospital Clinic of Barcelona and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Catalonia, Spain
| | - Laura Valls-Roca
- Inherited Metabolic Diseases and Muscular Disorders Research Lab, Cellex-IDIBAPS, Faculty of Medicine and Health Sciences-University of Barcelona, Internal Medicine Department-Hospital Clinic of Barcelona and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Catalonia, Spain
| | - Gerard Anmella
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Marc Valentí
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Luis Olivier
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Oscar de Juan
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Iñaki Ochandiano
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Helena Andreu
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Joaquim Radua
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Norma Verdolini
- Local Health Unit Umbria 1, Department of Mental Health, Mental Health Center of Perugia, Perugia, Italy
| | - Michael Berk
- IMPACT, The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC, Australia
- Centre for Youth Mental Health, Florey Institute for Neuroscience and Mental Health and the Department of Psychiatry, Orygen, The University of Melbourne, Melbourne, Australia
| | - Eduard Vieta
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| | - Glòria Garrabou
- Inherited Metabolic Diseases and Muscular Disorders Research Lab, Cellex-IDIBAPS, Faculty of Medicine and Health Sciences-University of Barcelona, Internal Medicine Department-Hospital Clinic of Barcelona and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Catalonia, Spain
| | - Josep Roca
- Pneumology Department (ICR), Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Catalonia, Spain
| | - Xavier Alsina-Restoy
- Pneumology Department (ICR), Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Catalonia, Spain
| | - Isabella Pacchiarotti
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
- Bipolar and Depressive Disorders Unit, Institut d’Investigacions Biomédiques August Pi I Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
- Biomedical Research Networking Centre Consortium on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, School of Medicine and Health Sciences, Institute of Neurosciences (UBNeuro), University of Barcelona (UB), Barcelona, Catalonia, Spain
| |
Collapse
|
8
|
Kovacevic B, Wagle SR, Ionescu CM, Foster T, Đanić M, Mikov M, Mooranian A, Al-Salami H. Biotechnological Effects of Advanced Smart-bile Acid Cyclodextrin-based Nanogels for Ear Delivery and Treatment of Hearing Loss. Adv Healthc Mater 2024:e2303149. [PMID: 38514042 DOI: 10.1002/adhm.202303149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/26/2024] [Indexed: 03/23/2024]
Abstract
Inner ear delivery requires safe and effective drug delivery vehicles incorporating high-viscosity formulations with permeation enhancers. This study designs novel thermoresponsive-smart polymer-bile acid and cyclodextrin-based nanogels for inner ear delivery. Nanogels are examined for their rheological and physical properties. The biocompatibility studies will be assessed on auditory and macrophage cell lines by investigating the impact of nanogels on cellular viability, mitochondrial respiration, glycolysis, intracellular oxidative stress, inflammatory profile, and macrophage polarisation. Novel thermoresponsive nanogels based on bile acid and beta-cyclodextrin show preserved porous nanogels' inner structure, exhibit non-Newtonian, shear-thinning fluid behaviour, have fast gelation at 37 °C and minimal albumin adsorption on the surface. The nanogels have minimal impact on cellular viability, mitochondrial respiration, glycolysis, intracellular oxidative stress, and inflammatory profile of auditory cell line House Ear Institute-Organ of Corti 1 after 24 hours incubation. Nanogel exposure of 24 hours to macrophage cell line RAW264.7 leads to decreased viability, mitochondrial dysfunction, and increased intracellular ROS and inflammatory cytokines. However, polarisation changes from M2 anti-inflammatory to M1 pro-inflammatory macrophages are minimal, and inflammatory products of RAW264.7 macrophages do not overly disrupt the survivability of HEI-OC1 cells. Based on these results, thermoresponsive bile acid and cyclodextrin nanogels can be potential drug delivery vehicles for inner ear drug delivery. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Maja Đanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Pharmacy, University of Otago, Dunedin, Otago, New Zealand
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- UWA Medical School, University of Western Australia, Perth, Australia
| |
Collapse
|
9
|
Wei W, Liu Y, Hou Y, Cao S, Chen Z, Zhang Y, Cai X, Yan Q, Li Z, Yuan Y, Wang G, Zheng X, Hao H. Psychological stress-induced microbial metabolite indole-3-acetate disrupts intestinal cell lineage commitment. Cell Metab 2024; 36:466-483.e7. [PMID: 38266651 DOI: 10.1016/j.cmet.2023.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/12/2023] [Accepted: 12/21/2023] [Indexed: 01/26/2024]
Abstract
The brain and gut are intricately connected and respond to various stimuli. Stress-induced brain-gut communication is implicated in the pathogenesis and relapse of gut disorders. The mechanism that relays psychological stress to the intestinal epithelium, resulting in maladaptation, remains poorly understood. Here, we describe a stress-responsive brain-to-gut metabolic axis that impairs intestinal stem cell (ISC) lineage commitment. Psychological stress-triggered sympathetic output enriches gut commensal Lactobacillus murinus, increasing the production of indole-3-acetate (IAA), which contributes to a transferrable loss of intestinal secretory cells. Bacterial IAA disrupts ISC mitochondrial bioenergetics and thereby prevents secretory lineage commitment in a cell-intrinsic manner. Oral α-ketoglutarate supplementation bolsters ISC differentiation and confers resilience to stress-triggered intestinal epithelial injury. We confirm that fecal IAA is higher in patients with mental distress and is correlated with gut dysfunction. These findings uncover a microbe-mediated brain-gut pathway that could be therapeutically targeted for stress-driven gut-brain comorbidities.
Collapse
Affiliation(s)
- Wei Wei
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yali Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Yuanlong Hou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacy, Shenzhen Luohu People's Hospital, Shenzhen 518005, China
| | - Shuqi Cao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhuo Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Youying Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaoying Cai
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Qingyuan Yan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ziguang Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yonggui Yuan
- Department of Psychosomatics and Psychiatry, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
| | - Guangji Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Xiao Zheng
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; Laboratory of Metabolic Regulation and Drug Target Discovery, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| |
Collapse
|
10
|
Esteca MV, Divino IA, Vieira da Silva AL, Severino MB, Braga RR, Ropelle ER, Simabuco FM, Baptista IL. Parkin is a critical player in the effects of caffeine over mitochondrial quality control pathways during skeletal muscle regeneration in mice. Acta Physiol (Oxf) 2024; 240:e14111. [PMID: 38314948 DOI: 10.1111/apha.14111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 02/07/2024]
Abstract
AIM This study aimed to investigate the effects of caffeine on pathways associated with mitochondrial quality control and mitochondrial capacity during skeletal muscle regeneration, focusing on the role of Parkin, a key protein involved in mitophagy. METHODS We used in vitro C2C12 myoblast during differentiation with and without caffeine in the medium, and we evaluated several markers of mitochondrial quality control pathways and myotube growth. In vivo experiments, we used C57BL/6J (WT) and Parkintm 1Shn lineage (Parkin-/- ) mice and injured tibial anterior muscle. The mice regenerated TA muscle for 3, 10, and 21 days with or without caffeine ingestion. TA muscle was used to analyze the protein content of several markers of mitochondrial quality pathways, muscle satellite cell differentiation, and protein synthesis. Furthermore, it analyzed mtDNA, mitochondrial respiration, and myofiber growth. RESULTS C2C12 differentiation experiments showed that caffeine decreased Parkin content, potentially leading to increased DRP1 and PGC-1α content and altered mitochondrial population, thereby enhancing growth capacity. Using Parkin-/- mice, we found that caffeine intake during the regenerative process induces an increase in AMPKα phosphorylation and PGC-1α and TFAM content, changes that were partly Parkin-dependent. In addition, the absence of Parkin potentiates the ergogenic effect of caffeine by increasing mitochondrial capacity and myotube growth. Those effects are related to increased ATF4 content and activation of protein synthesis pathways, such as increased 4E-BP1 phosphorylation. CONCLUSION These findings demonstrate that caffeine ingestion changes mitochondrial quality control during skeletal muscle regeneration, and Parkin is a central player in those mechanisms.
Collapse
Affiliation(s)
- M V Esteca
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - I A Divino
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - A L Vieira da Silva
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - M B Severino
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
- Multidisciplinarity Laboratory of Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - R R Braga
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - E R Ropelle
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - F M Simabuco
- Multidisciplinarity Laboratory of Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
- Department of Biochemistry, Federal University of São Paulo, São Paulo, Brazil
| | - I L Baptista
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| |
Collapse
|
11
|
Pinho ACO, Santos D, Oliveira PJ, Leal EC, Carvalho E. Real-time OXPHOS capacity analysis in wounded skin from diabetic mice: A pilot study. Eur J Clin Invest 2024; 54:e14128. [PMID: 37975307 DOI: 10.1111/eci.14128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/25/2023] [Accepted: 11/05/2023] [Indexed: 11/19/2023]
Abstract
INTRODUCTION Diabetes mellitus (DM) impairs wound healing. The aim was to determine whether DM influences mitochondrial respiration in wounded skin (WS) and non-wounded skin (NWS), in a pre-clinical wound healing model of streptozotocin (STZ)-induced diabetes. METHODS Six weeks after diabetes induction, two wounds were created in the back of C57BL/J6 mice. Using high-resolution respirometry (HRR), oxygen flux was measured, in WS and NWS, using two substrate-uncoupler-inhibitor titration protocols, at baseline (day 0), day 3 and 10 post-wounding, in STZ-DM and non-diabetic (NDM) mice. Flux control ratios for the oxidative phosphorylation (OXPHOS) capacity were calculated. RESULTS A significant increase in mitochondrial respiration was observed in STZ-DM skin compared to control skin at baseline. The OXPHOS capacity was decreased in WS under diabetes at day 3 post-wounding (inflammation phase). However, at day 10 post-wounding (remodeling phase), the OXPHOS capacity was higher in WS from STZ-DM compared to NDM mice, and compared to NWS from STZ-DM mice. A significant relative contribution of pyruvate, malate and glutamate (PMG) oxidation to the OXPHOS capacity was observed in WS compared to NWS from STZ-DM mice, at day 10, while the relative contribution of fatty acid oxidation to the OXPHOS capacity was higher in NWS. The OXPHOS capacity is altered in WS from STZ-DM compared to NDM mice across the healing process, and so is the substrate contribution in WS and NWS from STZ-DM mice, at each time point. CONCLUSION HRR may be a sensitive tool to evaluate the underlying mechanisms of tissue repair during wound healing.
Collapse
Grants
- DL57/2016/CP1448/ CT0024 Fundação para a Ciência e a Tecnologia (FCT), I. P, Portugal
- POCI-01-0145-FEDER-007440 Fundação para a Ciência e a Tecnologia (FCT), I. P, Portugal
- SFRH/BD/144199/2019 Fundação para a Ciência e a Tecnologia (FCT), I. P, Portugal
- SFRH/BD/145054/2019 Fundação para a Ciência e a Tecnologia (FCT), I. P, Portugal
- UIDB/04539/2020 Fundação para a Ciência e a Tecnologia (FCT), I. P, Portugal
Collapse
Affiliation(s)
- Aryane Cruz Oliveira Pinho
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB - Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, Faculty of Science and Technology, PhD Programme in Biosciences, University of Coimbra, Coimbra, Portugal
| | - Diana Santos
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB - Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), University of Coimbra, Coimbra, Portugal
| | - Paulo J Oliveira
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB - Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Ermelindo Carreira Leal
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB - Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Eugenia Carvalho
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB - Center for Inovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
- APDP-Portuguese Diabetes Association, Lisbon, Portugal
| |
Collapse
|
12
|
Kim K, Khazan N, Rowswell-Turner RB, Singh RK, Moore T, Strawderman MS, Miller JP, Snyder CWA, Awada A, Moore RG. Forchlorfenuron-Induced Mitochondrial Respiration Inhibition and Metabolic Shifts in Endometrial Cancer. Cancers (Basel) 2024; 16:976. [PMID: 38473335 DOI: 10.3390/cancers16050976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Forchlorfenuron (FCF) is a widely used plant cytokinin that enhances fruit quality and size in agriculture. It also serves as a crucial pharmacological tool for the inhibition of septins. However, the precise target of FCF has not yet been fully determined. This study reveals a novel target of FCF and elucidates its downstream signaling events. FCF significantly impairs mitochondrial respiration and mediates metabolic shift toward glycolysis, thus making cells more vulnerable to glycolysis inhibition. Interestingly, FCF's impact on mitochondrial function persists, even in cells lacking septins. Furthermore, the impaired mitochondrial function leads to the degradation of HIF-1α, facilitated by increased cellular oxygen. FCF also induces AMPK activation, suppresses Erk1/2 phosphorylation, and reduces the expression of HER2, β-catenin, and PD-L1. Endometrial cancer is characterized by metabolic disorders such as diabetes and aberrant HER2/Ras-Erk1/2/β-catenin signaling. Thus, FCF may hold promise as a potential therapeutic in endometrial cancer.
Collapse
Affiliation(s)
- Kyukwang Kim
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Negar Khazan
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Rachael B Rowswell-Turner
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Rakesh K Singh
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Taylor Moore
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Myla S Strawderman
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - John P Miller
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY 14642, USA
| | - Cameron W A Snyder
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Ahmad Awada
- Department of Gynecologic Oncology, Adventhealth, Orlando, FL 32804, USA
| | - Richard G Moore
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14620, USA
| |
Collapse
|
13
|
Bierling TEH, Gumann A, Ottmann SR, Schulz SR, Weckwerth L, Thomas J, Gessner A, Wichert M, Kuwert F, Rost F, Hauke M, Freudenreich T, Mielenz D, Jäck HM, Pracht K. GLUT1-mediated glucose import in B cells is critical for anaplerotic balance and humoral immunity. Cell Rep 2024; 43:113739. [PMID: 38340319 DOI: 10.1016/j.celrep.2024.113739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/14/2023] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
Glucose uptake increases during B cell activation and antibody-secreting cell (ASC) differentiation, but conflicting findings prevent a clear metabolic profile at different stages of B cell activation. Deletion of the glucose transporter type 1 (GLUT1) gene in mature B cells (GLUT1-cKO) results in normal B cell development, but it reduces germinal center B cells and ASCs. GLUT1-cKO mice show decreased antigen-specific antibody titers after vaccination. In vitro, GLUT1-deficient B cells show impaired activation, whereas established plasmablasts abolish glycolysis, relying on mitochondrial activity and fatty acids. Transcriptomics and metabolomics reveal an altered anaplerotic balance in GLUT1-deficient ASCs. Despite attempts to compensate for glucose deprivation by increasing mitochondrial mass and gene expression associated with glycolysis, the tricarboxylic acid cycle, and hexosamine synthesis, GLUT1-deficient ASCs lack the metabolites for energy production and mitochondrial respiration, limiting protein synthesis. We identify GLUT1 as a critical metabolic player defining the germinal center response and humoral immunity.
Collapse
Affiliation(s)
- Theresa E H Bierling
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Amelie Gumann
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Shannon R Ottmann
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian R Schulz
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Leonie Weckwerth
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Jana Thomas
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Arne Gessner
- Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Magdalena Wichert
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Frederic Kuwert
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Franziska Rost
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Manuela Hauke
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Tatjana Freudenreich
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Dirk Mielenz
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Hans-Martin Jäck
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Katharina Pracht
- Division of Molecular Immunology, Internal Medicine III, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany.
| |
Collapse
|
14
|
Vergnes L, Wiese CB, Zore T, Riestenberg C, Avetisyan R, Reue K. Gene Regulation and Mitochondrial Activity During White and Brown Adipogenesis Are Modulated by KDM5 Histone Demethylase. J Endocr Soc 2024; 8:bvae029. [PMID: 38425435 PMCID: PMC10904225 DOI: 10.1210/jendso/bvae029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Indexed: 03/02/2024] Open
Abstract
Body fat accumulation differs between males and females and is influenced by both gonadal sex (ovaries vs testes) and chromosomal sex (XX vs XY). We previously showed that an X chromosome gene, Kdm5c, is expressed at higher levels in females compared to males and correlates with adiposity in mice and humans. Kdm5c encodes a KDM5 histone demethylase that regulates gene expression by modulating histone methylation at gene promoters and enhancers. Here, we use chemical inhibition and genetic knockdown to identify a role for KDM5 activity during early stages of white and brown preadipocyte differentiation, with specific effects on white adipocyte clonal expansion, and white and brown adipocyte gene expression and mitochondrial activity. In white adipogenesis, KDM5 activity modulates H3K4 histone methylation at the Dlk1 gene promoter to repress gene expression and promote progression from preadipocytes to mature adipocytes. In brown adipogenesis, KDM5 activity modulates H3K4 methylation and gene expression of Ucp1, which is required for thermogenesis. Unbiased transcriptome analysis revealed that KDM5 activity regulates genes associated with cell cycle regulation and mitochondrial function, and this was confirmed by functional analyses of cell proliferation and cellular bioenergetics. Using genetic knockdown, we demonstrate that KDM5C is the likely KDM5 family member that is responsible for regulation of white and brown preadipocyte programming. Given that KDM5C levels are higher in females compared to males, our findings suggest that sex differences in white and brown preadipocyte gene regulation may contribute to sex differences in adipose tissue function.
Collapse
Affiliation(s)
- Laurent Vergnes
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Carrie B Wiese
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Temeka Zore
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Carrie Riestenberg
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Rozeta Avetisyan
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Karen Reue
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| |
Collapse
|
15
|
Springer C, Humayun D, Skouta R. Cuproptosis: Unraveling the Mechanisms of Copper-Induced Cell Death and Its Implication in Cancer Therapy. Cancers (Basel) 2024; 16:647. [PMID: 38339398 PMCID: PMC10854864 DOI: 10.3390/cancers16030647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Copper, an essential element for various biological processes, demands precise regulation to avert detrimental health effects and potential cell toxicity. This paper explores the mechanisms of copper-induced cell death, known as cuproptosis, and its potential health and disease implications, including cancer therapy. Copper ionophores, such as elesclomol and disulfiram, increase intracellular copper levels. This elevation triggers oxidative stress and subsequent cell death, offering potential implications in cancer therapy. Additionally, copper ionophores disrupt mitochondrial respiration and protein lipoylation, further contributing to copper toxicity and cell death. Potential targets and biomarkers are identified, as copper can be targeted to those proteins to trigger cuproptosis. The role of copper in different cancers is discussed to understand targeted cancer therapies using copper nanomaterials, copper ionophores, and copper chelators. Furthermore, the role of copper is explored through diseases such as Wilson and Menkes disease to understand the physiological mechanisms of copper. Exploring cuproptosis presents an opportunity to improve treatments for copper-related disorders and various cancers, with the potential to bring significant advancements to modern medicine.
Collapse
Affiliation(s)
- Chloe Springer
- Department of Biology, University of Massachusetts, Amherst, MA 01003, USA;
| | - Danish Humayun
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA;
| | - Rachid Skouta
- Department of Biology, University of Massachusetts, Amherst, MA 01003, USA;
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA;
| |
Collapse
|
16
|
Kosik B, Larsen S, Bergdahl A. Actovegin improves skeletal muscle mitochondrial respiration and functional aerobic capacity in a type 1 diabetic male murine model. Appl Physiol Nutr Metab 2024; 49:265-272. [PMID: 37913525 DOI: 10.1139/apnm-2023-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Insulin deficiency in type 1 diabetes (T1D) leads to an impairment of glucose metabolism and mitochondrial function. Actovegin is a hemodialysate of calf blood, which has been shown to enhance glucose uptake and cell metabolism in healthy human skeletal muscle. The objectives of this study were to determine the effects of Actovegin on skeletal muscle mitochondrial respiration and functional aerobic capacity in a T1D mouse model. Effects on the expression of mitochondrial proteins, body mass, and food and water consumption were also investigated. Streptozotocin-induced T1D male C57B1/6 mice (aged 3-4 months) were randomized to an Actovegin group and a control group. Every third day, the Actovegin and control groups were injected intraperitoneally with (0.1 mL) Actovegin and (0.1 mL) physiological salt solution, respectively. Oxidative phosphorylation (OXPHOS) capacity of the vastus lateralis muscle was measured by high resolution respirometry in addition to the expression levels of the mitochondrial complexes as well as voltage-dependent anion channel. Functional aerobic capacity was measured using a rodent treadmill protocol. Body mass and food and water consumption were also measured. After 13 days, in comparison to the control group, the Actovegin group demonstrated a significantly higher skeletal muscle mitochondrial respiratory capacity in an ADP-restricted and ADP-stimulated environment. The Actovegin group displayed a significantly lesser decline in functional aerobic capacity and baseline body mass after 13 days. There were no significant differences in food or water consumption between groups. Actovegin could act as an effective agent for facilitating glucose metabolism and improving OXPHOS capacity and functional aerobic capacity in T1D. Further investigation is warranted to establish Actovegin's potential as an alternative therapeutic drug for T1D.
Collapse
Affiliation(s)
- Brandon Kosik
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
| | - Steen Larsen
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Andreas Bergdahl
- Department of Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
| |
Collapse
|
17
|
Maseko TE, Elkalaf M, Peterová E, Lotková H, Staňková P, Melek J, Dušek J, Žádníková P, Čížková D, Bezrouk A, Pávek P, Červinková Z, Kučera O. Comparison of HepaRG and HepG2 cell lines to model mitochondrial respiratory adaptations in non‑alcoholic fatty liver disease. Int J Mol Med 2024; 53:18. [PMID: 38186319 PMCID: PMC10781417 DOI: 10.3892/ijmm.2023.5342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024] Open
Abstract
Although some clinical studies have reported increased mitochondrial respiration in patients with fatty liver and early non‑alcoholic steatohepatitis (NASH), there is a lack of in vitro models of non‑alcoholic fatty liver disease (NAFLD) with similar findings. Despite being the most commonly used immortalized cell line for in vitro models of NAFLD, HepG2 cells exposed to free fatty acids (FFAs) exhibit a decreased mitochondrial respiration. On the other hand, the use of HepaRG cells to study mitochondrial respiratory changes following exposure to FFAs has not yet been fully explored. Therefore, the present study aimed to assess cellular energy metabolism, particularly mitochondrial respiration, and lipotoxicity in FFA‑treated HepaRG and HepG2 cells. HepaRG and HepG2 cells were exposed to FFAs, followed by comparative analyses that examained cellular metabolism, mitochondrial respiratory enzyme activities, mitochondrial morphology, lipotoxicity, the mRNA expression of selected genes and triacylglycerol (TAG) accumulation. FFAs stimulated mitochondrial respiration and glycolysis in HepaRG cells, but not in HepG2 cells. Stimulated complex I, II‑driven respiration and β‑oxidation were linked to increased complex I and II activities in FFA‑treated HepaRG cells, but not in FFA‑treated HepG2 cells. Exposure to FFAs disrupted mitochondrial morphology in both HepaRG and HepG2 cells. Lipotoxicity was induced to a greater extent in FFA‑treated HepaRG cells than in FFA‑treated HepG2 cells. TAG accumulation was less prominent in HepaRG cells than in HepG2 cells. On the whole, the present study demonstrates that stimulated mitochondrial respiration is associated with lipotoxicity in FFA‑treated HepaRG cells, but not in FFA‑treated HepG2 cells. These findings suggest that HepaRG cells are more suitable for assessing mitochondrial respiratory adaptations in the developed in vitro model of early‑stage NASH.
Collapse
Affiliation(s)
- Tumisang Edward Maseko
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Moustafa Elkalaf
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Eva Peterová
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
- Department of Medical Biochemistry, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Halka Lotková
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Pavla Staňková
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Jan Melek
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Jan Dušek
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, 500 05 Hradec Kralove, Czech Republic
| | - Petra Žádníková
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Dana Čížková
- Department of Histology and Embryology Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Aleš Bezrouk
- Department of Medical Biophysics, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Petr Pávek
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, 500 05 Hradec Kralove, Czech Republic
| | - Zuzana Červinková
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| | - Otto Kučera
- Department of Physiology, Charles University, Faculty of Medicine in Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
| |
Collapse
|
18
|
Kovacevic B, Ionescu CM, Jones M, Wagle SR, Foster T, Lewkowicz M, Wong EY, Ðanić M, Mikov M, Mooranian A, Al-Salami H. Novel polysaccharides-bile acid-cyclodextrin gel systems and effects on cellular viability and bioenergetic parameters. Ther Deliv 2024; 15:119-134. [PMID: 38180012 DOI: 10.4155/tde-2023-0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024] Open
Abstract
Aim: The novel hydrogel systems made from sodium alginate, pectin, beta-cyclodextrin and deoxycholic acid (DCA) were proposed as potential drug-delivery matrices. Materials & methods: To ensure biocompatibility, rheological parameters were examined and hydrogels' effects on bioenergetic parameters and cellular viability on murine hepatic, and muscle and pancreatic beta cells. Results & conclusion: All hydrogels show non-Newtonian, shear thinning behavior. Cells displayed various oxygen-dependent viability patterns, with the bile acid overall adversely affecting their biological activities. All cells performed best under normoxia, with pancreatic beta cells displaying the most profound oxygen-dependent viability behavior. The cells tolerated the addition of a moderate concentration of beta-cyclodextrin to the polymer matrix.
Collapse
Affiliation(s)
- Bozica Kovacevic
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Melissa Jones
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Michael Lewkowicz
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Elaine Ym Wong
- Hearing Therapeutics, Ear Science Institute Australia, Queen Elizabeth II Medical Centre, Nedlands, Perth, WA 6009, Australia
| | - Maja Ðanić
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Armin Mooranian
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Hani Al-Salami
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| |
Collapse
|
19
|
Zhitkevich A, Bayurova E, Avdoshina D, Zakirova N, Frolova G, Jansons J, Chowdhury S, Ivanov A, Gordeychuk I, Palefsky JM, Isaguliants M. HIV-1 Reverse Transcriptase Expression in HPV16-Infected Epidermoid Carcinoma Cells Alters E6 Expression and Cellular Metabolism, and Induces a Hybrid Epithelial/Mesenchymal Cell Phenotype. Viruses 2024; 16:193. [PMID: 38399969 PMCID: PMC10892743 DOI: 10.3390/v16020193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
The high incidence of epithelial malignancies in HIV-1 infected individuals is associated with co-infection with oncogenic viruses, such as high-risk human papillomaviruses (HR HPVs), mostly HPV16. The molecular mechanisms underlying the HIV-1-associated increase in epithelial malignancies are not fully understood. A collaboration between HIV-1 and HR HPVs in the malignant transformation of epithelial cells has long been anticipated. Here, we delineated the effects of HIV-1 reverse transcriptase on the in vitro and in vivo properties of HPV16-infected cervical cancer cells. A human cervical carcinoma cell line infected with HPV16 (Ca Ski) was made to express HIV-1 reverse transcriptase (RT) by lentiviral transduction. The levels of the mRNA of the E6 isoforms and of the factors characteristic to the epithelial/mesenchymal transition were assessed by real-time RT-PCR. The parameters of glycolysis and mitochondrial respiration were determined using Seahorse technology. RT expressing Ca Ski subclones were assessed for the capacity to form tumors in nude mice. RT expression increased the expression of the E6*I isoform, modulated the expression of E-CADHERIN and VIMENTIN, indicating the presence of a hybrid epithelial/mesenchymal phenotype, enhanced glycolysis, and inhibited mitochondrial respiration. In addition, the expression of RT induced phenotypic alterations impacting cell motility, clonogenic activity, and the capacity of Ca Ski cells to form tumors in nude mice. These findings suggest that HIV-RT, a multifunctional protein, affects HPV16-induced oncogenesis, which is achieved through modulation of the expression of the E6 oncoprotein. These results highlight a complex interplay between HIV antigens and HPV oncoproteins potentiating the malignant transformation of epithelial cells.
Collapse
Affiliation(s)
- Alla Zhitkevich
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 119991 Moscow, Russia; (E.B.); (D.A.); (G.F.); (I.G.)
| | - Ekaterina Bayurova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 119991 Moscow, Russia; (E.B.); (D.A.); (G.F.); (I.G.)
- Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia;
| | - Darya Avdoshina
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 119991 Moscow, Russia; (E.B.); (D.A.); (G.F.); (I.G.)
| | - Natalia Zakirova
- Centre for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia;
| | - Galina Frolova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 119991 Moscow, Russia; (E.B.); (D.A.); (G.F.); (I.G.)
| | - Juris Jansons
- Biomedical Research and Study Centers, LV-1067 Riga, Latvia;
- Institute of Microbiology and Virology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Sona Chowdhury
- Division of Infectious Diseases, Department of Medicine, University of California, San Francisco, CA 94143, USA; (S.C.); (J.M.P.)
| | - Alexander Ivanov
- Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia;
- Centre for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia;
| | - Ilya Gordeychuk
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 119991 Moscow, Russia; (E.B.); (D.A.); (G.F.); (I.G.)
- Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia;
| | - Joel M. Palefsky
- Division of Infectious Diseases, Department of Medicine, University of California, San Francisco, CA 94143, USA; (S.C.); (J.M.P.)
| | - Maria Isaguliants
- Institute of Microbiology and Virology, Riga Stradins University, LV-1007 Riga, Latvia
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| |
Collapse
|
20
|
Sahl RE, Patsi I, Hansen MT, Rømer T, Frandsen J, Rasmusen HK, Ingersen A, Poulsen SS, Dela F, Larsen S, Helge JW. Prolonged Endurance Exercise Increases Macrophage Content and Mitochondrial Respiration in Adipose Tissue in Trained Men. J Clin Endocrinol Metab 2024; 109:e799-e808. [PMID: 37643899 DOI: 10.1210/clinem/dgad509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND The aim of this study was to investigate the effect of prolonged endurance exercise on adipose tissue inflammation markers and mitochondrial respiration in younger and older men. METHODS "Young" (aged 30 years, n = 7) and "old" (aged 65 years, n = 7) trained men were exposed to an exercise intervention of 15 consecutive days biking 7 to 9 hours/day at 63% and 65% of maximal heart rate (young and old, respectively), going from Copenhagen, Denmark to Palermo, Italy. Adipose tissue was sampled from both the gluteal and abdominal depot before and after the intervention. Mitochondrial respiration was measured by high-resolution respirometry, and adipose inflammation was assessed by immunohistochemical staining of paraffin embedded sections. RESULTS An increased number of CD163+ macrophages was observed in both the gluteal and abdominal depot (P < .01). In addition, an increased mitochondrial respiration was observed in the abdominal adipose tissue from men in the young group with complex I (CIp) stimulated respiration, complex I + II (CI+IIp) stimulated respiration and the capacity of the electron transport system (ETS) (P < .05), and in the older group an increase in CIp and CI+IIp stimulated respiration (P < .05) was found. CONCLUSION Overall, we found a positive effect of prolonged endurance exercise on adipose tissue inflammation markers and mitochondrial respiration in both young and old trained men, and no sign of attenuated function in adipose tissue with age.
Collapse
Affiliation(s)
- Ronni Eg Sahl
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Ioanna Patsi
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Mikkel Thunestvedt Hansen
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Tue Rømer
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Jacob Frandsen
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Hanne Kruuse Rasmusen
- Department of Cardiology, Bispebjerg-Frederiksberg University Hospital, 2400 Copenhagen NV, Denmark
| | - Arthur Ingersen
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Steen Seier Poulsen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Flemming Dela
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
- Department of Geriatrics, Bispebjerg-Frederiksberg University Hospital, 2400 Copenhagen NV, Denmark
| | - Steen Larsen
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
- Clinical Research Centre, Medical University of Bialystok, 15-351 Bialystok, Poland
| | - Jørn Wulff Helge
- Department of Biomedical Sciences, Xlab, Center for Healthy Aging, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| |
Collapse
|
21
|
Clarke RA, Govindaraju H, Beretta M, Olzomer E, Lawther AJ, Walker AK, Fang Z, Eapen V, Hyams TC, Killingsworth M, Bridge W, Turner N, Siddiqui KS. Immp2l Enhances the Structure and Function of Mitochondrial Gpd2 Dehydrogenase. Int J Mol Sci 2024; 25:990. [PMID: 38256063 PMCID: PMC10815762 DOI: 10.3390/ijms25020990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/25/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
'Inner mitochondrial membrane peptidase 2 like' (IMMP2L) is a nuclear-encoded mitochondrial peptidase that has been conserved through evolutionary history, as has its target enzyme, 'mitochondrial glycerol phosphate dehydrogenase 2' (GPD2). IMMP2L is known to cleave the mitochondrial transit peptide from GPD2 and another nuclear-encoded mitochondrial respiratory-related protein, cytochrome C1 (CYC1). However, it is not known whether IMMP2L peptidase activates or alters the activity or respiratory-related functions of GPD2 or CYC1. Previous investigations found compelling evidence of behavioural change in the Immp2lKD-/- KO mouse, and in this study, EchoMRI analysis found that the organs of the Immp2lKD-/- KO mouse were smaller and that the KO mouse had significantly less lean mass and overall body weight compared with wildtype littermates (p < 0.05). Moreover, all organs analysed from the Immp2lKD-/- KO had lower relative levels of mitochondrial reactive oxygen species (mitoROS). The kidneys of the Immp2lKD-/- KO mouse displayed the greatest decrease in mitoROS levels that were over 50% less compared with wildtype litter mates. Mitochondrial respiration was also lowest in the kidney of the Immp2lKD-/- KO mouse compared with other tissues when using succinate as the respiratory substrate, whereas respiration was similar to the wildtype when glutamate was used as the substrate. When glycerol-3-phosphate (G3P) was used as the substrate for Gpd2, we observed ~20% and ~7% respective decreases in respiration in female and male Immp2lKD-/- KO mice over time. Together, these findings indicate that the respiratory-related functions of mGpd2 and Cyc1 have been compromised to different degrees in different tissues and genders of the Immp2lKD-/- KO mouse. Structural analyses using AlphaFold2-Multimer further predicted that the interaction between Cyc1 and mitochondrial-encoded cytochrome b (Cyb) in Complex III had been altered, as had the homodimeric structure of the mGpd2 enzyme within the inner mitochondrial membrane of the Immp2lKD-/- KO mouse. mGpd2 functions as an integral component of the glycerol phosphate shuttle (GPS), which positively regulates both mitochondrial respiration and glycolysis. Interestingly, we found that nonmitochondrial respiration (NMR) was also dramatically lowered in the Immp2lKD-/- KO mouse. Primary mouse embryonic fibroblast (MEF) cell lines derived from the Immp2lKD-/- KO mouse displayed a ~27% decrease in total respiration, comprising a ~50% decrease in NMR and a ~12% decrease in total mitochondrial respiration, where the latter was consistent with the cumulative decreases in substrate-specific mediated mitochondrial respiration reported here. This study is the first to report the role of Immp2l in enhancing Gpd2 structure and function, mitochondrial respiration, nonmitochondrial respiration, organ size and homeostasis.
Collapse
Affiliation(s)
- Raymond A. Clarke
- Discipline of Psychiatry, University of New South Wales, Sydney, NSW 2052, Australia; (A.K.W.); (V.E.)
- Ingham Institute for Applied Medical Research, Sydney, NSW 2170, Australia; (Z.F.); (T.C.H.); (M.K.)
- Academic Unit of Infant Child and Adolescent Services (AUCS), South Western Sydney Local Health District, Liverpool, NSW 2170, Australia
| | - Hemna Govindaraju
- Department of Pharmacology, School of Biomedical Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (H.G.); (N.T.)
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Martina Beretta
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (M.B.); (E.O.); (W.B.)
| | - Ellen Olzomer
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (M.B.); (E.O.); (W.B.)
| | - Adam J. Lawther
- Laboratory of ImmunoPsychiatry, Neuroscience Research Australia, Randwick, NSW 2031, Australia;
| | - Adam K. Walker
- Discipline of Psychiatry, University of New South Wales, Sydney, NSW 2052, Australia; (A.K.W.); (V.E.)
- Laboratory of ImmunoPsychiatry, Neuroscience Research Australia, Randwick, NSW 2031, Australia;
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Zhiming Fang
- Ingham Institute for Applied Medical Research, Sydney, NSW 2170, Australia; (Z.F.); (T.C.H.); (M.K.)
| | - Valsamma Eapen
- Discipline of Psychiatry, University of New South Wales, Sydney, NSW 2052, Australia; (A.K.W.); (V.E.)
- Ingham Institute for Applied Medical Research, Sydney, NSW 2170, Australia; (Z.F.); (T.C.H.); (M.K.)
- Academic Unit of Infant Child and Adolescent Services (AUCS), South Western Sydney Local Health District, Liverpool, NSW 2170, Australia
| | - Tzipi Cohen Hyams
- Ingham Institute for Applied Medical Research, Sydney, NSW 2170, Australia; (Z.F.); (T.C.H.); (M.K.)
| | - Murray Killingsworth
- Ingham Institute for Applied Medical Research, Sydney, NSW 2170, Australia; (Z.F.); (T.C.H.); (M.K.)
- NSW Health Pathology, Liverpool Hospital Campus, Liverpool, NSW 2107, Australia
| | - Wallace Bridge
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (M.B.); (E.O.); (W.B.)
| | - Nigel Turner
- Department of Pharmacology, School of Biomedical Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (H.G.); (N.T.)
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Khawar Sohail Siddiqui
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia; (M.B.); (E.O.); (W.B.)
| |
Collapse
|
22
|
Hogg M, Wolfschmitt EM, Wachter U, Zink F, Radermacher P, Vogt JA. Ex Vivo 13C-Metabolic Flux Analysis of Porcine Circulating Immune Cells Reveals Cell Type-Specific Metabolic Patterns and Sex Differences in the Pentose Phosphate Pathway. Biomolecules 2024; 14:98. [PMID: 38254698 PMCID: PMC10813356 DOI: 10.3390/biom14010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/08/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
In general, females present with stronger immune responses than males, but scarce data are available on sex-specific differences in immunometabolism. In this study, we characterized porcine peripheral blood mononuclear cell (PBMC) and granulocyte energy metabolism using a Bayesian 13C-metabolic flux analysis, which allowed precise determination of the glycolytic, pentose phosphate pathway (PPP), and tricarboxylic acid cycle (TCA) fluxes, together with an assessment of the superoxide anion radical (O2•-) production and mitochondrial O2 consumption. A principal component analysis allowed for identifying the cell type-specific patterns of metabolic plasticity. PBMCs displayed higher TCA cycle activity, especially glutamine-derived aspartate biosynthesis, which was directly related to mitochondrial respiratory activity and inversely related to O2•- production. In contrast, the granulocytes mainly utilized glucose via glycolysis, which was coupled to oxidative PPP utilization and O2•- production rates. The granulocytes of the males had higher oxidative PPP fluxes compared to the females, while the PBMCs of the females displayed higher non-oxidative PPP fluxes compared to the males associated with the T helper cell (CD3+CD4+) subpopulation of PBMCs. The observed sex-specific differences were not directly attributable to sex steroid plasma levels, but we detected an inverse correlation between testosterone and aldosterone plasma levels and showed that aldosterone levels were related with non-oxidative PPP fluxes of both cell types.
Collapse
Affiliation(s)
- Melanie Hogg
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89081 Ulm, Germany; (E.-M.W.); (U.W.); (F.Z.); (P.R.); (J.A.V.)
| | | | | | | | | | | |
Collapse
|
23
|
Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
Collapse
Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
| |
Collapse
|
24
|
Ngamjariyawat A, Cen J, Wang X, Welsh N. GDF15 Protects Insulin-Producing Beta Cells against Pro-Inflammatory Cytokines and Metabolic Stress via Increased Deamination of Intracellular Adenosine. Int J Mol Sci 2024; 25:801. [PMID: 38255875 PMCID: PMC10815691 DOI: 10.3390/ijms25020801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
It has been proposed that antidiabetic drugs, such as metformin and imatinib, at least in part, promote improved glucose tolerance in type 2 diabetic patients via increased production of the inflammatory cytokine GDF15. This is supported by studies, performed in rodent cell lines and mouse models, in which the addition or production of GDF15 improved beta-cell function and survival. The aim of the present study was to determine whether human beta cells produce GDF15 in response to antidiabetic drugs and, if so, to further elucidate the mechanisms by which GDF15 modulates the function and survival of such cells. The effects and expression of GDF15 were analyzed in human insulin-producing EndoC-betaH1 cells and human islets. We observed that alpha and beta cells exhibit considerable heterogeneity in GDF15 immuno-positivity. The predominant form of GDF15 present in islet and EndoC-betaH1 cells was pro-GDF15. Imatinib, but not metformin, increased pro-GDF15 levels in EndoC-betaH1 cells. Under basal conditions, exogenous GDF15 increased human islet oxygen consumption rates. In EndoC-betaH1 cells and human islets, exogenous GDF15 partially ameliorated cytokine- or palmitate + high-glucose-induced loss of function and viability. GDF15-induced cell survival was paralleled by increased inosine levels, suggesting a more efficient disposal of intracellular adenosine. Knockdown of adenosine deaminase, the enzyme that converts adenosine to inosine, resulted in lowered inosine levels and loss of protection against cytokine- or palmitate + high-glucose-induced cell death. It is concluded that imatinib-induced GDF15 production may protect human beta cells partially against inflammatory and metabolic stress. Furthermore, it is possible that the GDF15-mediated activation of adenosine deaminase and the increased disposal of intracellular adenosine participate in protection against beta-cell death.
Collapse
Affiliation(s)
- Anongnad Ngamjariyawat
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Box 571, SE-751 23 Uppsala, Sweden; (A.N.); (J.C.); (X.W.)
- Division of Anatomy, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
| | - Jing Cen
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Box 571, SE-751 23 Uppsala, Sweden; (A.N.); (J.C.); (X.W.)
| | - Xuan Wang
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Box 571, SE-751 23 Uppsala, Sweden; (A.N.); (J.C.); (X.W.)
| | - Nils Welsh
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Box 571, SE-751 23 Uppsala, Sweden; (A.N.); (J.C.); (X.W.)
| |
Collapse
|
25
|
Vijayan M, Reddy PH. Unveiling the Role of Novel miRNA PC-5P-12969 in Alleviating Alzheimer's Disease. J Alzheimers Dis 2024; 98:1329-1348. [PMID: 38552115 DOI: 10.3233/jad-231281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Background The intricate and complex molecular mechanisms that underlie the progression of Alzheimer's disease (AD) have prompted a concerted and vigorous research endeavor aimed at uncovering potential avenues for therapeutic intervention. Objective This study aims to elucidate the role of miRNA PC-5P-12969 in the pathogenesis of AD. Methods We assessed the differential expression of miRNA PC-5P-12969 in postmortem AD brains, AD animal and cell models using real-time reverse-transcriptase RT-PCR, we also checked the gene and protein expression of GSK3α and APP. Results Our investigation revealed a notable upregulation of miRNA PC-5P-12969 in postmortem brains of AD patients, in transgenic mouse models of AD, and in mutant APP overexpressing-HT22 cells. Additionally, our findings indicate that overexpression of miRNA PC-5P-12969 exerts a protective effect on cell survival, while concurrently mitigating apoptotic cell death. Further-more, we established a robust and specific interaction between miRNA PC-5P-12969 and GSK3α. Our luciferase reporter assays provided confirmation of the binding between miRNA PC-5P-12969 and the 3'-UTR of the GSK3α gene. Manipulation of miRNA PC-5P-12969 levels in cellular models of AD yielded noteworthy alterations in the gene and protein expression levels of both GSK3α and APP. Remarkably, the manipulation of miRNA PC-5P-12969 levels yielded significant enhancements in mitochondrial respiration and ATP production, concurrently with a reduction in mitochondrial fragmentation, thus unveiling a potential regulatory role of miRNA PC-5P-12969 in these vital cellular processes. Conclusions In summary, this study sheds light on the crucial role of miRNA PC-5P-12969 and its direct interaction with GSK3α in the context of AD.
Collapse
Affiliation(s)
- Murali Vijayan
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Pharmacology and Neuroscience Department, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Neurology Department, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Speech, Language and Hearing Sciences Departments, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Public Health, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Nutritional Sciences Department, Texas Tech University, Lubbock, TX, USA
| |
Collapse
|
26
|
Kubala JM, Laursen KB, Schreiner R, Williams RM, van der Mijn JC, Crowley MJ, Mongan NP, Nanus DM, Heller DA, Gudas LJ. NDUFA4L2 reduces mitochondrial respiration resulting in defective lysosomal trafficking in clear cell renal cell carcinoma. Cancer Biol Ther 2023; 24:2170669. [PMID: 36722045 PMCID: PMC9897797 DOI: 10.1080/15384047.2023.2170669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/23/2022] [Indexed: 02/02/2023] Open
Abstract
In clear cell renal cell carcinoma (ccRCC), activation of hypoxic signaling induces NADH dehydrogenase (ubiquinone) 1 alpha subcomplex, 4-like 2 (NDUFA4L2) expression. Over 90% of ccRCCs exhibit overexpression of NDUFA4L2, which we previously showed contributes to ccRCC proliferation and survival. The function of NDUFA4L2 in ccRCC has not been fully elucidated. NDUFA4L2 was reported to reduce mitochondrial respiration via mitochondrial complex I inhibition. We found that NDUFA4L2 expression in human ccRCC cells increases the extracellular acidification rate, indicative of elevated glycolysis. Conversely, NDUFA4L2 expression in non-cancerous kidney epithelial cells decreases oxygen consumption rate while increasing extracellular acidification rate, suggesting that a Warburg-like effect is induced by NDUFA4L2 alone. We performed mass-spectrometry (MS)-based proteomics of NDUFA4L2 associated complexes. Comparing RCC4-P (parental) ccRCC cells with RCC4 in which NDUFA4L2 is knocked out by CRISPR-Cas9 (RCC4-KO-643), we identified 3,215 proteins enriched in the NDUFA4L2 immunoprecipitates. Among the top-ranking pathways were "Metabolic Reprogramming in Cancer" and "Glycolysis Activation in Cancer (Warburg Effect)." We also show that NDUFA4L2 enhances mitochondrial fragmentation, interacts with lysosomes, and increases mitochondrial-lysosomal associations, as assessed by high-resolution fluorescence microscopy and live cell imaging. We identified 161 lysosomal proteins, including Niemann-Pick Disease Type C Intracellular Cholesterol Transporters 1 and 2 (NPC1, NPC2), that are associated with NDUFA4L2 in RCC4-P cells. RCC4-P cells have larger and decreased numbers of lysosomes relative to RCC4 NDUFA4L2 knockout cells. These findings suggest that NDUFA4L2 regulates mitochondrial-lysosomal associations and potentially lysosomal size and abundance. Consequently, NDUFA4L2 may regulate not only mitochondrial, but also lysosomal functions in ccRCC.
Collapse
Affiliation(s)
- Jaclyn M. Kubala
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | | | - Ryan Schreiner
- Division of Regenerative Medicine Research, Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Ryan M. Williams
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Biomedical Engineering, the City College of New York, New York, NY, USA
| | | | - Michael J. Crowley
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA
| | - Nigel P. Mongan
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
- Faculty of Medicine and Health Sciences, Center for Cancer Sciences, University of Nottingham, Sutton Bonington Campus, Loughborough, UK
| | - David M. Nanus
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Department of Urology; New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Daniel A. Heller
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA
| | - Lorraine J. Gudas
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- Department of Urology; New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| |
Collapse
|
27
|
Abele N, Münz F, Zink F, Gröger M, Hoffmann A, Wolfschmitt EM, Hogg M, Calzia E, Waller C, Radermacher P, Merz T. Relation of Plasma Catecholamine Concentrations and Myocardial Mitochondrial Respiratory Activity in Anesthetized and Mechanically Ventilated, Cardiovascular Healthy Swine. Int J Mol Sci 2023; 24:17293. [PMID: 38139121 PMCID: PMC10743631 DOI: 10.3390/ijms242417293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Chronic heart failure is associated with reduced myocardial β-adrenergic receptor expression and mitochondrial function. Since these data coincide with increased plasma catecholamine levels, we investigated the relation between myocardial β-receptor expression and mitochondrial respiratory activity under conditions of physiological catecholamine concentrations. This post hoc analysis used material of a prospective randomized, controlled study on 12 sexually mature (age 20-24 weeks) Early Life Stress or control pigs (weaning at day 21 and 28-35 after birth, respectively) of either sex. Measurements in anesthetized, mechanically ventilated, and instrumented animals comprised serum catecholamine (liquid-chromatography/tandem-mass-spectrometry) and 8-isoprostane levels, whole blood superoxide anion concentrations (electron spin resonance), oxidative DNA strand breaks (tail moment in the "comet assay"), post mortem cardiac tissue mitochondrial respiration, and immunohistochemistry (β2-adrenoreceptor, mitochondrial respiration complex, and nitrotyrosine expression). Catecholamine concentrations were inversely related to myocardial mitochondrial respiratory activity and β2-adrenoceptor expression, whereas there was no relation to mitochondrial respiratory complex expression. Except for a significant, direct, non-linear relation between DNA damage and noradrenaline levels, catecholamine concentrations were unrelated to markers of oxidative stress. The present study suggests that physiological variations of the plasma catecholamine concentrations, e.g., due to physical and/or psychological stress, may affect cardiac β2-adrenoceptor expression and mitochondrial respiration.
Collapse
Affiliation(s)
- Nadja Abele
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Franziska Münz
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
- Clinic for Anesthesiology and Intensive Care, Ulm University Medical Center, 89069 Ulm, Germany
| | - Fabian Zink
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Michael Gröger
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Andrea Hoffmann
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Eva-Maria Wolfschmitt
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Melanie Hogg
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Enrico Calzia
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Christiane Waller
- Clinic for Psychosomatic Medicine and Psychotherapy, Paracelsus Medical Private University, 90402 Nuremberg, Germany;
| | - Peter Radermacher
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
| | - Tamara Merz
- Institute for Anesthesiological Pathophysiology and Process Engineering, Ulm University Medical Center, 89069 Ulm, Germany; (N.A.); (F.Z.); (M.G.); (A.H.); (E.-M.W.); (M.H.); (E.C.)
- Clinic for Anesthesiology and Intensive Care, Ulm University Medical Center, 89069 Ulm, Germany
| |
Collapse
|
28
|
Liu S, Benito-Martin A, Pelissier Vatter FA, Hanif SZ, Liu C, Bhardwaj P, Sethupathy P, Farghli AR, Piloco P, Paik P, Mushannen M, Dong X, Otterburn DM, Cohen L, Bareja R, Krumsiek J, Cohen-Gould L, Calto S, Spector JA, Elemento O, Lyden DC, Brown KA. Breast adipose tissue-derived extracellular vesicles from obese women alter tumor cell metabolism. EMBO Rep 2023; 24:e57339. [PMID: 37929643 DOI: 10.15252/embr.202357339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023] Open
Abstract
Breast adipose tissue is an important contributor to the obesity-breast cancer link. Extracellular vesicles (EVs) are nanosized particles containing selective cargo, such as miRNAs, that act locally or circulate to distant sites to modulate target cell functions. Here, we find that long-term education of breast cancer cells with EVs obtained from breast adipose tissue of women who are overweight or obese (O-EVs) results in increased proliferation. RNA-seq analysis of O-EV-educated cells demonstrates increased expression of genes involved in oxidative phosphorylation, such as ATP synthase and NADH: ubiquinone oxidoreductase. O-EVs increase respiratory complex protein expression, mitochondrial density, and mitochondrial respiration in tumor cells. The mitochondrial complex I inhibitor metformin reverses O-EV-induced cell proliferation. Several miRNAs-miR-155-5p, miR-10a-3p, and miR-30a-3p-which promote mitochondrial respiration and proliferation, are enriched in O-EVs relative to EVs from lean women. O-EV-induced proliferation and mitochondrial activity are associated with stimulation of the Akt/mTOR/P70S6K pathway, and are reversed upon silencing of P70S6K. This study reveals a new facet of the obesity-breast cancer link with human breast adipose tissue-derived EVs causing metabolic reprogramming of breast cancer cells.
Collapse
Affiliation(s)
- Shuchen Liu
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, China
| | - Alberto Benito-Martin
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Facultad de Medicina, Unidad de Investigación Biomédica, Universidad Alfonso X el Sabio (UAX), Madrid, Spain
| | - Fanny A Pelissier Vatter
- Departments of Pediatrics and Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, USA
| | - Sarah Z Hanif
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Catherine Liu
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Priya Bhardwaj
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Alaa R Farghli
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Phoebe Piloco
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Paul Paik
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Malik Mushannen
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Xue Dong
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | | | - Leslie Cohen
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Rohan Bareja
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Jan Krumsiek
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Leona Cohen-Gould
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, USA
- Core Laboratories Center, Weill Cornell Medicine, New York, NY, USA
| | - Samuel Calto
- Department of Cognitive Science, University of California San Diego, La Jolla, CA, USA
| | - Jason A Spector
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Olivier Elemento
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - David C Lyden
- Departments of Pediatrics and Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, USA
| | - Kristy A Brown
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, Kansas City, KS, USA
| |
Collapse
|
29
|
Sundaram VK, Schütza V, Schröter NH, Backhaus A, Bilsing A, Joneck L, Seelbach A, Mutschler C, Gomez-Sanchez JA, Schäffner E, Sánchez EE, Akkermann D, Paul C, Schwagarus N, Müller S, Odle A, Childs G, Ewers D, Kungl T, Sitte M, Salinas G, Sereda MW, Nave KA, Schwab MH, Ost M, Arthur-Farraj P, Stassart RM, Fledrich R. Adipo-glial signaling mediates metabolic adaptation in peripheral nerve regeneration. Cell Metab 2023; 35:2136-2152.e9. [PMID: 37989315 PMCID: PMC10722468 DOI: 10.1016/j.cmet.2023.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 08/21/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023]
Abstract
The peripheral nervous system harbors a remarkable potential to regenerate after acute nerve trauma. Full functional recovery, however, is rare and critically depends on peripheral nerve Schwann cells that orchestrate breakdown and resynthesis of myelin and, at the same time, support axonal regrowth. How Schwann cells meet the high metabolic demand required for nerve repair remains poorly understood. We here report that nerve injury induces adipocyte to glial signaling and identify the adipokine leptin as an upstream regulator of glial metabolic adaptation in regeneration. Signal integration by leptin receptors in Schwann cells ensures efficient peripheral nerve repair by adjusting injury-specific catabolic processes in regenerating nerves, including myelin autophagy and mitochondrial respiration. Our findings propose a model according to which acute nerve injury triggers a therapeutically targetable intercellular crosstalk that modulates glial metabolism to provide sufficient energy for successful nerve repair.
Collapse
Affiliation(s)
- Venkat Krishnan Sundaram
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Vlad Schütza
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | | | - Aline Backhaus
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Annika Bilsing
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Lisa Joneck
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Anna Seelbach
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Clara Mutschler
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, UK
| | - Jose A Gomez-Sanchez
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain; Instituto de Neurociencias CSIC-UMH, San Juan de Alicante, Spain
| | - Erik Schäffner
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | | | - Dagmar Akkermann
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Christina Paul
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Nancy Schwagarus
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Silvana Müller
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Angela Odle
- Instituto de Neurociencias CSIC-UMH, San Juan de Alicante, Spain
| | - Gwen Childs
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Markham, AR, USA
| | - David Ewers
- Max Planck Institute of Experimental Medicine, Göttingen, Germany; Klinik für Neurologie, Universitätsmedizin Göttingen (UMG), Göttingen, Germany
| | - Theresa Kungl
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Maren Sitte
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Gabriela Salinas
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Michael W Sereda
- Max Planck Institute of Experimental Medicine, Göttingen, Germany; Klinik für Neurologie, Universitätsmedizin Göttingen (UMG), Göttingen, Germany
| | - Klaus-Armin Nave
- Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - Markus H Schwab
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Mario Ost
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Peter Arthur-Farraj
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, UK
| | - Ruth M Stassart
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany.
| | | |
Collapse
|
30
|
CHO EUNHAN, STAMPLEY JAMES, WALL RACHEL, MATTHEWS RACHEL, ZUNICA ELIZABETH, BROWN JUSTINC, JOHANNSEN NEILM, IRVING BRIANA, SPIELMANN GUILLAUME. Acute Exercise Increases NK Cell Mitochondrial Respiration and Cytotoxicity against Triple-Negative Breast Cancer Cells under Hypoxic Conditions. Med Sci Sports Exerc 2023; 55:2132-2142. [PMID: 37436930 PMCID: PMC10662621 DOI: 10.1249/mss.0000000000003250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
PURPOSE Triple-negative breast cancer (TNBC) is an aggressive, highly metastatic malignancy with high recurrence rates. Hypoxia is a hallmark of the TNBC tumor microenvironment, which promotes tumor growth while impairing natural killer (NK) cell cytotoxic functions. Although acute exercise improves NK cell function under normoxic conditions, the effect of exercise on NK cell cytotoxic functions under hypoxic conditions mimicking O 2 tensions observed in solid tumors is unknown. METHODS The cytotoxic functions of resting and postexercise NK cells isolated from thirteen young inactive healthy women were assessed against breast cancer cells expressing different levels of hormone receptors (MCF-7 and MDA-MB-231) under normoxic and hypoxic conditions. Mitochondrial respiration and H 2 O 2 efflux rates of the TNBC-activated NK cells were assessed via high-resolution respirometry. RESULTS Under hypoxia, postexercise NK cells exhibited greater killing of TNBC than resting NK cells. Further, postexercise NK cells were more likely to kill TNBC under hypoxia than normoxic conditions. In addition, mitochondrial respiration associated with oxidative (OXPHOS) capacity of TNBC-activated NK cells was greater in postexercise cells than resting cells under normoxia, but not under hypoxia. Finally, acute exercise was associated with reduced mitochondrial H 2 O 2 efflux by NK cells in both conditions. CONCLUSIONS Together, we present crucial interrelationships between hypoxia and exercise-induced changes in NK cell functions against TNBC cells. By modulating their mitochondrial bioenergetic functions, we postulate that acute exercise improves NK cell function under hypoxic conditions. Specifically, NK cell O 2 and H 2 O 2 flow (pmol·s -1 ·million NK cells -1 ) changes in response to 30-min cycling suggest that exercise primes NK cell tumor killing by reducing mitochondrial oxidative stress and, thus, rescuing their function when exposed to harsh hypoxic environments as observed in the microenvironment of breast solid tumors.
Collapse
Affiliation(s)
- EUNHAN CHO
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
| | - JAMES STAMPLEY
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
| | - RACHEL WALL
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
| | - RACHEL MATTHEWS
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
| | | | | | - NEIL M. JOHANNSEN
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - BRIAN A. IRVING
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
- Pennington Biomedical Research Center, Baton Rouge, LA
| | - GUILLAUME SPIELMANN
- School of Kinesiology, Louisiana State University, Baton Rouge, LA
- Pennington Biomedical Research Center, Baton Rouge, LA
| |
Collapse
|
31
|
Aggarwal R, Shao A, Potel KN, So SW, Swingen CM, Wright CA, Hocum Stone LL, McFalls EO, Butterick TA, Kelly RF. Stem cell-derived exosome patch with coronary artery bypass graft restores cardiac function in chronically ischemic porcine myocardium. J Thorac Cardiovasc Surg 2023; 166:e512-e530. [PMID: 37482241 DOI: 10.1016/j.jtcvs.2023.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/01/2023] [Accepted: 07/16/2023] [Indexed: 07/25/2023]
Abstract
OBJECTIVE This study aimed to investigate whether or not the application of a stem cell-derived exosome-laden collagen patch (EXP) during coronary artery bypass grafting (CABG) can recover cardiac function by modulating mitochondrial bioenergetics and myocardial inflammation in hibernating myocardium (HIB), which is defined as myocardium with reduced blood flow and function that retains viability and variable contractile reserve. METHODS In vitro methods involved exposing H9C2 cardiomyocytes to hypoxia followed by normoxic coculture with porcine mesenchymal stem cells. Mitochondrial respiration was measured using Seahorse assay. GW4869, an exosomal release antagonist, was used to determine the effect of mesenchymal stem cells-derived exosomal signaling on cardiomyocyte recovery. Total exosomal RNA was isolated and differential micro RNA expression determined by sequencing. In vivo studies comprised 48 Yorkshire-Landrace juvenile swine (6 normal controls, 17 HIB, 19 CABG, and 6 CABG + EXP), which were compared for physiologic and metabolic changes. HIB was created by placing a constrictor on the proximal left anterior descending artery, causing significant stenosis but preserved viability by 12 weeks. CABG was performed with or without mesenchymal stem cells-derived EXP application and animals recovered for 4 weeks. Before terminal procedure, cardiac magnetic resonance imaging at rest, and with low-dose dobutamine, assessed diastolic relaxation, systolic function, graft patency, and myocardial viability. Tissue studies of inflammation, fibrosis, and mitochondrial morphology were performed posttermination. RESULTS In vitro data demonstrated improved cardiomyocyte mitochondrial respiration upon coculture with MSCs that was blunted when adding the exosomal antagonist GW4869. RNA sequencing identified 8 differentially expressed micro RNAs in normoxia vs hypoxia-induced exosomes that may modulate the expression of key mitochondrial (peroxisome proliferator-activator receptor gamma coactivator 1-alpha and adenosine triphosphate synthase) and inflammatory mediators (nuclear factor kappa-light-chain enhancer of activated B cells, interferon gamma, and interleukin 1β). In vivo animal magnetic resonance imaging studies demonstrated regional systolic function and diastolic relaxation to be improved with CABG + EXP compared with HIB (P = .02 and P = .02, respectively). Histologic analysis showed increased interstitial fibrosis and inflammation in HIB compared with CABG + EXP. Electron microscopy demonstrated increased mitochondrial area, perimeter, and aspect ratio in CABG + EXP compared with HIB or CABG alone (P < .0001). CONCLUSIONS Exosomes recovered cardiomyocyte mitochondrial respiration and reduced myocardial inflammation through paracrine signaling, resulting in improved cardiac function.
Collapse
Affiliation(s)
- Rishav Aggarwal
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn
| | - Annie Shao
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn
| | - Koray N Potel
- School of Medicine, Dentistry, and Biomedical Sciences, Queen's University Belfast, Belfast, United Kingdom
| | - Simon W So
- Department of Research Service, Center for Veterans Research and Education, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minn; Department of Neuroscience, University of Minnesota, Minneapolis, Minn
| | - Cory M Swingen
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn
| | - Christin A Wright
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn
| | - Laura L Hocum Stone
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn
| | - Edward O McFalls
- Division of Cardiology, Richmond VA Medical Center, Richmond, Va
| | - Tammy A Butterick
- Department of Research Service, Center for Veterans Research and Education, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minn; Department of Neuroscience, University of Minnesota, Minneapolis, Minn
| | - Rosemary F Kelly
- Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minn.
| |
Collapse
|
32
|
Kugler BA, Cao X, Wenger M, Franczak E, McCoin CS, Von Schulze A, Morris EM, Thyfault JP. Divergence in aerobic capacity influences hepatic and systemic metabolic adaptations to bile acid sequestrant and short-term high-fat/sucrose feeding in rats. Am J Physiol Regul Integr Comp Physiol 2023; 325:R712-R724. [PMID: 37811712 DOI: 10.1152/ajpregu.00133.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/29/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
High versus low aerobic capacity significantly impacts the risk for metabolic diseases. Rats selectively bred for high or low intrinsic aerobic capacity differently modify hepatic bile acid metabolism in response to high-fat diets (HFDs). Here we tested if a bile acid sequestrant would alter hepatic and whole body metabolism differently in rats with high and low aerobic capacity fed a 1-wk HFD. Male rats (8 mo of age) that were artificially selected to be high (HCR) and low-capacity runners (LCR) with divergent intrinsic aerobic capacities were transitioned from a low-fat diet (LFD, 10% fat) to an HFD (45% fat) with or without a bile acid sequestrant (BA-Seq, 2% cholestyramine resin) for 7 days while maintained in an indirect calorimetry system. HFD + BA-Seq increased fecal excretion of lipids and bile acids and prevented weight and fat mass gain in both strains. Interestingly, HCR rats had increased adaptability to enhance fecal bile acid and lipid loss, resulting in more significant energy loss than their LCR counterpart. In addition, BA-Seq induced a greater expression of hepatic CYP7A1 gene expression, the rate-limiting enzyme of bile acid synthesis in HCR rats both on HFD and HFD + BA-Seq diets. HCR displayed a more significant reduction of RQ in response to HFD than LCR, but HFD + BA-Seq lowered RQ in both groups compared with HFD alone, demonstrating a pronounced impact on metabolic flexibility. In conclusion, BA-Seq provides uniform metabolic benefits for metabolic flexibility and adiposity, but rats with higher aerobic capacity display adaptability for hepatic bile acid metabolism.NEW & NOTEWORTHY The administration of bile acid sequestrant (BA-Seq) has uniform metabolic benefits in terms of metabolic flexibility and adiposity in rats with high and low aerobic capacity. However, rats with higher aerobic capacity demonstrate greater adaptability in hepatic bile acid metabolism, resulting in increased fecal bile acid and lipid loss, as well as enhanced fecal energy loss.
Collapse
Affiliation(s)
- Benjamin A Kugler
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Xin Cao
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Madi Wenger
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Edziu Franczak
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas City Veterans Affairs Medical Center, Kansas City, Missouri, United States
| | - Colin S McCoin
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Center for Children's Healthy Lifestyles and Nutrition, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas City Veterans Affairs Medical Center, Kansas City, Missouri, United States
| | - Alex Von Schulze
- Stowers Research Institute, Kansas City, Missouri, United States
| | - E Matthew Morris
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Center for Children's Healthy Lifestyles and Nutrition, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
| | - John P Thyfault
- Department of Cell Biology and Physiology, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas Center for Metabolism and Obesity Research, Kansas City, Missouri, United States
- Center for Children's Healthy Lifestyles and Nutrition, Kansas City, Missouri, United States
- Department of Internal Medicine, Division of Endocrinology and Metabolism, KU Diabetes Institute, The University of Kansas Medical Center, Kansas City, Kansas, United States
- Kansas City Veterans Affairs Medical Center, Kansas City, Missouri, United States
| |
Collapse
|
33
|
Keturakis V, Narauskaitė D, Balion Z, Gečys D, Kulkovienė G, Kairytė M, Žukauskaitė I, Benetis R, Stankevičius E, Jekabsone A. The Effect of SARS-CoV-2 Spike Protein RBD-Epitope on Immunometabolic State and Functional Performance of Cultured Primary Cardiomyocytes Subjected to Hypoxia and Reoxygenation. Int J Mol Sci 2023; 24:16554. [PMID: 38068877 PMCID: PMC10705973 DOI: 10.3390/ijms242316554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/25/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Cardio complications such as arrhythmias and myocardial damage are common in COVID-19 patients. SARS-CoV-2 interacts with the cardiovascular system primarily via the ACE2 receptor. Cardiomyocyte damage in SARS-CoV-2 infection may stem from inflammation, hypoxia-reoxygenation injury, and direct toxicity; however, the precise mechanisms are unclear. In this study, we simulated hypoxia-reoxygenation conditions commonly seen in SARS-CoV-2-infected patients and studied the impact of the SARS-CoV-2 spike protein RBD-epitope on primary rat cardiomyocytes to gain insight into the potential mechanisms underlying COVID-19-related cardiac complications. Cell metabolic activity was evaluated with PrestoBlueTM. Gene expression of proinflammatory markers was measured by qRT-PCR and their secretion was quantified by Luminex assay. Cardiomyocyte contractility was analysed using the Myocyter plugin of ImageJ. Mitochondrial respiration was determined through Seahorse Mito Stress Test. In hypoxia-reoxygenation conditions, treatment of the SARS-CoV-2 spike RBD-epitope reduced the metabolic activity of primary cardiomyocytes, upregulated Il1β and Cxcl1 expression, and elevated GM-CSF and CCL2 cytokines secretion. Contraction time increased, while amplitude and beating frequency decreased. Acute treatment with a virus RBD-epitope inhibited mitochondrial respiration and lowered ATP production. Under ischaemia-reperfusion, the SARS-CoV-2 RBD-epitope induces cardiomyocyte injury linked to impaired mitochondrial activity.
Collapse
Affiliation(s)
- Vytenis Keturakis
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
- Department of Heart, Thoracic and Vascular Surgery, Medicine Faculty, Medical Academy, Lithuanian University of Health Sciences, 50103 Kaunas, Lithuania
| | - Deimantė Narauskaitė
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
| | - Zbigniev Balion
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
| | - Dovydas Gečys
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
- Laboratory of Molecular Cardiology, Institute of Cardiology, Lithuanian University of Health Sciences, 50103 Kaunas, Lithuania
- Institute of Pharmaceutical Technologies, Faculty of Pharmacy, Lithuanian University of Health Sciences, 50166 Kaunas, Lithuania
| | - Gabrielė Kulkovienė
- Department of Drug Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, 50166 Kaunas, Lithuania
| | - Milda Kairytė
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
| | - Ineta Žukauskaitė
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
| | - Rimantas Benetis
- Department of Heart, Thoracic and Vascular Surgery, Medicine Faculty, Medical Academy, Lithuanian University of Health Sciences, 50103 Kaunas, Lithuania
| | - Edgaras Stankevičius
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
- Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Aistė Jekabsone
- Preclinical Research Laboratory for Medicinal Products, Institute of Cardiology, Lithuanian University of Health Sciences, 50161 Kaunas, Lithuania; (V.K.)
- Institute of Pharmaceutical Technologies, Faculty of Pharmacy, Lithuanian University of Health Sciences, 50166 Kaunas, Lithuania
| |
Collapse
|
34
|
Ismaeel A, Thomas NT, McCashland M, Vechetti IJ, Edman S, Lanner JT, Figueiredo VC, Fry CS, McCarthy JJ, Wen Y, Murach KA, von Walden F. Coordinated Regulation of Myonuclear DNA Methylation, mRNA, and miRNA Levels Associates With the Metabolic Response to Rapid Synergist Ablation-Induced Skeletal Muscle Hypertrophy in Female Mice. Function (Oxf) 2023; 5:zqad062. [PMID: 38020067 PMCID: PMC10666992 DOI: 10.1093/function/zqad062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/16/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
The central dogma of molecular biology dictates the general flow of molecular information from DNA that leads to a functional cellular outcome. In skeletal muscle fibers, the extent to which global myonuclear transcriptional alterations, accounting for epigenetic and post-transcriptional influences, contribute to an adaptive stress response is not clearly defined. In this investigation, we leveraged an integrated analysis of the myonucleus-specific DNA methylome and transcriptome, as well as myonuclear small RNA profiling to molecularly define the early phase of skeletal muscle fiber hypertrophy. The analysis of myonucleus-specific mature microRNA and other small RNA species provides new directions for exploring muscle adaptation and complemented the methylation and transcriptional information. Our integrated multi-omics interrogation revealed a coordinated myonuclear molecular landscape during muscle loading that coincides with an acute and rapid reduction of oxidative metabolism. This response may favor a biosynthesis-oriented metabolic program that supports rapid hypertrophic growth.
Collapse
Affiliation(s)
- Ahmed Ismaeel
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40508, USA
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
| | - Nicholas T Thomas
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Athletic Training and Clinical Nutrition, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Mariah McCashland
- Department of Nutrition and Health Sciences, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Ivan J Vechetti
- Department of Nutrition and Health Sciences, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Sebastian Edman
- Department of Women’s and Children’s Health, Karolinska Institutet, Solna 17177, Sweden
| | - Johanna T Lanner
- Department of Physiology and Pharmacology, Karolinska Institutet, Solna 17177, Sweden
| | - Vandré C Figueiredo
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA
| | - Christopher S Fry
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Athletic Training and Clinical Nutrition, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - John J McCarthy
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40508, USA
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
| | - Yuan Wen
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40508, USA
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Division of Biomedical Informatics, Department of Internal Medicine, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Kevin A Murach
- Department of Health, Human Performance, and Recreation, Exercise Science Research Center, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ferdinand von Walden
- Department of Women’s and Children’s Health, Karolinska Institutet, Solna 17177, Sweden
| |
Collapse
|
35
|
Menail HA, Cormier SB, Léger A, Robichaud S, Hebert-Chatelain E, Lamarre SG, Pichaud N. Age-related flexibility of energetic metabolism in the honey bee Apis mellifera. FASEB J 2023; 37:e23222. [PMID: 37781970 DOI: 10.1096/fj.202300654r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/17/2023] [Accepted: 09/13/2023] [Indexed: 10/03/2023]
Abstract
The mechanisms that underpin aging are still elusive. In this study, we suggest that the ability of mitochondria to oxidize different substrates, which is known as metabolic flexibility, is involved in this process. To verify our hypothesis, we used honey bees (Apis mellifera carnica) at different ages, to assess mitochondrial oxygen consumption and enzymatic activities of key enzymes of the energetic metabolism as well as ATP5A1 content (subunit of ATP synthase) and adenylic energy charge (AEC). We also measured mRNA abundance of genes involved in mitochondrial functions and the antioxidant system. Our results demonstrated that mitochondrial respiration increased with age and favored respiration through complexes I and II of the electron transport system (ETS) while glycerol-3-phosphate (G3P) oxidation was relatively decreased. In addition, glycolytic, tricarboxylic acid cycle and ETS enzymatic activities increased, which was associated with higher ATP5A1 content and AEC. Furthermore, we detected an early decrease in the mRNA abundance of subunits of NADH ubiquinone oxidoreductase subunit B2 (NDUFB2, complex I), mitochondrial cytochrome b (CYTB, complex III) of the ETS as well as superoxide dismutase 1 and a later decrease for vitellogenin, catalase and mitochondrial cytochrome c oxidase subunit 1 (COX1, complex IV). Thus, our study suggests that the energetic metabolism is optimized with aging in honey bees, mainly through quantitative and qualitative mitochondrial changes, rather than showing signs of senescence. Moreover, aging modulated metabolic flexibility, which might reflect an underpinning mechanism that explains lifespan disparities between the different castes of worker bees.
Collapse
Affiliation(s)
- Hichem A Menail
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, Canada
| | - Simon B Cormier
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, Canada
| | - Adèle Léger
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, Canada
| | - Samuel Robichaud
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, Canada
| | - Etienne Hebert-Chatelain
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Biology, Université de Moncton, Moncton, New Brunswick, Canada
| | - Simon G Lamarre
- Department of Biology, Université de Moncton, Moncton, New Brunswick, Canada
| | - Nicolas Pichaud
- New Brunswick Centre for Precision Medicine, Moncton, New Brunswick, Canada
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, Canada
| |
Collapse
|
36
|
Toropova AA, Razuvaeva YG, Olennikov DN, Markova KV, Lemza SV. Protective effects of Leuzea uniflora ( Rhaponticum uniflorum) on the brain mitochondrial function in white rats at hypoxia/reoxygenation. Nat Prod Res 2023; 37:3878-3883. [PMID: 36495287 DOI: 10.1080/14786419.2022.2155646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/24/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
Protective effects of Leuzea uniflora (L.) Holub (Rhaponticum uniflorum (L.) DC., Asteraceae) on the white rats' brain mitochondrial function in acute hypobaric hypoxia/reoxygenation were studied. The extract of L. uniflora in the dose of 100 mg/kg was administered to animals for 14 days. The effects of the extract on the brain mitochondria respiration rate as well as on the NADH- and succinate dehydrogenase activities were determined. The extract of L. uniflora increased the oxidative phosphorylation processes coupling in brain mitochondria, namely, it significantly stimulated basal respiration, caused an increase in NADH-oxidase and succinate dehydrogenase complexes activity, increased the ATP content, reduced the lipid peroxidation intensity and improved the antioxidant state. The results obtained indicate the presence of energy-protective and antioxidant activities of L. uniflora, which are due to its ability to reduce the oxidation of biomacromolecules in hypoxia/reoxygenation.
Collapse
Affiliation(s)
- Anyuta A Toropova
- Laboratory of Bioactive Compounds Safety, Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Russia
| | - Yanina G Razuvaeva
- Laboratory of Bioactive Compounds Safety, Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Russia
| | - Daniil N Olennikov
- Laboratory of Biomedical Research, Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Russia
| | - Kristina V Markova
- Laboratory of Bioactive Compounds Safety, Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Russia
| | - Sergey V Lemza
- Laboratory of Experimental Pharmacology, Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Russia
| |
Collapse
|
37
|
Baier D, Mendrina T, Schoenhacker‐Alte B, Pirker C, Mohr T, Rusz M, Regner B, Schaier M, Sgarioto N, Raynal NJ, Nowikovsky K, Schmidt WM, Heffeter P, Meier‐Menches SM, Koellensperger G, Keppler BK, Berger W. The Lipid Metabolism as Target and Modulator of BOLD-100 Anticancer Activity: Crosstalk with Histone Acetylation. Adv Sci (Weinh) 2023; 10:e2301939. [PMID: 37752764 PMCID: PMC10646284 DOI: 10.1002/advs.202301939] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Received: 03/25/2023] [Revised: 08/18/2023] [Indexed: 09/28/2023]
Abstract
The leading first-in-class ruthenium-complex BOLD-100 currently undergoes clinical phase-II anticancer evaluation. Recently, BOLD-100 is identified as anti-Warburg compound. The present study shows that also deregulated lipid metabolism parameters characterize acquired BOLD-100-resistant colon and pancreatic carcinoma cells. Acute BOLD-100 treatment reduces lipid droplet contents of BOLD-100-sensitive but not -resistant cells. Despite enhanced glycolysis fueling lipid accumulation, BOLD-100-resistant cells reveal diminished lactate secretion based on monocarboxylate transporter 1 (MCT1) loss mediated by a frame-shift mutation in the MCT1 chaperone basigin. Glycolysis and lipid catabolism converge in the production of protein/histone acetylation substrate acetyl-coenzymeA (CoA). Mass spectrometric and nuclear magnetic resonance analyses uncover spontaneous cell-free BOLD-100-CoA adduct formation suggesting acetyl-CoA depletion as mechanism bridging BOLD-100-induced lipid metabolism alterations and histone acetylation-mediated gene expression deregulation. Indeed, BOLD-100 treatment decreases histone acetylation selectively in sensitive cells. Pharmacological targeting confirms histone de-acetylation as central mode-of-action of BOLD-100 and metabolic programs stabilizing histone acetylation as relevant Achilles' heel of acquired BOLD-100-resistant cell and xenograft models. Accordingly, histone gene expression changes also predict intrinsic BOLD-100 responsiveness. Summarizing, BOLD-100 is identified as epigenetically active substance acting via targeting several onco-metabolic pathways. Identification of the lipid metabolism as driver of acquired BOLD-100 resistance opens novel strategies to tackle therapy failure.
Collapse
Affiliation(s)
- Dina Baier
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Theresa Mendrina
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Beatrix Schoenhacker‐Alte
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Christine Pirker
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Thomas Mohr
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Joint Metabolome FacilityUniversity of Vienna and Medical University of ViennaWaehringer Str. 38Vienna1090Austria
- ScienceConsultGuntramsdorf2351Austria
| | - Mate Rusz
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
- Institute of Analytical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Str. 38Vienna1090Austria
| | - Benedict Regner
- Anna Spiegel Center of Translational ResearchDepartment of Medicine IMedical University ViennaLazarettgasse 14Vienna1090Austria
| | - Martin Schaier
- Institute of Analytical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Str. 38Vienna1090Austria
| | - Nicolas Sgarioto
- Départment de pharmacologie et physiologieFaculté de médecineCentre de recherché de l hôpitalUniversité de MontréalSaint‐Justine (7.17.020), 3175 Chemin de la Côte Ste‐CatherineQuebecH3T1C5Canada
| | - Noël J.‐M. Raynal
- Départment de pharmacologie et physiologieFaculté de médecineCentre de recherché de l hôpitalUniversité de MontréalSaint‐Justine (7.17.020), 3175 Chemin de la Côte Ste‐CatherineQuebecH3T1C5Canada
| | - Karin Nowikovsky
- Unit of Physiology and BiophysicsDepartment of Biomedical SciencesUniversity of Veterinary Medicine ViennaVeterinaerplatz 1Vienna1210Austria
| | - Wolfgang M. Schmidt
- Neuromuscular Research DepartmentCenter for Anatomy and Cell BiologyMedical University of ViennaWähringer Str. 13Vienna1090Austria
| | - Petra Heffeter
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Samuel M. Meier‐Menches
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Joint Metabolome FacilityUniversity of Vienna and Medical University of ViennaWaehringer Str. 38Vienna1090Austria
- Institute of Analytical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Str. 38Vienna1090Austria
| | - Gunda Koellensperger
- Institute of Analytical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Str. 38Vienna1090Austria
| | - Bernhard K. Keppler
- Institute of Inorganic ChemistryUniversity of ViennaWaehringer Str. 42Vienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| | - Walter Berger
- Center for Cancer Research and Comprehensive Cancer CenterMedical University ViennaBorschkegasse 8aVienna1090Austria
- Research Cluster “Translational Cancer Therapy Research”Vienna1090Austria
| |
Collapse
|
38
|
Hulett NA, Knaub LA, Hull SE, Pott GB, Peelor R, Miller BF, Shankar K, Rudolph MC, Reusch JEB, Scalzo RL. Sex Differences in the Skeletal Muscle Response to a High Fat, High Sucrose Diet in Rats. Nutrients 2023; 15:4438. [PMID: 37892512 PMCID: PMC10610114 DOI: 10.3390/nu15204438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/28/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
Men are diagnosed with type 2 diabetes at lower body mass indexes than women; the role of skeletal muscle in this sex difference is poorly understood. Type 2 diabetes impacts skeletal muscle, particularly in females who demonstrate a lower oxidative capacity compared to males. To address mechanistic differences underlying this sex disparity, we investigated skeletal muscle mitochondrial respiration in female and male rats in response to chronic high-fat, high-sugar (HFHS) diet consumption. Four-week-old Wistar Rats were fed a standard chow or HFHS diet for 14 weeks to identify sex-specific adaptations in mitochondrial respirometry and characteristics, transcriptional patterns, and protein profiles. Fat mass was greater with the HFHS diet in both sexes when controlled for body mass (p < 0.0001). Blood glucose and insulin resistance were greater in males (p = 0.01) and HFHS-fed rats (p < 0.001). HFHS-fed males had higher mitochondrial respiration compared with females (p < 0.01 sex/diet interaction). No evidence of a difference by sex or diet was found for mitochondrial synthesis, dynamics, or quality to support the mitochondrial respiration sex/diet interaction. However, transcriptomic analyses indicate sex differences in nutrient handling. Sex-specific differences occurred in PI3K/AKT signaling, PPARα/RXRα, and triacylglycerol degradation. These findings may provide insight into the clinical sex differences in body mass index threshold for diabetes development and tissue-specific progression of insulin resistance.
Collapse
Affiliation(s)
- Nicholas A. Hulett
- Division of Endocrinology, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA; (N.A.H.); (J.E.B.R.)
| | - Leslie A. Knaub
- Division of Endocrinology, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA; (N.A.H.); (J.E.B.R.)
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
| | - Sara E. Hull
- Division of Endocrinology, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA; (N.A.H.); (J.E.B.R.)
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
| | - Gregory B. Pott
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
| | - Rick Peelor
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA (B.F.M.)
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
| | - Benjamin F. Miller
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA (B.F.M.)
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
| | - Kartik Shankar
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine (UCSOM), Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Michael C. Rudolph
- Department of Physiology, Harold Hamm Diabetes Center, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Jane E. B. Reusch
- Division of Endocrinology, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA; (N.A.H.); (J.E.B.R.)
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA
| | - Rebecca L. Scalzo
- Division of Endocrinology, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA; (N.A.H.); (J.E.B.R.)
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, Department of Medicine, University of Colorado School of Medicine (UCSOM), Aurora, CO 80045, USA
| |
Collapse
|
39
|
Talati M, Brittain E, Agrawal V, Fortune N, Simon K, Shay S, Zeng X, Freeman ML, West J, Hemnes A. A potential adverse role for leptin and cardiac leptin receptor in the right ventricle in pulmonary arterial hypertension: effect of metformin is BMPR2 mutation-specific. Front Med (Lausanne) 2023; 10:1276422. [PMID: 37869164 PMCID: PMC10586504 DOI: 10.3389/fmed.2023.1276422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/15/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Pulmonary arterial hypertension is a fatal cardiopulmonary disease. Leptin, a neuroendocrine hormone released by adipose tissue, has a complex relationship with cardiovascular diseases, including PAH. Leptin is thought to be an important factor linking metabolic syndrome and cardiovascular disorders. Given the published association between metabolic syndrome and RV dysfunction in PAH, we sought to determine the association between leptin and RV dysfunction. We hypothesized that in PAH-RV, leptin influences metabolic changes via leptin receptors, which can be manipulated by metformin. Methods Plasma leptin was measured in PAH patients and healthy controls from a published trial of metformin in PAH. Leptin receptor localization was detected in RV from PAH patients, healthy controls, animal models of PH with RV dysfunction before and after metformin treatment, and cultured cardiomyocytes with two different BMPR2 mutants by performing immunohistochemical and cell fractionation studies. Functional studies were conducted in cultured cardiomyocytes to examine the role of leptin and metformin in lipid-driven mitochondrial respiration. Results In human studies, we found that plasma leptin levels were higher in PAH patients and moderately correlated with higher BMI, but not in healthy controls. Circulating leptin levels were reduced by metformin treatment, and these findings were confirmed in an animal model of RV dysfunction. Leptin receptor expression was increased in PAH-RV cardiomyocytes. In animal models of RV dysfunction and cultured cardiomyocytes with BMPR2 mutation, we found increased expression and membrane localization of the leptin receptor. In cultured cardiomyocytes with BMPR2 mutation, leptin moderately influences palmitate uptake, possibly via CD36, in a mutation-specific manner. Furthermore, in cultured cardiomyocytes, the Seahorse XFe96 Extracellular Flux Analyzer and gene expression data indicate that leptin may not directly influence lipid-driven mitochondrial respiration in BMPR2 mutant cardiomyocytes. However, metformin alone or when supplemented with leptin can improve lipid-driven mitochondrial respiration in BMPR2 mutant cardiomyocytes. The effect of metformin on lipid-driven mitochondrial respiration in cardiomyocytes is BMPR2 mutation-specific. Conclusion In PAH, increased circulating leptin can influence metabolic signaling in RV cardiomyocytes via the leptin receptor; in particular, it may alter lipid-dependent RV metabolism in combination with metformin in a mutation-specific manner and warrants further investigation.
Collapse
Affiliation(s)
- Megha Talati
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Evan Brittain
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Vineet Agrawal
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Niki Fortune
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Katie Simon
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sheila Shay
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Xiaofang Zeng
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, China
| | - Michael L. Freeman
- Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - James West
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Anna Hemnes
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| |
Collapse
|
40
|
Timganova VP, Vlasova VV, Bochkova MS, Shardina KY, Uzhviyuk SV, Khramtsov PV, Rayev MB, Zamorina SA. Effect of PEGylated Graphene Oxide Nanoparticles on the Metabolism of Jurkat Cells. DOKL BIOCHEM BIOPHYS 2023; 512:288-291. [PMID: 38093133 DOI: 10.1134/s1607672923700473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 12/18/2023]
Abstract
The effect of graphene oxide (GO) nanoparticles of 100-200 nm in size coated with linear (LP-GO) and branched (BP-GO) polyethylene glycol at concentrations of 5 and 25 μg/mL on the metabolism of Jurkat tumor cells was studied. It was found that LP-GO nanoparticles at a concentration of 25 μg/mL can enhance basal glycolysis of Jurkat T-lymphocyte tumor cell line cells, while LP-GO and BP-GO at the same concentration can reduce the indicators of compensatory glycolysis. Despite this, GO nanoparticles coated with linear and branched PEG at a concentration of 5 μg/mL do not have pronounced effects on oxidative phosphorylation and glycolysis of Jurkat cells and could therefore be safe for activated T cells.
Collapse
Affiliation(s)
- V P Timganova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia.
| | - V V Vlasova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
| | - M S Bochkova
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
- Perm State National Research University, Perm, Russia
| | - K Yu Shardina
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
| | - S V Uzhviyuk
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
| | - P V Khramtsov
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
- Perm State National Research University, Perm, Russia
| | - M B Rayev
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
- Perm State National Research University, Perm, Russia
| | - S A Zamorina
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, Perm, Russia
- Perm State National Research University, Perm, Russia
| |
Collapse
|
41
|
Batterson PM, McGowan EM, Borowik AK, Kinter MT, Miller BF, Newsom SA, Robinson MM. High-fat diet increases electron transfer flavoprotein synthesis and lipid respiration in skeletal muscle during exercise training in female mice. Physiol Rep 2023; 11:e15840. [PMID: 37857571 PMCID: PMC10587055 DOI: 10.14814/phy2.15840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/26/2023] [Accepted: 09/26/2023] [Indexed: 10/21/2023] Open
Abstract
High-fat diet (HFD) and exercise remodel skeletal muscle mitochondria. The electron transfer flavoproteins (ETF) transfer reducing equivalents from β-oxidation into the electron transfer system. Exercise may stimulate the synthesis of ETF proteins to increase lipid respiration. We determined mitochondrial remodeling for lipid respiration through ETF in the context of higher mitochondrial abundance/capacity seen in female mice. We hypothesized HFD would be a greater stimulus than exercise to remodel ETF and lipid pathways through increased protein synthesis alongside increased lipid respiration. Female C57BL/6J mice (n = 15 per group) consumed HFD or low-fat diet (LFD) for 4 weeks then remained sedentary (SED) or completed 8 weeks of treadmill training (EX). We determined mitochondrial lipid respiration, RNA abundance, individual protein synthesis, and abundance for ETFα, ETFβ, and ETF dehydrogenase (ETFDH). HFD increased absolute and relative lipid respiration (p = 0.018 and p = 0.034) and RNA abundance for ETFα (p = 0.026), ETFβ (p = 0.003), and ETFDH (p = 0.0003). HFD increased synthesis for ETFα and ETFDH (p = 0.0007 and p = 0.002). EX increased synthesis of ETFβ and ETFDH (p = 0.008 and p = 0.006). Higher synthesis rates of ETF were not always reflected in greater protein abundance. Greater synthesis of ETF during HFD indicates mitochondrial remodeling which may contribute higher mitochondrial lipid respiration through enhanced ETF function.
Collapse
Affiliation(s)
- Philip M. Batterson
- School of Biological and Population Health SciencesOregon State UniversityCorvallisOregonUSA
| | - Erin M. McGowan
- School of Biological and Population Health SciencesOregon State UniversityCorvallisOregonUSA
| | - Agnieszka K. Borowik
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
| | - Michael T. Kinter
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
| | - Benjamin F. Miller
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
- Oklahoma City VAOklahoma CityOklahomaUSA
| | - Sean A. Newsom
- School of Biological and Population Health SciencesOregon State UniversityCorvallisOregonUSA
| | - Matthew M. Robinson
- School of Biological and Population Health SciencesOregon State UniversityCorvallisOregonUSA
| |
Collapse
|
42
|
Somalo-Barranco G, Pagano Zottola AC, Abdulrahman AO, El Zein RM, Cannich A, Muñoz L, Serra C, Oishi A, Marsicano G, Masri B, Bellocchio L, Llebaria A, Jockers R. Mitochondria-targeted melatonin photorelease supports the presence of melatonin MT1 receptors in mitochondria inhibiting respiration. Cell Chem Biol 2023; 30:920-932.e7. [PMID: 37572668 DOI: 10.1016/j.chembiol.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 04/16/2023] [Accepted: 07/20/2023] [Indexed: 08/14/2023]
Abstract
The presence of signaling-competent G protein-coupled receptors in intracellular compartments is increasingly recognized. Recently, the presence of Gi/o protein-coupled melatonin MT1 receptors in mitochondria has been revealed, in addition to the plasma membrane. Melatonin is highly cell permeant, activating plasma membrane and mitochondrial receptors equally. Here, we present MCS-1145, a melatonin derivative bearing a triphenylphosphonium cation for specific mitochondrial targeting and a photocleavable o-nitrobenzyl group releasing melatonin upon illumination. MCS-1145 displayed low affinity for MT1 and MT2 but spontaneously accumulated in mitochondria, where it was resistant to washout. Uncaged MCS-1145 and exogenous melatonin recruited β-arrestin 2 to MT1 in mitochondria and inhibited oxygen consumption in mitochondria isolated from HEK293 cells only when expressing MT1 and from mouse cerebellum of WT mice but not from MT1-knockout mice. Overall, we developed the first mitochondria-targeted photoactivatable melatonin ligand and demonstrate that melatonin inhibits mitochondrial respiration through mitochondrial MT1 receptors.
Collapse
Affiliation(s)
- Gloria Somalo-Barranco
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 PARIS, France; MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | | | | | - Rami M El Zein
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 PARIS, France
| | - Astrid Cannich
- INSERM, U1215 NeuroCentre Magendie, Endocannabinoids and Neuroadaptation, Bordeaux, France
| | - Lourdes Muñoz
- MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain; SIMChem, Synthesis of High Added Value Molecules, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Carme Serra
- MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain; SIMChem, Synthesis of High Added Value Molecules, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Atsuro Oishi
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 PARIS, France
| | - Giovanni Marsicano
- INSERM, U1215 NeuroCentre Magendie, Endocannabinoids and Neuroadaptation, Bordeaux, France
| | - Bernard Masri
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 PARIS, France
| | - Luigi Bellocchio
- INSERM, U1215 NeuroCentre Magendie, Endocannabinoids and Neuroadaptation, Bordeaux, France
| | - Amadeu Llebaria
- MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain.
| | - Ralf Jockers
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 PARIS, France.
| |
Collapse
|
43
|
Semenovich DS, Andrianova NV, Zorova LD, Pevzner IB, Abramicheva PA, Elchaninov AV, Markova OV, Petrukhina AS, Zorov DB, Plotnikov EY. Fibrosis Development Linked to Alterations in Glucose and Energy Metabolism and Prooxidant-Antioxidant Balance in Experimental Models of Liver Injury. Antioxidants (Basel) 2023; 12:1604. [PMID: 37627599 PMCID: PMC10451385 DOI: 10.3390/antiox12081604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
The development of liver fibrosis is one of the most severe and life-threatening outcomes of chronic liver disease (CLD). For targeted therapy of CLD, it is highly needed to reveal molecular targets for normalizing metabolic processes impaired in damaged liver and associated with fibrosis. In this study, we investigated the morphological and biochemical changes in rat liver models of fibrosis induced by chronic administration of thioacetamide, carbon tetrachloride, bile duct ligation (BDL), and ischemia/reperfusion (I/R), with a specific focus on carbohydrate and energy metabolism. Changes in the levels of substrates and products, as well as enzyme activities of the major glucose metabolic pathways (glycolysis, glucuronidation, and pentose phosphate pathway) were examined in rat liver tissue after injury. We examined key markers of oxidative energy metabolism, such as the activity of the Krebs cycle enzymes, and assessed mitochondrial respiratory activity. In addition, pro- and anti-oxidative status was assessed in fibrotic liver tissue. We found that 6 weeks of exposure to thioacetamide, carbon tetrachloride, BDL or I/R resulted in a decrease in the activity of glycolytic enzymes, retardation of mitochondrial respiration, elevation of glucuronidation, and activation of pentose phosphate pathways, accompanied by a decrease in antioxidant activity and the onset of oxidative stress in rat liver. Resemblance and differences in the changes in the fibrosis models used are described, including energy metabolism alterations and antioxidant status in the used fibrosis models. The least pronounced changes in glucose metabolism and mitochondrial functions in the I/R and thioacetamide models were associated with the least advanced fibrosis. Ultimately, liver fibrosis significantly altered the metabolic profile in liver tissue and the flux of glucose metabolic pathways, which could be the basis for targeted therapy of liver fibrosis in CLD caused by toxic, cholestatic, or I/R liver injury.
Collapse
Affiliation(s)
- Dmitry S. Semenovich
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Nadezda V. Andrianova
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Ljubava D. Zorova
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
| | - Irina B. Pevzner
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
| | - Polina A. Abramicheva
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Andrey V. Elchaninov
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution “Petrovsky National Research Centre of Surgery”, 117418 Moscow, Russia
| | - Olga V. Markova
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Aleksandra S. Petrukhina
- K.I. Skryabin Moscow State Academy of Veterinary Medicine and Biotechnology, 109472 Moscow, Russia
| | - Dmitry B. Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
| |
Collapse
|
44
|
Tsai PY, Shui B, Lee S, Liu Y, Qu Y, Cheng C, Edwards K, Wong C, Meng-Killeen R, Soloway PD, Barrow JJ. Ado-Mediated Depletion of Taurine Impairs Mitochondrial Respiratory Capacity and Alters the Chromatin Landscape of Inguinal Adipose Tissue. Nutrients 2023; 15:3532. [PMID: 37630723 PMCID: PMC10458711 DOI: 10.3390/nu15163532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/04/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Non-shivering thermogenesis (NST) has strong potential to combat obesity; however, a safe molecular approach to activate this process has not yet been identified. The sulfur amino acid taurine has the ability to safely activate NST and confer protection against obesity and metabolic disease in both mice and humans, but the mechanism of this action is unknown. In this study, we discover that a suite of taurine biosynthetic enzymes, especially that of cysteamine dioxygenase (ADO), significantly increases in response to β3 adrenergic signaling in inguinal adipose tissue (IWAT) in order to increase intracellular concentrations of taurine. We further show that ADO is critical for thermogenic mitochondrial respiratory function as its ablation in adipocytes significantly reduces taurine levels, which leads to declines in mitochondrial oxygen consumption rates. Finally, we demonstrate via assay for transposase-accessible chromatin with sequencing (ATAC-seq) that taurine supplementation in beige adipocytes has the ability to remodel the chromatin landscape to increase the chromatin accessibility and transcription of genes, such as glucose-6-phosphate isomerase 1 (Gpi1), which are critical for NST. Taken together, our studies highlight a potential mechanism for taurine in the activation of NST that can be leveraged toward the treatment of obesity and metabolic disease.
Collapse
Affiliation(s)
- Pei-Yin Tsai
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Bo Shui
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14850, USA
| | - Seoyeon Lee
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14850, USA
| | - Yang Liu
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Yue Qu
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Chloe Cheng
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14850, USA
| | - Kaydine Edwards
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Callie Wong
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Ryan Meng-Killeen
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| | - Paul D. Soloway
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
- Department of Biomedical Sciences, Cornell University, Ithaca, NY 14850, USA
| | - Joeva J. Barrow
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA; (P.-Y.T.)
| |
Collapse
|
45
|
Chapa-Dubocq XR, Rodríguez-Graciani KM, García-Báez J, Vadovsky A, Bazil JN, Javadov S. The Role of Swelling in the Regulation of OPA1-Mediated Mitochondrial Function in the Heart In Vitro. Cells 2023; 12:2017. [PMID: 37626827 PMCID: PMC10453793 DOI: 10.3390/cells12162017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Optic atrophy-1 (OPA1) plays a crucial role in the regulation of mitochondria fusion and participates in maintaining the structural integrity of mitochondrial cristae. Here we elucidate the role of OPA1 cleavage induced by calcium swelling in the presence of Myls22 (an OPA1 GTPase activity inhibitor) and TPEN (an OMA1 inhibitor). The rate of ADP-stimulated respiration was found diminished by both inhibitors, and they did not prevent Ca2+-induced mitochondrial respiratory dysfunction, membrane depolarization, or swelling. L-OPA1 cleavage was stimulated at state 3 respiration; therefore, our data suggest that L-OPA1 cleavage produces S-OPA1 to maintain mitochondrial bioenergetics in response to stress.
Collapse
Affiliation(s)
- Xavier R. Chapa-Dubocq
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00936-5067, USA; (X.R.C.-D.); (K.M.R.-G.); (J.G.-B.)
| | - Keishla M. Rodríguez-Graciani
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00936-5067, USA; (X.R.C.-D.); (K.M.R.-G.); (J.G.-B.)
| | - Jorge García-Báez
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00936-5067, USA; (X.R.C.-D.); (K.M.R.-G.); (J.G.-B.)
| | - Alyssa Vadovsky
- Department of Physiology, Michigan State University, East Lansing, MI 48824-1046, USA; (A.V.); (J.N.B.)
| | - Jason N. Bazil
- Department of Physiology, Michigan State University, East Lansing, MI 48824-1046, USA; (A.V.); (J.N.B.)
| | - Sabzali Javadov
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00936-5067, USA; (X.R.C.-D.); (K.M.R.-G.); (J.G.-B.)
| |
Collapse
|
46
|
Chen L, Li Y, Zambidis A, Papadopoulos V. ATAD3A: A Key Regulator of Mitochondria-Associated Diseases. Int J Mol Sci 2023; 24:12511. [PMID: 37569886 PMCID: PMC10419812 DOI: 10.3390/ijms241512511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Mitochondrial membrane protein ATAD3A is a member of the AAA-domain-containing ATPases superfamily. It is important for the maintenance of mitochondrial DNA, structure, and function. In recent years, an increasing number of ATAD3A mutations have been identified in patients with neurological symptoms. Many of these mutations disrupt mitochondrial structure, function, and dynamics and are lethal to patients at a young age. Here, we summarize the current understanding of the relationship between ATAD3A and mitochondria, including the interaction of ATAD3A with mitochondrial DNA and mitochondrial/ER proteins, the regulation of ATAD3A in cholesterol mitochondrial trafficking, and the effect of known ATAD3A mutations on mitochondrial function. In the current review, we revealed that the oligomerization and interaction of ATAD3A with other mitochondrial/ER proteins are vital for its various functions. Despite affecting different domains of the protein, nearly all documented mutations observed in ATAD3A exhibit either loss-of-function or dominant-negative effects, potentially leading to disruption in the dimerization of ATAD3A; autophagy; mitophagy; alteration in mitochondrial number, size, and cristae morphology; and diminished activity of mitochondrial respiratory chain complexes I, IV, and V. These findings imply that ATAD3A plays a critical role in mitochondrial dynamics, which can be readily perturbed by ATAD3A mutation variants.
Collapse
Affiliation(s)
| | | | | | - Vassilios Papadopoulos
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 99089, USA; (L.C.); (Y.L.); (A.Z.)
| |
Collapse
|
47
|
Mahé M, Rios-Fuller TJ, Karolin A, Schneider RJ. Genetics of enzymatic dysfunctions in metabolic disorders and cancer. Front Oncol 2023; 13:1230934. [PMID: 37601653 PMCID: PMC10433910 DOI: 10.3389/fonc.2023.1230934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023] Open
Abstract
Inherited metabolic disorders arise from mutations in genes involved in the biogenesis, assembly, or activity of metabolic enzymes, leading to enzymatic deficiency and severe metabolic impairments. Metabolic enzymes are essential for the normal functioning of cells and are involved in the production of amino acids, fatty acids and nucleotides, which are essential for cell growth, division and survival. When the activity of metabolic enzymes is disrupted due to mutations or changes in expression levels, it can result in various metabolic disorders that have also been linked to cancer development. However, there remains much to learn regarding the relationship between the dysregulation of metabolic enzymes and metabolic adaptations in cancer cells. In this review, we explore how dysregulated metabolism due to the alteration or change of metabolic enzymes in cancer cells plays a crucial role in tumor development, progression, metastasis and drug resistance. In addition, these changes in metabolism provide cancer cells with a number of advantages, including increased proliferation, resistance to apoptosis and the ability to evade the immune system. The tumor microenvironment, genetic context, and different signaling pathways further influence this interplay between cancer and metabolism. This review aims to explore how the dysregulation of metabolic enzymes in specific pathways, including the urea cycle, glycogen storage, lysosome storage, fatty acid oxidation, and mitochondrial respiration, contributes to the development of metabolic disorders and cancer. Additionally, the review seeks to shed light on why these enzymes represent crucial potential therapeutic targets and biomarkers in various cancer types.
Collapse
Affiliation(s)
| | | | | | - Robert J. Schneider
- Department of Microbiology, Grossman NYU School of Medicine, New York, NY, United States
| |
Collapse
|
48
|
Chen X, Li M, Wang D, Wang Q, Wei X, Liu X, Yang J, Kalvakolanu DV, Guo B, Zhang L. Histone chaperone SSRP1 is required for apoptosis inhibition and mitochondrial function in HCC via transcriptional promotion of TRAP1. Biochem Cell Biol 2023; 101:361-376. [PMID: 37084412 DOI: 10.1139/bcb-2023-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023] Open
Abstract
Epigenetic regulation contributes to human health and disease, especially cancer, but the mechanisms of many epigenetic regulators remain obscure. Most research is focused on gene regulatory processes, such as mRNA translation and DNA damage repair, rather than the effects on biological functions like mitochondrial activity and oxidative phosphorylation. Here, we identified an essential role for the histone chaperone structure-specific recognition protein 1 (SSRP1) in mitochondrial oxidative respiration in hepatocellular carcinoma, and found that SSRP1 suppression led to mitochondrial damage and decreased oxidative respiration. Further, we focused on TNF receptor-associated protein 1 (TRAP1), the only member of the heat shock protein 90 (HSP90) family, which directly interacts with selected respiratory complexes and affects their stability and activity. We confirmed that SSRP1 downregulation caused a decrease in TRAP1 expression at both the mRNA and protein levels. A chromatin immunoprecipitation assay also showed that SSRP1 could deposit in the TRAP1 promoter region, indicating that SSRP1 maintains mitochondrial function and reactive oxygen species levels through TRAP1. Additionally, rescue experiments and animal experiments confirmed the mechanism of SSRP1 and TRAP1 interaction. In summary, we identified a new mechanism that connects mitochondrial respiration and apoptosis, via SSRP1.
Collapse
Affiliation(s)
- Xuyang Chen
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Mengxin Li
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Ding Wang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Qian Wang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Xiaodong Wei
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Xiaorui Liu
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Jiaying Yang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Dhan V Kalvakolanu
- Greenebaum NCI Comprehensive Cancer Center, Department of Microbiology and Immunology University of Maryland School Medicine, Baltimore, MD, USA
| | - Baofeng Guo
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Ling Zhang
- Key Laboratory of Pathobiology, Ministry of Education, and Department of pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| |
Collapse
|
49
|
Akagi S, Nakamura K, Kondo M, Hirohata S, Udono H, Nishida M, Saito Y, Yoshida M, Miyoshi T, Ito H. Evidence for Hypoxia-Induced Shift in ATP Production from Glycolysis to Mitochondrial Respiration in Pulmonary Artery Smooth Muscle Cells in Pulmonary Arterial Hypertension. J Clin Med 2023; 12:5028. [PMID: 37568430 PMCID: PMC10419513 DOI: 10.3390/jcm12155028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND The metabolic state of pulmonary artery smooth muscle cells (PASMCs) from patients with pulmonary arterial hypertension (PAH) is not well understood. In this study, we examined the balance between glycolysis and mitochondrial respiration in non-PAH-PASMCs and PAH-PASMCs under normoxia and hypoxia. METHODS We investigated the enzymes involved in glycolysis and mitochondrial respiration, and studied the two major energy-yielding pathways (glycolysis and mitochondrial respiration) by measuring extracellular acidification rate (ECAR) and cellular oxygen consumption rate (OCR) using the Seahorse extracellular flux technology. RESULTS Under both normoxia and hypoxia, the mRNA and protein levels of pyruvate dehydrogenase kinase 1 and pyruvate dehydrogenase were increased in PAH-PASMCs compared with non-PAH-PASMCs. The mRNA and protein levels of lactate dehydrogenase, as well as the intracellular lactate concentration, were also increased in PAH-PASMCs compared with non-PAH-PASMCs under normoxia. However, these were not significantly increased in PAH-PASMCs compared with non-PAH-PASMCs under hypoxia. Under normoxia, ATP production was significantly lower in PAH-PASMCs (59 ± 5 pmol/min) than in non-PAH-PASMCs (70 ± 10 pmol/min). On the other hand, ATP production was significantly higher in PAH-PASMCs (31 ± 5 pmol/min) than in non-PAH-PASMCs (14 ± 3 pmol/min) under hypoxia. CONCLUSIONS There is an underlying change in the metabolic strategy to generate ATP production under the challenge of hypoxia.
Collapse
Affiliation(s)
- Satoshi Akagi
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Kazufumi Nakamura
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Megumi Kondo
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Satoshi Hirohata
- Department of Medical Technology, Graduate School of Health Sciences, Okayama University, Okayama 700-8558, Japan;
| | - Heiichiro Udono
- Department of Immunology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (H.U.); (M.N.)
| | - Mikako Nishida
- Department of Immunology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (H.U.); (M.N.)
| | - Yukihiro Saito
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Masashi Yoshida
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Toru Miyoshi
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan; (K.N.); (M.K.); (Y.S.); (M.Y.); (T.M.); (H.I.)
| |
Collapse
|
50
|
Protasoni M, Taanman JW. Remodelling of the Mitochondrial Bioenergetic Pathways in Human Cultured Fibroblasts with Carbohydrates. Biology (Basel) 2023; 12:1002. [PMID: 37508431 PMCID: PMC10376623 DOI: 10.3390/biology12071002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/05/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023]
Abstract
Mitochondrial oxidative phosphorylation defects underlie many neurological and neuromuscular diseases. Patients' primary dermal fibroblasts are one of the most commonly used in vitro models to study mitochondrial pathologies. However, fibroblasts tend to rely more on glycolysis than oxidative phosphorylation for their energy when cultivated in standard high-glucose medium, rendering it difficult to expose mitochondrial dysfunctions. This study aimed to systematically investigate to which extent the use of galactose- or fructose-based medium switches the fibroblasts' energy metabolism to a more oxidative state. Highly proliferative cells depend more on glycolysis than less proliferative cells. Therefore, we investigated two primary dermal fibroblast cultures from healthy subjects: a highly proliferative neonatal culture and a slower-growing adult culture. Cells were cultured with 25 mM glucose, galactose or fructose, and 4 mM glutamine as carbon sources. Compared to glucose, both galactose and fructose reduce the cellular proliferation rate, but the galactose-induced drop in proliferation is much more profound than the one observed in cells cultivated in fructose. Both galactose and fructose result in a modest increase in mitochondrial content, including mitochondrial DNA, and a disproportionate increase in protein levels, assembly, and activity of the oxidative phosphorylation enzyme complexes. Galactose- and fructose-based media induce a switch of the prevalent biochemical pathway in cultured fibroblasts, enhancing aerobic metabolism when compared to glucose-based medium. While both galactose and fructose stimulate oxidative phosphorylation to a comparable degree, galactose decreases the cellular proliferation rate more than fructose, suggesting that a fructose-based medium is a better choice when studying partial oxidative phosphorylation defects in patients' fibroblasts.
Collapse
Affiliation(s)
- Margherita Protasoni
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, Royal Free Campus (M12), Rowland Hill Street, London NW3 2PF, UK
| | - Jan-Willem Taanman
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, Royal Free Campus (M12), Rowland Hill Street, London NW3 2PF, UK
| |
Collapse
|