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Dacomo L, La Vitola P, Brunelli L, Messa L, Micotti E, Artioli L, Sinopoli E, Cecutti G, Leva S, Gagliardi S, Pansarasa O, Carelli S, Guaita A, Pastorelli R, Forloni G, Cereda C, Balducci C. Transcriptomic and metabolomic changes might predict frailty in SAMP8 mice. Aging Cell 2024:e14263. [PMID: 38961613 DOI: 10.1111/acel.14263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/05/2024] Open
Abstract
Frailty is a geriatric, multi-dimensional syndrome that reflects multisystem physiological change and is a transversal measure of reduced resilience to negative events. It is characterized by weakness, frequent falls, cognitive decline, increased hospitalization and dead and represents a risk factor for the development of Alzheimer's disease (AD). The fact that frailty is recognized as a reversible condition encourages the identification of earlier biomarkers to timely predict and prevent its occurrence. SAMP8 (Senescence-Accelerated Mouse Prone-8) mice represent the most appropriate preclinical model to this aim and were used in this study to carry transcriptional and metabolic analyses in the brain and plasma, respectively, upon a characterization at cognitive, motor, structural, and neuropathological level at 2.5, 6, and 9 months of age. At 2.5 months, SAMP8 mice started displaying memory deficits, muscle weakness, and motor impairment. Functional alterations were associated with a neurodevelopmental deficiency associated with reduced neuronal density and glial cell loss. Through transcriptomics, we identified specific genetic signatures well distinguishing SAMP8 mice at 6 months, whereas plasma metabolomics allowed to segregate SAMP8 mice from SAMR1 already at 2.5 months of age by detecting constitutively lower levels of acylcarnitines and lipids in SAMP8 at all ages investigated correlating with functional deficits and neuropathological signs. Our findings suggest that specific genetic alterations at central level, as well as metabolomic changes in plasma, might allow to early assess a frail condition leading to dementia development, which paves the foundation for future investigation in a clinical setting.
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Affiliation(s)
- Letizia Dacomo
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Pietro La Vitola
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Laura Brunelli
- Department of Environmental Health Sciences, Laboratory of Metabolites and Proteins in Translational Research, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Letizia Messa
- Department of Electronics, Information and Bioengineering (DEIB) Politecnico di Milano, Milan, Italy
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
| | - Edoardo Micotti
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Luisa Artioli
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Elena Sinopoli
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Greta Cecutti
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Susanna Leva
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Stella Gagliardi
- Molecular Biology and Transcriptomics, IRCCS Mondino Foundation, Pavia, Italy
| | - Orietta Pansarasa
- Cellular Model and Neuroepigenetics, IRCCS Mondino Foundation, Pavia, Italy
| | - Stephana Carelli
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, Pediatric Clinical Research Center "Romeo Ed Enrica Invernizzi", University of Milan, Milan, Italy
| | | | - Roberta Pastorelli
- Department of Environmental Health Sciences, Laboratory of Metabolites and Proteins in Translational Research, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Gianluigi Forloni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Cristina Cereda
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
| | - Claudia Balducci
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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2
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Reed AL, Mitchell W, Alexandrescu AT, Alder NN. Interactions of amyloidogenic proteins with mitochondrial protein import machinery in aging-related neurodegenerative diseases. Front Physiol 2023; 14:1263420. [PMID: 38028797 PMCID: PMC10652799 DOI: 10.3389/fphys.2023.1263420] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023] Open
Abstract
Most mitochondrial proteins are targeted to the organelle by N-terminal mitochondrial targeting sequences (MTSs, or "presequences") that are recognized by the import machinery and subsequently cleaved to yield the mature protein. MTSs do not have conserved amino acid compositions, but share common physicochemical properties, including the ability to form amphipathic α-helical structures enriched with basic and hydrophobic residues on alternating faces. The lack of strict sequence conservation implies that some polypeptides can be mistargeted to mitochondria, especially under cellular stress. The pathogenic accumulation of proteins within mitochondria is implicated in many aging-related neurodegenerative diseases, including Alzheimer's, Parkinson's, and Huntington's diseases. Mechanistically, these diseases may originate in part from mitochondrial interactions with amyloid-β precursor protein (APP) or its cleavage product amyloid-β (Aβ), α-synuclein (α-syn), and mutant forms of huntingtin (mHtt), respectively, that are mediated in part through their associations with the mitochondrial protein import machinery. Emerging evidence suggests that these amyloidogenic proteins may present cryptic targeting signals that act as MTS mimetics and can be recognized by mitochondrial import receptors and transported into different mitochondrial compartments. Accumulation of these mistargeted proteins could overwhelm the import machinery and its associated quality control mechanisms, thereby contributing to neurological disease progression. Alternatively, the uptake of amyloidogenic proteins into mitochondria may be part of a protein quality control mechanism for clearance of cytotoxic proteins. Here we review the pathomechanisms of these diseases as they relate to mitochondrial protein import and effects on mitochondrial function, what features of APP/Aβ, α-syn and mHtt make them suitable substrates for the import machinery, and how this information can be leveraged for the development of therapeutic interventions.
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Affiliation(s)
- Ashley L. Reed
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, United States
| | - Wayne Mitchell
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Andrei T. Alexandrescu
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, United States
| | - Nathan N. Alder
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, United States
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3
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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] [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.
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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
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4
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Ruocco C, Malavazos AE, Ragni M, Carruba MO, Valerio A, Iacobellis G, Nisoli E. Amino acids contribute to adaptive thermogenesis. New insights into the mechanisms of action of recent drugs for metabolic disorders are emerging. Pharmacol Res 2023; 195:106892. [PMID: 37619907 DOI: 10.1016/j.phrs.2023.106892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/28/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Adaptive thermogenesis is the heat production by muscle contractions (shivering thermogenesis) or brown adipose tissue (BAT) and beige fat (non-shivering thermogenesis) in response to external stimuli, including cold exposure. BAT and beige fat communicate with peripheral organs and the brain through a variegate secretory and absorption processes - controlling adipokines, microRNAs, extracellular vesicles, and metabolites - and have received much attention as potential therapeutic targets for managing obesity-related disorders. The sympathetic nervous system and norepinephrine-releasing adipose tissue macrophages (ATM) activate uncoupling protein 1 (UCP1), expressed explicitly in brown and beige adipocytes, dissolving the electrochemical gradient and uncoupling tricarboxylic acid cycle and the electron transport chain from ATP production. Mounting evidence has attracted attention to the multiple effects of dietary and endogenously synthesised amino acids in BAT thermogenesis and metabolic phenotype in animals and humans. However, the mechanisms implicated in these processes have yet to be conclusively characterized. In the present review article, we aim to define the principal investigation areas in this context, including intestinal microbiota constitution, adipose autophagy modulation, and secretome and metabolic fluxes control, which lead to increased brown/beige thermogenesis. Finally, also based on our recent epicardial adipose tissue results, we summarise the evidence supporting the notion that the new dual and triple agonists of glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon (GCG) receptor - with never before seen weight loss and insulin-sensitizing efficacy - promote thermogenic-like amino acid profiles in BAT with robust heat production and likely trigger sympathetic activation and adaptive thermogenesis by controlling amino acid metabolism and ATM expansion in BAT and beige fat.
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Affiliation(s)
- Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Alexis Elias Malavazos
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, Piazza Edmondo Malan, 2, San Donato Milanese, 20097 Milan, Italy; Department of Biomedical, Surgical and Dental Sciences, University of Milan, via della Commenda, 10, 20122 Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, viale Europa, 11, 25123 Brescia, Italy
| | - Gianluca Iacobellis
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami, 1400 NW 12th Ave, Miami, FL, USA
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy.
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Bottani E, Brunetti D. Advances in Mitochondria-Targeted Drug Delivery. Pharmaceutics 2023; 15:2089. [PMID: 37631303 PMCID: PMC10459761 DOI: 10.3390/pharmaceutics15082089] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Mitochondria are dynamic organelles that play a crucial role in numerous cellular activities [...].
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Affiliation(s)
- Emanuela Bottani
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134 Verona, Italy
| | - Dario Brunetti
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
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6
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Di Donfrancesco A, Berlingieri C, Giacomello M, Frascarelli C, Magalhaes Rebelo AP, Bindoff LA, Reeval S, Renbaum P, Santorelli FM, Massaro G, Viscomi C, Zeviani M, Ghezzi D, Bottani E, Brunetti D. PPAR-gamma agonist pioglitazone recovers mitochondrial quality control in fibroblasts from PITRM1-deficient patients. Front Pharmacol 2023; 14:1220620. [PMID: 37576821 PMCID: PMC10415619 DOI: 10.3389/fphar.2023.1220620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction: Biallelic variants in PITRM1 are associated with a slowly progressive syndrome characterized by intellectual disability, spinocerebellar ataxia, cognitive decline and psychosis. The pitrilysin metallopeptidase 1 (PITRM1) is a mitochondrial matrix enzyme, which digests diverse oligopeptides, including the mitochondrial targeting sequences (MTS) that are cleaved from proteins imported across the inner mitochondrial membrane by the mitochondrial processing peptidase (MPP). Mitochondrial peptidases also play a role in the maturation of Frataxin, the protein affected in Friedreich's ataxia. Recent studies in yeast indicated that the mitochondrial matrix protease Ste23, which is a homologue of the human insulin-degrading enzyme (IDE), cooperates with Cym1 (homologue of PITRM1) to ensure the proper functioning of the preprotein processing machinery. In humans, IDE could be upregulated by Peroxisome Proliferator-Activated Receptor Gamma (PPARG) agonists. Methods: We investigated preprotein processing, mitochondrial membrane potential and MTS degradation in control and patients' fibroblasts, and we evaluated the pharmacological effect of the PPARG agonist Pioglitazone on mitochondrial proteostasis. Results: We discovered that PITRM1 dysfunction results in the accumulation of MTS, leading to the disruption and dissipation of the mitochondrial membrane potential. This triggers a feedback inhibition of MPP activity, consequently impairing the processing and maturation of Frataxin. Furthermore, we found that the pharmacological stimulation of PPARG by Pioglitazone upregulates IDE and also PITRM1 protein levels restoring the presequence processing machinery and improving Frataxin maturation and mitochondrial function. Discussion: Our findings provide mechanistic insights and suggest a potential pharmacological strategy for this rare neurodegenerative mitochondrial disease.
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Affiliation(s)
- Alessia Di Donfrancesco
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Christian Berlingieri
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marta Giacomello
- Department of Biology, University of Padova, Padova, Italy
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Chiara Frascarelli
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | | | - Segel Reeval
- Shaare Zedek Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Paul Renbaum
- Shaare Zedek Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Giulia Massaro
- UCL School of Pharmacy, University College London, London, United Kingdom
| | - Carlo Viscomi
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Massimo Zeviani
- Department of Neurosciences, University of Padova, Padova, Italy
| | - Daniele Ghezzi
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Emanuela Bottani
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, Verona, Italy
| | - Dario Brunetti
- Unità di Genetica Medica e Neurogenetica, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
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7
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Brunani A, Cancello R, Gobbi M, Lucchetti E, Di Guglielmo G, Maestrini S, Cattaldo S, Piterà P, Ruocco C, Milesi A, Valerio A, Capodaglio P, Nisoli E. Comparison of Protein- or Amino Acid-Based Supplements in the Rehabilitation of Men with Severe Obesity: A Randomized Controlled Pilot Study. J Clin Med 2023; 12:4257. [PMID: 37445292 PMCID: PMC10342837 DOI: 10.3390/jcm12134257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Weight loss is associated with a reduction in all body compartments, including muscle mass (MM), and this effect produces a decrease in function and muscle strength. Our objective was to assess the impact of protein or amino acid supplements on MM loss in middle-aged men (age < 65 years) with severe obesity (BMI > 35 kg/m2) during weight loss. MATERIALS AND METHODS We conducted a single-site randomized controlled trial (Clinicaltrials.gov NCT05143398) with 40 in-patient male subjects with severe obesity. Participants underwent an intervention program consisting of a low-calorie balanced diet and structured physical activity. They were randomly assigned to 4-week treatment groups: (1) control (CTR, N = 10), (2) protein (P, N = 10), (3) branched-chain amino acid (BCAA, N = 10), and (4) essential amino acid mixture with tricarboxylic acid cycle intermediates (PD-E07, N = 10) supplementation. RESULTS Following 4 weeks of intervention, all groups showed similar reductions in body weight compared to baseline. When examining the delta values, a notable increase in muscle mass (MM) was observed in the PD-E07 intervention group [MM (kg): 2.84 ± 3.57; MM (%): 3.63 ± 3.14], in contrast to the CTR group [MM (kg): -2.46 ± 3.04; MM (%): -0.47 ± 2.28], with a statistical significance of p = 0.045 and p = 0.023, respectively. However, the MM values for the P group [MM (kg): -2.75 ± 5.98, p = 0.734; MM (%): -0.44 ± 4.02, p = 0.990] and the BCAA group [MM (kg): -1 ± 3.3, p = 0.734; MM (%): 0.34 ± 2.85, p = 0.956] did not exhibit a statistically significant difference when compared to the CTR group. CONCLUSIONS Amino acid-based supplements may effectively mitigate the loss of MM typically observed during weight reduction. Further validation through large-scale studies is necessary.
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Affiliation(s)
- Amelia Brunani
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Raffaella Cancello
- Obesity Unit, Department of Endocrine and Metabolic Diseases, Laboratory of Nutrition and Obesity Research, IRCCS Istituto Auxologico Italiano, 20100 Milan, Italy;
| | - Michele Gobbi
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Elisa Lucchetti
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Giulia Di Guglielmo
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Sabrina Maestrini
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Stefania Cattaldo
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Paolo Piterà
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20100 Milan, Italy; (C.R.)
| | - Alessandra Milesi
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25121 Brescia, Italy
| | - Paolo Capodaglio
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
- Department of Surgical Sciences, Physical and Rehabilitation Medicine, University of Torino, 10121 Torino, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20100 Milan, Italy; (C.R.)
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8
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Ragni M, Fenaroli F, Ruocco C, Segala A, D’Antona G, Nisoli E, Valerio A. A balanced formula of essential amino acids promotes brain mitochondrial biogenesis and protects neurons from ischemic insult. Front Neurosci 2023; 17:1197208. [PMID: 37397466 PMCID: PMC10308218 DOI: 10.3389/fnins.2023.1197208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/30/2023] [Indexed: 07/04/2023] Open
Abstract
Mitochondrial dysfunction plays a key role in the aging process, and aging is a strong risk factor for neurodegenerative diseases or brain injury characterized by impairment of mitochondrial function. Among these, ischemic stroke is one of the leading causes of death and permanent disability worldwide. Pharmacological approaches for its prevention and therapy are limited. Although non-pharmacological interventions such as physical exercise, which promotes brain mitochondrial biogenesis, have been shown to exert preventive effects against ischemic stroke, regular feasibility is complex in older people, and nutraceutical strategies could be valuable alternatives. We show here that dietary supplementation with a balanced essential amino acid mixture (BCAAem) increased mitochondrial biogenesis and the endogenous antioxidant response in the hippocampus of middle-aged mice to an extent comparable to those elicited by treadmill exercise training, suggesting BCAAem as an effective exercise mimetic on brain mitochondrial health and disease prevention. In vitro BCAAem treatment directly exerted mitochondrial biogenic effects and induced antioxidant enzyme expression in primary mouse cortical neurons. Further, exposure to BCAAem protected cortical neurons from the ischemic damage induced by an in vitro model of cerebral ischemia (oxygen-glucose deprivation, OGD). BCAAem-mediated protection against OGD was abolished in the presence of rapamycin, Torin-1, or L-NAME, indicating the requirement of both mTOR and eNOS signaling pathways in the BCAAem effects. We propose BCAAem supplementation as an alternative to physical exercise to prevent brain mitochondrial derangements leading to neurodegeneration and as a nutraceutical intervention aiding recovery after cerebral ischemia in conjunction with conventional drugs.
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Affiliation(s)
- Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Francesca Fenaroli
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Giuseppe D’Antona
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
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9
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Nwadiugwu M, Shen H, Deng HW. Potential Molecular Mechanisms of Alzheimer's Disease from Genetic Studies. BIOLOGY 2023; 12:biology12040602. [PMID: 37106802 PMCID: PMC10136191 DOI: 10.3390/biology12040602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/09/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023]
Abstract
The devastating effects of Alzheimer's disease (AD) are yet to be ameliorated due to the absence of curative treatment options. AD is an aging-related disease that affects cognition, and molecular imbalance is one of its hallmarks. There is a need to identify common causes of molecular imbalance in AD and their potential mechanisms for continuing research. A narrative synthesis of molecular mechanisms in AD from primary studies that employed single-cell sequencing (scRNA-seq) or spatial genomics was conducted using Embase and PubMed databases. We found that differences in molecular mechanisms in AD could be grouped into four key categories: sex-specific features, early-onset features, aging, and immune system pathways. The reported causes of molecular imbalance were alterations in bile acid (BA) synthesis, PITRM1, TREM2, olfactory mucosa (OM) cells, cholesterol catabolism, NFkB, double-strand break (DSB) neuronal damage, P65KD silencing, tau and APOE expression. What changed from previous findings in contrast to results obtained were explored to find potential factors for AD-modifying investigations.
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Affiliation(s)
- Martin Nwadiugwu
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Hui Shen
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Hong-Wen Deng
- Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA 70112, USA
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10
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Norikura T, Sasaki Y, Kojima-Yuasa A, Kon A. Glyoxylic Acid, an α-Keto Acid Metabolite Derived from Glycine, Promotes Myogenesis in C2C12 Cells. Nutrients 2023; 15:nu15071763. [PMID: 37049603 PMCID: PMC10096605 DOI: 10.3390/nu15071763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/07/2023] Open
Abstract
α-Keto acids may help prevent malnutrition in patients with chronic kidney disease (CKD), who consume protein-restricted diets, because they serve as amino acid sources without producing nitrogenous waste compounds. However, the physiological roles of α-keto acids, especially those derived from non-essential amino acids, remain unclear. In this study, we examined the effect of glyoxylic acid (GA), an α-keto acid metabolite derived from glycine, on myogenesis in C2C12 cells. Differentiation and mitochondrial biogenesis were used as myogenesis indicators. Treatment with GA for 6 d resulted in an increase in the expression of differentiation markers (myosin heavy chain II and myogenic regulatory factors), mitochondrial biogenesis, and intracellular amounts of amino acids (glycine, serine, and alanine) and their metabolites (citric acid and succinic acid). In addition, GA treatment suppressed the 2.5-µM dexamethasone (Dex)-induced increase in mRNA levels of ubiquitin ligases (Trim63 and Fbxo32), muscle atrophy markers. These results indicate that GA promotes myogenesis, suppresses Dex-induced muscle atrophy, and is metabolized to amino acids in muscle cells. Although further in vivo experiments are needed, GA may be a beneficial nutrient for ameliorating the loss of muscle mass, strength, and function in patients with CKD on a strict dietary protein restriction.
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Affiliation(s)
- Toshio Norikura
- Department of Nutrition, Faculty of Health Science, Aomori University of Health and Welfare, Aomori 030-8505, Japan
| | - Yutaro Sasaki
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, Osaka 558-8585, Japan
| | - Akiko Kojima-Yuasa
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, Osaka 558-8585, Japan
| | - Atsushi Kon
- Department of Nutrition, Faculty of Health Science, Aomori University of Health and Welfare, Aomori 030-8505, Japan
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11
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Dalle Grave R, Calugi S, Ruocco C, Chimini M, Segala A, Ragni M, Carruba M, Valerio A, Nisoli E. Efficacy and tolerability of a specific blend of amino acids in patients with anorexia nervosa treated in a hospital setting: study protocol for a randomized controlled trial. Trials 2023; 24:104. [PMID: 36759873 PMCID: PMC9912576 DOI: 10.1186/s13063-023-07120-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Specific blends of essential amino acids (EAA) containing a high percentage of branched-chain amino acids preserves mitochondrial metabolism and higher physical resistance in elderly mice, increasing their survival and improving physical performance and cognitive functions in malnourished elderly patients. However, no study has been yet done on patients with anorexia nervosa (AN) who regain weight with specialized intensive treatment. The present study aims to evaluate the efficacy of supplementation with EAA on the change in lean body mass (LBM) and other physical and psychological outcomes in patients with AN who are undergoing specialist treatment for eating disorders. METHODS This is a 13-week randomized, double-blind, placebo-controlled study. Patients will be randomized to either a mixture of a complex blend of EAA and intermediates of the tricarboxylic acid (TCA) cycle (citrate, malate, succinate) supplementation (or placebo) upon admission at the intensive residential and day-hospital treatment for eating disorders. Ninety-two participants with AN aged 16-50 years will be recruited from a specialized intensive treatment of eating disorders. Double-blind assessment will be conducted at baseline (T0) and the end of the 13 weeks of treatment (T1). The study's primary aim is to evaluate the efficacy of supplementation with EAA and TCA intermediates on the change in lean body mass (LBM) with weight restoration in patients with AN who are undergoing specialist treatment for eating disorders. The secondary aims of the study are to assess the effect of dietary supplementation on physical fitness, weight restoration, modification of AN and general psychopathology, and psychosocial impairment. DISCUSSION The study's results will inform researchers and clinicians on whether supplementing a mixture of EAA and TCA cycle intermediates will improve the increase of LBM and other important physical and psychological outcomes in patients with AN who regain weight with specialized intensive treatment. TRIAL REGISTRATION NCT, NCT05290285. Registered on 22 March 2022.
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Affiliation(s)
- Riccardo Dalle Grave
- Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016, Verona, Italy.
| | - Simona Calugi
- grid.416990.30000 0004 1787 1136Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016 Verona, Italy
| | - Chiara Ruocco
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Mirko Chimini
- grid.416990.30000 0004 1787 1136Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016 Verona, Italy
| | - Agnese Segala
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, Brescia University, Viale Europa 11, 25123 Brescia, Italy
| | - Maurizio Ragni
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Michele Carruba
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Alessandra Valerio
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, Brescia University, Viale Europa 11, 25123 Brescia, Italy
| | - Enzo Nisoli
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
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12
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Li Q, Hoppe T. Role of amino acid metabolism in mitochondrial homeostasis. Front Cell Dev Biol 2023; 11:1127618. [PMID: 36923249 PMCID: PMC10008872 DOI: 10.3389/fcell.2023.1127618] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/16/2023] [Indexed: 03/03/2023] Open
Abstract
Mitochondria are central hubs for energy production, metabolism and cellular signal transduction in eukaryotic cells. Maintenance of mitochondrial homeostasis is important for cellular function and survival. In particular, cellular metabolic state is in constant communication with mitochondrial homeostasis. One of the most important metabolic processes that provide energy in the cell is amino acid metabolism. Almost all of the 20 amino acids that serve as the building blocks of proteins are produced or degraded in the mitochondria. The synthesis of the amino acids aspartate and arginine depends on the activity of the respiratory chain, which is essential for cell proliferation. The degradation of branched-chain amino acids mainly occurs in the mitochondrial matrix, contributing to energy metabolism, mitochondrial biogenesis, as well as protein quality control in both mitochondria and cytosol. Dietary supplementation or restriction of amino acids in worms, flies and mice modulates lifespan and health, which has been associated with changes in mitochondrial biogenesis, antioxidant response, as well as the activity of tricarboxylic acid cycle and respiratory chain. Consequently, impaired amino acid metabolism has been associated with both primary mitochondrial diseases and diseases with mitochondrial dysfunction such as cancer. Here, we present recent observations on the crosstalk between amino acid metabolism and mitochondrial homeostasis, summarise the underlying molecular mechanisms to date, and discuss their role in cellular functions and organismal physiology.
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Affiliation(s)
- Qiaochu Li
- Institute for Genetics and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Thorsten Hoppe
- Institute for Genetics and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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13
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Hintze S, Baber L, Hofmeister F, Jarmusch S, Todorow V, Mehaffey S, Tanganelli F, Ferrari U, Neuerburg C, Teupser D, Bidlingmaier M, Marques JG, Koletzko B, Schoser B, Drey M, Meinke P. Exploration of mitochondrial defects in sarcopenic hip fracture patients. Heliyon 2022; 8:e11143. [PMID: 36303924 PMCID: PMC9593198 DOI: 10.1016/j.heliyon.2022.e11143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/05/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Severe cases of age-related loss of muscle function and mass are clinically unique to sarcopenia. Mitochondrial dysfunction has been associated with aging and sarcopenia, but the causal connection in this context is not well eluded. Here we investigated different aspects of mitochondrial respiration in sarcopenia. Open muscle biopsies were taken from a total of 31 hip fracture patients, older than 70 years. Patients were assigned a sarcopenia Z-score based on EWGSOP2 criteria. Primary myoblast cultures were generated from the muscle tissue samples and used for real time metabolic measurement. Muscle and serum samples showed correlation of high Z-scores with reduced mitochondrial complex I activity, increased tricarboxylic acid cycle (TCA) metabolites, reduced vitamin D3 levels, and signs of an altered iron metabolism. Primary myoblast cultures gained from the same muscle biopsies did not show significant mitochondrial defects. We hypothesize that a sum of external consequences, including vitamin D3 deficiency and iron deficiency caused by disturbances in the iron metabolism, result in complex I deficiency, which in turn affects the TCA and contributes to muscle weakness and loss.
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Affiliation(s)
- Stefan Hintze
- Friedrich-Baur-Institute at the Department of Neurology, LMU Klinikum, LMU Munich, Germany
| | - Lisa Baber
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Fabian Hofmeister
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Stefanie Jarmusch
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Vanessa Todorow
- Friedrich-Baur-Institute at the Department of Neurology, LMU Klinikum, LMU Munich, Germany
| | - Stefan Mehaffey
- Department of General-, Trauma- and Reconstructive Surgery, LMU Klinikum, LMU Munich, Germany
| | - Fabiana Tanganelli
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Uta Ferrari
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Carl Neuerburg
- Department of General-, Trauma- and Reconstructive Surgery, LMU Klinikum, LMU Munich, Germany
| | - Daniel Teupser
- Institute of Laboratory Medicine, LMU Klinikum, LMU Munich, Germany
| | | | - Jair Gonzalez Marques
- Department Pediatrics, Dr. von Hauner Children's Hospital, LMU Klinikum, LMU Munich, Germany
| | - Berthold Koletzko
- Department Pediatrics, Dr. von Hauner Children's Hospital, LMU Klinikum, LMU Munich, Germany
| | - Benedikt Schoser
- Friedrich-Baur-Institute at the Department of Neurology, LMU Klinikum, LMU Munich, Germany
| | - Michael Drey
- Department of Medicine IV, Geriatrics, LMU Klinikum, LMU Munich, Germany
| | - Peter Meinke
- Friedrich-Baur-Institute at the Department of Neurology, LMU Klinikum, LMU Munich, Germany
- Corresponding author.
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14
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Bajia D, Bottani E, Derwich K. Effects of Noonan Syndrome-Germline Mutations on Mitochondria and Energy Metabolism. Cells 2022; 11:cells11193099. [PMID: 36231062 PMCID: PMC9563972 DOI: 10.3390/cells11193099] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/21/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Noonan syndrome (NS) and related Noonan syndrome with multiple lentigines (NSML) contribute to the pathogenesis of human diseases in the RASopathy family. This family of genetic disorders constitute one of the largest groups of developmental disorders with variable penetrance and severity, associated with distinctive congenital disabilities, including facial features, cardiopathies, growth and skeletal abnormalities, developmental delay/mental retardation, and tumor predisposition. NS was first clinically described decades ago, and several genes have since been identified, providing a molecular foundation to understand their physiopathology and identify targets for therapeutic strategies. These genes encode proteins that participate in, or regulate, RAS/MAPK signalling. The RAS pathway regulates cellular metabolism by controlling mitochondrial homeostasis, dynamics, and energy production; however, little is known about the role of mitochondrial metabolism in NS and NSML. This manuscript comprehensively reviews the most frequently mutated genes responsible for NS and NSML, covering their role in the current knowledge of cellular signalling pathways, and focuses on the pathophysiological outcomes on mitochondria and energy metabolism.
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Affiliation(s)
- Donald Bajia
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Ul. Fredry 10, 61701 Poznan, Poland
| | - Emanuela Bottani
- Department of Diagnostics and Public Health, Section of Pharmacology, University of Verona, Piazzale L. A. Scuro 10, 37134 Verona, Italy
- Correspondence: (E.B.); (K.D.); Tel.: +39-3337149584 (E.B.); +48-504199285 (K.D.)
| | - Katarzyna Derwich
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Ul. Fredry 10, 61701 Poznan, Poland
- Correspondence: (E.B.); (K.D.); Tel.: +39-3337149584 (E.B.); +48-504199285 (K.D.)
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15
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Shimizu S, Kasai S, Yamazaki H, Tatara Y, Mimura J, Engler MJ, Tanji K, Nikaido Y, Inoue T, Suganuma H, Wakabayashi K, Itoh K. Sulforaphane Increase Mitochondrial Biogenesis-Related Gene Expression in the Hippocampus and Suppresses Age-Related Cognitive Decline in Mice. Int J Mol Sci 2022; 23:ijms23158433. [PMID: 35955572 PMCID: PMC9369397 DOI: 10.3390/ijms23158433] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/22/2022] Open
Abstract
Sulforaphane (SFN) is a potent activator of the transcriptional factor, Nuclear Factor Erythroid 2 (NF-E2)-Related factor 2 (NRF2). SFN and its precursor, glucoraphanin (sulforaphane glucosinolate, SGS), have been shown to ameliorate cognitive function in clinical trials and in vivo studies. However, the effects of SGS on age-related cognitive decline in Senescence-Accelerated Mouse Prone 8 (SAMP8) is unknown. In this study, we determined the preventive potential of SGS on age-related cognitive decline. One-month old SAMP8 mice or control SAM resistance 1 (SAMR1) mice were fed an ad libitum diet with or without SGS-containing broccoli sprout powder (0.3% w/w SGS in diet) until 13 months of age. SGS significantly improved long-term memory in SAMP8 at 12 months of age. Interestingly, SGS increased hippocampal mRNA and protein levels of peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC1α) and mitochondrial transcription factor A (TFAM), which are master regulators of mitochondrial biogenesis, both in SAMR1 and SAMP8 at 13 months of age. Furthermore, mRNAs for nuclear respiratory factor-1 (NRF-1) and mitochondrial DNA-encoded respiratory complex enzymes, but not mitochondrial DNA itself, were increased by SGS in SAMP8 mice. These results suggest that SGS prevents age-related cognitive decline by maintaining mitochondrial function in senescence-accelerated mice.
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Affiliation(s)
- Sunao Shimizu
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Shuya Kasai
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Hiromi Yamazaki
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Yota Tatara
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Junsei Mimura
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Máté János Engler
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Kunikazu Tanji
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (K.T.); (K.W.)
| | - Yoshikazu Nikaido
- Department of Metabolomics Innovation, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Takuro Inoue
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
| | - Koichi Wakabayashi
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (K.T.); (K.W.)
| | - Ken Itoh
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
- Correspondence:
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16
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Tosato M, Ciciarello F, Zazzara MB, Pais C, Savera G, Picca A, Galluzzo V, Coelho-Júnior HJ, Calvani R, Marzetti E, Landi F. Nutraceuticals and Dietary Supplements for Older Adults with Long COVID. Clin Geriatr Med 2022; 38:565-591. [PMID: 35868674 PMCID: PMC9212635 DOI: 10.1016/j.cger.2022.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Matteo Tosato
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Francesca Ciciarello
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Maria Beatrice Zazzara
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Cristina Pais
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Giulia Savera
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Anna Picca
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Vincenzo Galluzzo
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy
| | - Hélio José Coelho-Júnior
- Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 8, Rome 00168, Italy
| | - Riccardo Calvani
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy.
| | - Emanuele Marzetti
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy; Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 8, Rome 00168, Italy
| | - Francesco Landi
- Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, L.go A. Gemelli 8, Rome 00168, Italy; Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 8, Rome 00168, Italy
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17
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Rivera ME, Rivera CN, Vaughan RA. Excess branched-chain amino acids alter myotube metabolism and substrate preference which is worsened by concurrent insulin resistance. Endocrine 2022; 76:18-28. [PMID: 34811646 DOI: 10.1007/s12020-021-02939-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/02/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE Branched-chain amino acids (BCAA) have been shown to enhance several cellular signaling pathways including protein synthesis and mitochondrial biogenesis, yet population data demonstrate a correlation between circulating BCAA and severity of insulin resistance which has been hypothesized to be, in part, a byproduct of BCAA inhibition of mitochondrial function. The purpose of this study is to examine the effect of a BCAA mixture on muscle metabolism and related gene expression in vitro. METHODS C2C12 myotubes were treated with a BCAA mixture containing leucine:isoleucine:valine at a ratio of 2:1:1 at 0.2, 2, or 20 mM (based on leucine content) for 6 days. qRT-PCR was used to measure metabolic gene expression. Oxygen consumption and extracellular acidification were used to assess mitochondrial and glycolytic metabolism, respectively. Mitochondrial content was determined via mitochondrial-specific staining. RESULTS Despite significantly elevated mitochondrial staining, 6-day BCAA treatment reduced basal mitochondrial metabolism at a supraphysiological concentration (20 mM) in both insulin sensitive and resistant cells. Peak mitochondrial capacity was also reduced in insulin-resistant (but not insulin sensitive) cells. Conversely, basal glycolytic metabolism was elevated following 20 mM BCAA treatment, regardless of insulin resistance. In addition, insulin-resistant cells treated with 20 mM BCAA exhibited reduced gene expression of Ppargc1a, Cytc, Atp5b, Glut4, and several glycolytic enzymes versus insulin sensitive cells treated with 20 mM BCAA. CONCLUSIONS Collectively, these findings suggest BCAA at supraphysiologically high levels may negatively alter mitochondrial metabolism, and concurrent insulin resistance may also diminish peak mitochondrial capacity, as well as impede molecular adaptations that support a transition to a glycolytic preference/compensation.
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Affiliation(s)
- Madison E Rivera
- Department of Exercise Science, High Point University, High Point, NC, USA
| | - Caroline N Rivera
- Department of Exercise Science, High Point University, High Point, NC, USA
| | - Roger A Vaughan
- Department of Exercise Science, High Point University, High Point, NC, USA.
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18
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Dolci S, Mannino L, Bottani E, Campanelli A, Di Chio M, Zorzin S, D'Arrigo G, Amenta A, Segala A, Paglia G, Denti V, Fumagalli G, Nisoli E, Valerio A, Verderio C, Martano G, Bifari F, Decimo I. Therapeutic Induction of Energy Metabolism Reduces Neural Tissue Damage and Increases Microglia Activation in Severe Spinal Cord Injury. Pharmacol Res 2022; 178:106149. [PMID: 35240272 DOI: 10.1016/j.phrs.2022.106149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/16/2022] [Accepted: 02/26/2022] [Indexed: 01/11/2023]
Abstract
Neural tissue has high metabolic requirements. Following spinal cord injury (SCI), the damaged, tissue suffers from a severe metabolic impairment, which aggravates axonal degeneration and, neuronal loss. Impaired cellular energetic, tricarboxylic acid (TCA) cycle and oxidative, phosphorylation metabolism in neuronal cells has been demonstrated to be a major cause of neural tissue death and regeneration failure following SCI. Therefore, rewiring the spinal cord cell metabolism may be an innovative therapeutic strategy for the treatment of SCI. In this study, we evaluated the therapeutic effect of the recovery of oxidative metabolism in a mouse model of severe contusive SCI. Oral administration of TCA cycle intermediates, co-factors, essential amino acids, and branched-chain amino acids was started 3 days post-injury and continued until the end of the experimental procedures. Metabolomic, immunohistological, and biochemical analyses were performed on the injured spinal cord sections. Administration of metabolic precursors enhanced spinal cord oxidative metabolism. In line with this metabolic shift, we observed the activation of the mTORC1 anabolic pathway, the increase in mitochondrial mass, and ROS defense which effectively prevented the injury-induced neural cell apoptosis in treated animals. Consistently, we found more choline acetyltransferase (ChAT)-expressing motor neurons and increased neurofilament positive corticospinal axons in the spinal cord parenchyma of the treated mice. Interestingly, oral administration of the metabolic precursors increased the number of activated microglia expressing the CD206 marker suggestive of a, pro-resolutive, M2-like phenotype. These molecular and histological modifications observed in treated animals ultimately led to a significant, although partial, improvement of the motor functions. Our data demonstrate that rewiring the cellular metabolism can represent an effective strategy to treat SCI.
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Affiliation(s)
- Sissi Dolci
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Loris Mannino
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Emanuela Bottani
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Alessandra Campanelli
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Marzia Di Chio
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Stefania Zorzin
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | | | - Alessia Amenta
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20133, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, University of Brescia, 25121, Italy
| | - Giuseppe Paglia
- School of Medicine and Surgery, Università degli Studi di Milano-Bicocca, 20126, Italy
| | - Vanna Denti
- School of Medicine and Surgery, Università degli Studi di Milano-Bicocca, 20126, Italy
| | - Guido Fumagalli
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20133, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25121, Italy
| | | | | | - Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20133, Italy.
| | - Ilaria Decimo
- Department of Diagnostic and Public Health, Section of Pharmacology, University of Verona, 37134, Italy.
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19
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Chen LH, Chang SS, Chang HY, Wu CH, Pan CH, Chang CC, Chan CH, Huang HY. Probiotic supplementation attenuates age-related sarcopenia via the gut-muscle axis in SAMP8 mice. J Cachexia Sarcopenia Muscle 2022; 13:515-531. [PMID: 34766473 PMCID: PMC8818665 DOI: 10.1002/jcsm.12849] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/19/2021] [Accepted: 10/01/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Age-related muscle dysfunctions are common disorders resulting in poor quality of life in the elderly. Probiotic supplementation is a potential strategy for preventing age-related sarcopenia as evidence suggests that probiotics can enhance muscle function via the gut-muscle axis. However, the effects and mechanisms of probiotics in age-related sarcopenia are currently unknown. In this study, we examined the effects of Lactobacillus casei Shirota (LcS), a probiotic previously reported to improve muscle function in young adult mice. METHODS We administered LcS (1 × 108 or 1 × 109 CFU/mouse/day) by oral gavage to senescence-accelerated mouse prone-8 mice for 12 weeks (16- to 28-week-old). Sixteen-week-old and 28-week-old SMAP8 mice were included as non-aged and aged controls, respectively. Muscle condition was evaluated using dual-energy X-ray absorptiometry for muscle mass, holding impulse and grip strength tests for muscle strength, and oxygen consumption rate, gene expressions of mitochondrial biogenesis, and mitochondrial number assays for mitochondria function. Inflammatory cytokines were determined using enzyme-linked immunosorbent assay. Gas chromatography-mass spectrometry was utilized to measure the short-chain fatty acid levels. The gut microbiota was analysed based on the data of 16S rRNA gene sequencing of mouse stool. RESULTS The LcS supplementation reduced age-related declines in muscle mass (>94.6%, P < 0.04), strength (>66% in holding impulse and >96.3% in grip strength, P < 0.05), and mitochondrial function (P < 0.05). The concentration of short-chain fatty acids (acetic, isobutyric, butyric, penic, and hexanoic acid) was recovered by LcS (>65.9% in the mice given high dose of LcS, P < 0.05) in the aged mice, and LcS attenuated age-related increases in inflammation (P < 0.05) and reactive oxygen species (>89.4%, P < 0.001). The high dose of LcS supplementation was also associated with distinct microbiota composition as indicated by the separation of groups in the beta-diversity analysis (P = 0.027). LcS supplementation altered predicted bacterial functions based on the gut microbiota. Apoptosis (P = 0.026), p53 signalling (P = 0.017), and non-homologous end-joining (P = 0.031) were significantly reduced, whereas DNA repair and recombination proteins (P = 0.043), RNA polymerase (P = 0.008), and aminoacyl-tRNA biosynthesis (P = 0.003) were increased. Finally, the genera enriched by high-dose LcS [linear discriminant analysis (LDA) score > 2.0] were positively correlated with healthy muscle and physiological condition (P < 0.05), while the genera enriched in aged control mice (LDA score > 2.0) were negatively associated with healthy muscle and physiological condition (P < 0.05). CONCLUSIONS Lactobacillus casei Shirota represents an active modulator that regulates the onset and progression of age-related muscle impairment potentially via the gut-muscle axis.
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Affiliation(s)
- Li-Han Chen
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan.,Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Shy-Shin Chang
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Family Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsin-Yi Chang
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Master Program in Clinical Pharmacogenomics and Pharmacoproteomics, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chieh-Hsi Wu
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chun-Hsu Pan
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ching-Hung Chan
- Department of Chemical Engineering and Biotechnology, Tatung University, Taipei, Taiwan
| | - Hui-Yu Huang
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
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20
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Ciarpella F, Zamfir RG, Campanelli A, Ren E, Pedrotti G, Bottani E, Borioli A, Caron D, Di Chio M, Dolci S, Ahtiainen A, Malpeli G, Malerba G, Bardoni R, Fumagalli G, Hyttinen J, Bifari F, Palazzolo G, Panuccio G, Curia G, Decimo I. Murine cerebral organoids develop network of functional neurons and hippocampal brain region identity. iScience 2021; 24:103438. [PMID: 34901791 PMCID: PMC8640475 DOI: 10.1016/j.isci.2021.103438] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 10/13/2021] [Accepted: 11/10/2021] [Indexed: 12/12/2022] Open
Abstract
Brain organoids are in vitro three-dimensional (3D) self-organized neural structures, which can enable disease modeling and drug screening. However, their use for standardized large-scale drug screening studies is limited by their high batch-to-batch variability, long differentiation time (10-20 weeks), and high production costs. This is particularly relevant when brain organoids are obtained from human induced pluripotent stem cells (iPSCs). Here, we developed, for the first time, a highly standardized, reproducible, and fast (5 weeks) murine brain organoid model starting from embryonic neural stem cells. We obtained brain organoids, which progressively differentiated and self-organized into 3D networks of functional neurons with dorsal forebrain phenotype. Furthermore, by adding the morphogen WNT3a, we generated brain organoids with specific hippocampal region identity. Overall, our results showed the establishment of a fast, robust and reproducible murine 3D in vitro brain model that may represent a useful tool for high-throughput drug screening and disease modeling.
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Affiliation(s)
- Francesca Ciarpella
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Raluca Georgiana Zamfir
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Alessandra Campanelli
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Elisa Ren
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Giulia Pedrotti
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Emanuela Bottani
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Andrea Borioli
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Davide Caron
- Department of Neuroscience and Brain Technologies (NBT), Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Marzia Di Chio
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Sissi Dolci
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Annika Ahtiainen
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Giorgio Malpeli
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona, 37134 Verona, Italy
| | - Giovanni Malerba
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy
| | - Rita Bardoni
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Guido Fumagalli
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Jari Hyttinen
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20133 Milan, Italy
| | - Gemma Palazzolo
- Department of Neuroscience and Brain Technologies (NBT), Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Gabriella Panuccio
- Department of Neuroscience and Brain Technologies (NBT), Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Giulia Curia
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Ilaria Decimo
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, P.le Scuro 10, 37134 Verona, Italy
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21
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Shida Y, Endo H, Owada S, Inagaki Y, Sumiyoshi H, Kamiya A, Eto T, Tatemichi M. Branched-chain amino acids govern the high learning ability phenotype in Tokai high avoider (THA) rats. Sci Rep 2021; 11:23104. [PMID: 34845278 PMCID: PMC8630195 DOI: 10.1038/s41598-021-02591-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 11/19/2021] [Indexed: 11/09/2022] Open
Abstract
To fully understand the mechanisms governing learning and memory, animal models with minor interindividual variability and higher cognitive function are required. THA rats established by crossing those with high learning capacity exhibit excellent learning and memory abilities, but the factors underlying their phenotype are completely unknown. In the current study, we compare the hippocampi of parental strain Wistar rats to those of THA rats via metabolomic analysis in order to identify molecules specific to the THA rat hippocampus. Higher branched-chain amino acid (BCAA) levels and enhanced activation of BCAA metabolism-associated enzymes were observed in THA rats, suggesting that acetyl-CoA and acetylcholine are synthesized through BCAA catabolism. THA rats maintained high blood BCAA levels via uptake of BCAAs in the small intestine and suppression of BCAA catabolism in the liver. Feeding THA rats with a BCAA-reduced diet decreased acetylcholine levels and learning ability, thus, maintaining high BCAA levels while their proper metabolism in the hippocampus is the mechanisms underlying the high learning ability in THA rats. Identifying appropriate BCAA nutritional supplements and activation methods may thus hold potential for the prevention and amelioration of higher brain dysfunction, including learning disabilities and dementia.
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Affiliation(s)
- Yukari Shida
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hitoshi Endo
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Satoshi Owada
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yutaka Inagaki
- Center for Matrix Biology and Medicine, Department of Innovative Medical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hideaki Sumiyoshi
- Center for Matrix Biology and Medicine, Department of Innovative Medical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Akihide Kamiya
- Department of Molecular Life Sciences, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Tomoo Eto
- Central Institute for Experimental Animals, 3-25-12 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
| | - Masayuki Tatemichi
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
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22
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Lee YH, Park JY, Lee H, Song ES, Kuk MU, Joo J, Oh S, Kwon HW, Park JT, Park SC. Targeting Mitochondrial Metabolism as a Strategy to Treat Senescence. Cells 2021; 10:cells10113003. [PMID: 34831224 PMCID: PMC8616445 DOI: 10.3390/cells10113003] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are one of organelles that undergo significant changes associated with senescence. An increase in mitochondrial size is observed in senescent cells, and this increase is ascribed to the accumulation of dysfunctional mitochondria that generate excessive reactive oxygen species (ROS). Such dysfunctional mitochondria are prime targets for ROS-induced damage, which leads to the deterioration of oxidative phosphorylation and increased dependence on glycolysis as an energy source. Based on findings indicating that senescent cells exhibit mitochondrial metabolic alterations, a strategy to induce mitochondrial metabolic reprogramming has been proposed to treat aging and age-related diseases. In this review, we discuss senescence-related mitochondrial changes and consequent mitochondrial metabolic alterations. We assess the significance of mitochondrial metabolic reprogramming for senescence regulation and propose the appropriate control of mitochondrial metabolism to ameliorate senescence. Learning how to regulate mitochondrial metabolism will provide knowledge for the control of aging and age-related pathologies. Further research focusing on mitochondrial metabolic reprogramming will be an important guide for the development of anti-aging therapies, and will provide novel strategies for anti-aging interventions.
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Affiliation(s)
- Yun Haeng Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Ji Yun Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Haneur Lee
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Eun Seon Song
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Myeong Uk Kuk
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Junghyun Joo
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
| | - Sekyung Oh
- Department of Medical Sciences, Catholic Kwandong University College of Medicine, Incheon 22711, Korea;
| | - Hyung Wook Kwon
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
| | - Joon Tae Park
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Korea; (Y.H.L.); (J.Y.P.); (H.L.); (E.S.S.); (M.U.K.); (J.J.)
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
| | - Sang Chul Park
- The Future Life & Society Research Center, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (H.W.K.); (J.T.P.); ; (S.C.P.); Tel.: +82-32-835-8090 (H.W.K.); +82-32-835-8841 (J.T.P.); +82-10-5495-9200 (S.C.P.)
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23
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Roberts FL, Markby GR. New Insights into Molecular Mechanisms Mediating Adaptation to Exercise; A Review Focusing on Mitochondrial Biogenesis, Mitochondrial Function, Mitophagy and Autophagy. Cells 2021; 10:cells10102639. [PMID: 34685618 PMCID: PMC8533934 DOI: 10.3390/cells10102639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 12/25/2022] Open
Abstract
Exercise itself is fundamental for good health, and when practiced regularly confers a myriad of metabolic benefits in a range of tissues. These benefits are mediated by a range of adaptive responses in a coordinated, multi-organ manner. The continued understanding of the molecular mechanisms of action which confer beneficial effects of exercise on the body will identify more specific pathways which can be manipulated by therapeutic intervention in order to prevent or treat various metabolism-associated diseases. This is particularly important as exercise is not an available option to all and so novel methods must be identified to confer the beneficial effects of exercise in a therapeutic manner. This review will focus on key emerging molecular mechanisms of mitochondrial biogenesis, autophagy and mitophagy in selected, highly metabolic tissues, describing their regulation and contribution to beneficial adaptations to exercise.
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Wang S, Sun-Waterhouse D, Neil Waterhouse GI, Zheng L, Su G, Zhao M. Effects of food-derived bioactive peptides on cognitive deficits and memory decline in neurodegenerative diseases: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.04.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Brunetti D, Catania A, Viscomi C, Deleidi M, Bindoff LA, Ghezzi D, Zeviani M. Role of PITRM1 in Mitochondrial Dysfunction and Neurodegeneration. Biomedicines 2021; 9:biomedicines9070833. [PMID: 34356897 PMCID: PMC8301332 DOI: 10.3390/biomedicines9070833] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/19/2022] Open
Abstract
Mounting evidence shows a link between mitochondrial dysfunction and neurodegenerative disorders, including Alzheimer Disease. Increased oxidative stress, defective mitodynamics, and impaired oxidative phosphorylation leading to decreased ATP production, can determine synaptic dysfunction, apoptosis, and neurodegeneration. Furthermore, mitochondrial proteostasis and the protease-mediated quality control system, carrying out degradation of potentially toxic peptides and misfolded or damaged proteins inside mitochondria, are emerging as potential pathogenetic mechanisms. The enzyme pitrilysin metallopeptidase 1 (PITRM1) is a key player in these processes; it is responsible for degrading mitochondrial targeting sequences that are cleaved off from the imported precursor proteins and for digesting a mitochondrial fraction of amyloid beta (Aβ). In this review, we present current evidence obtained from patients with PITRM1 mutations, as well as the different cellular and animal models of PITRM1 deficiency, which points toward PITRM1 as a possible driving factor of several neurodegenerative conditions. Finally, we point out the prospect of new diagnostic and therapeutic approaches.
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Affiliation(s)
- Dario Brunetti
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy;
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy;
| | - Alessia Catania
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy;
| | - Carlo Viscomi
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy;
| | - Michela Deleidi
- German Center for Neurodegenerative Diseases (DZNE), 72076 Tübingen, Germany;
| | - Laurence A. Bindoff
- Neuro-SysMed, Center of Excellence for Clinical Research in Neurological Diseases, Haukeland University Hospital, N-5021 Bergen, Norway;
- Department of Clinical Medicine, University of Bergen, N-5021 Bergen, Norway
| | - Daniele Ghezzi
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy;
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
- Correspondence: (D.G.); (M.Z.)
| | - Massimo Zeviani
- Department of Neurosciences, University of Padova, 35128 Padova, Italy
- Venetian Institute of Molecular Medicine, 35128 Padova, Italy
- Correspondence: (D.G.); (M.Z.)
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Nrf2 Activation Attenuates Acrylamide-Induced Neuropathy in Mice. Int J Mol Sci 2021; 22:ijms22115995. [PMID: 34206048 PMCID: PMC8199319 DOI: 10.3390/ijms22115995] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 05/29/2021] [Accepted: 05/30/2021] [Indexed: 01/18/2023] Open
Abstract
Acrylamide is a well characterized neurotoxicant known to cause neuropathy and encephalopathy in humans and experimental animals. To investigate the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in acrylamide-induced neuropathy, male C57Bl/6JJcl adult mice were exposed to acrylamide at 0, 200 or 300 ppm in drinking water and co-administered with subcutaneous injections of sulforaphane, a known activator of the Nrf2 signaling pathway at 0 or 25 mg/kg body weight daily for 4 weeks. Assessments for neurotoxicity, hepatotoxicity, oxidative stress as well as messenger RNA-expression analysis for Nrf2-antioxidant and pro-inflammatory cytokine genes were conducted. Relative to mice exposed only to acrylamide, co-administration of sulforaphane protected against acrylamide-induced neurotoxic effects such as increase in landing foot spread or decrease in density of noradrenergic axons as well as hepatic necrosis and hemorrhage. Moreover, co-administration of sulforaphane enhanced acrylamide-induced mRNA upregulation of Nrf2 and its downstream antioxidant proteins and suppressed acrylamide-induced mRNA upregulation of tumor necrosis factor alpha (TNF-α) and inducible nitric oxide synthase (iNOS) in the cerebral cortex. The results demonstrate that activation of the Nrf2 signaling pathway by co-treatment of sulforaphane provides protection against acrylamide-induced neurotoxicity through suppression of oxidative stress and inflammation. Nrf2 remains an important target for the strategic prevention of acrylamide-induced neurotoxicity.
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An Examination of Lactobacillus paracasei GKS6 and Bifidobacterium lactis GKK2 Isolated from Infant Feces in an Aged Mouse Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6692363. [PMID: 33927778 PMCID: PMC8052140 DOI: 10.1155/2021/6692363] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/01/2021] [Accepted: 03/10/2021] [Indexed: 01/27/2023]
Abstract
Supplementary which could maintain normal physiological mechanisms and functions while aging has drawn our attention due to the population aging in recent years. Probiotics have been believed with desirable properties such as antioxidation and anti-inflammatory for delaying the aging process. However, the age-related experiments conducted in the mammalian models with probiotics were few. In this study, we demonstrated the effects of administration of probiotics Lactobacillus paracasei GKS6 (GKS6) and Bifidobacterium lactis GKK2 (GKK2), respectively, at the dosage of 5.0 × 109 cfu/kg BW/day for fourteen weeks in senescence-accelerated mouse prone 8 (SAMP8) mice. The three-month-old SAMP8 mice were divided into three groups: control, mice fed with GKS6, and mice fed with GKK2. There were ten females and ten males in each group. The SAMP8 mice fed with probiotics GKS6 and GKK2 showed a significantly lower degree of aging followed by Takeda's grading method on the eleventh week of the experiment. The GKK2 group showed significantly increased forelimb grip strength in male SAMP8 mice and muscle fiber number in both genders. Compared to the control, both GKS6 and GKK2 presented a significant increase in liver superoxide dismutase and catalase activities. In addition, a significant decrease in the levels of liver thiobarbituric acid-reactive substances was observed in the probiotics group. These results suggested that probiotics GKS6 and GKK2 could act as antioxidants in delaying the process of aging and preventing age-related muscle loss.
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Ruocco C, Segala A, Valerio A, Nisoli E. Essential amino acid formulations to prevent mitochondrial dysfunction and oxidative stress. Curr Opin Clin Nutr Metab Care 2021; 24:88-95. [PMID: 33060458 DOI: 10.1097/mco.0000000000000704] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Both restriction and supplementation of specific amino acids or branched-chain amino acids (BCAAs) are described to improve metabolic homeostasis, energy balance, and health span. This review will discuss the recent findings of the role of amino acid supplements in the regulation of mitochondrial health. RECENT FINDINGS A mixture of essential amino acids (EAAs), BCAA enriched mixture, was found to extend healthy life span in elderly mice and prevent multiple diseases associated with an energy deficit, similarly to caloric restriction or fasting-mimicking diets. A growing body of evidence highlights mitochondria as the central target of this supplement: it promotes mitochondrial biogenesis and the activation of antioxidant defence systems in different physiological (e.g., exercise or ageing) or pathological conditions (e.g., sarcopenia, muscular dystrophy, liver steatosis, or impaired cognition). Based on these results, new formulas have been created enriched with Krebs cycle substrates, behaving more efficiently than BCAA enriched mixture. SUMMARY EAA-BCAA balanced supplements might be valuable not only for healthy individuals undergoing to energy deficit (e.g., athletes) during strenuous exercise or training but also against diseases characterized by a dysregulated catabolic state or mitochondrial dysfunction, such as age-related disorders. The associated mechanistic processes should be identified as potential pharmacological targets.
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Affiliation(s)
- Chiara Ruocco
- Department of Biomedical Technology and Translational Medicine, Center for Study and Research on Obesity, University of Milan, Milan
| | - Agnese Segala
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Enzo Nisoli
- Department of Biomedical Technology and Translational Medicine, Center for Study and Research on Obesity, University of Milan, Milan
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Bottani E, Lamperti C, Prigione A, Tiranti V, Persico N, Brunetti D. Therapeutic Approaches to Treat Mitochondrial Diseases: "One-Size-Fits-All" and "Precision Medicine" Strategies. Pharmaceutics 2020; 12:E1083. [PMID: 33187380 PMCID: PMC7696526 DOI: 10.3390/pharmaceutics12111083] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Primary mitochondrial diseases (PMD) refer to a group of severe, often inherited genetic conditions due to mutations in the mitochondrial genome or in the nuclear genes encoding for proteins involved in oxidative phosphorylation (OXPHOS). The mutations hamper the last step of aerobic metabolism, affecting the primary source of cellular ATP synthesis. Mitochondrial diseases are characterized by extremely heterogeneous symptoms, ranging from organ-specific to multisystemic dysfunction with different clinical courses. The limited information of the natural history, the limitations of currently available preclinical models, coupled with the large variability of phenotypical presentations of PMD patients, have strongly penalized the development of effective therapies. However, new therapeutic strategies have been emerging, often with promising preclinical and clinical results. Here we review the state of the art on experimental treatments for mitochondrial diseases, presenting "one-size-fits-all" approaches and precision medicine strategies. Finally, we propose novel perspective therapeutic plans, either based on preclinical studies or currently used for other genetic or metabolic diseases that could be transferred to PMD.
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Affiliation(s)
- Emanuela Bottani
- Department of Diagnostics and Public Health, Section of Pharmacology, University of Verona, 37134 Verona, Italy
| | - Costanza Lamperti
- Medical Genetics and Neurogenetics Unit, Fondazione IRCCS Istituto Neurologico C. Besta, 20126 Milan, Italy; (C.L.); (V.T.)
| | - Alessandro Prigione
- Department of General Pediatrics, Neonatology, and Pediatric Cardiology, University Clinic Düsseldorf (UKD), Heinrich Heine University (HHU), 40225 Dusseldorf, Germany;
| | - Valeria Tiranti
- Medical Genetics and Neurogenetics Unit, Fondazione IRCCS Istituto Neurologico C. Besta, 20126 Milan, Italy; (C.L.); (V.T.)
| | - Nicola Persico
- Department of Clinical Science and Community Health, University of Milan, 20122 Milan, Italy;
- Fetal Medicine and Surgery Service, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Dario Brunetti
- Medical Genetics and Neurogenetics Unit, Fondazione IRCCS Istituto Neurologico C. Besta, 20126 Milan, Italy; (C.L.); (V.T.)
- Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
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30
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Ruocco C, Ragni M, Rossi F, Carullo P, Ghini V, Piscitelli F, Cutignano A, Manzo E, Ioris RM, Bontems F, Tedesco L, Greco CM, Pino A, Severi I, Liu D, Ceddia RP, Ponzoni L, Tenori L, Rizzetto L, Scholz M, Tuohy K, Bifari F, Di Marzo V, Luchinat C, Carruba MO, Cinti S, Decimo I, Condorelli G, Coppari R, Collins S, Valerio A, Nisoli E. Manipulation of Dietary Amino Acids Prevents and Reverses Obesity in Mice Through Multiple Mechanisms That Modulate Energy Homeostasis. Diabetes 2020; 69:2324-2339. [PMID: 32778569 PMCID: PMC7576563 DOI: 10.2337/db20-0489] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/06/2020] [Indexed: 12/12/2022]
Abstract
Reduced activation of energy metabolism increases adiposity in humans and other mammals. Thus, exploring dietary and molecular mechanisms able to improve energy metabolism is of paramount medical importance because such mechanisms can be leveraged as a therapy for obesity and related disorders. Here, we show that a designer protein-deprived diet enriched in free essential amino acids can 1) promote the brown fat thermogenic program and fatty acid oxidation, 2) stimulate uncoupling protein 1 (UCP1)-independent respiration in subcutaneous white fat, 3) change the gut microbiota composition, and 4) prevent and reverse obesity and dysregulated glucose homeostasis in multiple mouse models, prolonging the healthy life span. These effects are independent of unbalanced amino acid ratio, energy consumption, and intestinal calorie absorption. A brown fat-specific activation of the mechanistic target of rapamycin complex 1 seems involved in the diet-induced beneficial effects, as also strengthened by in vitro experiments. Hence, our results suggest that brown and white fat may be targets of specific amino acids to control UCP1-dependent and -independent thermogenesis, thereby contributing to the improvement of metabolic health.
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Affiliation(s)
- Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Pierluigi Carullo
- IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
- Institute of Genetic and Biomedical Research, National Research Council, Rozzano, Italy
| | - Veronica Ghini
- Interuniversity Consortium for Magnetic Resonance, Sesto Fiorentino, Italy
| | - Fabiana Piscitelli
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Adele Cutignano
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Emiliano Manzo
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Rafael Maciel Ioris
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Franck Bontems
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Laura Tedesco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | | | - Annachiara Pino
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Ilenia Severi
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Center of Obesity, Ancona, Italy
| | - Dianxin Liu
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ryan P Ceddia
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Luisa Ponzoni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
- Institute of Neuroscience, National Research Council, Milan, Italy
| | - Leonardo Tenori
- FiorGen Foundation, Sesto Fiorentino, Italy
- Center of Magnetic Resonance, University of Florence, Sesto Fiorentino, Italy
| | - Lisa Rizzetto
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Matthias Scholz
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Kieran Tuohy
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Vincenzo Di Marzo
- Canada Excellence Research Chair Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada
- Joint International Research Unit for Chemical and Biochemical Research on the Microbiome and Its Impact on Metabolic Health and Nutrition, Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy and Université Laval, Quebec City, Canada
| | - Claudio Luchinat
- Interuniversity Consortium for Magnetic Resonance, Sesto Fiorentino, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Center of Obesity, Ancona, Italy
| | - Ilaria Decimo
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Gianluigi Condorelli
- IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
- Institute of Genetic and Biomedical Research, National Research Council, Rozzano, Italy
- Humanitas University, Rozzano, Italy
| | - Roberto Coppari
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sheila Collins
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
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