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Ferreira JCB, Moreira JBN, Campos JC, Pereira MG, Mattos KC, Coelho MA, Brum PC. Retraction notice to "Angiotensin receptor blockade improves the net balance of cardiac Ca 2+ handling-related proteins in sympathetic hyperactivity-induced heart failure" [Life Sci. 88/13-14 (2011) 578-585]. Life Sci 2024; 345:122603. [PMID: 38575467 DOI: 10.1016/j.lfs.2024.122603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Affiliation(s)
- Julio C B Ferreira
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Jose B N Moreira
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Juliane C Campos
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Marcelo G Pereira
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Katt C Mattos
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Marcele A Coelho
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
| | - Patricia C Brum
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
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2
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Ferreira JCB, Campos JC, Qvit N, Qi X, Bozi LHM, Bechara LRG, Lima VM, Queliconi BB, Disatnik MH, Dourado PMM, Kowaltowski AJ, Mochly-Rosen D. Author Correction: A selective inhibitor of mitofusin 1-βIIPKC association improves heart failure outcome in rats. Nat Commun 2024; 15:2889. [PMID: 38570501 PMCID: PMC10991558 DOI: 10.1038/s41467-024-47288-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Affiliation(s)
- Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil.
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA.
| | - Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Nir Qvit
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
| | - Xin Qi
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
- Department of Physiology & Biophysics, Case Western Reserve University, Cleveland, 44106, OH, USA
| | - Luiz H M Bozi
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Bruno B Queliconi
- Departamento de Bioquímica, Instituto de Química, Universidade de Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Marie-Helene Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
| | - Paulo M M Dourado
- Heart Institute, University of Sao Paulo, Sao Paulo, 05403-010, SP, Brazil
| | - Alicia J Kowaltowski
- Departamento de Bioquímica, Instituto de Química, Universidade de Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA.
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Vilela WR, Ramalho LS, Bechara LRG, Cabral-Costa JV, Serna JDC, Kowaltowski AJ, Xavier GF, Ferreira JCB, de Bem AF. Metabolic dysfunction induced by HFD + L-NAME preferentially affects hippocampal mitochondria, impacting spatial memory in rats. J Bioenerg Biomembr 2024; 56:87-99. [PMID: 38374292 DOI: 10.1007/s10863-024-10005-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024]
Abstract
High-fat diet-induced metabolic changes are not restricted to the onset of cardiovascular diseases, but also include effects on brain functions related to learning and memory. This study aimed to evaluate mitochondrial markers and function, as well as cognitive function, in a rat model of metabolic dysfunction. Eight-week-old male Wistar rats were subjected to either a control diet or a two-hit protocol combining a high fat diet (HFD) with the nitric oxide synthase inhibitor L-NAME in the drinking water. HFD plus L-NAME induced obesity, hypertension, and increased serum cholesterol. These rats exhibited bioenergetic dysfunction in the hippocampus, characterized by decreased oxygen (O2) consumption related to ATP production, with no changes in H2O2 production. Furthermore, OPA1 protein expression was upregulated in the hippocampus of HFD + L-NAME rats, with no alterations in other morphology-related proteins. Consistently, HFD + L-NAME rats showed disruption of performance in the Morris Water Maze Reference Memory test. The neocortex did not exhibit either bioenergetic changes or alterations in H2O2 production. Calcium uptake rate and retention capacity in the neocortex of HFD + L-NAME rats were not altered. Our results indicate that hippocampal mitochondrial bioenergetic function is disturbed in rats exposed to a HFD plus L-NAME, thus disrupting spatial learning, whereas neocortical function remains unaffected.
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Affiliation(s)
- Wembley R Vilela
- Department of Physiological Sciences, University of Brasilia, Federal District, Brasília, DF, 70910-900, Brazil
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, Lund, 22362, Sweden
| | - Lisley S Ramalho
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil
| | - João V Cabral-Costa
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Julian D C Serna
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Alicia J Kowaltowski
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Gilberto F Xavier
- Department of Physiology, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508- 090, Brazil
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Andreza Fabro de Bem
- Department of Physiological Sciences, University of Brasilia, Federal District, Brasília, DF, 70910-900, Brazil.
- Brazilian National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, 21040-360, Brazil.
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 581 85, Sweden.
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Kiyuna LA, Candido DS, Bechara LRG, Jesus ICG, Ramalho LS, Krum B, Albuquerque RP, Campos JC, Bozi LHM, Zambelli VO, Alves AN, Campolo N, Mastrogiovanni M, Bartesaghi S, Leyva A, Durán R, Radi R, Arantes GM, Cunha-Neto E, Mori MA, Chen CH, Yang W, Mochly-Rosen D, MacRae IJ, Ferreira LRP, Ferreira JCB. 4-Hydroxynonenal impairs miRNA maturation in heart failure via Dicer post-translational modification. Eur Heart J 2023; 44:4696-4712. [PMID: 37944136 DOI: 10.1093/eurheartj/ehad662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 09/08/2023] [Accepted: 09/25/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND AND AIMS Developing novel therapies to battle the global public health burden of heart failure remains challenging. This study investigates the underlying mechanisms and potential treatment for 4-hydroxynonenal (4-HNE) deleterious effects in heart failure. METHODS Biochemical, functional, and histochemical measurements were applied to identify 4-HNE adducts in rat and human failing hearts. In vitro studies were performed to validate 4-HNE targets. RESULTS 4-HNE, a reactive aldehyde by-product of mitochondrial dysfunction in heart failure, covalently inhibits Dicer, an RNase III endonuclease essential for microRNA (miRNA) biogenesis. 4-HNE inhibition of Dicer impairs miRNA processing. Mechanistically, 4-HNE binds to recombinant human Dicer through an intermolecular interaction that disrupts both activity and stability of Dicer in a concentration- and time-dependent manner. Dithiothreitol neutralization of 4-HNE or replacing 4-HNE-targeted residues in Dicer prevents 4-HNE inhibition of Dicer in vitro. Interestingly, end-stage human failing hearts from three different heart failure aetiologies display defective 4-HNE clearance, decreased Dicer activity, and miRNA biogenesis impairment. Notably, boosting 4-HNE clearance through pharmacological re-activation of mitochondrial aldehyde dehydrogenase 2 (ALDH2) using Alda-1 or its improved orally bioavailable derivative AD-9308 restores Dicer activity. ALDH2 is a major enzyme responsible for 4-HNE removal. Importantly, this response is accompanied by improved miRNA maturation and cardiac function/remodelling in a pre-clinical model of heart failure. CONCLUSIONS 4-HNE inhibition of Dicer directly impairs miRNA biogenesis in heart failure. Strikingly, decreasing cardiac 4-HNE levels through pharmacological ALDH2 activation is sufficient to re-establish Dicer activity and miRNA biogenesis; thereby representing potential treatment for patients with heart failure.
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Affiliation(s)
- Ligia A Kiyuna
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Darlan S Candido
- Laboratory of Immunology, Heart Institute, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Itamar C G Jesus
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Lisley S Ramalho
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Barbara Krum
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Ruda P Albuquerque
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | - Luiz H M Bozi
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
| | | | - Ariane N Alves
- Department of Biochemistry, Institute of Chemistry, University of Sao Paulo, São Paulo, Brazil
| | - Nicolás Campolo
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - Mauricio Mastrogiovanni
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - Silvina Bartesaghi
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - Alejandro Leyva
- Unidad de Bioquímica y Proteómica Analítica (UByPA), Instituto de Investigaciones Biológicas Celemente Estable & Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Rosario Durán
- Unidad de Bioquímica y Proteómica Analítica (UByPA), Instituto de Investigaciones Biológicas Celemente Estable & Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Rafael Radi
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - Guilherme M Arantes
- Department of Biochemistry, Institute of Chemistry, University of Sao Paulo, São Paulo, Brazil
| | - Edécio Cunha-Neto
- Laboratory of Immunology, Heart Institute, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Marcelo A Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (Unicamp), São Paulo, Brazil
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, CCSR 3145A, 269 Campus Drive, Stanford, CA 94305, USA
| | - Wenjin Yang
- Foresee Pharmaceuticals, Co., Ltd, Taipei, Taiwan
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, CCSR 3145A, 269 Campus Drive, Stanford, CA 94305, USA
| | - Ian J MacRae
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA
| | - Ludmila R P Ferreira
- Laboratory of Immunology, Heart Institute, University of São Paulo School of Medicine, São Paulo, Brazil
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Minas Gerais, Brazil
- Brazilian National Institute of Vaccine Science and Technology, Federal University of Minas Gerais, Minas Gerais, Brazil
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 2415 - Butanta, 05508-000 São Paulo-SP, Brazil
- Department of Chemical and Systems Biology, Stanford University School of Medicine, CCSR 3145A, 269 Campus Drive, Stanford, CA 94305, USA
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Ribeiro F, Alves PKN, Bechara LRG, Ferreira JCB, Labeit S, Moriscot AS. Small-Molecule Inhibition of MuRF1 Prevents Early Disuse-Induced Diaphragmatic Dysfunction and Atrophy. Int J Mol Sci 2023; 24:ijms24043637. [PMID: 36835047 PMCID: PMC9965746 DOI: 10.3390/ijms24043637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
In clinical conditions such as diaphragm paralysis or mechanical ventilation, disuse-induced diaphragmatic dysfunction (DIDD) is a condition that poses a threat to life. MuRF1 is a key E3-ligase involved in regulating skeletal muscle mass, function, and metabolism, which contributes to the onset of DIDD. We investigated if the small-molecule mediated inhibition of MuRF1 activity (MyoMed-205) protects against early DIDD after 12 h of unilateral diaphragm denervation. Wistar rats were used in this study to determine the compound's acute toxicity and optimal dosage. For potential DIDD treatment efficacy, diaphragm contractile function and fiber cross-sectional area (CSA) were evaluated. Western blotting investigated potential mechanisms underlying MyoMed-205's effects in early DIDD. Our results indicate 50 mg/kg bw MyoMed-205 as a suitable dosage to prevent early diaphragmatic contractile dysfunction and atrophy following 12 h of denervation without detectable signs of acute toxicity. Mechanistically, treatment did not affect disuse-induced oxidative stress (4-HNE) increase, whereas phosphorylation of (ser632) HDAC4 was normalized. MyoMed-205 also mitigated FoxO1 activation, inhibited MuRF2, and increased phospho (ser473) Akt protein levels. These findings may suggest that MuRF1 activity significantly contributes to early DIDD pathophysiology. Novel strategies targeting MuRF1 (e.g., MyoMed-205) have potential therapeutic applications for treating early DIDD.
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Affiliation(s)
- Fernando Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Paula K. N. Alves
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Luiz R. G. Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Julio C. B. Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Siegfried Labeit
- DZHK Partner Site Mannheim-Heidelberg, Medical Faculty Mannheim, University of Heidelberg, 68169 Mannheim, Germany
- Myomedix GmbH, 69151 Neckargemünd, Germany
| | - Anselmo S. Moriscot
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
- Correspondence: ; Tel.: +55-11-3091-0946
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6
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Tostes K, dos Santos AC, Alves LO, Bechara LRG, Marascalchi R, Macabelli CH, Grejo MP, Festuccia WT, Gottlieb RA, Ferreira JCB, Chiaratti MR. Autophagy deficiency abolishes liver mitochondrial DNA segregation. Autophagy 2022; 18:2397-2408. [PMID: 35220898 PMCID: PMC9542960 DOI: 10.1080/15548627.2022.2038501] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Mutations in the mitochondrial genome (mtDNA) are ubiquitous in humans and can lead to a broad spectrum of disorders. However, due to the presence of multiple mtDNA molecules in the cell, co-existence of mutant and wild-type mtDNAs (termed heteroplasmy) can mask disease phenotype unless a threshold of mutant molecules is reached. Importantly, the mutant mtDNA level can change across lifespan as mtDNA segregates in an allele- and cell-specific fashion, potentially leading to disease. Segregation of mtDNA is mainly evident in hepatic cells, resulting in an age-dependent increase of mtDNA variants, including non-synonymous potentially deleterious mutations. Here we modeled mtDNA segregation using a well-established heteroplasmic mouse line with mtDNA of NZB/BINJ and C57BL/6N origin on a C57BL/6N nuclear background. This mouse line showed a pronounced age-dependent NZB mtDNA accumulation in the liver, thus leading to enhanced respiration capacity per mtDNA molecule. Remarkably, liver-specific atg7 (autophagy related 7) knockout abolished NZB mtDNA accumulat ion, resulting in close-to-neutral mtDNA segregation through development into adulthood. prkn (parkin RBR E3 ubiquitin protein ligase) knockout also partially prevented NZB mtDNA accumulation in the liver, but to a lesser extent. Hence, we propose that age-related liver mtDNA segregation is a consequence of macroautophagic clearance of the less-fit mtDNA. Considering that NZB/BINJ and C57BL/6N mtDNAs have a level of divergence comparable to that between human Eurasian and African mtDNAs, these findings have potential implications for humans, including the safe use of mitochondrial replacement therapy.Abbreviations: Apob: apolipoprotein B; Atg1: autophagy-related 1; Atg7: autophagy related 7; Atp5a1: ATP synthase, H+ transporting, mitochondrial F1 complex, alpha subunit 1; BL6: C57BL/6N mouse strain; BNIP3: BCL2/adenovirus E1B interacting protein 3; FCCP: carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; MAP1LC3A: microtubule-associated protein 1 light chain 3 alpha; MAP1LC3B: microtubule-associated protein 1 light chain 3 beta; mt-Atp8: mitochondrially encoded ATP synthase 8; MT-CO1: mitochondrially encoded cytochrome c oxidase I; MT-CO2: mitochondrially encoded cytochrome c oxidase II; mt-Co3: mitochondrially encoded cytochrome c oxidase III; mt-Cytb: mitochondrially encoded cytochrome b; mtDNA: mitochondrial DNA; MUL1: mitochondrial ubiquitin ligase activator of NFKB 1; nDNA: nuclear DNA; Ndufa9: NADH:ubiquinone oxireductase subunit A9; NDUFB8: NADH:ubiquinone oxireductase subunit B8; Nnt: nicotinamide nucleotide transhydrogenase; NZB: NZB/BINJ mouse strain; OXPHOS: oxidative phosphorylation; PINK1: PTEN induced putative kinase 1; Polg2: polymerase (DNA directed), gamma 2, accessory subunit; Ppara: peroxisome proliferator activated receptor alpha; Ppia: peptidylprolyl isomerase A; Prkn: parkin RBR E3 ubiquitin protein ligase; P10: post-natal day 10; P21: post-natal day 21; P100: post-natal day 100; qPCR: quantitative polymerase chain reaction; Rpl19: ribosomal protein L19; Rps18: ribosomal protein S18; SD: standard deviation; SEM: standard error of the mean; SDHB: succinate dehydrogenase complex, subunit B, iron sulfur (Ip); SQSTM1: sequestosome 1; Ssbp1: single-stranded DNA binding protein 1; TFAM: transcription factor A, mitochondrial; Tfb1m: transcription factor B1, mitochondrial; Tfb2m: transcription factor B2, mitochondrial; TOMM20: translocase of outer mitochondrial membrane 20; UQCRC2: ubiquinol cytochrome c reductase core protein 2; WT: wild-type.
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Affiliation(s)
- Katiane Tostes
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Angélica C. dos Santos
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Lindomar O. Alves
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Luiz R. G. Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Rachel Marascalchi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Carolina H. Macabelli
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Mateus P. Grejo
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - William T. Festuccia
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Roberta A. Gottlieb
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Julio C. B. Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil,Department of Chemical and Systems Biology, Stanford University School of Medicine, CA, USA
| | - Marcos R. Chiaratti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil,CONTACT Marcos R. Chiaratti Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos13565-905, Brazil
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7
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Qvit N, Lin AJ, Elezaby A, Ostberg NP, Campos JC, Ferreira JCB, Mochly-Rosen D. A Selective Inhibitor of Cardiac Troponin I Phosphorylation by Delta Protein Kinase C (δPKC) as a Treatment for Ischemia-Reperfusion Injury. Pharmaceuticals (Basel) 2022; 15:271. [PMID: 35337069 PMCID: PMC8950820 DOI: 10.3390/ph15030271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023] Open
Abstract
Myocardial infarction is the leading cause of cardiovascular mortality, with myocardial injury occurring during ischemia and subsequent reperfusion (IR). We previously showed that the inhibition of protein kinase C delta (δPKC) with a pan-inhibitor (δV1-1) mitigates myocardial injury and improves mitochondrial function in animal models of IR, and in humans with acute myocardial infarction, when treated at the time of opening of the occluded blood vessel, at reperfusion. Cardiac troponin I (cTnI), a key sarcomeric protein in cardiomyocyte contraction, is phosphorylated by δPKC during reperfusion. Here, we describe a rationally-designed, selective, high-affinity, eight amino acid peptide that inhibits cTnI's interaction with, and phosphorylation by, δPKC (ψTnI), and prevents tissue injury in a Langendorff model of myocardial infarction, ex vivo. Unexpectedly, we also found that this treatment attenuates IR-induced mitochondrial dysfunction. These data suggest that δPKC phosphorylation of cTnI is critical in IR injury, and that a cTnI/δPKC interaction inhibitor should be considered as a therapeutic target to reduce cardiac injury after myocardial infarction.
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Affiliation(s)
- Nir Qvit
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
- The Azrieli Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Amanda J. Lin
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
| | - Aly Elezaby
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
| | - Nicolai P. Ostberg
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
| | - Juliane C. Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil;
| | - Julio C. B. Ferreira
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil;
| | - Daria Mochly-Rosen
- Center for Clinical Sciences Research, Department of Chemical & Systems Biology, Stanford University School of Medicine, 269 Campus Dr. Room 3145, Stanford, CA 94305, USA; (N.Q.); (A.J.L.); (A.E.); (N.P.O.); (J.C.B.F.)
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8
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Garcia AA, Koperniku A, Ferreira JCB, Mochly-Rosen D. Treatment strategies for glucose-6-phosphate dehydrogenase deficiency: past and future perspectives. Trends Pharmacol Sci 2021; 42:829-844. [PMID: 34389161 DOI: 10.1016/j.tips.2021.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/19/2021] [Accepted: 07/13/2021] [Indexed: 01/20/2023]
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) maintains redox balance in a variety of cell types and is essential for erythrocyte resistance to oxidative stress. G6PD deficiency, caused by mutations in the G6PD gene, is present in ~400 million people worldwide, and can cause acute hemolytic anemia. Currently, there are no therapeutics for G6PD deficiency. We discuss the role of G6PD in hemolytic and nonhemolytic disorders, treatment strategies attempted over the years, and potential reasons for their failure. We also discuss potential pharmacological pathways, including glutathione (GSH) metabolism, compensatory NADPH production routes, transcriptional upregulation of the G6PD gene, highlighting potential drug targets. The needs and opportunities described here may motivate the development of a therapeutic for hematological and other chronic diseases associated with G6PD deficiency.
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Affiliation(s)
- Adriana A Garcia
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Ana Koperniku
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Julio C B Ferreira
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, USA; Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, USA.
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9
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Alves CRR, Eichelberger EJ, das Neves W, Ribeiro MAC, Bechara LRG, Voltarelli VA, de Almeida NR, Hagen L, Sharma A, Ferreira JCB, Swoboda KJ, Slupphaug G, Brum PC. Cancer-induced muscle atrophy is determined by intrinsic muscle oxidative capacity. FASEB J 2021; 35:e21714. [PMID: 34118107 DOI: 10.1096/fj.202100263r] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/07/2021] [Accepted: 05/18/2021] [Indexed: 01/15/2023]
Abstract
We tested the hypothesis that cancer cachexia progression would induce oxidative post-translational modifications (Ox-PTMs) associated with skeletal muscle wasting, with different responses in muscles with the prevalence of glycolytic and oxidative fibers. We used cysteine-specific isotopic coded affinity tags (OxICAT) and gel-free mass spectrometry analysis to investigate the cysteine Ox-PTMs profile in the proteome of both plantaris (glycolytic) and soleus (oxidative) muscles in tumor-bearing and control rats. Histological analysis revealed muscle atrophy in type II fibers in plantaris muscle, with no changes in plantaris type I fibers and no differences in both soleus type I and II fibers in tumor-bearing rats when compared to healthy controls. Tumor progression altered the Ox-PTMs profile in both plantaris and soleus. However, pathway analysis including the differentially oxidized proteins revealed tricarboxylic acid cycle and oxidative phosphorylation as main affected pathways in plantaris muscle from tumor-bearing rats, while the same analysis did not show main metabolic pathways affected in the soleus muscle. In addition, cancer progression affected several metabolic parameters such as ATP levels and markers of oxidative stress associated with muscle atrophy in plantaris muscle, but not in soleus. However, isolated soleus from tumor-bearing rats had a reduced force production capacity when compared to controls. These novel findings demonstrate that tumor-bearing rats have severe muscle atrophy exclusively in glycolytic fibers. Cancer progression is associated with cysteine Ox-PTMs in the skeletal muscle, but these modifications affect different pathways in a glycolytic muscle compared to an oxidative muscle, indicating that intrinsic muscle oxidative capacity determines the response to cancer cachectic effects.
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Affiliation(s)
- Christiano R R Alves
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil.,Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Eric J Eichelberger
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Willian das Neves
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Márcio A C Ribeiro
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Luiz R G Bechara
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Vanessa A Voltarelli
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Ney R de Almeida
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Lars Hagen
- Department of Clinical and Molecular Medicine, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,PROMEC Proteomics and Modomics Experimental Core, NTNU and the Central Norway Regional Health Authority, Trondheim, Norway
| | - Animesh Sharma
- Department of Clinical and Molecular Medicine, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,PROMEC Proteomics and Modomics Experimental Core, NTNU and the Central Norway Regional Health Authority, Trondheim, Norway
| | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Kathryn J Swoboda
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Geir Slupphaug
- Department of Clinical and Molecular Medicine, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,PROMEC Proteomics and Modomics Experimental Core, NTNU and the Central Norway Regional Health Authority, Trondheim, Norway
| | - Patricia C Brum
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
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10
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de Oliveira Silva T, Lino CA, Buzatto VC, Asprino PF, Lu YW, Lima VM, Fonseca RIB, Jensen L, Murata GM, Filho SV, Ribeiro MAC, Donato JJ, Ferreira JCB, Rodrigues AC, Irigoyen MC, Barreto-Chaves MLM, Huang ZP, Galante PAF, Wang DZ, Diniz GP. Deletion of miRNA-22 Induces Cardiac Hypertrophy in Females but Attenuates Obesogenic Diet-Mediated Metabolic Disorders. Cell Physiol Biochem 2021; 54:1199-1217. [PMID: 33252886 DOI: 10.33594/000000309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Obesity is a risk factor associated with cardiometabolic complications. Recently, we reported that miRNA-22 deletion attenuated high-fat diet-induced adiposity and prevented dyslipidemia without affecting cardiac hypertrophy in male mice. In this study, we examined the impact of miRNA-22 in obesogenic diet-induced cardiovascular and metabolic disorders in females. METHODS Wild type (WT) and miRNA-22 knockout (miRNA-22 KO) females were fed a control or an obesogenic diet. Body weight gain, adiposity, glucose tolerance, insulin tolerance, and plasma levels of total cholesterol and triglycerides were measured. Cardiac and white adipose tissue remodeling was assessed by histological analyses. Echocardiography was used to evaluate cardiac function and morphology. RNA-sequencing analysis was employed to characterize mRNA expression profiles in female hearts. RESULTS Loss of miRNA-22 attenuated body weight gain, adiposity, and prevented obesogenic diet-induced insulin resistance and dyslipidemia in females. WT obese females developed cardiac hypertrophy. Interestingly, miRNA-22 KO females displayed cardiac hypertrophy without left ventricular dysfunction and myocardial fibrosis. Both miRNA-22 deletion and obesogenic diet changed mRNA expression profiles in female hearts. Enrichment analysis revealed that genes associated with regulation of the force of heart contraction, protein folding and fatty acid oxidation were enriched in hearts of WT obese females. In addition, genes related to thyroid hormone responses, heart growth and PI3K signaling were enriched in hearts of miRNA-22 KO females. Interestingly, miRNA-22 KO obese females exhibited reduced mRNA levels of Yap1, Egfr and Tgfbr1 compared to their respective controls. CONCLUSION This study reveals that miRNA-22 deletion induces cardiac hypertrophy in females without affecting myocardial function. In addition, our findings suggest miRNA-22 as a potential therapeutic target to treat obesity-related metabolic disorders in females.
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Affiliation(s)
| | - Caroline A Lino
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Vanessa C Buzatto
- Centro de Oncologia Molecular, Hospital Sirio-Libanes, Sao Paulo, Brazil
| | | | - Yao Wei Lu
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Renata I B Fonseca
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Leonardo Jensen
- Hypertension Unit, Heart Institute, University of Sao Paulo, Sao Paulo, Brazil
| | - Gilson M Murata
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Sidney V Filho
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Márcio A C Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Jose Jr Donato
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Alice C Rodrigues
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | - Zhan-Peng Huang
- Center for Translational Medicine, The First Affiliated Hospital, NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | | | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gabriela P Diniz
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil,
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11
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Lima VM, Liu J, Brandão BB, Lino CA, Balbino Silva CS, Ribeiro MAC, Oliveira TE, Real CC, de Paula Faria D, Cederquist C, Huang ZP, Hu X, Barreto-Chaves ML, Ferreira JCB, Festuccia WT, Mori MA, Kahn CR, Wang DZ, Diniz GP. miRNA-22 deletion limits white adipose expansion and activates brown fat to attenuate high-fat diet-induced fat mass accumulation. Metabolism 2021; 117:154723. [PMID: 33549579 PMCID: PMC8935324 DOI: 10.1016/j.metabol.2021.154723] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/21/2021] [Accepted: 01/29/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Obesity, characterized by excessive expansion of white adipose tissue (WAT), is associated with numerous metabolic complications. Conversely, brown adipose tissue (BAT) and beige fat are thermogenic tissues that protect mice against obesity and related metabolic disorders. We recently reported that deletion of miR-22 enhances energy expenditure and attenuates WAT expansion in response to a high-fat diet (HFD). However, the molecular mechanisms involved in these effects mediated by miR-22 loss are unclear. METHODS AND RESULTS Here, we show that miR-22 expression is induced during white, beige, and brown adipocyte differentiation in vitro. Deletion of miR-22 reduced white adipocyte differentiation in vitro. Loss of miR-22 prevented HFD-induced expression of adipogenic/lipogenic markers and adipocyte hypertrophy in murine WAT. In addition, deletion of miR-22 protected mice against HFD-induced mitochondrial dysfunction in WAT and BAT. Loss of miR-22 induced WAT browning. Gain- and loss-of-function studies revealed that miR-22 did not affect brown adipogenesis in vitro. Interestingly, miR-22 KO mice fed a HFD displayed increased expression of genes involved in thermogenesis and adrenergic signaling in BAT when compared to WT mice fed the same diet. CONCLUSIONS Collectively, our findings suggest that loss of miR-22 attenuates fat accumulation in response to a HFD by reducing white adipocyte differentiation and increasing BAT activity, reinforcing miR-22 as a potential therapeutic target for obesity-related disorders.
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Affiliation(s)
- Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Jianming Liu
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bruna B Brandão
- Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Caroline A Lino
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Camila S Balbino Silva
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Márcio A C Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Tiago E Oliveira
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Caroline C Real
- Department of Radiology and Oncology, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Daniele de Paula Faria
- Department of Radiology and Oncology, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | | | - Zhan-Peng Huang
- Center for Translational Medicine, The First Affiliated Hospital, NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyun Hu
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil; Department of Chemical and Systems Biology, Stanford University School of Medicine, California, USA
| | - William T Festuccia
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Marcelo A Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - C Ronald Kahn
- Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gabriela P Diniz
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil.
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12
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Campos JC, Chen CH, Ferreira JCB. Comment on: "Aldehyde dehydrogenases contribute to skeletal muscle homeostasis in healthy, aging, and Duchenne muscular dystrophy patients" by Etienne et al. J Cachexia Sarcopenia Muscle 2020; 11:1858-1859. [PMID: 32729226 PMCID: PMC7749548 DOI: 10.1002/jcsm.12609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Juliane C Campos
- University of Sao Paulo, Institute of Biomedical Sciences, Sao Paulo, Brazil
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Julio C B Ferreira
- University of Sao Paulo, Institute of Biomedical Sciences, Sao Paulo, Brazil.,Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, 94305, USA
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13
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Sant'Anna MB, Giardini AC, Ribeiro MAC, Lopes FSR, Teixeira NB, Kimura LF, Bufalo MC, Ribeiro OG, Borrego A, Cabrera WHK, Ferreira JCB, Zambelli VO, Sant'Anna OA, Picolo G. The Crotoxin:SBA-15 Complex Down-Regulates the Incidence and Intensity of Experimental Autoimmune Encephalomyelitis Through Peripheral and Central Actions. Front Immunol 2020; 11:591563. [PMID: 33193433 PMCID: PMC7655790 DOI: 10.3389/fimmu.2020.591563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/05/2020] [Indexed: 01/18/2023] Open
Abstract
Crotoxin (CTX), the main neurotoxin from Crotalus durissus terrificus snake venom, has anti-inflammatory, immunomodulatory and antinociceptive activities. However, the CTX-induced toxicity may compromise its use. Under this scenario, the use of nanoparticle such as nanostructured mesoporous silica (SBA-15) as a carrier might become a feasible approach to improve CTX safety. Here, we determined the benefits of SBA-15 on CTX-related neuroinflammatory and immunomodulatory properties during experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis that replicates several histopathological and immunological features observed in humans. We showed that a single administration of CTX:SBA-15 (54 μg/kg) was more effective in reducing pain and ameliorated the clinical score (motor impairment) in EAE animals compared to the CTX-treated EAE group; therefore, improving the disease outcome. Of interest, CTX:SBA-15, but not unconjugated CTX, prevented EAE-induced atrophy and loss of muscle function. Further supporting an immune mechanism, CTX:SBA-15 treatment reduced both recruitment and proliferation of peripheral Th17 cells as well as diminished IL-17 expression and glial cells activation in the spinal cord in EAE animals when compared with CTX-treated EAE group. Finally, CTX:SBA-15, but not unconjugated CTX, prevented the EAE-induced cell infiltration in the CNS. These results provide evidence that SBA-15 maximizes the immunomodulatory and anti-inflammatory effects of CTX in an EAE model; therefore, suggesting that SBA-15 has the potential to improve CTX effectiveness in the treatment of MS.
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Affiliation(s)
| | - Aline C Giardini
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil
| | - Marcio A C Ribeiro
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Flavia S R Lopes
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil
| | | | - Louise F Kimura
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil
| | - Michelle C Bufalo
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil
| | | | - Andrea Borrego
- Laboratory of Immunogenetics, Butantan Institute, Sao Paulo, Brazil
| | - Wafa H K Cabrera
- Laboratory of Immunogenetics, Butantan Institute, Sao Paulo, Brazil
| | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil.,Department of Chemical and Systems Biology, School of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Vanessa O Zambelli
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil.,Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | | | - Gisele Picolo
- Laboratory of Pain and Signaling, Butantan Institute, Sao Paulo, Brazil
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14
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Reddy A, Bozi LHM, Yaghi OK, Mills EL, Xiao H, Nicholson HE, Paschini M, Paulo JA, Garrity R, Laznik-Bogoslavski D, Ferreira JCB, Carl CS, Sjøberg KA, Wojtaszewski JFP, Jeppesen JF, Kiens B, Gygi SP, Richter EA, Mathis D, Chouchani ET. pH-Gated Succinate Secretion Regulates Muscle Remodeling in Response to Exercise. Cell 2020; 183:62-75.e17. [PMID: 32946811 DOI: 10.1016/j.cell.2020.08.039] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/05/2020] [Accepted: 08/17/2020] [Indexed: 12/23/2022]
Abstract
In response to skeletal muscle contraction during exercise, paracrine factors coordinate tissue remodeling, which underlies this healthy adaptation. Here we describe a pH-sensing metabolite signal that initiates muscle remodeling upon exercise. In mice and humans, exercising skeletal muscle releases the mitochondrial metabolite succinate into the local interstitium and circulation. Selective secretion of succinate is facilitated by its transient protonation, which occurs upon muscle cell acidification. In the protonated monocarboxylic form, succinate is rendered a transport substrate for monocarboxylate transporter 1, which facilitates pH-gated release. Upon secretion, succinate signals via its cognate receptor SUCNR1 in non-myofibrillar cells in muscle tissue to control muscle-remodeling transcriptional programs. This succinate-SUCNR1 signaling is required for paracrine regulation of muscle innervation, muscle matrix remodeling, and muscle strength in response to exercise training. In sum, we define a bioenergetic sensor in muscle that utilizes intracellular pH and succinate to coordinate tissue adaptation to exercise.
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Affiliation(s)
- Anita Reddy
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Luiz H M Bozi
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA; Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Omar K Yaghi
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Evanna L Mills
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Haopeng Xiao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Hilary E Nicholson
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Margherita Paschini
- Stem Cell Program, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Ryan Garrity
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Christian S Carl
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Kim A Sjøberg
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen F P Wojtaszewski
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | | | - Bente Kiens
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Erik A Richter
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Diane Mathis
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Edward T Chouchani
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA.
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15
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Bozi LHM, Campos JC, Gross ER, Ferreira JCB. Mitochondrial Unfolded Protein Response (UPR mt) Activation in Cardiac Diseases: Opportunities and Challenges. J Am Coll Cardiol 2020; 74:1011-1012. [PMID: 31416520 DOI: 10.1016/j.jacc.2019.05.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 05/14/2019] [Indexed: 12/12/2022]
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16
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Chen CH, Ferreira JCB, Joshi AU, Stevens MC, Li SJ, Hsu JHM, Maclean R, Ferreira ND, Cervantes PR, Martinez DD, Barrientos FL, Quintanares GHR, Mochly-Rosen D. Novel and prevalent non-East Asian ALDH2 variants; Implications for global susceptibility to aldehydes' toxicity. EBioMedicine 2020; 55:102753. [PMID: 32403082 PMCID: PMC7218264 DOI: 10.1016/j.ebiom.2020.102753] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/21/2020] [Accepted: 03/21/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Aldehyde dehydrogenase 2 (ALDH2) catalyzes the detoxification of aliphatic aldehydes, including acetaldehyde. About 45% of Han Chinese (East Asians), accounting for 8% of humans, carry a single point mutation in ALDH2*2 (E504K) that leads to accumulation of toxic reactive aldehydes. METHODS Sequencing of a small Mexican cohort and a search in the ExAC genomic database for additional ALDH2 variants common in various ethnic groups was set to identify missense variants. These were evaluated in vitro, and in cultured cells expressing these new and common variants. FINDINGS In a cohort of Hispanic donors, we identified 2 novel mutations in ALDH2. Using the ExAC genomic database, we found these identified variants and at least three other ALDH2 variants with a single point mutation among Latino, African, South Asian, and Finnish ethnic groups, at a frequency of >5/1000. Although located in different parts of the ALDH2 molecule, these common ALDH2 mutants exhibited a significant reduction in activity compared with the wild type enzyme in vitro and in 3T3 cells overexpressing each of the variants, and a greater ethanol-induced toxicity. As Alda-1, previously identified activator, did not activate some of the new mutant ALDH2 enzymes, we continued the screen and identified Alda-64, which is effective in correcting the loss of activity in most of these new and common ALDH2 variants. INTERPRETATION Since ~80% of the world population consumes ethanol and since acetaldehyde accumulation contributes to a variety of diseases, the identification of additional inactivating variants of ALDH2 in different ethnic groups may help develop new 'precision medicine' for carriers of these inactive ALDH2.
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Affiliation(s)
- Che-Hong Chen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA
| | - Julio C B Ferreira
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA; Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Amit U Joshi
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA
| | - Matthew C Stevens
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA
| | - Sin-Jin Li
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA; Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Jade H-M Hsu
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA; Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Rory Maclean
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA
| | - Nikolas D Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Pilar R Cervantes
- Translational Medicine and Innovation Unit, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Diana D Martinez
- Translational Medicine and Innovation Unit, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Fernando L Barrientos
- Translational Medicine and Innovation Unit, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Gibran H R Quintanares
- Translational Medicine and Innovation Unit, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, CA, USA.
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17
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Campos JC, Baehr LM, Ferreira ND, Bozi LHM, Andres AM, Ribeiro MAC, Gottlieb RA, Bodine SC, Ferreira JCB. β 2 -adrenoceptor activation improves skeletal muscle autophagy in neurogenic myopathy. FASEB J 2020; 34:5628-5641. [PMID: 32112488 DOI: 10.1096/fj.201902305r] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/03/2020] [Accepted: 02/14/2020] [Indexed: 01/21/2023]
Abstract
β2 -adrenoceptor agonists improve autophagy and re-establish proteostasis in cardiac cells; therefore, suggesting autophagy as a downstream effector of β2 -adrenoceptor signaling pathway. Here, we used the pharmacological and genetic tools to determine the autophagy effect of sustained β2 -adrenoceptor activation in rodents with neurogenic myopathy, which display impaired skeletal muscle autophagic flux. Sustained β2 -adrenoceptor activation using Formoterol (10 μg kg-1 day-1 ), starting at the onset of neurogenic myopathy, prevents disruption of autophagic flux in skeletal muscle 14 days after sciatic nerve constriction. These changes are followed by reduction of the cytotoxic protein levels and increased skeletal muscle cross-sectional area and contractility properties. Of interest, sustained administration of Formoterol at lower concentration (1 μg kg-1 day-1 ) induces similar improvements in skeletal muscle autophagic flux and contractility properties in neurogenic myopathy, without affecting the cross-sectional area. Sustained pharmacological inhibition of autophagy using Chloroquine (50 mg kg-1 day-1 ) abolishes the beneficial effects of β2 -adrenoceptor activation on the skeletal muscle proteostasis and contractility properties in neurogenic myopathy. Further supporting an autophagy mechanism for β2 -adrenoceptor activation, skeletal muscle-specific deletion of ATG7 blunts the beneficial effects of β2 -adrenoceptor on skeletal muscle proteostasis and contractility properties in neurogenic myopathy in mice. These findings suggest autophagy as a critical downstream effector of β2 -adrenoceptor signaling pathway in skeletal muscle.
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Affiliation(s)
- Juliane C Campos
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Leslie M Baehr
- Department of Internal Medicine, Endocrinology and Metabolism Division, University of Iowa, Iowa City, IA, USA
| | - Nikolas D Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Luiz H M Bozi
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Allen M Andres
- The Cedars-Sinai Heart Institute and the Barbra Streisand Women's Heart Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Márcio A C Ribeiro
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Roberta A Gottlieb
- The Cedars-Sinai Heart Institute and the Barbra Streisand Women's Heart Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sue C Bodine
- Department of Internal Medicine, Endocrinology and Metabolism Division, University of Iowa, Iowa City, IA, USA
| | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
- Department of Chemical & Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
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18
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Bozi LHM, Campos JC, Zambelli VO, Ferreira ND, Ferreira JCB. Mitochondrially-targeted treatment strategies. Mol Aspects Med 2019; 71:100836. [PMID: 31866004 DOI: 10.1016/j.mam.2019.100836] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022]
Abstract
Disruption of mitochondrial function is a common feature of inherited mitochondrial diseases (mitochondriopathies) and many other infectious and non-infectious diseases including viral, bacterial and protozoan infections, inflammatory and chronic pain, neurodegeneration, diabetes, obesity and cardiovascular diseases. Mitochondria therefore become an attractive target for developing new therapies. In this review we describe critical mechanisms involved in the maintenance of mitochondrial functionality and discuss strategies used to identify and validate mitochondrial targets in different diseases. We also highlight the most recent preclinical and clinical findings using molecules targeting mitochondrial bioenergetics, morphology, number, content and detoxification systems in common pathologies.
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Affiliation(s)
- Luiz H M Bozi
- Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Juliane C Campos
- Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | | | | | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Brazil; Department of Chemical and Systems Biology, School of Medicine, Stanford University, USA.
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19
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Affiliation(s)
- Che-Hong Chen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Eric R Gross
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, CA 94305, USA.
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20
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Ramesh M, Campos JC, Lee P, Song Y, Hernandez G, Sin J, Tucker KC, Saadaeijahromi H, Gurney M, Ferreira JCB, Andres AM. Mitophagy protects against statin-mediated skeletal muscle toxicity. FASEB J 2019; 33:11857-11869. [PMID: 31365836 DOI: 10.1096/fj.201900807rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The deleterious effects of statins on skeletal muscle are well known, but the mechanism associated with these effects remains unresolved. Statins are associated with mitochondrial damage, which may contribute to muscle myopathy. Here we demonstrate that simvastatin induces mitophagy in skeletal muscle cells and hypothesized that attenuating this process by silencing the mitophagy adapter p62/sequestosome-1 (SQSTM1) might mitigate myotoxicity. Surprisingly, silencing p62/SQSTM1 in differentiated C2C12 muscle cells exacerbated rather than attenuated myotoxicity. This inhibition of mitophagy in the face of statin challenge correlated with increased release of cytochrome c to the cytosol, activation of caspase-3, and lactate dehydrogenase (LDH) release. Correspondingly, targeted knockdown of Parkin, a canonical E3 ubiquitin ligase important for mitophagy, mirrored the effects of p62/SQSTM1 silencing. To corroborate these findings in vivo, we treated Parkin knockout mice with simvastatin for 2 wk. In line with our findings in vitro, these mitophagy-compromised mice displayed reduced spontaneous activity, loss of grip strength, and increased circulating levels of muscle damage marker LDH. Our findings demonstrate that mitophagy is an important mechanism to resist statin-induced skeletal muscle damage.-Ramesh, M., Campos, J. C., Lee, P., Song, Y., Hernandez, G., Sin, J., Tucker, K. C., Saadaeijahromi, H., Gurney, M., Ferreira, J. C. B., Andres, A. M. Mitophagy protects against statin-mediated skeletal muscle toxicity.
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Affiliation(s)
- Mridula Ramesh
- Donald P. Shiley BioScience Center, San Diego State University, San Diego, California, USA
| | - Juliane C Campos
- Cedars-Sinai Medical Center, Los Angeles, California, USA.,Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Pamela Lee
- Donald P. Shiley BioScience Center, San Diego State University, San Diego, California, USA
| | - Yang Song
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Genaro Hernandez
- Donald P. Shiley BioScience Center, San Diego State University, San Diego, California, USA
| | - Jon Sin
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Kyle C Tucker
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Michael Gurney
- Donald P. Shiley BioScience Center, San Diego State University, San Diego, California, USA
| | - Julio C B Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Allen M Andres
- Cedars-Sinai Medical Center, Los Angeles, California, USA
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21
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Neofiti-Papi B, Albuquerque RP, Miranda-Rodrigues M, Gonçalves NJN, Jorgetti V, Brum PC, Ferreira JCB, Gouveia CHA. Thyrotoxicosis Involves β2-Adrenoceptor Signaling to Negatively Affect Microarchitecture and Biomechanical Properties of the Femur. Thyroid 2019; 29:1060-1072. [PMID: 31264512 DOI: 10.1089/thy.2018.0259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Background: Thyrotoxicosis increases bone turnover, resulting in net bone loss. Sympathetic nervous system (SNS) activation, via β2-adrenoceptor (β2-AR) signaling, also has osteopenic effects. Because thyroid hormones (TH) interact with the SNS to regulate several physiological processes, we hypothesized that this interaction also occurs to regulate bone mass. Previous studies support this hypothesis, as α2-AR knockout (KO) mice are less susceptible to thyrotoxicosis-induced osteopenia. Here, we evaluated whether TH-SNS interactions in bone involve β2-AR signaling. Methods: Thyrotoxicosis was induced in 120-day-old female and male mice with β2-AR gene inactivation (β2-AR-/-) by daily treatment with supraphysiological doses of triiodothyronine (T3) for 12 weeks. The impact of thyrotoxicosis on femoral bone microarchitecture, remodeling, fracture risk, and gene expression of the receptor activator of nuclear factor-kappa-B (RANK)-RANK ligand (RANKL)-osteoprotegerin (OPG) pathway was evaluated. In addition, the effect of the β2-AR-specific agonist clenbuterol (CL) on cAMP accumulation was determined in osteoblastic (MC3T3-E1) cells treated with T3 and/or 17β-estradiol (E2). Results: Thyrotoxicosis negatively affected trabecular bone microarchitecture in wild-type (WT) females, but this effect was milder or nonexistent in β2-AR-/- animals, whereas the opposite was seen in males. T3 treatment increased the femoral RANKL/OPG mRNA ratio and the endosteal perimeter and medullary area of the diaphysis in WT females and males, but not in β2-AR-/- mice, suggesting that T3 promotes endosteal resorption in cortical bone, in a mechanism that involves β2-AR signaling. T3 treatment increased endocortical mineral apposition rate only in WT females but not in β2-AR-/- mice, suggesting that TH also induce bone formation in a β2-AR signaling-dependent mechanism. T3 treatment decreased femoral resistance to fracture only in WT females, but not in KO mice. E2 and CL similarly increased cAMP accumulation in MC3T3-E1 cells; whereas T3 alone had no effect, but it completely blocked E2-stimulated cAMP accumulation, suggesting that some T3 effects on bone may involve E2/cAMP signaling in osteoblasts. Conclusions: These findings sustain the hypothesis that T3 interacts with the SNS to regulate bone morphophysiology in a β2-AR signaling-dependent mechanism. The data also reveal sex as an important modifier of skeletal manifestations of thyrotoxicosis, as well as a modifier of the TH-SNS interactions to control bone microarchitecture, remodeling, and resistance to fracture.
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Affiliation(s)
- Bianca Neofiti-Papi
- 1Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- 2School of Medicine, and University of São Paulo, São Paulo, Brazil
| | - Ruda P Albuquerque
- 1Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Manuela Miranda-Rodrigues
- 1Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- 3Department of Genetic Medicine, University of Western Ontario, London, Ontario, Canada
| | | | - Vanda Jorgetti
- 2School of Medicine, and University of São Paulo, São Paulo, Brazil
| | - Patricia C Brum
- 5School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Julio C B Ferreira
- 1Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Cecilia H A Gouveia
- 1Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- 2School of Medicine, and University of São Paulo, São Paulo, Brazil
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22
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Ferreira JCB, Campos JC, Qvit N, Qi X, Bozi LHM, Bechara LRG, Lima VM, Queliconi BB, Disatnik MH, Dourado PMM, Kowaltowski AJ, Mochly-Rosen D. A selective inhibitor of mitofusin 1-βIIPKC association improves heart failure outcome in rats. Nat Commun 2019; 10:329. [PMID: 30659190 PMCID: PMC6338754 DOI: 10.1038/s41467-018-08276-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/18/2018] [Indexed: 12/16/2022] Open
Abstract
We previously demonstrated that beta II protein kinase C (βIIPKC) activity is elevated in failing hearts and contributes to this pathology. Here we report that βIIPKC accumulates on the mitochondrial outer membrane and phosphorylates mitofusin 1 (Mfn1) at serine 86. Mfn1 phosphorylation results in partial loss of its GTPase activity and in a buildup of fragmented and dysfunctional mitochondria in heart failure. βIIPKC siRNA or a βIIPKC inhibitor mitigates mitochondrial fragmentation and cell death. We confirm that Mfn1-βIIPKC interaction alone is critical in inhibiting mitochondrial function and cardiac myocyte viability using SAMβA, a rationally-designed peptide that selectively antagonizes Mfn1-βIIPKC association. SAMβA treatment protects cultured neonatal and adult cardiac myocytes, but not Mfn1 knockout cells, from stress-induced death. Importantly, SAMβA treatment re-establishes mitochondrial morphology and function and improves cardiac contractility in rats with heart failure, suggesting that SAMβA may be a potential treatment for patients with heart failure.
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Affiliation(s)
- Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil.
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA.
| | - Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Nir Qvit
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
| | - Xin Qi
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
- Department of Physiology & Biophysics, Case Western Reserve University, Cleveland, 44106, OH, USA
| | - Luiz H M Bozi
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Bruno B Queliconi
- Departamento de Bioquímica, Instituto de Química, Universidade de Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Marie-Helene Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA
| | - Paulo M M Dourado
- Heart Institute, University of Sao Paulo, Sao Paulo, 05403-010, SP, Brazil
| | - Alicia J Kowaltowski
- Departamento de Bioquímica, Instituto de Química, Universidade de Sao Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305-5174, CA, USA.
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23
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Abstract
Aldehyde dehydrogenase 2 (ALDH2) is a non-cytochrome P450 mitochondrial aldehyde oxidizing enzyme. It is best known for its role in the metabolism of acetaldehyde, a common metabolite from alcohol drinking. More evidences have been accumulated in recent years to indicate a greater role of ALDH2 in the metabolism of other endogenous and exogenous aldehydes, especially lipid peroxidation-derived reactive aldehyde under oxidative stress. Many cardiovascular diseases are associated with oxidative stress and mitochondria dysfunction. Considering that an estimated 560 million East Asians carry a common ALDH2 deficient variant which causes the well-known alcohol flushing syndrome due to acetaldehyde accumulation, the importance of understanding the role of ALDH2 in these diseases should be highlighted. There are several unfavorable cardiovascular conditions that are associated with ALDH2 deficiency. This chapter reviews the function of ALDH2 in various pathological conditions of the heart in relation to aldehyde toxicity. It also highlights the importance and clinical implications of interaction between ALDH2 deficiency and alcohol drinking on cardiovascular disease among the East Asians.
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Affiliation(s)
- Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA, USA
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA, USA.
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24
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Guedes EC, da Silva IB, Lima VM, Miranda JB, Albuquerque RP, Ferreira JCB, Barreto‐Chaves MLM, Diniz GP. High fat diet reduces the expression of miRNA‐29b in heart and increases susceptibility of myocardium to ischemia/reperfusion injury. J Cell Physiol 2018; 234:9399-9407. [DOI: 10.1002/jcp.27624] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 09/25/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Elaine Castilho Guedes
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Ivson Bezerra da Silva
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
- Department of Morphology Health Sciences Center, Federal University of Paraiba Joao Pessoa Brazil
| | - Vanessa Morais Lima
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Juliane B. Miranda
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Rudá P. Albuquerque
- Department of Anatomy Laboratory of Integrative Systems Biology, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Julio C. B. Ferreira
- Department of Anatomy Laboratory of Integrative Systems Biology, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Maria Luiza M. Barreto‐Chaves
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
| | - Gabriela Placoná Diniz
- Department of Anatomy Laboratory of Cell Biology and Functional Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo Brazil
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25
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Campos JC, Queliconi BB, Bozi LHM, Bechara LRG, Dourado PMM, Andres AM, Jannig PR, Gomes KMS, Zambelli VO, Rocha-Resende C, Guatimosim S, Brum PC, Mochly-Rosen D, Gottlieb RA, Kowaltowski AJ, Ferreira JCB. Exercise reestablishes autophagic flux and mitochondrial quality control in heart failure. Autophagy 2017; 13:1304-1317. [PMID: 28598232 PMCID: PMC5584854 DOI: 10.1080/15548627.2017.1325062] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 04/25/2017] [Indexed: 12/26/2022] Open
Abstract
We previously reported that facilitating the clearance of damaged mitochondria through macroautophagy/autophagy protects against acute myocardial infarction. Here we characterize the impact of exercise, a safe strategy against cardiovascular disease, on cardiac autophagy and its contribution to mitochondrial quality control, bioenergetics and oxidative damage in a post-myocardial infarction-induced heart failure animal model. We found that failing hearts displayed reduced autophagic flux depicted by accumulation of autophagy-related markers and loss of responsiveness to chloroquine treatment at 4 and 12 wk after myocardial infarction. These changes were accompanied by accumulation of fragmented mitochondria with reduced O2 consumption, elevated H2O2 release and increased Ca2+-induced mitochondrial permeability transition pore opening. Of interest, disruption of autophagic flux was sufficient to decrease cardiac mitochondrial function in sham-treated animals and increase cardiomyocyte toxicity upon mitochondrial stress. Importantly, 8 wk of exercise training, starting 4 wk after myocardial infarction at a time when autophagy and mitochondrial oxidative capacity were already impaired, improved cardiac autophagic flux. These changes were followed by reduced mitochondrial number:size ratio, increased mitochondrial bioenergetics and better cardiac function. Moreover, exercise training increased cardiac mitochondrial number, size and oxidative capacity without affecting autophagic flux in sham-treated animals. Further supporting an autophagy mechanism for exercise-induced improvements of mitochondrial bioenergetics in heart failure, acute in vivo inhibition of autophagic flux was sufficient to mitigate the increased mitochondrial oxidative capacity triggered by exercise in failing hearts. Collectively, our findings uncover the potential contribution of exercise in restoring cardiac autophagy flux in heart failure, which is associated with better mitochondrial quality control, bioenergetics and cardiac function.
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Affiliation(s)
- Juliane C Campos
- a Department of Anatomy , Institute of Biomedical Sciences, University of Sao Paulo , Sao Paulo , Brazil
- b The Cedars-Sinai Heart Institute and the Barbra Streisand Women's Heart Center , Cedars-Sinai Medical Center , Los Angeles , CA , USA
| | - Bruno B Queliconi
- c Departamento de Bioquímica , Instituto de Química, Universidade de São Paulo , Sao Paulo , Brazil
| | - Luiz H M Bozi
- a Department of Anatomy , Institute of Biomedical Sciences, University of Sao Paulo , Sao Paulo , Brazil
| | - Luiz R G Bechara
- a Department of Anatomy , Institute of Biomedical Sciences, University of Sao Paulo , Sao Paulo , Brazil
| | | | - Allen M Andres
- b The Cedars-Sinai Heart Institute and the Barbra Streisand Women's Heart Center , Cedars-Sinai Medical Center , Los Angeles , CA , USA
| | - Paulo R Jannig
- e School of Physical Education and Sport , University of Sao Paulo , Sao Paulo , Brazil
| | - Kátia M S Gomes
- a Department of Anatomy , Institute of Biomedical Sciences, University of Sao Paulo , Sao Paulo , Brazil
| | | | - Cibele Rocha-Resende
- g Department of Physiology and Biophysics , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Silvia Guatimosim
- g Department of Physiology and Biophysics , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Patricia C Brum
- e School of Physical Education and Sport , University of Sao Paulo , Sao Paulo , Brazil
| | - Daria Mochly-Rosen
- h Department of Chemical and Systems Biology , Stanford University School of Medicine , Stanford , CA , USA
| | - Roberta A Gottlieb
- b The Cedars-Sinai Heart Institute and the Barbra Streisand Women's Heart Center , Cedars-Sinai Medical Center , Los Angeles , CA , USA
| | - Alicia J Kowaltowski
- c Departamento de Bioquímica , Instituto de Química, Universidade de São Paulo , Sao Paulo , Brazil
| | - Julio C B Ferreira
- a Department of Anatomy , Institute of Biomedical Sciences, University of Sao Paulo , Sao Paulo , Brazil
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26
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Ueta CB, Gomes KS, Ribeiro MA, Mochly-Rosen D, Ferreira JCB. Disruption of mitochondrial quality control in peripheral artery disease: New therapeutic opportunities. Pharmacol Res 2017; 115:96-106. [PMID: 27876411 PMCID: PMC5205542 DOI: 10.1016/j.phrs.2016.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 11/10/2016] [Accepted: 11/12/2016] [Indexed: 01/25/2023]
Abstract
Peripheral artery disease (PAD) is a multifactorial disease initially triggered by reduced blood supply to the lower extremities due to atherosclerotic obstructions. It is considered a major public health problem worldwide, affecting over 200 million people. Management of PAD includes smoking cessation, exercise, statin therapy, antiplatelet therapy, antihypertensive therapy and surgical intervention. Although these pharmacological and non-pharmacological interventions usually increases blood flow to the ischemic limb, morbidity and mortality associated with PAD continue to increase. This scenario raises new fundamental questions regarding the contribution of intrinsic metabolic changes in the distal affected skeletal muscle to the progression of PAD. Recent evidence suggests that disruption of skeletal muscle mitochondrial quality control triggered by intermittent ischemia-reperfusion injury is associated with increased morbidity in individuals with PAD. The mitochondrial quality control machinery relies on surveillance systems that help maintaining mitochondrial homeostasis upon stress. In this review, we describe some of the most critical mechanisms responsible for the impaired skeletal muscle mitochondrial quality control in PAD. We also discuss recent findings on the central role of mitochondrial bioenergetics and quality control mechanisms including mitochondrial fusion-fission balance, turnover, oxidative stress and aldehyde metabolism in the pathophysiology of PAD, and highlight their potential as therapeutic targets.
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Affiliation(s)
- Cintia B Ueta
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Katia S Gomes
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Márcio A Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, USA
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Brazil.
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27
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Campos JC, Bozi LHM, Bechara LRG, Lima VM, Ferreira JCB. Mitochondrial Quality Control in Cardiac Diseases. Front Physiol 2016; 7:479. [PMID: 27818636 PMCID: PMC5073139 DOI: 10.3389/fphys.2016.00479] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/05/2016] [Indexed: 01/08/2023] Open
Abstract
Disruption of mitochondrial homeostasis is a hallmark of cardiac diseases. Therefore, maintenance of mitochondrial integrity through different surveillance mechanisms is critical for cardiomyocyte survival. In this review, we discuss the most recent findings on the central role of mitochondrial quality control processes including regulation of mitochondrial redox balance, aldehyde metabolism, proteostasis, dynamics, and clearance in cardiac diseases, highlighting their potential as therapeutic targets.
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Affiliation(s)
- Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo, Brazil
| | - Luiz H M Bozi
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo, Brazil
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo, Brazil
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo Sao Paulo, Brazil
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28
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Qvit N, Joshi AU, Cunningham AD, Ferreira JCB, Mochly-Rosen D. Glyceraldehyde-3-Phosphate Dehydrogenase (GAPDH) Protein-Protein Interaction Inhibitor Reveals a Non-catalytic Role for GAPDH Oligomerization in Cell Death. J Biol Chem 2016; 291:13608-21. [PMID: 27129213 DOI: 10.1074/jbc.m115.711630] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 12/16/2022] Open
Abstract
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH), an important glycolytic enzyme, has a non-catalytic (thus a non-canonical) role in inducing mitochondrial elimination under oxidative stress. We recently demonstrated that phosphorylation of GAPDH by δ protein kinase C (δPKC) inhibits this GAPDH-dependent mitochondrial elimination. δPKC phosphorylation of GAPDH correlates with increased cell injury following oxidative stress, suggesting that inhibiting GAPDH phosphorylation should decrease cell injury. Using rational design, we identified pseudo-GAPDH (ψGAPDH) peptide, an inhibitor of δPKC-mediated GAPDH phosphorylation that does not inhibit the phosphorylation of other δPKC substrates. Unexpectedly, ψGAPDH decreased mitochondrial elimination and increased cardiac damage in an animal model of heart attack. Either treatment with ψGAPDH or direct phosphorylation of GAPDH by δPKC decreased GAPDH tetramerization, which corresponded to reduced GAPDH glycolytic activity in vitro and ex vivo Taken together, our study identified the potential mechanism by which oxidative stress inhibits the protective GAPDH-mediated elimination of damaged mitochondria. Our study also identified a pharmacological tool, ψGAPDH peptide, with interesting properties. ψGAPDH peptide is an inhibitor of the interaction between δPKC and GAPDH and of the resulting phosphorylation of GAPDH by δPKC. ψGAPDH peptide is also an inhibitor of GAPDH oligomerization and thus an inhibitor of GAPDH glycolytic activity. Finally, we found that ψGAPDH peptide is an inhibitor of the elimination of damaged mitochondria. We discuss how this unique property of increasing cell damage following oxidative stress suggests a potential use for ψGAPDH peptide-based therapy.
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Affiliation(s)
- Nir Qvit
- From the Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California 94305-5174 and
| | - Amit U Joshi
- From the Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California 94305-5174 and
| | - Anna D Cunningham
- From the Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California 94305-5174 and
| | - Julio C B Ferreira
- the Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Daria Mochly-Rosen
- From the Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California 94305-5174 and
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29
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Disatnik MH, Hwang S, Ferreira JCB, Mochly-Rosen D. New therapeutics to modulate mitochondrial dynamics and mitophagy in cardiac diseases. J Mol Med (Berl) 2015; 93:279-87. [PMID: 25652199 PMCID: PMC4333238 DOI: 10.1007/s00109-015-1256-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 01/13/2015] [Accepted: 01/23/2015] [Indexed: 12/20/2022]
Abstract
The processes that control the number and shape of the mitochondria (mitochondrial dynamics) and the removal of damaged mitochondria (mitophagy) have been the subject of intense research. Recent work indicates that these processes may contribute to the pathology associated with cardiac diseases. This review describes some of the key proteins that regulate these processes and their potential as therapeutic targets for cardiac diseases.
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Affiliation(s)
- Marie-Hélène Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA
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30
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Gomes KMS, Bechara LRG, Lima VM, Ribeiro MAC, Campos JC, Dourado PM, Kowaltowski AJ, Mochly-Rosen D, Ferreira JCB. Aldehydic load and aldehyde dehydrogenase 2 profile during the progression of post-myocardial infarction cardiomyopathy: benefits of Alda-1. Int J Cardiol 2014; 179:129-38. [PMID: 25464432 DOI: 10.1016/j.ijcard.2014.10.140] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/25/2014] [Accepted: 10/18/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND/OBJECTIVES We previously demonstrated that reducing cardiac aldehydic load by aldehyde dehydrogenase 2 (ALDH2), a mitochondrial enzyme responsible for metabolizing the major lipid peroxidation product, protects against acute ischemia/reperfusion injury and chronic heart failure. However, time-dependent changes in ALDH2 profile, aldehydic load and mitochondrial bioenergetics during progression of post-myocardial infarction (post-MI) cardiomyopathy are unknown and should be established to determine the optimal time window for drug treatment. METHODS Here we characterized cardiac ALDH2 activity and expression, lipid peroxidation, 4-hydroxy-2-nonenal (4-HNE) adduct formation, glutathione pool and mitochondrial energy metabolism and H₂O₂ release during the 4 weeks after permanent left anterior descending (LAD) coronary artery occlusion in rats. RESULTS We observed a sustained disruption of cardiac mitochondrial function during the progression of post-MI cardiomyopathy, characterized by >50% reduced mitochondrial respiratory control ratios and up to 2 fold increase in H₂O₂ release. Mitochondrial dysfunction was accompanied by accumulation of cardiac and circulating lipid peroxides and 4-HNE protein adducts and down-regulation of electron transport chain complexes I and V. Moreover, increased aldehydic load was associated with a 90% reduction in cardiac ALDH2 activity and increased glutathione pool. Further supporting an ALDH2 mechanism, sustained Alda-1 treatment (starting 24h after permanent LAD occlusion surgery) prevented aldehydic overload, mitochondrial dysfunction and improved ventricular function in post-MI cardiomyopathy rats. CONCLUSION Taken together, our findings demonstrate a disrupted mitochondrial metabolism along with an insufficient cardiac ALDH2-mediated aldehyde clearance during the progression of ventricular dysfunction, suggesting a potential therapeutic value of ALDH2 activators during the progression of post-myocardial infarction cardiomyopathy.
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Affiliation(s)
- Katia M S Gomes
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Márcio A C Ribeiro
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | | | - Alicia J Kowaltowski
- Departamento de Bioquímica, Instituto de Química, Universidade de Sao Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical & Systems Biology, Stanford University School of Medicine, Stanford, USA
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Brazil.
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31
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Gross ER, Zambelli VO, Small BA, Ferreira JCB, Chen CH, Mochly-Rosen D. A personalized medicine approach for Asian Americans with the aldehyde dehydrogenase 2*2 variant. Annu Rev Pharmacol Toxicol 2014; 55:107-27. [PMID: 25292432 DOI: 10.1146/annurev-pharmtox-010814-124915] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Asian Americans are one of the fastest-growing populations in the United States. A relatively large subset of this population carries a unique loss-of-function point mutation in aldehyde dehydrogenase 2 (ALDH2), ALDH2*2. Found in approximately 560 million people of East Asian descent, ALDH2*2 reduces enzymatic activity by approximately 60% to 80% in heterozygotes. Furthermore, this variant is associated with a higher risk for several diseases affecting many organ systems, including a particularly high incidence relative to the general population of esophageal cancer, myocardial infarction, and osteoporosis. In this review, we discuss the pathophysiology associated with the ALDH2*2 variant, describe why this variant needs to be considered when selecting drug treatments, and suggest a personalized medicine approach for Asian American carriers of this variant. We also discuss future clinical and translational perspectives regarding ALDH2*2 research.
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Affiliation(s)
- Eric R Gross
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Stanford, California 94305
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32
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Gomes KMS, Campos JC, Bechara LRG, Queliconi B, Lima VM, Disatnik MH, Magno P, Chen CH, Brum PC, Kowaltowski AJ, Mochly-Rosen D, Ferreira JCB. Aldehyde dehydrogenase 2 activation in heart failure restores mitochondrial function and improves ventricular function and remodelling. Cardiovasc Res 2014; 103:498-508. [PMID: 24817685 DOI: 10.1093/cvr/cvu125] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS We previously demonstrated that pharmacological activation of mitochondrial aldehyde dehydrogenase 2 (ALDH2) protects the heart against acute ischaemia/reperfusion injury. Here, we determined the benefits of chronic activation of ALDH2 on the progression of heart failure (HF) using a post-myocardial infarction model. METHODS AND RESULTS We showed that a 6-week treatment of myocardial infarction-induced HF rats with a selective ALDH2 activator (Alda-1), starting 4 weeks after myocardial infarction at a time when ventricular remodelling and cardiac dysfunction were present, improved cardiomyocyte shortening, cardiac function, left ventricular compliance and diastolic function under basal conditions, and after isoproterenol stimulation. Importantly, sustained Alda-1 treatment showed no toxicity and promoted a cardiac anti-remodelling effect by suppressing myocardial hypertrophy and fibrosis. Moreover, accumulation of 4-hydroxynonenal (4-HNE)-protein adducts and protein carbonyls seen in HF was not observed in Alda-1-treated rats, suggesting that increasing the activity of ALDH2 contributes to the reduction of aldehydic load in failing hearts. ALDH2 activation was associated with improved mitochondrial function, including elevated mitochondrial respiratory control ratios and reduced H2O2 release. Importantly, selective ALDH2 activation decreased mitochondrial Ca(2+)-induced permeability transition and cytochrome c release in failing hearts. Further supporting a mitochondrial mechanism for ALDH2, Alda-1 treatment preserved mitochondrial function upon in vitro aldehydic load. CONCLUSIONS Selective activation of mitochondrial ALDH2 is sufficient to improve the HF outcome by reducing the toxic effects of aldehydic overload on mitochondrial bioenergetics and reactive oxygen species generation, suggesting that ALDH2 activators, such as Alda-1, have a potential therapeutic value for treating HF patients.
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Affiliation(s)
- Katia M S Gomes
- Department of Anatomy, Institute of Biomedical Sciences, Paulo, Brazil
| | - Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, Paulo, Brazil
| | - Luiz R G Bechara
- Department of Anatomy, Institute of Biomedical Sciences, Paulo, Brazil
| | - Bruno Queliconi
- Departamento de Bioquímica, Instituto de Química, Paulo, Brazil
| | - Vanessa M Lima
- Department of Anatomy, Institute of Biomedical Sciences, Paulo, Brazil
| | - Marie-Helene Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Patricia C Brum
- School of Physical Education and Sports, University of Sao Paulo, Paulo, Brazil
| | | | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Julio C B Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, Paulo, Brazil Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
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Disatnik MH, Ferreira JCB, Campos JC, Gomes KS, Dourado PMM, Qi X, Mochly-Rosen D. Acute inhibition of excessive mitochondrial fission after myocardial infarction prevents long-term cardiac dysfunction. J Am Heart Assoc 2013; 2:e000461. [PMID: 24103571 PMCID: PMC3835263 DOI: 10.1161/jaha.113.000461] [Citation(s) in RCA: 240] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Ischemia and reperfusion (IR) injury remains a major cause of morbidity and mortality and multiple molecular and cellular pathways have been implicated in this injury. We determined whether acute inhibition of excessive mitochondrial fission at the onset of reperfusion improves mitochondrial dysfunction and cardiac contractility postmyocardial infarction in rats. Methods and Results We used a selective inhibitor of the fission machinery, P110, which we have recently designed. P110 treatment inhibited the interaction of fission proteins Fis1/Drp1, decreased mitochondrial fission, and improved bioenergetics in three different rat models of IR, including primary cardiomyocytes, ex vivo heart model, and an in vivo myocardial infarction model. Drp1 transiently bound to the mitochondria following IR injury and P110 treatment blocked this Drp1 mitochondrial association. Compared with control treatment, P110 (1 μmol/L) decreased infarct size by 28±2% and increased adenosine triphosphate levels by 70+1% after IR relative to control IR in the ex vivo model. Intraperitoneal injection of P110 (0.5 mg/kg) at the onset of reperfusion in an in vivo model resulted in improved mitochondrial oxygen consumption by 68% when measured 3 weeks after ischemic injury, improved cardiac fractional shortening by 35%, reduced mitochondrial H2O2 uncoupling state by 70%, and improved overall mitochondrial functions. Conclusions Together, we show that excessive mitochondrial fission at reperfusion contributes to long‐term cardiac dysfunction in rats and that acute inhibition of excessive mitochondrial fission at the onset of reperfusion is sufficient to result in long‐term benefits as evidenced by inhibiting cardiac dysfunction 3 weeks after acute myocardial infarction.
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Affiliation(s)
- Marie-Hélène Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, 94305, CA
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34
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Campos JC, Gomes KMS, Ferreira JCB. Impact of exercise training on redox signaling in cardiovascular diseases. Food Chem Toxicol 2013; 62:107-19. [PMID: 23978413 DOI: 10.1016/j.fct.2013.08.035] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/05/2013] [Accepted: 08/18/2013] [Indexed: 02/07/2023]
Abstract
Reactive oxygen and nitrogen species regulate a wide array of signaling pathways that governs cardiovascular physiology. However, oxidant stress resulting from disrupted redox signaling has an adverse impact on the pathogenesis and progression of cardiovascular diseases. In this review, we address how redox signaling and oxidant stress affect the pathophysiology of cardiovascular diseases such as ischemia-reperfusion injury, hypertension and heart failure. We also summarize the benefits of exercise training in tackling the hyperactivation of cellular oxidases and mitochondrial dysfunction seen in cardiovascular diseases.
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Affiliation(s)
- Juliane C Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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35
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Figueira TR, Barros MH, Camargo AA, Castilho RF, Ferreira JCB, Kowaltowski AJ, Sluse FE, Souza-Pinto NC, Vercesi AE. Mitochondria as a source of reactive oxygen and nitrogen species: from molecular mechanisms to human health. Antioxid Redox Signal 2013; 18:2029-74. [PMID: 23244576 DOI: 10.1089/ars.2012.4729] [Citation(s) in RCA: 304] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mitochondrially generated reactive oxygen species are involved in a myriad of signaling and damaging pathways in different tissues. In addition, mitochondria are an important target of reactive oxygen and nitrogen species. Here, we discuss basic mechanisms of mitochondrial oxidant generation and removal and the main factors affecting mitochondrial redox balance. We also discuss the interaction between mitochondrial reactive oxygen and nitrogen species, and the involvement of these oxidants in mitochondrial diseases, cancer, neurological, and cardiovascular disorders.
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Affiliation(s)
- Tiago R Figueira
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
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36
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Yogalingam G, Hwang S, Ferreira JCB, Mochly-Rosen D. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) phosphorylation by protein kinase Cδ (PKCδ) inhibits mitochondria elimination by lysosomal-like structures following ischemia and reoxygenation-induced injury. J Biol Chem 2013; 288:18947-60. [PMID: 23653351 DOI: 10.1074/jbc.m113.466870] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
After cardiac ischemia and reperfusion or reoxygenation (I/R), damaged mitochondria propagate tissue injury by promoting cell death. One possible mechanism to protect from I/R-induced injury is the elimination of damaged mitochondria by mitophagy. Here we identify new molecular events that lead to mitophagy using a cell culture model and whole hearts subjected to I/R. We found that I/R induces glyceraldehyde-3-phosphate dehydrogenase (GAPDH) association with mitochondria and promotes direct uptake of damaged mitochondria into multiorganellar lysosomal-like (LL) structures for elimination independently of the macroautophagy pathway. We also found that protein kinase C δ (PKCδ) inhibits GAPDH-driven mitophagy by phosphorylating the mitochondrially associated GAPDH at threonine 246 following I/R. Phosphorylated GAPDH promotes the accumulation of mitochondria at the periphery of LL structures, which coincides with increased mitochondrial permeability. Either inhibition of PKCδ or expression of a phosphorylation-defective GAPDH mutant during I/R promotes a reduction in mitochondrial mass and apoptosis, thus indicating rescued mitophagy. Taken together, we identified a GAPDH/PKCδ signaling switch, which is activated during oxidative stress to regulate the balance between cell survival by mitophagy and cell death due to accumulation of damaged mitochondria.
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Affiliation(s)
- Gouri Yogalingam
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California 94305-5174, USA
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37
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Campos JC, Queliconi BB, Dourado PMM, Cunha TF, Zambelli VO, Bechara LRG, Kowaltowski AJ, Brum PC, Mochly-Rosen D, Ferreira JCB. Exercise training restores cardiac protein quality control in heart failure. PLoS One 2012; 7:e52764. [PMID: 23300764 PMCID: PMC3531365 DOI: 10.1371/journal.pone.0052764] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 11/22/2012] [Indexed: 12/16/2022] Open
Abstract
Exercise training is a well-known coadjuvant in heart failure treatment; however, the molecular mechanisms underlying its beneficial effects remain elusive. Despite the primary cause, heart failure is often preceded by two distinct phenomena: mitochondria dysfunction and cytosolic protein quality control disruption. The objective of the study was to determine the contribution of exercise training in regulating cardiac mitochondria metabolism and cytosolic protein quality control in a post-myocardial infarction-induced heart failure (MI-HF) animal model. Our data demonstrated that isolated cardiac mitochondria from MI-HF rats displayed decreased oxygen consumption, reduced maximum calcium uptake and elevated H₂O₂ release. These changes were accompanied by exacerbated cardiac oxidative stress and proteasomal insufficiency. Declined proteasomal activity contributes to cardiac protein quality control disruption in our MI-HF model. Using cultured neonatal cardiomyocytes, we showed that either antimycin A or H₂O₂ resulted in inactivation of proteasomal peptidase activity, accumulation of oxidized proteins and cell death, recapitulating our in vivo model. Of interest, eight weeks of exercise training improved cardiac function, peak oxygen uptake and exercise tolerance in MI-HF rats. Moreover, exercise training restored mitochondrial oxygen consumption, increased Ca²⁺-induced permeability transition and reduced H₂O₂ release in MI-HF rats. These changes were followed by reduced oxidative stress and better cardiac protein quality control. Taken together, our findings uncover the potential contribution of mitochondrial dysfunction and cytosolic protein quality control disruption to heart failure and highlight the positive effects of exercise training in re-establishing cardiac mitochondrial physiology and protein quality control, reinforcing the importance of this intervention as a non-pharmacological tool for heart failure therapy.
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Affiliation(s)
- Juliane C. Campos
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Bruno B. Queliconi
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Sao Paulo, Brazil
| | | | - Telma F. Cunha
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Luiz R. G. Bechara
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Alicia J. Kowaltowski
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Sao Paulo, Brazil
| | - Patricia C. Brum
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Julio C. B. Ferreira
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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38
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de Souza EO, Tricoli V, Roschel H, Brum PC, Bacurau AVN, Ferreira JCB, Aoki MS, Neves M, Aihara AY, da Rocha Correa Fernandes A, Ugrinowitsch C. Molecular adaptations to concurrent training. Int J Sports Med 2012; 34:207-13. [PMID: 23044732 DOI: 10.1055/s-0032-1312627] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study investigated the chronic effects of concurrent training (CT) on morphological and molecular adaptations. 37 men (age=23.7±5.5 year) were divided into 4 groups: interval (IT), strength (ST) and concurrent (CT) training and a control group (C) and underwent 8 weeks of training. Maximum strength (1RM) and muscle cross-sectional area (CSA) were evaluated before and after training. Muscle samples were obtained before the training program and 48 h after the last training session. VO2max improved in 5±0.95% and 15±1.3% (pre- to post-test) in groups CT and IT, respectively, when compared to C. Time to exhaustion (TE) improved from pre- to post-test when compared to C (CT=6.1±0.58%; IT=8.3±0.88%; ST=3.2±0.66%). 1RM increased from pre-to post-test only in ST and CT groups (ST=18.5±3.16%; CT=17.6±3.01%). Similarly, ST and CT groups increased quadriceps CSA from pre-to post-test (6.2±1.4%; 7.8±1.66%). The p70S6K1 total protein content increased after CT. The ST group showed increased Akt phosphorylation at Ser473 (45.0±3.3%) whereas AMPK phosphorylation at Thr172 increased only in IT group, (100±17.6%). In summary, our data suggest that despite the differences in molecular adaptations between training regimens, CT did not blunt muscle strength and hypertrophy increments when compared with ST.
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Affiliation(s)
- E O de Souza
- Department of Sport, School of Physical Education and Sport, University of São Paulo, SP, Brazil.
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39
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Cunha TF, Moreira JBN, Paixão NA, Campos JC, Monteiro AWA, Bacurau AVN, Bueno CR, Ferreira JCB, Brum PC. Aerobic exercise training upregulates skeletal muscle calpain and ubiquitin-proteasome systems in healthy mice. J Appl Physiol (1985) 2012; 112:1839-46. [DOI: 10.1152/japplphysiol.00346.2011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aerobic exercise training (AET) is an important mechanical stimulus that modulates skeletal muscle protein turnover, leading to structural rearrangement. Since the ubiquitin-proteasome system (UPS) and calpain system are major proteolytic pathways involved in protein turnover, we aimed to investigate the effects of intensity-controlled AET on the skeletal muscle UPS and calpain system and their association to training-induced structural adaptations. Long-lasting effects of AET were studied in C57BL/6J mice after 2 or 8 wk of AET. Plantaris cross-sectional area (CSA) and capillarization were assessed by myosin ATPase staining. mRNA and protein expression levels of main components of the UPS and calpain system were evaluated in plantaris by real-time PCR and Western immunoblotting, respectively. No proteolytic system activation was observed after 2 wk of AET. Eight weeks of AET resulted in improved running capacity, plantaris capillarization, and CSA. Muscle RING finger-1 mRNA expression was increased in 8-wk-trained mice. Accordingly, elevated 26S proteasome activity was observed in the 8-wk-trained group, without accumulation of ubiquitinated or carbonylated proteins. In addition, calpain abundance was increased by 8 wk of AET, whereas no difference was observed in its endogenous inhibitor calpastatin. Taken together, our findings indicate that skeletal muscle enhancements, as evidenced by increased running capacity, plantaris capillarization, and CSA, occurred in spite of the upregulated UPS and calpain system, suggesting that overactivation of skeletal muscle proteolytic systems is not restricted to atrophying states. Our data provide evidence for the contribution of the UPS and calpain system to metabolic turnover of myofibrillar proteins and skeletal muscle adaptations to AET.
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Affiliation(s)
- Telma F. Cunha
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Jose B. N. Moreira
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Nathalie A. Paixão
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Juliane C. Campos
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Alex W. A. Monteiro
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Aline V. N. Bacurau
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Carlos R. Bueno
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- Human Genome Research Center, University of São Paulo, São Paulo, Brazil; and
| | - Julio C. B. Ferreira
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California
| | - Patricia C. Brum
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
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40
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Ferreira JCB, Boer BN, Grinberg M, Brum PC, Mochly-Rosen D. Protein quality control disruption by PKCβII in heart failure; rescue by the selective PKCβII inhibitor, βIIV5-3. PLoS One 2012; 7:e33175. [PMID: 22479367 PMCID: PMC3316563 DOI: 10.1371/journal.pone.0033175] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 02/05/2012] [Indexed: 11/18/2022] Open
Abstract
Myocardial remodeling and heart failure (HF) are common sequelae of many forms of cardiovascular disease and a leading cause of mortality worldwide. Accumulation of damaged cardiac proteins in heart failure has been described. However, how protein quality control (PQC) is regulated and its contribution to HF development are not known. Here, we describe a novel role for activated protein kinase C isoform βII (PKCβII) in disrupting PQC. We show that active PKCβII directly phosphorylated the proteasome and inhibited proteasomal activity in vitro and in cultured neonatal cardiomyocytes. Importantly, inhibition of PKCβII, using a selective PKCβII peptide inhibitor (βIIV5-3), improved proteasomal activity and conferred protection in cultured neonatal cardiomyocytes. We also show that sustained inhibition of PKCβII increased proteasomal activity, decreased accumulation of damaged and misfolded proteins and increased animal survival in two rat models of HF. Interestingly, βIIV5-3-mediated protection was blunted by sustained proteasomal inhibition in HF. Finally, increased cardiac PKCβII activity and accumulation of misfolded proteins associated with decreased proteasomal function were found also in remodeled and failing human hearts, indicating a potential clinical relevance of our findings. Together, our data highlights PKCβII as a novel inhibitor of proteasomal function. PQC disruption by increased PKCβII activity in vivo appears to contribute to the pathophysiology of heart failure, suggesting that PKCβII inhibition may benefit patients with heart failure. (218 words).
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Affiliation(s)
- Julio C B Ferreira
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California, United States of America
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Abstract
Acute myocardial infarction (MI) and its sequelae are leading causes of morbidity and mortality worldwide. Nitroglycerin (glyceryl trinitrate [GTN]) remains a first-line treatment for angina pectoris and acute MI. Nitroglycerin achieves its benefit by giving rise to nitric oxide (NO), which causes vasodilation and increases blood flow to the myocardium. However, continuous delivery of GTN results in tolerance, limiting the use of this drug. Nitroglycerin tolerance is caused, at least in part, by inactivation of aldehyde dehydrogenase 2 (ALDH2), an enzyme that converts GTN to the vasodilator, NO. We recently found that in a MI model in animals, in addition to GTN's effect on the vasculature, sustained treatment negatively affected cardiomyocyte viability following ischemia, thus resulting in increased infarct size. Coadministration of Alda-1, an activator of ALDH2, with GTN improves metabolism of reactive aldehyde adducts and prevents the GTN-induced increase in cardiac dysfunction following MI. In this review, we describe the molecular mechanisms associated with the benefits and risks of GTN administration in MI.
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Affiliation(s)
- Julio C B Ferreira
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305-5174, USA
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Ferreira JCB, Koyanagi T, Palaniyandi SS, Fajardo G, Churchill EN, Budas G, Disatnik MH, Bernstein D, Brum PC, Mochly-Rosen D. Pharmacological inhibition of βIIPKC is cardioprotective in late-stage hypertrophy. J Mol Cell Cardiol 2011; 51:980-7. [PMID: 21920368 DOI: 10.1016/j.yjmcc.2011.08.025] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 08/04/2011] [Accepted: 08/25/2011] [Indexed: 11/16/2022]
Abstract
We previously found that in the hearts of hypertensive Dahl salt-sensitive rats, βIIPKC levels increase during the transition from compensated cardiac hypertrophy to cardiac dysfunction. Here we showed that a six-week treatment of these hypertensive rats with a βIIPKC-specific inhibitor, βIIV5-3, prolonged their survival by at least 6weeks, suppressed myocardial fibrosis and inflammation, and delayed the transition from compensated hypertrophy to cardiac dysfunction. In addition, changes in the levels of the Ca(2+)-handling proteins, SERCA2 and the Na(+)/Ca(2+) exchanger, as well as troponin I phosphorylation, seen in the control-treated hypertensive rats were not observed in the βΙΙPKC-treated rats, suggesting that βΙΙPKC contributes to the regulation of calcium levels in the myocardium. In contrast, treatment with the selective inhibitor of βIPKC, an alternative spliced form of βIIPKC, had no beneficial effects in these rats. We also found that βIIV5-3, but not βIV5-3, improved calcium handling in isolated rat cardiomyocytes and enhanced contractility in isolated rat hearts. In conclusion, our data using an in vivo model of cardiac dysfunction (late-phase hypertrophy), suggest that βIIPKC contributes to the pathology associated with heart failure and thus an inhibitor of βIIPKC may be a potential treatment for this disease.
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Affiliation(s)
- Julio C B Ferreira
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305-5174, USA
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Ferreira JCB, Moreira JBN, Campos JC, Pereira MG, Mattos KC, Coelho MA, Brum PC. Angiotensin receptor blockade improves the net balance of cardiac Ca(2+) handling-related proteins in sympathetic hyperactivity-induced heart failure. Life Sci 2011; 88:578-85. [PMID: 21277865 DOI: 10.1016/j.lfs.2011.01.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 12/10/2010] [Accepted: 01/10/2011] [Indexed: 10/18/2022]
Abstract
AIMS The clinical benefits of angiotensin II type 1 (AT1) receptor blockers (ARB) in heart failure (HF) include cardiac anti-remodeling and improved ventricular function. However, the cellular mechanisms underlying the benefits of ARB on ventricular function need to be better clarified. In the present manuscript, we evaluated the effects of AT1 receptor blockade on the net balance of Ca(2+) handling proteins in hearts of mice lacking α(2A) and α(2C) adrenoceptors (α(2A)/α(2C)ARKO), which develop sympathetic hyperactivity (SH) induced-HF. MAIN METHODS A cohort of male wild-type (WT) and congenic α(2A)/α(2C)ARKO mice in a C57BL6/J genetic background (5-7mo of age) was randomly assigned to receive either placebo or ARB (Losartan, 10mg/kg for 8wks). Ventricular function (VF) was assessed by echocardiography, and cardiac myocyte width and ventricular fibrosis by a computer-assisted morphometric system. Sarcoplasmic reticulum Ca(2+) ATPase (SERCA2), phospholamban (PLN), phospho-Ser(16)-PLN, phospho-Thr(17)-PLN, phosphatase 1 (PP1), Na(+)-Ca(2+) exchanger (NCX), Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) and phospho-Thr(286)-CaMKII were analyzed by Western blot. KEY FINDINGS α(2A)/α(2C)ARKO mice displayed ventricular dysfunction, cardiomyocyte hypertrophy and cardiac fibrosis paralleled by decreased SERCA2 and increased phospho-Thr(17)-PLN, CaMKII, phospho-Thr(286)-CaMKII and NCX levels. ARB induced anti-cardiac remodeling effect and improved VF in α(2A)/α(2C)ARKO associated with increased SERCA2 and phospho-Ser(16)-PLN levels, and SERCA2:NCX ratio. Additionally, ARB decreased phospho-Thr(17)-PLN levels as well as reestablished NCX, CaMKII and phospho-Thr(286)-CaMKII toward WT levels. SIGNIFICANCE Altogether, these data provide new insights on intracellular Ca(2+) regulatory mechanisms underlying improved ventricular function by ARB therapy in HF.
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Affiliation(s)
- Julio C B Ferreira
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
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Ferreira JCB, Bacurau AV, Bueno CR, Cunha TC, Tanaka LY, Jardim MA, Ramires PR, Brum PC. Aerobic exercise training improves Ca2+ handling and redox status of skeletal muscle in mice. Exp Biol Med (Maywood) 2010; 235:497-505. [DOI: 10.1258/ebm.2009.009165] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Exercise training is known to promote relevant changes in the properties of skeletal muscle contractility toward powerful fibers. However, there are few studies showing the effect of a well-established exercise training protocol on Ca2+ handling and redox status in skeletal muscles with different fiber-type compositions. We have previously standardized a valid and reliable protocol to improve endurance exercise capacity in mice based on maximal lactate steady-state workload (MLSSw). The aim of this study was to investigate the effect of exercise training, performed at MLSSw, on the skeletal muscle Ca2+ handling-related protein levels and cellular redox status in soleus and plantaris. Male C57BL/6J mice performed treadmill training at MLSSw over a period of eight weeks. Muscle fiber-typing was determined by myosin ATPase histochemistry, citrate synthase activity by spectrophotometric assay, Ca2+ handling-related protein levels by Western blot and reduced to oxidized glutathione ratio (GSH:GSSG) by high-performance liquid chromatography. Trained mice displayed higher running performance and citrate synthase activity compared with untrained mice. Improved running performance in trained mice was paralleled by fast-to-slow fiber-type shift and increased capillary density in both plantaris and soleus. Exercise training increased dihydropyridine receptor (DHPR) α2 subunit, ryanodine receptor and Na+/Ca2+ exchanger levels in plantaris and soleus. Moreover, exercise training elevated DHPR β1 subunit and sarcoplasmic reticulum Ca2+-ATPase (SERCA) 1 levels in plantaris and SERCA2 levels in soleus of trained mice. Skeletal muscle GSH content and GSH:GSSG ratio was increased in plantaris and soleus of trained mice. Taken together, our findings indicate that MLSSw exercise-induced better running performance is, in part, due to increased levels of proteins involved in skeletal muscle Ca2+ handling, whereas this response is partially dependent on specificity of skeletal muscle fiber-type composition. Finally, we demonstrated an augmented cellular redox status and GSH antioxidant capacity in trained mice.
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Affiliation(s)
- Julio C B Ferreira
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Aline V Bacurau
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Carlos R Bueno
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Telma C Cunha
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Leonardo Y Tanaka
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Maira A Jardim
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Paulo R Ramires
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
| | - Patricia C Brum
- School of Physical Education and Sport, University of Sao Paulo (USP), São Paulo 05508-900, Brazil
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Oliveira RSF, Ferreira JCB, Gomes ERM, Paixão NA, Rolim NPL, Medeiros A, Guatimosim S, Brum PC. Cardiac anti-remodelling effect of aerobic training is associated with a reduction in the calcineurin/NFAT signalling pathway in heart failure mice. J Physiol 2009; 587:3899-910. [PMID: 19505981 DOI: 10.1113/jphysiol.2009.173948] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cardiomyocyte hypertrophy occurs in response to a variety of physiological and pathological stimuli. While pathological hypertrophy in heart failure is usually coupled with depressed contractile function, physiological hypertrophy associates with increased contractility. In the present study, we explored whether 8 weeks of moderate intensity exercise training would lead to a cardiac anti-remodelling effect in an experimental model of heart failure associated with a deactivation of a pathological (calcineurin/NFAT, CaMKII/HDAC) or activation of a physiological (Akt-mTOR) hypertrophy signalling pathway. The cardiac dysfunction, exercise intolerance, left ventricle dilatation, increased heart weight and cardiomyocyte hypertrophy from mice lacking alpha(2A) and alpha(2C) adrenoceptors (alpha(2A)/alpha(2C)ARKO mice) were associated with sympathetic hyperactivity induced heart failure. The relative contribution of Ca(2+)-calmodulin high-affinity (calcineurin/NFAT) and low-affinity (CaMKII/HDAC) targets to pathological hypertrophy of alpha(2A)/alpha(2C)ARKO mice was verified. While nuclear calcineurin B, NFATc3 and GATA-4 translocation were significantly increased in alpha(2A)/alpha(2C)ARKO mice, no changes were observed in CaMKII/HDAC activation. As expected, cyclosporine treatment decreased nuclear translocation of calcineurin/NFAT in alpha(2A)/alpha(2C)ARKO mice, which was associated with improved ventricular function and a pronounced anti-remodelling effect. The Akt/mTOR signalling pathway was not activated in alpha(2A)/alpha(2C)ARKO mice. Exercise training improved cardiac function and exercise capacity in alpha(2A)/alpha(2C)ARKO mice and decreased heart weight and cardiomyocyte width paralleled by diminished nuclear NFATc3 and GATA-4 translocation as well as GATA-4 expression levels. When combined, these findings support the notion that deactivation of calcineurin/NFAT pathway-induced pathological hypertrophy is a preferential mechanism by which exercise training leads to the cardiac anti-remodelling effect in heart failure.
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Affiliation(s)
- R S F Oliveira
- School of Physical Education and Sport, University of Sao Paulo, SP, Brazil
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Bacurau AVN, Jardim MA, Ferreira JCB, Bechara LRG, Bueno CR, Alba-Loureiro TC, Negrao CE, Casarini DE, Curi R, Ramires PR, Moriscot AS, Brum PC. Sympathetic hyperactivity differentially affects skeletal muscle mass in developing heart failure: role of exercise training. J Appl Physiol (1985) 2009; 106:1631-40. [PMID: 19179649 DOI: 10.1152/japplphysiol.91067.2008] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Sympathetic hyperactivity (SH) is a hallmark of heart failure (HF), and several lines of evidence suggest that SH contributes to HF-induced skeletal myopathy. However, little is known about the influence of SH on skeletal muscle morphology and metabolism in a setting of developing HF, taking into consideration muscles with different fiber compositions. The contribution of SH on exercise tolerance and skeletal muscle morphology and biochemistry was investigated in 3- and 7-mo-old mice lacking both alpha(2A)- and alpha(2C)-adrenergic receptor subtypes (alpha(2A)/alpha(2C)ARKO mice) that present SH with evidence of HF by 7 mo. To verify whether exercise training (ET) would prevent skeletal muscle myopathy in advanced-stage HF, alpha(2A)/alpha(2C)ARKO mice were exercised from 5 to 7 mo of age. At 3 mo, alpha(2A)/alpha(2C)ARKO mice showed no signs of HF and preserved exercise tolerance and muscular norepinephrine with no changes in soleus morphology. In contrast, plantaris muscle of alpha(2A)/alpha(2C)ARKO mice displayed hypertrophy and fiber type shift (IIA --> IIX) paralleled by capillary rarefaction, increased hexokinase activity, and oxidative stress. At 7 mo, alpha(2A)/alpha(2C)ARKO mice displayed exercise intolerance and increased muscular norepinephrine, muscular atrophy, capillary rarefaction, and increased oxidative stress. ET reestablished alpha(2A)/alpha(2C)ARKO mouse exercise tolerance to 7-mo-old wild-type levels and prevented muscular atrophy and capillary rarefaction associated with reduced oxidative stress. Collectively, these data provide direct evidence that SH is a major factor contributing to skeletal muscle morphological changes in a setting of developing HF. ET prevented skeletal muscle myopathy in alpha(2A)/alpha(2C)ARKO mice, which highlights its importance as a therapeutic tool for HF.
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Affiliation(s)
- Aline V N Bacurau
- Escola de Educação Física e Esporte da Universidade de São Paulo, Departamento de Biodinâmica do Movimento do Corpo Humano, Av. Professor Mello Moraes, 65, Butantã, São Paulo 05508-900, Brazil
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Ferreira JCB, Rolim NPL, Bartholomeu JB, Gobatto CA, Kokubun E, Brum PC. Maximal lactate steady state in running mice: effect of exercise training. Clin Exp Pharmacol Physiol 2007; 34:760-5. [PMID: 17600553 DOI: 10.1111/j.1440-1681.2007.04635.x] [Citation(s) in RCA: 208] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1. Maximal lactate steady state (MLSS) corresponds to the highest blood lactate concentration (MLSSc) and workload (MLSSw) that can be maintained over time without continual blood lactate accumulation and is considered an important marker of endurance exercise capacity. The present study was undertaken to determine MLSSw and MLSSc in running mice. In addition, we provide an exercise training protocol for mice based on MLSSw. 2. Maximal lactate steady state was determined by blood sampling during multiple sessions of constant-load exercise varying from 9 to 21 m/min in adult male C57BL/6J mice. The constant-load test lasted at least 21 min. The blood lactate concentration was analysed at rest and then at 7 min intervals during exercise. 3. The MLSSw was found to be 15.1 +/- 0.7 m/min and corresponded to 60 +/- 2% of maximal speed achieved during the incremental exercise testing. Intra- and interobserver variability of MLSSc showed reproducible findings. Exercise training was performed at MLSSw over a period of 8 weeks for 1 h/day and 5 days/week. Exercise training led to resting bradycardia (21%) and increased running performance (28%). Of interest, the MLSSw of trained mice was significantly higher than that in sedentary littermates (19.0 +/- 0.5 vs 14.2 +/- 0.5 m/min; P = 0.05), whereas MLSSc remained unchanged (3.0 mmol/L). 4. Altogether, we provide a valid and reliable protocol to improve endurance exercise capacity in mice performed at highest workload with predominant aerobic metabolism based on MLSS assessment.
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Affiliation(s)
- Julio C B Ferreira
- School of Physical Education and Sport, Department of Biodynamics, University of São Paulo, São Paulo, Brazil
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