1
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Amar D, Gay NR, Jimenez-Morales D, Jean Beltran PM, Ramaker ME, Raja AN, Zhao B, Sun Y, Marwaha S, Gaul DA, Hershman SG, Ferrasse A, Xia A, Lanza I, Fernández FM, Montgomery SB, Hevener AL, Ashley EA, Walsh MJ, Sparks LM, Burant CF, Rector RS, Thyfault J, Wheeler MT, Goodpaster BH, Coen PM, Schenk S, Bodine SC, Lindholm ME. The mitochondrial multi-omic response to exercise training across rat tissues. Cell Metab 2024; 36:1411-1429.e10. [PMID: 38701776 PMCID: PMC11152996 DOI: 10.1016/j.cmet.2023.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/27/2023] [Accepted: 12/15/2023] [Indexed: 05/05/2024]
Abstract
Mitochondria have diverse functions critical to whole-body metabolic homeostasis. Endurance training alters mitochondrial activity, but systematic characterization of these adaptations is lacking. Here, the Molecular Transducers of Physical Activity Consortium mapped the temporal, multi-omic changes in mitochondrial analytes across 19 tissues in male and female rats trained for 1, 2, 4, or 8 weeks. Training elicited substantial changes in the adrenal gland, brown adipose, colon, heart, and skeletal muscle. The colon showed non-linear response dynamics, whereas mitochondrial pathways were downregulated in brown adipose and adrenal tissues. Protein acetylation increased in the liver, with a shift in lipid metabolism, whereas oxidative proteins increased in striated muscles. Exercise-upregulated networks were downregulated in human diabetes and cirrhosis. Knockdown of the central network protein 17-beta-hydroxysteroid dehydrogenase 10 (HSD17B10) elevated oxygen consumption, indicative of metabolic stress. We provide a multi-omic, multi-tissue, temporal atlas of the mitochondrial response to exercise training and identify candidates linked to mitochondrial dysfunction.
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Affiliation(s)
- David Amar
- Stanford University, Stanford, CA, USA; Insitro, San Francisco, CA, USA
| | | | | | | | | | | | | | - Yifei Sun
- Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | | | - David A Gaul
- Georgia Institute of Technology, Atlanta, GA, USA
| | | | | | - Ashley Xia
- National Institutes of Health, Bethesda, MD, USA
| | | | | | | | | | | | - Martin J Walsh
- Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - Lauren M Sparks
- Translational Research Institute AdventHealth, Orlando, FL, USA
| | | | | | - John Thyfault
- University of Kansas Medical Center, Kansas City, KS, USA
| | | | | | - Paul M Coen
- Translational Research Institute AdventHealth, Orlando, FL, USA
| | - Simon Schenk
- University of California, San Diego, La Jolla, CA, USA
| | - Sue C Bodine
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
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2
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Niemi N. MOF moves into mitochondria. Nat Metab 2023; 5:1846-1847. [PMID: 37813993 DOI: 10.1038/s42255-023-00892-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Affiliation(s)
- Natalie Niemi
- Department of Biochemistry & Molecular Biophysics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA.
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3
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Guo X, Zhou Q, Jin J, Lan F, Wen C, Li J, Yang N, Sun C. Hepatic steatosis is associated with dysregulated cholesterol metabolism and altered protein acetylation dynamics in chickens. J Anim Sci Biotechnol 2023; 14:108. [PMID: 37568219 PMCID: PMC10422840 DOI: 10.1186/s40104-023-00910-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/28/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Hepatic steatosis is a prevalent manifestation of fatty liver, that has detrimental effect on the health and productivity of laying hens, resulting in economic losses to the poultry industry. Here, we aimed to systematically investigate the genetic regulatory mechanisms of hepatic steatosis in laying hens. METHODS Ninety individuals with the most prominent characteristics were selected from 686 laying hens according to the accumulation of lipid droplets in the liver, and were graded into three groups, including the control, mild hepatic steatosis and severe hepatic steatosis groups. A combination of transcriptome, proteome, acetylome and lipidome analyses, along with bioinformatics analysis were used to screen the key biological processes, modifications and lipids associated with hepatic steatosis. RESULTS The rationality of the hepatic steatosis grouping was verified through liver biochemical assays and RNA-seq. Hepatic steatosis was characterized by increased lipid deposition and multiple metabolic abnormalities. Integration of proteome and acetylome revealed that differentially expressed proteins (DEPs) interacted with differentially acetylated proteins (DAPs) and were involved in maintaining the metabolic balance in the liver. Acetylation alterations mainly occurred in the progression from mild to severe hepatic steatosis, i.e., the enzymes in the fatty acid oxidation and bile acid synthesis pathways were significantly less acetylated in severe hepatic steatosis group than that in mild group (P < 0.05). Lipidomics detected a variety of sphingolipids (SPs) and glycerophospholipids (GPs) were negatively correlated with hepatic steatosis (r ≤ -0.5, P < 0.05). Furthermore, the severity of hepatic steatosis was associated with a decrease in cholesterol and bile acid synthesis and an increase in exogenous cholesterol transport. CONCLUSIONS In addition to acquiring a global and thorough picture of hepatic steatosis in laying hens, we were able to reveal the role of acetylation in hepatic steatosis and depict the changes in hepatic cholesterol metabolism. The findings provides a wealth of information to facilitate a deeper understanding of the pathophysiology of fatty liver and contributes to the development of therapeutic strategies.
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Affiliation(s)
- Xiaoli Guo
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Qianqian Zhou
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Jiaming Jin
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Fangren Lan
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Chaoliang Wen
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Junying Li
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Ning Yang
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
| | - Congjiao Sun
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, 100193 China
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4
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Muñoz JP, Basei FL, Rojas ML, Galvis D, Zorzano A. Mechanisms of Modulation of Mitochondrial Architecture. Biomolecules 2023; 13:1225. [PMID: 37627290 PMCID: PMC10452872 DOI: 10.3390/biom13081225] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Mitochondrial network architecture plays a critical role in cellular physiology. Indeed, alterations in the shape of mitochondria upon exposure to cellular stress can cause the dysfunction of these organelles. In this scenario, mitochondrial dynamics proteins and the phospholipid composition of the mitochondrial membrane are key for fine-tuning the modulation of mitochondrial architecture. In addition, several factors including post-translational modifications such as the phosphorylation, acetylation, SUMOylation, and o-GlcNAcylation of mitochondrial dynamics proteins contribute to shaping the plasticity of this architecture. In this regard, several studies have evidenced that, upon metabolic stress, mitochondrial dynamics proteins are post-translationally modified, leading to the alteration of mitochondrial architecture. Interestingly, several proteins that sustain the mitochondrial lipid composition also modulate mitochondrial morphology and organelle communication. In this context, pharmacological studies have revealed that the modulation of mitochondrial shape and function emerges as a potential therapeutic strategy for metabolic diseases. Here, we review the factors that modulate mitochondrial architecture.
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Affiliation(s)
- Juan Pablo Muñoz
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
| | - Fernanda Luisa Basei
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas, 13083-871 Campinas, SP, Brazil
| | - María Laura Rojas
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
| | - David Galvis
- Programa de Química Farmacéutica, Universidad CES, Medellín 050031, Colombia
| | - Antonio Zorzano
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
- Institute for Research in Biomedicine (IRB Barcelona), 08028 Barcelona, Spain
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
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5
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Aghayev M, Arias-Alvarado A, Ilchenko S, Lepp J, Scott I, Chen YR, Zhang GF, Tsai TH, Kasumov T. A high-fat diet increases hepatic mitochondrial turnover through restricted acetylation in a NAFLD mouse model. Am J Physiol Endocrinol Metab 2023; 325:E83-E98. [PMID: 37224468 PMCID: PMC10312330 DOI: 10.1152/ajpendo.00310.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023]
Abstract
Lysine acetylation of proteins has emerged as a key posttranslational modification (PTM) that regulates mitochondrial metabolism. Acetylation may regulate energy metabolism by inhibiting and affecting the stability of metabolic enzymes and oxidative phosphorylation (OxPhos) subunits. Although protein turnover can be easily measured, due to the low abundance of modified proteins, it has been difficult to evaluate the effect of acetylation on the stability of proteins in vivo. We applied 2H2O-metabolic labeling coupled with immunoaffinity and high-resolution mass spectrometry method to measure the stability of acetylated proteins in mouse liver based on their turnover rates. As a proof-of-concept, we assessed the consequence of high-fat diet (HFD)-induced altered acetylation in protein turnover in LDL receptor-deficient (LDLR-/-) mice susceptible to diet-induced nonalcoholic fatty liver disease (NAFLD). HFD feeding for 12 wk led to steatosis, the early stage of NAFLD. A significant reduction in acetylation of hepatic proteins was observed in NAFLD mice, based on immunoblot analysis and label-free quantification with mass spectrometry. Compared with control mice on a normal diet, NAFLD mice had overall increased turnover rates of hepatic proteins, including mitochondrial metabolic enzymes (0.159 ± 0.079 vs. 0.132 ± 0.068 day-1), suggesting their reduced stability. Also, acetylated proteins had slower turnover rates (increased stability) than native proteins in both groups (0.096 ± 0.056 vs. 0.170 ± 0.059 day-1 in control, and 0.111 ± 0.050 vs. 0.208 ± 0.074 day-1 in NAFLD). Furthermore, association analysis revealed a relationship between the HFD-induced decrease in acetylation and increased turnover rates for hepatic proteins in NAFLD mice. These changes were associated with increased expressions of the hepatic mitochondrial transcriptional factor (TFAM) and complex II subunit without any changes to other OxPhos proteins, suggesting that enhanced mitochondrial biogenesis prevented restricted acetylation-mediated depletion of mitochondrial proteins. We conclude that decreased acetylation of mitochondrial proteins may contribute to adaptive improved hepatic mitochondrial function in the early stages of NAFLD.NEW & NOTEWORTHY This is the first method to quantify acetylome dynamics in vivo. This method revealed acetylation-mediated altered hepatic mitochondrial protein turnover in response to a high-fat diet in a mouse model of NAFLD.
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Affiliation(s)
- Mirjavid Aghayev
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio, United States
| | - Andrea Arias-Alvarado
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio, United States
| | - Sergei Ilchenko
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio, United States
| | - Josephine Lepp
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio, United States
| | - Iain Scott
- Cardiology Division, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
| | - Yeong-Renn Chen
- Department of Integrative Medical Sciences, College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio, United States
| | - Guo-Fang Zhang
- Division of Endocrinology, Metabolism and Nutrition, Duke Molecular Physiology Institute, Duke University, Durham North Carolina, United States
- Department of Medicine, Duke University, Durham North Carolina, United States
| | - Tsung-Heng Tsai
- Department of Mathematical Sciences, Kent State University, Kent, Ohio, United States
| | - Takhar Kasumov
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio, United States
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6
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Kundu A, Gali S, Sharma S, Kacew S, Yoon S, Jeong HG, Kwak JH, Kim HS. Dendropanoxide Alleviates Thioacetamide-induced Hepatic Fibrosis via Inhibition of ROS Production and Inflammation in BALB/ C Mice. Int J Biol Sci 2023; 19:2630-2647. [PMID: 37324954 PMCID: PMC10266086 DOI: 10.7150/ijbs.80743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 04/23/2023] [Indexed: 06/17/2023] Open
Abstract
Hepatic fibrosis results from overproduction and excessive accumulation of extracellular matrix (ECM) proteins in hepatocytes. Although the beneficial effects of dendropanoxide (DPx) isolated from Dendropanax morbifera have been studied, its role as an anti-fibrotic agent remains elucidated. We investigated the protective effect of DPx in BALB/C mice that received thioacetamide (TAA) intraperitoneally for 6 weeks. Later DPx (20 mg/kg/day) or silymarin (50 mg/kg/day) was administered daily for 6 weeks, followed by biochemical and histological analyses of each group. Hematoxylin and eosin staining of the livers showed TAA-induced hepatic fibrosis, which was significantly reduced in the DPx group. DPx treatment significantly decreased TAA-induced hyperlipidemia as evidenced by the decreased AST, ALT, ALP, γ-GTP and serum TG concentrations and reduced the activities of catalase (CAT) and superoxide dismutase (SOD) activity. ELISA revealed reduced levels of total glutathione (GSH), malondialdehyde (MDA) and Inflammatory factors (IL-6, IL-1β, and TNF-α). Immunostaining showed reduced in collagen-1, α-SMA, and TGF-β1 expression and western blotting showed reduced levels of the apoptotic proteins, TGF-β1, p-Smad2/3, and Smad4. RT-qPCR and Western blotting revealed modifications in SIRT1, SIRT3 and SIRT4. Thus, DPx exerted a protective effect against TAA-induced hepatic fibrosis in the male BALB/C mouse model by inhibiting oxidative stress, inflammation, and apoptosis via TGF-β1/Smads signaling.
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Affiliation(s)
- Amit Kundu
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
- School of Medical Sciences, Örebro University, Örebro, Sweden; Cardiovascular Research Centre (CVRC), School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Sreevarsha Gali
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
| | - Swati Sharma
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
| | - Sam Kacew
- McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, ON, Canada
| | - Sungpil Yoon
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
| | - Hye Gwang Jeong
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-Gu, Daejeon 34134, Republic of Korea
| | - Jong Hwan Kwak
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon 440-746, Republic of Korea
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7
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Amar D, Gay NR, Jimenez-Morales D, Beltran PMJ, Ramaker ME, Raja AN, Zhao B, Sun Y, Marwaha S, Gaul D, Hershman SG, Xia A, Lanza I, Fernandez FM, Montgomery SB, Hevener AL, Ashley EA, Walsh MJ, Sparks LM, Burant CF, Rector RS, Thyfault J, Wheeler MT, Goodpaster BH, Coen PM, Schenk S, Bodine SC, Lindholm ME. The mitochondrial multi-omic response to exercise training across tissues. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.13.523698. [PMID: 36711881 PMCID: PMC9882193 DOI: 10.1101/2023.01.13.523698] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Mitochondria are adaptable organelles with diverse cellular functions critical to whole-body metabolic homeostasis. While chronic endurance exercise training is known to alter mitochondrial activity, these adaptations have not yet been systematically characterized. Here, the Molecular Transducers of Physical Activity Consortium (MoTrPAC) mapped the longitudinal, multi-omic changes in mitochondrial analytes across 19 tissues in male and female rats endurance trained for 1, 2, 4 or 8 weeks. Training elicited substantial changes in the adrenal gland, brown adipose, colon, heart and skeletal muscle, while we detected mild responses in the brain, lung, small intestine and testes. The colon response was characterized by non-linear dynamics that resulted in upregulation of mitochondrial function that was more prominent in females. Brown adipose and adrenal tissues were characterized by substantial downregulation of mitochondrial pathways. Training induced a previously unrecognized robust upregulation of mitochondrial protein abundance and acetylation in the liver, and a concomitant shift in lipid metabolism. The striated muscles demonstrated a highly coordinated response to increase oxidative capacity, with the majority of changes occurring in protein abundance and post-translational modifications. We identified exercise upregulated networks that are downregulated in human type 2 diabetes and liver cirrhosis. In both cases HSD17B10, a central dehydrogenase in multiple metabolic pathways and mitochondrial tRNA maturation, was the main hub. In summary, we provide a multi-omic, cross-tissue atlas of the mitochondrial response to training and identify candidates for prevention of disease-associated mitochondrial dysfunction.
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Affiliation(s)
| | | | | | | | | | | | | | - Yifei Sun
- Icahn School of Medicine at Mount Sinai, New York City, NY
| | | | | | | | - Ashley Xia
- National Institutes of Health, Bethesda, MD
| | | | | | | | | | | | - Martin J Walsh
- Icahn School of Medicine at Mount Sinai, New York City, NY
| | - Lauren M Sparks
- AdventHealth Translational Research Institute for Metabolism and Diabetes, Orlando, FL
| | | | | | - John Thyfault
- University of Kansas Medical Center, Kansas City, KS
| | | | - Bret H. Goodpaster
- AdventHealth Translational Research Institute for Metabolism and Diabetes, Orlando, FL
| | - Paul M. Coen
- AdventHealth Translational Research Institute for Metabolism and Diabetes, Orlando, FL
| | - Simon Schenk
- University of California, San Diego, La Jolla, CA
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8
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Rujimongkon K, Ampawong S, Isarangkul D, Reamtong O, Aramwit P. Sericin-mediated improvement of dysmorphic cardiac mitochondria from hypercholesterolaemia is associated with maintaining mitochondrial dynamics, energy production, and mitochondrial structure. PHARMACEUTICAL BIOLOGY 2022; 60:708-721. [PMID: 35348427 PMCID: PMC8967205 DOI: 10.1080/13880209.2022.2055088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/10/2022] [Accepted: 03/12/2022] [Indexed: 05/30/2023]
Abstract
CONTEXT Sericin is a component protein in the silkworm cocoon [Bombyx mori Linnaeus (Bombycidae)] that improves dysmorphic cardiac mitochondria under hypercholesterolemic conditions. This is the first study to explore cardiac mitochondrial proteins associated with sericin treatment. OBJECTIVE To investigate the mechanism of action of sericin in cardiac mitochondria under hypercholesterolaemia. MATERIALS AND METHODS Hypercholesterolaemia was induced in Wistar rats by feeding them 6% cholesterol-containing chow for 6 weeks. The hypercholesterolemic rats were separated into 2 groups (n = 6 for each): the sericin-treated (1,000 mg/kg daily) and nontreated groups. The treatment conditions were maintained for 4 weeks prior to cardiac mitochondria isolation. The mitochondrial structure was evaluated by immunolabeling electron microscopy, and differential mitochondrial protein expression was determined and quantitated by two-dimensional gel electrophoresis coupled with mass spectrometry. RESULTS A 32.22 ± 2.9% increase in the percent striated area of cardiac muscle was observed in sericin-treated hypercholesterolemic rats compared to the nontreatment group (4.18 ± 1.11%). Alterations in mitochondrial proteins, including upregulation of optic atrophy 1 (OPA1) and reduction of NADH-ubiquinone oxidoreductase 75 kDa subunit (NDUFS1) expression, are correlated with a reduction in mitochondrial apoptosis under sericin treatment. Differential proteomic observation also revealed that sericin may improve mitochondrial energy production by upregulating acetyl-CoA acetyltransferase (ACAT1) and NADH dehydrogenase 1α subcomplex subunit 10 (NDUFA10) expression. DISCUSSION AND CONCLUSIONS Sericin treatment could improve the dysmorphic mitochondrial structure, metabolism, and energy production of cardiac mitochondria under hypercholesterolaemia. These results suggest that sericin may be an alternative treatment molecule that is related to cardiac mitochondrial abnormalities.
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Affiliation(s)
- Kitiya Rujimongkon
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences and Center of Excellence in Bioactive Resources for Innovative Clinical Applications, Chulalongkorn University, Bangkok, Thailand
- Proteomics Research Team, National Omics Center, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Duangnate Isarangkul
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetic, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand, and
| | - Pornanong Aramwit
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences and Center of Excellence in Bioactive Resources for Innovative Clinical Applications, Chulalongkorn University, Bangkok, Thailand
- The Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
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9
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Dhillon RS, Qin Y(A, van Ginkel PR, Fu VX, Vann JM, Lawton AJ, Green CL, Manchado‐Gobatto FB, Gobatto CA, Lamming DW, Prolla TA, Denu JM. SIRT3 deficiency decreases oxidative metabolism capacity but increases lifespan in male mice under caloric restriction. Aging Cell 2022; 21:e13721. [PMID: 36199173 PMCID: PMC9741511 DOI: 10.1111/acel.13721] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 12/14/2022] Open
Abstract
Mitochondrial NAD+ -dependent protein deacetylase Sirtuin3 (SIRT3) has been proposed to mediate calorie restriction (CR)-dependent metabolic regulation and lifespan extension. Here, we investigated the role of SIRT3 in CR-mediated longevity, mitochondrial function, and aerobic fitness. We report that SIRT3 is required for whole-body aerobic capacity but is dispensable for CR-dependent lifespan extension. Under CR, loss of SIRT3 (Sirt3-/- ) yielded a longer overall and maximum lifespan as compared to Sirt3+/+ mice. This unexpected lifespan extension was associated with altered mitochondrial protein acetylation in oxidative metabolic pathways, reduced mitochondrial respiration, and reduced aerobic exercise capacity. Also, Sirt3-/- CR mice exhibit lower spontaneous activity and a trend favoring fatty acid oxidation during the postprandial period. This study shows the uncoupling of lifespan and healthspan parameters (aerobic fitness and spontaneous activity) and provides new insights into SIRT3 function in CR adaptation, fuel utilization, and aging.
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Affiliation(s)
- Rashpal S. Dhillon
- Department of Biomolecular ChemistryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Yiming (Amy) Qin
- Department of Biomolecular ChemistryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Interdepartmental Graduate Program in Nutritional SciencesUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Paul R. van Ginkel
- Department of Genetics and Medical GeneticsUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Vivian X. Fu
- Department of Genetics and Medical GeneticsUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - James M. Vann
- Department of Genetics and Medical GeneticsUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Alexis J. Lawton
- Department of Biomolecular ChemistryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Cara L. Green
- Department of Medicine, SMPHUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,William S. Middleton Memorial Veterans HospitalMadisonWisconsinUSA
| | | | - Claudio A. Gobatto
- Laboratory of Applied Sport Physiology, School of Applied SciencesUniversity of CampinasLimeiraBrazil
| | - Dudley W. Lamming
- Interdepartmental Graduate Program in Nutritional SciencesUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Department of Medicine, SMPHUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,William S. Middleton Memorial Veterans HospitalMadisonWisconsinUSA
| | - Tomas A. Prolla
- Department of Genetics and Medical GeneticsUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - John M. Denu
- Department of Biomolecular ChemistryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Interdepartmental Graduate Program in Nutritional SciencesUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
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10
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Jin L, Geng L, Ying L, Shu L, Ye K, Yang R, Liu Y, Wang Y, Cai Y, Jiang X, Wang Q, Yan X, Liao B, Liu J, Duan F, Sweeney G, Woo CWH, Wang Y, Xia Z, Lian Q, Xu A. FGF21-Sirtuin 3 Axis Confers the Protective Effects of Exercise Against Diabetic Cardiomyopathy by Governing Mitochondrial Integrity. Circulation 2022; 146:1537-1557. [PMID: 36134579 DOI: 10.1161/circulationaha.122.059631] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Exercise is an effective nonpharmacological strategy to alleviate diabetic cardiomyopathy (DCM) through poorly defined mechanisms. FGF21 (fibroblast growth factor 21), a peptide hormone with pleiotropic benefits on cardiometabolic homeostasis, has been identified as an exercise responsive factor. This study aims to investigate whether FGF21 signaling mediates the benefits of exercise on DCM, and if so, to elucidate the underlying mechanisms. METHODS The global or hepatocyte-specific FGF21 knockout mice, cardiomyocyte-selective β-klotho (the obligatory co-receptor for FGF21) knockout mice, and their wild-type littermates were subjected to high-fat diet feeding and injection of streptozotocin to induce DCM, followed by a 6-week exercise intervention and assessment of cardiac functions. Cardiac mitochondrial structure and function were assessed by electron microscopy, enzymatic assays, and measurements of fatty acid oxidation and ATP production. Human induced pluripotent stem cell-derived cardiomyocytes were used to investigate the receptor and postreceptor signaling pathways conferring the protective effects of FGF21 against toxic lipids-induced mitochondrial dysfunction. RESULTS Treadmill exercise markedly induced cardiac expression of β-klotho and significantly attenuated diabetes-induced cardiac dysfunction in wild-type mice, accompanied by reduced mitochondrial damage and increased activities of mitochondrial enzymes in hearts. However, such cardioprotective benefits of exercise were largely abrogated in mice with global or hepatocyte-selective ablation of FGF21, or cardiomyocyte-specific deletion of β-klotho. Mechanistically, exercise enhanced the cardiac actions of FGF21 to induce the expression of the mitochondrial deacetylase SIRT3 by AMPK-evoked phosphorylation of FOXO3, thereby reversing diabetes-induced hyperacetylation and functional impairments of a cluster of mitochondrial enzymes. FGF21 prevented toxic lipids-induced mitochondrial dysfunction and oxidative stress by induction of the AMPK/FOXO3/SIRT3 signaling axis in human induced pluripotent stem cell-derived cardiomyocytes. Adeno-associated virus-mediated restoration of cardiac SIRT3 expression was sufficient to restore the responsiveness of diabetic FGF21 knockout mice to exercise in amelioration of mitochondrial dysfunction and DCM. CONCLUSIONS The FGF21-SIRT3 axis mediates the protective effects of exercise against DCM by preserving mitochondrial integrity and represents a potential therapeutic target for DCM. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT03240978.
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Affiliation(s)
- Leigang Jin
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Leiluo Geng
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Lei Ying
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Lingling Shu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Kevin Ye
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, Canada (K.Y.)
| | - Ranyao Yang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yan Liu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yao Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yin Cai
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Health Technology and Informatics, Hong Kong Polytechnic University, China (Y.C.)
| | - Xue Jiang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Qin Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Xingqun Yan
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Boya Liao
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Jie Liu
- Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Fuyu Duan
- Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Gary Sweeney
- Department of Biology, York University, Toronto, Canada (G.S.)
| | - Connie Wai Hong Woo
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Zhengyuan Xia
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China (Z.X.)
| | - Qizhou Lian
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
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11
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Wang T, Lu Z, Han T, Wang Y, Gan M, Wang JB. Deacetylation of Glutaminase by HDAC4 contributes to Lung Cancer Tumorigenesis. Int J Biol Sci 2022; 18:4452-4465. [PMID: 35864951 PMCID: PMC9295053 DOI: 10.7150/ijbs.69882] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/21/2022] [Indexed: 12/11/2022] Open
Abstract
Inhibiting cancer metabolism via glutaminase (GAC) is a promising strategy to disrupt tumor progression. However, mechanism regarding GAC acetylation remains mostly unknown. In this study, we demonstrate that lysine acetylation is a vital post-translational modification that inhibits GAC activity in non-small cell lung cancer (NSCLC). We identify that Lys311 is the key acetylation site on GAC, which is deacetylated by HDAC4, a class II deacetylase. Lys311 acetylation stimulates the interaction between GAC and TRIM21, an E3 ubiquitin ligase of the tripartite motif (TRIM) family, therefore promoting GAC K63-linked ubiquitination and inhibiting GAC activity. Furthermore, GACK311Q mutation in A549 cells decreases cell proliferation and alleviates tumor malignancy. Our findings reveal a novel mechanism of GAC regulation by acetylation and ubiquitination that participates in non-small cell lung cancer tumorigenesis.
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Affiliation(s)
- Tao Wang
- School of Basic Medical Sciences, Nanchang University, Nanchang, 330031, P. R. China
| | - Zhuo Lu
- School of Life Sciences, Nanchang University, Nanchang, 330031, P.R. China
| | - Tianyu Han
- Jiangxi Institute of Respiratory Disease, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, P.R. China
| | - Yanan Wang
- School of Life Sciences, Nanchang University, Nanchang, 330031, P.R. China
| | - Mingxi Gan
- School of Basic Medical Sciences, Nanchang University, Nanchang, 330031, P. R. China
| | - Jian-Bin Wang
- School of Basic Medical Sciences, Nanchang University, Nanchang, 330031, P. R. China
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12
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Zeng ZL, Yuan Q, Zu X, Liu J. Insights Into the Role of Mitochondria in Vascular Calcification. Front Cardiovasc Med 2022; 9:879752. [PMID: 35571215 PMCID: PMC9099050 DOI: 10.3389/fcvm.2022.879752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 03/14/2022] [Indexed: 12/22/2022] Open
Abstract
Vascular calcification (VC) is a growing burden in aging societies worldwide, and with a significant increase in all-cause mortality and atherosclerotic plaque rupture, it is frequently found in patients with aging, diabetes, atherosclerosis, or chronic kidney disease. However, the mechanism of VC is still not yet fully understood, and there are still no effective therapies for VC. Regarding energy metabolism factories, mitochondria play a crucial role in maintaining vascular physiology. Discoveries in past decades signifying the role of mitochondrial homeostasis in normal physiology and pathological conditions led to tremendous advances in the field of VC. Therapies targeting basic mitochondrial processes, such as energy metabolism, damage in mitochondrial DNA, or free-radical generation, hold great promise. The remarkably unexplored field of the mitochondrial process has the potential to shed light on several VC-related diseases. This review focuses on current knowledge of mitochondrial dysfunction, dynamics anomalies, oxidative stress, and how it may relate to VC onset and progression and discusses the main challenges and prerequisites for their therapeutic applications.
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Affiliation(s)
- ZL Zeng
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Department of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Key Laboratory for Arteriosclerology of Hunan Province, Department of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, China
| | - Qing Yuan
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Department of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xuyu Zu
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Department of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Xuyu Zu
| | - Jianghua Liu
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Department of Clinical Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Jianghua Liu
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13
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Phosphorylation and acetylation of mitochondrial transcription factor A promote transcription processivity without compromising initiation or DNA compaction. J Biol Chem 2022; 298:101815. [PMID: 35278431 PMCID: PMC9006650 DOI: 10.1016/j.jbc.2022.101815] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 11/15/2022] Open
Abstract
Mitochondrial transcription factor A (TFAM) plays important roles in mitochondrial DNA compaction, transcription initiation, and in the regulation of processes like transcription and replication processivity. It is possible that TFAM is locally regulated within the mitochondrial matrix via such mechanisms as phosphorylation by protein kinase A and nonenzymatic acetylation by acetyl-CoA. Here, we demonstrate that DNA-bound TFAM is less susceptible to these modifications. We confirmed using EMSAs that phosphorylated or acetylated TFAM compacted circular double-stranded DNA just as well as unmodified TFAM and provide an in-depth analysis of acetylated sites on TFAM. We show that both modifications of TFAM increase the processivity of mitochondrial RNA polymerase during transcription through TFAM-imposed barriers on DNA, but that TFAM bearing either modification retains its full activity in transcription initiation. We conclude that TFAM phosphorylation by protein kinase A and nonenzymatic acetylation by acetyl-CoA are unlikely to occur at the mitochondrial DNA and that modified free TFAM retains its vital functionalities like compaction and transcription initiation while enhancing transcription processivity.
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14
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Dionne U, Gingras AC. Proximity-Dependent Biotinylation Approaches to Explore the Dynamic Compartmentalized Proteome. Front Mol Biosci 2022; 9:852911. [PMID: 35309513 PMCID: PMC8930824 DOI: 10.3389/fmolb.2022.852911] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/07/2022] [Indexed: 12/12/2022] Open
Abstract
In recent years, proximity-dependent biotinylation approaches, including BioID, APEX, and their derivatives, have been widely used to define the compositions of organelles and other structures in cultured cells and model organisms. The associations between specific proteins and given compartments are regulated by several post-translational modifications (PTMs); however, these effects have not been systematically investigated using proximity proteomics. Here, we discuss the progress made in this field and how proximity-dependent biotinylation strategies could elucidate the contributions of PTMs, such as phosphorylation, to the compartmentalization of proteins.
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Affiliation(s)
- Ugo Dionne
- Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON, Canada
| | - Anne-Claude Gingras
- Lunenfeld-Tanenbaum Research Institute, Sinai Health, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- *Correspondence: Anne-Claude Gingras,
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15
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Marín-Hernández Á, Rodríguez-Zavala JS, Jasso-Chávez R, Saavedra E, Moreno-Sánchez R. Protein acetylation effects on enzyme activity and metabolic pathway fluxes. J Cell Biochem 2021; 123:701-718. [PMID: 34931340 DOI: 10.1002/jcb.30197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/01/2021] [Accepted: 12/06/2021] [Indexed: 11/11/2022]
Abstract
Acetylation of proteins seems a widespread process found in the three domains of life. Several studies have shown that besides histones, acetylation of lysine residues also occurs in non-nuclear proteins. Hence, it has been suggested that this covalent modification is a mechanism that might regulate diverse metabolic pathways by modulating enzyme activity, stability, and/or subcellular localization or interaction with other proteins. However, protein acetylation levels seem to have low correlation with modification of enzyme activity and pathway fluxes. In addition, the results obtained with mutant enzymes that presumably mimic acetylation have frequently been over-interpreted. Moreover, there is a generalized lack of rigorous enzyme kinetic analysis in parallel to acetylation level determinations. The purpose of this review is to analyze the current findings on the impact of acetylation on metabolic enzymes and its repercussion on metabolic pathways function/regulation.
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Affiliation(s)
| | | | - Ricardo Jasso-Chávez
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Mexico City, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Mexico City, Mexico
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16
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Silaghi CN, Farcaș M, Crăciun AM. Sirtuin 3 (SIRT3) Pathways in Age-Related Cardiovascular and Neurodegenerative Diseases. Biomedicines 2021; 9:biomedicines9111574. [PMID: 34829803 PMCID: PMC8615405 DOI: 10.3390/biomedicines9111574] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 01/08/2023] Open
Abstract
Age-associated cardiovascular and neurodegenerative diseases lead to high morbidity and mortality around the world. Sirtuins are vital enzymes for metabolic adaptation and provide protective effects against a wide spectrum of pathologies. Among sirtuins, mitochondrial sirtuin 3 (SIRT3) is an essential player in preserving the habitual metabolic profile. SIRT3 activity declines as a result of aging-induced changes in cellular metabolism, leading to increased susceptibility to endothelial dysfunction, hypertension, heart failure and neurodegenerative diseases. Stimulating SIRT3 activity via lifestyle, pharmacological or genetic interventions could protect against a plethora of pathologies and could improve health and lifespan. Thus, understanding how SIRT3 operates and how its protective effects could be amplified, will aid in treating age-associated diseases and ultimately, in enhancing the quality of life in elders.
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17
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Rodríguez-Enríquez S, Robledo-Cadena DX, Gallardo-Pérez JC, Pacheco-Velázquez SC, Vázquez C, Saavedra E, Vargas-Navarro JL, Blanco-Carpintero BA, Marín-Hernández Á, Jasso-Chávez R, Encalada R, Ruiz-Godoy L, Aguilar-Ponce JL, Moreno-Sánchez R. Acetate Promotes a Differential Energy Metabolic Response in Human HCT 116 and COLO 205 Colon Cancer Cells Impacting Cancer Cell Growth and Invasiveness. Front Oncol 2021; 11:697408. [PMID: 34414111 PMCID: PMC8370060 DOI: 10.3389/fonc.2021.697408] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/15/2021] [Indexed: 12/26/2022] Open
Abstract
Under dysbiosis, a gut metabolic disorder, short-chain carboxylic acids (SCCAs) are secreted to the lumen, affecting colorectal cancer (CRC) development. Butyrate and propionate act as CRC growth inhibitors, but they might also serve as carbon source. In turn, the roles of acetate as metabolic fuel and protein acetylation promoter have not been clearly elucidated. To assess whether acetate favors CRC growth through active mitochondrial catabolism, a systematic study evaluating acetate thiokinase (AcK), energy metabolism, cell proliferation, and invasiveness was performed in two CRC cell lines incubated with physiological SCCAs concentrations. In COLO 205, acetate (+glucose) increased the cell density (50%), mitochondrial protein content (3–10 times), 2-OGDH acetylation, and oxidative phosphorylation (OxPhos) flux (36%), whereas glycolysis remained unchanged vs. glucose-cultured cells; the acetate-induced OxPhos activation correlated with a high AcK activity, content, and acetylation (1.5–6-fold). In contrast, acetate showed no effect on HCT116 cell growth, OxPhos, AcK activity, protein content, and acetylation. However, a substantial increment in the HIF-1α content, HIF-1α-glycolytic protein targets (1–2.3 times), and glycolytic flux (64%) was observed. Butyrate and propionate decreased the growth of both CRC cells by impairing OxPhos flux through mitophagy and mitochondrial fragmentation activation. It is described, for the first time, the role of acetate as metabolic fuel for ATP supply in CRC COLO 205 cells to sustain proliferation, aside from its well-known role as protein epigenetic regulator. The level of AcK determined in COLO 205 cells was similar to that found in human CRC biopsies, showing its potential role as metabolic marker.
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Affiliation(s)
| | | | | | | | - Citlali Vázquez
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México, Mexico
| | | | | | | | | | - Rusely Encalada
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México, Mexico
| | - Luz Ruiz-Godoy
- Banco de Tumores, Instituto Nacional de Cancerología, México, Mexico
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18
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mTORC1 activity regulates post-translational modifications of glycine decarboxylase to modulate glycine metabolism and tumorigenesis. Nat Commun 2021; 12:4227. [PMID: 34244482 PMCID: PMC8270999 DOI: 10.1038/s41467-021-24321-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 06/09/2021] [Indexed: 11/08/2022] Open
Abstract
Glycine decarboxylase (GLDC) is a key enzyme of glycine cleavage system that converts glycine into one-carbon units. GLDC is commonly up-regulated and plays important roles in many human cancers. Whether and how GLDC is regulated by post-translational modifications is unknown. Here we report that mechanistic target of rapamycin complex 1 (mTORC1) signal inhibits GLDC acetylation at lysine (K) 514 by inducing transcription of the deacetylase sirtuin 3 (SIRT3). Upon inhibition of mTORC1, the acetyltransferase acetyl-CoA acetyltransferase 1 (ACAT1) catalyzes GLDC K514 acetylation. This acetylation of GLDC impairs its enzymatic activity. In addition, this acetylation of GLDC primes for its K33-linked polyubiquitination at K544 by the ubiquitin ligase NF-X1, leading to its degradation by the proteasomal pathway. Finally, we find that GLDC K514 acetylation inhibits glycine catabolism, pyrimidines synthesis and glioma tumorigenesis. Our finding reveals critical roles of post-translational modifications of GLDC in regulation of its enzymatic activity, glycine metabolism and tumorigenesis, and provides potential targets for therapeutics of cancers such as glioma.
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19
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Gu H, Yang K, Wu Q, Shen Z, Li X, Sun C. A link between protein acetylation and mitochondrial dynamics under energy metabolism: A comprehensive overview. J Cell Physiol 2021; 236:7926-7937. [PMID: 34101176 DOI: 10.1002/jcp.30461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 12/16/2022]
Abstract
Cells adjust mitochondrial morphologies to coordinate between the cellular demand for energy and the availability of resources. Mitochondrial morphology is regulated by the balance between two counteracting mitochondrial processes of fusion and fission. Fission and fusion are dynamic and reversible processes that depend on the coordination of a number of proteins and are primarily regulated by posttranslational modifications. In the mitochondria, more than 20% of proteins are acetylated in proteomic surveys, partly involved in the dynamic regulation of mitochondrial fusion and fission. This article focuses on the molecular mechanism of the mitochondrial dynamics of fusion and fission, and summarizes the related mechanisms and targets of mitochondrial protein acetylation to regulate the mitochondrial dynamics of fusion and fission in energy metabolism.
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Affiliation(s)
- Huihui Gu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Kun Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qiong Wu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China.,Department of Pathophysiology, Qinghai University Medical College, Xining, Qinghai, China
| | - Zhentong Shen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinjian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Chao Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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20
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Li P, Chen C, Li P, Dong Y. A comprehensive examination of the lysine acetylation targets in paper mulberry based on proteomics analyses. PLoS One 2021; 16:e0240947. [PMID: 33705403 PMCID: PMC7951917 DOI: 10.1371/journal.pone.0240947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 02/12/2021] [Indexed: 11/19/2022] Open
Abstract
Rocky desertification is a bottleneck that reduces ecological and environmental security in karst areas. Paper mulberry, a unique deciduous tree, shows good performance in rocky desertification areas. Its resistance mechanisms are therefore of high interest. In this study, a lysine acetylation proteomics analysis of paper mulberry seedling leaves was conducted in combination with the purification of acetylated protein by high-precision nano LC-MS/MS. We identified a total of 7130 acetylation sites in 3179 proteins. Analysis of the modified sites showed a predominance of nine motifs. Six positively charged residues: lysine (K), arginine (R), and histidine (H), serine (S), threonine (T), and tyrosine (Y) occurred most frequently at the +1 position, phenylalanine (F) was both detected both upstream and downstream of the acetylated lysines; and the sequence logos showed a strong preference for lysine and arginine around acetylated lysines. Functional annotation revealed that the identified enzymes were mainly involved in translation, transcription, ribosomal structure and biological processes, showing that lysine acetylation can regulate various aspects of primary carbon and nitrogen metabolism and secondary metabolism. Acetylated proteins were enriched in the chloroplast, cytoplasm, and nucleus, and many stress response-related proteins were also discovered to be acetylated, including PAL, HSP70, and ERF. HSP70, an important protein involved in plant abiotic and disease stress responses, was identified in paper mulberry, although it is rarely found in woody plants. This may be further examined in research in other plants and could explain the good adaptation of paper mulberry to the karst environment. However, these hypotheses require further verification. Our data can provide a new starting point for the further analysis of the acetylation function in paper mulberry and other plants.
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Affiliation(s)
- Ping Li
- College of Animal Science, Guizhou university, Guiyang, Guizhou, China
| | - Chao Chen
- College of Animal Science, Guizhou university, Guiyang, Guizhou, China
| | - Ping Li
- Institute of Grassland Research, Sichuan Academy of Grassland Science, Cheng Du, Si Chuan, China
| | - Yibo Dong
- College of Animal Science, Guizhou university, Guiyang, Guizhou, China
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21
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Quantification and Identification of Post-Translational Modifications Using Modern Proteomics Approaches. Methods Mol Biol 2021; 2228:225-235. [PMID: 33950494 PMCID: PMC8710235 DOI: 10.1007/978-1-0716-1024-4_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Post-translational modifications (PTMs) occur dynamically, allowing cells to quickly respond to changes in the environment. Lysine residues can be targeted by several modifications including acylations (acetylation, succinylation, malonylation, glutarylation, and others), methylation, ubiquitination, and other modifications. One of the most efficient methods for the identification of post-translational modifications is utilizing immunoaffinity enrichment followed by high-resolution mass spectrometry. This workflow can be coupled with comprehensive data-independent acquisition (DIA) mass spectrometry to be a high-throughput, label-free PTM quantification approach. Below we describe a detailed protocol to process tissue by homogenization and proteolytically digest proteins, followed by immunoaffinity enrichment of lysine-acetylated peptides to identify and quantify relative changes of acetylation comparing different conditions.
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22
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Min Z, Long X, Zhao H, Zhen X, Li R, Li M, Fan Y, Yu Y, Zhao Y, Qiao J. Protein Lysine Acetylation in Ovarian Granulosa Cells Affects Metabolic Homeostasis and Clinical Presentations of Women With Polycystic Ovary Syndrome. Front Cell Dev Biol 2020; 8:567028. [PMID: 33043000 PMCID: PMC7518144 DOI: 10.3389/fcell.2020.567028] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/13/2020] [Indexed: 12/11/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common reproductive endocrine disorders accompanied by obvious metabolic abnormalities. Lower-quality oocytes and embryos are often found in PCOS women during assisted reproductive technology treatment. However, there is still no clarity about the mechanism of ovarian metabolic disorders and the impact on oocyte maturation in PCOS. The aim of this study was to understand the potential effect of the posttranslational modification on ovarian metabolic homeostasis and oocyte development potential in women with PCOS. A quantitative analysis of acetylated proteomics in ovarian granulosa cells of PCOS and control groups was carried out by mass spectrometry. There was widespread lysine acetylation of proteins, of which 265 proteins had increased levels of acetylation and 68 proteins had decreased levels of acetylation in the PCOS group. Most notably, differentially acetylated proteins were significantly enriched in the metabolic pathways of glycolysis, fatty acid degradation, TCA cycle, tryptophan metabolism, and branched-chain amino acid degradation. Acetyl-CoA acetyltransferase 1 (ACAT1) was an enzyme central to these metabolic pathways with increased acetylation level in the PCOS group, and there was a negative correlation of ACAT1 acetylation levels in PCOS granulosa cells with oocyte quality and embryo development efficiency in the clinic. Lysine acetylation changes of key enzymes in PCOS granulosa cells might attenuate their activities and alter metabolic homeostasis of follicular microenvironment for oocyte maturation and embryo development.
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Affiliation(s)
- Zheying Min
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Xiaoyu Long
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Hongcui Zhao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Xiumei Zhen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Rong Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Mo Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Yong Fan
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yang Yu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
| | - Yue Zhao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China.,Research Units of Comprehensive Diagnosis and Treatment of Oocyte Maturation Arrest, Chinese Academy of Medical Sciences, Beijing, China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University, Beijing, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China.,Research Units of Comprehensive Diagnosis and Treatment of Oocyte Maturation Arrest, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Advanced Innovation Center for Genomics, Beijing, China
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23
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Wang S, Zhang J, Deng X, Zhao Y, Xu K. Advances in characterization of SIRT3 deacetylation targets in mitochondrial function. Biochimie 2020; 179:1-13. [PMID: 32898647 DOI: 10.1016/j.biochi.2020.08.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/30/2020] [Accepted: 08/26/2020] [Indexed: 12/18/2022]
Abstract
The homeostasis of mitochondrial functional state is intimately in relation with SIRT3 (sirtuin3). SIRT3, the deacetylase mainly anchored in mitochondria, acts as a modulator of metabolic regulation via manipulating the activity and function of downstream targets at post-translational modification levels. The features of energy sensing and ADP-ribose transference of SIRT3 have also been reported. Recently, accumulating SIRT3-focusing evidences have suggested its complicated role in a series of adverse events such as metabolic disorders, aging-related diseases, coupled with tumors, in which SIRT3 regulates the progress of corresponding biochemical reactions by targeting key mediators. By systematically summarizing the downstream deacetylated proteins of the SIRT3 axis, this review aims to give a comprehensive introduction to the main metabolic pathways and diseases of the molecules involved in acetylation modification, which is expected to provide a direction for further exploration of the pathogenesis and therapeutic targets of the above diseases.
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Affiliation(s)
- Shuhan Wang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Junli Zhang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaoling Deng
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yajuan Zhao
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Keshu Xu
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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24
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Mereweather LJ, Montes Aparicio CN, Heather LC. Positioning Metabolism as a Central Player in the Diabetic Heart. J Lipid Atheroscler 2020; 9:92-109. [PMID: 32821724 PMCID: PMC7379068 DOI: 10.12997/jla.2020.9.1.92] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/28/2019] [Accepted: 12/29/2019] [Indexed: 12/13/2022] Open
Abstract
In type 2 diabetes (T2D), the leading cause of death is cardiovascular complications. One mechanism contributing to cardiac pathogenesis is alterations in metabolism, with the diabetic heart exhibiting increased fatty acid oxidation and reduced glucose utilisation. The processes classically thought to underlie this metabolic shift include the Randle cycle and changes to gene expression. More recently, alternative mechanisms have been proposed, most notably, changes in post-translational modification of mitochondrial proteins in the heart. This increased understanding of how metabolism is altered in the diabetic heart has highlighted new therapeutic targets, with an aim to improve cardiac function in T2D. This review focuses on metabolism in the healthy heart and how this is modified in T2D, providing evidence for the mechanisms underlying this shift. There will be emphasis on the current treatments for the heart in diabetes, alongside efforts for metabocentric pharmacological therapies.
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Affiliation(s)
- Laura J Mereweather
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | | | - Lisa C Heather
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
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25
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Peterson BS, Campbell JE, Ilkayeva O, Grimsrud PA, Hirschey MD, Newgard CB. Remodeling of the Acetylproteome by SIRT3 Manipulation Fails to Affect Insulin Secretion or β Cell Metabolism in the Absence of Overnutrition. Cell Rep 2019; 24:209-223.e6. [PMID: 29972782 PMCID: PMC6093627 DOI: 10.1016/j.celrep.2018.05.088] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/10/2018] [Accepted: 05/25/2018] [Indexed: 12/19/2022] Open
Abstract
SIRT3 is a nicotinamide adenine dinucleotide (NAD+)- dependent mitochondrial protein deacetylase purported to influence metabolism through post-translational modification of metabolic enzymes. Fuel-stimulated insulin secretion, which involves mitochondrial metabolism, could be susceptible to SIRT3-mediated effects. We used CRISPR/Cas9 technology to manipulate SIRT3 expression in β cells, resulting in widespread SIRT3-dependent changes in acetylation of key metabolic enzymes but no appreciable changes in glucose- or pyruvate-stimulated insulin secretion or metabolomic profile during glucose stimulation. Moreover, these broad changes in the SIRT3-targeted acetylproteome did not affect responses to nutritional or ER stress. We also studied mice with global SIRT3 knockout fed either standard chow (STD) or high-fat and high-sucrose (HFHS) diets. Only when chronically fed HFHS diet do SIRT3 KO animals exhibit a modest reduction in insulin secretion. We conclude that broad changes in mitochondrial protein acetylation in response to manipulation of SIRT3 are not sufficient to cause changes in islet function or metabolism. Peterson et al. report that ablation of SIRT3 in 832/13 β cells dramatically alters the mitochondrial acetylproteome but does not affect insulin secretion, metabolomic profile, or β cell survival. Moreover, SIRT3 knockout causes a modest reduction in insulin secretion in mice fed a high-fat and high-sucrose but not a standard chow diet.
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Affiliation(s)
- Brett S Peterson
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Jonathan E Campbell
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA
| | - Olga Ilkayeva
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Paul A Grimsrud
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Matthew D Hirschey
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA
| | - Christopher B Newgard
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA.
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26
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Defining decreased protein succinylation of failing human cardiac myofibrils in ischemic cardiomyopathy. J Mol Cell Cardiol 2019; 138:304-317. [PMID: 31836543 DOI: 10.1016/j.yjmcc.2019.11.159] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/23/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022]
Abstract
Succinylation is a post-translational modification of protein lysine residues with succinyl groups derived from succinyl CoA. Succinylation is considered a significant post-translational modification with the potential to impact protein function which is highly conserved across numerous species. The role of succinylation in the heart, especially in heart failure and myofibril mechanics, remains largely unexplored. Mechanical parameters were measured in myofibrils isolated from failing hearts of ischemic cardiomyopathy patients and non-failing donor controls. We employed mass spectrometry to quantify differential protein expression in myofibrils from failing ischemic cardiomyopathy hearts compared to non-failing hearts. In addition, we combined peptide enrichment by immunoprecipitation with liquid chromatography tandem mass spectrometry to quantitatively analyze succinylated lysine residues in these myofibrils. Several key parameters of sarcomeric mechanical interactions were altered in myofibrils isolated from failing ischemic cardiomyopathy hearts, including lower resting tension and a faster rate of activation. Of the 100 differentially expressed proteins, 46 showed increased expression in ischemic heart failure, while 54 demonstrated decreased expression in ischemic heart failure. Our quantitative succinylome analysis identified a total of 572 unique succinylated lysine sites located on 181 proteins, with 307 significantly changed succinylation events. We found that 297 succinyl-Lys demonstrated decreased succinylation on 104 proteins, while 10 residues demonstrated increased succinylation on 4 proteins. Investigating succinyl CoA generation, enzyme activity assays demonstrated that α-ketoglutarate dehydrogenase and succinate dehydrogenase activities were significantly decreased in ischemic heart failure. An activity assay for succinyl CoA synthetase demonstrated a significant increase in ischemic heart failure. Taken together, our findings support the hypothesis that succinyl CoA production is decreased and succinyl CoA turnover is increased in ischemic heart failure, potentially resulting in an overall decrease in the mitochondrial succinyl CoA pool, which may contribute to decreased myofibril protein succinylation in heart failure.
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27
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van Pijkeren A, Bischoff R, Kwiatkowski M. Mass spectrometric analysis of PTM dynamics using stable isotope labeled metabolic precursors in cell culture. Analyst 2019; 144:6812-6833. [PMID: 31650141 DOI: 10.1039/c9an01258c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biological organisms represent highly dynamic systems, which are continually exposed to environmental factors and always strive to restore steady-state homeostasis. Posttranslational modifications are key regulators with which biological systems respond to external stimuli. To understand how homeostasis is restored, it is important to study the kinetics of posttranslational modifications. In this review we discuss proteomic approaches using stable isotope labeled metabolic precursors to study dynamics of posttranslational modifications in cell culture.
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Affiliation(s)
- Alienke van Pijkeren
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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28
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Mitochondria Lysine Acetylation and Phenotypic Control. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1158:59-70. [PMID: 31452135 DOI: 10.1007/978-981-13-8367-0_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mitochondria have a central role in cellular metabolism and reversible post-translational modifications regulate activity of mitochondrial proteins. Thanks to advances in proteomics, lysine acetylation has arisen as an important post-translational modification in the mitochondrion. During acetylation an acetyl group is covalently attached to the epsilon amino group in the side chain of lysine residues using acetyl-CoA as the substrate donor. Therefore the positive charge is neutralized, and this can affect the function of proteins thereby regulating enzyme activity, protein interactions, and protein stability. The major deacetylase in mitochondria is SIRT3 whose activity regulates many mitochondrial enzymes. The method of choice for the analysis of acetylated proteins foresees the combination of mass spectrometry-based proteomics with affinity enrichment techniques. Beyond the identification of lysine-acetylated proteins, many studies are moving towards the characterization of acetylated patterns in different diseases. Indeed, modifications in lysine acetylation status can directly alter mitochondrial function and, therefore, be linked to human diseases such as metabolic diseases, cancer, myocardial injury and neurodegenerative diseases. Despite the progress in the characterization of different lysine acetylation sites, additional studies are needed to differentiate the specific changes with a significant biological relevance.
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29
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Abstract
Non-enzymatic modification of proteins by acyl-CoA species involved in intermediary metabolism is a possible explanation for widespread protein acylation. In this issue, Kulkarni et al. (2017) develop a set of chemoproteomic probes to interrogate the role of malonyl-CoA in mediating protein malonylation and find malonylation influences glycolysis in cancer cells.
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Affiliation(s)
- Gregory R Wagner
- Duke Molecular Physiology Institute and the Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Durham, NC 27710, USA
| | - Matthew D Hirschey
- Duke Molecular Physiology Institute and the Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Durham, NC 27710, USA; Department of Pharmacology & Cancer Biology and Duke University Medical Center, Durham, NC 27710, USA.
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30
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Ringel AE, Tucker SA, Haigis MC. Chemical and Physiological Features of Mitochondrial Acylation. Mol Cell 2019; 72:610-624. [PMID: 30444998 DOI: 10.1016/j.molcel.2018.10.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/15/2018] [Accepted: 10/15/2018] [Indexed: 01/09/2023]
Abstract
Growing appreciation of the diversity of post-translational modifications (PTMs) in the mitochondria necessitates reevaluation of the roles these modifications play in both health and disease. Compared to the cytosol and nucleus, the mitochondrial proteome is highly acylated, and remodeling of the mitochondrial "acylome" is a key adaptive mechanism that regulates fundamental aspects of mitochondrial biology. It is clear that we need to understand the underlying chemistry that regulates mitochondrial acylation, as well as how chemical properties of the acyl chain impact biological functions. Here, we dissect the sources of PTMs in the mitochondria, review major mitochondrial pathways that control levels of PTMs, and highlight how sirtuin enzymes respond to the bioenergetic state of the cell via NAD+ availability to regulate mitochondrial biology. By providing a framework connecting the chemistry of these modifications, their biochemical consequences, and the pathways that regulate the levels of acyl PTMs, we will gain a deeper understanding of the physiological significance of mitochondrial acylation and its role in mitochondrial adaptation.
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Affiliation(s)
- Alison E Ringel
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Ludwig Center for Cancer Research at Harvard, Boston, MA 02115, USA
| | - Sarah A Tucker
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Ludwig Center for Cancer Research at Harvard, Boston, MA 02115, USA
| | - Marcia C Haigis
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Ludwig Center for Cancer Research at Harvard, Boston, MA 02115, USA.
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31
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Fix DK, VanderVeen BN, Counts BR, Carson JA. Regulation of Skeletal Muscle DRP-1 and FIS-1 Protein Expression by IL-6 Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8908457. [PMID: 30918582 PMCID: PMC6408992 DOI: 10.1155/2019/8908457] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/13/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022]
Abstract
IL-6 signals through the ubiquitously expressed glycoprotein 130 (gp130) transmembrane protein to activate intracellular signaling that includes signal transducer and activator of transcription 3 (STAT3) and extracellular signal-regulated kinase 1/2 (ERK1/2). Dynamin-1-like protein (DRP-1) and mitochondrial fission 1 protein (FIS-1) are key proteins in the process of mitochondrial fission and have emerged as IL-6-sensitive targets. The purpose of this study was to examine the regulation of DRP-1 and FIS-1 expression by IL-6 and gp130 signaling in myotubes and skeletal muscle. Fully differentiated C2C12 myotubes were treated with 100 ng of IL-6 for 24 hours in the presence of gp130siRNA, C188-9 (STAT3 inhibitor), or PD98059 (ERK1/2 inhibitor). Male C57BL/6 (B6) and muscle-specific gp130 knockout mice (KO) had IL-6 systemically overexpressed for 2 weeks by transient transfection with 50 ng of an IL-6-expressing or control plasmid in the quadriceps muscles, and the tibialis anterior muscle was analyzed to determine systemic effects of IL-6. IL-6 induced DRP-1 and FIS-1 expression in myotubes 124% and 82% (p = .001) and in skeletal muscle 97% and 187% (p = .001). Myotube gp130 knockdown suppressed the IL-6 induction of DRP-1 68% (p = .002) and FIS-1 65% (p = .001). Muscle KO suppressed the IL-6 induction of DRP-1 220% (p = .001) and FIS-1 121% (p = .001). ERK1/2 inhibition suppressed the IL-6 induction of DRP-1 59% (p = .0003) and FIS-1 102% (p = .0001) in myotubes, while there was no effect of STAT3 inhibition. We report that chronically elevated IL-6 can directly induce DRP-1 and FIS-1 expression through gp130 signaling in cultured myotubes and skeletal muscle. Furthermore, ERK 1/2 signaling is necessary for the IL-6 induction of DRP-1 and FIS-1 expression in myotubes.
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Affiliation(s)
- Dennis K. Fix
- Integrative Muscle Biology Laboratory, Division of Applied Physiology, Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - Brandon N. VanderVeen
- Integrative Muscle Biology Laboratory, Division of Applied Physiology, Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - Brittany R. Counts
- Integrative Muscle Biology Laboratory, Division of Applied Physiology, Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - James A. Carson
- College of Health Professions, Department of Physical Therapy, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
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Fisher-Wellman KH, Draper JA, Davidson MT, Williams AS, Narowski TM, Slentz DH, Ilkayeva OR, Stevens RD, Wagner GR, Najjar R, Hirschey MD, Thompson JW, Olson DP, Kelly DP, Koves TR, Grimsrud PA, Muoio DM. Respiratory Phenomics across Multiple Models of Protein Hyperacylation in Cardiac Mitochondria Reveals a Marginal Impact on Bioenergetics. Cell Rep 2019; 26:1557-1572.e8. [PMID: 30726738 PMCID: PMC6478502 DOI: 10.1016/j.celrep.2019.01.057] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/02/2018] [Accepted: 01/15/2019] [Indexed: 11/25/2022] Open
Abstract
Acyl CoA metabolites derived from the catabolism of carbon fuels can react with lysine residues of mitochondrial proteins, giving rise to a large family of post-translational modifications (PTMs). Mass spectrometry-based detection of thousands of acyl-PTMs scattered throughout the proteome has established a strong link between mitochondrial hyperacylation and cardiometabolic diseases; however, the functional consequences of these modifications remain uncertain. Here, we use a comprehensive respiratory diagnostics platform to evaluate three disparate models of mitochondrial hyperacylation in the mouse heart caused by genetic deletion of malonyl CoA decarboxylase (MCD), SIRT5 demalonylase and desuccinylase, or SIRT3 deacetylase. In each case, elevated acylation is accompanied by marginal respiratory phenotypes. Of the >60 mitochondrial energy fluxes evaluated, the only outcome consistently observed across models is a ∼15% decrease in ATP synthase activity. In sum, the findings suggest that the vast majority of mitochondrial acyl PTMs occur as stochastic events that minimally affect mitochondrial bioenergetics.
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Affiliation(s)
- Kelsey H Fisher-Wellman
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - James A Draper
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Michael T Davidson
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Ashley S Williams
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Tara M Narowski
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Dorothy H Slentz
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Olga R Ilkayeva
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Robert D Stevens
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Gregory R Wagner
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Rami Najjar
- Cell Signaling Technologies, Danvers, MA 01923, USA
| | - Mathew D Hirschey
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA
| | - J Will Thompson
- Duke Proteomics and Metabolomics Shared Resource, Duke University Medical Center, Durham, NC 27710, USA
| | - David P Olson
- Department of Pediatrics, Division of Pediatric Endocrinology, Michigan Medicine, Ann Arbor, MI 48109, USA
| | - Daniel P Kelly
- Perelman School of Medicine, University of Pennsylvania, PA 19104, USA
| | - Timothy R Koves
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA
| | - Paul A Grimsrud
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA.
| | - Deborah M Muoio
- Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27701, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA.
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Ali HR, Assiri MA, Harris PS, Michel CR, Yun Y, Marentette JO, Huynh FK, Orlicky DJ, Shearn CT, Saba LM, Reisdorph R, Reisdorph N, Hirschey MD, Fritz KS. Quantifying Competition among Mitochondrial Protein Acylation Events Induced by Ethanol Metabolism. J Proteome Res 2019; 18:1513-1531. [PMID: 30644754 DOI: 10.1021/acs.jproteome.8b00800] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mitochondrial dysfunction is one of many key factors in the etiology of alcoholic liver disease (ALD). Lysine acetylation is known to regulate numerous mitochondrial metabolic pathways, and recent reports demonstrate that alcohol-induced protein acylation negatively impacts these processes. To identify regulatory mechanisms attributed to alcohol-induced protein post-translational modifications, we employed a model of alcohol consumption within the context of wild type (WT), sirtuin 3 knockout (SIRT3 KO), and sirtuin 5 knockout (SIRT5 KO) mice to manipulate hepatic mitochondrial protein acylation. Mitochondrial fractions were examined by label-free quantitative HPLC-MS/MS to reveal competition between lysine acetylation and succinylation. A class of proteins defined as "differential acyl switching proteins" demonstrate select sensitivity to alcohol-induced protein acylation. A number of these proteins reveal saturated lysine-site occupancy, suggesting a significant level of differential stoichiometry in the setting of ethanol consumption. We hypothesize that ethanol downregulates numerous mitochondrial metabolic pathways through differential acyl switching proteins. Data are available via ProteomeXchange with identifier PXD012089.
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Affiliation(s)
- Hadi R Ali
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Mohammed A Assiri
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Peter S Harris
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Cole R Michel
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Youngho Yun
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - John O Marentette
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Frank K Huynh
- Department of Biological Sciences , San Jose State University , San Jose , California 95192 , United States
| | - David J Orlicky
- Department of Pathology, School of Medicine , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Colin T Shearn
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Laura M Saba
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Richard Reisdorph
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Nichole Reisdorph
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
| | - Matthew D Hirschey
- Department of Medicine, Division of Endocrinology, Metabolism, and Nutrition, Department of Pharmacology and Cancer Biology , Duke University Medical Center , Durham , North Carolina 27710 , United States
| | - Kristofer S Fritz
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of Colorado Anschutz Medical Campus , Aurora , Colorado 80045 , United States
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Abstract
Posttranslational modifications of proteins control many complex biological processes, including genome expression, chromatin dynamics, metabolism, and cell division through a language of chemical modifications. Improvements in mass spectrometry-based proteomics have demonstrated protein acetylation is a widespread and dynamic modification in the cell; however, many questions remain on the regulation and downstream effects, and an assessment of the overall acetylation stoichiometry is needed. In this chapter, we describe the determination of acetylation stoichiometry using data-independent acquisition mass spectrometry to expand the number of acetylation sites quantified. However, the increased depth of data-independent acquisition is limited by the spectral library used to deconvolute fragmentation spectra. We describe a powerful approach of subcellular fractionation in conjunction with offline prefractionation to increase the depth of the spectral library. This deep interrogation of subcellular compartments provides essential insights into the compartment-specific regulation and downstream functions of protein acetylation.
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Diallo I, Seve M, Cunin V, Minassian F, Poisson JF, Michelland S, Bourgoin-Voillard S. Current trends in protein acetylation analysis. Expert Rev Proteomics 2018; 16:139-159. [PMID: 30580641 DOI: 10.1080/14789450.2019.1559061] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Acetylation is a widely occurring post-translational modification (PTM) of proteins that plays a crucial role in many cellular physiological and pathological processes. Over the last decade, acetylation analyses required the development of multiple methods to target individual acetylated proteins, as well as to cover a broader description of acetylated proteins that comprise the acetylome. Areas covered: This review discusses the different types of acetylation (N-ter/K-/O-acetylation) and then describes some major strategies that have been reported in the literature to detect, enrich, identify and quantify protein acetylation. The review highlights the advantages and limitations of these strategies, to guide researchers in designing their experimental investigations and analysis of protein acetylation. Finally, this review highlights the main applications of acetylomics (proteomics based on mass spectrometry) for understanding physiological and pathological conditions. Expert opinion: Recent advances in acetylomics have enhanced knowledge of the biological and pathological roles of protein acetylation and the acetylome. Besides, radiolabeling and western blotting remain also techniques-of-choice for targeted protein acetylation. Future challenges in acetylomics to analyze the N-ter and K-acetylome will most likely require enrichment/fractionation, MS instrumentation and bioinformatics. Challenges also remain to identify the potential biological roles of O-acetylation and cross-talk with other PTMs.
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Affiliation(s)
- Issa Diallo
- a Universite Grenoble Alpes - LBFA and BEeSy, PROMETHEE, Proteomic Platform , Saint-Martin-d'Heres , France.,b Inserm, U1055, PROMETHEE Proteomic Platform , Saint-Martin-d'Heres , France.,c CHU de Grenoble, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform , La Tronche , France
| | - Michel Seve
- a Universite Grenoble Alpes - LBFA and BEeSy, PROMETHEE, Proteomic Platform , Saint-Martin-d'Heres , France.,b Inserm, U1055, PROMETHEE Proteomic Platform , Saint-Martin-d'Heres , France.,c CHU de Grenoble, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform , La Tronche , France
| | - Valérie Cunin
- a Universite Grenoble Alpes - LBFA and BEeSy, PROMETHEE, Proteomic Platform , Saint-Martin-d'Heres , France.,b Inserm, U1055, PROMETHEE Proteomic Platform , Saint-Martin-d'Heres , France.,c CHU de Grenoble, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform , La Tronche , France
| | | | | | - Sylvie Michelland
- a Universite Grenoble Alpes - LBFA and BEeSy, PROMETHEE, Proteomic Platform , Saint-Martin-d'Heres , France.,b Inserm, U1055, PROMETHEE Proteomic Platform , Saint-Martin-d'Heres , France.,c CHU de Grenoble, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform , La Tronche , France
| | - Sandrine Bourgoin-Voillard
- a Universite Grenoble Alpes - LBFA and BEeSy, PROMETHEE, Proteomic Platform , Saint-Martin-d'Heres , France.,b Inserm, U1055, PROMETHEE Proteomic Platform , Saint-Martin-d'Heres , France.,c CHU de Grenoble, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform , La Tronche , France
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Lantier L, Williams AS, Hughey CC, Bracy DP, James FD, Ansari MA, Gius D, Wasserman DH. SIRT2 knockout exacerbates insulin resistance in high fat-fed mice. PLoS One 2018; 13:e0208634. [PMID: 30533032 PMCID: PMC6289500 DOI: 10.1371/journal.pone.0208634] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/20/2018] [Indexed: 01/26/2023] Open
Abstract
The NAD+-dependent deacetylase SIRT2 is unique amongst sirtuins as it is effective in the cytosol, as well as the mitochondria. Defining the role of cytosolic acetylation state in specific tissues is difficult since even physiological effects at the whole body level are unknown. We hypothesized that genetic SIRT2 knockout (KO) would lead to impaired insulin action, and that this impairment would be worsened in HF fed mice. Insulin sensitivity was tested using the hyperinsulinemic-euglycemic clamp in SIRT2 KO mice and WT littermates. SIRT2 KO mice exhibited reduced skeletal muscle insulin-induced glucose uptake compared to lean WT mice, and this impairment was exacerbated in HF SIRT2 KO mice. Liver insulin sensitivity was unaffected in lean SIRT2 KO mice. However, the insulin resistance that accompanies HF-feeding was worsened in SIRT2 KO mice. It was notable that the effects of SIRT2 KO were largely disassociated from cytosolic acetylation state, but were closely linked to acetylation state in the mitochondria. SIRT2 KO led to an increase in body weight that was due to increased food intake in HF fed mice. In summary, SIRT2 deletion in vivo reduces muscle insulin sensitivity and contributes to liver insulin resistance by a mechanism that is unrelated to cytosolic acetylation state. Mitochondrial acetylation state and changes in feeding behavior that result in increased body weight correspond to the deleterious effects of SIRT2 KO on insulin action.
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Affiliation(s)
- Louise Lantier
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
- Vanderbilt Mouse Metabolic Phenotyping Center, Nashville, TN, United States of America
| | - Ashley S. Williams
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
| | - Curtis C. Hughey
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
| | - Deanna P. Bracy
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
| | - Freyja D. James
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
| | - Muhammad A. Ansari
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
| | - David Gius
- Department of Radiation Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
| | - David H. Wasserman
- Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville TN, United States of America
- Vanderbilt Mouse Metabolic Phenotyping Center, Nashville, TN, United States of America
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Wang T, Yao W, Li J, He Q, Shao Y, Huang F. Acetyl-CoA from inflammation-induced fatty acids oxidation promotes hepatic malate-aspartate shuttle activity and glycolysis. Am J Physiol Endocrinol Metab 2018; 315:E496-E510. [PMID: 29763372 DOI: 10.1152/ajpendo.00061.2018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hepatic metabolic syndrome is associated with inflammation, as inflammation stimulates the reprogramming of nutrient metabolism and hepatic mitochondria-generated acetyl-CoA, but how acetyl-CoA affects the reprogramming of nutrient metabolism, especially glucose and fatty acids, in the condition of inflammation is still unclear. Here, we used an acute inflammation model in which pigs were injected with lipopolysaccharide (LPS) and found that hepatic glycolysis and fatty acid oxidation are both promoted. Acetyl-proteome profiling of LPS-infected pigs liver showed that inflammatory stress exacerbates the acetylation of mitochondrial proteins. Both mitochondrial glutamate oxaloacetate transaminase 2 (GOT2) and malate dehydrogenase 2 (MDH2) were acetylated, and the malate-aspartate shuttle (MAS) activity was stimulated to maintain glycolysis. With the use of 13C-carbon tracing in vitro, acetyl-CoA was found to be mainly supplied by lipid-derived fatty acid oxidation rather than glucose-derived pyruvate oxidative decarboxylation, while glucose was mainly used for lactate production in response to inflammatory stress. The results of the mitochondrial experiment showed that acetyl-CoA directly increases MDH2 and, in turn, the GOT2 acetylation level affects MAS activity. Treatment with palmitate in primary hepatocytes from LPS-injected pigs increased the hepatic production of acetyl-CoA, pyruvate, and lactate; MAS activity; and hepatic MDH2 and GOT2 hyperacetylation, while the deficiency of long-chain acetyl-CoA dehydrogenase resulted in the stabilization of these parameters. These observations suggest that acetyl-CoA produced by fatty acid oxidation promotes MAS activity and glycolysis via nonenzymatic acetylation during the inflammatory stress response.
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Affiliation(s)
- Tongxin Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
| | - Weilei Yao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
| | - Ji Li
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
| | - Qiongyu He
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
| | - Yafei Shao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
| | - Feiruo Huang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University , Wuhan , China
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Hui M, Cheng J, Sha Z. First comprehensive analysis of lysine acetylation in Alvinocaris longirostris from the deep-sea hydrothermal vents. BMC Genomics 2018; 19:352. [PMID: 29747590 PMCID: PMC5946511 DOI: 10.1186/s12864-018-4745-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 04/30/2018] [Indexed: 11/27/2022] Open
Abstract
Background Deep-sea hydrothermal vents are unique chemoautotrophic ecosystems with harsh conditions. Alvinocaris longirostris is one of the dominant crustacean species inhabiting in these extreme environments. It is significant to clarify mechanisms in their adaptation to the vents. Lysine acetylation has been known to play critical roles in the regulation of many cellular processes. However, its function in A. longirostris and even marine invertebrates remains elusive. Our study is the first, to our knowledge, to comprehensively investigate lysine acetylome in A. longirostris. Results In total, 501 unique acetylation sites from 206 proteins were identified by combination of affinity enrichment and high-sensitive-massspectrometer. It was revealed that Arg, His and Lys occurred most frequently at the + 1 position downstream of the acetylation sites, which were all alkaline amino acids and positively charged. Functional analysis revealed that the protein acetylation was involved in diverse cellular processes, such as biosynthesis of amino acids, citrate cycle, fatty acid degradation and oxidative phosphorylation. Acetylated proteins were found enriched in mitochondrion and peroxisome, and many stress response related proteins were also discovered to be acetylated, like arginine kinases, heat shock protein 70, and hemocyanins. In the two hemocyanins, nine acetylation sites were identified, among which one acetylation site was unique in A. longirostris when compared with other shallow water shrimps. Further studies are warranted to verify its function. Conclusion The lysine acetylome of A. longirostris is investigated for the first time and brings new insights into the regulation function of the lysine acetylation. The results supply abundant resources for exploring the functions of acetylation in A. longirostris and other shrimps. Electronic supplementary material The online version of this article (10.1186/s12864-018-4745-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Min Hui
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiao Cheng
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhongli Sha
- Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China. .,Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China.
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Wei L, Meyer JG, Schilling B. Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry. J Vis Exp 2018. [PMID: 29683460 PMCID: PMC5933372 DOI: 10.3791/57209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Post-translational modification (PTM) of protein lysine residues by NƐ-acylation induces structural changes that can dynamically regulate protein functions, for example, by changing enzymatic activity or by mediating interactions. Precise quantification of site-specific protein acylation occupancy, or stoichiometry, is essential for understanding the functional consequences of both global low-level stoichiometry and individual high-level acylation stoichiometry of specific lysine residues. Other groups have reported measurement of lysine acetylation stoichiometry by comparing the ratio of peptide precursor isotopes from endogenous, natural abundance acylation and exogenous, heavy isotope-labeled acylation introduced after quantitative chemical acetylation of proteins using stable isotope-labeled acetic anhydride. This protocol describes an optimized approach featuring several improvements, including: (1) increased chemical acylation efficiency, (2) the ability to measure protein succinylation in addition to acetylation, and (3) improved quantitative accuracy due to reduced interferences using fragment ion quantification from data-independent acquisitions (DIA) instead of precursor ion signal from data-dependent acquisition (DDA). The use of extracted peak areas from fragment ions for quantification also uniquely enables differentiation of site-level acylation stoichiometry from proteolytic peptides containing more than one lysine residue, which is not possible using precursor ion signals for quantification. Data visualization in Skyline, an open source quantitative proteomics environment, allows for convenient data inspection and review. Together, this workflow offers unbiased, precise, and accurate quantification of site-specific lysine acetylation and succinylation occupancy of an entire proteome, which may reveal and prioritize biologically relevant acylation sites.
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Affiliation(s)
- Lei Wei
- Buck Institute for Research on Aging
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Carrico C, Meyer JG, He W, Gibson BW, Verdin E. The Mitochondrial Acylome Emerges: Proteomics, Regulation by Sirtuins, and Metabolic and Disease Implications. Cell Metab 2018; 27. [PMID: 29514063 PMCID: PMC5863732 DOI: 10.1016/j.cmet.2018.01.016] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Post-translational modification of lysine residues via reversible acylation occurs on proteins from diverse pathways, functions, and organisms. While nuclear protein acylation reflects the competing activities of enzymatic acyltransferases and deacylases, mitochondrial acylation appears to be driven mostly via a non-enzymatic mechanism. Three protein deacylases, SIRT3, SIRT4, and SIRT5, reside in the mitochondria and remove these modifications from targeted proteins in an NAD+-dependent manner. Recent proteomic surveys of mitochondrial protein acylation have identified the sites of protein acetylation, succinylation, glutarylation, and malonylation and their regulation by SIRT3 and SIRT5. Here, we review recent advances in this rapidly moving field, their biological significance, and their implications for mitochondrial function, metabolic regulation, and disease pathogenesis.
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Affiliation(s)
- Chris Carrico
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA; Gladstone Institutes and University of California, San Francisco, San Francisco, CA 94158, USA
| | - Jesse G Meyer
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Wenjuan He
- Gladstone Institutes and University of California, San Francisco, San Francisco, CA 94158, USA
| | - Brad W Gibson
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Eric Verdin
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA; Gladstone Institutes and University of California, San Francisco, San Francisco, CA 94158, USA.
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Edgett BA, Hughes MC, Matusiak JBL, Perry CGR, Simpson CA, Gurd BJ. SIRT3 gene expression but not SIRT3 subcellular localization is altered in response to fasting and exercise in human skeletal muscle. Exp Physiol 2018; 101:1101-13. [PMID: 27337034 DOI: 10.1113/ep085744] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 05/25/2016] [Indexed: 12/30/2022]
Abstract
NEW FINDINGS What is the central question of this study? Evidence from cellular and animal models suggests that SIRT3 is involved in regulating aerobic ATP production. Thus, we investigated whether changes in fatty acid and oxidative metabolism known to accompany fasting and exercise occur in association with changes in SIRT3 mitochondrial localization and expression in human skeletal muscle. What is the main finding and its importance? We find that 48 h of fasting and acute endurance exercise decrease SIRT3 mRNA expression but do not alter SIRT3 mitochondrial localization despite marked increases in fatty acid oxidation. This suggests that SIRT3 activity is not regulated by changes in mitochondrial localization in response to cellular energy stress in human skeletal muscle. The present study examined SIRT3 expression and SIRT3 mitochondrial localization in response to acute exercise and short-term fasting in human skeletal muscle. Experiment 1 involved eight healthy men (age, 21.4 ± 2.8 years; peak O2 uptake, 47.1 ± 11.8 ml min(-1) kg(-1) ) who performed a single bout of exercise at ∼55% of peak aerobic work rate for 1 h. Muscle biopsies were obtained at rest (Rest), immediately after exercise (EX-0) and 3 h postexercise (EX-3). Experiment 2 involved 10 healthy men (age, 22.0 ± 1.5 years; peak O2 uptake, 46.9 ± 6.0 ml min−1 kg−1) who underwent a 48 h fast, with muscle biopsies collected 1 h postprandial (Fed) and after 48 h of fasting (Fast). Mitochondrial respiration was measured using high-resolution respirometry in permeabilized muscle fibre bundles to assess substrate oxidation. Whole body fat oxidation increased after both exercise (Rest, 0.96 ± 0.32 kcal min(-1) ; Exercise, 5.66 ± 1.97 kcal min(-1) ; P < 0.001) and fasting (Fed, 0.87 ± 0.51 kcal min(-1) ; Fast, 1.30 ± 0.37 kcal min(-1) , P < 0.05). SIRT3 gene expression decreased (P < 0.05) after both exercise (-8%) and fasting (-19%); however, SIRT3 whole muscle protein content was unaltered after fasting. No changes were observed in SIRT3 mitochondrial localization following either exercise or fasting. Fasting also decreased the Vmax of glutamate [80 ± 43 versus 50 ± 21 pmol s(-1) (mg dry weight)(-1) ; P < 0.05]. These findings suggest that SIRT3 does not appear to be regulated by changes in mitochondrial localization at the time points measured in the present study in response to cellular energy stress in human skeletal muscle.
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Affiliation(s)
- Brittany A Edgett
- School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Meghan C Hughes
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, Ontario, Canada, M3J 1P3
| | - Jennifer B L Matusiak
- School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Christopher G R Perry
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, Ontario, Canada, M3J 1P3
| | - Craig A Simpson
- Department of Emergency Medicine, Queen's University, Kingston, Ontario, Canada, K7L 3N6
| | - Brendon J Gurd
- School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada, K7L 3N6
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Herr DJ, Baarine M, Aune SE, Li X, Ball LE, Lemasters JJ, Beeson CC, Chou JC, Menick DR. HDAC1 localizes to the mitochondria of cardiac myocytes and contributes to early cardiac reperfusion injury. J Mol Cell Cardiol 2017; 114:309-319. [PMID: 29224834 DOI: 10.1016/j.yjmcc.2017.12.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/30/2017] [Accepted: 12/05/2017] [Indexed: 01/15/2023]
Abstract
RATIONALE Recent evidence indicates that histone deacetylase enzymes (HDACs) contribute to ischemia reperfusion (I/R) injury, and pan-HDAC inhibitors have been shown to be cardioprotective when administered either before an ischemic insult or during reperfusion. We have shown previously that selective inhibition of class I HDACs provides superior cardioprotection when compared to pan-HDAC inhibition in a pretreatment model, but selective class I HDAC inhibition has not been tested during reperfusion, and specific targets of class I HDACs in I/R injury have not been identified. OBJECTIVE We hypothesized that selective inhibition of class I HDACs with the drug MS-275 (entinostat) during reperfusion would improve recovery from I/R injury in the first hour of reperfusion. METHODS AND RESULTS Hearts from male Sprague-Dawley rats were subjected to ex vivo I/R injury±MS-275 class I HDAC inhibition during reperfusion alone. MS-275 significantly attenuated I/R injury, as indicated by improved LV function and tissue viability at the end of reperfusion. Unexpectedly, we observed that HDAC1 is present in the mitochondria of cardiac myocytes, but not fibroblasts or endothelial cells. We then designed mitochondria-restricted and mitochondria-excluded HDAC inhibitors, and tested both in our ex vivo I/R model. The selective inhibition of mitochondrial HDAC1 attenuated I/R injury to the same extent as MS-275, whereas the mitochondrial-excluded inhibitor did not. Further assays demonstrated that these effects are attributable to a decrease in SDHA activity and subsequent metabolic ROS production in reperfusion. CONCLUSIONS We demonstrate for the first time that HDAC1 is present within the mitochondria of cardiac myocytes, and mitochondrial HDAC1 contributes significantly to I/R injury within the first hour of reperfusion.
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Affiliation(s)
- Daniel J Herr
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Mauhamad Baarine
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Sverre E Aune
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Xiaoyang Li
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Lauren E Ball
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - John J Lemasters
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425, United States; Center for Cell Death, Injury & Regeneration, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Craig C Beeson
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425, United States
| | - James C Chou
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Donald R Menick
- Department of Medicine, Division of Cardiology, Medical University of South Carolina, Charleston, SC 29425, United States; Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29425, United States.
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43
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NAMPT-Mediated NAD(+) Biosynthesis Is Essential for Vision In Mice. Cell Rep 2017; 17:69-85. [PMID: 27681422 DOI: 10.1016/j.celrep.2016.08.073] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 07/26/2016] [Accepted: 08/19/2016] [Indexed: 01/20/2023] Open
Abstract
Photoreceptor death is the endpoint of many blinding diseases. Identifying unifying pathogenic mechanisms in these diseases may offer global approaches for facilitating photoreceptor survival. We found that rod or cone photoreceptor-specific deletion of nicotinamide phosphoribosyltransferase (Nampt), the rate-limiting enzyme in the major NAD(+) biosynthetic pathway beginning with nicotinamide, caused retinal degeneration. In both cases, we could rescue vision with nicotinamide mononucleotide (NMN). Significantly, retinal NAD(+) deficiency was an early feature of multiple mouse models of retinal dysfunction, including light-induced degeneration, streptozotocin-induced diabetic retinopathy, and age-associated dysfunction. Mechanistically, NAD(+) deficiency caused metabolic dysfunction and consequent photoreceptor death. We further demonstrate that the NAD(+)-dependent mitochondrial deacylases SIRT3 and SIRT5 play important roles in retinal homeostasis and that NAD(+) deficiency causes SIRT3 dysfunction. These findings demonstrate that NAD(+) biosynthesis is essential for vision, provide a foundation for future work to further clarify the mechanisms involved, and identify a unifying therapeutic target for diverse blinding diseases.
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44
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Mauvoisin D, Atger F, Dayon L, Núñez Galindo A, Wang J, Martin E, Da Silva L, Montoliu I, Collino S, Martin FP, Ratajczak J, Cantó C, Kussmann M, Naef F, Gachon F. Circadian and Feeding Rhythms Orchestrate the Diurnal Liver Acetylome. Cell Rep 2017; 20:1729-1743. [PMID: 28813682 PMCID: PMC5568034 DOI: 10.1016/j.celrep.2017.07.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/12/2017] [Accepted: 07/24/2017] [Indexed: 12/24/2022] Open
Abstract
Lysine acetylation is involved in various biological processes and is considered a key reversible post-translational modification in the regulation of gene expression, enzyme activity, and subcellular localization. This post-translational modification is therefore highly relevant in the context of circadian biology, but its characterization on the proteome-wide scale and its circadian clock dependence are still poorly described. Here, we provide a comprehensive and rhythmic acetylome map of the mouse liver. Rhythmic acetylated proteins showed subcellular localization-specific phases that correlated with the related metabolites in the regulated pathways. Mitochondrial proteins were over-represented among the rhythmically acetylated proteins and were highly correlated with SIRT3-dependent deacetylation. SIRT3 activity being nicotinamide adenine dinucleotide (NAD)+ level-dependent, we show that NAD+ is orchestrated by both feeding rhythms and the circadian clock through the NAD+ salvage pathway but also via the nicotinamide riboside pathway. Hence, the diurnal acetylome relies on a functional circadian clock and affects important diurnal metabolic pathways in the mouse liver.
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Affiliation(s)
- Daniel Mauvoisin
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland; Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Florian Atger
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland; Department of Pharmacology and Toxicology, University of Lausanne, 1015 Lausanne, Switzerland
| | - Loïc Dayon
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Antonio Núñez Galindo
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Jingkui Wang
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Eva Martin
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Laetitia Da Silva
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Ivan Montoliu
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Sebastiano Collino
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Francois-Pierre Martin
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Joanna Ratajczak
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland; School of Life Sciences, Ecole Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland
| | - Carles Cantó
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland; School of Life Sciences, Ecole Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland
| | - Martin Kussmann
- Systems Nutrition, Metabonomics & Proteomics, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland
| | - Felix Naef
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Frédéric Gachon
- Diabetes and Circadian Rhythms Department, Nestlé Institute of Health Sciences, 1015 Lausanne, Switzerland; School of Life Sciences, Ecole Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland.
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45
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Potential mechanisms linking SIRT activity and hypoxic 2-hydroxyglutarate generation: no role for direct enzyme (de)acetylation. Biochem J 2017; 474:2829-2839. [PMID: 28673962 DOI: 10.1042/bcj20170389] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 06/28/2017] [Accepted: 07/03/2017] [Indexed: 01/11/2023]
Abstract
2-Hydroxyglutarate (2-HG) is a hypoxic metabolite with potentially important epigenetic signaling roles. The mechanisms underlying 2-HG generation are poorly understood, but evidence suggests a potential regulatory role for the sirtuin family of lysine deacetylases. Thus, we hypothesized that the acetylation status of the major 2-HG-generating enzymes [lactate dehydrogenase (LDH), isocitrate dehydrogenase (IDH) and malate dehydrogenase (MDH)] may govern their 2-HG-generating activity. In vitro acetylation of these enzymes, with confirmation by western blotting, mass spectrometry, reversibility by recombinant sirtuins and an assay for global lysine occupancy, yielded no effect on 2-HG-generating activity. In addition, while elevated 2-HG in hypoxia is associated with the activation of lysine deacetylases, we found that mice lacking mitochondrial SIRT3 exhibited hyperacetylation and elevated 2-HG. These data suggest that there is no direct link between enzyme acetylation and 2-HG production. Furthermore, our observed effects of in vitro acetylation on the canonical activities of IDH, MDH and LDH appeared to contrast with previous findings wherein acetyl-mimetic lysine mutations resulted in the inhibition of these enzymes. Overall, these data suggest that a causal relationship should not be assumed between acetylation of metabolic enzymes and their activities, canonical or otherwise.
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46
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Taylor EB. Functional Properties of the Mitochondrial Carrier System. Trends Cell Biol 2017; 27:633-644. [PMID: 28522206 DOI: 10.1016/j.tcb.2017.04.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/16/2017] [Accepted: 04/18/2017] [Indexed: 11/28/2022]
Abstract
The mitochondrial carrier system (MCS) transports small molecules between mitochondria and the cytoplasm. It is integral to the core mitochondrial function to regulate cellular chemistry by metabolism. The mammalian MCS comprises the transporters of the 53-member canonical SLC25A family and a lesser number of identified noncanonical transporters. The recent discovery and investigations of the mitochondrial pyruvate carrier (MPC) illustrate the diverse effects a single mitochondrial carrier may exert on cellular function. However, the transport selectivities of many carriers remain unknown, and most have not been functionally investigated in mammalian cells. The mechanisms coordinating their function as a unified system remain undefined. Increased accessibility to molecular genetic and metabolomic technologies now greatly enables investigation of the MCS. Continued investigation of the MCS may reveal how mitochondria encode complex regulatory information within chemical thermodynamic gradients. This understanding may enable precision modulation of cellular chemistry to counteract the dysmetabolism inherent in disease.
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Affiliation(s)
- Eric B Taylor
- Department of Biochemistry, Fraternal Order of the Eagles Diabetes Center, Holden Comprehensive Cancer Center, Abboud Cardiovascular Research Center, Pappajohn Biomedical Discovery Institute, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA.
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47
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Donato V, Bonora M, Simoneschi D, Sartini D, Kudo Y, Saraf A, Florens L, Washburn MP, Stadtfeld M, Pinton P, Pagano M. The TDH-GCN5L1-Fbxo15-KBP axis limits mitochondrial biogenesis in mouse embryonic stem cells. Nat Cell Biol 2017; 19:341-351. [PMID: 28319092 PMCID: PMC5376241 DOI: 10.1038/ncb3491] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/13/2017] [Indexed: 02/07/2023]
Abstract
Self-renewing naive mouse embryonic stem cells (mESCs) contain few mitochondria, which increase in number and volume at the onset of differentiation. KBP (encoded by Kif1bp) is an interactor of the mitochondrial-associated kinesin Kif1Bα. We found that TDH, responsible for mitochondrial production of acetyl-CoA in mESCs, and the acetyltransferase GCN5L1 cooperate to acetylate Lys501 in KBP, allowing its recognition by and degradation via Fbxo15, an F-box protein transcriptionally controlled by the pluripotency core factors and repressed following differentiation. Defects in KBP degradation in mESCs result in an unscheduled increase in mitochondrial biogenesis, enhanced respiration and ROS production, and inhibition of cell proliferation. Silencing of Kif1Bα reverts the aberrant increase in mitochondria induced by KBP stabilization. Notably, following differentiation, Kif1bp-/- mESCs display impaired expansion of the mitochondrial mass and form smaller embryoid bodies. Thus, KBP proteolysis limits the accumulation of mitochondria in mESCs to preserve their optimal fitness, whereas KBP accumulation promotes mitochondrial biogenesis in differentiating cells.
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Affiliation(s)
- Valerio Donato
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,NYU Perlmutter Cancer Center, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,Howard Hughes Medical Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA
| | - Massimo Bonora
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara 70, Ferrara 44121, Italy
| | - Daniele Simoneschi
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,NYU Perlmutter Cancer Center, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA
| | - Davide Sartini
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,NYU Perlmutter Cancer Center, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA
| | - Yasusei Kudo
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,NYU Perlmutter Cancer Center, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,Department of Oral Molecular Pathology, Tokushima University Graduate School 3-18-15 Kuramoto, Tokushima 770-8504, Japan
| | - Anita Saraf
- The Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA
| | - Laurence Florens
- The Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA
| | - Michael P Washburn
- The Stowers Institute for Medical Research, 1000 East 50th Street, Kansas City, Missouri 64110, USA.,Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, Kansas 66160, USA
| | - Matthias Stadtfeld
- Skirball Institute of Biomolecular Medicine and Helen L. and Martin S. Kimmel Center for Biology and Medicine, New York University School of Medicine, 522 First Avenue, New York, New York 10016, USA
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara 70, Ferrara 44121, Italy
| | - Michele Pagano
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,NYU Perlmutter Cancer Center, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA.,Howard Hughes Medical Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, New York 10016, USA
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48
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Harris PS, Gomez JD, Backos DS, Fritz KS. Characterizing Sirtuin 3 Deacetylase Affinity for Aldehyde Dehydrogenase 2. Chem Res Toxicol 2017; 30:785-793. [PMID: 28248093 DOI: 10.1021/acs.chemrestox.6b00315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Mitochondrial aldehyde dehydrogenase (ALDH2) plays a central role in the detoxification of reactive aldehydes generated through endogenous and exogenous sources. The biochemical regulation of enzyme activity through post-translational modification provides an intricate response system regulating mitochondrial detoxification pathways. ALDH2 is a known target of lysine acetylation, which arises as a consequence of mitochondrial bioenergetic flux and sirtuin deacetylase activity. The mitochondrial deacetylase Sirtuin 3 (SIRT3) has been reported to alter ALDH2 lysine acetylation status, yet the mechanism and consequence of this interaction remain unknown. The in vitro results presented here provide a novel biochemical approach using stable-isotope dilution mass spectrometry to elucidate which lysine residues are targeted by SIRT3 for deacetylation. Furthermore, HPLC-MS/MS and computational modeling elucidate a potential role for acetyl-Lys369 on ALDH2 in perturbing normal β-nicotinamide adenine dinucleotide (NAD+) cofactor binding.
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Affiliation(s)
- Peter S Harris
- Graduate Program in Toxicology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus , Aurora, Colorado 80045, United States
| | - Joe D Gomez
- Graduate Program in Toxicology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus , Aurora, Colorado 80045, United States
| | - Donald S Backos
- Graduate Program in Toxicology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus , Aurora, Colorado 80045, United States
| | - Kristofer S Fritz
- Graduate Program in Toxicology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus , Aurora, Colorado 80045, United States
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49
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Zhang Y, Avalos JL. Traditional and novel tools to probe the mitochondrial metabolism in health and disease. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2017; 9. [PMID: 28067471 DOI: 10.1002/wsbm.1373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/07/2016] [Accepted: 11/09/2016] [Indexed: 02/06/2023]
Abstract
Mitochondrial metabolism links energy production to other essential cellular processes such as signaling, cellular differentiation, and apoptosis. In addition to producing adenosine triphosphate (ATP) as an energy source, mitochondria are responsible for the synthesis of a myriad of important metabolites and cofactors such as tetrahydrofolate, α-ketoacids, steroids, aminolevulinic acid, biotin, lipoic acid, acetyl-CoA, iron-sulfur clusters, heme, and ubiquinone. Furthermore, mitochondria and their metabolism have been implicated in aging and several human diseases, including inherited mitochondrial disorders, cardiac dysfunction, heart failure, neurodegenerative diseases, diabetes, and cancer. Therefore, there is great interest in understanding mitochondrial metabolism and the complex relationship it has with other cellular processes. A large number of studies on mitochondrial metabolism have been conducted in the last 50 years, taking a broad range of approaches. In this review, we summarize and discuss the most commonly used tools that have been used to study different aspects of the metabolism of mitochondria: ranging from dyes that monitor changes in the mitochondrial membrane potential and pharmacological tools to study respiration or ATP synthesis, to more modern tools such as genetically encoded biosensors and trans-omic approaches enabled by recent advances in mass spectrometry, computation, and other technologies. These tools have allowed the large number of studies that have shaped our current understanding of mitochondrial metabolism. WIREs Syst Biol Med 2017, 9:e1373. doi: 10.1002/wsbm.1373 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Yanfei Zhang
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, USA
| | - José L Avalos
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, USA.,Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ, USA.,Department of Molecular Biology, Princeton University, Princeton, NJ, USA
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50
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Thiagarajan D, Vedantham S, Ananthakrishnan R, Schmidt AM, Ramasamy R. Mechanisms of transcription factor acetylation and consequences in hearts. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1862:2221-2231. [PMID: 27543804 PMCID: PMC5159280 DOI: 10.1016/j.bbadis.2016.08.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/12/2016] [Accepted: 08/14/2016] [Indexed: 01/06/2023]
Abstract
Acetylation of proteins as a post-translational modification is gaining rapid acceptance as a cellular control mechanism on par with other protein modification mechanisms such as phosphorylation and ubiquitination. Through genetic manipulations and evolving proteomic technologies, identification and consequences of transcription factor acetylation is beginning to emerge. In this review, we summarize the field and discuss newly unfolding mechanisms and consequences of transcription factor acetylation in normal and stressed hearts. This article is part of a Special Issue entitled: The role of post-translational protein modifications on heart and vascular metabolism edited by Jason R.B. Dyck & Jan F.C. Glatz.
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Affiliation(s)
- Devi Thiagarajan
- Diabetes Research Program, Division of Endocrinology, Department of Medicine, NYU Langone Medical Center, NY, New York 10016, United States
| | | | - Radha Ananthakrishnan
- Diabetes Research Program, Division of Endocrinology, Department of Medicine, NYU Langone Medical Center, NY, New York 10016, United States
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Department of Medicine, NYU Langone Medical Center, NY, New York 10016, United States
| | - Ravichandran Ramasamy
- Diabetes Research Program, Division of Endocrinology, Department of Medicine, NYU Langone Medical Center, NY, New York 10016, United States.
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