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Stanczyk P, Tatekoshi Y, Shapiro JS, Nayudu K, Chen Y, Zilber Z, Schipma M, De Jesus A, Mahmoodzadeh A, Akrami A, Chang HC, Ardehali H. DNA Damage and Nuclear Morphological Changes in Cardiac Hypertrophy Are Mediated by SNRK Through Actin Depolymerization. Circulation 2023; 148:1582-1592. [PMID: 37721051 PMCID: PMC10840668 DOI: 10.1161/circulationaha.123.066002] [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: 07/13/2023] [Accepted: 08/23/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Proper nuclear organization is critical for cardiomyocyte function, because global structural remodeling of nuclear morphology and chromatin structure underpins the development and progression of cardiovascular disease. Previous reports have implicated a role for DNA damage in cardiac hypertrophy; however, the mechanism for this process is not well delineated. AMPK (AMP-activated protein kinase) family of proteins regulates metabolism and DNA damage response (DDR). Here, we examine whether a member of this family, SNRK (SNF1-related kinase), which plays a role in cardiac metabolism, is also involved in hypertrophic remodeling through changes in DDR and structural properties of the nucleus. METHODS We subjected cardiac-specific Snrk-/- mice to transaortic banding to assess the effect on cardiac function and DDR. In parallel, we modulated SNRK in vitro and assessed its effects on DDR and nuclear parameters. We also used phosphoproteomics to identify novel proteins that are phosphorylated by SNRK. Last, coimmunoprecipitation was used to verify Destrin (DSTN) as the binding partner of SNRK that modulates its effects on the nucleus and DDR. RESULTS Cardiac-specific Snrk-/- mice display worse cardiac function and cardiac hypertrophy in response to transaortic banding, and an increase in DDR marker pH2AX (phospho-histone 2AX) in their hearts. In addition, in vitro Snrk knockdown results in increased DNA damage and chromatin compaction, along with alterations in nuclear flatness and 3-dimensional volume. Phosphoproteomic studies identified a novel SNRK target, DSTN, a member of F-actin depolymerizing factor proteins that directly bind to and depolymerize F-actin. SNRK binds to DSTN, and DSTN downregulation reverses excess DNA damage and changes in nuclear parameters, in addition to cellular hypertrophy, with SNRK knockdown. We also demonstrate that SNRK knockdown promotes excessive actin depolymerization, measured by the increased ratio of G-actin to F-actin. Last, jasplakinolide, a pharmacological stabilizer of F-actin, rescues the increased DNA damage and aberrant nuclear morphology in SNRK-downregulated cells. CONCLUSIONS These results indicate that SNRK is a key player in cardiac hypertrophy and DNA damage through its interaction with DSTN. This interaction fine-tunes actin polymerization to reduce DDR and maintain proper cardiomyocyte nuclear shape and morphology.
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Affiliation(s)
- Paulina Stanczyk
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
- These authors contributed equally
| | - Yuki Tatekoshi
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
- These authors contributed equally
| | - Jason S. Shapiro
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
- These authors contributed equally
| | - Krithika Nayudu
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Yihan Chen
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Zachary Zilber
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Matthew Schipma
- Department of Biochemistry and Molecular Genetics, Northwestern University School of Medicine, Chicago, IL, USA
| | - Adam De Jesus
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Amir Mahmoodzadeh
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Ashley Akrami
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Hsiang-Chun Chang
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
| | - Hossein Ardehali
- Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA
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2
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Zou J, Wang W, Lu Y, Ayala J, Dong K, Zhou H, Wang J, Chen W, Weintraub NL, Zhou J, Li J, Su H. Neddylation is required for perinatal cardiac development through stimulation of metabolic maturation. Cell Rep 2023; 42:112018. [PMID: 36662623 PMCID: PMC10029150 DOI: 10.1016/j.celrep.2023.112018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/23/2022] [Accepted: 01/05/2023] [Indexed: 01/21/2023] Open
Abstract
Cardiac maturation is crucial for postnatal cardiac development and is increasingly known to be regulated by a series of transcription factors. However, post-translational mechanisms regulating this process remain unclear. Here we report the indispensable role of neddylation in cardiac maturation. Mosaic deletion of NAE1, an essential enzyme for neddylation, in neonatal hearts results in the rapid development of cardiomyopathy and heart failure. NAE1 deficiency disrupts transverse tubule formation, inhibits physiological hypertrophy, and represses fetal-to-adult isoform switching, thus culminating in cardiomyocyte immaturation. Mechanistically, we find that neddylation is needed for the perinatal metabolic transition from glycolytic to oxidative metabolism in cardiomyocytes. Further, we show that HIF1α is a putative neddylation target and that inhibition of neddylation accumulates HIF1α and impairs fatty acid utilization and bioenergetics in cardiomyocytes. Together, our data show neddylation is required for cardiomyocyte maturation through promoting oxidative metabolism in the developing heart.
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Affiliation(s)
- Jianqiu Zou
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Wenjuan Wang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Key Laboratory of Protein Modification and Degradation, State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Yi Lu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Juan Ayala
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Kunzhe Dong
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Hongyi Zhou
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Jinxi Wang
- Department of Medicine, University of Iowa, 200 Hawkins Drive, CBRB 2270B, Iowa City, IA 52242, USA
| | - Weiqin Chen
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Neal L Weintraub
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Jiliang Zhou
- Department of Medicine, University of Iowa, 200 Hawkins Drive, CBRB 2270B, Iowa City, IA 52242, USA
| | - Jie Li
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Division of Cardiology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Huabo Su
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA.
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3
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Chowdhury S, Ramchandran R, Palecek SP, Acevedo-Acevedo S, Bishop E. Sucrose Nonfermenting-Related Kinase Expression Is Related to a Metabolic Switch in Ovarian Cancer Cells That Results in Increased Fatty Acid Oxidation. Cancer Invest 2023; 41:330-344. [PMID: 36227231 DOI: 10.1080/07357907.2022.2136376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ovarian cancer frequently metastasizes to the omentum, which is primarily comprised of adipocytes. Our previous study found that sucrose nonfermenting-related kinase (SNRK) expression is lower in advanced-stage compared with early-stage ovarian cancer tissue. In this study, SNRK knockdown was performed in ovarian cancer cell lines using lentiviral transduction and resulted in decreased cell proliferation, increased invasion, and a switch in metabolism to increased fatty acid oxidation (FAO). Our data suggest that SNRK works as a metabolic checkpoint that allows for oxidative phosphorylation and prevents FAO during a time of rapid tumor growth.
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Affiliation(s)
- Shreya Chowdhury
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Ramani Ramchandran
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Medical College of Wisconsin, Milwaukee, WI, USA.,Department of Pediatrics, Division of Neonatology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Sean P Palecek
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Erin Bishop
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
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Aonuma T, Moukette B, Kawaguchi S, Barupala NP, Sepúlveda MN, Frick K, Tang Y, Guglin M, Raman SV, Cai C, Liangpunsakul S, Nakagawa S, Kim IM. MiR-150 Attenuates Maladaptive Cardiac Remodeling Mediated by Long Noncoding RNA MIAT and Directly Represses Profibrotic Hoxa4. Circ Heart Fail 2022; 15:e008686. [PMID: 35000421 PMCID: PMC9018469 DOI: 10.1161/circheartfailure.121.008686] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND MicroRNA-150 (miR-150) plays a protective role in heart failure (HF). Long noncoding RNA, myocardial infarction-associated transcript (MIAT) regulates miR-150 function in vitro by direct interaction. Concurrent with miR-150 downregulation, MIAT is upregulated in failing hearts, and gain-of-function single-nucleotide polymorphisms in MIAT are associated with increased risk of myocardial infarction (MI) in humans. Despite the correlative relationship between MIAT and miR-150 in HF, their in vivo functional relationship has never been established, and molecular mechanisms by which these 2 noncoding RNAs regulate cardiac protection remain elusive. METHODS We use MIAT KO (knockout), Hoxa4 (homeobox a4) KO, MIAT TG (transgenic), and miR-150 TG mice. We also develop DTG (double TG) mice overexpressing MIAT and miR-150. We then use a mouse model of MI followed by cardiac functional, structural, and mechanistic studies by echocardiography, immunohistochemistry, transcriptome profiling, Western blotting, and quantitative real-time reverse transcription-polymerase chain reaction. Moreover, we perform expression analyses in hearts from patients with HF. Lastly, we investigate cardiac fibroblast activation using primary adult human cardiac fibroblasts and in vitro assays to define the conserved MIAT/miR-150/HOXA4 axis. RESULTS Using novel mouse models, we demonstrate that genetic overexpression of MIAT worsens cardiac remodeling, while genetic deletion of MIAT protects hearts against MI. Importantly, miR-150 overexpression attenuates the detrimental post-MI effects caused by MIAT. Genome-wide transcriptomic analysis of MIAT null mouse hearts identifies Hoxa4 as a novel downstream target of the MIAT/miR-150 axis. Hoxa4 is upregulated in cardiac fibroblasts isolated from ischemic myocardium and subjected to hypoxia/reoxygenation. HOXA4 is also upregulated in patients with HF. Moreover, Hoxa4 deficiency in mice protects the heart from MI. Lastly, protective actions of cardiac fibroblast miR-150 are partially attributed to the direct and functional repression of profibrotic Hoxa4. CONCLUSIONS Our findings delineate a pivotal functional interaction among MIAT, miR-150, and Hoxa4 as a novel regulatory mechanism pertinent to ischemic HF.
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Affiliation(s)
- Tatsuya Aonuma
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Bruno Moukette
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Satoshi Kawaguchi
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Nipuni P. Barupala
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Marisa N. Sepúlveda
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kyle Frick
- Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Yaoliang Tang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Maya Guglin
- Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Subha V. Raman
- Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chenleng Cai
- Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Suthat Liangpunsakul
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA;,Roudebush Veterans Administration Medical Center, Indianapolis, IN, USA
| | - Shinichi Nakagawa
- RNA Biology Laboratory, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Il-man Kim
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA;,Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA;,Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA;,Address for correspondence: Il-man Kim, PhD, Associate Professor, Department of Anatomy, Cell Biology and Physiology, Wells Center for Pediatric Research, Krannert Institute of Cardiology, Indiana University School of Medicine, 635 Barnhill Drive, MS 346A, Indianapolis, IN 46202, USA, , Phone: 317-278-2086
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5
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Wang ZY, Liu XX, Deng YF. Negative feedback of SNRK to circ-SNRK regulates cardiac function post-myocardial infarction. Cell Death Differ 2021; 29:709-721. [PMID: 34621049 PMCID: PMC8989981 DOI: 10.1038/s41418-021-00885-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/09/2022] Open
Abstract
A limited delivery of oxygen and metabolic substrate to the heart caused by myocardial infarction (MI) impairs the cardiac function, and often results in heart failure. Here, we identified a circRNA (circ-SNRK) from SNRK (sucrose nonfermenting 1-related kinase, which can increase the cardiac mitochondrial efficiency) in cardiomyocytes (CMs). Circ-SNRK can sponge the miR-33 and in turn improved the ATP synthesis via SNRK, proving the existence of circ-SNRK - miR-33 - SNRK axis. Furthermore, we found that protein NOVA1 (NOVA alternative splicing regulator 1) could accelerate the circ-SNRK formation; a cleaved peptide (~55 kDa) from SNRK enters the nucleus and blocks the cyclization of circ-SNRK via binding to NOVA1. The aforementioned negative feedback of SNRK to circ-SNRK limited the SNRK at a proper level, and inhibited the protective role of circ-SNRK in ischemic heart. In addition, our in vivo experiment indicated that the overexpression of exogenic circ-SNRK could break this loop and improves the cardiac function post-MI in rats. Together, our results demonstrated that the negative loop of circ-SNRK with SNRK regulates the energy metabolism in CMs, thus might be a potential therapeutic target for heart failure.
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Affiliation(s)
- Zhi-Yan Wang
- Department of cardiovascular medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Xiao Liu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Shanghai Medical College of Fudan University, Shanghai, China
| | - Yun-Fei Deng
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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6
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Zhu Y, Zhao P, Sun L, Lu Y, Zhu W, Zhang J, Xiang C, Mao Y, Chen Q, Zhang F. Overexpression of circRNA SNRK targets miR-103-3p to reduce apoptosis and promote cardiac repair through GSK3β/β-catenin pathway in rats with myocardial infarction. Cell Death Discov 2021; 7:84. [PMID: 33875647 PMCID: PMC8055694 DOI: 10.1038/s41420-021-00467-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/25/2021] [Accepted: 03/12/2021] [Indexed: 02/06/2023] Open
Abstract
Ischemic cardiomyopathy seriously endangers human health leading to a poor prognosis. Acute myocardial infarction (AMI) is the primary etiology, and the pathophysiological process concludes with the death of cardiomyocytes caused by acute and persistent ischemia and hypoxia in the coronary arteries. We identified a circRNA (circSNRK) which was downregulated in rats with myocardial infarction (MI), however, the role it plays in the MI environment is still unclear. This study contained experiments to investigate the role of circSNRK in the regulation of cardiac survival and explore the mechanisms underlying circSNRK functions. Quantitative real-time PCR (qRT-PCR) was performed to determine the circSNRK expression patterns in hearts. Gain-of-function assays were also conducted in vitro and in vivo to determine the role of circSNRK in cardiac repair. qRT-PCR, western blot, and luciferase reporter assays were used to study circRNA interactions with micro RNAs (miRNAs). Overexpression of circSNRK in cardiomyocytes reduced apoptosis and increased proliferation. Adeno associated virus 9 (AAV9) mediated myocardium overexpression of circSNRK in post MI hearts reduced cardiomyocyte apoptosis, promoted cardiomyocyte proliferation, enhanced angiogenesis, and improved cardiac functions. Overall, upregulation of circSNRK promotes cardiac survival and functional recovery after MI. Mechanistically, circSNRK regulates cardiomyocyte apoptosis and proliferation by acting as a miR-103-3p sponge and inducing increased expression of SNRK which can bind GSK3β to regulate its phosphorylated activity. And thus circSNRK may be a promising therapeutic target for improving clinical prognosis after MI.
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Affiliation(s)
- Yeqian Zhu
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Pengcheng Zhao
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Ling Sun
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China.,Department of Cardiology, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yao Lu
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Wenwu Zhu
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Jian Zhang
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Chengyu Xiang
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Yangming Mao
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Qiushi Chen
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Fengxiang Zhang
- Section of Pacing and Electrophysiology, Division of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing, China.
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Thirugnanam K, Ramchandran R. SNRK: a metabolic regulator with multifaceted role in development and disease. VESSEL PLUS 2020; 4:26. [PMID: 32968716 PMCID: PMC7508454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sucrose nonfermenting 1-related kinase (SNRK) is a serine/threonine kinase and a member of the adenosine monophosphate (AMP)-activated protein kinase (AMPK) family that is involved in the metabolic regulatory mechanisms in various cell types. SNRK is an important mediator in maintaining cellular metabolic homeostasis. In this review, we discuss the role of SNRK in metabolic tissues where it is expressed, including heart and adipose tissue. We discuss its role in regulating inflammation in these tissues and the pathways associated with regulating inflammation. We also discuss SNRK's role in vascular development and the processes associated with it. Finally, we review SNRK's potential as a target in various metabolic dysfunction-associated diseases such as cardiovascular diseases, diabetes, obesity, and cancer. This comprehensive review on SNRK suggests that it has therapeutic value in the suppression of inflammation in cardiac and adipose tissue.
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Affiliation(s)
- Karthikeyan Thirugnanam
- Department of Pediatrics, Division of Neonatology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Ramani Ramchandran
- Department of Pediatrics, Division of Neonatology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Obstetrics and Gynecology, Medical College of Wisconsin, Developmental Vascular Biology Program, Children’s Research Institute, Milwaukee, WI 53226, USA
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8
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Thirugnanam K, Cossette SM, Lu Q, Chowdhury SR, Harmann LM, Gupta A, Spearman AD, Sonin DL, Bordas M, Kumar SN, Pan AY, Simpson PM, Strande JL, Bishop E, Zou M, Ramchandran R. Cardiomyocyte-Specific Snrk Prevents Inflammation in the Heart. J Am Heart Assoc 2019; 8:e012792. [PMID: 31718444 PMCID: PMC6915262 DOI: 10.1161/jaha.119.012792] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/15/2019] [Indexed: 01/06/2023]
Abstract
Background The SNRK (sucrose-nonfermenting-related kinase) enzyme is critical for cardiac function. However, the underlying cause for heart failure observed in Snrk cardiac conditional knockout mouse is unknown. Methods and Results Previously, 6-month adult mice knocked out for Snrk in cardiomyocytes (CMs) displayed left ventricular dysfunction. Here, 4-month adult mice, on angiotensin II (Ang II) infusion, show rapid decline in cardiac systolic function, which leads to heart failure and death in 2 weeks. These mice showed increased expression of nuclear factor κ light chain enhancer of activated B cells (NF-κB), inflammatory signaling proteins, proinflammatory proteins in the heart, and fibrosis. Interestingly, under Ang II infusion, mice knocked out for Snrk in endothelial cells did not show significant systolic or diastolic dysfunction. Although an NF-κB inflammation signaling pathway was increased in Snrk knockout endothelial cells, this did not lead to fibrosis or mortality. In hearts of adult mice knocked out for Snrk in CMs, we also observed NF-κB pathway activation in CMs, and an increased presence of Mac2+ macrophages was observed in basal and Ang II-infused states. In vitro analysis of Snrk knockdown HL-1 CMs revealed similar upregulation of the NF-κB signaling proteins and proinflammatory proteins that was exacerbated on Ang II treatment. The Ang II-induced NF-κB pathway-mediated proinflammatory effects were mediated in part through protein kinase B or AKT, wherein AKT inhibition restored the proinflammatory signaling protein levels to baseline in Snrk knockdown HL-1 CMs. Conclusions During heart failure, SNRK acts as a cardiomyocyte-specific repressor of cardiac inflammation and fibrosis.
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Affiliation(s)
- Karthikeyan Thirugnanam
- Division of NeonatologyDepartment of PediatricsDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Stephanie M. Cossette
- Division of NeonatologyDepartment of PediatricsDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Qiulun Lu
- Center for Molecular and Translational MedicineGeorgia State UniversityAtlantaGA
| | - Shreya R. Chowdhury
- Obstetrics and GynecologyDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Leanne M. Harmann
- Division of Cardiovascular MedicineDepartment of Cell Biology, Neurobiology and AnatomyCardiovascular CenterClinical and Translational Science InstituteMedical College of WisconsinMilwaukeeWI
| | - Ankan Gupta
- Division of NeonatologyDepartment of PediatricsDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Andrew D. Spearman
- Division of Cardiology, Department of Pediatrics,
Developmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Dmitry L. Sonin
- Almazov National Medical Research CentreSt.‐PetersburgRussia
| | - Michelle Bordas
- Division of NeonatologyDepartment of PediatricsDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Suresh N. Kumar
- Division of Pediatric PathologyDepartment of PathologyMedical College of WisconsinMilwaukeeWI
| | - Amy Y. Pan
- Quantitative Health SciencesDepartment of PediatricsMedical College of WisconsinMilwaukeeWI
| | - Pippa M. Simpson
- Quantitative Health SciencesDepartment of PediatricsMedical College of WisconsinMilwaukeeWI
| | - Jennifer L. Strande
- Division of Cardiovascular MedicineDepartment of Cell Biology, Neurobiology and AnatomyCardiovascular CenterClinical and Translational Science InstituteMedical College of WisconsinMilwaukeeWI
| | - Erin Bishop
- Obstetrics and GynecologyDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
| | - Ming‐Hui Zou
- Center for Molecular and Translational MedicineGeorgia State UniversityAtlantaGA
| | - Ramani Ramchandran
- Division of NeonatologyDepartment of PediatricsDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
- Obstetrics and GynecologyDevelopmental Vascular Biology Program, Children's Research InstituteMedical College of WisconsinMilwaukeeWI
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9
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Li J, An R, Lai S, Li L, Liu S, Xu H. Dysregulation of PP2A-Akt interaction contributes to Sucrose non-fermenting related kinase (SNRK) deficiency induced insulin resistance in adipose tissue. Mol Metab 2019; 28:26-35. [PMID: 31420304 PMCID: PMC6822176 DOI: 10.1016/j.molmet.2019.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/23/2019] [Accepted: 07/30/2019] [Indexed: 12/16/2022] Open
Abstract
Objective We previously identified Sucrose non-fermenting related kinase (SNRK) as a regulator of adipose inflammation and energy homeostasis. In this study, we aimed to investigate the role of SNRK in insulin signaling in white (WAT) and brown adipose tissue (BAT). Methods Adipose tissue specific (SNRK deficiency in both WAT and BAT) and BAT specific knockout mouse models were employed. Phosphoproteomic studies were conducted to identify the novel SNRK pathway regulating insulin signaling in adipose tissue. Results SNRK ablation is sufficient to inhibit insulin-stimulated AKT phosphorylation and glucose uptake in both WAT and BAT. Phosphoproteomic study using SNRK deficient versus wild type BAT samples revealed 99% reduction of phosphorylation on Serine 80 of PPP2R5D, the regulatory subunit of Protein phosphatase 2A (PP2A). Drastic (142.5-fold) induction of phosphorylation on Serine 80 of PPP2R5D was observed in SNRK-deficient primary brown adipocytes overexpressing SNRK compared to control protein. In vitro phosphorylation reaction followed by targeted phosphoproteomic detection further confirms that human recombinant SNRK is able to phosphorylate human recombinant PPP2R5D. Dephosphorylated PPP2R5D promotes constitutive assembly of PP2A-AKT complex, therefore inhibits insulin-induced AKT phosphorylation and subsequent glucose uptake in both BAT and WAT. Knockdown of PPP2R5D in adipocytes can improve insulin sensitivity in adipocytes without SNRK expression. Conclusions Our findings demonstrate that SNRK regulates insulin signaling through controlling PPP2R5D phosphorylation, which subsequently impacts PP2A activity and then AKT phosphorylation in both WAT and BAT. SNRK may represent a promising potential target for treating insulin resistance-related metabolic disorders. SNRK is essential for insulin-stimulated AKT phosphorylation in adipose tissue. SNRK ablation causes insulin resistance in both white and brown adipose tissue. Phosphoproteomic studies identify PPP2R5D as a novel substrate of SNRK. SNRK regulates PP2A-AKT interaction through PPP2R5D phosphorylation. Enhanced PP2A activity by SNRK ablation inhibits AKT phosphorylation.
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Affiliation(s)
- Jie Li
- Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA; National Key Discipline, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China
| | - Ran An
- Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA; Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Shuiqing Lai
- Department of Endocrinology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China; Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA
| | - Linlin Li
- Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA; Department of Epidemiology & Biostatistics, School of Public Health, Zhengzhou University, China
| | - Simin Liu
- Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA
| | - Haiyan Xu
- Department of Epidemiology, Brown University, Providence, RI, USA; Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA.
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10
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Circulating miR-103a-3p contributes to angiotensin II-induced renal inflammation and fibrosis via a SNRK/NF-κB/p65 regulatory axis. Nat Commun 2019; 10:2145. [PMID: 31086184 PMCID: PMC6513984 DOI: 10.1038/s41467-019-10116-0] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 04/15/2019] [Indexed: 02/07/2023] Open
Abstract
Although angiotensin II (AngII) is known to cause renal injury and fibrosis, the underlying mechanisms remain poorly characterized. Here we show that hypertensive nephropathy (HN) patients and AngII-infused mice exhibit elevated levels of circulating miR103a-3p. We observe a positive correlation between miR-103a-3p levels and AngII-induced renal dysfunction. miR-103a-3p suppresses expression of the sucrose non-fermentable-related serine/threonine-protein kinase SNRK in glomerular endothelial cells, and glomeruli of HN patients and AngII-infused mice show reduced endothelial expression of SNRK. We find that SNRK exerts anti-inflammatory effects by interacting with activated nuclear factor-κB (NF-κB)/p65. Overall, we demonstrate that AngII increases circulating miR-103a-3p levels, which reduces SNRK levels in glomerular endothelial cells, resulting in the over-activation of NF-κB/p65 and, consequently, renal inflammation and fibrosis. Together, our work identifies miR-103a-3p/SNRK/NF-κB/p65 as a regulatory axis of AngII-induced renal inflammation and fibrosis. Angiotensin II is known to cause renal inflammation and fibrosis. Here Lu et al. show that levels of circulating miR-103a-3p are elevated in hypertensive nephropathy patients and in an animal model of angiotensin II-induced renal dysfunction, and that miR-103a-3p suppresses SNRK expression leading to the activation of the pro-inflammatory NF-κB pathway in glomerular endothelial cells.
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11
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Li J, Feng B, Nie Y, Jiao P, Lin X, Huang M, An R, He Q, Zhou HE, Salomon A, Sigrist KS, Wu Z, Liu S, Xu H. Sucrose Nonfermenting-Related Kinase Regulates Both Adipose Inflammation and Energy Homeostasis in Mice and Humans. Diabetes 2018; 67:400-411. [PMID: 29298809 PMCID: PMC5828454 DOI: 10.2337/db17-0745] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 12/15/2017] [Indexed: 12/30/2022]
Abstract
Sucrose nonfermenting-related kinase (SNRK) is a member of the AMPK-related kinase family, and its physiological role in adipose energy homeostasis and inflammation remains unknown. We previously reported that SNRK is ubiquitously and abundantly expressed in both white adipose tissue (WAT) and brown adipose tissue (BAT), but SNRK expression diminishes in adipose tissue in obesity. In this study we report novel experimental findings from both animal models and human genetics. SNRK is essential for survival; SNRK globally deficient pups die within 24 h after birth. Heterozygous mice are characterized by inflamed WAT and less BAT. Adipocyte-specific ablation of SNRK causes inflammation in WAT, ectopic lipid deposition in liver and muscle, and impaired adaptive thermogenesis in BAT. These metabolic disorders subsequently lead to decreased energy expenditure, higher body weight, and insulin resistance. We further confirm the significant association of common variants of the SNRK gene with obesity risk in humans. Through applying a phosphoproteomic approach, we identified eukaryotic elongation factor 1δ and histone deacetylase 1/2 as potential SNRK substrates. Taking these data together, we conclude that SNRK represses WAT inflammation and is essential to maintain BAT thermogenesis, making it a novel therapeutic target for treating obesity and associated metabolic disorders.
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MESH Headings
- Adipocytes, Brown/immunology
- Adipocytes, Brown/metabolism
- Adipocytes, Brown/pathology
- Adipocytes, Brown/ultrastructure
- Adipocytes, White/immunology
- Adipocytes, White/metabolism
- Adipocytes, White/pathology
- Adipocytes, White/ultrastructure
- Animals
- Body Mass Index
- Cells, Cultured
- Crosses, Genetic
- Energy Metabolism
- Female
- Gene Expression Regulation
- Genetic Predisposition to Disease
- Genome-Wide Association Study
- Humans
- Male
- Mice, Knockout
- Mice, Transgenic
- Microscopy, Electron, Transmission
- Mitochondria/immunology
- Mitochondria/metabolism
- Mitochondria/pathology
- Mitochondria/ultrastructure
- Obesity/genetics
- Obesity/physiopathology
- Panniculitis/etiology
- Panniculitis/immunology
- Panniculitis/metabolism
- Panniculitis/pathology
- Polymorphism, Single Nucleotide
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- RNA Interference
- Thermogenesis
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Affiliation(s)
- Jie Li
- National Key Discipline, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China
- Department of Epidemiology, Brown University, Providence, RI
- Center for Global Cardiometabolic Health, Brown University, Providence, RI
| | - Bin Feng
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan Province, China
| | - Yaohui Nie
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
| | - Ping Jiao
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
- School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Xiaochen Lin
- Department of Epidemiology, Brown University, Providence, RI
- Center for Global Cardiometabolic Health, Brown University, Providence, RI
| | - Mengna Huang
- Department of Epidemiology, Brown University, Providence, RI
- Center for Global Cardiometabolic Health, Brown University, Providence, RI
| | - Ran An
- Department of Epidemiology, Brown University, Providence, RI
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Qin He
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
| | | | - Arthur Salomon
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI
- Department of Chemistry, Brown University, Providence, RI
| | - Kirsten S Sigrist
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI
| | - Zhidan Wu
- Musculoskeletal Disease Area, Novartis Institutes for Biomedical Research, Cambridge, MA
| | - Simin Liu
- Department of Epidemiology, Brown University, Providence, RI
- Center for Global Cardiometabolic Health, Brown University, Providence, RI
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
| | - Haiyan Xu
- Department of Epidemiology, Brown University, Providence, RI
- Center for Global Cardiometabolic Health, Brown University, Providence, RI
- Hallett Center for Diabetes and Endocrinology, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI
- Merck & Co., Boston, MA
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12
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Lu Q, Xie Z, Yan C, Ding Y, Ma Z, Wu S, Qiu Y, Cossette SM, Bordas M, Ramchandran R, Zou MH. SNRK (Sucrose Nonfermenting 1-Related Kinase) Promotes Angiogenesis In Vivo. Arterioscler Thromb Vasc Biol 2018; 38:373-385. [PMID: 29242271 PMCID: PMC5785416 DOI: 10.1161/atvbaha.117.309834] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/28/2017] [Indexed: 01/19/2023]
Abstract
OBJECTIVE SNRK (sucrose nonfermenting 1-related kinase) is a novel member of the AMPK (adenosine monophosphate-activated protein kinase)-related superfamily that is activated in the process of angiogenesis. Currently, little is known about the function of SNRK in angiogenesis in the physiological and pathological conditions. APPROACH AND RESULTS In this study, in Snrk global heterozygous knockout mice, retina angiogenesis and neovessel formation after hindlimb ischemia were suppressed. Consistently, mice with endothelial cell (EC)-specific Snrk deletion exhibited impaired retina angiogenesis, and delayed perfusion recovery and exacerbated muscle apoptosis in ischemic hindlimbs, compared with those of littermate wide-type mice. Endothelial SNRK expression was increased in the extremity vessel samples from nonischemic human. In ECs cultured in hypoxic conditions, HIF1α (hypoxia inducible factor 1α) bound to the SNRK promoter to upregulate SNRK expression. In the nuclei of hypoxic ECs, SNRK complexed with SP1 (specificity protein 1), and together, they bound to an SP1-binding motif in the ITGB1 (β1 integrin) promoter, resulting in enhanced ITGB1 expression and promoted EC migration. Furthermore, SNRK or SP1 deficiency in ECs ameliorated hypoxia-induced ITGB1 expression and, consequently, inhibited EC migration and angiogenesis. CONCLUSIONS Taken together, our data have revealed that SNRK/SP1-ITGB1 signaling axis promotes angiogenesis in vivo.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Apoptosis
- Blood Flow Velocity
- Cadherins/genetics
- Cadherins/metabolism
- Cell Movement
- Cell Proliferation
- Cells, Cultured
- Disease Models, Animal
- Endothelial Cells/enzymology
- Endothelial Cells/pathology
- Gene Expression Regulation, Enzymologic
- Hindlimb
- Human Umbilical Vein Endothelial Cells/enzymology
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Integrin beta1/genetics
- Integrin beta1/metabolism
- Ischemia/enzymology
- Ischemia/genetics
- Ischemia/physiopathology
- Lung/blood supply
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Skeletal/blood supply
- Neovascularization, Physiologic
- Promoter Regions, Genetic
- Protein Serine-Threonine Kinases/deficiency
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Regional Blood Flow
- Retinal Vessels/enzymology
- Sp1 Transcription Factor/genetics
- Sp1 Transcription Factor/metabolism
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Affiliation(s)
- Qiulun Lu
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Zhonglin Xie
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Chenghui Yan
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Ye Ding
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Zejun Ma
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Shengnan Wu
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Yu Qiu
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Stephanie M Cossette
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Michelle Bordas
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee
| | - Ramani Ramchandran
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee.
| | - Ming-Hui Zou
- From the Center for Molecular and Translational Medicine, Georgia State University, Atlanta (Q.L., Z.X., C.Y., Y.D., Z.M., S.W., Y.Q., M.-H.Z.); and Division of Neonatology, Department of Pediatrics (S.M.C., M.B., R.R.) and Obstetrics and Gynecology (OBGYN), Developmental Vascular Biology Program, Children's Research Institute (R.R.), Medical College of Wisconsin, Milwaukee.
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13
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Wang YL, Wang J, Chen X, Wang ZX, Wu JW. Crystal structure of the kinase and UBA domains of SNRK reveals a distinct UBA binding mode in the AMPK family. Biochem Biophys Res Commun 2017; 495:1-6. [PMID: 29061304 DOI: 10.1016/j.bbrc.2017.10.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 01/26/2023]
Abstract
Sucrose non-fermenting (Snf1)-related kinase (SNRK) is a novel member of the AMP-activated protein kinase (AMPK) family and is involved in many metabolic processes. Here we report the crystal structure of an N-terminal SNRK fragment containing kinase and adjacent ubiquitin-associated (UBA) domains. This structure shows that the UBA domain binds between the N- and C-lobes of the kinase domain. The mode of UBA binding in SNRK largely resembles that in AMPK and brain specific kinase (BRSK), however, unique interactions play vital roles in stabilizing the KD-UBA interface of SNRK. We further propose a potential role of the UBA domain in the regulation of SNRK kinase activity. This study provides new insights into the structural diversities of the AMPK kinase family.
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Affiliation(s)
- Yu-Lu Wang
- MOE Key Laboratory of Protein Sciences and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jue Wang
- MOE Key Laboratory of Protein Sciences and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xiang Chen
- MOE Key Laboratory of Protein Sciences and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zhi-Xin Wang
- MOE Key Laboratory of Protein Sciences and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jia-Wei Wu
- MOE Key Laboratory of Protein Sciences and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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14
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Hopp EE, Cossette SM, Kumar SN, Eastwood D, Ramchandran R, Bishop E. Sucrose Non-Fermenting Related Kinase Expression in Ovarian Cancer and Correlation with Clinical Features. Cancer Invest 2017; 35:456-462. [PMID: 28722495 DOI: 10.1080/07357907.2017.1337781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Sucrose non-fermenting related kinase (SNRK) is a serine/threonine kinase known to regulate cellular metabolism and adipocyte inflammation. Since alterations in adipocyte metabolism play a role in ovarian cancer metastasis, we investigated the expression of SNRK in benign and malignant human ovarian tissue using immunohistochemistry and qPCR. The number of SNRK positive (+) nuclei is increased in malignant tissue compared to benign tissue (21.03% versus 14.90%, p < .0431). The most strongly stained malignant SNRK+ nuclei were stage 1 compared to stage 2-4 disease. Differential expression of SNRK in early versus late stage disease suggests specific roles for SNRK in ovarian cancer metastasis.
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Affiliation(s)
- Elizabeth E Hopp
- a Department of Obstetrics and Gynecology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
| | - Stephanie M Cossette
- b Department of Pediatrics, Children's Research Institute, Division of Neonatology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
| | - Suresh N Kumar
- b Department of Pediatrics, Children's Research Institute, Division of Neonatology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA.,c Division of Pediatric Pathology, Department of Pathology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
| | - Daniel Eastwood
- d Division of Biostatistics , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
| | - Ramani Ramchandran
- a Department of Obstetrics and Gynecology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA.,b Department of Pediatrics, Children's Research Institute, Division of Neonatology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
| | - Erin Bishop
- a Department of Obstetrics and Gynecology , Medical College of Wisconsin , Milwaukee , Wisconsin , USA
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15
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Rines AK, Chang HC, Wu R, Sato T, Khechaduri A, Kouzu H, Shapiro J, Shang M, Burke MA, Abdelwahid E, Jiang X, Chen C, Rawlings TA, Lopaschuk GD, Schumacker PT, Abel ED, Ardehali H. Snf1-related kinase improves cardiac mitochondrial efficiency and decreases mitochondrial uncoupling. Nat Commun 2017; 8:14095. [PMID: 28117339 PMCID: PMC5286102 DOI: 10.1038/ncomms14095] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/28/2016] [Indexed: 12/26/2022] Open
Abstract
Ischaemic heart disease limits oxygen and metabolic substrate availability to the heart, resulting in tissue death. Here, we demonstrate that the AMP-activated protein kinase (AMPK)-related protein Snf1-related kinase (SNRK) decreases cardiac metabolic substrate usage and mitochondrial uncoupling, and protects against ischaemia/reperfusion. Hearts from transgenic mice overexpressing SNRK have decreased glucose and palmitate metabolism and oxygen consumption, but maintained power and function. They also exhibit decreased uncoupling protein 3 (UCP3) and mitochondrial uncoupling. Conversely, Snrk knockout mouse hearts have increased glucose and palmitate oxidation and UCP3. SNRK knockdown in cardiac cells decreases mitochondrial efficiency, which is abolished with UCP3 knockdown. We show that Tribbles homologue 3 (Trib3) binds to SNRK, and downregulates UCP3 through PPARα. Finally, SNRK is increased in cardiomyopathy patients, and SNRK reduces infarct size after ischaemia/reperfusion. SNRK also decreases cardiac cell death in a UCP3-dependent manner. Our results suggest that SNRK improves cardiac mitochondrial efficiency and ischaemic protection. The Snf1-related kinase (SNRK) is widely expressed and yet its function is poorly understood. Here the authors show that SNRK regulates mitochondrial coupling via the Trib3-PPARα-UCP3 pathway and that cardiac overexpression of SNRK decreases metabolic substrate usage and oxygen consumption but maintains cardiac function and energy in mice.
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Affiliation(s)
- Amy K Rines
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Hsiang-Chun Chang
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Rongxue Wu
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Tatsuya Sato
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Arineh Khechaduri
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Hidemichi Kouzu
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Jason Shapiro
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Meng Shang
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Michael A Burke
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Eltyeb Abdelwahid
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Xinghang Jiang
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Chunlei Chen
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Tenley A Rawlings
- Division of Endocrinology, Metabolism, and Diabetes and Program in Molecular Medicine, University of Utah, School of Medicine, Salt Lake City, Utah 84132, USA
| | - Gary D Lopaschuk
- Cardiovascular Research Centre, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada T6G 2B7
| | - Paul T Schumacker
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - E Dale Abel
- Division of Endocrinology, Metabolism, and Diabetes and Program in Molecular Medicine, University of Utah, School of Medicine, Salt Lake City, Utah 84132, USA
| | - Hossein Ardehali
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
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16
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Cossette SM, Bhute VJ, Bao X, Harmann LM, Horswill MA, Sinha I, Gastonguay A, Pooya S, Bordas M, Kumar SN, Mirza SP, Palecek SP, Strande JL, Ramchandran R. Sucrose Nonfermenting-Related Kinase Enzyme-Mediated Rho-Associated Kinase Signaling is Responsible for Cardiac Function. ACTA ACUST UNITED AC 2016; 9:474-486. [PMID: 27780848 DOI: 10.1161/circgenetics.116.001515] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 09/28/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cardiac metabolism is critical for the functioning of the heart, and disturbance in this homeostasis is likely to influence cardiac disorders or cardiomyopathy. Our laboratory has previously shown that SNRK (sucrose nonfermenting related kinase) enzyme, which belongs to the AMPK (adenosine monophosphate-activated kinase) family, was essential for cardiac metabolism in mammals. Snrk global homozygous knockout (KO) mice die at postnatal day 0, and conditional deletion of Snrk in cardiomyocytes (Snrk cmcKO) leads to cardiac failure and death by 8 to 10 months. METHODS AND RESULTS We performed additional cardiac functional studies using echocardiography and identified further cardiac functional deficits in Snrk cmcKO mice. Nuclear magnetic resonance-based metabolomics analysis identified key metabolic pathway deficits in SNRK knockdown cardiomyocytes in vitro. Specifically, metabolites involved in lipid metabolism and oxidative phosphorylation are altered, and perturbations in these pathways can result in cardiac function deficits and heart failure. A phosphopeptide-based proteomic screen identified ROCK (Rho-associated kinase) as a putative substrate for SNRK, and mass spec-based fragment analysis confirmed key amino acid residues on ROCK that are phosphorylated by SNRK. Western blot analysis on heart lysates from Snrk cmcKO adult mice and SNRK knockdown cardiomyocytes showed increased ROCK activity. In addition, in vivo inhibition of ROCK partially rescued the in vivo Snrk cmcKO cardiac function deficits. CONCLUSIONS Collectively, our data suggest that SNRK in cardiomyocytes is responsible for maintaining cardiac metabolic homeostasis, which is mediated in part by ROCK, and alteration of this homeostasis influences cardiac function in the adult heart.
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Affiliation(s)
- Stephanie M Cossette
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Vijesh J Bhute
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Xiaoping Bao
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Leanne M Harmann
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Mark A Horswill
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Indranil Sinha
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Adam Gastonguay
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Shabnam Pooya
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Michelle Bordas
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Suresh N Kumar
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Shama P Mirza
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Sean P Palecek
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Jennifer L Strande
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.)
| | - Ramani Ramchandran
- From the Department of Pediatrics (S.M.C., A.G., S. Pooya, M.B., R.R.), OBGYN, Developmental Vascular Biology Program, Children's Research Institute (R.R.), Division of Cardiovascular Medicine, Cardiovascular Center, Clinical and Translational Science Institute (L.M.H.), Division of Cardiovascular Medicine, Department of Cell Biology, Neurobiology and Anatomy, Cardiovascular Center, Clinical and Translational Science Institute (J.L.S.), and Division of Pediatric Pathology, Department of Pathology (S.N.K.), Medical College of Wisconsin, Milwaukee; Department of Chemical and Biological Engineering (V.J.B., X.B., S. Palecek), Morgridge Institute for Research (M.A.H.), University of Wisconsin-Madison; Marginalen Bank, Stockholm, Sweden (I.S.); Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee (S.P.M.).
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17
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Miller EJ, Calamaras T, Elezaby A, Sverdlov A, Qin F, Luptak I, Wang K, Sun X, Vijay A, Croteau D, Bachschmid M, Cohen RA, Walsh K, Colucci WS. Partial Liver Kinase B1 (LKB1) Deficiency Promotes Diastolic Dysfunction, De Novo Systolic Dysfunction, Apoptosis, and Mitochondrial Dysfunction With Dietary Metabolic Challenge. J Am Heart Assoc 2015; 5:e002277. [PMID: 26722122 PMCID: PMC4859355 DOI: 10.1161/jaha.115.002277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 11/04/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Myocardial hypertrophy and dysfunction are key features of metabolic heart disease due to dietary excess. Metabolic heart disease manifests primarily as diastolic dysfunction but may progress to systolic dysfunction, although the mechanism is poorly understood. Liver kinase B1 (LKB1) is a key activator of AMP-activated protein kinase and possibly other signaling pathways that oppose myocardial hypertrophy and failure. We hypothesized that LKB1 is essential to the heart's ability to withstand the metabolic stress of dietary excess. METHODS AND RESULTS Mice heterozygous for cardiac LKB1 were fed a control diet or a high-fat, high-sucrose diet for 4 months. On the control diet, cardiac LKB1 hearts had normal structure and function. After 4 months of the high-fat, high-sucrose diet, there was left ventricular hypertrophy and diastolic dysfunction in wild-type mice. In cardiac LKB1 (versus wild-type) mice, high-fat, high-sucrose feeding caused more hypertrophy (619 versus 553 μm(2), P<0.05), the de novo appearance of systolic dysfunction (left ventricular ejection fraction; 41% versus 59%, P<0.01) with left ventricular dilation (3.6 versus 3.2 mm, P<0.05), and more severe diastolic dysfunction with progression to a restrictive filling pattern (E/A ratio; 5.5 versus 1.3, P=0.05). Myocardial dysfunction in hearts of cardiac LKB1 mice fed the high-fat, high-sucrose diet was associated with evidence of increased apoptosis and apoptotic signaling via caspase 3 and p53/PUMA (p53 upregulated modulator of apoptosis) and more severe mitochondrial dysfunction. CONCLUSIONS Partial deficiency of cardiac LKB1 promotes the adverse effects of a high-fat, high-sucrose diet on the myocardium, leading to worsening of diastolic function and the de novo appearance of systolic dysfunction. LKB1 plays a key role in protecting the heart from the consequences of metabolic stress.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Apoptosis
- Apoptosis Regulatory Proteins/metabolism
- Caspase 3/metabolism
- Diastole
- Diet, High-Fat
- Dietary Sucrose
- Disease Models, Animal
- Genetic Predisposition to Disease
- Heterozygote
- Hypertrophy, Left Ventricular/genetics
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/pathology
- Hypertrophy, Left Ventricular/physiopathology
- Mice, Knockout
- Mitochondria, Heart/enzymology
- Mitochondria, Heart/pathology
- Myocardium/enzymology
- Myocardium/pathology
- Phenotype
- Protein Serine-Threonine Kinases/deficiency
- Protein Serine-Threonine Kinases/genetics
- Signal Transduction
- Systole
- Time Factors
- Tumor Suppressor Protein p53/metabolism
- Tumor Suppressor Proteins/metabolism
- Ventricular Dysfunction, Left/genetics
- Ventricular Dysfunction, Left/metabolism
- Ventricular Dysfunction, Left/pathology
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Function, Left
- Ventricular Remodeling
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Affiliation(s)
- Edward J. Miller
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
| | - Timothy Calamaras
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Aly Elezaby
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Aaron Sverdlov
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Fuzhong Qin
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
| | - Ivan Luptak
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Ke Wang
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Xinxin Sun
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Andrea Vijay
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Dominique Croteau
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
| | - Markus Bachschmid
- Vascular Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
| | - Richard A. Cohen
- Vascular Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
| | - Kenneth Walsh
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
| | - Wilson S. Colucci
- Myocardial Biology UnitBoston Medical Center and Boston University School of MedicineBostonMA
- Whitaker Cardiovascular InstituteBoston Medical Center and Boston University School of MedicineBostonMA
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18
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Teoh JP, Park KM, Broskova Z, Jimenez FR, Bayoumi AS, Archer K, Su H, Johnson J, Weintraub NL, Tang Y, Kim IM. Identification of gene signatures regulated by carvedilol in mouse heart. Physiol Genomics 2015; 47:376-85. [PMID: 26152686 DOI: 10.1152/physiolgenomics.00028.2015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/06/2015] [Indexed: 01/14/2023] Open
Abstract
Chronic treatment with the β-blocker carvedilol has been shown to reduce established maladaptive left ventricle (LV) hypertrophy and to improve LV function in experimental heart failure. However, the detailed mechanisms by which carvedilol improves LV failure are incompletely understood. We previously showed that carvedilol is a β-arrestin-biased β1-adrenergic receptor ligand, which activates cellular pathways in the heart independent of G protein-mediated second messenger signaling. More recently, we have demonstrated by microRNA (miR) microarray analysis that carvedilol upregulates a subset of mature and pre-mature miRs, but not their primary miR transcripts in mouse hearts. Here, we next sought to identify the effects of carvedilol on LV gene expression on a genome-wide basis. Adult mice were treated with carvedilol or vehicle for 1 wk. RNA was isolated from LV tissue and hybridized for microarray analysis. Gene expression profiling analysis revealed a small group of genes differentially expressed after carvedilol treatment. Further analysis categorized these genes into pathways involved in tight junction, malaria, viral myocarditis, glycosaminoglycan biosynthesis, and arrhythmogenic right ventricular cardiomyopathy. Genes encoding proteins in the tight junction, malaria, and viral myocarditis pathways were upregulated in the LV by carvedilol, while genes encoding proteins in the glycosaminoglycan biosynthesis and arrhythmogenic right ventricular cardiomyopathy pathways were downregulated by carvedilol. These gene expression changes may reflect the molecular mechanisms that underlie the functional benefits of carvedilol therapy.
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Affiliation(s)
- Jian-Peng Teoh
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Kyoung-Mi Park
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Zuzana Broskova
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Felix R Jimenez
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Ahmed S Bayoumi
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Krystal Archer
- Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; and
| | - Huabo Su
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; Department of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - John Johnson
- Department of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Neal L Weintraub
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; and
| | - Yaoliang Tang
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; and
| | - Il-Man Kim
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, Georgia
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