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Tu Z, Yang J, Fan C. The role of different nutrients in the prevention and treatment of cardiovascular diseases. Front Immunol 2024; 15:1393378. [PMID: 38799425 PMCID: PMC11116626 DOI: 10.3389/fimmu.2024.1393378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/29/2024] [Indexed: 05/29/2024] Open
Abstract
Cardiovascular health is a hot topic around the world, and as the incidence of cardiovascular disease increases each year, people are increasingly focusing on the management of their heart health. Dietary and lifestyle changes as non-pharmacological treatments have been increasingly recognized as important in the prevention of cardiovascular disease and in reducing the risk of cardiovascular accidents. Awareness of different nutrients and their effects on cardiovascular health is important for establishing a good dietary pattern. This review summarizes the effects of the five major nutrients in the daily diet, namely carbohydrates, proteins, dietary fats, vitamins, and minerals, on cardiovascular health, and aims to provide a more comprehensive understanding of the effects of a healthy dietary pattern on cardiovascular health.
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Affiliation(s)
| | | | - Chengming Fan
- Department of Cardiovascular Surgery, the Second Xiangya Hospital, Central South University, Changsha, China
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2
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Masenga SK, Kirabo A. Salt and Gut Microbiota in Heart Failure. Curr Hypertens Rep 2023; 25:173-184. [PMID: 37219766 DOI: 10.1007/s11906-023-01245-5] [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] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
PURPOSE OF REVIEW The role and underlying mechanisms mediated by dietary salt in modulating the gut microbiota and contributing to heart failure (HF) are not clear. This review summarizes the mechanisms of dietary salt and the gut-heart axis in HF. RECENT FINDINGS The gut microbiota has been implicated in several cardiovascular diseases (CVDs) including HF. Dietary factors including high consumption of salt play a role in influencing the gut microbiota, resulting in dysbiosis. An imbalance of microbial species due to a reduction in microbial diversity with accompanying immune cell activation has been implicated in the pathogenesis of HF via several mechanisms. The gut microbiota and gut-associated metabolites contribute to HF by reducing gut microbiota biodiversity and activating several signaling pathways. High dietary salt modulates the gut microbiota composition and exacerbate or induce HF by increasing the expression of the epithelial sodium/hydrogen exchanger isoform 3 in the gut, cardiac expression of beta myosin heavy chain, activation of the myocyte enhancer factor/nuclear factor of activated T cell, and salt-inducible kinase 1. These mechanisms explain the resulting structural and functional derangements in patients with HF.
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Affiliation(s)
- Sepiso K Masenga
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Zambia
- Department of Medicine, Vanderbilt University Medical Center, Room 536 Robinson Research Building, Nashville, TN, 37232-6602, USA
| | - Annet Kirabo
- Department of Medicine, Vanderbilt University Medical Center, Room 536 Robinson Research Building, Nashville, TN, 37232-6602, USA.
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3
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Akbari A, McIntyre CW. Recent Advances in Sodium Magnetic Resonance Imaging and Its Future Role in Kidney Disease. J Clin Med 2023; 12:4381. [PMID: 37445416 PMCID: PMC10342976 DOI: 10.3390/jcm12134381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Sodium imbalance is a hallmark of chronic kidney disease (CKD). Excess tissue sodium in CKD is associated with hypertension, inflammation, and cardiorenal disease. Sodium magnetic resonance imaging (23Na MRI) has been increasingly utilized in CKD clinical trials especially in the past few years. These studies have demonstrated the association of excess sodium tissue accumulation with declining renal function across whole CKD spectrum (early- to end-stage), biomarkers of systemic inflammation, and cardiovascular dysfunction. In this article, we review recent advances of 23Na MRI in CKD and discuss its future role with a focus on the skin, the heart, and the kidney itself.
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Affiliation(s)
- Alireza Akbari
- Robarts Research Institute, Western University, London, ON N6A 3K7, Canada;
- Lilibeth Caberto Kidney Clinic Research Unit, London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Christopher W. McIntyre
- Robarts Research Institute, Western University, London, ON N6A 3K7, Canada;
- Lilibeth Caberto Kidney Clinic Research Unit, London Health Sciences Centre, London, ON N6A 5W9, Canada
- Departments of Medicine, Pediatrics and Medical Biophysics, Western University, London, ON N6A 3K7, Canada
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4
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Zhao P, Malik S. The phosphorylation to acetylation/methylation cascade in transcriptional regulation: how kinases regulate transcriptional activities of DNA/histone-modifying enzymes. Cell Biosci 2022; 12:83. [PMID: 35659740 PMCID: PMC9164400 DOI: 10.1186/s13578-022-00821-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/27/2022] [Indexed: 11/30/2022] Open
Abstract
Transcription factors directly regulate gene expression by recognizing and binding to specific DNA sequences, involving the dynamic alterations of chromatin structure and the formation of a complex with different kinds of cofactors, like DNA/histone modifying-enzymes, chromatin remodeling factors, and cell cycle factors. Despite the significance of transcription factors, it remains unclear to determine how these cofactors are regulated to cooperate with transcription factors, especially DNA/histone modifying-enzymes. It has been known that DNA/histone modifying-enzymes are regulated by post-translational modifications. And the most common and important modification is phosphorylation. Even though various DNA/histone modifying-enzymes have been classified and partly explained how phosphorylated sites of these enzymes function characteristically in recent studies. It still needs to find out the relationship between phosphorylation of these enzymes and the diseases-associated transcriptional regulation. Here this review describes how phosphorylation affects the transcription activity of these enzymes and other functions, including protein stability, subcellular localization, binding to chromatin, and interaction with other proteins.
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5
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Xia H, Zahra A, Jia M, Wang Q, Wang Y, Campbell SL, Wu J. Na +/H + Exchanger 1, a Potential Therapeutic Drug Target for Cardiac Hypertrophy and Heart Failure. Pharmaceuticals (Basel) 2022; 15:ph15070875. [PMID: 35890170 PMCID: PMC9318128 DOI: 10.3390/ph15070875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 01/27/2023] Open
Abstract
Cardiac hypertrophy is defined as increased heart mass in response to increased hemodynamic requirements. Long-term cardiac hypertrophy, if not counteracted, will ultimately lead to heart failure. The incidence of heart failure is related to myocardial infarction, which could be salvaged by reperfusion and ultimately invites unfavorable myocardial ischemia-reperfusion injury. The Na+/H+ exchangers (NHEs) are membrane transporters that exchange one intracellular proton for one extracellular Na+. The first discovered NHE isoform, NHE1, is expressed almost ubiquitously in all tissues, especially in the myocardium. During myocardial ischemia-reperfusion, NHE1 catalyzes increased uptake of intracellular Na+, which in turn leads to Ca2+ overload and subsequently myocardial injury. Numerous preclinical research has shown that NHE1 is involved in cardiac hypertrophy and heart failure, but the exact molecular mechanisms remain elusive. The objective of this review is to demonstrate the potential role of NHE1 in cardiac hypertrophy and heart failure and investigate the underlying mechanisms.
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Affiliation(s)
- Huiting Xia
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (H.X.); (A.Z.)
| | - Aqeela Zahra
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (H.X.); (A.Z.)
| | - Meng Jia
- Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China; (M.J.); (Q.W.)
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Disease, Beijing 100070, China
| | - Qun Wang
- Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China; (M.J.); (Q.W.)
- National Clinical Research Center for Neurological Disease, Beijing 100070, China
| | - Yunfu Wang
- Taihe Hospital, Hubei University of Medicine, Shiyan 440070, China;
| | - Susan L. Campbell
- Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA;
| | - Jianping Wu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China; (H.X.); (A.Z.)
- Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China; (M.J.); (Q.W.)
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100070, China
- National Clinical Research Center for Neurological Disease, Beijing 100070, China
- Correspondence:
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6
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Shandell MA, Capatina AL, Lawrence SM, Brackenbury WJ, Lagos D. Inhibition of the Na +/K +-ATPase by cardiac glycosides suppresses expression of the IDO1 immune checkpoint in cancer cells by reducing STAT1 activation. J Biol Chem 2022; 298:101707. [PMID: 35150740 PMCID: PMC8902613 DOI: 10.1016/j.jbc.2022.101707] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 12/18/2022] Open
Abstract
Despite extensive basic and clinical research on immune checkpoint regulatory pathways, little is known about the effects of the ionic tumor microenvironment on immune checkpoint expression and function. Here we describe a mechanistic link between Na+/K+-ATPase (NKA) inhibition and activity of the immune checkpoint protein indoleamine-pyrrole 2',3'-dioxygenase 1 (IDO1). We found that IDO1 was necessary and sufficient for production of kynurenine, a downstream tryptophan metabolite, in cancer cells. We developed a spectrophotometric assay to screen a library of 31 model ion transport-targeting compounds for potential effects on IDO1 function in A549 lung and MDA-MB-231 breast cancer cells. This revealed that the cardiac glycosides ouabain and digoxin inhibited kynurenine production at concentrations that did not affect cell survival. NKA inhibition by ouabain and digoxin resulted in increased intracellular Na+ levels and downregulation of IDO1 mRNA and protein levels, which was consistent with the reduction in kynurenine levels. Knockdown of ATP1A1, the ɑ1 subunit of the NKA and target of cardiac glycosides, increased Na+ levels to a lesser extent than cardiac glycoside treatment and did not affect IDO1 expression. However, ATP1A1 knockdown significantly enhanced the effect of cardiac glycosides on IDO1 expression and kynurenine production. Mechanistically, we show that cardiac glycoside treatment resulted in curtailing the length of phosphorylation-mediated stabilization of STAT1, a transcriptional regulator of IDO1 expression, an effect enhanced by ATP1A1 knockdown. Our findings reveal cross talk between ionic modulation via cardiac glycosides and immune checkpoint protein expression in cancer cells with broad mechanistic and clinical implications.
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Affiliation(s)
- Mia A Shandell
- Department of Biology, University of York, York, United Kingdom; Hull York Medical School, University of York, York, United Kingdom; York Biomedical Research Institute, University of York, York, United Kingdom
| | - Alina L Capatina
- Department of Biology, University of York, York, United Kingdom; York Biomedical Research Institute, University of York, York, United Kingdom
| | | | - William J Brackenbury
- Department of Biology, University of York, York, United Kingdom; York Biomedical Research Institute, University of York, York, United Kingdom
| | - Dimitris Lagos
- Hull York Medical School, University of York, York, United Kingdom; York Biomedical Research Institute, University of York, York, United Kingdom.
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de las Heras N, Galiana A, Ballesteros S, Olivares-Álvaro E, Fuller PJ, Lahera V, Martín-Fernández B. Proanthocyanidins Maintain Cardiac Ionic Homeostasis in Aldosterone-Induced Hypertension and Heart Failure. Int J Mol Sci 2021; 22:ijms22179602. [PMID: 34502509 PMCID: PMC8431754 DOI: 10.3390/ijms22179602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Excess aldosterone promotes pathological remodeling of the heart and imbalance in cardiac ion homeostasis of sodium, potassium and calcium. Novel treatment with proanthocyanidins in aldosterone-treated rats has resulted in downregulation of cardiac SGK1, the main genomic aldosterone-induced intracellular mediator of ion handling. It therefore follows that proanthocyanidins could be modulating cardiac ion homeostasis in aldosterone-treated rats. Male Wistar rats received aldosterone (1 mg kg−1 day−1) +1% NaCl for three weeks. Half of the animals in each group were simultaneously treated with the proanthocyanidins-rich extract (80% w/w) (PRO80, 5 mg kg−1 day−1). PRO80 prevented cardiac hypertrophy and decreased calcium content. Expression of ion channels (ROMK, NHE1, NKA and NCX1) and calcium transient mediators (CAV1.2, pCaMKII and oxCaMKII) were reduced by PRO80 treatment in aldosterone-treated rats. To conclude, our data indicate that PRO80 may offer an alternative treatment to conventional MR-blockade in the prevention of aldosterone-induced cardiac pathology.
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Affiliation(s)
- Natalia de las Heras
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
| | - Adrián Galiana
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
| | - Sandra Ballesteros
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
| | - Elena Olivares-Álvaro
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
| | - Peter J. Fuller
- Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia;
| | - Vicente Lahera
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
| | - Beatriz Martín-Fernández
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (E.O.-Á.); (V.L.)
- Department of Molecular Biology, Faculty of Biology, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain
- Correspondence: ; Tel.: +34-987-291-000 (ext. 3650)
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8
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Du H, Xiao G, Xue Z, Li Z, He S, Du X, Zhou Z, Cao L, Wang Y, Yang J, Wang X, Zhu Y. QiShenYiQi ameliorates salt-induced hypertensive nephropathy by balancing ADRA1D and SIK1 expression in Dahl salt-sensitive rats. Biomed Pharmacother 2021; 141:111941. [PMID: 34328102 DOI: 10.1016/j.biopha.2021.111941] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/08/2021] [Accepted: 07/14/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Hypertension is a leading risk factor for developing kidney disease. Current single-target antihypertensive drugs are not effective for hypertensive nephropathy, in part due to its less understood mechanism of pathogenesis. We recently showed that QiShenYiQi (QSYQ), a component-based cardiovascular Chinese medicine, is also effective for ischemic stroke. Given the important role of the brain-heart-kidney axis in blood pressure control, we hypothesized that QSYQ may contribute to blood pressure regulation and kidney protection in Dahl salt-sensitive hypertensive rats. METHODS The therapeutic effects of QSYQ on blood pressure and kidney injury in Dahl salt-sensitive rats fed with high salt for 9 weeks were evaluated by tail-cuff blood pressure monitoring, renal histopathological examination and biochemical indicators in urine and serum. RNA-seq was conducted to identify QSYQ regulated genes in hypertensive kidney, and RT-qPCR, immunohistochemistry, and Western blotting analysis were performed to verify the transcriptomics results and validate the purposed mechanisms. RESULTS QSYQ treatment significantly decreased blood pressure in Dahl salt-sensitive hypertensive rats, alleviated renal tissue damage, reduced renal interstitial fibrosis and collagen deposition, and improved renal physiological function. RNA-seq and subsequent bioinformatic analysis showed that the expression of ADRA1D and SIK1 genes were among the most prominently altered by QSYQ in salt-sensitive hypertensive rat kidney. RT-qPCR, immunohistochemistry and Western blotting results confirmed that the mRNA and protein expression levels of alpha-1D adrenergic receptor (ADRA1D) in the kidney tissue of the QSYQ-treated rats were markedly down-regulated, while the mRNA and protein levels of salt inducible kinase 1 (SIK1) were significantly increased. CONCLUSION QSYQ not only lowered blood pressure, but also alleviated renal damage via reducing the expression of ADRA1D and increasing the expression of SIK1 in the kidney of Dahl salt-sensitive hypertensive rats.
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Affiliation(s)
- Hongxia Du
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Guangxu Xiao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Zhifeng Xue
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Zhixiong Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Shuang He
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Xiaoli Du
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China; Inner Mongolia Medical University, Hohhot 010110, China
| | - Zhengchan Zhou
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Linghua Cao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Yule Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Jian Yang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China
| | - Xiaoying Wang
- Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Yan Zhu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China; Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology & Medicine, 220 Dongting Road, TEDA, Tianjin 300457, China.
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9
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Elmezayen AD, Al-Obaidi A, Yelekçi K. Discovery of novel isoform-selective histone deacetylases 5 and 9 inhibitors through combined ligand-based pharmacophore modeling, molecular mocking, and molecular dynamics simulations for cancer treatment. J Mol Graph Model 2021; 106:107937. [PMID: 34049193 DOI: 10.1016/j.jmgm.2021.107937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/13/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022]
Abstract
Class IIa histone deacetylases (HDACs) 5 and 9 play crucial roles in several human disorders such as cancer, making them important targets for drug design. Continuous research is pursed to overcome the cytotoxicity side effect that comes with the currently available broad-spectrum HDACs inhibitors. Herein, common features of active HDACs inhibitors in clinical trials and use have been calculated to generate the best pharmacophore hypothesis. Guner-Henry scoring system was used to validate the generated hypotheses. Hypo1 of HDAC5 and Hypo2 of HDAC9 exhibited the most statistically significance hypotheses. Compounds with fit value of 3 and more were examined by QuickVina 2 docking tool to calculate their binding affinity toward all class IIa HDACs. A total of 6 potential selective compounds were subjected to 100 molecular dynamics (MD) simulation to examine their binding modes. The free binding energy calculations were computed according to the MM-PBSA method. Proposed selective compounds displayed good stability with their targets and thus they may offer potent leads for the designing of HDAC5 and HDAC9 isoform selective inhibitors.
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Affiliation(s)
- Ammar D Elmezayen
- Department of Bioinformatics and Genetics, Faculty of Engineering and Natural Sciences, Kadir Has University, 34083, Istanbul, Turkey.
| | - Anas Al-Obaidi
- Department of Bioinformatics and Genetics, Faculty of Engineering and Natural Sciences, Kadir Has University, 34083, Istanbul, Turkey.
| | - Kemal Yelekçi
- Department of Bioinformatics and Genetics, Faculty of Engineering and Natural Sciences, Kadir Has University, 34083, Istanbul, Turkey.
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10
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Cortassa S, Juhaszova M, Aon MA, Zorov DB, Sollott SJ. Mitochondrial Ca 2+, redox environment and ROS emission in heart failure: Two sides of the same coin? J Mol Cell Cardiol 2021; 151:113-125. [PMID: 33301801 PMCID: PMC7880885 DOI: 10.1016/j.yjmcc.2020.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/05/2020] [Accepted: 11/28/2020] [Indexed: 12/11/2022]
Abstract
Heart failure (HF) is a progressive, debilitating condition characterized, in part, by altered ionic equilibria, increased ROS production and impaired cellular energy metabolism, contributing to variable profiles of systolic and diastolic dysfunction with significant functional limitations and risk of premature death. We summarize current knowledge concerning changes of intracellular Na+ and Ca2+ control mechanisms during the disease progression and their consequences on mitochondrial Ca2+ homeostasis and the shift in redox balance. Absent existing biological data, our computational modeling studies advance a new 'in silico' analysis to reconcile existing opposing views, based on different experimental HF models, regarding variations in mitochondrial Ca2+ concentration that participate in triggering and perpetuating oxidative stress in the failing heart and their impact on cardiac energetics. In agreement with our hypothesis and the literature, model simulations demonstrate the possibility that the heart's redox status together with cytoplasmic Na+ concentrations act as regulators of mitochondrial Ca2+ levels in HF and of the bioenergetics response that will ultimately drive ATP supply and oxidative stress. The resulting model predictions propose future directions to study the evolution of HF as well as other types of heart disease, and to develop novel testable mechanistic hypotheses that may lead to improved therapeutics.
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Affiliation(s)
- Sonia Cortassa
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Magdalena Juhaszova
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Miguel A Aon
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States; Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Dmitry B Zorov
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States; Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.
| | - Steven J Sollott
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
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11
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Patel Y, Joseph J. Sodium Intake and Heart Failure. Int J Mol Sci 2020; 21:ijms21249474. [PMID: 33322108 PMCID: PMC7763082 DOI: 10.3390/ijms21249474] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/05/2020] [Accepted: 12/10/2020] [Indexed: 12/27/2022] Open
Abstract
Sodium is an essential mineral and nutrient used in dietary practices across the world and is important to maintain proper blood volume and blood pressure. A high sodium diet is associated with increased expression of β—myosin heavy chain, decreased expression of α/β—myosin heavy chain, increased myocyte enhancer factor 2/nuclear factor of activated T cell transcriptional activity, and increased salt-inducible kinase 1 expression, which leads to alteration in myocardial mechanical performance. A high sodium diet is also associated with alterations in various proteins responsible for calcium homeostasis and myocardial contractility. Excessive sodium intake is associated with the development of a variety of comorbidities including hypertension, chronic kidney disease, stroke, and cardiovascular diseases. While the American College of Cardiology/American Heart Association/Heart Failure Society of America guidelines recommend limiting sodium intake to both prevent and manage heart failure, the evidence behind such recommendations is unclear. Our review article highlights evidence and underlying mechanisms favoring and contradicting limiting sodium intake in heart failure.
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Affiliation(s)
- Yash Patel
- Lifespan Cardiovascular Institute, Warren Alpert Medical School at Brown University, Providence, RI 02914, USA;
| | - Jacob Joseph
- Department of Medicine, Veterans Affairs Boston Healthcare System, Boston, MA 02132, USA
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Correspondence: ; Tel.: +1-857-203-6841
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12
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Abstract
Primary nociceptors are a heterogeneous class of peripheral somatosensory neurons, responsible for detecting noxious, pruriceptive, and thermal stimuli. These neurons are further divided into several molecularly defined subtypes that correlate with their functional sensory modalities and morphological features. During development, all nociceptors arise from a common pool of embryonic precursors, and then segregate progressively into their mature specialized phenotypes. In this review, we summarize the intrinsic transcriptional programs and extrinsic trophic factor signaling mechanisms that interact to control nociceptor diversification. We also discuss how recent transcriptome profiling studies have significantly advanced the field of sensory neuron development.
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Affiliation(s)
- Suna L Cranfill
- Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Wenqin Luo
- Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
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13
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Capatina AL, Lagos D, Brackenbury WJ. Targeting Ion Channels for Cancer Treatment: Current Progress and Future Challenges. Rev Physiol Biochem Pharmacol 2020; 183:1-43. [PMID: 32865696 DOI: 10.1007/112_2020_46] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ion channels are key regulators of cancer cell pathophysiology. They contribute to a variety of processes such as maintenance of cellular osmolarity and membrane potential, motility (via interactions with the cytoskeleton), invasion, signal transduction, transcriptional activity and cell cycle progression, leading to tumour progression and metastasis. Ion channels thus represent promising targets for cancer therapy. Ion channels are attractive targets because many of them are expressed at the plasma membrane and a broad range of existing inhibitors are already in clinical use for other indications. However, many of the ion channels identified in cancer cells are also active in healthy normal cells, so there is a risk that certain blockers may have off-target effects on normal physiological function. This review describes recent research advances into ion channel inhibitors as anticancer therapeutics. A growing body of evidence suggests that a range of existing and novel Na+, K+, Ca2+ and Cl- channel inhibitors may be effective for suppressing cancer cell proliferation, migration and invasion, as well as enhancing apoptosis, leading to suppression of tumour growth and metastasis, either alone or in combination with standard-of-care therapies. The majority of evidence to date is based on preclinical in vitro and in vivo studies, although there are several examples of ion channel-targeting strategies now reaching early phase clinical trials. Given the strong links between ion channel function and regulation of tumour growth, metastasis and chemotherapy resistance, it is likely that further work in this area will facilitate the development of new therapeutic approaches which will reach the clinic in the future.
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Affiliation(s)
| | - Dimitris Lagos
- Hull York Medical School, York, UK
- York Biomedical Research Institute, University of York, York, UK
| | - William J Brackenbury
- Department of Biology, University of York, York, UK.
- York Biomedical Research Institute, University of York, York, UK.
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14
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Djalinac N, Ljubojevic-Holzer S, Matzer I, Kolesnik E, Jandl K, Lohberger B, Rainer P, Heinemann A, Sedej S, von Lewinski D, Bisping E. The role of stretch, tachycardia and sodium-calcium exchanger in induction of early cardiac remodelling. J Cell Mol Med 2020; 24:8732-8743. [PMID: 32573098 PMCID: PMC7412684 DOI: 10.1111/jcmm.15504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/20/2020] [Accepted: 05/24/2020] [Indexed: 12/14/2022] Open
Abstract
Stretch and tachycardia are common triggers for cardiac remodelling in various conditions, but a comparative characterization of their role in the excitation‐transcription coupling (ETC) and early regulation of gene expression and structural changes is lacking. Here, we show that stretch and tachycardia directly induced hypertrophy of neonatal rat cardiac myocytes and also of non‐myocytes. Both triggers induced similar patterns of hypertrophy but had largely distinct gene expression profiles. ACTA1 served as good hypertrophy marker upon stretch, while RCAN1 was found increased in response to tachycardia in a rate‐dependent fashion. Mechanistically, several calcium‐handling proteins, including the sodium‐calcium exchanger (NCX), contributed to ETC. Phosphorylation of the calcium/calmodulin‐dependent protein kinase II (CaMKII) was elevated and occurred downstream of NCX activation upon tachycardia, but not stretch. Microarray profiling revealed that stretch and tachycardia regulated around 33% and 20% genes in a NCX‐dependent manner, respectively. In conclusion, our data show that hypertrophy induction by stretch and tachycardia is associated with different gene expression profiles with a significant contribution of the NCX.
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Affiliation(s)
- Natasa Djalinac
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | | | - Ingrid Matzer
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Ewald Kolesnik
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Katharina Jandl
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria.,Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Birgit Lohberger
- Department of Orthopedics and Trauma, Medical University of Graz, Graz, Austria
| | - Peter Rainer
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | - Akos Heinemann
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria
| | - Simon Sedej
- Department of Cardiology, Medical University of Graz, Graz, Austria
| | | | - Egbert Bisping
- Department of Cardiology, Medical University of Graz, Graz, Austria
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15
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Pai VP, Adams DS. Preventing Ethanol-Induced Brain and Eye Morphology Defects Using Optogenetics. Bioelectricity 2019; 1:260-272. [PMID: 32685918 DOI: 10.1089/bioe.2019.0008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Embryonic exposure to the teratogen ethanol leads to dysmorphias, including eye and brain morphology defects associated with fetal alcohol spectrum disorder (FASD). Exposure of Xenopus laevis embryos to ethanol leads to similar developmental defects, including brain and eye dysmorphism, confirming our work and the work of others showing Xenopus as a useful system for studies of the brain and eye birth defects associated with FASD. Several targets of ethanol action have been hypothesized, one being regulation of Kir2.1 potassium channel. Endogenous ion fluxes and membrane voltage variation (bioelectric signals) have been shown to be powerful regulators of embryonic cell behaviors that are required for correct brain and eye morphology. Disruptions to these voltage patterns lead to spatially correlated disruptions in gene expression patterns and corresponding morphology. Materials and Methods: Here, we use controlled membrane voltage modulation to determine when and where voltage modulation is sufficient to rescue ethanol-induced brain and eye defects in Xenopus embryos. Results: We found (1) that modulating membrane voltage using light activation of the channelrhodopsin-2 variant D156A rescues ethanol exposed embryos, resulting in normal brain and eye morphologies; (2) hyperpolarization is required for the full duration of ethanol exposure; (3) hyperpolarization of only superficial ectoderm is sufficient for this effect; and(4) the rescue effect acts at a distance. Conclusions: These results, particularly the last, raise the exciting possibility of using bioelectric modulation to treat ethanol-induced brain and eye birth defects, possibly with extant ion channel drugs already prescribed to pregnant women. This may prove to be a simple and cost-effective strategy for reducing the impact of FASD.
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Affiliation(s)
- Vaibhav P Pai
- Department of Biology, Tufts Center for Regenerative and Developmental Biology, Tufts University, Medford, Massachusetts
| | - Dany Spencer Adams
- Department of Biology, Tufts University, Medford, Massachusetts.,Ion Diagnostics LLC, Watertown, Massachusetts
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16
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Christa M, Weng AM, Geier B, Wörmann C, Scheffler A, Lehmann L, Oberberger J, Kraus BJ, Hahner S, Störk S, Klink T, Bauer WR, Hammer F, Köstler H. Increased myocardial sodium signal intensity in Conn's syndrome detected by 23Na magnetic resonance imaging. Eur Heart J Cardiovasc Imaging 2019; 20:263-270. [PMID: 30307545 PMCID: PMC6383057 DOI: 10.1093/ehjci/jey134] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/11/2018] [Accepted: 08/29/2018] [Indexed: 11/12/2022] Open
Abstract
AIMS Sodium intake has been linked to left ventricular hypertrophy independently of blood pressure, but the underlying mechanisms remain unclear. Primary hyperaldosteronism (PHA), a condition characterized by tissue sodium overload due to aldosterone excess, causes accelerated left ventricular hypertrophy compared to blood pressure matched patients with essential hypertension. We therefore hypothesized that the myocardium constitutes a novel site capable of sodium storage explaining the missing link between sodium and left ventricular hypertrophy. METHODS AND RESULTS Using 23Na magnetic resonance imaging, we investigated relative sodium signal intensities (rSSI) in the heart, calf muscle, and skin in 8 PHA patients (6 male, median age 55 years) and 12 normotensive healthy controls (HC) (8 male, median age 61 years). PHA patients had a higher mean systolic 24 h ambulatory blood pressure [152 (140; 163) vs. 125 (122; 130) mmHg, P < 0.001] and higher left ventricular mass index [71.0 (63.5; 106.8) vs. 55.0 (50.3; 66.8) g/m2, P = 0.037] than HC. Compared to HC, PHA patients exhibited significantly higher rSSI in the myocardium [0.31 (0.26; 0.34) vs. 0.24 (0.20; 0.27); P = 0.007], calf muscle [0.19 (0.16; 0.22) vs. 0.14 (0.13; 0.15); P = 0.001] and skin [0.28 (0.25; 0.33) vs. 0.19 (0.17; 0.26); P = 0.014], reflecting a difference of +27%, +38%, and +39%, respectively. Treatment of PHA resulted in significant reductions of the rSSI in the myocardium, calf muscle and skin by -13%, -27%, and -29%, respectively. CONCLUSION Myocardial tissue rSSI is increased in PHA patients and treatment of aldosterone excess effectively reduces rSSI, thus establishing the myocardium as a novel site of sodium storage in addition to skeletal muscle and skin.
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Affiliation(s)
- Martin Christa
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Andreas M Weng
- Department of Diagnostic and Interventional Radiology, University of Würzburg, Würzburg, Germany
| | - Bettina Geier
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany
| | - Caroline Wörmann
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany
| | - Anne Scheffler
- Institute of Pharmacy and Food Chemistry, Chair of Food Chemistry, University of Würzburg, Würzburg, Germany
| | - Leane Lehmann
- Institute of Pharmacy and Food Chemistry, Chair of Food Chemistry, University of Würzburg, Würzburg, Germany
| | - Johannes Oberberger
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Bettina J Kraus
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefanie Hahner
- Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Störk
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Thorsten Klink
- Department of Diagnostic and Interventional Radiology, University of Würzburg, Würzburg, Germany
| | - Wolfgang R Bauer
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Fabian Hammer
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Internal Medicine, University Greifswald, Greifswald, Germany
| | - Herbert Köstler
- Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany.,Department of Diagnostic and Interventional Radiology, University of Würzburg, Würzburg, Germany
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17
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Salt Inducible Kinase Signaling Networks: Implications for Acute Kidney Injury and Therapeutic Potential. Int J Mol Sci 2019; 20:ijms20133219. [PMID: 31262033 PMCID: PMC6651122 DOI: 10.3390/ijms20133219] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/26/2019] [Accepted: 06/27/2019] [Indexed: 02/06/2023] Open
Abstract
A number of signal transduction pathways are activated during Acute Kidney Injury (AKI). Of particular interest is the Salt Inducible Kinase (SIK) signaling network, and its effects on the Renal Proximal Tubule (RPT), one of the primary targets of injury in AKI. The SIK1 network is activated in the RPT following an increase in intracellular Na+ (Na+in), resulting in an increase in Na,K-ATPase activity, in addition to the phosphorylation of Class IIa Histone Deacetylases (HDACs). In addition, activated SIKs repress transcriptional regulation mediated by the interaction between cAMP Regulatory Element Binding Protein (CREB) and CREB Regulated Transcriptional Coactivators (CRTCs). Through their transcriptional effects, members of the SIK family regulate a number of metabolic processes, including such cellular processes regulated during AKI as fatty acid metabolism and mitochondrial biogenesis. SIKs are involved in regulating a number of other cellular events which occur during AKI, including apoptosis, the Epithelial to Mesenchymal Transition (EMT), and cell division. Recently, the different SIK kinase isoforms have emerged as promising drug targets, more than 20 new SIK2 inhibitors and activators having been identified by MALDI-TOF screening assays. Their implementation in the future should prove to be important in such renal disease states as AKI.
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18
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Beauverger P, Ozoux ML, Bégis G, Glénat V, Briand V, Philippo MC, Daveu C, Tavares G, Roy S, Corbier A, Briand P, Dorchies O, Bauchet AL, Nicolai E, Duclos O, Tamarelle D, Pruniaux MP, Muslin AJ, Janiak P. Reversion of cardiac dysfunction by a novel orally available calcium/calmodulin-dependent protein kinase II inhibitor, RA306, in a genetic model of dilated cardiomyopathy. Cardiovasc Res 2019; 116:329-338. [DOI: 10.1093/cvr/cvz097] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 12/10/2018] [Accepted: 04/04/2019] [Indexed: 12/18/2022] Open
Affiliation(s)
- Philippe Beauverger
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Marie-Laure Ozoux
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Guillaume Bégis
- Integrated Drug Discovery platform, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Valérie Glénat
- Integrated Drug Discovery platform, Sanofi R&D, 13 quai Jules Guesde, Vitry-sur-Seine Cedex, France
| | - Véronique Briand
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Marie-Claire Philippo
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Cyril Daveu
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Georges Tavares
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Sébastien Roy
- Integrated Drug Discovery platform, Sanofi R&D, 13 quai Jules Guesde, Vitry-sur-Seine Cedex, France
| | - Alain Corbier
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Pascale Briand
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Olivier Dorchies
- Preclinical Safety platform, Sanofi R&D, 13 quai Jules Guesde, Vitry-sur-Seine Cedex, France
| | - Anne-Laure Bauchet
- Translational Medicine and Early Development platform, Sanofi R&D, 13 quai Jules Guesde, Vitry-sur-Seine Cedex, France
| | - Eric Nicolai
- Integrated Drug Discovery platform, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Olivier Duclos
- Integrated Drug Discovery platform, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Dorothée Tamarelle
- Biostatistics and Programming platform, Sanofi R&D, 13 quai Jules Guesde, Vitry-sur-Seine Cedex, France
| | - Marie-Pierre Pruniaux
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
| | - Anthony J Muslin
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 640 Memorial Drive, MA, Cambridge, USA
| | - Philip Janiak
- Cardiovascular&Metabolism Therapeutic Area, Sanofi R&D, 1 avenue Pierre Brossolette, Chilly-Mazarin, France
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19
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Pires NM, Igreja B, Serrão MP, Matias EF, Moura E, António T, Campos FL, Brion L, Bertorello A, Soares-da-Silva P. Acute salt loading induces sympathetic nervous system overdrive in mice lacking salt-inducible kinase 1 (SIK1). Hypertens Res 2019; 42:1114-1124. [DOI: 10.1038/s41440-019-0249-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 11/29/2018] [Accepted: 01/22/2019] [Indexed: 01/11/2023]
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20
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Pääkkö TJW, Perkiömäki JS, Silaste ML, Bloigu R, Huikuri HV, Antero Kesäniemi Y, Ukkola OH. Dietary sodium intake is associated with long-term risk of new-onset atrial fibrillation. Ann Med 2018; 50:694-703. [PMID: 30442022 DOI: 10.1080/07853890.2018.1546054] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The association between dietary salt intake and hypertension has been well documented. We evaluated the association between dietary sodium intake and the incidence of new-onset atrial fibrillation (AF) during a mean follow-up of 19 years among 716 subjects from the Oulu Project Elucidating Risk of Atherosclerosis (OPERA) cohort. MATERIAL AND METHODS Dietary sodium intake was evaluated from a seven-day food record. The diagnosis of AF (atrial flutter included) was made if ICD-10 code I48 was listed in the hospital discharge records during follow-up. RESULTS In the Kaplan-Meier curves, when quartiles of sodium consumption were considered, the cumulative proportional probabilities for AF events were higher in the highest (4th) quartile (16.8%) than in the lower quartiles (1st 6.7%, 2nd 7.3% and 3rd 10.6%) (p = .003). In the Cox regression analysis, sodium consumption (g/1000 kcal) as a continuous variable was independently associated with AF events (Hazard Ratio = 2.1 (95% CI, 1.2 to 3.7) p =.015) when age, body mass index, smoking (pack-years), office systolic blood pressure, left atrium diameter, left ventricular mass index and the use of any antihypertensive therapy were added as covariates. CONCLUSIONS These findings indicate that sodium intake is associated with the long-term risk of new-onset AF. Further confirmatory studies are needed. Key messages Sodium consumption correlated positively with CV risk factors: age, smoking, SBP, BMI and LDL-cholesterol. When quartiles of sodium consumption were considered, the AF incidence was higher in the highest quartile compared to lower quartiles. Sodium consumption as a continuous variable was independently associated with AF events when age, BMI, smoking, SBP, LAD, LVMI and the use of any antihypertensive therapy were considered.
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Affiliation(s)
- Tero Juho Wilhelm Pääkkö
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Juha S Perkiömäki
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Marja-Leena Silaste
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Risto Bloigu
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Heikki V Huikuri
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Y Antero Kesäniemi
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
| | - Olavi H Ukkola
- a Medical Research Center Oulu , Oulu University Hospital and University of Oulu , Oulu , Finland
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21
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Taub M. Gene Level Regulation of Na,K-ATPase in the Renal Proximal Tubule Is Controlled by Two Independent but Interacting Regulatory Mechanisms Involving Salt Inducible Kinase 1 and CREB-Regulated Transcriptional Coactivators. Int J Mol Sci 2018; 19:E2086. [PMID: 30021947 PMCID: PMC6073390 DOI: 10.3390/ijms19072086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 12/26/2022] Open
Abstract
For many years, studies concerning the regulation of Na,K-ATPase were restricted to acute regulatory mechanisms, which affected the phosphorylation of Na,K-ATPase, and thus its retention on the plasma membrane. However, in recent years, this focus has changed. Na,K-ATPase has been established as a signal transducer, which becomes part of a signaling complex as a consequence of ouabain binding. Na,K-ATPase within this signaling complex is localized in caveolae, where Na,K-ATPase has also been observed to regulate Inositol 1,4,5-Trisphosphate Receptor (IP3R)-mediated calcium release. This latter association has been implicated as playing a role in signaling by G Protein Coupled Receptors (GPCRs). Here, the consequences of signaling by renal effectors that act via such GPCRs are reviewed, including their regulatory effects on Na,K-ATPase gene expression in the renal proximal tubule (RPT). Two major types of gene regulation entail signaling by Salt Inducible Kinase 1 (SIK1). On one hand, SIK1 acts so as to block signaling via cAMP Response Element (CRE) Binding Protein (CREB) Regulated Transcriptional Coactivators (CRTCs) and on the other hand, SIK1 acts so as to stimulate signaling via the Myocyte Enhancer Factor 2 (MEF2)/nuclear factor of activated T cell (NFAT) regulated genes. Ultimate consequences of these pathways include regulatory effects which alter the rate of transcription of the Na,K-ATPase β1 subunit gene atp1b1 by CREB, as well as by MEF2/NFAT.
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Affiliation(s)
- Mary Taub
- Biochemistry Dept., Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, 955 Main Street, Suite 4902, Buffalo, NY 14203, USA.
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22
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Berger RCM, Benetti A, Girardi ACC, Forechi L, de Oliveira RM, Vassallo PF, Mill JG. Influence of Long-Term Salt Diets on Cardiac Ca2+ Handling and Contractility Proteins in Hypertensive Rats. Am J Hypertens 2018. [PMID: 29518186 DOI: 10.1093/ajh/hpy023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND High sodium intake contributes to the pathogenesis of hypertension and adversely affects cardiac function. Conversely, sodium reduction is associated with a blood pressure decrease and improved cardiovascular function. However, the mechanisms that underlie the cardiac effects induced by salt intake in hypertension have not been fully elucidated. Ca2+ handling is critical for efficient myocardial function; thus, we aimed to investigate the long-term effects of diets with different salt contents on cardiac function and Ca2+ handling proteins in spontaneously hypertensive rats (SHRs). METHODS Cardiac function was evaluated by catheterization. Ca2+ handling and contractile proteins were evaluated by immunoblotting in hearts from SHRs fed for 6 months with diets containing high (HS, 3%), low (LS, 0.03%), or normal salt content (NS, 0.3%). Diets were introduced immediately after weaning. Tail cuff pletismography was assessed at the 3rd and 7th months of follow-up. RESULTS Compared to the NS group, the HS group exhibited worsened hypertension, increased cardiac expression of β-myosin heavy chain (MHC), a decreased α/β-MHC ratio and reduced expression of both phospholamban (PLB) and Na+/Ca2+ exchanger (NCX). LS intake attenuated the blood pressure increase and left ventricle hypertrophy, slightly decreased the cardiac contractility and relaxation index, and increased the α/β-MHC ratio. These effects were accompanied by increased cardiac PLB expression and decreased Ca2+ L-type channel and NCX expression. CONCLUSIONS These findings indicate that the modulation of Ca2+ handling may be one of the molecular mechanisms underlying the effect of salt intake on myocardial function in hypertension.
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Affiliation(s)
| | - Acaris Benetti
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, São Paulo, Brazil
| | | | - Ludimila Forechi
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | | | - Paula Frizera Vassallo
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
| | - José Geraldo Mill
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Espirito Santo, Brazil
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23
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Minett MS, Pereira V, Sikandar S, Matsuyama A, Lolignier S, Kanellopoulos AH, Mancini F, Iannetti GD, Bogdanov YD, Santana-Varela S, Millet Q, Baskozos G, MacAllister R, Cox JJ, Zhao J, Wood JN. Endogenous opioids contribute to insensitivity to pain in humans and mice lacking sodium channel Nav1.7. Nat Commun 2015; 6:8967. [PMID: 26634308 PMCID: PMC4686868 DOI: 10.1038/ncomms9967] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 10/21/2015] [Indexed: 12/14/2022] Open
Abstract
Loss-of-function mutations in the SCN9A gene encoding voltage-gated sodium channel Nav1.7 cause congenital insensitivity to pain in humans and mice. Surprisingly, many potent selective antagonists of Nav1.7 are weak analgesics. We investigated whether Nav1.7, as well as contributing to electrical signalling, may have additional functions. Here we report that Nav1.7 deletion has profound effects on gene expression, leading to an upregulation of enkephalin precursor Penk mRNA and met-enkephalin protein in sensory neurons. In contrast, Nav1.8-null mutant sensory neurons show no upregulated Penk mRNA expression. Application of the opioid antagonist naloxone potentiates noxious peripheral input into the spinal cord and dramatically reduces analgesia in both female and male Nav1.7-null mutant mice, as well as in a human Nav1.7-null mutant. These data suggest that Nav1.7 channel blockers alone may not replicate the analgesic phenotype of null mutant humans and mice, but may be potentiated with exogenous opioids.
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Affiliation(s)
- Michael S. Minett
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Vanessa Pereira
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Shafaq Sikandar
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Ayako Matsuyama
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Stéphane Lolignier
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | | | - Flavia Mancini
- Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK
| | - Gian D. Iannetti
- Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK
| | - Yury D. Bogdanov
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Sonia Santana-Varela
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Queensta Millet
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Giorgios Baskozos
- Institute of Structural and Molecular Biology, UCL, London WC1E 6BT, UK
| | | | - James J. Cox
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - Jing Zhao
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
| | - John N. Wood
- Molecular Nociception Group, WIBR, University College London, Gower Street, London WC1E 6BT, UK
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Taub M, Garimella S, Kim D, Rajkhowa T, Cutuli F. Renal proximal tubule Na,K-ATPase is controlled by CREB-regulated transcriptional coactivators as well as salt-inducible kinase 1. Cell Signal 2015; 27:2568-78. [PMID: 26432356 PMCID: PMC4696386 DOI: 10.1016/j.cellsig.2015.09.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/17/2015] [Accepted: 09/28/2015] [Indexed: 01/11/2023]
Abstract
Sodium reabsorption by the kidney is regulated by locally produced natriuretic and anti-natriuretic factors, including dopamine and norepinephrine, respectively. Previous studies indicated that signaling events initiated by these natriuretic and anti-natriuretic factors achieve their effects by altering the phosphorylation of Na,K-ATPase in the renal proximal tubule, and that protein kinase A (PKA) and calcium-mediated signaling pathways are involved. The same signaling pathways also control the transcription of the Na,K-ATPase β subunit gene atp1b1 in renal proximal tubule cells. In this report, evidence is presented that (1) both the recently discovered cAMP-regulated transcriptional coactivators (CRTCs) and salt-inducible kinase 1 (SIK1) contribute to the transcriptional regulation of atp1b1 in renal proximal tubule (RPT) cells and (2) renal effectors, including norepinephrine, dopamine, prostaglandins, and sodium, play a role. Exogenously expressed CRTCs stimulate atp1b1 transcription. Evidence for a role of endogenous CRTCs includes the loss of transcriptional regulation of atp1b1 by a dominant-negative CRTC, as well as by a CREB mutant, with an altered CRTC binding site. In a number of experimental systems, SIK phosphorylates CRTCs, which are then sequestered in the cytoplasm, preventing their nuclear effects. Consistent with such a role of SIK in primary RPT cells, atp1b1 transcription increased in the presence of a dominant-negative SIK1, and in addition, regulation by dopamine, norepinephrine, and monensin was disrupted by a dominant-negative SIK1. These latter observations can be explained if SIK1 is phosphorylated and inactivated in the presence of these renal effectors. Our results support the hypothesis that Na,K-ATPase in the renal proximal tubule is regulated at the transcriptional level via SIK1 and CRTCs by renal effectors, in addition to the previously reported control of the phosphorylation of Na,K-ATPase.
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Affiliation(s)
- Mary Taub
- Biochemistry Department,School of Medicine and Biomedical SciencesUniversity at Buffalo,140 Farber Hall, 3435 Main Street,Buffalo, NY 14214, USA.
| | - Sudha Garimella
- Biochemistry Department,School of Medicine and Biomedical SciencesUniversity at Buffalo,140 Farber Hall, 3435 Main Street,Buffalo, NY 14214, USA
| | - Dongwook Kim
- Biochemistry Department,School of Medicine and Biomedical SciencesUniversity at Buffalo,140 Farber Hall, 3435 Main Street,Buffalo, NY 14214, USA
| | - Trivikram Rajkhowa
- Biochemistry Department,School of Medicine and Biomedical SciencesUniversity at Buffalo,140 Farber Hall, 3435 Main Street,Buffalo, NY 14214, USA
| | - Facundo Cutuli
- Biochemistry Department,School of Medicine and Biomedical SciencesUniversity at Buffalo,140 Farber Hall, 3435 Main Street,Buffalo, NY 14214, USA
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25
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Bertorello AM, Pires N, Igreja B, Pinho MJ, Vorkapic E, Wågsäter D, Wikström J, Behrendt M, Hamsten A, Eriksson P, Soares-da-Silva P, Brion L. Increased Arterial Blood Pressure and Vascular Remodeling in Mice Lacking Salt-Inducible Kinase 1 (SIK1). Circ Res 2015; 116:642-52. [DOI: 10.1161/circresaha.116.304529] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Rationale:
In human genetic studies a single nucleotide polymorphism within the salt-inducible kinase 1 (
SIK1
) gene was associated with hypertension. Lower SIK1 activity in vascular smooth muscle cells (VSMCs) leads to decreased sodium-potassium ATPase activity, which associates with increased vascular tone. Also, SIK1 participates in a negative feedback mechanism on the transforming growth factor-β1 signaling and downregulation of SIK1 induces the expression of extracellular matrix remodeling genes.
Objective:
To evaluate whether reduced expression/activity of SIK1 alone or in combination with elevated salt intake could modify the structure and function of the vasculature, leading to higher blood pressure.
Methods and Results:
SIK1 knockout (
sik1
−/−
) and wild-type (
sik1
+/+
) mice were challenged to a normal- or chronic high-salt intake (1% NaCl). Under normal-salt conditions, the
sik1
−/−
mice showed increased collagen deposition in the aorta but similar blood pressure compared with the
sik1
+/+
mice. During high-salt intake, the
sik1
+/+
mice exhibited an increase in SIK1 expression in the VSMCs layer of the aorta, whereas the
sik1
−/−
mice exhibited upregulated transforming growth factor-β1 signaling and increased expression of endothelin-1 and genes involved in VSMC contraction, higher systolic blood pressure, and signs of cardiac hypertrophy. In vitro knockdown of SIK1 induced upregulation of collagen in aortic adventitial fibroblasts and enhanced the expression of contractile markers and of endothelin-1 in VSMCs.
Conclusions:
Vascular SIK1 activation might represent a novel mechanism involved in the prevention of high blood pressure development triggered by high-salt intake through the modulation of the contractile phenotype of VSMCs via transforming growth factor-β1-signaling inhibition.
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Affiliation(s)
- Alejandro M. Bertorello
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Nuno Pires
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Bruno Igreja
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Maria João Pinho
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Emina Vorkapic
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Dick Wågsäter
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Johannes Wikström
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Margareta Behrendt
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Anders Hamsten
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Per Eriksson
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Patricio Soares-da-Silva
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
| | - Laura Brion
- From the Department of Medicine, Membrane Signaling Networks, Karolinska Institutet, Stockholm, Sweden (A.M.B., L.B.); Department of Research and Development, Bial-Portela & Cª, S.A., S. Mamede do Coronado, Portugal (N.P., B.I., P.S.-d.-S.); MedInUP-Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal (M.J.P., P.S.-d.-S.); Department of Medicine, Cardiovascular Genetics and Genomics, Karolinska Institutet, Stockholm, Sweden (E.V., D.W., A.H., P.E.); Division
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26
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Mathias RA, Guise AJ, Cristea IM. Post-translational modifications regulate class IIa histone deacetylase (HDAC) function in health and disease. Mol Cell Proteomics 2015; 14:456-70. [PMID: 25616866 DOI: 10.1074/mcp.o114.046565] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Class IIa histone deacetylases (HDACs4, -5, -7, and -9) modulate the physiology of the human cardiovascular, musculoskeletal, nervous, and immune systems. The regulatory capacity of this family of enzymes stems from their ability to shuttle between nuclear and cytoplasmic compartments in response to signal-driven post-translational modification. Here, we review the current knowledge of modifications that control spatial and temporal histone deacetylase functions by regulating subcellular localization, transcriptional functions, and cell cycle-dependent activity, ultimately impacting on human disease. We discuss the contribution of these modifications to cardiac and vascular hypertrophy, myoblast differentiation, neuronal cell survival, and neurodegenerative disorders.
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Affiliation(s)
- Rommel A Mathias
- From the ‡Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544; §Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, 3086, Australia
| | - Amanda J Guise
- From the ‡Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544
| | - Ileana M Cristea
- From the ‡Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544;
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27
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Popov S, Takemori H, Tokudome T, Mao Y, Otani K, Mochizuki N, Pires N, Pinho MJ, Franco-Cereceda A, Torielli L, Ferrandi M, Hamsten A, Soares-da-Silva P, Eriksson P, Bertorello AM, Brion L. Lack of salt-inducible kinase 2 (SIK2) prevents the development of cardiac hypertrophy in response to chronic high-salt intake. PLoS One 2014; 9:e95771. [PMID: 24752134 PMCID: PMC3994160 DOI: 10.1371/journal.pone.0095771] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 03/28/2014] [Indexed: 01/01/2023] Open
Abstract
Cardiac left ventricle hypertrophy (LVH) constitutes a major risk factor for heart failure. Although LVH is most commonly caused by chronic elevation in arterial blood pressure, reduction of blood pressure to normal levels does not always result in regression of LVH, suggesting that additional factors contribute to the development of this pathology. We tested whether genetic preconditions associated with the imbalance in sodium homeostasis could trigger the development of LVH without concomitant increases in blood pressure. The results showed that the presence of a hypertensive variant of α-adducin gene in Milan rats (before they become hypertensive) resulted in elevated expression of genes associated with LVH, and of salt-inducible kinase 2 (SIK2) in the left ventricle (LV). Moreover, the mRNA expression levels of SIK2, α-adducin, and several markers of cardiac hypertrophy were positively correlated in tissue biopsies obtained from human hearts. In addition, we found in cardiac myocytes that α-adducin regulates the expression of SIK2, which in turn mediates the effects of adducin on hypertrophy markers gene activation. Furthermore, evidence that SIK2 is critical for the development of LVH in response to chronic high salt diet (HS) was obtained in mice with ablation of the sik2 gene. Increases in the expression of genes associated with LVH, as well as increases in LV wall thickness upon HS, occurred only in sik2+/+ but not in sik2−/− mice. Thus LVH triggered by HS or the presence of a genetic variant of α-adducin requires SIK2 and is independent of elevated blood pressure. Inhibitors of SIK2 may constitute part of a novel therapeutic regimen aimed at prevention/regression of LVH.
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Affiliation(s)
- Sergej Popov
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolism, National Institute for Biomedical Innovation, Osaka, Japan
| | - Takeshi Tokudome
- Department of Biochemistry, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Yuanjie Mao
- Department of Biochemistry, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Kentaro Otani
- Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Naoki Mochizuki
- Cell Biology, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Nuno Pires
- BIAL - Portela & C, S.A., S. Mamede do Coronado, Portugal
| | - Maria João Pinho
- MedInUP - Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
| | - Anders Franco-Cereceda
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Lucia Torielli
- Prassis Sigma-Tau Research Institute, Settimo Milanese, Milan, Italy
| | - Mara Ferrandi
- Prassis Sigma-Tau Research Institute, Settimo Milanese, Milan, Italy
| | - Anders Hamsten
- Cardiovascular Genetics and Genomics, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Patricio Soares-da-Silva
- BIAL - Portela & C, S.A., S. Mamede do Coronado, Portugal
- MedInUP - Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
| | - Per Eriksson
- Cardiovascular Genetics and Genomics, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Alejandro M. Bertorello
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Laura Brion
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
- * E-mail:
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28
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Katoh D, Hongo K, Ito K, Yoshino T, Kayama Y, Kawai M, Date T, Yoshimura M. Corticosteroids increase intracellular free sodium ion concentration via glucocorticoid receptor pathway in cultured neonatal rat cardiomyocytes. INTERNATIONAL JOURNAL OF CARDIOLOGY. HEART & VESSELS 2014; 3:49-56. [PMID: 29450170 PMCID: PMC5801272 DOI: 10.1016/j.ijchv.2014.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 03/03/2014] [Indexed: 11/27/2022]
Abstract
Background Glucocorticoids as well as mineralocorticoid have been shown to play essential roles in the regulation of electrical and mechanical activities in cardiomyocytes. Excess of these hormones is an independent risk factor for cardiovascular disease. Intracellular sodium ([Na+]i) kinetics are involved in cardiac diseases, including ischemia, heart failure and hypertrophy. However, intrinsic mediators that regulate [Na+]i in cardiomyocytes have not been widely discussed. Moreover, the quantitative estimation of altered [Na+]i in cultured cardiomyocytes and the association between the level of [Na+]i and the severity of pathological conditions, such as hypertrophy, have not been precisely reported. Methods and results We herein demonstrate the quantitative estimation of [Na+]i in cultured neonatal rat cardiomyocytes following 24 h of treatment with corticosterone, aldosterone and dexamethasone. The physiological concentration of glucocorticoids increased [Na+]i up to approximately 2.5 mM (an almost 1.5-fold increase compared to the control) in a dose-dependent manner; this effect was blocked by a glucocorticoid receptor (GR) antagonist but not a mineralocorticoid receptor antagonist. Furthermore, glucocorticoids induced cardiac hypertrophy, and the hypertrophic gene expression was positively and significantly correlated with the level of [Na+]i. Dexamethasone induced the upregulation of Na+/Ca2 + exchanger 1 at the mRNA and protein levels. Conclusions The physiological concentration of glucocorticoids increases [Na+]i via GR. The dexamethasone-induced upregulation of NCX1 is partly involved in the glucocorticoid-induced alteration of [Na+]i in cardiomyocytes. These results provide new insight into the mechanisms by which glucocorticoid excess within a physiological concentration contributes to the development of cardiac pathology.
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Affiliation(s)
- Daisuke Katoh
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Kenichi Hongo
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Keiichi Ito
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Takuya Yoshino
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yosuke Kayama
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Makoto Kawai
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Taro Date
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Michihiro Yoshimura
- Division of Cardiology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
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29
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Regulation of the cardiac Na⁺/H⁺ exchanger in health and disease. J Mol Cell Cardiol 2013; 61:68-76. [PMID: 23429007 DOI: 10.1016/j.yjmcc.2013.02.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 02/07/2013] [Accepted: 02/11/2013] [Indexed: 11/21/2022]
Abstract
The Na(+) gradient produced across the cardiac sarcolemma by the ATP-dependent Na(+)-pump is a constant source of energy for Na(+)-dependent transporters. The plasma membrane Na(+)/H(+) exchanger (NHE) is one such secondary active transporter, regulating intracellular pH, Na(+) concentration, and cell volume. NHE1, the major isoform found in the heart, is activated in response to a variety of stimuli such as hormones and mechanical stress. This important characteristic of NHE1 is intimately linked to heart diseases, including maladaptive cardiac hypertrophy and subsequent heart failure, as well as acute ischemic-reperfusion injury. NHE1 activation results in elevation of pH and intracellular Na(+) concentration, which potentially enhance downstream signaling cascades in the myocardium. Therefore, in addition to determining the mechanism underlying regulation of NHE1 activity, it is important to understand how the ionic signal produced by NHE1 is transmitted to the downstream targets. Extensive studies have identified many accessory factors that interact with NHE1. Here, we have summarized the recent progress on understanding the molecular mechanism underlying NHE1 regulation and have shown a possible signaling pathway leading to cardiac remodeling, which is initiated from NHE1. This article is part of a Special Issue entitled "Na(+) Regulation in Cardiac Myocytes".
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30
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Finsterwald C, Carrard A, Martin JL. Role of salt-inducible kinase 1 in the activation of MEF2-dependent transcription by BDNF. PLoS One 2013; 8:e54545. [PMID: 23349925 PMCID: PMC3551851 DOI: 10.1371/journal.pone.0054545] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 12/14/2012] [Indexed: 01/02/2023] Open
Abstract
Substantial evidence supports a role for myocyte enhancer factor 2 (MEF2)-mediated transcription in neuronal survival, differentiation and synaptic function. In developing neurons, it has been shown that MEF2-dependent transcription is regulated by neurotrophins. Despite these observations, little is known about the cellular mechanisms by which neurotrophins activate MEF2 transcriptional activity. In this study, we examined the role of salt-inducible kinase 1 (SIK1), a member of the AMP-activated protein kinase (AMPK) family, in the regulation of MEF2-mediated transcription by the neurotrophin brain-derived neurotrophic factor (BDNF). We show that BDNF increases the expression of SIK1 in primary cultures of rat cortical neurons through the extracellular signal-regulated kinase 1/2 (ERK1/2)-signaling pathway. In addition to inducing SIK1 expression, BDNF triggers the phosphorylation of SIK1 at Thr182 and its translocation from the cytoplasm to the nucleus of cortical neurons. The effects of BDNF on the expression, phosphorylation and, translocation of SIK1 are followed by the phosphorylation and nuclear export of histone deacetylase 5 (HDAC5). Blockade of SIK activity with a low concentration of staurosporine abolished BDNF-induced phosphorylation and nuclear export of HDAC5 in cortical neurons. Importantly, stimulation of HDAC5 phosphorylation and nuclear export by BDNF is accompanied by the activation of MEF2-mediated transcription, an effect that is suppressed by staurosporine. Consistent with these data, BDNF induces the expression of the MEF2 target genes Arc and Nur77, in a staurosporine-sensitive manner. In further support of the role of SIK1 in the regulation of MEF2-dependent transcription by BDNF, we found that expression of wild-type SIK1 or S577A SIK1, a mutated form of SIK1 which is retained in the nucleus of transfected cells, is sufficient to enhance MEF2 transcriptional activity in cortical neurons. Together, these data identify a previously unrecognized mechanism by which SIK1 mediates the activation of MEF2-dependent transcription by BDNF.
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Affiliation(s)
- Charles Finsterwald
- Center for Psychiatric Neuroscience, Department of Psychiatry-CHUV, Prilly-Lausanne, Switzerland
| | - Anthony Carrard
- Center for Psychiatric Neuroscience, Department of Psychiatry-CHUV, Prilly-Lausanne, Switzerland
| | - Jean-Luc Martin
- Center for Psychiatric Neuroscience, Department of Psychiatry-CHUV, Prilly-Lausanne, Switzerland
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