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Shabnaz S, Nguyen TN, Williams R, Rubinstein SM, Garrett TJ, Tantawy M, Fradley MG, Alomar ME, Shain KH, Baz RC, Lenihan D, Cornell RF, Lu Q, Gong Y. Metabolomic signatures of carfilzomib-related cardiotoxicity in patients with multiple myeloma. Clin Transl Sci 2024; 17:e13828. [PMID: 38783568 PMCID: PMC11116757 DOI: 10.1111/cts.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/12/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
As a treatment for relapsed or refractory multiple myeloma (MM), carfilzomib has been associated with a significant risk of cardiovascular adverse events (CVAE). The goals of our study were to evaluate the metabolomic profile of MM patients to identify those at high risk prior to carfilzomib treatment and to explore the mechanisms of carfilzomib-CVAE to inform potential strategies to protect patients from this cardiotoxicity. Global metabolomic profiling was performed on the baseline and post-baseline plasma samples of 60 MM patients treated with carfilzomib-based therapy, including 31 who experienced CVAE, in a prospective cohort study. Baseline metabolites and post-baseline/baseline metabolite ratios that differ between the CVAE and no-CVAE patients were identified using unadjusted and adjusted methods. A baseline metabolomic risk score was created to stratify patients. We observed a lower abundance of tauroursodeoxycholic acid (T-UDCA) in CVAE patients at baseline (odds ratio [OR] = 0.47, 95% confidence interval [CI] = 0.21-0.94, p = 0.044) compared with the no-CVAE patients. A metabolite risk score was able to stratify patients into three risk groups. The area under the receiver-operating curve of the model with clinical predictors and metabolite risk score was 0.93. Glycochenodeoxycholic acid (OR = 0.56, 95% CI = 0.31-0.87, p = 0.023) was significantly lower in post-baseline/baseline ratios of CVAE patients compared with no-CVAE patients. Following metabolomic analysis, we created a baseline metabolite risk score that can stratify MM patients into different risk groups. The result also provided intriguing clues about the mechanism of carfilzomib-CVAE and potential cardioprotective strategies.
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Affiliation(s)
- Samia Shabnaz
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Trang N Nguyen
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Roy Williams
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Samuel M Rubinstein
- Department of Medicine, Division of Hematology, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Marwa Tantawy
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Michael G Fradley
- Cardio-Oncology Center of Excellence, Division of Cardiology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mohammed E Alomar
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Kenneth H Shain
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Rachid C Baz
- Department of Malignant Hematology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, USA
| | - Daniel Lenihan
- Cape Cardiology Group, Saint Francis Medical Center, Cape Girardeau, Missouri, USA
| | - Robert F Cornell
- Department of Medicine, Division of Hematology and Oncology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Qing Lu
- Department of Biostatistics, College of Public Health and Health Professions & College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Yan Gong
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
- Cardio-Oncology Working Group, UF Health Cancer Center, Gainesville, Florida, USA
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Li FJ, Fu S, Ye H, Hu YH, Chen J, Privratsky JR, Yu W, Dong F, Reiter RJ, Dong M, Guo J, Ren J. Metallothionein Alleviates Glutathione Depletion-Induced Oxidative Cardiomyopathy through CISD1-Dependent Regulation of Ferroptosis in Murine Hearts. THE AMERICAN JOURNAL OF PATHOLOGY 2024:S0002-9440(24)00078-6. [PMID: 38417695 DOI: 10.1016/j.ajpath.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/28/2024] [Accepted: 02/15/2024] [Indexed: 03/01/2024]
Abstract
This study was designed to discern the effect of heavy scavenger metallothionein on glutathione (GSH) deprivation-evoked cardiac anomalies and mechanisms involved with an emphasis on ferroptosis. Wild-type and cardiac metallothionein transgenic mice received GSH synthase inhibitor buthionine sulfoximine (BSO; 30 mmol/L in drinking water) for 14 days before assessment of myocardial morphology and function. BSO evoked cardiac remodeling and contractile anomalies, including cardiac hypertrophy, interstitial fibrosis, enlarged left ventricular chambers, deranged ejection fraction, fraction shortening, cardiomyocyte contractile capacity, intracellular Ca2+ handling, sarcoplasmic reticulum Ca2+ reuptake, loss of mitochondrial integrity (mitochondrial swelling, loss of aconitase activity), mitochondrial energy deficit, carbonyl damage, lipid peroxidation, ferroptosis, and apoptosis. Metallothionein itself did not affect myocardial morphology and function, although it mitigated BSO-provoked myocardial anomalies, loss of mitochondrial integrity and energy, and ferroptosis. Immunoblotting revealed down-regulated sarco(endo)plasmic reticulum Ca2+-ATPase 2a, glutathione peroxidase 4, the ferroptosis-suppressing iron-sulfur domain 1 (CISD1), and mitochondrial regulating glycogen synthase kinase-3β phosphorylation with elevated p53, myosin heavy chain-β isozyme, IκB phosphorylation, and SLC7A11 as well as unchanged SLC39A1, SLC1A5, and ferroptosis-suppressing protein 1 following BSO challenge, all of which, except glutamine transporter SLC7A11 and p53, were abrogated by metallothionein. Inhibition of CISD1 using pioglitazone nullified GSH-offered benefit against BSO-induced cardiomyocyte ferroptosis and contractile and intracellular Ca2+ derangement. Taken together, these findings support a regulatory modality for CISD1 in the impedance of ferroptosis in metallothionein-offered protection against GSH depletion-evoked cardiac aberration.
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Affiliation(s)
- Feng-Juan Li
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Shouzhi Fu
- Department of ICU/Emergency Wuhan Third Hospital, Wuhan University, Wuhan, China
| | - Hua Ye
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Burns and Plastic and Wound Repair, Ganzhou People's Hospital, Ganzhou, China
| | - Yi-Han Hu
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jianxin Chen
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Jamie R Privratsky
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina
| | - Wei Yu
- Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Feng Dong
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Maolong Dong
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jun Guo
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China.
| | - Jun Ren
- National Clinical Research Center for Interventional Medicine, Shanghai, China; Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China.
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Zhu G, Gao H, Li Y, Li X, Yang X, Wang C, Guo Z, Fan H, Fan L. Suppression of endoplasmic reticulum stress by 4-PBA enhanced atherosclerotic plaque stability via up-regulating CLOCK expression. Pathol Res Pract 2024; 253:154969. [PMID: 38029715 DOI: 10.1016/j.prp.2023.154969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/18/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023]
Abstract
Endoplasmic reticulum (ER) stress refers to a condition where the normal functioning of the ER is disrupted due to a variety of cellular stress factors. As a result, there is an accumulation of unfolded and misfolded proteins within the ER. Numerous studies have shown that ER stress can exacerbate inflammatory reactions and contribute to the development of various inflammatory diseases. However, the role of ER stress in the stability of atherosclerotic plaques remains poorly understood. In this study, we aimed to explore the potential impact of a specific ER stress inhibitor known as 4-phenyl butyric acid (4-PBA) on atherosclerosis in mice. The mice were fed a high-fat diet, and treatment with 4-PBA significantly improved the stability of the atherosclerotic plaques. This was evidenced by a reduction in oxidative stress and an increase in circadian locomotor output cycles kaput (CLOCK) protein and mRNA expression within the plaques. Additionally, 4-PBA reduced the expression of ER stress-related proteins and decreased apoptosis in the atherosclerotic plaques. In vitro investigation, we observed the effect of 4-PBA on vascular smooth muscle cells (VSMCs) that were exposed to oxidized low-density lipoprotein (ox-LDL), a significant contributor to the development of atherosclerosis. 4-PBA reduced reactive oxygen species (ROS) production and attenuated apoptosis, GRP78 and CHOP protein expression in ox-LDL-Induced VSMCs via up-regulating CLOCK expression. However, when the short hairpin RNA against CLOCK (sh-CLOCK) was introduced to the VSMCs, the protective effect of 4-PBA was abolished. This suggests that the up-regulation of CLOCK expression is crucial for the beneficial effects of 4-PBA on atherosclerotic plaque stability. This finding suggests that targeting ER stress and modulating CLOCK protein levels might be a promising way to enhance the stability of atherosclerotic plaques.
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Affiliation(s)
- Guanglang Zhu
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hongxia Gao
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yang Li
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xu Li
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaohu Yang
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chen Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhenyu Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Heyu Fan
- School of Arts and Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Longhua Fan
- Department of Vascular Surgery, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China; Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
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Huang F, Mariani N, Pariante CM, Borsini A. From dried bear bile to molecular investigation of differential effects of bile acids in ex vivo and in vitro models of myocardial dysfunction: Relevance for neuroinflammation. Brain Behav Immun Health 2023; 32:100674. [PMID: 37593199 PMCID: PMC10430170 DOI: 10.1016/j.bbih.2023.100674] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/27/2023] [Indexed: 08/19/2023] Open
Abstract
Bile acids have been known to have both beneficial and detrimental effects on heart function, and as a consequence this can affect the brain. Inflammation is a key factor linking the heart and the brain, bile acids can reduce inflammation in the heart and, as a consequence, neuroinflammation, which may be due to the activation of different peripheral and central cellular and molecular mechanisms. Herein, we compile data published so far and summarise evidence demonstrating the effects of bile acids on myocardial cell viability and function, and its related mechanisms, in ex vivo and in vitro studies conducted in homeostatic state or in models of cardiovascular diseases. Studies show that ursodeoxycholic acid (UDCA) and tauroursodeoxycholic acid (TUDCA) do not affect the viability or contraction of cardiomyocytes in homeostatic state, and while UDCA has the capability to prevent the effect of hypoxia on reduced cell viability and beating rate, TUDCA can protect endoplasmic reticulum (ER) stress-induced apoptosis and cardiac contractile dysfunction. In contrast, deoxycholic acid (DCA) decreases contraction rate in homeostatic state, but it also prevents hypoxia-induced inflammation and oxidative stress, whereas lithocholic acid (LCA) can rescue doxazosin-induced apoptosis. Moreover, glycodeoxycholic acid (GDCA), cholic acid (CA), chenodeoxycholic acid (CDCA), glycocholic acid (GCA), taurocholic acid (TCA), taurochenodeoxycholic acid (TCDCA) and taurodeoxycholic acid (TDCA) decrease contraction, whereas CDCA decreases cell viability in homeostatic conditions. The mechanisms underlying the aforementioned contrasting effects involve a differential regulation of the TGR5, M2R and FXR receptors, as well as the cAMP signalling pathway. Overall, this review confirms the therapeutic potential of certain types of bile acids: UDCA, TUDCA, and potentially LCA, in cardiovascular diseases. By reducing inflammation in the heart, bile acids can improve heart-brain communication and promote overall health. Additional investigations are required to better elucidate mechanisms of action and more personalized clinical therapeutic doses.
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Affiliation(s)
- Fei Huang
- Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, UK
- Shanghai Key Laboratory of Compound Chinese Medicines, Shanghai R&D Centre for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, PR China
| | - Nicole Mariani
- Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, UK
| | - Carmine M. Pariante
- Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, UK
| | - Alessandra Borsini
- Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, UK
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Guo Y, Cao Y, Jardin BD, Zhang X, Zhou P, Guatimosim S, Lin J, Chen Z, Zhang Y, Mazumdar N, Lu F, Ma Q, Lu YW, Zhao M, Wang DZ, Dong E, Pu WT. Ryanodine receptor 2 (RYR2) dysfunction activates the unfolded protein response and perturbs cardiomyocyte maturation. Cardiovasc Res 2023; 119:221-235. [PMID: 35576474 PMCID: PMC10233305 DOI: 10.1093/cvr/cvac077] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 04/03/2022] [Accepted: 05/05/2022] [Indexed: 11/15/2022] Open
Abstract
AIMS Calcium-handling capacity is a major gauge of cardiomyocyte maturity. Ryanodine receptor 2 (RYR2) is the pre-dominant calcium channel that releases calcium from the sarcoplasmic reticulum/endoplasmic reticulum (SR/ER) to activate cardiomyocyte contraction. Although RYR2 was previously implied as a key regulator of cardiomyocyte maturation, the mechanisms remain unclear. The aim of this study is to solve this problem. METHODS AND RESULTS We performed Cas9/AAV9-mediated somatic mutagenesis to knockout RYR2 specifically in cardiomyocytes in mice. We conducted a genetic mosaic analysis to dissect the cell-autonomous function of RYR2 during cardiomyocyte maturation. We found that RYR2 depletion triggered ultrastructural and transcriptomic defects relevant to cardiomyocyte maturation. These phenotypes were associated with the drastic activation of ER stress pathways. The ER stress alleviator tauroursodeoxycholic acid partially rescued the defects in RYR2-depleted cardiomyocytes. Overexpression of ATF4, a key ER stress transcription factor, recapitulated defects in RYR2-depleted cells. Integrative analysis of RNA-Seq and bioChIP-Seq data revealed that protein biosynthesis-related genes are the major direct downstream targets of ATF4. CONCLUSION RYR2-regulated ER homeostasis is essential for cardiomyocyte maturation. Severe ER stress perturbs cardiomyocyte maturation primarily through ATF4 activation. The major downstream effector genes of ATF4 are related to protein biosynthesis.
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Affiliation(s)
- Yuxuan Guo
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Yangpo Cao
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Blake D Jardin
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Xiaoran Zhang
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Pingzhu Zhou
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Silvia Guatimosim
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte MG - CEP 31270-901, Brazil
| | - Junsen Lin
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Zhan Chen
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Yueyang Zhang
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Neil Mazumdar
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Fujian Lu
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Qing Ma
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Yao-Wei Lu
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Mingming Zhao
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing 100191, China
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Erdan Dong
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing 100191, China
| | - William T Pu
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA
- Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA 02138, USA
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Ajoolabady A, Lebeaupin C, Wu NN, Kaufman RJ, Ren J. ER stress and inflammation crosstalk in obesity. Med Res Rev 2023; 43:5-30. [PMID: 35975736 DOI: 10.1002/med.21921] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/07/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
The endoplasmic reticulum (ER) governs the proper folding of polypeptides and proteins through various chaperones and enzymes residing within the ER organelle. Perturbation in the ER folding process ensues when overwhelmed protein folding exceeds the ER handling capacity, leading to the accumulation of misfolded/unfolded proteins in the ER lumen-a state being referred to as ER stress. In turn, ER stress induces a gamut of signaling cascades, termed as the "unfolded protein response" (UPR) that reinstates the ER homeostasis through a panel of gene expression modulation. This type of UPR is usually deemed "adaptive UPR." However, persistent or unresolved ER stress hyperactivates UPR response, which ultimately, triggers cell death and inflammatory pathways, termed as "maladaptive/terminal UPR." A plethora of evidence indicates that crosstalks between ER stress (maladaptive UPR) and inflammation precipitate obesity pathogenesis. In this regard, the acquisition of the mechanisms linking ER stress to inflammation in obesity might unveil potential remedies to tackle this pathological condition. Herein, we aim to elucidate key mechanisms of ER stress-induced inflammation in the context of obesity and summarize potential therapeutic strategies in the management of obesity through maneuvering ER stress and ER stress-associated inflammation.
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Affiliation(s)
- Amir Ajoolabady
- Department of Cardiology and Shanghai Institute for Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cynthia Lebeaupin
- Degenerative Diseases Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Ne N Wu
- Department of Cardiology and Shanghai Institute for Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Randal J Kaufman
- Degenerative Diseases Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Jun Ren
- Department of Cardiology and Shanghai Institute for Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
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Hamilton S, Terentyev D. ER stress and calcium-dependent arrhythmias. Front Physiol 2022; 13:1041940. [PMID: 36425292 PMCID: PMC9679650 DOI: 10.3389/fphys.2022.1041940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
Abstract
The sarcoplasmic reticulum (SR) plays the key role in cardiac function as the major source of Ca2+ that activates cardiomyocyte contractile machinery. Disturbances in finely-tuned SR Ca2+ release by SR Ca2+ channel ryanodine receptor (RyR2) and SR Ca2+ reuptake by SR Ca2+-ATPase (SERCa2a) not only impair contraction, but also contribute to cardiac arrhythmia trigger and reentry. Besides being the main Ca2+ storage organelle, SR in cardiomyocytes performs all the functions of endoplasmic reticulum (ER) in other cell types including protein synthesis, folding and degradation. In recent years ER stress has become recognized as an important contributing factor in many cardiac pathologies, including deadly ventricular arrhythmias. This brief review will therefore focus on ER stress mechanisms in the heart and how these changes can lead to pro-arrhythmic defects in SR Ca2+ handling machinery.
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Affiliation(s)
- Shanna Hamilton
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, OH, United States,Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States,*Correspondence: Shanna Hamilton,
| | - Dmitry Terentyev
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, OH, United States,Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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8
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Understanding the Role of SERCA2a Microdomain Remodeling in Heart Failure Induced by Obesity and Type 2 Diabetes. J Cardiovasc Dev Dis 2022; 9:jcdd9050163. [PMID: 35621874 PMCID: PMC9147026 DOI: 10.3390/jcdd9050163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/21/2022] [Accepted: 04/25/2022] [Indexed: 11/29/2022] Open
Abstract
Obesity and type 2 diabetes (T2D) are on trend to become a huge burden across all ages. They cause harm to almost every organ, especially the heart. For decades, the incidence of heart failure with impaired diastolic function (or called heart failure with preserved ejection fraction, HFpEF) has increased sharply. More and more studies have uncovered obesity and T2D to be closely associated with HFpEF. The sarcoplasmic/endoplasmic reticulum calcium ATPase2a (SERCA2a) microdomain is a key regulator of calcium reuptake into the sarcoplasmic reticulum (SR) during diastole. 3′,5′-cyclic adenosine monophosphate (cAMP) and its downstream effector cAMP dependent protein kinase (PKA) act locally within the SERCA2a microdomain to regulate the phosphorylation state of the small regulatory protein phospholamban (PLN), which forms a complex with SERCA2a. When phosphorylated, PLN promotes calcium reuptake into the SR and diastolic cardiac relaxation by disinhibiting SERCA2a pump function. In this review, we will discuss previous studies investigating the PLN/SERCA2a microdomain in obesity and T2D in order to gain a greater understanding of the underlying mechanisms behind obesity- and T2D-induced diastolic dysfunction, with the aim to identify the current state of knowledge and future work that is needed to guide further research in the field.
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Liu M, Kang GJ, Dudley SC. Preventing unfolded protein response-induced ion channel dysregulation to treat arrhythmias. Trends Mol Med 2022; 28:443-451. [DOI: 10.1016/j.molmed.2022.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 01/15/2023]
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10
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Ajoolabady A, Liu S, Klionsky DJ, Lip GYH, Tuomilehto J, Kavalakatt S, Pereira DM, Samali A, Ren J. ER stress in obesity pathogenesis and management. Trends Pharmacol Sci 2022; 43:97-109. [PMID: 34893351 PMCID: PMC8796296 DOI: 10.1016/j.tips.2021.11.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 02/06/2023]
Abstract
Given the unprecedented global pandemic of obesity, a better understanding of the etiology of adiposity will be necessary to ensure effective management of obesity and related complications. Among the various potential factors contributing to obesity, endoplasmic reticulum (ER) stress refers to a state of excessive protein unfolding or misfolding that is commonly found in metabolic diseases including diabetes mellitus, insulin resistance (IR), and non-alcoholic fatty liver disease, although its role in obesogenesis remains controversial. ER stress is thought to drive adiposity by dampening energy expenditure, making ER stress a likely therapeutic target for the management of obesity. We summarize the role of ER stress and the ER stress response in the onset and development of obesity, and discuss the underlying mechanisms involved with a view to identifying novel therapeutic strategies for obesity prevention and management.
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Affiliation(s)
- Amir Ajoolabady
- University of Wyoming College of Health Sciences, Laramie, WY 82071, USA; Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Simin Liu
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Departments of Epidemiology, Medicine, and Surgery and Center for Global Cardiometabolic Health, Brown University, Providence, RI, USA
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gregory Y H Lip
- University of Liverpool Institute of Ageing and Chronic Disease, Liverpool Centre for Cardiovascular Science, Liverpool, UK
| | - Jaakko Tuomilehto
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland; Department of Public Health, University of Helsinki, Helsinki, Finland; Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sina Kavalakatt
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, Dasman, Kuwait
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
| | - Afshin Samali
- Apoptosis Research Centre, School of Natural Sciences, National University of Ireland, Galway, Ireland.
| | - Jun Ren
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
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11
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Ajoolabady A, Wang S, Kroemer G, Klionsky DJ, Uversky VN, Sowers JR, Aslkhodapasandhokmabad H, Bi Y, Ge J, Ren J. ER Stress in Cardiometabolic Diseases: From Molecular Mechanisms to Therapeutics. Endocr Rev 2021; 42:839-871. [PMID: 33693711 DOI: 10.1210/endrev/bnab006] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 02/08/2023]
Abstract
The endoplasmic reticulum (ER) hosts linear polypeptides and fosters natural folding of proteins through ER-residing chaperones and enzymes. Failure of the ER to align and compose proper protein architecture leads to accumulation of misfolded/unfolded proteins in the ER lumen, which disturbs ER homeostasis to provoke ER stress. Presence of ER stress initiates the cytoprotective unfolded protein response (UPR) to restore ER homeostasis or instigates a rather maladaptive UPR to promote cell death. Although a wide array of cellular processes such as persistent autophagy, dysregulated mitophagy, and secretion of proinflammatory cytokines may contribute to the onset and progression of cardiometabolic diseases, it is well perceived that ER stress also evokes the onset and development of cardiometabolic diseases, particularly cardiovascular diseases (CVDs), diabetes mellitus, obesity, and chronic kidney disease (CKD). Meanwhile, these pathological conditions further aggravate ER stress, creating a rather vicious cycle. Here in this review, we aimed at summarizing and updating the available information on ER stress in CVDs, diabetes mellitus, obesity, and CKD, hoping to offer novel insights for the management of these cardiometabolic comorbidities through regulation of ER stress.
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Affiliation(s)
- Amir Ajoolabady
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
| | - Shuyi Wang
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- School of Medicine Shanghai University, Shanghai 200444, China
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, USA
| | - James R Sowers
- Dalton and Diabetes and Cardiovascular Center, University of Missouri Columbia, Columbia, Missouri 65212, USA
| | | | - Yaguang Bi
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Jun Ren
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington 98195, USA
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12
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Fu J, Aung MH, Prunty MC, Hanif AM, Hutson LM, Boatright JH, Pardue MT. Tauroursodeoxycholic Acid Protects Retinal and Visual Function in a Mouse Model of Type 1 Diabetes. Pharmaceutics 2021; 13:1154. [PMID: 34452115 PMCID: PMC8400977 DOI: 10.3390/pharmaceutics13081154] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 01/14/2023] Open
Abstract
PURPOSE Previous studies demonstrated that systemic treatment with tauroursodeoxycholic acid (TUDCA) is protective in in vivo mouse models of retinal degeneration and in culture models of hyperglycemia. This study tested the hypothesis that TUDCA will preserve visual and retinal function in a mouse model of early diabetic retinopathy (DR). METHODS Adult C57BL/6J mice were treated with streptozotocin (STZ) and made diabetic at 8-10 weeks of age. Control and diabetic mice were treated with vehicle or TUDCA starting 1 or 3 weeks after induction of diabetes, and were assessed bimonthly for visual function via an optomotor response and monthly for retinal function via scotopic electroretinograms. RESULTS Diabetic mice showed significantly reduced spatial frequency and contrast sensitivity thresholds compared to control mice, while diabetic mice treated early with TUDCA showed preservation at all timepoints. A-wave, b-wave, and oscillatory potential 2 (OP2) amplitudes decreased in diabetic mice. Diabetic mice also exhibited delays in a-wave and OP2-implicit times. Early TUDCA treatment ameliorated a-wave, b-wave, and OP2 deficits. Late TUDCA treatment showed reduced preservation effects compared to early treatment. CONCLUSIONS Early TUDCA treatment preserved visual function in an STZ-mouse model of Type I diabetes. These data add to a growing body of preclinical research that may support testing whether TUDCA may be an effective early clinical intervention against declining visual function caused by diabetic retinopathy.
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Affiliation(s)
- Jieming Fu
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Neuroscience Graduate Program, University of Virginia, Charlottesville, VA 22904, USA
| | - Moe H. Aung
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Neuroscience, Emory University, Atlanta, GA 30322, USA
- Department of Ophthalmology, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Megan C. Prunty
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Case Western Reserve University School of Medicine, Urology Institute of University Hospitals, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Adam M. Hanif
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Lauren M. Hutson
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Department of Psychology and Neuroscience, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Jeffrey H. Boatright
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Neuroscience, Emory University, Atlanta, GA 30322, USA
- Ophthalmology, Emory University, Atlanta, GA 30322, USA
| | - Machelle T. Pardue
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Decatur, GA 30033, USA; (J.F.); (M.H.A.); (M.C.P.); (A.M.H.); (L.M.H.)
- Neuroscience, Emory University, Atlanta, GA 30322, USA
- Ophthalmology, Emory University, Atlanta, GA 30322, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA 30332, USA
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13
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Efentakis P, Molitor M, Kossmann S, Bochenek ML, Wild J, Lagrange J, Finger S, Jung R, Karbach S, Schäfer K, Schulz A, Wild P, Münzel T, Wenzel P. Tubulin-folding cofactor E deficiency promotes vascular dysfunction by increased endoplasmic reticulum stress. Eur Heart J 2021; 43:488-500. [PMID: 34132336 PMCID: PMC8830526 DOI: 10.1093/eurheartj/ehab222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/29/2020] [Accepted: 03/26/2021] [Indexed: 12/14/2022] Open
Abstract
AIMS Assessment of endothelial function in humans by measuring flow-mediated dilation (FMD) risk-stratifies individuals with established cardiovascular disease, whereas its predictive value is limited in primary prevention. We therefore aimed to establish and evaluate novel markers of FMD at the population level. METHODS AND RESULTS In order to identify novel targets that were negatively correlated with FMD and investigate their contribution to vascular function, we performed a genome-wide association study (GWAS) of 4175 participants of the population based Gutenberg Health Study. Subsequently, conditional knockout mouse models deleting the gene of interest were generated and characterized. GWAS analysis revealed that single-nucleotide polymorphisms (SNPs) in the tubulin-folding cofactor E (TBCE) gene were negatively correlated with endothelial function and TBCE expression. Vascular smooth muscle cell (VSMC)-targeted TBCE deficiency was associated with endothelial dysfunction, aortic wall hypertrophy, and endoplasmic reticulum (ER) stress-mediated VSMC hyperproliferation in mice, paralleled by calnexin up-regulation and exacerbated by the blood pressure hormone angiotensin II. Treating SMMHC-ERT2-Cre+/-TBCEfl/fl mice with the ER stress modulator tauroursodeoxycholic acid amplified Raptor/Beclin-1-dependent autophagy and reversed vascular dysfunction. CONCLUSION TBCE and tubulin homeostasis seem to be novel predictors of vascular function and offer a new drug target to ameliorate ER stress-dependent vascular dysfunction.
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Affiliation(s)
- Panagiotis Efentakis
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Michael Molitor
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Sabine Kossmann
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Magdalena L Bochenek
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Johannes Wild
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Jeremy Lagrange
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Stefanie Finger
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Rebecca Jung
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Susanne Karbach
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Katrin Schäfer
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Andreas Schulz
- Department of Cardiology-Preventive Cardiology and Medical Prevention, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Philipp Wild
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Department of Cardiology-Preventive Cardiology and Medical Prevention, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Thomas Münzel
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Philip Wenzel
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Center for Thrombosis and Hemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK)-Partner site Rhine-Main, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
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14
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Wu MX, Wang SH, Xie Y, Chen ZT, Guo Q, Yuan WL, Guan C, Xu CZ, Huang YN, Wang JF, Zhang HF, Chen YX. Interleukin-33 alleviates diabetic cardiomyopathy through regulation of endoplasmic reticulum stress and autophagy via insulin-like growth factor-binding protein 3. J Cell Physiol 2021; 236:4403-4419. [PMID: 33184863 DOI: 10.1002/jcp.30158] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 12/29/2022]
Abstract
Prolonged endoplasmic reticulum (ER) stress is the key driving force behind diabetic cardiomyopathy (DCM). Autophagy is extensively implicated in adaptive mechanisms for cell survival. Interleukin-33 (IL-33) is known to be a potent cardiac protector, but its roles in DCM, ER stress, and autophagy are currently unknown. We aimed to explore the effects of IL-33 on DCM and characterize the roles that ER stress and autophagy play in DCM. The effects of IL-33 on DCM, ER stress, and autophagy were characterized both in db/db mice and in palmitic acid (PA)-treated cardiomyocytes. The manipulators of ER stress and autophagy were used to clarify their roles in DCM remittance conferred by IL-33. Gene expression analysis was used to identify IL-33-dependent regulators of ER stress and autophagy. Both db/db mice and PA-treated cells presented with enhanced levels of ER stress, apoptosis, and lipid deposition, as well as impaired autophagy, all of which could be reversed by IL-33. Treatment with IL-33 improved the cardiac diastolic function of diabetic mice. Nonselective autophagy inhibitors, such as 3-methyladenine (3-MA) or wortmannin, abolished the protective effects of IL-33, resulting in an increase in both ER stress and apoptosis. Strikingly, insulin-like growth factor-binding protein 3 (IGFBP3) was identified as the gene most significantly differentially expressed between IL-33 and control groups. Knockdown of IGFBP3 expression, similar to the effect of nonselective autophagy inhibitors, resulted in high levels of ER stress, impaired autophagy, and apoptosis that were not rescued upon treatment with IL-33. IL-33 abates DCM by alleviating ER stress and promoting autophagy. IGFBP3 is essential for IL-33-induced ER stress resolution and autophagic enhancement during DCM.
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MESH Headings
- Animals
- Apoptosis Regulatory Proteins/metabolism
- Autophagy/drug effects
- Autophagy-Related Proteins/metabolism
- Cells, Cultured
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetic Cardiomyopathies/etiology
- Diabetic Cardiomyopathies/metabolism
- Diabetic Cardiomyopathies/pathology
- Diabetic Cardiomyopathies/prevention & control
- Disease Models, Animal
- Endoplasmic Reticulum Stress/drug effects
- Insulin-Like Growth Factor Binding Protein 3/genetics
- Insulin-Like Growth Factor Binding Protein 3/metabolism
- Interleukin-33/pharmacology
- Male
- Mice
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Palmitic Acid/toxicity
- Rats, Sprague-Dawley
- Signal Transduction
- Rats
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Affiliation(s)
- Mao-Xiong Wu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Shao-Hua Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Yong Xie
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Zhi-Teng Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Qi Guo
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Wo-Liang Yuan
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Chang Guan
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Cheng-Zhang Xu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Yu-Na Huang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Jing-Feng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Hai-Feng Zhang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
| | - Yang-Xin Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, Guangdong, China
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15
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Pao HP, Liao WI, Tang SE, Wu SY, Huang KL, Chu SJ. Suppression of Endoplasmic Reticulum Stress by 4-PBA Protects Against Hyperoxia-Induced Acute Lung Injury via Up-Regulating Claudin-4 Expression. Front Immunol 2021; 12:674316. [PMID: 34122432 PMCID: PMC8194262 DOI: 10.3389/fimmu.2021.674316] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/10/2021] [Indexed: 12/20/2022] Open
Abstract
Endoplasmic reticulum (ER) stress that disrupts ER function can occur in response to a wide variety of cellular stress factors leads to the accumulation of unfolded and misfolded proteins in the ER. Many studies have shown that ER stress amplified inflammatory reactions and was involved in various inflammatory diseases. However, little is known regarding the role of ER stress in hyperoxia-induced acute lung injury (HALI). This study investigated the influence of ER stress inhibitor, 4-phenyl butyric acid (4-PBA), in mice with HALI. Treatment with 4-PBA in the hyperoxia groups significantly prolonged the survival, decreased lung edema, and reduced the levels of inflammatory mediators, lactate dehydrogenase, and protein in bronchoalveolar lavage fluid, and increased claudin-4 protein expression in lung tissue. Moreover, 4-PBA reduced the ER stress-related protein expression, NF-κB activation, and apoptosis in the lung tissue. In in vitro study, 4-PBA also exerted a similar effect in hyperoxia-exposed mouse lung epithelial cells (MLE-12). However, when claudin-4 siRNA was administrated in mice and MLE-12 cells, the protective effect of 4-PBA was abrogated. These results suggested that 4-PBA protected against hyperoxia-induced ALI via enhancing claudin-4 expression.
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Affiliation(s)
- Hsin-Ping Pao
- The Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Wen-I Liao
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shih-En Tang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Yu Wu
- Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Kun-Lun Huang
- The Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Shi-Jye Chu
- Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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16
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Ren J, Wu NN, Wang S, Sowers JR, Zhang Y. Obesity cardiomyopathy: evidence, mechanisms, and therapeutic implications. Physiol Rev 2021; 101:1745-1807. [PMID: 33949876 PMCID: PMC8422427 DOI: 10.1152/physrev.00030.2020] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The prevalence of heart failure is on the rise and imposes a major health threat, in part, due to the rapidly increased prevalence of overweight and obesity. To this point, epidemiological, clinical, and experimental evidence supports the existence of a unique disease entity termed “obesity cardiomyopathy,” which develops independent of hypertension, coronary heart disease, and other heart diseases. Our contemporary review evaluates the evidence for this pathological condition, examines putative responsible mechanisms, and discusses therapeutic options for this disorder. Clinical findings have consolidated the presence of left ventricular dysfunction in obesity. Experimental investigations have uncovered pathophysiological changes in myocardial structure and function in genetically predisposed and diet-induced obesity. Indeed, contemporary evidence consolidates a wide array of cellular and molecular mechanisms underlying the etiology of obesity cardiomyopathy including adipose tissue dysfunction, systemic inflammation, metabolic disturbances (insulin resistance, abnormal glucose transport, spillover of free fatty acids, lipotoxicity, and amino acid derangement), altered intracellular especially mitochondrial Ca2+ homeostasis, oxidative stress, autophagy/mitophagy defect, myocardial fibrosis, dampened coronary flow reserve, coronary microvascular disease (microangiopathy), and endothelial impairment. Given the important role of obesity in the increased risk of heart failure, especially that with preserved systolic function and the recent rises in COVID-19-associated cardiovascular mortality, this review should provide compelling evidence for the presence of obesity cardiomyopathy, independent of various comorbid conditions, underlying mechanisms, and offer new insights into potential therapeutic approaches (pharmacological and lifestyle modification) for the clinical management of obesity cardiomyopathy.
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Affiliation(s)
- Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China.,Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
| | - Shuyi Wang
- School of Medicine, Shanghai University, Shanghai, China.,University of Wyoming College of Health Sciences, Laramie, Wyoming
| | - James R Sowers
- Dalton Cardiovascular Research Center, Diabetes and Cardiovascular Research Center, University of Missouri-Columbia, Columbia, Missouri
| | - Yingmei Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
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17
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McCarty MF. Nutraceutical, Dietary, and Lifestyle Options for Prevention and Treatment of Ventricular Hypertrophy and Heart Failure. Int J Mol Sci 2021; 22:ijms22073321. [PMID: 33805039 PMCID: PMC8037104 DOI: 10.3390/ijms22073321] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/22/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Although well documented drug therapies are available for the management of ventricular hypertrophy (VH) and heart failure (HF), most patients nonetheless experience a downhill course, and further therapeutic measures are needed. Nutraceutical, dietary, and lifestyle measures may have particular merit in this regard, as they are currently available, relatively safe and inexpensive, and can lend themselves to primary prevention as well. A consideration of the pathogenic mechanisms underlying the VH/HF syndrome suggests that measures which control oxidative and endoplasmic reticulum (ER) stress, that support effective nitric oxide and hydrogen sulfide bioactivity, that prevent a reduction in cardiomyocyte pH, and that boost the production of protective hormones, such as fibroblast growth factor 21 (FGF21), while suppressing fibroblast growth factor 23 (FGF23) and marinobufagenin, may have utility for preventing and controlling this syndrome. Agents considered in this essay include phycocyanobilin, N-acetylcysteine, lipoic acid, ferulic acid, zinc, selenium, ubiquinol, astaxanthin, melatonin, tauroursodeoxycholic acid, berberine, citrulline, high-dose folate, cocoa flavanols, hawthorn extract, dietary nitrate, high-dose biotin, soy isoflavones, taurine, carnitine, magnesium orotate, EPA-rich fish oil, glycine, and copper. The potential advantages of whole-food plant-based diets, moderation in salt intake, avoidance of phosphate additives, and regular exercise training and sauna sessions are also discussed. There should be considerable scope for the development of functional foods and supplements which make it more convenient and affordable for patients to consume complementary combinations of the agents discussed here. Research Strategy: Key word searching of PubMed was employed to locate the research papers whose findings are cited in this essay.
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Affiliation(s)
- Mark F McCarty
- Catalytic Longevity Foundation, 811 B Nahant Ct., San Diego, CA 92109, USA
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18
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Galindo-Hernandez O, Leija-Montoya AG, Romero-Garcia T, Vazquez-Jimenez JG. Palmitic acid decreases cell migration by increasing RGS2 expression and decreasing SERCA expression. Genet Mol Biol 2021; 44:e20200279. [PMID: 33729330 PMCID: PMC7967171 DOI: 10.1590/1678-4685-gmb-2020-0279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 01/18/2021] [Indexed: 12/13/2022] Open
Abstract
Palmitic acid, the main saturated fatty acid, is related with a wide range of
metabolic disorders such as obesity, type 2 diabetes and heart disease. It is
known that palmitic acid disturbs the expression of some important proteins for
cell homeostasis such as SERCA and RGS2, however, the role of this lipid at the
molecular level in these disorders is not completely elucidated. Thus, our aim
was to determinate the effect of palmitic acid in a relevant cell process as it
is cell migration and the participation of SERCA and RGS2 in this response. We
found that palmitic acid reduces cell migration (determined by the Boyden
chamber method) in an epithelial cell line (HEK293) and this effect is modulated
by SERCA and RGS2 differential protein expression (measured by western blot).
Also, overexpression of individual proteins, RGS2 and SERCA, produced a decrease
and an increase on cell migration, respectively. Taken together, these data
suggest that the expression of regulatory proteins is affected by high
concentrations of saturated fatty acids and in consequence cell migration is
diminished in epithelial cells.
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Affiliation(s)
- Octavio Galindo-Hernandez
- Autonomous University of Baja California, Laboratory of Biochemistry, School of Medicine, Campus Mexicali, BC, Mexico
| | - Ana Gabriela Leija-Montoya
- Autonomous University of Baja California, Laboratory of Biochemistry, School of Medicine, Campus Mexicali, BC, Mexico
| | - Tatiana Romero-Garcia
- Autonomous University of Baja California, Laboratory of Biochemistry, Sports School, Campus Mexicali, BC, Mexico
| | - Jose Gustavo Vazquez-Jimenez
- Autonomous University of Baja California, Laboratory of Molecular Pathogenesis, School of Medicine, Campus Mexicali, BC, Mexico
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19
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Endoplasmic reticulum stress and unfolded protein response in cardiovascular diseases. Nat Rev Cardiol 2021; 18:499-521. [PMID: 33619348 DOI: 10.1038/s41569-021-00511-w] [Citation(s) in RCA: 278] [Impact Index Per Article: 92.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases (CVDs), such as ischaemic heart disease, cardiomyopathy, atherosclerosis, hypertension, stroke and heart failure, are among the leading causes of morbidity and mortality worldwide. Although specific CVDs and the associated cardiometabolic abnormalities have distinct pathophysiological and clinical manifestations, they often share common traits, including disruption of proteostasis resulting in accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER). ER proteostasis is governed by the unfolded protein response (UPR), a signalling pathway that adjusts the protein-folding capacity of the cell to sustain the cell's secretory function. When the adaptive UPR fails to preserve ER homeostasis, a maladaptive or terminal UPR is engaged, leading to the disruption of ER integrity and to apoptosis. ER stress functions as a double-edged sword, with long-term ER stress resulting in cellular defects causing disturbed cardiovascular function. In this Review, we discuss the distinct roles of the UPR and ER stress response as both causes and consequences of CVD. We also summarize the latest advances in our understanding of the importance of the UPR and ER stress in the pathogenesis of CVD and discuss potential therapeutic strategies aimed at restoring ER proteostasis in CVDs.
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20
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Activation of Liver X Receptors by GW3965 Attenuated Deoxycorticosterone Acetate-Salt Hypertension-Induced Cardiac Functional and Structural Changes. J Cardiovasc Pharmacol 2020; 74:105-117. [PMID: 31397742 DOI: 10.1097/fjc.0000000000000693] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, the effect of liver X receptor (LXR) activation on hypertension-induced cardiac structural and functional alterations was investigated. Hypertension was induced by deoxycorticosterone acetate (DOCA)-salt administration in uninephrectomized rats for 6 weeks. LXR agonist GW3965 (3-{3-[(2-chloro-3-trifluoromethyl-benzyl)-(2,2-diphenyl-ethyl)-amino]-propoxy}-phenyl)-acetic acid was given for the past week. Rhythmic activity and contractions of the isolated heart tissues were recorded. Biochemical parameters were assessed in ventricular tissue and plasma samples. Cardiac expressions of various proteins were examined, and histopathological evaluation was performed in the left ventricle and liver. GW3965 reduced systolic blood pressure and enhanced noradrenaline-stimulated papillary muscle contraction induced by DOCA-salt + uninephrectomy. Plasma and tissue total antioxidant capacity (TAC) increased and tissue 4-hydroxynonenal (4-HNE) levels decreased in the DOCA-salt group. GW3965 elevated plasma and tissue TAC levels in both of groups. Glucose-regulated protein-78 (GRP78), phospho-dsRNA-activated-protein kinase-like ER kinase (p-PERK), matrix metalloproteinase-2 (MMP-2), and nuclear factor-κB p65 (NF-κB p65) expression was augmented, and inhibitor-κB-α (IκB-α) expression was reduced in hypertensive hearts. The altered levels of all these markers were reversed by GW3965. Also, GW3965 ameliorated DOCA-salt + uninephrectomy-induced cardiac and hepatic inflammation and fibrosis. However, GW3965 unchanged the plasma lipid levels and hepatic balloon degeneration score. These results demonstrated that LXR activation may improve hypertension-induced cardiac changes without undesired effects.
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21
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Kusaczuk M. Tauroursodeoxycholate-Bile Acid with Chaperoning Activity: Molecular and Cellular Effects and Therapeutic Perspectives. Cells 2019; 8:E1471. [PMID: 31757001 PMCID: PMC6952947 DOI: 10.3390/cells8121471] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 12/11/2022] Open
Abstract
Tauroursodeoxycholic acid (TUDCA) is a naturally occurring hydrophilic bile acid that has been used for centuries in Chinese medicine. Chemically, TUDCA is a taurine conjugate of ursodeoxycholic acid (UDCA), which in contemporary pharmacology is approved by Food and Drug Administration (FDA) for treatment of primary biliary cholangitis. Interestingly, numerous recent studies demonstrate that mechanisms of TUDCA functioning extend beyond hepatobiliary disorders. Thus, TUDCA has been demonstrated to display potential therapeutic benefits in various models of many diseases such as diabetes, obesity, and neurodegenerative diseases, mostly due to its cytoprotective effect. The mechanisms underlying this cytoprotective activity have been mainly attributed to alleviation of endoplasmic reticulum (ER) stress and stabilization of the unfolded protein response (UPR), which contributed to naming TUDCA as a chemical chaperone. Apart from that, TUDCA has also been found to reduce oxidative stress, suppress apoptosis, and decrease inflammation in many in-vitro and in-vivo models of various diseases. The latest research suggests that TUDCA can also play a role as an epigenetic modulator and act as therapeutic agent in certain types of cancer. Nevertheless, despite the massive amount of evidence demonstrating positive effects of TUDCA in pre-clinical studies, there are certain limitations restraining its wide use in patients. Here, molecular and cellular modes of action of TUDCA are described and therapeutic opportunities and limitations of this bile acid are discussed.
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Affiliation(s)
- Magdalena Kusaczuk
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Mickiewicza 2A, 15-222 Białystok, Poland
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22
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Bal NB, Han S, Kiremitci S, Sadi G, Uludag O, Demirel-Yilmaz E. Hypertension-induced cardiac impairment is reversed by the inhibition of endoplasmic reticulum stress. ACTA ACUST UNITED AC 2019; 71:1809-1821. [PMID: 31579948 DOI: 10.1111/jphp.13169] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 08/09/2019] [Accepted: 09/01/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Endoplasmic reticulum stress (ERS) has been shown to play a crucial role in the pathogenesis of hypertension. However, the role and mechanisms of ERS on hypertension-induced cardiac functional and morphological changes remain unclear. In this study, the effect of ERS inhibition with tauroursodeoxycholic acid (TUDCA) on hypertension-induced cardiac remodelling was examined. METHODS Hypertension was induced by deoxycorticosterone-acetate (DOCA) and salt administration in uni-nephrectomized rats for 12 weeks. TUDCA was administered for the last four weeks. Rhythmic activity and contractions of the right atrium and left papillary muscle (LPM) were recorded. In the left ventricle, the expression of various proteins was examined and histopathological evaluation was performed. KEY FINDINGS Hypertension-induced increments in systolic blood pressure and ventricular contractions were reversed by TUDCA. In the hypertensive heart, while expressions of glucose-regulated protein-78 (GRP78), phospho-dsRNA-activated protein kinase-like ER kinase (p-PERK), sarcoplasmic reticulum Ca-ATPase-2 (SERCA2), matrix metalloproteinase-2 (MMP-2) and nuclear NF-κB p65 increased; Bcl-2 (B-cell lymphoma-2) expression decreased and the altered levels of all these markers were restored by TUDCA. In the microscopic examination, TUDCA treatment attenuated hypertension-stimulated cardiac inflammation and fibrosis. CONCLUSIONS These results suggest that ERS inhibition may ameliorate cardiac contractility through improving ERS-associated calcium mishandling, apoptosis, inflammation and fibrosis, thereby offering therapeutic potential in hypertension-induced cardiac dysfunction.
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Affiliation(s)
- Nur Banu Bal
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Sevtap Han
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Saba Kiremitci
- Department of Pathology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Gökhan Sadi
- Department of Biology, K.Ö. Faculty of Science, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Orhan Uludag
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Emine Demirel-Yilmaz
- Department of Medical Pharmacology, Faculty of Medicine, Ankara University, Ankara, Turkey
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23
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Lieben Louis X, Raj P, Meikle Z, Yu L, Susser SE, MacInnis S, Duhamel TA, Wigle JT, Netticadan T. Resveratrol prevents palmitic-acid-induced cardiomyocyte contractile impairment. Can J Physiol Pharmacol 2019; 97:1132-1140. [PMID: 31374178 DOI: 10.1139/cjpp-2019-0051] [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: 12/16/2022]
Abstract
Long-chain saturated fatty acids, especially palmitic acid (PA), contribute to cardiomyocyte lipotoxicity. This study tests the effects of PA on adult rat cardiomyocyte contractile function and proteins associated with calcium regulating cardiomyocyte contraction and relaxation. Adult rat cardiomyocytes were pretreated with resveratrol (Resv) and then treated with PA. For the reversal study, cardiomyocytes were incubated with PA prior to treatment with Resv. Cardiomyocyte contractility, ratio of rod- to round-shaped cardiomyocytes, and Hoechst staining were used to measure functional and morphological changes in cardiomyocytes. Protein expression of sarco-endoplasmic reticulum ATPase 2a (SERCA2a), native phospholamban (PLB) and phosphorylated PLB (pPLB ser16 and pPLB thr17), and troponin I (TnI) and phosphorylated TnI (pTnI) were measured. SERCA2a activity was also measured. Our results show that PA (200 μM) decreased the rate of cardiomyocyte relaxation, reduced the number of rod-shaped cardiomyocytes, and increased the number of cells with condensed nuclei; pre-treating cardiomyocytes with Resv significantly prevented these changes. Post-treatment with Resv did not reverse morphological changes induced by PA. Protein expression levels of SERCA2a, PLB, pPLBs, TnI, and pTnI were unchanged by PA or Resv. SERCA2a activity assay showed that Vmax and Iono ratio were increased with PA and pre-treatment with Resv prevented this increase. In conclusion, our results show that Resv protect cardiomyocytes from contractile dysfunction induced by PA.
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Affiliation(s)
- Xavier Lieben Louis
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen, Research Centre, Winnipeg, MB R2H 2A6, Canada.,Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Pema Raj
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen, Research Centre, Winnipeg, MB R2H 2A6, Canada
| | - Zach Meikle
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Liping Yu
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen, Research Centre, Winnipeg, MB R2H 2A6, Canada.,Agriculture and Agri-Food Canada, Winnipeg, MB R2H 2A6, Canada
| | - Shannel E Susser
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Shayla MacInnis
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
| | - Todd A Duhamel
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,Health, Leisure & Human Performance Research Institute, Faculty of Kinesiology & Recreation Management, University of Manitoba, MB R3E 0J9, Canada
| | - Jeffrey T Wigle
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Thomas Netticadan
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen, Research Centre, Winnipeg, MB R2H 2A6, Canada.,Agriculture and Agri-Food Canada, Winnipeg, MB R2H 2A6, Canada
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25
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Belmadani S, Matrougui K. Broken heart: A matter of the endoplasmic reticulum stress bad management? World J Cardiol 2019; 11:159-170. [PMID: 31367278 PMCID: PMC6658386 DOI: 10.4330/wjc.v11.i6.159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/29/2019] [Accepted: 06/12/2019] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases are the number one cause of morbidity and mortality in the United States and worldwide. The induction of the endoplasmic reticulum (ER) stress, a result of a disruption in the ER homeostasis, was found to be highly associated with cardiovascular diseases such as hypertension, diabetes, ischemic heart diseases and heart failure. This review will discuss the latest literature on the different aspects of the involvement of the ER stress in cardiovascular complications and the potential of targeting the ER stress pathways as a new therapeutic approach for cardiovascular complications.
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Affiliation(s)
- Souad Belmadani
- Department of Physiological Science, Eastern Virginia Medical School, Norfolk, VA 23501, United States
| | - Khalid Matrougui
- Department of Physiological Science, Eastern Virginia Medical School, Norfolk, VA 23501, United States
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26
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Baskaran P, Markert L, Bennis J, Zimmerman L, Fox J, Thyagarajan B. Assessment of Pharmacology, Safety, and Metabolic activity of Capsaicin Feeding in Mice. Sci Rep 2019; 9:8588. [PMID: 31197191 PMCID: PMC6565628 DOI: 10.1038/s41598-019-45050-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 05/28/2019] [Indexed: 01/18/2023] Open
Abstract
Capsaicin (CAP) activates transient receptor potential vanilloid subfamily 1 (TRPV1) to counter high-fat diet (HFD)-induced obesity. Several studies suggest that CAP induces the browning of white adipocytes in vitro or inguinal white adipose tissue (iWAT) in vivo. However, there is a lack of data on the dose-response for CAP to inhibit HFD-induced obesity. Therefore, we first performed experiments to correlate the effect of various doses of CAP to prevent HFD-induced weight gain in wild-type (WT) mice. Next, we performed a subchronic safety study in WT mice fed a normal chow diet (NCD ± CAP, 0.01% in NCD) or HFD ± CAP (0.01% in HFD) for eight months. We analyzed the expression of adipogenic and thermogenic genes and proteins in the iWAT from these mice, conducted histological studies of vital organs, measured the inflammatory cytokines in plasma and iWAT, and evaluated liver and kidney functions. The dose-response study showed that CAP, at doses above 0.001% in HFD, countered HFD-induced obesity in mice. However, no difference in the anti-obesity effect of CAP was observed at doses above 0.003% in HFD. Also, CAP, above 0.001%, enhanced the expression of sirtuin-1 and thermogenic uncoupling protein 1 (UCP-1) in the iWAT. Safety analyses suggest that CAP did not cause inflammation. However, HFD elevated plasma alanine aminotransferase and creatinine, caused iWAT hypertrophy and hepatic steatosis, and CAP reversed these. Our data suggest that CAP antagonizes HFD-induced metabolic stress and inflammation, while it does not cause any systemic toxicities and is well tolerated by mice.
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Affiliation(s)
| | - Laurel Markert
- School of Pharmacy, University of Wyoming, Laramie, WY, 82071, USA
| | - Jane Bennis
- School of Pharmacy, University of Wyoming, Laramie, WY, 82071, USA
| | - Liesl Zimmerman
- School of Pharmacy, University of Wyoming, Laramie, WY, 82071, USA
| | - Jonathan Fox
- Department of Veterinary Sciences, University of Wyoming, Laramie, WY, 82071, USA
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27
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Zhou Q, Guo W, Jia Y, Xu J. Effect of 4-Phenylbutyric Acid and Tauroursodeoxycholic Acid on Magnesium and Calcium Metabolism in Streptozocin-Induced Type 1 Diabetic Mice. Biol Trace Elem Res 2019; 189:501-510. [PMID: 30171596 PMCID: PMC6469655 DOI: 10.1007/s12011-018-1494-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 08/24/2018] [Indexed: 12/19/2022]
Abstract
Recent evidence has identified a role of micronutrients, such as magnesium (Mg2+) and calcium (Ca2+), in glycemic control. 4-Phenylbutyric acid (PBA) and tauroursodeoxycholic acid (TUDCA) are molecular chaperones that can improve protein folding and alleviate endoplasmic reticulum (ER) stress. Increasingly, research is focusing on the association between molecular chaperones and micronutrients. This study established and characterized a mouse model of type 1 diabetes (T1D) and investigated the effect of PBA and TUDCA on Mg2+ and Ca2+ metabolism in these mice. T1D was established in Friend virus B-type mice using multiple low doses of streptozotocin. Mice were administered chaperones. Mg2+and Ca2+ levels in tissues and serum were detected using acid digestion and ICP-MS. At 2 weeks and 2 months after chaperone administration was initiated, Mg2+ levels in the heart, liver, kidney, and serum and Ca2+ levels in spleen and serum of T1D mice were significantly decreased compared with controls; Ca2+ levels in the kidney and muscle of T1D mice were significantly increased; Mg2+ and Ca2+ levels in the heart, liver, kidney, muscle, spleen, and serum were positively correlated in control and T1D mice; and PBA restored renal Mg2+ levels to normal values and TUDCA restored hepatic, renal, and serum Mg2+ levels and renal and serum Ca2+ levels to normal values in T1D mice. PBA restored muscular Ca2+ levels to normal values in T1D mice at 2 months after chaperone or vehicle administration was initiated. Further research is required to investigate the underlying mechanisms by which chaperones regulate micronutrients in diabetes.
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Affiliation(s)
- Qi Zhou
- Department of Pediatrics, First Hospital of Jilin University, Changchun, 130021, China
| | - Wenjia Guo
- Department of Laboratory Medicine, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Yanan Jia
- Department of Laboratory Medicine, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Jiancheng Xu
- Department of Laboratory Medicine, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China.
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28
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Palee S, Minta W, Mantor D, Sutham W, Jaiwongkam T, Kerdphoo S, Pratchayasakul W, Chattipakorn SC, Chattipakorn N. Combination of exercise and calorie restriction exerts greater efficacy on cardioprotection than monotherapy in obese-insulin resistant rats through the improvement of cardiac calcium regulation. Metabolism 2019; 94:77-87. [PMID: 30796936 DOI: 10.1016/j.metabol.2019.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/10/2019] [Accepted: 02/11/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND Long-term high-fat diet (HFD) consumption causes obese-insulin resistance which is known to be a major risk factor for cardiovascular diseases due to its impact on the impairment of left ventricular (LV) contractile function and cardiac mitochondrial function. Intracellular calcium [Ca2+]i regulation plays an important role in the maintenance of LV function. Although either caloric restriction (CR) or exercise (Ex) are shown to strongly affect metabolic status and LV function, the combined effects of exercise and calorie restriction on cardiometabolic status, cardiac mitochondrial dynamics and cardiac [Ca2+]i transient homeostasis under conditions of obese-insulin resistance have never been investigated. METHODS Female rats were fed with either a high-fat diet (HFD: fat, 59.28%; protein, 26.45%; carbohydrate, 14.27%) or a normal diet (fat, 19.77%; protein, 28.24%; carbohydrate, 51.99%) for 13 weeks. HFD rats were then divided into 4 groups: 1) Vehicle (HFD + Veh); 2) Calorie restriction (HFD + CR); 3) Exercise (HFD + Ex) and 4) Combined therapy (HFD + CR + Ex). After 6-week intervention, the metabolic status, heart rate variability (HRV), LV function, cardiac mitochondrial dynamics, and [Ca2+]i transients were determined. RESULTS Insulin resistance developed in HFD rats as indicated by increased plasma insulin and HOMA index. Although HFD + Veh rats had markedly impaired LV function, indicated by reduced %LVFS and impaired cardiac mitochondrial dynamics and [Ca2+]i transients, these impairments were attenuated in the HFD + CR, HFD + Ex and HFD + CR + Ex rats. However, the greatest improvement in cardiometabolic function was observed in HFD + CR + Ex rats. CONCLUSIONS Our findings indicated that a combination of calorie restriction and exercise exerted greater cardioprotection than a monotherapy through the improvement of cardiometabolic status, cardiac mitochondrial dynamics and cardiac [Ca2+]i homeostasis in obese-insulin resistant rats.
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Affiliation(s)
- Siripong Palee
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wanitchaya Minta
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Duangkamol Mantor
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wissuta Sutham
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thidarat Jaiwongkam
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sasiwan Kerdphoo
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wasana Pratchayasakul
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Oral Biology and Diagnostic Science, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
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29
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Zhang Y, Zhang L, Zhang Y, Fan X, Yang W, Yu B, Kou J, Li F. YiQiFuMai Powder Injection Attenuates Coronary Artery Ligation-Induced Heart Failure Through Improving Mitochondrial Function via Regulating ROS Generation and CaMKII Signaling Pathways. Front Pharmacol 2019; 10:381. [PMID: 31031629 PMCID: PMC6470332 DOI: 10.3389/fphar.2019.00381] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 03/26/2019] [Indexed: 11/26/2022] Open
Abstract
The YiQiFuMai powder injection (YQFM), a traditional Chinese medicine (TCM) prescription re-developed based on Sheng-Mai-San, is widely applied for the treatment of cardiovascular diseases. However, its potential molecular mechanism remains obscure. The present study was designed to observe the effects of YQFM and underlying mechanisms on coronary artery ligation (CAL)-induced heart failure (HF) and cell hypoxia of 24 h oxygen-glucose deprivation (OGD) in neonatal rat ventricular myocytes (NRVMs). HF was induced by permanent CAL for 2 weeks in ICR mice. The results demonstrated that YQFM significantly attenuated CAL-induced HF via improving the cardiac function, cardiac systolic function, cardiac structure impairment, cardiac histological features and fibrosis. YQFM markedly attenuated mitochondrial dysfunction through improving mitochondrial morphology, increasing mitochondria membrane potential (Δψm), mitochondrial ROS generation and expression of Mitofusin-2 (Mfn2), meanwhile, decreasing phosphorylation of dynamin-related protein 1 (p-Drp1). Mechanistically, YQFM could significantly decrease the expression of isoforms of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit NADPH oxidase 2 (NOX2), p67phox and NADPH oxidase 4 (NOX4), ultimately reducing reactive oxygen species (ROS) generation. In addition, YQFM could down-regulate expression of calcium voltage-gated channel subunit α1C (CACNA1C) and phosphorylation of calmodulin dependent protein kinase II (p-CaMKII). These results suggest that YQFM ameliorates mitochondrial function in HF mice, partially through inhibiting ROS generation and CaMKII signaling pathways. Therefore, the present study provided scientific evidence for the underlying mechanism of YQFM.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ling Zhang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yan Zhang
- Nanjing Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaoxue Fan
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Weiwei Yang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Boyang Yu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Junping Kou
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Fang Li
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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Sletten AC, Peterson LR, Schaffer JE. Manifestations and mechanisms of myocardial lipotoxicity in obesity. J Intern Med 2018; 284:478-491. [PMID: 29331057 PMCID: PMC6045461 DOI: 10.1111/joim.12728] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Environmental and socioeconomic changes over the past thirty years have contributed to a dramatic rise in the worldwide prevalence of obesity. Heart disease is amongst the most serious health risks of obesity, with increases in both atherosclerotic coronary heart disease and heart failure among obese individuals. In this review, we focus on primary myocardial alterations in obesity that include hypertrophic remodelling and diastolic dysfunction. Obesity-associated perturbations in myocardial and systemic lipid metabolism are important contributors to cardiovascular complications of obesity. Accumulation of excess lipid in nonadipose cells of the cardiovascular system can cause cell dysfunction and cell death, a process known as lipotoxicity. Lipotoxicity has been modelled in mice using high-fat diet feeding, inbred lines with mutations in leptin receptor signalling, and in genetically engineered mice with enhanced myocardial fatty acid uptake, altered lipid droplet homoeostasis or decreased cardiac fatty acid oxidation. These studies, along with findings in cell culture model systems, indicate that the molecular pathophysiology of lipid overload involves endoplasmic reticulum stress, alterations in autophagy, de novo ceramide synthesis, oxidative stress, inflammation and changes in gene expression. We highlight recent advances that extend our understanding of the impact of obesity and altered lipid metabolism on cardiac function.
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Affiliation(s)
- A C Sletten
- Department of Medicine, Washington University, St Louis, MO, USA
| | - L R Peterson
- Department of Medicine, Washington University, St Louis, MO, USA
| | - J E Schaffer
- Department of Medicine, Washington University, St Louis, MO, USA
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Ceylan AF, Wang S, Kandadi MR, Chen J, Hua Y, Pei Z, Nair S, Ren J. Cardiomyocyte-specific knockout of endothelin receptor a attenuates obesity cardiomyopathy. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3339-3352. [DOI: 10.1016/j.bbadis.2018.07.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 07/14/2018] [Accepted: 07/16/2018] [Indexed: 12/20/2022]
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Abstract
Human heart failure is characterized by arrhythmogenic electrical remodeling consisting mostly of ion channel downregulations. Reversing these downregulations is a logical approach to antiarrhythmic therapy, but understanding the pathophysiological mechanisms of the reduced currents is crucial for finding the proper treatments. The unfolded protein response (UPR) is activated by endoplasmic reticulum (ER) stress and has been found to play pivotal roles in different diseases including neurodegenerative diseases, diabetes mellitus, and heart disease. Recently, the UPR is reported to regulate multiple cardiac ion channels, contributing to arrhythmias in heart disease. In this review, we will discuss which UPR modulators and effectors could be involved in regulation of cardiac ion channels in heart disease, and how the understanding of these regulating mechanisms may lead to new antiarrhythmic therapeutics that lack the proarrhythmic risk of current ion channel blocking therapies.
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Affiliation(s)
- Man Liu
- a Division of Cardiology, Department of Medicine, The Lillehei Heart Institute , University of Minnesota at Twin Cities , Minneapolis , USA
| | - Samuel C Dudley
- a Division of Cardiology, Department of Medicine, The Lillehei Heart Institute , University of Minnesota at Twin Cities , Minneapolis , USA
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Vasavan T, Ferraro E, Ibrahim E, Dixon P, Gorelik J, Williamson C. Heart and bile acids - Clinical consequences of altered bile acid metabolism. Biochim Biophys Acta Mol Basis Dis 2018; 1864:1345-1355. [PMID: 29317337 DOI: 10.1016/j.bbadis.2017.12.039] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 12/18/2017] [Accepted: 12/22/2017] [Indexed: 12/11/2022]
Abstract
Cardiac dysfunction has an increased prevalence in diseases complicated by liver cirrhosis such as primary biliary cholangitis and primary sclerosing cholangitis. This observation has led to research into the association between abnormalities in bile acid metabolism and cardiac pathology. Approximately 50% of liver cirrhosis cases develop cirrhotic cardiomyopathy. Bile acids are directly implicated in this, causing QT interval prolongation, cardiac hypertrophy, cardiomyocyte apoptosis and abnormal haemodynamics of the heart. Elevated maternal serum bile acids in intrahepatic cholestasis of pregnancy, a disorder which causes an impaired feto-maternal bile acid gradient, have been associated with fatal fetal arrhythmias. The hydrophobicity of individual bile acids in the serum bile acid pool is of relevance, with relatively lipophilic bile acids having a more harmful effect on the heart. Ursodeoxycholic acid can reverse or protect against these detrimental cardiac effects of elevated bile acids.
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Affiliation(s)
- Tharni Vasavan
- Department of Women and Children's Health, King's College London, Guy's Campus, Hodgkin Building, SE1 1UL London, United Kingdom
| | - Elisa Ferraro
- National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, Du Cane Road, W12 0NN London, United Kingdom
| | - Effendi Ibrahim
- National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, Du Cane Road, W12 0NN London, United Kingdom; Faculty of Medicine, MARA University of Technology, 40000 Sungai Buloh, Malaysia
| | - Peter Dixon
- Department of Women and Children's Health, King's College London, Guy's Campus, Hodgkin Building, SE1 1UL London, United Kingdom
| | - Julia Gorelik
- National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, Du Cane Road, W12 0NN London, United Kingdom
| | - Catherine Williamson
- Department of Women and Children's Health, King's College London, Guy's Campus, Hodgkin Building, SE1 1UL London, United Kingdom.
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Deletion of protein tyrosine phosphatase 1B obliterates endoplasmic reticulum stress-induced myocardial dysfunction through regulation of autophagy. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3060-3074. [PMID: 28941626 DOI: 10.1016/j.bbadis.2017.09.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/01/2017] [Accepted: 09/19/2017] [Indexed: 12/26/2022]
Abstract
Endoplasmic reticulum (ER) stress has been demonstrated to prompt various cardiovascular risks although the underlying mechanism remains elusive. Protein tyrosine phosphatase-1B (PTP1B) serves as an essential negative regulator for insulin signaling. This study examined the role of PTP1B in ER stress-induced myocardial anomalies and underlying mechanism involved with a focus on autophagy. WT and PTP1B knockout mice were subjected to the ER stress inducer tunicamycin (1mg/kg). Cardiac function was evaluated with echocardiography and an Ion-Optix MyoCam system. Western blot analysis was used to monitor the levels of ER stress, autophagy and insulin signaling including insulin receptor substrate (IRS), tribbles homolog 3 (TRIB3), Atg5/7, p62 and LC3-II. Our results showed that ER stress resulted in compromised echocardiographic and cardiomyocyte contractile function, intracellular Ca2+ mishandling, ER stress, O2- production, apoptosis, the effects of which (with the exception of ER stress) were significantly attenuated or negated by PTP1B ablation. Levels of serine phosphorylation of IRS-1, TRIB3, Atg5/7, LC3B and the autophagy adaptor p62 were significantly upregulated while IRS-1 tyrosine phosphorylation was reduced by tunicamycin, the effect of which were obliterated by PTP1B ablation. In vitro study revealed that the autophagy inducer rapamycin and TRIB3 overexpression cancelled PTP1B ablation-offered beneficial effects on cardiomyocyte function or O2- production in murine cardiomyocytes or H9C2 myoblasts. Antioxidant or gene silencing of TRIB3 mimicked PTP1B ablation-induced protective effects. These findings collectively suggested that PTP1B ablation protects against ER stress-induced cardiac anomalies through regulation of autophagy.
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Rani S, Sreenivasaiah PK, Kim JO, Lee MY, Kang WS, Kim YS, Ahn Y, Park WJ, Cho C, Kim DH. Tauroursodeoxycholic acid (TUDCA) attenuates pressure overload-induced cardiac remodeling by reducing endoplasmic reticulum stress. PLoS One 2017; 12:e0176071. [PMID: 28426781 PMCID: PMC5398705 DOI: 10.1371/journal.pone.0176071] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 04/05/2017] [Indexed: 12/26/2022] Open
Abstract
Pressure overload in the heart induces pathological hypertrophy and is associated with cardiac dysfunction. Apoptosis and fibrosis signaling initiated by the endoplasmic reticulum stress (ERS) is known to contribute to these maladaptive effects. The aim of this study was to investigate whether reduction of ERS by a known chemical chaperone, tauroursodeoxycholic acid (TUDCA) can attenuate pressure overload-induced cardiac remodeling in a mouse model of transverse aortic constriction (TAC). Oral administration of TUDCA at a dose of 300 mg/kg body weight (BW) in the TUDCA-TAC group reduced ERS markers (GRP78, p-PERK, and p-eIf2α), compared to the Vehicle (Veh)-TAC group. TUDCA administration, for 4 weeks after TAC significantly reduced cardiac hypertrophy as shown by the reduced heart weight (HW) to BW ratio, and expression of hypertrophic marker genes (ANF, BNP, and α-SKA). Masson's trichrome staining showed that myocardial fibrosis and collagen deposition were also significantly reduced in the TUDCA-TAC group. We also found that TUDCA significantly decreased expression of TGF-β signaling proteins and collagen isoforms. TUDCA administration also reduced cardiac apoptosis and the related proteins in the TUDCA-TAC group. Microarray analysis followed by gene ontology (GO) and pathway analysis demonstrated that extracellular matrix genes responsible for hypertrophy and fibrosis, and mitochondrial genes responsible for apoptosis and fatty acid metabolism were significantly altered in the Veh-TAC group, but the alterations were normalized in the TUDCA-TAC group, suggesting potential of TUDCA in treatment of heart diseases related to pressure-overload.
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Affiliation(s)
- Shilpa Rani
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
| | | | - Jin Ock Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
| | - Mi Young Lee
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
| | - Wan Seok Kang
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Yong Sook Kim
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Youngkeun Ahn
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Woo Jin Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
| | - Chunghee Cho
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
| | - Do Han Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
- * E-mail:
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Lei Y, Li X, Yuan F, Liu L, Zhang J, Yang Y, Zhao J, Han Y, Ren J, Fu X. Toll-like receptor 4 ablation rescues against paraquat-triggered myocardial dysfunction: Role of ER stress and apoptosis. ENVIRONMENTAL TOXICOLOGY 2017; 32:656-668. [PMID: 27442881 DOI: 10.1002/tox.22267] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/18/2016] [Accepted: 03/20/2016] [Indexed: 06/06/2023]
Abstract
Paraquat is a nitrogen herbicide imposing severe organ toxicity in human leading to acute lung injury and heart failure. The present study was designed to examine the impact of ablation of the innate proinflammatory mediator toll-like receptor 4 (TLR4) in paraquat-induced cardiac contractile dysfunction and the underlying mechanisms involved with a focus on endoplasmic reticulum (ER) stress and apoptosis. Adult male wild-type (WT) and TLR4 knockout (TLR4-/- ) mice were challenged with paraquat (45 mg/kg, i.p.) for 48 h prior to the assessment of myocardial and cardiomyocyte sarcomere function, ER stress, apoptosis and inflammation. Acute paraquat challenge exerted myocardial functional and geometric alterations including enlarged left ventricular end systolic diameter (LVESD), reduced fractional shortening, decreased sarcomere shortening, maximal velocities of sarcomere shortening and relengthening associated with unchanged LV posterior wall thickness, septal thickness, LV end diastolic diameter (LVEDD), heart rate, sarcomere length, time-to-peak shortening and time-to-90% relengthening. Although TLR4 ablation did not affect mechanical properties in the heart, it significantly attenuated or ablated paraquat-induced cardiac contractile anomalies. Moreover, paraquat imposed overt ER stress, apoptosis and inflammation as evidenced by upregulation of Bip, CHOP, Caspase-3, -9, Bax, Bad, and IL-1β, phosphorylation of PERK, eIF2α and IΚB, as well as activation of the stress molecules ERK and p38, with unchanged Caspase-8, Bcl2, TNF-α, p53, HMGB1, MyD88 and phosphorylation of Akt, GSK3β and JNK, the effects of which were attenuated or negated by TLR4 knockout. Taken together, our results suggested that TLR4 ablation alleviated paraquat-induced myocardial contractile dysfunction possibly through attenuation of ER stress, apoptosis and inflammation. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 656-668, 2017.
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Affiliation(s)
- Yonghong Lei
- Institute of Wound Healing and Cell Biology Laboratory, the First Affiliated Hospital, Beijing, 100048, China
| | - Xue Li
- Cardiovascular Department, Tangdu Hospital, Xi'an, 710038, China
| | - Fang Yuan
- Department of Orthopedics, General Hospital of Chinese PLA, Beijing, 100853, China
| | - Lu Liu
- Department of Clinical Nutrition, General Hospital of Chinese PLA, Beijing, 100853, China
| | - Juan Zhang
- Cardiovascular Department, Tangdu Hospital, Xi'an, 710038, China
| | - Yanping Yang
- Cardiovascular Department, Tangdu Hospital, Xi'an, 710038, China
| | - Jieqiong Zhao
- Cardiovascular Department, Tangdu Hospital, Xi'an, 710038, China
| | - Yan Han
- Department of Plastic Surgery, General Hospital of Chinese PLA, Beijing, 100853, China
| | - Jun Ren
- Department of Cardiology, Fudan University, Zhongshan Hospital, Shanghai, 210032, China
| | - Xiaobing Fu
- Institute of Wound Healing and Cell Biology Laboratory, the First Affiliated Hospital, Beijing, 100048, China
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Restaino RM, Deo SH, Parrish AR, Fadel PJ, Padilla J. Increased monocyte-derived reactive oxygen species in type 2 diabetes: role of endoplasmic reticulum stress. Exp Physiol 2017; 102:139-153. [PMID: 27859785 DOI: 10.1113/ep085794] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 11/16/2016] [Indexed: 12/14/2022]
Abstract
NEW FINDINGS What is the central question of this study? Patients with type 2 diabetes exhibit increased oxidative stress in peripheral blood mononuclear cells, including monocytes; however, the mechanisms remain unknown. What is the main finding and its importance? The main finding of this study is that factors contained within the plasma of patients with type 2 diabetes can contribute to increased oxidative stress in monocytes, making them more adherent to endothelial cells. We show that these effects are largely mediated by the interaction between endoplasmic reticulum stress and NADPH oxidase activity. Recent evidence suggests that exposure of human monocytes to glucolipotoxic media to mimic the composition of plasma of patients with type 2 diabetes (T2D) results in the induction of endoplasmic reticulum (ER) stress markers and formation of reactive oxygen species (ROS). The extent to which these findings translate to patients with T2D remains unclear. Thus, we first measured ROS (dihydroethidium fluorescence) in peripheral blood mononuclear cells (PBMCs) from whole blood of T2D patients (n = 8) and compared the values with age-matched healthy control subjects (n = 8). The T2D patients exhibited greater basal intracellular ROS (mean ± SD, +3.4 ± 1.4-fold; P < 0.05) compared with control subjects. Next, the increase in ROS in PBMCs isolated from T2D patients was partly recapitulated in cultured human monocytes (THP-1 cells) exposed to plasma from T2D patients for 36 h (+1.3 ± 0.08-fold versus plasma from control subjects; P < 0.05). In addition, we found that increased ROS formation in THP-1 cells treated with T2D plasma was NADPH oxidase derived and led to increased endothelial cell adhesion (+1.8 ± 0.5-fold; P < 0.05) and lipid uptake (+1.3 ± 0.3-fold; P < 0.05). Notably, we found that T2D plasma-induced monocyte ROS and downstream functional effects were abolished by treating cells with tauroursodeoxycholic acid, a chemical chaperone known to inhibit ER stress. Collectively, these data indicate that monocyte ROS production with T2D can be attributed, in part, to signals from the circulating environment. Furthermore, an interplay between ER stress and NADPH oxidase activity contributes to ROS production and may be a mechanism mediating endothelial cell adhesion and foam cell formation in T2D.
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Affiliation(s)
- Robert M Restaino
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Shekhar H Deo
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Alan R Parrish
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Paul J Fadel
- Department of Kinesiology, University of Texas-Arlington, Arlington, TX, USA
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.,Department of Child Health, University of Missouri, Columbia, MO, USA
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SIRT1 protects the heart from ER stress-induced cell death through eIF2α deacetylation. Cell Death Differ 2016; 24:343-356. [PMID: 27911441 DOI: 10.1038/cdd.2016.138] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 09/22/2016] [Accepted: 10/11/2016] [Indexed: 01/10/2023] Open
Abstract
Over the past decade, endoplasmic reticulum (ER) stress has emerged as an important mechanism involved in the pathogenesis of cardiovascular diseases including heart failure. Cardiac therapy based on ER stress modulation is viewed as a promising avenue toward effective therapies for the diseased heart. Here, we tested whether sirtuin-1 (SIRT1), a NAD+-dependent deacetylase, participates in modulating ER stress response in the heart. Using cardiomyocytes and adult-inducible SIRT1 knockout mice, we demonstrate that SIRT1 inhibition or deficiency increases ER stress-induced cardiac injury, whereas activation of SIRT1 by the SIRT1-activating compound STAC-3 is protective. Analysis of the expression of markers of the three main branches of the unfolded protein response (i.e., PERK/eIF2α, ATF6 and IRE1) showed that SIRT1 protects cardiomyocytes from ER stress-induced apoptosis by attenuating PERK/eIF2α pathway activation. We also present evidence that SIRT1 physically interacts with and deacetylates eIF2α. Mass spectrometry analysis identified lysines K141 and K143 as the acetylation sites on eIF2α targeted by SIRT1. Furthermore, mutation of K143 to arginine to mimic eIF2α deacetylation confers protection against ER stress-induced apoptosis. Collectively, our findings indicate that eIF2α deacetylation on lysine K143 by SIRT1 is a novel regulatory mechanism for protecting cardiac cells from ER stress and suggest that activation of SIRT1 has potential as a therapeutic approach to protect the heart against ER stress-induced injury.
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Matsumoto T, Watanabe S, Ando M, Yamada K, Iguchi M, Taguchi K, Kobayashi T. Diabetes and Age-Related Differences in Vascular Function of Renal Artery: Possible Involvement of Endoplasmic Reticulum Stress. Rejuvenation Res 2016; 19:41-52. [PMID: 26234558 DOI: 10.1089/rej.2015.1662] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To study the time-course relationship between vascular functions and endoplasmic reticulum (ER) stress in type 2 diabetes, we investigated vascular function and associated protein expression, including cyclo-oxygenase (COX), ER stress, and apoptotic markers, in renal arteries (RA) from type 2 diabetic Otsuka Long-Evans Tokushima fatty (OLETF) rats at the young adult (4 months old) and aged (18 months old) stages. In the RA of aged OLETF (vs. young OLETF), we found: (1) Increased contractions induced by uridine adenosine tetraphosphate (Up4A) and phenylephrine, (2) decreased relaxation and increased contraction induced by acetylcholine (ACh) at lower and higher concentrations, respectively, and (3) increased expression of COX-1 and C/EBP-homologous protein (CHOP, a pro-apoptotic protein). In aged rats, the expression of COX-1, COX-2, PDI (an ER protein disulfide isomerase), Bax (a proapoptotic marker), and CHOP were increased in RA from OLETF rats (vs. age-matched control Long-Evans Tokushima Otsuka [LETO] rats). Up-regulation of PDI and Bax were seen in the RA from young OLETF (vs. young LETO) rats. No age-related alterations were apparent in the above changes in RA from LETO rats, excluding ACh-induced contraction. Short-term treatment with the ER stress inhibitor tauroursodeoxycholic acid (TUDCA, 100 mg/kg per day, intraperitoneally for 1 week) to OLETF rats at the chronic stage of the disease (12 months old) could suppress renal arterial contractions induced by Up4A and ACh. These results suggest that a long-term duration of disease may be important for the development of vascular dysfunction rather than aging per se. The early regulation of ER stress may be important against the development of diabetes-associated vascular dysfunction.
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Affiliation(s)
- Takayuki Matsumoto
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Shun Watanabe
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Makoto Ando
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Kosuke Yamada
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Maika Iguchi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Kumiko Taguchi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
| | - Tsuneo Kobayashi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University , Shinagawa-ku, Tokyo, Japan
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Choi SK, Lim M, Byeon SH, Lee YH. Inhibition of endoplasmic reticulum stress improves coronary artery function in the spontaneously hypertensive rats. Sci Rep 2016; 6:31925. [PMID: 27550383 PMCID: PMC4994042 DOI: 10.1038/srep31925] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/28/2016] [Indexed: 12/13/2022] Open
Abstract
Endoplasmic reticulum (ER) stress has been shown to play a critical role in the pathogenesis of cardiovascular complications. However, the role and mechanisms of ER stress in hypertension remain unclear. Thus, we hypothesized that enhanced ER stress contributes to the maintenance of hypertension in spontaneously hypertensive rats (SHRs). Sixteen-week old male SHRs and Wistar Kyoto Rats (WKYs) were used in this study. The SHRs were treated with ER stress inhibitor (Tauroursodeoxycholic acid; TUDCA, 100 mg/kg/day) for two weeks. There was a decrease in systolic blood pressure in SHR treated with TUDCA. The pressure-induced myogenic tone was significantly increased, whereas endothelium-dependent relaxation was significantly attenuated in SHR compared with WHY. Interestingly, treatment of ER stress inhibitor normalized myogenic responses and endothelium-dependent relaxation in SHR. These data were associated with an increase in expression or phosphorylation of ER stress markers (Bip, ATF6, CHOP, IRE1, XBP1, PERK, and eIF2α) in SHRs, which were reduced by TUDCA treatment. Furthermore, phosphorylation of MLC20 was increased in SHRs, which was reduced by the treatment of TUDCA. Therefore, our results suggest that ER stress could be a potential target for hypertension.
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Affiliation(s)
- Soo-Kyoung Choi
- Department of Physiology, College of Medicine, Brain Korea 21 Plus Project for Medical Sciences, Yonsei University, Seoul, Korea
| | - Mihwa Lim
- Department of Physiology, College of Medicine, Brain Korea 21 Plus Project for Medical Sciences, Yonsei University, Seoul, Korea
| | - Seon-Hee Byeon
- Department of Physiology, College of Medicine, Brain Korea 21 Plus Project for Medical Sciences, Yonsei University, Seoul, Korea
| | - Young-Ho Lee
- Department of Physiology, College of Medicine, Brain Korea 21 Plus Project for Medical Sciences, Yonsei University, Seoul, Korea
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Administration of tauroursodeoxycholic acid prevents endothelial dysfunction caused by an oral glucose load. Clin Sci (Lond) 2016; 130:1881-8. [PMID: 27503949 DOI: 10.1042/cs20160501] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 08/08/2016] [Indexed: 12/13/2022]
Abstract
Postprandial hyperglycaemia leads to a transient impairment in endothelial function; however, the mechanisms remain largely unknown. Previous work in cell culture models demonstrate that high glucose results in endoplasmic reticulum (ER) stress and, in animal studies, ER stress has been implicated as a cause of endothelial dysfunction. In the present study, we tested the hypothesis that acute oral administration of tauroursodeoxycholic acid (TUDCA, 1500 mg), a chemical chaperone known to alleviate ER stress, would prevent hyperglycaemia-induced endothelial dysfunction. In 12 young healthy subjects (seven men, five women), brachial artery flow-mediated dilation (FMD) was assessed at baseline, and at 60 and 120 min after an oral glucose challenge. Subjects were tested on two separate visits in a single-blind randomized cross-over design: after oral ingestion of TUDCA or placebo capsules. FMD was reduced from baseline during hyperglycaemia under the placebo condition (-32% at 60 min and -28% at 120 min post oral glucose load; P<0.05 from baseline) but not under the TUDCA condition (-4% at 60 min and +0.3% at 120 min post oral glucose load; P>0.05 from baseline). Postprandial plasma glucose and insulin were not altered by TUDCA ingestion. Plasma oxidative stress markers 3-nitrotyrosine and thiobarbituric acid reactive substance (TBARS) remained unaltered throughout the oral glucose challenge in both conditions. These results suggest that hyperglycaemia-induced endothelial dysfunction can be mitigated by oral administration of TUDCA, thus supporting the hypothesis that ER stress may contribute to endothelial dysfunction during postprandial hyperglycaemia.
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Gavin J, Quilty F, Majer F, Gilsenan G, Byrne AM, Long A, Radics G, Gilmer JF. A fluorescent analogue of tauroursodeoxycholic acid reduces ER stress and is cytoprotective. Bioorg Med Chem Lett 2016; 26:5369-5372. [PMID: 27729186 DOI: 10.1016/j.bmcl.2016.06.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 06/21/2016] [Accepted: 06/23/2016] [Indexed: 01/18/2023]
Abstract
Tauroursodeoxycholic acid (TUDCA) is a cytoprotective ER stress inhibitor and chemical chaperone. It has therapeutic potential in a wide array of diseases but a specific macromolecular target or molecular mechanism of action remains obscure. This Letter describes an effective new synthetic approach to taurine conjugation of bile acids which we used to prepare 3α-dansyl TUDCA (4) as a probe for TUDCA actions. As a model of ER stress we used the hepatocarcinoma cell line HUH7 and stimulation with either deoxycholic acid (DCA, 200μM) or tunicamycin (5μg/ml) and measured levels of Bip/GRP78, ATF4, CHOP and XBP1s/XBP1u. Compound 4 was more effective than UDCA at inhibiting ER stress markers and had similar effects to TUDCA. In a model of cholestasis using the cytotoxic DCA to induce apoptosis, pretreatment with 4 prevented cell death similarly to TUDCA whereas the unconjugated clinically used UDCA had no effect. 3α-Dansyl TUDCA (4) appears to be a suitable reporter for TUDCA effects on ER stress and related cytoprotective activity.
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Affiliation(s)
- Jason Gavin
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Fran Quilty
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Ferenc Majer
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Georgina Gilsenan
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Anne Marie Byrne
- Institute for Molecular Medicine, Trinity Centre for Health Sciences, St James's Hospital, Dublin 8, Ireland
| | - Aideen Long
- Institute for Molecular Medicine, Trinity Centre for Health Sciences, St James's Hospital, Dublin 8, Ireland
| | - Gabor Radics
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - John F Gilmer
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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Yang L, Wang J, Yang J, Schamber R, Hu N, Nair S, Xiong L, Ren J. Antioxidant metallothionein alleviates endoplasmic reticulum stress-induced myocardial apoptosis and contractile dysfunction. Free Radic Res 2016; 49:1187-98. [PMID: 25968954 DOI: 10.3109/10715762.2015.1013952] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AIMS Endoplasmic reticulum (ER) stress exerts myocardial oxidative stress, apoptosis, and contractile anomalies, although the precise interplay between ER stress and apoptosis remains elusive. This study was designed to examine the impact of the cysteine-rich free radical scavenger metallothionein on ER stress-induced myocardial contractile defect and underlying mechanisms. METHODS AND RESULTS Wild-type friendly virus B and transgenic mice with cardiac-specific overexpression of metallothionein were challenged with the ER stress inducer tunicamycin (1 mg/kg, intraperitoneal, 48 h) prior to the assessment of myocardial function, oxidative stress, and apoptosis. Our results revealed that tunicamycin promoted cardiac remodeling (enlarged left ventricular end systolic/diastolic diameters with little changes in left ventricular wall thickness), suppressed fractional shortening and cardiomyocyte contractile function, elevated resting Ca(2+), decreased stimulated Ca(2+) release, prolonged intracellular Ca(2+) clearance, and downregulated sarco(endo)plasmic reticulum Ca(2+)-ATPase levels, the effects of which were negated by metallothionein. Treatment with tunicamycin caused cardiomyocyte mitochondrial injury, as evidenced by decreased mitochondrial membrane potential (∆Ѱm, assessed by JC-1 staining), the effect of which was negated by the antioxidant. Moreover, tunicamycin challenge dramatically facilitated myocardial apoptosis as manifested by increased Bax, caspase 9, and caspase 12 protein levels, as well as elevated caspase 3 activity. Interestingly, metallothionein transgene significantly alleviated tunicamycin-induced myocardial apoptosis. CONCLUSION Taken together, our data favor a beneficial effect of metallothionein against ER stress-induced cardiac dysfunction possibly associated with attenuation of myocardial apoptosis.
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Affiliation(s)
- L Yang
- a Department of Anesthesiology , Xijing Hospital, the Fourth Military Medical University , Xi'an , P. R. China
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Zhou Q, Wang D, Xu J, Chi B. Effect of Tauroursodeoxycholic Acid and 4-Phenylbutyric Acid on Metabolism of Copper and Zinc in Type 1 Diabetic Mice Model. Biol Trace Elem Res 2016; 170:348-56. [PMID: 26282527 PMCID: PMC4791476 DOI: 10.1007/s12011-015-0474-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 08/10/2015] [Indexed: 12/22/2022]
Abstract
Alternations of copper (Cu) and zinc (Zn) status in diabetes have received a great attention. Tauroursodeoxycholic acid (TUDCA) and 4-phenylbutyric acid (PBA) could alleviate the increased endoplasmic reticulum (ER) stress and prevent insulin resistance. This study aimed to investigate the effect of TUDCA and PBA on metabolism of Cu and Zn in diabetic mice model. Diabetes was induced by streptozotocin in FVB mice treated with and without TUDCA and PBA. Determination of Cu and Zn in tissues and serum by acid digestion was followed by ICP-MS. The renal and serum Cu levels were significantly higher, while the hepatic Cu and Zn levels were significantly decreased in the diabetic mice at 2 weeks and 2 months after diabetes onset. The increase of cardiac Cu together with the decrease of muscular Zn was found in the diabetic mice only at 2 months. Cu levels were positively correlated with Zn in the heart, liver, kidney, muscle, spleen, and serum of diabetic and control mice at both 2 weeks and 2 months. Both PBA and TUDCA reduced serum Zn, and PBA reduced hepatic Cu to normal levels in the diabetic mice at two time points, while PBA normalized serum Cu in the diabetic mice only at 2 months. PBA increased hepatic Zn to normal levels in the diabetic mice at 2 weeks, while it partially increased hepatic Zn in the same group at 2 months. Therefore, maintaining homeostasis of Cu and Zn by TUDCA and PBA in diabetes needs to be received with special attention.
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Affiliation(s)
- Qi Zhou
- Department of Pediatrics, First Hospital of Jilin University, Changchun, 130021, China
| | - Di Wang
- Department of Laboratory Medicine, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China
| | - Jiancheng Xu
- Department of Laboratory Medicine, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China.
| | - Baorong Chi
- Department of Hepatology, First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, China.
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Gronbeck KR, Rodrigues CMP, Mahmoudi J, Bershad EM, Ling G, Bachour SP, Divani AA. Application of Tauroursodeoxycholic Acid for Treatment of Neurological and Non-neurological Diseases: Is There a Potential for Treating Traumatic Brain Injury? Neurocrit Care 2016; 25:153-66. [DOI: 10.1007/s12028-015-0225-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hu J, Xu M, Yuan J, Li B, Entenman S, Yu H, Zheng QY. Tauroursodeoxycholic acid prevents hearing loss and hair cell death in Cdh23(erl/erl) mice. Neuroscience 2015; 316:311-20. [PMID: 26748055 DOI: 10.1016/j.neuroscience.2015.12.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 12/24/2015] [Accepted: 12/28/2015] [Indexed: 12/13/2022]
Abstract
Sensorineural hearing loss has long been the subject of experimental and clinical research for many years. The recently identified novel mutation of the Cadherin23 (Cdh23) gene, Cdh23(erl/erl), was proven to be a mouse model of human autosomal recessive nonsyndromic deafness (DFNB12). Tauroursodeoxycholic acid (TUDCA), a taurine-conjugated bile acid, has been used in experimental research and clinical applications related to liver disease, diabetes, neurodegenerative diseases, and other diseases associated with apoptosis. Because hair cell apoptosis was implied to be the cellular mechanism leading to hearing loss in Cdh23(erl/erl) mice (erl mice), this study investigated TUDCA's otoprotective effects in erl mice: preventing hearing impairment and protecting against hair cell death. Our results showed that systemic treatment with TUDCA significantly alleviated hearing loss and suppressed hair cell death in erl mice. Additionally, TUDCA inhibited apoptotic genes and caspase-3 activation in erl mouse cochleae. The data suggest that TUDCA could be a potential therapeutic agent for human DFNB12.
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Affiliation(s)
- J Hu
- Department of Otorhinolaryngology-Head & Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, 157 Xiwu Road, Xi'an 710014, Shaanxi, PR China; Department of Otolaryngology-Head & Neck Surgery, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - M Xu
- Department of Otorhinolaryngology-Head & Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, 157 Xiwu Road, Xi'an 710014, Shaanxi, PR China
| | - J Yuan
- Department of Otolaryngology-Head & Neck Surgery, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - B Li
- Transformative Otology and Neuroscience Center, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, Shandong, PR China
| | - S Entenman
- Department of Otolaryngology-Head & Neck Surgery, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - H Yu
- Department of Otolaryngology-Head & Neck Surgery, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - Q Y Zheng
- Department of Otorhinolaryngology-Head & Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, 157 Xiwu Road, Xi'an 710014, Shaanxi, PR China; Department of Otolaryngology-Head & Neck Surgery, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA; Transformative Otology and Neuroscience Center, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, Shandong, PR China.
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Liu M, Dudley SC. Role for the Unfolded Protein Response in Heart Disease and Cardiac Arrhythmias. Int J Mol Sci 2015; 17:ijms17010052. [PMID: 26729106 PMCID: PMC4730297 DOI: 10.3390/ijms17010052] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/14/2015] [Accepted: 12/16/2015] [Indexed: 12/23/2022] Open
Abstract
The unfolded protein response (UPR) has been extensively investigated in neurological diseases and diabetes, while its function in heart disease is less well understood. Activated UPR participates in multiple cardiac conditions and can either protect or impair heart function. Recently, the UPR has been found to play a role in arrhythmogenesis during human heart failure by affecting cardiac ion channels expression, and blocking UPR has an antiarrhythmic effect. This review will discuss the rationale for and challenges to targeting UPR in heart disease for treatment of arrhythmias.
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Affiliation(s)
- Man Liu
- The Warren Alpert Medical School of Brown University, Lifespan Cardiovascular Institute, the Providence VA Medical Center, 593 Eddy Street, APC814, Providence, RI 02903, USA.
| | - Samuel C Dudley
- The Warren Alpert Medical School of Brown University, Lifespan Cardiovascular Institute, the Providence VA Medical Center, 593 Eddy Street, APC814, Providence, RI 02903, USA.
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Gustavo Vazquez-Jimenez J, Chavez-Reyes J, Romero-Garcia T, Zarain-Herzberg A, Valdes-Flores J, Manuel Galindo-Rosales J, Rueda A, Guerrero-Hernandez A, Olivares-Reyes JA. Palmitic acid but not palmitoleic acid induces insulin resistance in a human endothelial cell line by decreasing SERCA pump expression. Cell Signal 2015; 28:53-9. [PMID: 26475209 DOI: 10.1016/j.cellsig.2015.10.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 09/05/2015] [Accepted: 10/11/2015] [Indexed: 10/22/2022]
Abstract
Palmitic acid is a negative regulator of insulin activity. At the molecular level, palmitic acid reduces insulin stimulated Akt Ser473 phosphorylation. Interestingly, we have found that incubation with palmitic acid of human umbilical vein endothelial cells induced a biphasic effect, an initial transient elevation followed by a sustained reduction of SERCA pump protein levels. However, palmitic acid produced a sustained inhibition of SERCA pump ATPase activity. Insulin resistance state appeared before there was a significant reduction of SERCA2 expression. The mechanism by which palmitic acid impairs insulin signaling may involve endoplasmic reticulum stress, because this fatty acid induced activation of both PERK, an ER stress marker, and JNK, a kinase associated with insulin resistance. None of these effects were observed by incubating HUVEC-CS cells with palmitoleic acid. Importantly, SERCA2 overexpression decreased the palmitic acid-induced insulin resistance state. All these results suggest that SERCA pump might be the target of palmitic acid to induce the insulin resistance state in a human vascular endothelial cell line. Importantly, these data suggest that HUVEC-CS cells respond to palmitic acid-exposure with a compensatory overexpression of SERCA pump within the first hour, which eventually fades out and insulin resistance prevails.
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Affiliation(s)
- J Gustavo Vazquez-Jimenez
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - Jesus Chavez-Reyes
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - Tatiana Romero-Garcia
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - Angel Zarain-Herzberg
- Department of Biochemistry, School of Medicine, National Autonomous University of Mexico, DF 04510, Mexico
| | - Jesus Valdes-Flores
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - J Manuel Galindo-Rosales
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - Angelica Rueda
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - Agustin Guerrero-Hernandez
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico
| | - J Alberto Olivares-Reyes
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute, CINVESTAV-IPN, Mexico DF 07360, Mexico.
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High-fat diet induces cardiomyocyte apoptosis via the inhibition of autophagy. Eur J Nutr 2015; 55:2245-54. [DOI: 10.1007/s00394-015-1034-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 09/01/2015] [Indexed: 10/23/2022]
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The expression of Ubc9 and the intensity of SERCA2a-SUMOylation were reduced in diet-induced obese rats and partially restored by trimetazidine. J Cardiovasc Pharmacol 2015; 65:47-53. [PMID: 25329748 DOI: 10.1097/fjc.0000000000000162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Reduced expression of sarcoplasmic reticulum calcium-transporting ATPase isoform 2a (SERCA2a) has been shown to play a significant role in the cardiac dysfunction of obese animal models. It was reported recently that SUMOylation enhances the stability and activity of SERCA2a. We hypothesized that SERCA2a-SUMOylation might be involved in obesity-mediated reduction of SERCA2a. METHOD AND RESULTS Trimetazidine (TMZ), the drug that inhibits fatty acid oxidation, was used in diet-induced obese (DIO) rats and palmitic acid (PA)-treated cardiomyocytes. The intensity of SERCA2a-SUMOylation and proteins involved in SERCA2a-SUMOylation were investigated in vivo and in vitro. DIO rats presented cardiac dysfunction, which was alleviated by TMZ treatment. Reductions of SERCA2a protein and the intensity of SERCA2a-SUMOylation were observed in DIO rats and PA-treated cardiomyocytes. These reductions were partially restored by TMZ. However, TMZ itself did not alter the intensity of SERCA2a-SUMOylation in control cardiomyocytes. The variations of protein and messenger RNA levels of Ubiquitin carrier protein 9 are in accordance with the intensity of SERCA2a-SUMOylation. Whereas the other proteins involved in SERCA2a-SUMOylation were not changed by DIO and PA. CONCLUSIONS TMZ alleviates the DIO- and PA-induced reductions of SERCA2a-SUMOylation. Ubiquitin carrier protein 9 is involved in the reductions.
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