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Ansari MA, Al-Jarallah A, Rao MS, Babiker A, Bensalamah K. Upregulation of NADPH-oxidase, inducible nitric oxide synthase and apoptosis in the hippocampus following impaired insulin signaling in the rats: Development of sporadic Alzheimer's disease. Brain Res 2024; 1834:148890. [PMID: 38552936 DOI: 10.1016/j.brainres.2024.148890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/21/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
NADPH-oxidase (NOX) is a multi-subunit enzyme complex. The upregulation of NOX causes massive production of superoxide (O2¯), which avidly reacts with nitric oxide (NO) and increases cellular reactive oxygen/nitrogen species (ROS/RNS). Increased ROS/RNS plays pivotal role in the sporadic Alzheimer's disease (sAD) development and brain damage following impaired insulin signaling. Hence, this study aimed to examine early-time course of changes in NOX and NOS expression, and apoptotic proteins in the rats hippocampi following insulin signaling impairment [induced by STZ injection; intraperitoneal (IP) or in cerebral ventricles (ICV)]. Early effects (1, 3, or 6 weeks) on the NOX activity, translocation of NOX subunits from cytosol to the membrane, NO-synthases [neuronal-, inducible- and endothelial-NOS; nNOS, iNOS and eNOS], The Rac-1 protein expression, levels of NO and O2¯, cytochrome c release, caspase-3 and 9 activations (cleavage) were studied. STZ injection (in both models) increased NOX activity, O2¯ production, and enhanced cytosolic subunits translocation into membrane. The iNOS but not nNOS and eNOS expression and NO levels were increased in STZ treated rats. Finally, STZ injection increased cytochrome c release, caspase-3 and 9 activations in a manner that was significantly associated with levels of O2¯ and NO in the hippocampus. ICV-STZ administration resulted in significant profound changes over the IP route. In conclusion, impairment in insulin function induces early changes in ROS/RNS contents through NOX and iNOS upregulation and neuronal apoptosis in the hippocampus. Our results could mechanistically explain the role of impaired insulin function in the development of sAD.
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Affiliation(s)
- Mubeen A Ansari
- Department of Pharmacology and Toxicology, Kuwait University, Kuwait City, Safat 13110, Kuwait.
| | - Aishah Al-Jarallah
- Department of Biochemistry, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Muddanna S Rao
- Department of Anatomy, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Ahmed Babiker
- Faculty of Medicine, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Khaled Bensalamah
- Faculty of Medicine, Kuwait University, Kuwait City, Safat 13110, Kuwait
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Wu T, Qu Y, Xu S, Wang Y, Liu X, Ma D. SIRT6: A potential therapeutic target for diabetic cardiomyopathy. FASEB J 2023; 37:e23099. [PMID: 37462453 DOI: 10.1096/fj.202301012r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/26/2023] [Accepted: 07/05/2023] [Indexed: 07/21/2023]
Abstract
The abnormal lipid metabolism in diabetic cardiomyopathy can cause myocardial mitochondrial dysfunction, lipotoxicity, abnormal death of myocardial cells, and myocardial remodeling. Mitochondrial homeostasis and normal lipid metabolism can effectively slow down the development of diabetic cardiomyopathy. Recent studies have shown that SIRT6 may play an important role in the pathological changes of diabetic cardiomyopathy such as myocardial cell death, myocardial hypertrophy, and myocardial fibrosis by regulating mitochondrial oxidative stress and glucose and lipid metabolism. Therefore, understanding the function of SIRT6 and its role in the pathogenesis of diabetic cardiomyopathy is of great significance for exploring and developing new targets and drugs for the treatment of diabetic cardiomyopathy. This article reviews the latest findings of SIRT6 in the pathogenesis of diabetic cardiomyopathy, focusing on the regulation of mitochondria and lipid metabolism by SIRT6 to explore potential clinical treatments.
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Affiliation(s)
- Tao Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yiwei Qu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shengjie Xu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yong Wang
- Department of Cardiology, Shandong University of Traditional Chinese Medicine Affiliated Hospital, Jinan, China
| | - Xue Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Dufang Ma
- Department of Cardiology, Shandong University of Traditional Chinese Medicine Affiliated Hospital, Jinan, China
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Jin B, Wang J, Chen Y, Zuo W, Hong B, Li J, Huang F, Zhang M, Wang Y. Focal adhesion kinase induces cardiac remodeling through NF-κB-mediated inflammatory responses in diabetic cardiomyopathy. Int Immunopharmacol 2023; 120:110280. [PMID: 37216798 DOI: 10.1016/j.intimp.2023.110280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/11/2022] [Accepted: 05/01/2023] [Indexed: 05/24/2023]
Abstract
BACKGROUND Hyperglycemia-induced chronic inflammation is a crucial risk factor that causes undesirable cardiac alternations in diabetic cardiomyopathy (DCM). Focal adhesion kinase (FAK) is a non-receptor protein tyrosine kinase that primarily regulates cell adhesion and migration. Based on recent studies, FAK is involved in inflammatory signaling pathway activation in cardiovascular diseases. Here, we evaluated the possibility of FAK as a therapeutic target for DCM. METHODS A small molecular selective FAKinhibitor, PND-1186 (PND), was used to evaluate the effect of FAK on DCM in both high glucose-stimulated cardiomyocytes and streptozotocin (STZ)-induced type 1 diabetes mellitus (T1DM) mice. RESULTS Increased FAK phosphorylation was found in the hearts of STZ-induced T1DM mice. PND treatment significantly decreased the expression of inflammatory cytokines and fibrogenic markers in cardiac specimens of diabetic mice. Notably, these reductions were correlated with improved cardiac systolic function. Furthermore, PND suppressed transforming growth factor-β-activated kinase 1 (TAK1) phosphorylation and NF-κB activation in the hearts of diabetic mice. Cardiomyocytes were identified as the main contributor to FAK-mediated cardiac inflammation and the involvement of FAK in cultured primary mouse cardiomyocytes and H9c2 cells was identified. Both FAK inhibition or FAK deficiency prevented hyperglycemia-induced inflammatory and fibrotic responses in cardiomyocytes owing to the inhibition of NF-κB. Herein, FAK activation was revealed to FAK directly binding to TAK1, leading to activation of TAK1 and downstream NF-κB signaling pathway. CONCLUSIONS FAK is a key regulator of diabetes-associated myocardial inflammatory injury by directly targeting to TAK1.
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Affiliation(s)
- Bo Jin
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jiong Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yi Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wei Zuo
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China
| | - Bo Hong
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China
| | - Jie Li
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China
| | - Fang Huang
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China
| | - Mengpei Zhang
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China.
| | - Yi Wang
- Department of Gastroenterology, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang, China; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Tang Z, Wang P, Dong C, Zhang J, Wang X, Pei H. Oxidative Stress Signaling Mediated Pathogenesis of Diabetic Cardiomyopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5913374. [PMID: 35103095 PMCID: PMC8800599 DOI: 10.1155/2022/5913374] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/03/2022] [Indexed: 02/07/2023]
Abstract
As a serious cardiovascular complication, diabetic cardiomyopathy (DCM) refers to diabetes-related changes in myocardial structure and function, which is obviously different from those cardiomyopathy secondary to hypertension, coronary heart disease, and valvular disease. The clinical features of DCM are left ventricular hypertrophy, myocardial fibrosis, and impaired diastolic function. DCM will lead to cardiac dysfunction, eventually progress to cardiac arrhythmia, heart failure, and sudden cardiac death. At present, the pathogenesis of DCM is complex and not fully elucidated, and oxidative stress (OS), inflammatory response, glucolipid metabolism disorder, etc., are considered as the potential pathophysiological mechanisms. As a consequence, there is no specific and effective treatment for DCM. OS refers to the imbalance between reactive oxygen species (ROS) accumulation and scavenging, oxidation, and antioxidants in vivo, which is widely studied in DCM. Numerous studies have pointed out that regulating the OS signaling pathways and reducing the generation and accumulation of ROS are potential directions for the treatment of DCM. This review summarizes the major OS signaling pathways that are related to the pathogenesis of DCM, providing ideas about further research and therapy.
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Affiliation(s)
- Zhaobing Tang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Peng Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Chao Dong
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Juan Zhang
- Emei Rehabilitation and Sanatorium Center of PLA, Leshan 614201, China
| | - Xiong Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Haifeng Pei
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China
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Peng ML, Fu Y, Wu CW, Zhang Y, Ren H, Zhou SS. Signaling Pathways Related to Oxidative Stress in Diabetic Cardiomyopathy. Front Endocrinol (Lausanne) 2022; 13:907757. [PMID: 35784531 PMCID: PMC9240190 DOI: 10.3389/fendo.2022.907757] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/09/2022] [Indexed: 12/19/2022] Open
Abstract
Diabetes is a chronic metabolic disease that is increasing in prevalence and causes many complications. Diabetic cardiomyopathy (DCM) is a complication of diabetes that is associated with high mortality, but it is not well defined. Nevertheless, it is generally accepted that DCM refers to a clinical disease that occurs in patients with diabetes and involves ventricular dysfunction, in the absence of other cardiovascular diseases, such as coronary atherosclerotic heart disease, hypertension, or valvular heart disease. However, it is currently uncertain whether the pathogenesis of DCM is directly attributable to metabolic dysfunction or secondary to diabetic microangiopathy. Oxidative stress (OS) is considered to be a key component of its pathogenesis. The production of reactive oxygen species (ROS) in cardiomyocytes is a vicious circle, resulting in further production of ROS, mitochondrial DNA damage, lipid peroxidation, and the post-translational modification of proteins, as well as inflammation, cardiac hypertrophy and fibrosis, ultimately leading to cell death and cardiac dysfunction. ROS have been shown to affect various signaling pathways involved in the development of DCM. For instance, OS causes metabolic disorders by affecting the regulation of PPARα, AMPK/mTOR, and SIRT3/FOXO3a. Furthermore, OS participates in inflammation mediated by the NF-κB pathway, NLRP3 inflammasome, and the TLR4 pathway. OS also promotes TGF-β-, Rho-ROCK-, and Notch-mediated cardiac remodeling, and is involved in the regulation of calcium homeostasis, which impairs ATP production and causes ROS overproduction. In this review, we summarize the signaling pathways that link OS to DCM, with the intention of identifying appropriate targets and new antioxidant therapies for DCM.
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Affiliation(s)
- Meng-ling Peng
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Yu Fu
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Chu-wen Wu
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Ying Zhang
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Hang Ren
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, China
| | - Shan-shan Zhou
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Shan-shan Zhou,
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Beneficial effects of metformin supplementation in hypothalamic paraventricular nucleus and arcuate nucleus of type 2 diabetic rats. Toxicol Appl Pharmacol 2022; 437:115893. [DOI: 10.1016/j.taap.2022.115893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/11/2022] [Accepted: 01/19/2022] [Indexed: 12/13/2022]
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Gao HL, Yu XJ, Zhang Y, Wang CL, Lei YM, Yu JY, Zong DM, Liu KL, Zhang DD, Li Y, Tian H, Zhang NP, Kang YM. Astaxanthin Ameliorates Blood Pressure in Salt-Induced Prehypertensive Rats Through ROS/MAPK/NF-κB Pathways in the Hypothalamic Paraventricular Nucleus. Cardiovasc Toxicol 2021; 21:1045-1057. [PMID: 34537923 DOI: 10.1007/s12012-021-09695-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
Astaxanthin (AST) has a variety of biochemical effects, including anti-inflammatory, antioxidative, and antihypertensive functions. The aim of the present study was to determine whether AST ameliorates blood pressure in salt-induced prehypertensive rats by ROS/MAPK/NF-κB pathways in hypothalamic paraventricular nucleus.To explore the central effects of AST on the development of blood pressure, prehypertensive rats were induced by a high-salt diet (HS, 8% NaCl) and its control groups were treated with normal-salt diet (NS, 0.3% NaCl). The Dahl salt-sensitive (S) rats with HS diet for 6 weeks received AST or vehicle by gastric perfusion for 6 weeks. Compared to those with NS diet, rats with HS diet exhibited increased mean arterial pressure (MAP) and heart rate (HR). These increases were associated with higher plasma level of norepinephrine (NE), interleukin 1β (IL-1β), and interleukin 6 (IL-6); elevated PVN level of reactive oxygen species (ROS), NOX2, and NOX4, that of IL-1β, IL-6, monocyte chemotactic protein 1 (MCP-1), tyrosine hydroxylase (TH), phosphorylation extracellular-signal-regulated kinase (p-ERK1/2), phosphorylation Jun N-terminal kinases (p-JNK), nuclear factor-kappa B (NF-κB) activity; and lower levels of IL-10, superoxide dismutase (SOD), and catalase (CAT) in the PVN. In addition, our data demonstrated that chronic AST treatment ameliorated these changes in the HS but not NS diet rats. These data suggested that AST could alleviate prehypertensive response in HS-induced prehypertension through ROS/MAPK/NF-κB pathways in the PVN.
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Affiliation(s)
- Hong-Li Gao
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Xiao-Jing Yu
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Yan Zhang
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Chen-Long Wang
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Yi-Ming Lei
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Jia-Yue Yu
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Dong-Miao Zong
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Kai-Li Liu
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Dong-Dong Zhang
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Ying Li
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Hua Tian
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China
| | - Nian-Ping Zhang
- Department of Clinical Medicine, Medical School of Shanxi Datong University, Datong, China.
| | - Yu-Ming Kang
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry of China, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi Engineering and Research Center of Vaccine, Xi'an, 710061, China.
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Du D, Zhang Y, Zhu C, Chen H, Sun J. Metabolic Regulation of Hypoxia-Inducible Factors in Hypothalamus. Front Endocrinol (Lausanne) 2021; 12:650284. [PMID: 33763034 PMCID: PMC7984363 DOI: 10.3389/fendo.2021.650284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/29/2021] [Indexed: 12/30/2022] Open
Abstract
The earliest hypoxia-inducible factor (HIF) function was to respond to hypoxia or hypoxic conditions as a transcription factor. Recent studies have expanded our understanding of HIF, and a large amount of evidence indicates that HIF has an essential effect on central regulation of metabolism. The central nervous system's response to glucose, inflammation, and hormones' main influence on systemic metabolism are all regulated by HIF to varying degrees. In the hypothalamus, HIF mostly plays a role in inhibiting energy uptake and promoting energy expenditure, which depends not only on the single effect of HIF or a single part of the hypothalamus. In this paper, we summarize the recent progress in the central regulation of metabolism, describe in detail the role of HIF in various functions of the hypothalamus and related molecular mechanisms, and reveal that HIF is deeply involved in hypothalamic-mediated metabolic regulation.
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Affiliation(s)
- Dan Du
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yugang Zhang
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Canjun Zhu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, College of Animal Science, South China Agricultural University, Guangzhou, China
- *Correspondence: Jia Sun, ; Hong Chen, ; Canjun Zhu,
| | - Hong Chen
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Jia Sun, ; Hong Chen, ; Canjun Zhu,
| | - Jia Sun
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Jia Sun, ; Hong Chen, ; Canjun Zhu,
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Li X, Bian Y, Pang P, Yu S, Wang X, Gao Y, Liu K, Liu Q, Yuan Y, Du W. Inhibition of Dectin-1 in mice ameliorates cardiac remodeling by suppressing NF-κB/NLRP3 signaling after myocardial infarction. Int Immunopharmacol 2020; 80:106116. [PMID: 31978804 DOI: 10.1016/j.intimp.2019.106116] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/16/2019] [Accepted: 12/04/2019] [Indexed: 12/15/2022]
Abstract
The myocardial inflammatory response is a consequence of myocardial infarction (MI), which may deteriorate cardiac remodeling and lead to dysfunction in the heart post-MI. Dectin-1 is a c-type lectin, which has been shown to regulate innate immune responses to pathogens. However, the role of Dectin-1 in the heart diseases remains largely unknown. In this study, we aimed to investigate the effects of Dectin-1 on cardiac remodeling post-MI. We found that cardiac Dectin-1 mRNA and protein expressions were significantly elevated in C57BL/6 mice after MI. In vitro, hypoxia induced cardiomyocyte injury in parallel with increased Dectin-1 protein expression. Knockdown of Dectin-1 remarkably attenuated cardiomyocyte death under hypoxia and lipopolysaccharide (LPS) stimulation. In vivo administration of adeno-associated virus serotype 9 mediated silencing of Dectin-1, which significantly decreased cardiac fibrosis, dilatation, and improved cardiac function in the mice post-MI. At the molecular level, downregulation of Dectin-1 dramatically suppressed up-regulation of nuclear factor-κB (NF-κB), nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3), and the inflammatory genes involved in fibrogenesis and cardiac remodeling after MI. Furthermore, treatment with BAY11-7082, an inhibitor of NF-κB, repressed the activation of NF-κB, and attenuated LPS induced elevation of NLRP3 and cell death in cardiomyocytes. Collectively, upregulation of Dectin-1 in cardiomyocytes post-MI contributes to cardiac remodeling and cardiac dysfunction at least partially by activating NF-κB and NLRP3. This study identified Dectin-1 as a promising therapeutic target for ischemic heart disease.
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Affiliation(s)
- Xin Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Yu Bian
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Ping Pang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Shuting Yu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Xiuzhu Wang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Yuelin Gao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Kuiwu Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Qian Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China
| | - Ye Yuan
- Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin 150086, China.
| | - Weijie Du
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150081, PR China; Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin 150081, PR China.
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