1
|
Lin X, Zhang H, Chu Y, Zhang Y, Xu C, Xie H, Ruan Q, Lin J, Huang C, Chai D. Honokiol ameliorates angiotensin II-induced cardiac hypertrophy by promoting dissociation of the Nur77-LKB1 complex and activating the AMPK pathway. J Cell Mol Med 2024; 28:e18028. [PMID: 37985436 PMCID: PMC10805491 DOI: 10.1111/jcmm.18028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/15/2023] [Accepted: 10/24/2023] [Indexed: 11/22/2023] Open
Abstract
Pathological cardiac hypertrophy is a key contributor to heart failure, and the molecular mechanisms underlying honokiol (HNK)-mediated cardioprotection against this condition remain worth further exploring. This study aims to investigate the effect of HNK on angiotensin II (Ang II)-induced myocardial hypertrophy and elucidate the underlying mechanisms. Sprague-Dawley rats were exposed to Ang II infusion, followed by HNK or vehicle treatment for 4 weeks. Our results showed that HNK treatment protected against Ang II-induced myocardial hypertrophy, fibrosis and dysfunction in vivo and inhibited Ang II-induced hypertrophy in neonatal rat ventricular myocytes in vitro. Mechanistically, HNK suppressed the Ang II-induced Nur77 expression at the transcriptional level and promoted ubiquitination-mediated degradation of Nur77, leading to dissociation of the Nur77-LKB1 complex. This facilitated the translocation of LKB1 into the cytoplasm and activated the LKB1-AMPK pathway. Our findings suggest that HNK attenuates pathological remodelling and cardiac dysfunction induced by Ang II by promoting dissociation of the Nur77-LKB1 complex and subsequent activation of AMPK signalling. This study uncovers a novel role of HNK on the LKB1-AMPK pathway to protect against cardiac hypertrophy.
Collapse
Affiliation(s)
- Xiaoyan Lin
- Echocardiological Department, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Hailin Zhang
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Yong Chu
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Yuze Zhang
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Changsheng Xu
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Hong Xie
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Qinyun Ruan
- Echocardiological Department, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Jinxiu Lin
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Chun‐Kai Huang
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
| | - Dajun Chai
- Cardiovascular Department, Fujian Institute of Hypertension, The First Affiliated HospitalFujian Medical UniversityFuzhouChina
- Cardiovascular Department, National Regional Medical Center, Binhai Branch of the First Affiliated HospitalFujian Medical UniversityFuzhouChina
| |
Collapse
|
2
|
Li Z, Hu O, Xu S, Lin C, Yu W, Ma D, Lu J, Liu P. The SIRT3-ATAD3A axis regulates MAM dynamics and mitochondrial calcium homeostasis in cardiac hypertrophy. Int J Biol Sci 2024; 20:831-847. [PMID: 38250153 PMCID: PMC10797690 DOI: 10.7150/ijbs.89253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/18/2023] [Indexed: 01/23/2024] Open
Abstract
Mitochondria are energy-producing organelles that are mobile and harbor dynamic network structures. Although mitochondria and endoplasmic reticulum (ER) play distinct cellular roles, they are physically connected to maintain functional homeostasis. Abnormal changes in this interaction have been linked to pathological states, including cardiac hypertrophy. However, the exact regulatory molecules and mechanisms are yet to be elucidated. Here, we report that ATPase family AAA-domain containing protein 3A (ATAD3A) is an essential regulator of ER-mitochondria interplay within the mitochondria-associated membrane (MAM). ATAD3A prevents isoproterenol (ISO)-induced mitochondrial calcium accumulation, improving mitochondrial dysfunction and ER stress, which preserves cardiac function and attenuates cardiac hypertrophy. We also find that ATAD3A is a new substrate of NAD+-dependent deacetylase Sirtuin 3 (SIRT3). Notably, the heart mitochondria of SIRT3 knockout mice exhibited excessive formation of MAMs. Mechanistically, ATAD3A specifically undergoes acetylation, which reduces self-oligomerization and promotes cardiac hypertrophy. ATAD3A oligomerization is disrupted by acetylation at K134 site, and ATAD3A monomer closely interacts with the IP3R1-GRP75-VDAC1 complex, which leads to mitochondrial calcium overload and dysfunction. In summary, ATAD3A localizes to the MAMs, where it protects the homeostasis of ER-mitochondria contacts, quenching mitochondrial calcium overload and keeping mitochondrial bioenergetics unresponsive to ER stress. The SIRT3-ATAD3A axis represents a potential therapeutic target for cardiac hypertrophy.
Collapse
Affiliation(s)
- Zeyu Li
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ou Hu
- Guangdong Province Engineering Laboratory for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Suowen Xu
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, 230001, China
| | - Chenjia Lin
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenjing Yu
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Dinghu Ma
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jing Lu
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Peiqing Liu
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| |
Collapse
|
3
|
Davies DM, van den Handel K, Bharadwaj S, Lengefeld J. Cellular enlargement - A new hallmark of aging? Front Cell Dev Biol 2022; 10:1036602. [PMID: 36438561 PMCID: PMC9688412 DOI: 10.3389/fcell.2022.1036602] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 10/17/2022] [Indexed: 12/03/2023] Open
Abstract
Years of important research has revealed that cells heavily invest in regulating their size. Nevertheless, it has remained unclear why accurate size control is so important. Our recent study using hematopoietic stem cells (HSCs) in vivo indicates that cellular enlargement is causally associated with aging. Here, we present an overview of these findings and their implications. Furthermore, we performed a broad literature analysis to evaluate the potential of cellular enlargement as a new aging hallmark and to examine its connection to previously described aging hallmarks. Finally, we highlight interesting work presenting a correlation between cell size and age-related diseases. Taken together, we found mounting evidence linking cellular enlargement to aging and age-related diseases. Therefore, we encourage researchers from seemingly unrelated areas to take a fresh look at their data from the perspective of cell size.
Collapse
Affiliation(s)
- Daniel M. Davies
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Kim van den Handel
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Soham Bharadwaj
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Jette Lengefeld
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
- Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
4
|
Zhang L, Li G, Liang B, Su X, Xie H, Sun H, Wu G. Integrative analyses of immune-related biomarkers and associated mechanisms in coronary heart disease. BMC Med Genomics 2022; 15:219. [PMID: 36266609 PMCID: PMC9585797 DOI: 10.1186/s12920-022-01375-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
Various studies showed that the effect of immune activation is pro-atherogenic and coronary heart disease (CHD) should therefore be considered an autoimmune disease. This study aimed to identify potential immune-related biomarkers, pathways, and the potential regulatory networks underlying CHD. Differentially expressed genes (DEGs) between CHD and control samples were determined by analyzing GSE71226 and GSE9128. The overlapping differential expression immune-related genes (DE-IRGs) for CHD were identified by analyzing the ImmPort database and two GEO databases. A total of 384 DE-IRGs were identified. Subsequently, comprehensive enrichment analyses suggested that DE-IRGs were enriched in immune-related pathways, including autoimmune thyroid disease, the intestinal immune network for IGA production, and downstream signaling events of B cell receptors. The signature of DE-IRGs was validated using an external independent dataset GSE20681 (AUC = 0.875). Furthermore, we conducted protein–protein interaction network analysis and identified eight hub genes, which were most enriched in regulation of defense response, NF-κB signaling pathway, regulation of JNK cascade, and regulation of cytokine production. Moreover, networks of miRNAs-mRNAs and transcription factors (TFs)-mRNA underlying the integrated data were established, involving eight miRNAs and 76 TF-targeting hub genes. Ultimately, 17 SNPs in miRNA-mediated gene networks were identified. We screened potential immune-related genes in CHD and constructed miRNA-mRNA-TF and SNP-miRNA networks, which not only provide inspired insights into the occurrence and the molecular mechanisms of CHD but also lay a foundation for targeting potential biomarkers using immunotherapy and for understanding the molecular mechanisms of CHD.
Collapse
Affiliation(s)
- Lianbo Zhang
- Department of Clinical Pharmacy, Jilin Province FAW General Hospital, Changchun, China
| | - Guibin Li
- Department of Orthopaedics, Jilin Province FAW General Hospital, Changchun, China
| | - Bo Liang
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoli Su
- Department of Human Resources, Jilin Province FAW General Hospital, Changchun, China
| | - Haolin Xie
- Medical Association Office, Jilin Province FAW General Hospital, Changchun, China
| | - Hongxia Sun
- Department of Pharmacology, School of Pharmacy, Beihua University, Jilin, China
| | - Ge Wu
- Department of Clinical Pharmacy, Jilin Province FAW General Hospital, Changchun, China.
| |
Collapse
|
5
|
Zhang H, Geng N, Sun L, Che X, Xiao Q, Tao Z, Chen L, Lyu Y, Shao Q, Pu J. Nuclear Receptor Nur77 Protects Against Abdominal Aortic Aneurysm by Ameliorating Inflammation Via Suppressing LOX-1. J Am Heart Assoc 2021; 10:e021707. [PMID: 34325521 PMCID: PMC8475661 DOI: 10.1161/jaha.121.021707] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background Abdominal aortic aneurysm (AAA) is a life-threatening vascular disorder characterized by chronic inflammation of the aortic wall, which lacks effective pharmacotherapeutic remedies and has an extremely high mortality. Nuclear receptor NR4A1 (Nur77) functions in various chronic inflammatory diseases. However, the influence of Nur77 on AAA has remained unclear. Herein, we sought to determine the effects of Nur77 on the development of AAA. Methods and Results We observed that Nur77 expression decreased significantly in human and mice AAA lesions. Deletion of Nur77 accelerated the development of AAA in mice, as evidenced by increased AAA incidence, abdominal aortic diameters, elastin fragmentation, and collagen content. Consistent with genetic manipulation, pharmacological activation of Nur77 by celastrol showed beneficial effects against AAA. Microscopic and molecular analyses indicated that the detrimental effects of Nur77 deficiency were associated with aggravated macrophage infiltration in AAA lesions and increased pro-inflammatory cytokines secretion and matrix metalloproteinase (MMP-9) expression. Bioinformatics analyses further revealed that LOX-1 was upregulated by Nur77 deficiency and consequently increased the expression of cytokines and MMP-9. Moreover, rescue experiments verified that LOX-1 notably aggravated inflammatory response, an effect that was blunted by Nur77. Conclusions This study firstly demonstrated a crucial role of Nur77 in the formation of AAA by targeting LOX-1, which implicated Nur77 might be a potential therapeutic target for AAA.
Collapse
Affiliation(s)
- Hengyuan Zhang
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Na Geng
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Lingyue Sun
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Xinyu Che
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Qingqing Xiao
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Zhenyu Tao
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Long Chen
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Yuyan Lyu
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Qin Shao
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| | - Jun Pu
- Department of Cardiology Renji HospitalSchool of Medicine, Shanghai Jiao Tong University Shanghai China
| |
Collapse
|
6
|
Luo H, Wu PF, Cao Y, Jin M, Shen TT, Wang J, Huang JG, Han QQ, He JG, Deng SL, Ni L, Hu ZL, Long LH, Wang F, Chen JG. Angiotensin-Converting Enzyme Inhibitor Rapidly Ameliorates Depressive-Type Behaviors via Bradykinin-Dependent Activation of Mammalian Target of Rapamycin Complex 1. Biol Psychiatry 2020; 88:415-425. [PMID: 32220499 DOI: 10.1016/j.biopsych.2020.02.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/22/2020] [Accepted: 02/03/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Angiotensin-converting enzyme inhibitors (ACEIs) are widely prescribed antihypertensive agents. Intriguingly, case reports and clinical trials have indicated that ACEIs, including captopril and lisinopril, may have a rapid mood-elevating effect in certain patients, but few experimental studies have investigated their value as fast-onset antidepressants. METHODS The present study consisted of a series of experiments using biochemical assays, immunohistochemistry, and behavioral techniques to examine the effect and mechanism of captopril on depressive-like behavior in 2 animal models, the chronic unpredictable stress model and the chronic social defeat stress model. RESULTS Captopril (19.5 or 39 mg/kg, intraperitoneal injection) exerted rapid antidepressant activity in mice treated under the chronic unpredictable stress model and mice treated under the chronic social defeat stress model. Pharmacokinetic analysis revealed that captopril crossed the blood-brain barrier and that lisinopril, another ACEI with better blood-brain barrier permeability, exerted a faster and longer-lasting effect at a same molar equivalent dose. This antidepressant effect seemed to be independent of the renin-angiotensin system, but dependent on the bradykinin (BK) system, since the decreased BK detected in the stressed mice could be reversed by captopril. The hypofunction of the downstream effector of BK, Cdc42 (cell division control protein 42) homolog, contributed to the stress-induced loss of dendritic spines, which was rapidly reversed by captopril via activating the mTORC1 (mammalian target of rapamycin complex 1) pathway. CONCLUSIONS Our findings indicate that the BK-dependent activation of mTORC1 may represent a promising mechanism underlying antidepressant pharmacology. Considering their affordability and availability, ACEIs may emerge as a novel fast-onset antidepressant, especially for patients with comorbid depression and hypertension.
Collapse
Affiliation(s)
- Han Luo
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China; Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yu Cao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ming Jin
- Department of Pharmaceutics, College of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Tian-Tian Shen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ji Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian-Geng Huang
- Department of Pharmaceutics, College of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qian-Qian Han
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jin-Gang He
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Si-Long Deng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lan Ni
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China; Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China; Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China; The Collaborative-Innovation Center for Brain Science, Wuhan, Hubei, China.
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, Hubei, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, Hubei, China; Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China; The Collaborative-Innovation Center for Brain Science, Wuhan, Hubei, China.
| |
Collapse
|
7
|
Neuron-derived orphan receptor-1 modulates cardiac gene expression and exacerbates angiotensin II-induced cardiac hypertrophy. Clin Sci (Lond) 2020; 134:359-377. [PMID: 31985010 DOI: 10.1042/cs20191014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/21/2020] [Accepted: 01/27/2020] [Indexed: 12/22/2022]
Abstract
Hypertensive cardiac hypertrophy (HCH) is a common cause of heart failure (HF), a major public health problem worldwide. However, the molecular bases of HCH have not been completely elucidated. Neuron-derived orphan receptor-1 (NOR-1) is a nuclear receptor whose role in cardiac remodelling is poorly understood. The aim of the present study was to generate a transgenic mouse over-expressing NOR-1 in the heart (TgNOR-1) and assess the impact of this gain-of-function on HCH. The CAG promoter-driven transgenesis led to viable animals that over-expressed NOR-1 in the heart, mainly in cardiomyocytes and also in cardiofibroblasts. Cardiomyocytes from TgNOR-1 exhibited an enhanced cell surface area and myosin heavy chain 7 (Myh7)/Myh6 expression ratio, and increased cell shortening elicited by electric field stimulation. TgNOR-1 cardiofibroblasts expressed higher levels of myofibroblast markers than wild-type (WT) cells (α 1 skeletal muscle actin (Acta1), transgelin (Sm22α)) and were more prone to synthesise collagen and migrate. TgNOR-1 mice experienced an age-associated remodelling of the left ventricle (LV). Angiotensin II (AngII) induced the cardiac expression of NOR-1, and NOR-1 transgenesis exacerbated AngII-induced cardiac hypertrophy and fibrosis. This effect was associated with the up-regulation of hypertrophic (brain natriuretic peptide (Bnp), Acta1 and Myh7) and fibrotic markers (collagen type I α 1 chain (Col1a1), Pai-1 and lysyl oxidase-like 2 (Loxl2)). NOR-1 transgenesis up-regulated two key genes involved in cardiac hypertrophy (Myh7, encoding for β-myosin heavy chain (β-MHC)) and fibrosis (Loxl2, encoding for the extracellular matrix (ECM) modifying enzyme, Loxl2). Interestigly, in transient transfection assays, NOR-1 drove the transcription of Myh7 and Loxl2 promoters. Our findings suggest that NOR-1 is involved in the transcriptional programme leading to HCH.
Collapse
|
8
|
Ashraf S, Yilmaz G, Chen X, Harmancey R. Dietary Fat and Sugar Differentially Affect β-Adrenergic Stimulation of Cardiac ERK and AKT Pathways in C57BL/6 Male Mice Subjected to High-Calorie Feeding. J Nutr 2020; 150:1041-1050. [PMID: 31950177 PMCID: PMC7198302 DOI: 10.1093/jn/nxz342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/16/2019] [Accepted: 12/23/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND High dietary fat and sugar promote cardiac hypertrophy independently from an increase in blood pressure. The respective contribution that each macronutrient exerts on cardiac growth signaling pathways remains unclear. OBJECTIVE The goal of this study was to investigate the mechanisms by which high amounts of dietary fat and sugar affect cardiac growth regulatory pathways. METHODS Male C57BL/6 mice (9 wk old; n = 20/group) were fed a standard rodent diet (STD; kcal% protein-fat-carbohydrate, 29-17-54), a high-fat diet (HFD; 20-60-20), a high-fat and high-sugar Western diet (WD; 20-45-35), a high-sugar diet with mixed carbohydrates (HCD; 20-10-70), or a high-sucrose diet (HSD; 20-10-70). Body composition was assessed weekly by EchoMRI. Whole-body glucose utilization was assessed with an intraperitoneal glucose tolerance test. After 6 wk on diets, mice were treated with saline or 20 mg/kg isoproterenol (ISO), and the activity of cardiac growth regulatory pathways was analyzed by immunoblotting. Data were analyzed by ANOVA with data from the STD group included for references only. RESULTS Compared with HCD and HSD, WD and HFD increased body fat mass 2.7- to 3.8-fold (P < 0.001), induced glucose intolerance (P < 0.001), and increased insulin concentrations >1.5-fold (P < 0.05), thereby enhancing basal and ISO-stimulated AKT phosphorylation at both threonine 308 and serine 473 residues (+25-63%; P < 0.05). Compared with HFD, the high-sugar diets potentiated ISO-mediated stimulation of the glucose-sensitive kinases PYK2 (>47%; P < 0.05 for HCD and HSD) and ERK (>34%; P < 0.05 for WD, HCD, and HSD), thereby leading to increased phosphorylation of protein synthesis regulator S6K1 at threonine 389 residue (>64%; P < 0.05 for WD, HCD, and HSD). CONCLUSIONS Dietary fat and sugar affect cardiac growth signaling pathways in C57BL/6 mice through distinct and additive mechanisms. The findings may provide new insights into the role of overnutrition in pathological cardiac remodeling.
Collapse
Affiliation(s)
- Sadia Ashraf
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Gizem Yilmaz
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Xu Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Romain Harmancey
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Obesity Research, University of Mississippi Medical Center, Jackson, MS,Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS,Address correspondence to RH (e-mail: )
| |
Collapse
|
9
|
Shibata S, Ishizawa K, Wang Q, Xu N, Fujita T, Uchida S, Lifton RP. ULK1 Phosphorylates and Regulates Mineralocorticoid Receptor. Cell Rep 2019; 24:569-576. [PMID: 30021155 DOI: 10.1016/j.celrep.2018.06.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/09/2018] [Accepted: 06/15/2018] [Indexed: 12/26/2022] Open
Abstract
Mineralocorticoid receptor (MR) signaling regulates both renal Na-Cl reabsorption and K+ excretion. We previously demonstrated that phosphorylation of S843 in the MR ligand-binding domain in renal intercalated cells is involved in the balance of these activities by regulating ligand binding and signaling. However, the kinase that phosphorylates MRS843 is unknown. Using a high-throughput screen assay of 197 kinases, we found that ULK1 is the principal kinase that is responsible for the phosphorylation of MRS843. The results were confirmed by in vitro kinase assay, mass spectrometry, and siRNA knockdown experiments. Notably, phosphorylation at MRS843 was markedly reduced in ULK1/2 double knockout mouse embryonic fibroblasts. Upstream, we show that ULK1 activity is inhibited by phosphorylation induced by angiotensin II via mTOR in cell culture and in vivo. These findings implicate mTOR and ULK1 as regulators of MR activity in intercalated cells, a pathway that is critical for maintaining electrolyte homeostasis.
Collapse
Affiliation(s)
- Shigeru Shibata
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan; Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan.
| | - Kenichi Ishizawa
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Qin Wang
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan; Department of Nephrology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Ning Xu
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Toshiro Fujita
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Shunya Uchida
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Richard P Lifton
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06511, USA; Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY 10065, USA.
| |
Collapse
|
10
|
Medzikovic L, van Roomen C, Baartscheer A, van Loenen PB, de Vos J, Bakker ENTP, Koenis DS, Damanafshan A, Creemers EE, Arkenbout EK, de Vries CJM, de Waard V. Nur77 protects against adverse cardiac remodelling by limiting neuropeptide Y signalling in the sympathoadrenal-cardiac axis. Cardiovasc Res 2019; 114:1617-1628. [PMID: 29850786 DOI: 10.1093/cvr/cvy125] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 05/23/2018] [Indexed: 12/16/2022] Open
Abstract
Aims Cardiac remodelling and heart failure are promoted by persistent sympathetic activity. We recently reported that nuclear receptor Nur77 may protect against sympathetic agonist-induced cardiac remodelling in mice. The sympathetic co-transmitter neuropeptide Y (NPY) is co-released with catecholamines and is a known cardiac modulator and predictor of heart failure mortality. Recently, transcriptome analyses revealed NPY as a putative target of Nur77. In this study, we assess whether Nur77 modulates adverse cardiac remodelling via NPY signalling. Methods and results Nur77 represses NPY expression in the PC12 adrenal chromaffin cell line. Accordingly, NPY levels are higher in adrenal gland, plasma, and heart from Nur77-KO compared to wild-type mice. Conditioned medium from Nur77-silenced chromaffin cells and serum from Nur77-KO mice induce marked hypertrophy in cultured neonatal rat cardiomyocytes, which is inhibited by the NPY type 1 receptor (NPY1R) antagonist BIBO3304. In cardiomyocytes from Nur77-KO mice, intracellular Ca2+ is increased partially via the NPY1R. This is independent from elevated circulating NPY since cardiomyocyte-specific Nur77-deficient mice (CM-KO) do not have elevated circulating NPY, but do exhibit BIBO3304-sensitive, increased cardiomyocyte intracellular Ca2+. In vivo, this translates to NPY1R antagonism attenuating cardiac calcineurin activity and isoproterenol-induced cardiomyocyte hypertrophy and fibrosis in full-body Nur77-KO mice, but not in CM-KO mice. Conclusions The cardioprotective action of Nur77 can be ascribed to both inhibition of circulating NPY levels and to cardiomyocyte-specific modulation of NPY-NPY1R signalling. These results reveal the underlying mechanism of Nur77 as a promising modifier gene in heart failure.
Collapse
Affiliation(s)
- Lejla Medzikovic
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Cindy van Roomen
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Antonius Baartscheer
- Department of Experimental Cardiology, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Pieter B van Loenen
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Judith de Vos
- Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Erik N T P Bakker
- Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Duco S Koenis
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Amin Damanafshan
- Department of Experimental Cardiology, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Esther E Creemers
- Department of Experimental Cardiology, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - E Karin Arkenbout
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam,The Netherlands.,Department of Cardiology, Tergooi Hospital, Rijksstraatweg 1, AN, Blaricum, The Netherlands
| | - Carlie J M de Vries
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| | - Vivian de Waard
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Academic Medical Center, University of Amsterdam, Meibergdreef 15, AZ, Amsterdam, The Netherlands
| |
Collapse
|
11
|
Effects of 6-mercaptopurine in pressure overload induced right heart failure. PLoS One 2019; 14:e0225122. [PMID: 31714926 PMCID: PMC6850541 DOI: 10.1371/journal.pone.0225122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/29/2019] [Indexed: 11/28/2022] Open
Abstract
Background Several antineoplastic drugs have been proposed as new compounds for pulmonary arterial hypertension treatment but many have cardiotoxic side effects. The chemotherapeutic agent 6-mercaptopurine may have an effect in treatment of pulmonary arterial hypertension but at the same time, its effects on the afterload adaption of the right ventricle is unpredictable due to interaction with multiple downstream signalling pathways in the cardiomyocytes. We investigated the direct cardiac effects of 6-mercaptopurine in rats with isolated right heart failure caused by pulmonary trunk banding (PTB). Methods Male Wistar rat weanlings (112±2 g) were randomized to sham operation (sham, n = 10) or PTB. The PTB animals were randomized to placebo (PTB-control, n = 10) and 6-mercaptopurine (7.5 mg/kg/day) groups with treatment start before the PTB procedure (PTB-prevention, n = 10) or two weeks after (PTB-reversal, n = 10). Right ventricular effects were evaluated by echocardiography, cardiac MRI, invasive pressure-volume measurements, and histological and molecular analyses. Results PTB increased right ventricular afterload and caused right ventricular hypertrophy and failure. 6-mercaptopurine did not improve right ventricular function nor reduce right ventricular remodelling in both prevention and reversal studies compared with placebo-treated rats. Conclusion Treatment with 6-mercaptopurine did not have any beneficial or detrimental effects on right ventricular function or remodelling. Our data suggest that treatment of pulmonary arterial hypertension with 6-mercaptopurine is not harmful to the failing right ventricle.
Collapse
|
12
|
Mirchi LF, Chylíková B, Janků M, Šeda O, Liška F. Transcriptomic analysis of left ventricle myocardium in an SHR congenic line with ameliorated cardiac fibrosis. Physiol Res 2019; 68:747-755. [PMID: 31424260 DOI: 10.33549/physiolres.934127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Metabolic syndrome and one of its manifestations, essential hypertension, is an important cause of worldwide morbidity and mortality. Morbidity and mortality associated with hypertension are caused by organ complications. Previously we revealed a decrease of blood pressure and an amelioration of cardiac fibrosis in a congenic line of spontaneously hypertensive rats (SHR), in which a short segment of chromosome 8 (encompassing only 7 genes) was exchanged for a segment of normotensive polydactylous (PD) origin. To unravel the genetic background of this phenotype we compared heart transcriptomes between SHR rat males and this chromosome 8 minimal congenic line (PD5). We found 18 differentially expressed genes, which were further analyzed using annotations from Database for Annotation, Visualization and Integrated Discovery (DAVID). Four of the differentially expressed genes (Per1, Nr4a1, Nr4a3, Kcna5) belong to circadian rhythm pathways, aldosterone synthesis and secretion, PI3K-Akt signaling pathway and potassium homeostasis. We were also able to confirm Nr4a1 2.8x-fold upregulation in PD5 on protein level using Western blotting, thus suggesting a possible role of Nr4a1 in pathogenesis of the metabolic syndrome.
Collapse
Affiliation(s)
- L F Mirchi
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| | | | | | | | | |
Collapse
|
13
|
Liao J, Wang J, Liu Y, Li J, Duan L. Transcriptome sequencing of lncRNA, miRNA, mRNA and interaction network constructing in coronary heart disease. BMC Med Genomics 2019; 12:124. [PMID: 31443660 PMCID: PMC6708182 DOI: 10.1186/s12920-019-0570-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 08/12/2019] [Indexed: 12/15/2022] Open
Abstract
Background Non-coding RNA has been shown to participate in numerous biological and pathological processes and has attracted increasing attention in recent years. Recent studies have demonstrated that long non-coding RNA and micro RNA can interact through various mechanisms to regulate mRNA. Yet the gene-gene interaction has not been investigated in coronary heart disease (CHD). Methods High throughput sequencing were used to identify differentially expressed (DE) lncRNA, miRNA, and mRNA profiles between CHD and healthy control. Gene Oncology (GO), KEGG enrichment analysis were performed. Gene-gene interaction network were constructed and pivotal genes were screened out. Lentivirus-induced shRNA infection and qRT-PCR were performed to validated the gene-gene interactions. Results A total of 62 lncRNAs, 332 miRNAs and 366 mRNAs were differentially expressed between CHD and healthy control. GO and KEGG analysis show that immune related molecular mechanisms and biological processes play a role in CHD. The gene-gene interaction network were constructed and visualized based on Pearson correlation coefficients and starBase database. 6 miRNAs in the network were significantly correlated to left ventricular ejection fraction, total choleterol and homocysteine. 2 lncRNAs (CTA-384D8.35 and CTB-114C7.4 (refseq entry LOC100128059)), 1 miRNA (miR-4497), and 1 mRNA (NR4A1) were the pivotal genes. Lentivirus-induced shRNA infection and qRT-PCR had validated the pivotal gene-gene interactions. Conclusions These results have shown the potential of lncRNA, miRNA, and mRNA as clinical biomarkers and in elucidating pathological mechanisms of CHD from a transcriptomic perspective. Electronic supplementary material The online version of this article (10.1186/s12920-019-0570-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jiangquan Liao
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,National Integrated Traditional and Western Medicine Center for Cardiovascular Disease, China-Japan Friendship Hospital, Beijing, China
| | - Jie Wang
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Yongmei Liu
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jun Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lian Duan
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
14
|
Shibata S. Role of Pendrin in the Pathophysiology of Aldosterone-Induced Hypertension. Am J Hypertens 2019; 32:607-613. [PMID: 30982848 DOI: 10.1093/ajh/hpz054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 11/14/2022] Open
Abstract
The recent advances in genetics and molecular biology have resulted in the characterization of key components that critically regulate renal NaCl transport and blood pressure. Pendrin is a Cl-/HCO3- exchanger that is highly expressed in thyroid, inner ear, and kidney. In the kidney, it is selectively present at the apical membrane in non-α intercalated cells of the connecting tubules and cortical collecting duct. Besides its role in acid/base homeostasis, accumulating studies using various genetically modified animals have provided compelling evidence that pendrin regulates extracellular fluid volume and electrolyte balance at the downstream of aldosterone signaling. We have shown that angiotensin II and aldosterone cooperatively control pendrin abundance partly through mammalian target of rapamycin signaling and mineralocorticoid receptor dephosphorylation, which is necessary for the kidney to prevent extracellular fluid loss and electrolyte disturbances under physiologic perturbations. In line with the experimental observations, several clinical data indicated that the impaired pendrin function can cause fluid and electrolyte abnormalities in humans. The purpose of this review is to provide an update on the recent progress regarding the role of pendrin in fluid and electrolyte homeostasis, as well as in the pathophysiology of hypertension associated with mineralocorticoid receptor signaling.
Collapse
Affiliation(s)
- Shigeru Shibata
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| |
Collapse
|
15
|
Electrolyte transport in the renal collecting duct and its regulation by the renin-angiotensin-aldosterone system. Clin Sci (Lond) 2019; 133:75-82. [PMID: 30622159 DOI: 10.1042/cs20180194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/29/2018] [Accepted: 12/17/2018] [Indexed: 01/13/2023]
Abstract
Distal nephron of the kidney plays key roles in fluid volume and electrolyte homeostasis by tightly regulating reabsorption and excretion of Na+, K+, and Cl- Studies to date demonstrate the detailed electrolyte transport mechanisms in principal cells of the cortical collecting duct, and their regulation by renin-angiotensin-aldosterone system (RAAS). In recent years, however, accumulating data indicate that intercalated cells, another cell type that is present in the cortical collecting duct, also play active roles in the regulation of blood pressure. Notably, pendrin in β-intercalated cells not only controls acid/base homeostasis, but is also one of the key components controlling salt and K+ transport in distal nephron. We have recently shown that pendrin is regulated by the co-ordinated action of angiotensin II (AngII) and aldosterone, and at the downstream of AngII, mammalian target of rapamycin (mTOR) signaling regulates pendrin through inhibiting the kinase unc51-like-kinase 1 and promoting dephosphorylation of mineralocorticoid receptor (MR). In this review, we summarize recent advances in the current knowledge on the salt transport mechanisms in the cortical collecting duct, and their regulation by the RAAS.
Collapse
|
16
|
Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 614] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
Collapse
Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| |
Collapse
|
17
|
Medzikovic L, de Vries CJM, de Waard V. NR4A nuclear receptors in cardiac remodeling and neurohormonal regulation. Trends Cardiovasc Med 2018; 29:429-437. [PMID: 30553703 DOI: 10.1016/j.tcm.2018.11.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/07/2018] [Accepted: 11/26/2018] [Indexed: 01/08/2023]
Abstract
Heart failure is characterized by the constant interplay between the underlying cardiac insult, degree of myocardial dysfunction and the activity of compensatory neurohormonal mechanisms. The sympathetic nervous system (SNS) and renin-angiotensin-aldosterone system (RAAS) become activated to maintain cardiac output; however, their chronic hyperactivity will eventually become deleterious. Several nuclear hormone receptors, including the mineralocorticoid receptor and estrogen receptor, are well-known to modulate cardiac disease. Recently, the subfamily of NR4A nuclear receptors i.e. Nur77, Nurr1 and NOR-1, are emerging as key players in cardiac stress responses, as well as pivotal regulators of neurohormonal mechanisms. In this review, we summarize current literature on NR4A nuclear receptors in the heart and in various components of the SNS, RAAS and immune system and discuss the functional implications for NR4As in cardiac function and disease.
Collapse
Affiliation(s)
- Lejla Medzikovic
- Department of Medical Biochemistry, Amsterdam UMC, University of Amsterdam, Academic Medical Center, Amsterdam Cardiovascular Sciences, Meibergdreef 9, room K1-115, 1105 AZ Amsterdam, The Netherlands
| | - Carlie J M de Vries
- Department of Medical Biochemistry, Amsterdam UMC, University of Amsterdam, Academic Medical Center, Amsterdam Cardiovascular Sciences, Meibergdreef 9, room K1-115, 1105 AZ Amsterdam, The Netherlands
| | - Vivian de Waard
- Department of Medical Biochemistry, Amsterdam UMC, University of Amsterdam, Academic Medical Center, Amsterdam Cardiovascular Sciences, Meibergdreef 9, room K1-115, 1105 AZ Amsterdam, The Netherlands.
| |
Collapse
|
18
|
Dihydromyricetin from ampelopsis grossedentata protects against vascular neointimal formation via induction of TR3. Eur J Pharmacol 2018; 838:23-31. [PMID: 30194942 DOI: 10.1016/j.ejphar.2018.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 11/21/2022]
Abstract
Vine tea has been used as a medicinal herb in traditional Chinese medicine for hundreds of years. As the most abundant ingredient in vine tea, Dihydromyricetin (DHM) has been reported to exert anti-inflammatory, antioxidant, and anti-cardiovascular disease. However, the role of DHM in injury-induced neointimal formation remains poorly characterized. We determined the effects of DHM on ligation-induced carotid artery neointimal formation. We found that ligation-induced carotid artery neointimal formation could be significantly attenuated by DHM treatment. We provide evidence that DHM increases orphan nuclear receptor TR3 expression in smooth muscle cell (SMC) and carotid artery. Moreover, overexpression and loss-of-function strategies of TR3 were done to overexpression and knockdown of TR3, and demonstrate that DHM promotes SMC differentiation, however, inhibits SMC proliferation and migration, via regulating expression of TR3. Collectively, we reveal that DHM may be a therapeutic agent for the treatment of injury-induced vascular diseases.
Collapse
|
19
|
Wu L, Chen L. Characteristics of Nur77 and its ligands as potential anticancer compounds (Review). Mol Med Rep 2018; 18:4793-4801. [PMID: 30272297 PMCID: PMC6236262 DOI: 10.3892/mmr.2018.9515] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 09/05/2018] [Indexed: 01/01/2023] Open
Abstract
Nuclear receptor subfamily 4 group A member 1 (NR4A1; also termed Nur77/TR3/NGFIB), a member of the nuclear receptor superfamily, is expressed as an early response gene to regulate the expression of multiple target genes. Nur77 has the typical structure of a nuclear receptor, including an N‑terminal domain, a DNA binding domain, and a ligand‑binding domain. The expression and localization of Nur77 are closely associated with its roles in cell proliferation and apoptosis. Nur77 was first identified as an orphan receptor, the endogenous ligand of which has not yet been identified; however, an increasing number of compounds targeting Nur77 have been reported to have beneficial effects in the treatment of cancer and other diseases. This review provides a brief overview of the identification, structure, expression and localization, transcriptional role and non‑genomic function of Nur77, and summarizes the ligands that have been shown to interact with Nur77, including cytosporone B, cisplatin, TMPA, PDNPA, CCE9, THPN, Z‑ligustilide, celastrol and bisindole methane compounds, which may potentially be used to treat cancer in humans.
Collapse
Affiliation(s)
- Lingjuan Wu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| | - Liqun Chen
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, P.R. China
| |
Collapse
|
20
|
Fisetin inhibits cardiac hypertrophy by suppressing oxidative stress. J Nutr Biochem 2018; 62:221-229. [PMID: 30312797 DOI: 10.1016/j.jnutbio.2018.08.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 08/22/2018] [Accepted: 08/23/2018] [Indexed: 12/27/2022]
Abstract
Cardiac hypertrophy is a pathophysiological response to various pathological stresses and ultimately leads to heart failure. Oxidative stress is one of the critical processes involved in hypertrophy development. Fisetin, a small molecular flavonoid, has been shown to have anti-oxidative, anti-proliferative and anti-inflammatory properties. However, the effect of fisetin on cardiac hypertrophy remains unknown. In our present study, we showed that fisetin inhibited pressure overload-induced cardiac hypertrophy, improved cardiac function in vivo and suppressed phenylephrine (PE)-induced cardiomyocyte hypertrophy in vitro. Reactive oxygen species (ROS) levels were markedly decreased by fisetin treatment in both hypertrophic hearts and cardiomyocytes. Moreover, fisetin significantly up-regulated the expression of antioxidative genes, including catalase (CAT), superoxide dismutase 1 (SOD1) and heme oxygenase 1 (HO-1). Furthermore, co-treatment with N-acetylcysteine (NAC; ROS scavenger) and fisetin did not have synergistic inhibitory effects on PE-induced cardiomyocyte hypertrophy, indicating that the anti-hypertrophic effects of fisetin are mainly associated with the blockade of oxidative stress. Finally, the pro-hypertrophic signaling pathways, mitogen-activated protein kinase (MAPK) and mammalian target of rapamycin (mTOR) kinase, were found to be suppressed by fisetin after pressure overload and PE treatment. In conclusion, our study revealed that fisetin protects against cardiac hypertrophy and that oxidative stress inhibition may be one of the pivotal mechanisms involved.
Collapse
|
21
|
Zhai CG, Xu YY, Tie YY, Zhang Y, Chen WQ, Ji XP, Mao Y, Qiao L, Cheng J, Xu QB, Zhang C. DKK3 overexpression attenuates cardiac hypertrophy and fibrosis in an angiotensin-perfused animal model by regulating the ADAM17/ACE2 and GSK-3β/β-catenin pathways. J Mol Cell Cardiol 2018; 114:243-252. [DOI: 10.1016/j.yjmcc.2017.11.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 11/13/2017] [Accepted: 11/21/2017] [Indexed: 02/02/2023]
|
22
|
Koentges C, Pepin ME, Müsse C, Pfeil K, Alvarez SVV, Hoppe N, Hoffmann MM, Odening KE, Sossalla S, Zirlik A, Hein L, Bode C, Wende AR, Bugger H. Gene expression analysis to identify mechanisms underlying heart failure susceptibility in mice and humans. Basic Res Cardiol 2017; 113:8. [PMID: 29288409 DOI: 10.1007/s00395-017-0666-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 12/19/2017] [Indexed: 12/27/2022]
Abstract
Genetic factors are known to modulate cardiac susceptibility to ventricular hypertrophy and failure. To determine how strain influences the transcriptional response to pressure overload-induced heart failure (HF) and which of these changes accurately reflect the human disease, we analyzed the myocardial transcriptional profile of mouse strains with high (C57BL/6J) and low (129S1/SvImJ) susceptibility for HF development, which we compared to that of human failing hearts. Following transverse aortic constriction (TAC), C57BL/6J mice developed overt HF while 129S1/SvImJ did not. Despite a milder aortic constriction, impairment of ejection fraction and ventricular remodeling (dilation, fibrosis) was more pronounced in C57BL/6J mice. Similarly, changes in myocardial gene expression were more robust in C57BL/6J (461 genes) compared to 129S1/SvImJ mice (71 genes). When comparing these patterns to human dilated cardiomyopathy (1344 genes), C57BL/6J mice tightly grouped to human hearts. Overlay and bioinformatic analysis of the transcriptional profiles of C57BL/6J mice and human failing hearts identified six co-regulated genes (POSTN, CTGF, FN1, LOX, NOX4, TGFB2) with established link to HF development. Pathway enrichment analysis identified angiotensin and IGF-1 signaling as most enriched putative upstream regulator and pathway, respectively, shared between TAC-induced HF in C57BL/6J mice and in human failing hearts. TAC-induced heart failure in C57BL/6J mice more closely reflects the gene expression pattern of human dilated cardiomyopathy compared to 129S1/SvImJ mice. Unbiased as well as targeted gene expression and pathway analyses identified periostin, angiotensin signaling, and IGF-1 signaling as potential causes of increased HF susceptibility in C57BL/6J mice and as potentially useful drug targets for HF treatment.
Collapse
Affiliation(s)
- Christoph Koentges
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Mark E Pepin
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, 901 19th Street South, BMR2 Rm 506, Birmingham, AL, 35294, USA
| | - Carolyn Müsse
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Katharina Pfeil
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Sonia V Viteri Alvarez
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Natalie Hoppe
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Michael M Hoffmann
- Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Institute for Clinical Chemistry and Laboratory Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Katja E Odening
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Samuel Sossalla
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Andreas Zirlik
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lutz Hein
- Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Institute of Experimental and Clinical Pharmacology, BIOSS Center for Biological Signaling Studies, University of Freiburg, Freiburg, Germany
| | - Christoph Bode
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Adam R Wende
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, 901 19th Street South, BMR2 Rm 506, Birmingham, AL, 35294, USA.
| | - Heiko Bugger
- Cardiology and Angiology I, Heart Center, Freiburg University, Hugstetter Str. 55, 79106, Freiburg, Germany. .,Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| |
Collapse
|
23
|
A proteolytic fragment of histone deacetylase 4 protects the heart from failure by regulating the hexosamine biosynthetic pathway. Nat Med 2017; 24:62-72. [DOI: 10.1038/nm.4452] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 11/06/2017] [Indexed: 12/18/2022]
|
24
|
Dong B, Xue R, Sun Y, Dong Y, Liu C. Sestrin 2 attenuates neonatal rat cardiomyocyte hypertrophy induced by phenylephrine via inhibiting ERK1/2. Mol Cell Biochem 2017; 433:113-123. [PMID: 28497371 DOI: 10.1007/s11010-017-3020-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 03/21/2017] [Indexed: 11/24/2022]
Abstract
Cardiac hypertrophy is an adaptive response triggered by many physiological and pathological conditions and will lead to heart failure eventually. Sestrin 2, which is a stress-responsive protein, was reported to protect heart from ischemia reperfusion injury. However, the role of Sestrin 2 in cardiac hypertrophy remains unknown. In our present study, we aimed to explore the effects of Sestrin 2 on cardiomyocyte hypertrophy. We found that knockdown of Sestrin 2 protein aggravated cardiomyocyte hypertrophy induced by phenylephrine (PE), featured by increased hypertrophic marker ANP and cell surface area. During this process, ERK1/2 cascade was further activated, while p38, JNK1/2, and mTOR signaling pathways were not affected by downregulation of Sestrin 2. Moreover, overexpression of Sestrin 2 protein protected cardiomyocytes from PE-induced hypertrophy and ERK1/2 cascade was suppressed correspondingly. Importantly, pharmacological inhibition of ERK1/2 eliminated the exacerbated hypertrophic phenotype due to Sestrin 2 protein knockdown. In conclusion, we discovered that Sestrin 2 protected against cardiomyocyte hypertrophy induced by PE via inhibiting ERK1/2 signaling.
Collapse
Affiliation(s)
- Bin Dong
- Department of Cardiology, Heart Center, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China
| | - Ruicong Xue
- Department of Cardiology, Heart Center, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China
| | - Yu Sun
- Department of Cardiology, Heart Center, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China
| | - Yugang Dong
- Department of Cardiology, Heart Center, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China.
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China.
| | - Chen Liu
- Department of Cardiology, Heart Center, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, China.
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China.
| |
Collapse
|
25
|
Sun LY, Cai ZY, Pu J, Li J, Shen JY, Yang CD, He B. 5-Aminosalicylic Acid Attenuates Monocrotaline-Induced Pulmonary Arterial Hypertension in Rats by Increasing the Expression of Nur77. Inflammation 2017; 40:806-817. [DOI: 10.1007/s10753-017-0525-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
26
|
Vega RB, Kelly DP. Cardiac nuclear receptors: architects of mitochondrial structure and function. J Clin Invest 2017; 127:1155-1164. [PMID: 28192373 DOI: 10.1172/jci88888] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The adult heart is uniquely designed and equipped to provide a continuous supply of energy in the form of ATP to support persistent contractile function. This high-capacity energy transduction system is the result of a remarkable surge in mitochondrial biogenesis and maturation during the fetal-to-adult transition in cardiac development. Substantial evidence indicates that nuclear receptor signaling is integral to dynamic changes in the cardiac mitochondrial phenotype in response to developmental cues, in response to diverse postnatal physiologic conditions, and in disease states such as heart failure. A subset of cardiac-enriched nuclear receptors serve to match mitochondrial fuel preferences and capacity for ATP production with changing energy demands of the heart. In this Review, we describe the role of specific nuclear receptors and their coregulators in the dynamic control of mitochondrial biogenesis and energy metabolism in the normal and diseased heart.
Collapse
|
27
|
Wang B, Zeng H, Wen Z, Chen C, Wang DW. CYP2J2 and its metabolites (epoxyeicosatrienoic acids) attenuate cardiac hypertrophy by activating AMPKα2 and enhancing nuclear translocation of Akt1. Aging Cell 2016; 15:940-52. [PMID: 27416746 PMCID: PMC5013012 DOI: 10.1111/acel.12507] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2016] [Indexed: 12/17/2022] Open
Abstract
Cytochrome P450 epoyxgenase 2J2 and epoxyeicosatrienoic acids (EETs) are known to protect against cardiac hypertrophy and heart failure, which involve the activation of 5′‐AMP‐activated protein kinase (AMPK) and Akt. Although the functional roles of AMPK and Akt are well established, the significance of cross talk between them in the development of cardiac hypertrophy and antihypertrophy of CYP2J2 and EETs remains unclear. We investigated whether CYP2J2 and its metabolites EETs protected against cardiac hypertrophy by activating AMPKα2 and Akt1. Moreover, we tested whether EETs enhanced cross talk between AMPKα2 and phosphorylated Akt1 (p‐Akt1), and stimulated nuclear translocation of p‐Akt1, to exert their antihypertrophic effects. AMPKα2−/− mice that overexpressed CYP2J2 in heart were treated with Ang II for 2 weeks. Interestingly, overexpression of CYP2J2 suppressed cardiac hypertrophy and increased levels of atrial natriuretic peptide (ANP) in the heart tissue and plasma of wild‐type mice but not AMPKα2−/− mice. The CYP2J2 metabolites, 11,12‐EET, activated AMPKα2 to induce nuclear translocation of p‐Akt1 selectively, which increased the production of ANP and therefore inhibited the development of cardiac hypertrophy. Furthermore, by co‐immunoprecipitation analysis, we found that AMPKα2β2γ1 and p‐Akt1 interact through the direct binding of the AMPKγ1 subunit to the Akt1 protein kinase domain. This interaction was enhanced by 11,12‐EET. Our studies reveal a novel mechanism in which CYP2J2 and EETs enhanced Akt1 nuclear translocation through interaction with AMPKα2β2γ1 and protect against cardiac hypertrophy and suggest that overexpression of CYP2J2 might have clinical potential to suppress cardiac hypertrophy and heart failure.
Collapse
Affiliation(s)
- Bei Wang
- Division of Cardiology Department of Internal Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China
| | - Hesong Zeng
- Division of Cardiology Department of Internal Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China
| | - Zheng Wen
- Division of Cardiology Department of Internal Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China
| | - Chen Chen
- Division of Cardiology Department of Internal Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China
| | - Dao Wen Wang
- Division of Cardiology Department of Internal Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China
| |
Collapse
|
28
|
Qin X, Wang X, Liu F, Morris LE, Wang X, Jiang B, Zhang Y. Gankyrin activates mTORC1 signaling by accelerating TSC2 degradation in colorectal cancer. Cancer Lett 2016; 376:83-94. [PMID: 26975632 DOI: 10.1016/j.canlet.2016.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/19/2016] [Accepted: 03/07/2016] [Indexed: 11/28/2022]
Abstract
Gankyrin is overexpressed in some malignancies. However its roles in colorectal carcinogenesis and underlying mechanisms remain largely unexplored. Here we report that gankyrin promotes the initiation and development of colorectal carcinogenesis by activating mTORC1 signaling through TSC/Rheb dependent mechanism. We further show that Gankyrin overexpression accelerated TSC2 degradation, while knockdown in a panel of colorectal cancer (CRC) cell lines, cell line derived xenografts and CRC patient derived xenograft (PDX) tumors delayed TSC2 degradation, restored the TSC2 protein level, and inhibited mTORC1 signaling and CRC growth. Our findings reveal a unique mechanism by which gankyrin promotes colorectal carcinogenesis and show that gankyrin is a potential therapeutic target to improve the clinical management of CRC.
Collapse
Affiliation(s)
- Xiaoyu Qin
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201900, China
| | - Xinxin Wang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201900, China
| | - Feng Liu
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201900, China
| | - Laura E Morris
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Xiaowen Wang
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Bin Jiang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201900, China
| | - Yanjie Zhang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201900, China.
| |
Collapse
|
29
|
Abstract
Diabetes mellitus is a metabolic homeostasis disease that contributes to additional comorbidities such as cardiovascular disease (CVD) and cancer. It has a long undiagnosed latent period during which there can be irreparable damage to the pancreas and cardiovascular tissues. Recent studies have highlighted the roles of several microRNAs in CVD. Determining the microRNAs that link diabetes mellitus and CVD is an important topic to be explored. In the present review, we discuss the microRNAs that contribute to the progression of diabetes mellitus and CVD and focus on the miR-29 family microRNAs whose expression is upregulated by hyperglycemia and proinflammatory cytokines, the hallmarks of diabetes mellitus. Upregulation of miR-29 expression is a key factor in the loss of pancreatic β cells and development of the first stage of type 1 diabetes mellitus (T1DM). Additionally, miR-29-mediated suppression of myeloid cell leukemia 1 (MCL-1), an important prosurvival protein, underlies Marfan's syndrome, abdominal aortic aneurysm, and diabetes mellitus-associated cardiomyocyte disorganization. Suppression of miR-29 expression and subsequent increase in the prosurvival MCL-1, however, promotes tumor development. Therefore, miR-29 mimics that suppress MCL-1 are hailed as tumor suppressors. The critical question is whether an increase in miR-29 levels is well tolerated in conditions of comorbidities in which insulin resistance is an underlying disease. In light of increasing awareness of the interconnection of diabetes mellitus, CVD, and cancer, it is of utmost importance to understand the mechanism of action of current treatment options on all of the comorbidities and careful evaluation of cardiovascular toxicity must accompany any treatment paradigm that increases miR-29 levels.
Collapse
Affiliation(s)
- Anna Ślusarz
- aDepartment of Medicine bDepartment of Biochemistry, University of Missouri cHarry S. Truman Memorial Veterans Affairs Hospital dDepartment of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, USA
| | | |
Collapse
|
30
|
Peng K, Tian X, Qian Y, Skibba M, Zou C, Liu Z, Wang J, Xu Z, Li X, Liang G. Novel EGFR inhibitors attenuate cardiac hypertrophy induced by angiotensin II. J Cell Mol Med 2016; 20:482-94. [PMID: 26762600 PMCID: PMC4759478 DOI: 10.1111/jcmm.12763] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 11/26/2015] [Indexed: 12/28/2022] Open
Abstract
Cardiac hypertrophy is an important risk factor for heart failure. Epidermal growth factor receptor (EGFR) has been found to play a role in the pathogenesis of various cardiovascular diseases. The aim of this current study was to examine the role of EGFR in angiotensin II (Ang II)-induced cardiac hypertrophy and identify the underlying molecular mechanisms. In this study, we observed that both Ang II and EGF could increase the phospohorylation of EGFR and protein kinase B (AKT)/extracellular signal-regulated kinase (ERK), and then induce cell hypertrophy in H9c2 cells. Both pharmacological inhibitors and genetic silencing significantly reduced Ang II-induced EGFR signalling pathway activation, hypertrophic marker overexpression, and cell hypertrophy. In addition, our results showed that Ang II-induced EGFR activation is mediated by c-Src phosphorylation. In vivo, Ang II treatment significantly led to cardiac remodelling including cardiac hypertrophy, disorganization and fibrosis, accompanied by the activation of EGFR signalling pathway in the heart tissues, while all these molecular and pathological alterations were attenuated by the oral administration with EGFR inhibitors. In conclusion, the c-Src-dependent EGFR activation may play an important role in Ang II-induced cardiac hypertrophy, and inhibition of EGFR by specific molecules may be an effective strategy for the treatment of Ang II-associated cardiac diseases.
Collapse
Affiliation(s)
- Kesong Peng
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xinqiao Tian
- Department of Ultrasonography, The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yuanyuan Qian
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Melissa Skibba
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chunpeng Zou
- Department of Ultrasonography, The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhiguo Liu
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jingying Wang
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zheng Xu
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaokun Li
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| |
Collapse
|
31
|
Cui M, Cai Z, Chu S, Sun Z, Wang X, Hu L, Yi J, Shen L, He B. Orphan Nuclear Receptor Nur77 Inhibits Angiotensin II–Induced Vascular Remodeling via Downregulation of β-Catenin. Hypertension 2016; 67:153-62. [DOI: 10.1161/hypertensionaha.115.06114] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mingli Cui
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhaohua Cai
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shichun Chu
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhe Sun
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xiaolei Wang
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Liuhua Hu
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jing Yi
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Linghong Shen
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ben He
- From the Department of Cardiology, Renji Hospital (M.C., Z.C., S.C., Z.S., X.W., L.H., L.S., B.H.) and Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences (J.Y.), School of Medicine, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
32
|
Orphan nuclear receptor Nur77 affects cardiomyocyte calcium homeostasis and adverse cardiac remodelling. Sci Rep 2015; 5:15404. [PMID: 26486271 PMCID: PMC4613907 DOI: 10.1038/srep15404] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 09/21/2015] [Indexed: 12/22/2022] Open
Abstract
Distinct stressors may induce heart failure. As compensation, β-adrenergic stimulation enhances myocardial contractility by elevating cardiomyocyte intracellular Ca2+ ([Ca2+]i). However, chronic β-adrenergic stimulation promotes adverse cardiac remodelling. Cardiac expression of nuclear receptor Nur77 is enhanced by β-adrenergic stimulation, but its role in cardiac remodelling is still unclear. We show high and rapid Nur77 upregulation in cardiomyocytes stimulated with β-adrenergic agonist isoproterenol. Nur77 knockdown in culture resulted in hypertrophic cardiomyocytes. Ventricular cardiomyocytes from Nur77-deficient (Nur77-KO) mice exhibited elevated diastolic and systolic [Ca2+]i and prolonged action potentials compared to wild type (WT). In vivo, these differences resulted in larger cardiomyocytes, increased expression of hypertrophic genes, and more cardiac fibrosis in Nur77-KO mice upon chronic isoproterenol stimulation. In line with the observed elevated [Ca2+]i, Ca2+-activated phosphatase calcineurin was more active in Nur77-KO mice compared to WT. In contrast, after cardiac pressure overload by aortic constriction, Nur77-KO mice exhibited attenuated remodelling compared to WT. Concluding, Nur77-deficiency results in significantly altered cardiac Ca2+ homeostasis and distinct remodelling outcome depending on the type of insult. Detailed knowledge on the role of Nur77 in maintaining cardiomyocyte Ca2+ homeostasis and the dual role Nur77 plays in cardiac remodelling will aid in developing personalized therapies against heart failure.
Collapse
|
33
|
Yu Y, Cai Z, Cui M, Nie P, Sun Z, Sun S, Chu S, Wang X, Hu L, Yi J, Shen L, He B. The orphan nuclear receptor Nur77 inhibits low shear stress-induced carotid artery remodeling in mice. Int J Mol Med 2015; 36:1547-55. [PMID: 26498924 PMCID: PMC4678158 DOI: 10.3892/ijmm.2015.2375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/05/2015] [Indexed: 01/02/2023] Open
Abstract
Shear stress, particularly low and oscillatory shear stress, plays a critical pathophysiological role in vascular remodeling-related cardiovascular diseases. Growing evidence suggests that the orphan nuclear receptor Nur77 [also known as TR3 or nuclear receptor subfamily 4, group A, member 1 (NR4A1)] is expressed in diseased human vascular tissue and plays an important role in vascular physiology and pathology. In the present study, we used a mouse model of flow-dependent remodeling by partial ligation of the left common carotid artery (LCCA) to define the exact role of Nur77 in vascular remodeling induced by low shear stress. Following vascular remodeling, Nur77 was highly expressed in neointimal vascular smooth muscle cells (VSMCs) in the ligated carotid arteries. The reactive oxygen species (ROS) levels were elevated in the remodeled arteries in vivo and in primary rat VSMCs in vitro following stimulation with platelet-derived growth factor (PDGF). Further in vitro experiments revealed that Nur77 expression was rapidly increased in the VSMCs following stimulation with PDGF and H2O2, whereas treatment with N-acetyl cysteine (NAC, a ROS scavenger) reversed the increase in the protein level of Nur77 induced by H2O2. Moreover, Nur77 overexpression markedly inhibited the proliferation and migration of VSMCs, induced by PDGF. Finally, to determine the in vivo role of Nur77 in low shear stress-induced vascular remodeling, wild-type (WT) and Nur77-deficient mice were subjected to partial ligation of the LCCA. Four weeks following surgery, in the LCCAs of the Nur77-deficient mice, a significant increase in the intima-media area and carotid intima-media thickness was noted, as well as more severe elastin disruption and collagen deposition compared to the WT mice. Immunofluorescence staining revealed an increase in VSMC proliferation [determined by the expression of proliferating cell nuclear antigen (PCNA)] and matrix metalloproteinase 9 (MMP-9) production in the Nur77-deficient mice. There was no difference in the number of intimal apoptotic cells between the groups. Taken together, our results indicate that Nur77 may be a sensor of oxidative stress and an inhibitor of vascular remodeling induced by low shear stress. Nur77, as well as its downstream cell signals, may thus be a potential therapeutic target for the suppression of vascular remodeling.
Collapse
Affiliation(s)
- Ying Yu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Zhaohua Cai
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Mingli Cui
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Peng Nie
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Zhe Sun
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Shiqun Sun
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Shichun Chu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Xiaolei Wang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Liuhua Hu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Jing Yi
- Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Linghong Shen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Ben He
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| |
Collapse
|
34
|
Orphan Nuclear Receptor Nur77 Inhibits Cardiac Hypertrophic Response to Beta-Adrenergic Stimulation. Mol Cell Biol 2015. [PMID: 26195821 DOI: 10.1128/mcb.00229-15] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The orphan nuclear receptor Nur77 plays critical roles in cardiovascular diseases, and its expression is markedly induced in the heart after beta-adrenergic receptor (β-AR) activation. However, the functional significance of Nur77 in β-AR signaling in the heart remains unclear. By using Northern blot, Western blot, and immunofluorescent staining assays, we showed that Nur77 expression was markedly upregulated in cardiomyocytes in response to multiple hypertrophic stimuli, including isoproterenol (ISO), phenylephrine (PE), and endothelin-1 (ET-1). In a time- and dose-dependent manner, ISO increases Nur77 expression in the nuclei of cardiomyocytes. Overexpression of Nur77 markedly inhibited ISO-induced cardiac hypertrophy by inducing nuclear translocation of Nur77 in cardiomyocytes. Furthermore, cardiac overexpression of Nur77 by intramyocardial injection of Ad-Nur77 substantially inhibited cardiac hypertrophy and ameliorated cardiac dysfunction after chronic infusion of ISO in mice. Mechanistically, we demonstrated that Nur77 functionally interacts with NFATc3 and GATA4 and inhibits their transcriptional activities, which are critical for the development of cardiac hypertrophy. These results demonstrate for the first time that Nur77 is a novel negative regulator for the β-AR-induced cardiac hypertrophy through inhibiting the NFATc3 and GATA4 transcriptional pathways. Targeting Nur77 may represent a potentially novel therapeutic strategy for preventing cardiac hypertrophy and heart failure.
Collapse
|
35
|
de Cavanagh EMV, Inserra F, Ferder L. Angiotensin II blockade: how its molecular targets may signal to mitochondria and slow aging. Coincidences with calorie restriction and mTOR inhibition. Am J Physiol Heart Circ Physiol 2015; 309:H15-44. [PMID: 25934099 DOI: 10.1152/ajpheart.00459.2014] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 04/30/2015] [Indexed: 02/07/2023]
Abstract
Caloric restriction (CR), renin angiotensin system blockade (RAS-bl), and rapamycin-mediated mechanistic target of rapamycin (mTOR) inhibition increase survival and retard aging across species. Previously, we have summarized CR and RAS-bl's converging effects, and the mitochondrial function changes associated with their physiological benefits. mTOR inhibition and enhanced sirtuin and KLOTHO signaling contribute to the benefits of CR in aging. mTORC1/mTORC2 complexes contribute to cell growth and metabolic regulation. Prolonged mTORC1 activation may lead to age-related disease progression; thus, rapamycin-mediated mTOR inhibition and CR may extend lifespan and retard aging through mTORC1 interference. Sirtuins by deacetylating histone and transcription-related proteins modulate signaling and survival pathways and mitochondrial functioning. CR regulates several mammalian sirtuins favoring their role in aging regulation. KLOTHO/fibroblast growth factor 23 (FGF23) contribute to control Ca(2+), phosphate, and vitamin D metabolism, and their dysregulation may participate in age-related disease. Here we review how mTOR inhibition extends lifespan, how KLOTHO functions as an aging suppressor, how sirtuins mediate longevity, how vitamin D loss may contribute to age-related disease, and how they relate to mitochondrial function. Also, we discuss how RAS-bl downregulates mTOR and upregulates KLOTHO, sirtuin, and vitamin D receptor expression, suggesting that at least some of RAS-bl benefits in aging are mediated through the modulation of mTOR, KLOTHO, and sirtuin expression and vitamin D signaling, paralleling CR actions in age retardation. Concluding, the available evidence endorses the idea that RAS-bl is among the interventions that may turn out to provide relief to the spreading issue of age-associated chronic disease.
Collapse
Affiliation(s)
- Elena M V de Cavanagh
- Center of Hypertension, Cardiology Department, Austral University Hospital, Derqui, Argentina; School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and
| | - Felipe Inserra
- Center of Hypertension, Cardiology Department, Austral University Hospital, Derqui, Argentina; School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and
| | - León Ferder
- Department of Physiology and Pharmacology, Ponce School of Medicine, Ponce, Puerto Rico
| |
Collapse
|
36
|
Feng XJ, Gao H, Gao S, Li Z, Li H, Lu J, Wang JJ, Huang XY, Liu M, Zou J, Ye JT, Liu PQ. The orphan receptor NOR1 participates in isoprenaline-induced cardiac hypertrophy by regulating PARP-1. Br J Pharmacol 2015; 172:2852-63. [PMID: 25625556 DOI: 10.1111/bph.13091] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 11/29/2014] [Accepted: 01/16/2015] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND AND PURPOSE The orphan nuclear receptor NOR1 belongs to the NR4A subfamily of the nuclear hormone receptor superfamily, and is involved in glucose and fat metabolism. However, its potential contribution to cardiovascular diseases remains to be assessed. Here, the roles of NOR1 in cardiac hypertrophy induced by isoprenaline and the underlying molecular mechanisms were investigated. EXPERIMENTAL APPROACH NOR1 was expressed in cardiomyocytes treated with isoprenaline. After NOR1 overexpression or knockdown in neonatal rat cardiomyocytes, cellular hypertrophy was monitored by measuring cell surface area and the mRNA of hypertrophic biomarkers. Interactions between NOR1 and PARP-1 were investigated by co-immunoprecipitation. NOR1 expression and PARP-1 activity were measured in rats with cardiac hypertrophy induced by isoprenaline. KEY RESULTS Treatment with isoprenaline significantly up-regulated NOR1 expression and PARP-1 activity both in vivo and in vitro. Specific gene silencing of NOR1 attenuated isoprenaline-induced cardiomyocyte hypertrophy, whereas NOR1 overexpression exacerbated cardiac hypertrophy. We identified a physical interaction between NOR1 and PARP-1, which was enhanced by NOR1 transfection and thereby led to PARP-1 activation. Overexpression of NOR1, but not C293Y, a NOR1 mutant lacking the PARP-1 binding activity, increased cellular surface area and the mRNA levels of atrial natriuretic factor and brain natriuretic polypeptide, effects blocked by the PARP-1 inhibitor 3-aminobenzamide or siRNA for PARP-1. CONCLUSIONS AND IMPLICATIONS This is the first evidence that NOR1 was involved in isoprenaline-induced cardiac hypertrophy. The pro-hypertrophic effect of NOR1 can be partly attributed to its regulation of PARP-1 enzymic activity.
Collapse
Affiliation(s)
- Xiao-Jun Feng
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Hui Gao
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China.,Department of Pharmacology, School of Medicine, Jishou University, Jishou, China
| | - Si Gao
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Zhuoming Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Hong Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Jing Lu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Jiao-Jiao Wang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Yang Huang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Min Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Jian Zou
- Department of Pharmacy, Chengdu Fifth People's Hospital, Chengdu, China
| | - Jian-Tao Ye
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Pei-Qing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| |
Collapse
|
37
|
Xu X, Roe ND, Weiser-Evans MCM, Ren J. Inhibition of mammalian target of rapamycin with rapamycin reverses hypertrophic cardiomyopathy in mice with cardiomyocyte-specific knockout of PTEN. Hypertension 2014; 63:729-39. [PMID: 24446058 DOI: 10.1161/hypertensionaha.113.02526] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The role of phosphatase and tensin homolog deleted from chromosome 10 (PTEN) in the maintenance of cardiac homeostasis still remains controversial. This study was designed to evaluate the role of cardiomyocyte-specific PTEN in the maintenance of cardiac homeostasis and the underlying mechanisms involved with a focus on autophagy, an evolutionarily conserved pathway for protein degradation. Cardiomyocyte-specific PTEN((flox/flox))/α-myosin heavy chain Cre mice, henceforth referred to as CM-PTENKO, were generated by crossing the floxed PTEN mice with α-myosin heavy chain Cre mice driven by a Cre recombinase promoter. The adult PTEN(-/-) mice displayed the phenotype of established hypertrophic cardiomyopathy, including unfavorable geometric, functional, and histological changes. Furthermore, cardiomyocyte-specific PTEN knockout mice exhibited increased cardiac mammalian target of rapamycin although suppressed autophagy. Treatment with rapamycin (2 mg/kg per day, IP), an inhibitor of mammalian target of rapamycin, for 1 month effectively reversed the established hypertrophic cardiomyopathy in CM-PTENKO mice. With rapamycin treatment, autophagy activity was significantly restored in the heart of CM-PTENKO mice. Taken together, our results demonstrate an essential role for cardiomyocyte PTEN in maintaining cardiac homeostasis under physiological condition. Cardiomyocyte-specific deletion of PTEN results in the development of hypertrophic cardiomyopathy possibly through a mechanism associated with mammalian target of rapamycin hyperactivation and autophagy suppression.
Collapse
Affiliation(s)
- Xihui Xu
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071.
| | | | | | | |
Collapse
|
38
|
Niu G, Lu L, Gan J, Zhang D, Liu J, Huang G. Dual roles of orphan nuclear receptor TR3/Nur77/NGFI-B in mediating cell survival and apoptosis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2014; 313:219-58. [PMID: 25376494 DOI: 10.1016/b978-0-12-800177-6.00007-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
As a transcriptional factor, Nur77 has sparked interests across different research fields in recent years. A number of studies have demonstrated the functional complexity of Nur77 in mediating survival/apoptosis in a variety of cells, including tumor cells. Conflicting observations also exist in clinical reports, in that TR3 behaves like an oncogene in tumors of the GI tract, lung, and breast, that is negatively associated with tumor stage and patient prognosis; while functions as a tumor suppressor gene in malignancies of the hematological and lymphatic system, skin, and ovary whose malfunction results in carcinogenesis. This chapter summarizes the apparent opposing effects of Nur77 on cells and explicates the mechanisms that determine the functional preference of Nur77. We conclude that in addition to cell type and agent context, other factors such as cellular localization, signaling pathway, and posttranslational modification also determine the final effects of Nur77 on cells.
Collapse
Affiliation(s)
- Gengming Niu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Lei Lu
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Jun Gan
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Di Zhang
- Main Library, Shanghai Jiao Tong University, Shanghai, China
| | - Jingzheng Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guangjian Huang
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
39
|
Orphan nuclear receptor TR3 acts in autophagic cell death via mitochondrial signaling pathway. Nat Chem Biol 2013; 10:133-40. [PMID: 24316735 DOI: 10.1038/nchembio.1406] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 10/15/2013] [Indexed: 01/20/2023]
Abstract
Autophagy is linked to cell death, yet the associated mechanisms are largely undercharacterized. We discovered that melanoma, which is generally resistant to drug-induced apoptosis, can undergo autophagic cell death with the participation of orphan nuclear receptor TR3. A sequence of molecular events leading to cellular demise is launched by a specific chemical compound, 1-(3,4,5-trihydroxyphenyl)nonan-1-one, newly acquired from screening a library of TR3-targeting compounds. The autophagic cascade comprises TR3 translocation to mitochondria through interaction with the mitochondrial outer membrane protein Nix, crossing into the mitochondrial inner membrane through Tom40 and Tom70 channel proteins, dissipation of mitochondrial membrane potential by the permeability transition pore complex ANT1-VDAC1 and induction of autophagy. This process leads to excessive mitochondria clearance and irreversible cell death. It implicates a new approach to melanoma therapy through activation of a mitochondrial signaling pathway that integrates a nuclear receptor with autophagy for cell death.
Collapse
|
40
|
Swimming exercise training-induced left ventricular hypertrophy involves microRNAs and synergistic regulation of the PI3K/AKT/mTOR signaling pathway. Eur J Appl Physiol 2013; 113:2473-86. [DOI: 10.1007/s00421-013-2685-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 06/18/2013] [Indexed: 01/16/2023]
|