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Daneshgar N, Lan R, Regnier M, Mackintosh SG, Venkatasubramanian R, Dai DF. Klotho enhances diastolic function in aged hearts through Sirt1-mediated pathways. GeroScience 2024:10.1007/s11357-024-01209-w. [PMID: 38976132 DOI: 10.1007/s11357-024-01209-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 05/16/2024] [Indexed: 07/09/2024] Open
Abstract
Aging leads to a progressive decline in cardiac function, increasing the risk of heart failure with preserved ejection fraction (HFpEF). This study elucidates the impact of α-Klotho, an anti-aging hormone, on cardiac diastolic dysfunction and explore its downstream mechanisms. Aged wild-type and heterozygous Klotho-deficient mice received daily injection of soluble α-Klotho (sKL) for 10 weeks, followed by a comprehensive assessment of heart function by echocardiography, intracardiac pressure catheter, exercise tolerance, and cardiac pathology. Our findings show that klotho deficiency accentuated cardiac hypertrophy, diastolic dysfunction, and exercise intolerance, while sKL treatment ameliorates these abnormalities and improves cardiac capillary densities. Downstream of klotho, we focused on the Sirtuin1 (Sirt1) signaling pathway to elucidate the potential underlying mechanism by which Klotho improves diastolic function. We found that decreased Klotho levels were linked with Sirt1 deficiency, whereas sKL treatment restored Sirt1 expression in aged hearts and mitigated the DNA damage response pathway activation. Through tandem mass tag proteomics and unbiased acetylomics analysis, we identified 220 significantly hyperacetylated lysine sites in critical cardiac proteins of aged hearts. We found that sKL supplementation attenuated age-dependent DNA damage and cardiac diastolic dysfunction. In contrast, Klotho deficiency significantly increased hyperacetylation of several crucial cardiac contractile proteins, potentially impairing ventricular relaxation and diastolic function, thus predisposing to HFpEF. These results suggest the potential benefit of sKL supplementation as a promising therapeutic strategy for combating HFpEF in aging.
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Affiliation(s)
- Nastaran Daneshgar
- Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Renny Lan
- UAMS, Arkansas Children's Nutrition Center, Little Rock, AR, USA
| | - Michael Regnier
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Samuel G Mackintosh
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | | | - Dao-Fu Dai
- Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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2
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Li Y, Huang M, Wang M, Wang Y, Deng P, Li C, Huang J, Chen H, Wei Z, Ouyang Q, Zhao J, Lu Y, Su S. Tumor cells impair immunological synapse formation via central nervous system-enriched metabolite. Cancer Cell 2024; 42:985-1002.e18. [PMID: 38821061 DOI: 10.1016/j.ccell.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 02/22/2024] [Accepted: 05/06/2024] [Indexed: 06/02/2024]
Abstract
Tumors employ various strategies to evade immune surveillance. Central nervous system (CNS) has multiple features to restrain immune response. Whether tumors and CNS share similar programs of immunosuppression is elusive. Here, we analyze multi-omics data of tumors from HER2+ breast cancer patients receiving trastuzumab and anti-PD-L1 antibody and find that CNS-enriched N-acetyltransferase 8-like (NAT8L) and its metabolite N-acetylaspartate (NAA) are overexpressed in resistant tumors. In CNS, NAA is released during brain inflammation. NAT8L attenuates brain inflammation and impairs anti-tumor immunity by inhibiting cytotoxicity of natural killer (NK) cells and CD8+ T cells via NAA. NAA disrupts the formation of immunological synapse by promoting PCAF-induced acetylation of lamin A-K542, which inhibits the integration between lamin A and SUN2 and impairs polarization of lytic granules. We uncover that tumor cells mimic the anti-inflammatory mechanism of CNS to evade anti-tumor immunity and NAT8L is a potential target to enhance efficacy of anti-cancer agents.
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Affiliation(s)
- Yihong Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Min Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Minger Wang
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yi Wang
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Peng Deng
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Chunni Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Jingying Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Hui Chen
- Guangdong Provincial Key Laboratory of Liver Disease Research the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China
| | - Zhihao Wei
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Qian Ouyang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Jinghua Zhao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Yiwen Lu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
| | - Shicheng Su
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Immunology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China; Biotherapy Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
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3
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Pan-Lizcano R, Núñez L, Piñón P, Aldama G, Flores X, Calviño-Santos R, Vázquez-Rodríguez JM, Hermida-Prieto M. lncRNA CDKN2B-AS1 is downregulated in patients with ventricular fibrillation in acute myocardial infarction. PLoS One 2024; 19:e0304041. [PMID: 38771854 PMCID: PMC11108170 DOI: 10.1371/journal.pone.0304041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/04/2024] [Indexed: 05/23/2024] Open
Abstract
Ventricular fibrillation (VF) in acute myocardial infarction (AMI) is the main cause of deaths occurring in the acute phase of an ischemic event. Although it is known that genetics may play an important role in this pathology, the possible role of long non-coding RNAs (lncRNA) has never been studied. Therefore, the aim of this work is to study the expression of 10 lncRNAs in patients with and without VF in AMI. For this purpose, the expression of CDKN2B-AS1, KCNQ1OT1, LIPCAR, MALAT1, MIAT, NEAT1, SLC16A1-AS1, lnc-TK2-4:2, TNFRSF14-AS1, and UCA1 were analyzed. After the analysis and Bonferroni correction, the lncRNA CDKN2B-AS showed a statistical significance lower expression (P values of 2.514 x 10-5). In silico analysis revealed that six proteins could be related to the possible effect of lncRNA CDKN2B-AS1: AGO3, PLD4, POU4F1, ZNF26, ZNF326 and ZNF431. These in silico proteins predicted to have a low cardiac expression, although there is no literature indicating a potential relationship with VF in AMI. Thus, the lncRNA CDKN2B-AS1 shows a significant lower expression in patients with VF in AMI vs patients without VF in AMI. Literature data suggest that the role of CDKN2B1-AS is related to the miR-181a/SIRT1 pathway.
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Affiliation(s)
- Ricardo Pan-Lizcano
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Grupo de Investigación en Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), GRINCAR-Universidade da Coruña (UDC), A Coruña, Spain
| | - Lucía Núñez
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Grupo de Investigación en Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), GRINCAR-Universidade da Coruña (UDC), A Coruña, Spain
- Departamento de Ciencias de la Salud, GRINCAR Research Group, Universidade da Coruña, A Coruña, Spain
| | - Pablo Piñón
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Servicio de Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), Universidade da Coruña (UDC), A Coruña, Spain
| | - Guillermo Aldama
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Servicio de Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), Universidade da Coruña (UDC), A Coruña, Spain
| | - Xacobe Flores
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Servicio de Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), Universidade da Coruña (UDC), A Coruña, Spain
| | - Ramón Calviño-Santos
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Servicio de Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), Universidade da Coruña (UDC), A Coruña, Spain
- CIBERCV (Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares), Instituto de Salud Carlos III, Madrid, Spain
| | - José Manuel Vázquez-Rodríguez
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Servicio de Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), Universidade da Coruña (UDC), A Coruña, Spain
- CIBERCV (Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares), Instituto de Salud Carlos III, Madrid, Spain
| | - Manuel Hermida-Prieto
- Instituto de Investigación Biomédica de A Coruña (INIBIC), Grupo de Investigación en Cardiología, Complexo Hospitalario Universitario de A Coruña (CHUAC-SERGAS), GRINCAR-Universidade da Coruña (UDC), A Coruña, Spain
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Yoon JY, Greiner AM, Jacobs JS, Kim YR, Rasmussen TP, Kutschke WJ, Matasic DS, Vikram A, Gaddam RR, Mehdi H, Irani K, London B. SUMOylation of the cardiac sodium channel Na V1.5 modifies inward current and cardiac excitability. Heart Rhythm 2023; 20:1548-1557. [PMID: 37543305 DOI: 10.1016/j.hrthm.2023.07.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 07/07/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND Decreased peak sodium current (INa) and increased late sodium current (INa,L), through the cardiac sodium channel NaV1.5 encoded by SCN5A, cause arrhythmias. Many NaV1.5 posttranslational modifications have been reported. A recent report concluded that acute hypoxia increases INa,L by increasing a small ubiquitin-like modifier (SUMOylation) at K442-NaV1.5. OBJECTIVE The purpose of this study was to determine whether and by what mechanisms SUMOylation alters INa, INa,L, and cardiac electrophysiology. METHODS SUMOylation of NaV1.5 was detected by immunoprecipitation and immunoblotting. INa was measured by patch clamp with/without SUMO1 overexpression in HEK293 cells expressing wild-type (WT) or K442R-NaV1.5 and in neonatal rat cardiac myocytes (NRCMs). SUMOylation effects were studied in vivo by electrocardiograms and ambulatory telemetry using Scn5a heterozygous knockout (SCN5A+/-) mice and the de-SUMOylating protein SENP2 (AAV9-SENP2), AAV9-SUMO1, or the SUMOylation inhibitor anacardic acid. NaV1.5 trafficking was detected by immunofluorescence. RESULTS NaV1.5 was SUMOylated in HEK293 cells, NRCMs, and human heart tissue. HyperSUMOylation at NaV1.5-K442 increased INa in NRCMs and in HEK cells overexpressing WT but not K442R-Nav1.5. SUMOylation did not alter other channel properties including INa,L. AAV9-SENP2 or anacardic acid decreased INa, prolonged QRS duration, and produced heart block and arrhythmias in SCN5A+/- mice, whereas AAV9-SUMO1 increased INa and shortened QRS duration. SUMO1 overexpression enhanced membrane localization of NaV1.5. CONCLUSION SUMOylation of K442-Nav1.5 increases peak INa without changing INa,L, at least in part by altering membrane abundance. Our findings do not support SUMOylation as a mechanism for changes in INa,L. Nav1.5 SUMOylation may modify arrhythmic risk in disease states and represents a potential target for pharmacologic manipulation.
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Affiliation(s)
- Jin-Young Yoon
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Alexander M Greiner
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Julia S Jacobs
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Young-Rae Kim
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Tyler P Rasmussen
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - William J Kutschke
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Daniel S Matasic
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Ajit Vikram
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Ravinder R Gaddam
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Haider Mehdi
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Kaikobad Irani
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa; Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, and Heart and Vascular Center, University of Iowa, Iowa City, Iowa.
| | - Barry London
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa.
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Tuncay E, Gando I, Huo JY, Yepuri G, Samper N, Turan B, Yang HQ, Ramasamy R, Coetzee WA. The cardioprotective role of sirtuins is mediated in part by regulating K ATP channel surface expression. Am J Physiol Cell Physiol 2023; 324:C1017-C1027. [PMID: 36878847 PMCID: PMC10110703 DOI: 10.1152/ajpcell.00459.2022] [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: 10/12/2022] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/08/2023]
Abstract
Sirtuins are NAD+-dependent deacetylases with beneficial roles in conditions relevant to human health, including metabolic disease, type II diabetes, obesity, cancer, aging, neurodegenerative diseases, and cardiac ischemia. Since ATP-sensitive K+ (KATP) channels have cardioprotective roles, we investigated whether they are regulated by sirtuins. Nicotinamide mononucleotide (NMN) was used to increase cytosolic NAD+ levels and to activate sirtuins in cell lines, isolated rat and mouse cardiomyocytes or insulin-secreting INS-1 cells. KATP channels were studied with patch clamping, biochemistry techniques, and antibody uptake experiments. NMN led to an increase in intracellular NAD+ levels and an increase in the KATP channel current, without significant changes in the unitary current amplitude or open probability. An increased surface expression was confirmed using surface biotinylation approaches. The rate of KATP channel internalization was diminished by NMN, which may be a partial explanation for the increased surface expression. We show that NMN acts via sirtuins since the increased KATP channel surface expression was prevented by blockers of SIRT1 and SIRT2 (Ex527 and AGK2) and mimicked by SIRT1 activation (SRT1720). The pathophysiological relevance of this finding was studied using a cardioprotection assay with isolated ventricular myocytes, in which NMN protected against simulated ischemia or hypoxia in a KATP channel-dependent manner. Overall, our data draw a link between intracellular NAD+, sirtuin activation, KATP channel surface expression, and cardiac protection against ischemic damage.
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Affiliation(s)
- Erkan Tuncay
- Department of Biophysics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Ivan Gando
- Department of Pathology, New York University Grossman Medical Center, New York, New York, United States
| | - Jian-Yi Huo
- Cyrus Tang Hematology Center, Soochow University, Suzhou, People's Republic of China
| | - Gautham Yepuri
- Department of Medicine, New York University Grossman Medical Center, New York, New York, United States
| | - Natalie Samper
- Department of Pathology, New York University Grossman Medical Center, New York, New York, United States
| | - Belma Turan
- Department of Biophysics, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
| | - Hua-Qian Yang
- Cyrus Tang Hematology Center, Soochow University, Suzhou, People's Republic of China
| | - Ravichandran Ramasamy
- Department of Medicine, New York University Grossman Medical Center, New York, New York, United States
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman Medical Center, New York, New York, United States
| | - William A Coetzee
- Department of Pathology, New York University Grossman Medical Center, New York, New York, United States
- Department of Physiology & Neuroscience, New York University Grossman Medical Center, New York, New York, United States
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman Medical Center, New York, New York, United States
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Pellegrino M, Ricci E, Ceraldi R, Nigro A, Bonofiglio D, Lanzino M, Morelli C. From HDAC to Voltage-Gated Ion Channels: What's Next? The Long Road of Antiepileptic Drugs Repositioning in Cancer. Cancers (Basel) 2022; 14:cancers14184401. [PMID: 36139561 PMCID: PMC9497059 DOI: 10.3390/cancers14184401] [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: 08/04/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Although in the last decades the clinical outcome of cancer patients considerably improved, the major drawbacks still associated with chemotherapy are the unwanted side effects and the development of drug resistance. Therefore, a continuous effort in trying to discover new tumor markers, possibly of diagnostic, prognostic and therapeutic value, is being made. This review is aimed at highlighting the anti-tumor activity that several antiepileptic drugs (AEDs) exert in breast, prostate and other types of cancers, mainly focusing on their ability to block the voltage-gated Na+ and Ca++ channels, as well as to inhibit the activity of histone deacetylases (HDACs), all well-documented tumor markers and/or molecular targets. The existence of additional AEDs molecular targets is highly suspected. Therefore, the repurposing of already available drugs as adjuvants in cancer treatment would have several advantages, such as reductions in dose-related toxicity CVs will be sent in a separate mail to the indicated address of combined treatments, lower production costs, and faster approval for clinical use. Abstract Cancer is a major health burden worldwide. Although the plethora of molecular targets identified in the last decades and the deriving developed treatments, which significantly improved patients’ outcome, the occurrence of resistance to therapies remains the major cause of relapse and mortality. Thus, efforts in identifying new markers to be exploited as molecular targets in cancer therapy are needed. This review will first give a glance on the diagnostic and therapeutic significance of histone deacetylase (HDAC) and voltage gated ion channels (VGICs) in cancer. Nevertheless, HDAC and VGICs have also been reported as molecular targets through which antiepileptic drugs (AEDs) seem to exert their anticancer activity. This should be claimed as a great advantage. Indeed, due to the slowness of drug approval procedures, the attempt to turn to off-label use of already approved medicines would be highly preferable. Therefore, an updated and accurate overview of both preclinical and clinical data of commonly prescribed AEDs (mainly valproic acid, lamotrigine, carbamazepine, phenytoin and gabapentin) in breast, prostate, brain and other cancers will follow. Finally, a glance at the emerging attempt to administer AEDs by means of opportunely designed drug delivery systems (DDSs), so to limit toxicity and improve bioavailability, is also given.
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Affiliation(s)
| | | | | | | | | | - Marilena Lanzino
- Correspondence: (M.L.); (C.M.); Tel.: +39-0984-496206 (M.L.); +39-0984-496211 (C.M.)
| | - Catia Morelli
- Correspondence: (M.L.); (C.M.); Tel.: +39-0984-496206 (M.L.); +39-0984-496211 (C.M.)
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7
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Li L, Guo H, Lai B, Liang C, Chen H, Chen Y, Guo W, Yuan Z, Huang R, Zeng Z, Liang L, Zhao H, Zheng X, Li Y, Pu Q, Qi X, Cai D. Ablation of cardiomyocyte-derived BDNF during development causes myocardial degeneration and heart failure in the adult mouse heart. Front Cardiovasc Med 2022; 9:967463. [PMID: 36061561 PMCID: PMC9433718 DOI: 10.3389/fcvm.2022.967463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Brain-derived neurotrophic factor (BDNF) and its receptor TrkB-T1 were recently found to be expressed in cardiomyocytes. However, the functional role of cardiomyocyte-derived BDNF in heart pathophysiology is not yet fully known. Recent studies revealed that BDNF-TrkB pathway plays a critical role to maintain integrity of cardiac structure and function, cardiac pathology and regeneration of myocardial infarction (MI). Therefore, the BDNF-TrkB pathway may be a novel target for myocardial pathophysiology in the adult heart. Approach and results In the present study, we established a cardiomyocyte-derived BDNF conditional knockout mouse in which BDNF expression in developing cardiomyocytes is ablated under the control of the Myosin heavy chain 6 (MYH6) promoter. The results of the present study show that ablation of cardiomyocyte-derived BDNF during development does not impair survival, growth or reproduction; however, in the young adult heart, it causes cardiomyocyte death, degeneration of the myocardium, cardiomyocyte hypertrophy, left atrial appendage thrombosis, decreased cardiac function, increased cardiac inflammation and ROS activity, and metabolic disorders, leading to heart failure (HF) in the adult heart and eventually resulting in a decrease in the one-year survival rate. In addition, ablation of cardiomyocyte-derived BDNF during the developmental stage leads to exacerbation of cardiac dysfunction and poor regeneration after MI in adult hearts. Conclusion Cardiomyocyte-derived BDNF is irreplaceable for maintaining the integrity of cardiac structure and function in the adult heart and regeneration after MI. Therefore, the BDNF-TrkB pathway will be a novel target for myocardial pathophysiology in the adult heart.
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Affiliation(s)
- Lilin Li
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Hongyan Guo
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
- Jiangxi Provincial Key Laboratory of Medical Immunology and Immunotherapy, Jiangxi Academy of Medical Sciences, Nanchang, China
| | - Binglin Lai
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Chunbao Liang
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Hongyi Chen
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Yilin Chen
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Weimin Guo
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Ziqiang Yuan
- Department of Medical Oncology, Robert Wood Johnson of Medical School, Cancer Institute of New Jersey, New Brunswick, NJ, United States
| | - Ruijin Huang
- Department of Neuroanatomy, Institute of Anatomy, University of Bonn, Bonn, Germany
- Department of Anatomy and Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
| | - Zhaohua Zeng
- Division of Cardiology, Department of Internal Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Liying Liang
- Division of Cardiology, Department of Internal Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hui Zhao
- Stem Cell and Regeneration TRP, School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Xin Zheng
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Yanmei Li
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Qin Pu
- Department of Neuroanatomy, Institute of Anatomy, University of Bonn, Bonn, Germany
| | - Xufeng Qi
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
- *Correspondence: Xufeng Qi,
| | - Dongqing Cai
- Key Laboratory of Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China
- Joint Laboratory for Regenerative Medicine, Chinese University of Hong Kong-Jinan University, Guangzhou, China
- International Base of Collaboration for Science and Technology (JNU), The Ministry of Science and Technology and Guangdong Province, Guangzhou, China
- Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
- Dongqing Cai,
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8
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Yoon J, Daneshgar N, Chu Y, Chen B, Hefti M, Vikram A, Irani K, Song L, Brenner C, Abel ED, London B, Dai D. Metabolic rescue ameliorates mitochondrial encephalo-cardiomyopathy in murine and human iPSC models of Leigh syndrome. Clin Transl Med 2022; 12:e954. [PMID: 35872650 PMCID: PMC9309541 DOI: 10.1002/ctm2.954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/09/2022] [Accepted: 06/15/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Mice with deletion of complex I subunit Ndufs4 develop mitochondrial encephalomyopathy resembling Leigh syndrome (LS). The metabolic derangement and underlying mechanisms of cardio-encephalomyopathy in LS remains incompletely understood. METHODS We performed echocardiography, electrophysiology, confocal microscopy, metabolic and molecular/morphometric analysis of the mice lacking Ndufs4. HEK293 cells, human iPS cells-derived cardiomyocytes and neurons were used to determine the mechanistic role of mitochondrial complex I deficiency. RESULTS LS mice develop severe cardiac bradyarrhythmia and diastolic dysfunction. Human-induced pluripotent stem cell-derived cardiomyocytes (iPS-CMs) with Ndufs4 deletion recapitulate LS cardiomyopathy. Mechanistically, we demonstrate a direct link between complex I deficiency, decreased intracellular (nicotinamide adenine dinucleotide) NAD+ /NADH and bradyarrhythmia, mediated by hyperacetylation of the cardiac sodium channel NaV 1.5, particularly at K1479 site. Neuronal apoptosis in the cerebellar and midbrain regions in LS mice was associated with hyperacetylation of p53 and activation of microglia. Targeted metabolomics revealed increases in several amino acids and citric acid cycle intermediates, likely due to impairment of NAD+ -dependent dehydrogenases, and a substantial decrease in reduced Glutathione (GSH). Metabolic rescue by nicotinamide riboside (NR) supplementation increased intracellular NAD+ / NADH, restored metabolic derangement, reversed protein hyperacetylation through NAD+ -dependent Sirtuin deacetylase, and ameliorated cardiomyopathic phenotypes, concomitant with improvement of NaV 1.5 current and SERCA2a function measured by Ca2+ -transients. NR also attenuated neuronal apoptosis and microglial activation in the LS brain and human iPS-derived neurons with Ndufs4 deletion. CONCLUSIONS Our study reveals direct mechanistic explanations of the observed cardiac bradyarrhythmia, diastolic dysfunction and neuronal apoptosis in mouse and human induced pluripotent stem cells (iPSC) models of LS.
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Affiliation(s)
- Jin‐Young Yoon
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
- Abboud Cardiovascular Research Center, University of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Nastaran Daneshgar
- Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityIowaUSA
| | - Yi Chu
- Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityIowaUSA
| | - Biyi Chen
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
- Abboud Cardiovascular Research Center, University of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Marco Hefti
- Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityIowaUSA
| | - Ajit Vikram
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Kaikobad Irani
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
- Abboud Cardiovascular Research Center, University of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Long‐Sheng Song
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
- Abboud Cardiovascular Research Center, University of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Charles Brenner
- Department of Diabetes & Cancer MetabolismCity of Hope National Medical CenterDuarteCaliforniaUSA
| | - E. Dale Abel
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Department of Internal MedicineUniversity of Iowa Carver College of Medicine, University of IowaIowa CityIowaUSA
| | - Barry London
- Division of Cardiovascular Medicine, Department of Internal MedicineUniversity of Iowa Carver College of MedicineIowa CityIowaUSA
- Abboud Cardiovascular Research Center, University of Iowa Carver College of MedicineIowa CityIowaUSA
| | - Dao‐Fu Dai
- Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityIowaUSA
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9
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Ren FF, Xie ZY, Jiang YN, Guan X, Chen QY, Lai TF, Li L. Dapagliflozin attenuates pressure overload-induced myocardial remodeling in mice via activating SIRT1 and inhibiting endoplasmic reticulum stress. Acta Pharmacol Sin 2022; 43:1721-1732. [PMID: 34853445 PMCID: PMC9253115 DOI: 10.1038/s41401-021-00805-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/26/2021] [Indexed: 12/30/2022] Open
Abstract
Endoplasmic reticulum stress-mediated apoptosis plays a vital role in the occurrence and development of heart failure. Dapagliflozin (DAPA), a new type of sodium-glucose cotransporter 2 (SGLT2) inhibitor, is an oral hypoglycemic drug that reduces glucose reabsorption by the kidneys and increases glucose excretion in the urine. Studies have shown that DAPA may have the potential to treat heart failure in addition to controlling blood sugar. This study explored the effect of DAPA on endoplasmic reticulum stress-related apoptosis caused by heart failure. In vitro, we found that DAPA inhibited the expression of cleaved caspase 3, Bax, C/EBP homologous protein (CHOP), and glucose-regulated protein78 (GRP78) and upregulated the cardiomyoprotective protein Bcl-2 in angiotensin II (Ang II)-treated cardiomyocytes. In addition, DAPA promoted the expression of silent information regulator factor 2-related enzyme 1 (SIRT1) and suppressed the expression of activating transcription factor 4 (ATF4) and the ratios p-PERK/PERK and p-eIF2α/eIF2α. Notably, the therapeutic effect of DAPA was weakened by pretreatment with the SIRT1 inhibitor EX527 (10 μM). Simultaneous administration of DAPA inhibited the Ang II-induced transformation of fibroblasts into myofibroblasts and inhibited fibroblast migration. In summary, our present findings first indicate that DAPA could inhibit the PERK-eIF2α-CHOP axis of the ER stress response through the activation of SIRT1 in Ang II-treated cardiomyocytes and ameliorate heart failure development in vivo.
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Affiliation(s)
- Fang-fang Ren
- grid.417384.d0000 0004 1764 2632Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027 China
| | - Zuo-yi Xie
- grid.417384.d0000 0004 1764 2632Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027 China
| | - Yi-na Jiang
- grid.417384.d0000 0004 1764 2632Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027 China
| | - Xuan Guan
- grid.417384.d0000 0004 1764 2632Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027 China
| | - Qiao-ying Chen
- grid.417384.d0000 0004 1764 2632Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027 China
| | - Teng-fang Lai
- grid.460081.bDepartment of Cardiology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000 China
| | - Lei Li
- Department of Cardiology, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
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10
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Chakraborty A, Minor KE, Nizami HL, Chiao YA, Lee CF. Harnessing NAD + Metabolism as Therapy for Cardiometabolic Diseases. Curr Heart Fail Rep 2022; 19:157-169. [PMID: 35556214 PMCID: PMC9339518 DOI: 10.1007/s11897-022-00550-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/15/2022] [Indexed: 01/10/2023]
Abstract
PURPOSE OF THE REVIEW This review summarizes current understanding on the roles of nicotinamide adenine dinucleotide (NAD+) metabolism in the pathogeneses and treatment development of metabolic and cardiac diseases. RECENT FINDINGS NAD+ was identified as a redox cofactor in metabolism and a co-substrate for a wide range of NAD+-dependent enzymes. NAD+ redox imbalance and depletion are associated with many pathologies where metabolism plays a key role, for example cardiometabolic diseases. This review is to delineate the current knowledge about harnessing NAD+ metabolism as potential therapy for cardiometabolic diseases. The review has summarized how NAD+ redox imbalance and depletion contribute to the pathogeneses of cardiometabolic diseases. Therapeutic evidence involving activation of NAD+ synthesis in pre-clinical and clinical studies was discussed. While activation of NAD+ synthesis shows great promise for therapy, the field of NAD+ metabolism is rapidly evolving. Therefore, it is expected that new mechanisms will be discovered as therapeutic targets for cardiometabolic diseases.
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Affiliation(s)
- Akash Chakraborty
- Cardiovascular Biology Research Program, MS 45, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Keaton E Minor
- Cardiovascular Biology Research Program, MS 45, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Hina Lateef Nizami
- Cardiovascular Biology Research Program, MS 45, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Ying Ann Chiao
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Chi Fung Lee
- Cardiovascular Biology Research Program, MS 45, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA.
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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11
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Pei Z, Wang F, Wang K, Wang L. Nicotinamide Adenine Dinucleotide in the Development and Treatment of Cardiac Remodeling and Aging. Mini Rev Med Chem 2022; 22:2310-2317. [DOI: 10.2174/1389557522666220304121917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/25/2021] [Accepted: 01/14/2022] [Indexed: 11/22/2022]
Abstract
Background:
Recently, the beneficial effects of nicotinamide adenine dinucleotide (NAD+) as an antiaging and antioxidant molecule have become a focus of research. However, the mechanisms by which NAD+ supplementation affects the associated metabolites under physiological conditions remain unclear. Specifically, although NAD+ is involved in several processes that are dysregulated in cardiovascular diseases, some effects of NAD+ precursors and NAD+ on cardiac diseases have started to gain recognition only recently.
Objective:
To discuss the influence of NAD+ supplementation on adverse cardiac remodeling and aging.
Results:
Supplementation with NAD+ precursors or nicotinamide riboside, which enhances or supplements the NAD+ metabolome, might have a protective effect on the heart. NAD+ can alleviate chronic heart failure via a mitochondrial oxidation–reduction (redox) state mechanism. Furthermore, NAD+ replenishment can improve the life span of mice.
Conclusion:
NAD+ exerts considerable antiaging and antioxidant effects with promising therapeutic effects. However, its effect in humans and use as a dietary supplement need to be studied further.
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Affiliation(s)
- Zuowei Pei
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, No. 1 Dahua Road, Dong Dan, Beijing 100730, P. R. China
| | - Fang Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, No. 1 Dahua Road, Dong Dan, Beijing 100730, P. R. China
| | - Kanglin Wang
- Hefei Knature Bio-pharm Co., Ltd., No. 32 Meichong Lake Road, Hefei, P. R. China
| | - Lei Wang
- Hefei Knature Bio-pharm Co., Ltd., No. 32 Meichong Lake Road, Hefei, P. R. China
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12
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Mitochondrial-Targeted Therapy for Doxorubicin-Induced Cardiotoxicity. Int J Mol Sci 2022; 23:ijms23031912. [PMID: 35163838 PMCID: PMC8837080 DOI: 10.3390/ijms23031912] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/27/2022] [Accepted: 02/01/2022] [Indexed: 01/27/2023] Open
Abstract
Anthracyclines, such as doxorubicin, are effective chemotherapeutic agents for the treatment of cancer, but their clinical use is associated with severe and potentially life-threatening cardiotoxicity. Despite decades of research, treatment options remain limited. The mitochondria is commonly considered to be the main target of doxorubicin and mitochondrial dysfunction is the hallmark of doxorubicin-induced cardiotoxicity. Here, we review the pathogenic mechanisms of doxorubicin-induced cardiotoxicity and present an update on cardioprotective strategies for this disorder. Specifically, we focus on strategies that can protect the mitochondria and cover different therapeutic modalities encompassing small molecules, post-transcriptional regulators, and mitochondrial transfer. We also discuss the shortcomings of existing models of doxorubicin-induced cardiotoxicity and explore advances in the use of human pluripotent stem cell derived cardiomyocytes as a platform to facilitate the identification of novel treatments against this disorder.
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13
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Daimi H, Lozano-Velasco E, Aranega A, Franco D. Genomic and Non-Genomic Regulatory Mechanisms of the Cardiac Sodium Channel in Cardiac Arrhythmias. Int J Mol Sci 2022; 23:1381. [PMID: 35163304 PMCID: PMC8835759 DOI: 10.3390/ijms23031381] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/30/2021] [Accepted: 01/06/2022] [Indexed: 12/19/2022] Open
Abstract
Nav1.5 is the predominant cardiac sodium channel subtype, encoded by the SCN5A gene, which is involved in the initiation and conduction of action potentials throughout the heart. Along its biosynthesis process, Nav1.5 undergoes strict genomic and non-genomic regulatory and quality control steps that allow only newly synthesized channels to reach their final membrane destination and carry out their electrophysiological role. These regulatory pathways are ensured by distinct interacting proteins that accompany the nascent Nav1.5 protein along with different subcellular organelles. Defects on a large number of these pathways have a tremendous impact on Nav1.5 functionality and are thus intimately linked to cardiac arrhythmias. In the present review, we provide current state-of-the-art information on the molecular events that regulate SCN5A/Nav1.5 and the cardiac channelopathies associated with defects in these pathways.
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Affiliation(s)
- Houria Daimi
- Biochemistry and Molecular Biology Laboratory, Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Estefanía Lozano-Velasco
- Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (A.A.); (D.F.)
- Medina Foundation, Technology Park of Health Sciences, Av. del Conocimiento, 34, 18016 Granada, Spain
| | - Amelia Aranega
- Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (A.A.); (D.F.)
- Medina Foundation, Technology Park of Health Sciences, Av. del Conocimiento, 34, 18016 Granada, Spain
| | - Diego Franco
- Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (A.A.); (D.F.)
- Medina Foundation, Technology Park of Health Sciences, Av. del Conocimiento, 34, 18016 Granada, Spain
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14
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Gaddam RR, Kim Y, Jacobs JS, Yoon J, Li Q, Cai A, Shankaiahgari H, London B, Irani K, Vikram A. The microRNA-204-5p inhibits APJ signalling and confers resistance to cardiac hypertrophy and dysfunction. Clin Transl Med 2022; 12:e693. [PMID: 35060347 PMCID: PMC8777385 DOI: 10.1002/ctm2.693] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/29/2021] [Accepted: 12/16/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND MicroRNAs regulate cardiac hypertrophy development, which precedes and predicts the risk of heart failure. microRNA-204-5p (miR-204) is well expressed in cardiomyocytes, but its role in developing cardiac hypertrophy and cardiac dysfunction (CH/CD) remains poorly understood. METHODS We performed RNA-sequencing, echocardiographic, and molecular/morphometric analysis of the heart of mice lacking or overexpressing miR-204 five weeks after trans-aortic constriction (TAC). The neonatal rat cardiomyocytes, H9C2, and HEK293 cells were used to determine the mechanistic role of miR-204. RESULTS The stretch induces miR-204 expression, and miR-204 inhibits the stretch-induced hypertrophic response of H9C2 cells. The mice lacking miR-204 displayed a higher susceptibility to CH/CD during pressure overload, which was reversed by the adeno-associated virus serotype-9-mediated cardioselective miR-204 overexpression. Bioinformatic analysis of the cardiac transcriptomics of miR-204 knockout mice following pressure overload suggested deregulation of apelin-receptor (APJ) signalling. We found that the stretch-induced extracellular signal-regulated kinase 1/2 (ERK1/2) activation and hypertrophy-related genes expression depend on the APJ, and both of these effects are subject to miR-204 levels. The dynamin inhibitor dynasore inhibited both stretch-induced APJ endocytosis and ERK1/2 activation. In contrast, the miR-204-induced APJ endocytosis was neither inhibited by dynamin inhibitors (dynasore and dyngo) nor associated with ERK1/2 activation. We find that the miR-204 increases the expression of ras-associated binding proteins (e.g., Rab5a, Rab7) that regulate cellular endocytosis. CONCLUSIONS Our results show that miR-204 regulates trafficking of APJ and confers resistance to pressure overload-induced CH/CD, and boosting miR-204 can inhibit the development of CH/CD.
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Affiliation(s)
- Ravinder Reddy Gaddam
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Young‐Rae Kim
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Julia S. Jacobs
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Jin‐Young Yoon
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Qiuxia Li
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Angela Cai
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Hamsitha Shankaiahgari
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Barry London
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Kaikobad Irani
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
| | - Ajit Vikram
- Department of Internal MedicineCarver College of Medicine University of IowaIowa CityIowaUSA
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15
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Ren SC, Chen X, Gong H, Wang H, Wu C, Li PH, Chen XF, Qu JH, Tang X. SIRT6 in Vascular Diseases, from Bench to Bedside. Aging Dis 2022; 13:1015-1029. [PMID: 35855341 PMCID: PMC9286919 DOI: 10.14336/ad.2021.1204] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/04/2021] [Indexed: 11/12/2022] Open
Abstract
Aging is a key risk factor for angiogenic dysfunction and cardiovascular diseases, including heart failure, hypertension, atherosclerosis, diabetes, and stroke. Members of the NAD+-dependent class III histone deacetylase family, sirtuins, are conserved regulators of aging and cardiovascular and cerebrovascular diseases. The sirtuin SIRT6 is predominantly located in the nucleus and shows deacetylase activity for acetylated histone 3 lysine 56 and lysine 9 as well as for some non-histone proteins. Over the past decade, experimental analyses in rodents and non-human primates have demonstrated the critical role of SIRT6 in extending lifespan. Recent studies highlighted the pleiotropic protective actions of SIRT6 in angiogenesis and cardiovascular diseases, including atherosclerosis, hypertension, heart failure, and stroke. Mechanistically, SIRT6 participates in vascular diseases via epigenetic regulation of endothelial cells, vascular smooth muscle cells, and immune cells. Importantly, SIRT6 activators (e.g., MDL-800/MDL-811) have provided therapeutic value for treating age-related vascular disorders. Here, we summarized the roles of sirtuins in cardiovascular diseases; reviewed recent advances in the understanding of SIRT6 in vascular biology, cardiovascular aging, and diseases; highlighted its therapeutic potential; and discussed future perspectives.
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Affiliation(s)
- Si-Chong Ren
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China.
- Department of Nephrology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China.
| | - Xiangqi Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China.
| | - Hui Gong
- The Lab of Aging Research, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Han Wang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China.
| | - Chuan Wu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China.
| | - Pei-Heng Li
- Department of Thyroid and Parathyroid Surgery, Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Xiao-Feng Chen
- Department of Biochemistry and Molecular Biology, Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Jia-Hua Qu
- Laboratory of Cardiovascular Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, USA
| | - Xiaoqiang Tang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China.
- Correspondence should be addressed to: Dr. Xiaoqiang Tang, Key Laboratory of Birth Defects of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu 610041, China. E-mail:,
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16
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Cheng J, Wei W, Fang Y, Zhou N, Wu Q, Zhao Q. Sudden cardiac death and cardiac sodium channel diseases. JOURNAL OF FORENSIC SCIENCE AND MEDICINE 2022. [DOI: 10.4103/jfsm.jfsm_123_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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17
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Abstract
Nicotinamide adenine dinucleotide (NAD+) is a central metabolite involved in energy and redox homeostasis as well as in DNA repair and protein deacetylation reactions. Pharmacological or genetic inhibition of NAD+-degrading enzymes, external supplementation of NAD+ precursors, and transgenic overexpression of NAD+-generating enzymes have wide positive effects on metabolic health and age-associated diseases. NAD+ pools tend to decline with normal aging, obesity, and hypertension, which are all major risk factors for cardiovascular disease, and NAD+ replenishment extends healthspan, avoids metabolic syndrome, and reduces blood pressure in preclinical models. In addition, experimental elevation of NAD+ improves atherosclerosis, ischemic, diabetic, arrhythmogenic, hypertrophic, or dilated cardiomyopathies, as well as different modalities of heart failure. Here, we critically discuss cardiomyocyte-specific circuitries of NAD+ metabolism, comparatively evaluate distinct NAD+ precursors for their preclinical efficacy, and raise outstanding questions on the optimal design of clinical trials in which NAD+ replenishment or supraphysiological NAD+ elevations are assessed for the prevention or treatment of major cardiac diseases. We surmise that patients with hitherto intractable cardiac diseases such as heart failure with preserved ejection fraction may profit from the administration of NAD+ precursors. The development of such NAD+-centered treatments will rely on technological and conceptual progress on the fine regulation of NAD+ metabolism.
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Affiliation(s)
- Mahmoud Abdellatif
- Department of Cardiology, Medical University of Graz, Austria (M.A., S.S.).,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France (M.A., G.K.).,Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Institut national de la santé et de la recherche médicale (INSERM) U1138, Institut Universitaire de France (M.A., G.K.)
| | - Simon Sedej
- Department of Cardiology, Medical University of Graz, Austria (M.A., S.S.).,Institute of Physiology, Faculty of Medicine, University of Maribor, Slovenia (S.S.)
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France (M.A., G.K.).,Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Institut national de la santé et de la recherche médicale (INSERM) U1138, Institut Universitaire de France (M.A., G.K.).,Pôle de Biologie, Hôpital Européen Georges Pompidou, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris 7015, France (G.K.)
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18
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Hong JY, Lin H. Sirtuin Modulators in Cellular and Animal Models of Human Diseases. Front Pharmacol 2021; 12:735044. [PMID: 34650436 PMCID: PMC8505532 DOI: 10.3389/fphar.2021.735044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/24/2021] [Indexed: 12/22/2022] Open
Abstract
Sirtuins use NAD+ to remove various acyl groups from protein lysine residues. Through working on different substrate proteins, they display many biological functions, including regulation of cell proliferation, genome stability, metabolism, and cell migration. There are seven sirtuins in humans, SIRT1-7, each with unique enzymatic activities, regulatory mechanisms, subcellular localizations, and substrate scopes. They have been indicated in many human diseases, including cancer, neurodegeneration, microbial infection, metabolic and autoimmune diseases. Consequently, interests in development of sirtuin modulators have increased in the past decade. In this brief review, we specifically summarize genetic and pharmacological modulations of sirtuins in cancer, neurological, and cardiovascular diseases. We further anticipate this review will be helpful for scrutinizing the significance of sirtuins in the studied diseases.
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Affiliation(s)
- Jun Young Hong
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, United States
| | - Hening Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, United States.,Department of Chemistry and Chemical Biology, Howard Hughes Medical Institute, Cornell University, Ithaca, NY, United States
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19
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Joseph LC, Reyes MV, Homan EA, Gowen B, Avula UMR, Goulbourne CN, Wan EY, Elrod JW, Morrow JP. The mitochondrial calcium uniporter promotes arrhythmias caused by high-fat diet. Sci Rep 2021; 11:17808. [PMID: 34497331 PMCID: PMC8426388 DOI: 10.1038/s41598-021-97449-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 08/13/2021] [Indexed: 12/16/2022] Open
Abstract
Obesity and diabetes increase the risk of arrhythmia and sudden cardiac death. However, the molecular mechanisms of arrhythmia caused by metabolic abnormalities are not well understood. We hypothesized that mitochondrial dysfunction caused by high fat diet (HFD) promotes ventricular arrhythmia. Based on our previous work showing that saturated fat causes calcium handling abnormalities in cardiomyocytes, we hypothesized that mitochondrial calcium uptake contributes to HFD-induced mitochondrial dysfunction and arrhythmic events. For experiments, we used mice with conditional cardiac-specific deletion of the mitochondrial calcium uniporter (Mcu), which is required for mitochondrial calcium uptake, and littermate controls. Mice were used for in vivo heart rhythm monitoring, perfused heart experiments, and isolated cardiomyocyte experiments. MCU KO mice are protected from HFD-induced long QT, inducible ventricular tachycardia, and abnormal ventricular repolarization. Abnormal repolarization may be due, at least in part, to a reduction in protein levels of voltage gated potassium channels. Furthermore, isolated cardiomyocytes from MCU KO mice exposed to saturated fat are protected from increased reactive oxygen species (ROS), mitochondrial dysfunction, and abnormal calcium handling. Activation of calmodulin-dependent protein kinase (CaMKII) corresponds with the increase in arrhythmias in vivo. Additional experiments showed that CaMKII inhibition protects cardiomyocytes from the mitochondrial dysfunction caused by saturated fat. Hearts from transgenic CaMKII inhibitor mice were protected from inducible ventricular tachycardia after HFD. These studies identify mitochondrial dysfunction caused by calcium overload as a key mechanism of arrhythmia during HFD. This work indicates that MCU and CaMKII could be therapeutic targets for arrhythmia caused by metabolic abnormalities.
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Affiliation(s)
- Leroy C Joseph
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Michael V Reyes
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Edwin A Homan
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Blake Gowen
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Uma Mahesh R Avula
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Chris N Goulbourne
- Center for Dementia Research, Nathan S. Kline Institute, Orangeburg, NY, USA
| | - Elaine Y Wan
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - John W Elrod
- Lewis Katz School of Medicine at Temple University, 3500 N Broad St, MERB 949, Philadelphia, PA, USA
| | - John P Morrow
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA.
- College of Physicians and Surgeons of Columbia University, PH10-203, 650 W 168th Street, New York, NY, 10032, USA.
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20
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Zhang Z, Chen H, Chen W, Zhang Z, Li R, Xu J, Yang C, Chen M, Liu S, Li Y, Wang T, Tu X, Huang Z. Genetic Characteristics and Transcriptional Regulation of Sodium Channel Related Genes in Chinese Patients With Brugada Syndrome. Front Cardiovasc Med 2021; 8:714844. [PMID: 34422936 PMCID: PMC8374431 DOI: 10.3389/fcvm.2021.714844] [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: 05/26/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To investigate the genetic characteristics and transcriptional regulation of the SCN5A gene of Brugada syndrome (BrS) patients in China. Methods: Using PubMed, Medline, China National Knowledge Internet (CNKI), and Wanfang Database, Chinese patients with BrS who underwent SCN5A gene testing were studied. Results: A total of 27 suitable studies involving Chinese BrS patients who underwent the SCN5A gene test were included. A total of 55 SCN5A gene mutations/variations were reported in Chinese BrS patients, including 10 from southern China and 45 from northern China. Mutations/variations of BrS patients from southern China mostly occurred in the regions of the α-subunit of Nav1.5, including DIII (Domain III), DIV, DIII-DIV, C-terminus regions, and the 3'UTR region. Furthermore, we analyzed the post-transcriptional modifications (PTMs) throughout the Nav1.5 protein encoded by SCN5A and found that the PTM changes happened in 72.7% of BrS patients from southern China and 26.7% from northern China. Conclusions: SCN5A mutations/variations of BrS patients in southern China mostly occurred in the DIII-DIV to C-terminus region and the 3'-UTR region of the SCN5A gene, different from northern China. PTM changes were consistent with the mutation/variation distribution of SCN5A, which might be involved in the regulation of the pathogenesis of BrS patients.
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Affiliation(s)
- Ziguan Zhang
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Hongwei Chen
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Wenbo Chen
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zhenghao Zhang
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Runjing Li
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Jiajia Xu
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Cui Yang
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Minwei Chen
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Shixiao Liu
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yanling Li
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - TzungDau Wang
- Department of Internal Medicine, Cardiovascular Center and Division of Cardiology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, China
| | - Xin Tu
- Cardio-X Center, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Zhengrong Huang
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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21
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Functional cross-talk between phosphorylation and disease-causing mutations in the cardiac sodium channel Na v1.5. Proc Natl Acad Sci U S A 2021; 118:2025320118. [PMID: 34373326 PMCID: PMC8379932 DOI: 10.1073/pnas.2025320118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The cardiac sodium channel (Nav1.5) is crucial for generating a regular heartbeat. It is thus not surprising that Nav1.5 mutations have been linked to life-threatening arrhythmias. Interestingly, Nav1.5 activity can also be altered by posttranslational modifications, such as tyrosine phosphorylation. Our combination of protein engineering and molecular modeling has revealed that the detrimental effect of a long QT3 patient mutation is only exposed when a proximal tyrosine is phosphorylated. This suggests a dynamic cross-talk between the genetic mutation and a neighboring phosphorylation, a phenomenon that could be important in other classes of proteins. Additionally, we show that phosphorylation can affect the channel’s sensitivity toward clinically relevant drugs, a finding that may prove important when devising patient-specific treatment plans. The voltage-gated sodium channel Nav1.5 initiates the cardiac action potential. Alterations of its activation and inactivation properties due to mutations can cause severe, life-threatening arrhythmias. Yet despite intensive research efforts, many functional aspects of this cardiac channel remain poorly understood. For instance, Nav1.5 undergoes extensive posttranslational modification in vivo, but the functional significance of these modifications is largely unexplored, especially under pathological conditions. This is because most conventional approaches are unable to insert metabolically stable posttranslational modification mimics, thus preventing a precise elucidation of the contribution by these modifications to channel function. Here, we overcome this limitation by using protein semisynthesis of Nav1.5 in live cells and carry out complementary molecular dynamics simulations. We introduce metabolically stable phosphorylation mimics on both wild-type (WT) and two pathogenic long-QT mutant channel backgrounds and decipher functional and pharmacological effects with unique precision. We elucidate the mechanism by which phosphorylation of Y1495 impairs steady-state inactivation in WT Nav1.5. Surprisingly, we find that while the Q1476R patient mutation does not affect inactivation on its own, it enhances the impairment of steady-state inactivation caused by phosphorylation of Y1495 through enhanced unbinding of the inactivation particle. We also show that both phosphorylation and patient mutations can impact Nav1.5 sensitivity toward the clinically used antiarrhythmic drugs quinidine and ranolazine, but not flecainide. The data highlight that functional effects of Nav1.5 phosphorylation can be dramatically amplified by patient mutations. Our work is thus likely to have implications for the interpretation of mutational phenotypes and the design of future drug regimens.
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22
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Chiu YH, Medina CB, Doyle CA, Zhou M, Narahari AK, Sandilos JK, Gonye EC, Gao HY, Guo SY, Parlak M, Lorenz UM, Conrads TP, Desai BN, Ravichandran KS, Bayliss DA. Deacetylation as a receptor-regulated direct activation switch for pannexin channels. Nat Commun 2021; 12:4482. [PMID: 34301959 PMCID: PMC8302610 DOI: 10.1038/s41467-021-24825-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 07/12/2021] [Indexed: 02/07/2023] Open
Abstract
Activation of Pannexin 1 (PANX1) ion channels causes release of intercellular signaling molecules in a variety of (patho)physiological contexts. PANX1 can be activated by G protein-coupled receptors (GPCRs), including α1-adrenergic receptors (α1-ARs), but how receptor engagement leads to channel opening remains unclear. Here, we show that GPCR-mediated PANX1 activation can occur via channel deacetylation. We find that α1-AR-mediated activation of PANX1 channels requires Gαq but is independent of phospholipase C or intracellular calcium. Instead, α1-AR-mediated PANX1 activation involves RhoA, mammalian diaphanous (mDia)-related formin, and a cytosolic lysine deacetylase activated by mDia - histone deacetylase 6. HDAC6 associates with PANX1 and activates PANX1 channels, even in excised membrane patches, suggesting direct deacetylation of PANX1. Substitution of basally-acetylated intracellular lysine residues identified on PANX1 by mass spectrometry either prevents HDAC6-mediated activation (K140/409Q) or renders the channels constitutively active (K140R). These data define a non-canonical RhoA-mDia-HDAC6 signaling pathway for GαqPCR activation of PANX1 channels and uncover lysine acetylation-deacetylation as an ion channel silencing-activation mechanism.
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Affiliation(s)
- Yu-Hsin Chiu
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA.
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan.
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan.
| | - Christopher B Medina
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Catherine A Doyle
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Ming Zhou
- Inova Center for Personalized Health, Inova Schar Cancer Institute, Fairfax, VA, USA
| | - Adishesh K Narahari
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Joanna K Sandilos
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Elizabeth C Gonye
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Hong-Yu Gao
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Shih Yi Guo
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Mahmut Parlak
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Ulrike M Lorenz
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Thomas P Conrads
- Inova Center for Personalized Health, Inova Schar Cancer Institute, Fairfax, VA, USA
| | - Bimal N Desai
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Kodi S Ravichandran
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Douglas A Bayliss
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA.
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Difference of pain vulnerability in adult and juvenile rodents: the role of SIRT1-mediated ClC-3 trafficking in sensory neurons. Pain 2021; 162:1882-1896. [PMID: 33433144 DOI: 10.1097/j.pain.0000000000002176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022]
Abstract
ABSTRACT Adults are more likely to suffer from chronic pain than minors, and its underlying mechanism remains unclear. SIRT1 an important age-related protein with function of lifespan extension; whether SIRT1 plays a role in the different pain vulnerability of adult and juvenile remains unclear. Here, we found that the expression level of SIRT1 in dorsal root ganglia (DRG) was related to the pain vulnerability. After nerve injury, the expression of SIRT1 in DRG was decreased in adult rodents whereas increased in juvenile rodents. Differential manipulation of SIRT1 abolished the different pain vulnerability between adult and juvenile rodents. Furthermore, SIRT1 interacted with ClC-3 channel and mediated ClC-3 membrane trafficking and Cl- current in DRG neurons. Differential manipulation of ClC-3 also abolished the difference in pain vulnerability between adult and juvenile rodents. The different anti-inflammatory ability determined the different change trends of SIRT1 and ClC-3 trafficking contributed to the different pain vulnerability in adult and juvenile rodents. In addition, the serum SIRT1 level was negatively correlated with the pain score in patients with chronic pain. These findings revealed the mechanism of the difference in pain vulnerability between adult and juvenile rodents and provided evidence for age-specific treatment of chronic pain.
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24
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He Y, Huang W, Zhang C, Chen L, Xu R, Li N, Wang F, Han L, Yang M, Zhang D. Energy metabolism disorders and potential therapeutic drugs in heart failure. Acta Pharm Sin B 2021; 11:1098-1116. [PMID: 34094822 PMCID: PMC8144890 DOI: 10.1016/j.apsb.2020.10.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/27/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023] Open
Abstract
Heart failure (HF) is a global public health problem with high morbidity and mortality. A large number of studies have shown that HF is caused by severe energy metabolism disorders, which result in an insufficient heart energy supply. This deficiency causes cardiac pump dysfunction and systemic energy metabolism failure, which determine the development of HF and recovery of heart. Current HF therapy acts by reducing heart rate and cardiac preload and afterload, treating the HF symptomatically or delaying development of the disease. Drugs aimed at cardiac energy metabolism have not yet been developed. In this review, we outline the main characteristics of cardiac energy metabolism in healthy hearts, changes in metabolism during HF, and related pathways and targets of energy metabolism. Finally, we discuss drugs that improve cardiac function via energy metabolism to provide new research ideas for the development and application of drugs for treating HF.
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25
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Junior AG, de Almeida TL, Tolouei SEL, Dos Santos AF, Dos Reis Lívero FA. Predictive Value of Sirtuins in Acute Myocardial Infarction - Bridging the Bench to the Clinical Practice. Curr Pharm Des 2021; 27:206-216. [PMID: 33019924 DOI: 10.2174/1381612826666201005153848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 08/09/2020] [Indexed: 11/22/2022]
Abstract
Acute myocardial infarction (AMI) is a non-transmissible condition with high prevalence, morbidity, and mortality. Different strategies for the management of AMI are employed worldwide, but its early diagnosis remains a major challenge. Many molecules have been proposed in recent years as predictive agents in the early detection of AMI, including troponin (C, T, and I), creatine kinase MB isoenzyme, myoglobin, heart-type fatty acid-binding protein, and a family of histone deacetylases with enzymatic activities named sirtuins. Sirtuins may be used as predictive or complementary treatment strategies and the results of recent preclinical studies are promising. However, human clinical trials and data are scarce, and many issues have been raised regarding the predictive values of sirtuins. The present review summarizes research on the predictive value of sirtuins in AMI. We also briefly summarize relevant clinical trials and discuss future perspectives and possible clinical applications.
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Affiliation(s)
- Arquimedes G Junior
- Laboratory of Electrophysiology and Cardiovascular Pharmacology, Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Thiago L de Almeida
- Laboratory of Electrophysiology and Cardiovascular Pharmacology, Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Sara E L Tolouei
- Laboratory of Reproductive Toxicology, Department of Pharmacology, Federal University of Parana, Curitiba, PR, Brazil
| | - Andreia F Dos Santos
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Animal Science with Emphasis on Bioactive Products, Paranaense University, Umuarama, PR, Brazil
| | - Francislaine A Dos Reis Lívero
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Animal Science with Emphasis on Bioactive Products, Paranaense University, Umuarama, PR, Brazil
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26
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Chen S, Wu Y, Qin X, Wen P, Liu J, Yang M. Global gene expression analysis using RNA-seq reveals the new roles of Panax notoginseng Saponins in ischemic cardiomyocytes. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113639. [PMID: 33301914 DOI: 10.1016/j.jep.2020.113639] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 11/10/2020] [Accepted: 11/23/2020] [Indexed: 05/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Panax notoginseng saponins (PNS), the main active ingredients of Panax notoginseng (Burkill) F.H.Chen, have been clinically used for cardiovascular diseases treatment in China as the Traditional Chinese Medicine (TCM) (Duan et al., 2017). Evidence demonstrated that PNS protected cardiomyocytes from myocardial ischemia, but the more underlying molecular mechanisms of the protective effect are still unclear. The aims of this study are to systematically know the function of PNS and discover new roles of PNS in ischemic cardiomyocytes. MATERIALS AND METHODS To confirm PNS function on ischemic cardiomyopathy, we established in vitro myocardial ischemia model on H9C2 cardiomyocyte line, which was induced by oxygen-glucose depletion (OGD). Then RNA-seq was carried out to systematically analyze global gene expression. This study was aimed to systematically investigate the protective effect and more potential molecular mechanisms of PNS on H9C2 cardiomyocytes in vitro through whole-transcriptome analysis with total RNA sequencing (RNA-Seq). RESULTS PNS exhibited anti-apoptotic effect in H9C2 cardiomyocytes in OGD-induced myocardial ischemia model. Through RNA-seq, we found that OGD affected expression profiling of many genes, including upregulated and downregulated genes. PNS inhibited cardiomyocyte apoptosis and death through rescuing cell cycle arrest, the DNA double-strand breakage repair process and chromosome segregation. Interestingly, for the canonical signaling pathways regulation, RNA-seq showed PNS could inhibit cardiac hypertrophy, MAPK signaling pathway, and re-activate PI3K/AKT and AMPK signaling pathways. Experimental data also confirmed the PNS could protect cardiomyocytes from OGD-induced apoptosis through activating PI3K/AKT and AMPK signaling pathways. Moreover, RNA-seq demonstrated that the expression levels of many non-coding RNAs, such as miRNAs and lncRNAs, were significantly affected after PNS treatment, suggesting that PNS could protect cardiomyocytes through regulating non-coding RNAs. CONCLUSION RNA-seq systematically revealed different novel roles of Panax Notoginseng Saponins (PNS) in protecting cardiomyocytes from apoptosis, induced by myocardial ischemia, through rescuing cell cycle arrest and cardiac hypertrophy, re-activating the DNA double-strand breakage repair process, chromosome segregation, PI3K/Akt and AMPK signaling pathways and regulating non-coding RNAs.
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Affiliation(s)
- Shaoxian Chen
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China; Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Yueheng Wu
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China; Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Xianyu Qin
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Pengju Wen
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Juli Liu
- Department of Pediatrics, Indiana University School of Medicine, 1044 W Walnut St, Indianapolis, 46202, IN, USA.
| | - Min Yang
- Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China.
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27
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Safabakhsh S, Panwar P, Barichello S, Sangha SS, Hanson PJ, Van Petegem F, Laksman Z. THE ROLE OF PHOSPHORYLATION IN ATRIAL FIBRILLATION: A FOCUS ON MASS SPECTROMETRY APPROACHES. Cardiovasc Res 2021; 118:1205-1217. [PMID: 33744917 DOI: 10.1093/cvr/cvab095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/16/2021] [Indexed: 11/14/2022] Open
Abstract
Atrial fibrillation (AF) is the most common arrhythmia worldwide. It is associated with significant increases in morbidity in the form of stroke and heart failure, and a doubling in all-cause mortality. The pathophysiology of AF is incompletely understood, and this has contributed to a lack of effective treatments and disease-modifying therapies. An important cellular process that may explain how risk factors give rise to AF includes post-translational modification (PTM) of proteins. As the most commonly occurring PTM, protein phosphorylation is especially relevant. Although many methods exist for studying protein phosphorylation, a common and highly resolute technique is mass spectrometry (MS). This review will discuss recent evidence surrounding the role of protein phosphorylation in the pathogenesis of AF. MS-based technology to study phosphorylation and uses of MS in other areas of medicine such as oncology will also be presented. Based on these data, future goals and experiments will be outlined that utilize MS technology to better understand the role of phosphorylation in AF and elucidate its role in AF pathophysiology. This may ultimately allow for the development of more effective AF therapies.
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Affiliation(s)
- Sina Safabakhsh
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pankaj Panwar
- AbCellera Biologicals Inc., Vancouver, British Columbia, Canada
| | - Scott Barichello
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sarabjit S Sangha
- Cellular and Regenerative Medicine Centre, BC Children's Hospital Research Institute, 950 West 28th Avenue, Vancouver, British Columbia, Canada.,Molecular Cardiac Physiology Group, Departments of Biomedical Physiology and Kinesiology and Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada
| | - Paul J Hanson
- UBC Heart Lung Innovation Centre, Vancouver, British Columbia, Canada.,UBC Department of Pathology and Laboratory Medicine, Vancouver, British Columbia, Canada
| | - Filip Van Petegem
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Zachary Laksman
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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28
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Soni SK, Basu P, Singaravel M, Sharma R, Pandi-Perumal SR, Cardinali DP, Reiter RJ. Sirtuins and the circadian clock interplay in cardioprotection: focus on sirtuin 1. Cell Mol Life Sci 2021; 78:2503-2515. [PMID: 33388853 PMCID: PMC11073088 DOI: 10.1007/s00018-020-03713-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/09/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023]
Abstract
Chronic disruption of circadian rhythms which include intricate molecular transcription-translation feedback loops of evolutionarily conserved clock genes has serious health consequences and negatively affects cardiovascular physiology. Sirtuins (SIRTs) are nuclear, cytoplasmic and mitochondrial histone deacetylases that influence the circadian clock with clock-controlled oscillatory protein, NAMPT, and its metabolite NAD+. Sirtuins are linked to the multi-organ protective role of melatonin, particularly in acute kidney injury and in cardiovascular diseases, where melatonin, via upregulation of SIRT1 expression, inhibits the apoptotic pathway. This review focuses on SIRT1, an NAD+-dependent class III histone deacetylase which counterbalances the intrinsic histone acetyltransferase activity of one of the clock genes, CLOCK. SIRT1 is involved in the development of cardiomyocytes, regulation of voltage-gated cardiac sodium ion channels via deacetylation, prevention of atherosclerotic plaque formation in the cardiovascular system, protection against oxidative damage and anti-thrombotic actions. Overall, SIRT1 has a see-saw effect on cardioprotection, with low levels being cardioprotective and higher levels leading to cardiac hypertrophy.
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Affiliation(s)
- Sanjeev Kumar Soni
- Chronobiology Laboratory, Department of Zoology, Institute of Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Priyoneel Basu
- Chronobiology Laboratory, Department of Zoology, Institute of Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Muniyandi Singaravel
- Chronobiology Laboratory, Department of Zoology, Institute of Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | | | - Daniel P Cardinali
- Faculty of Medical Sciences, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA.
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29
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Lin Q, Zuo W, Liu Y, Wu K, Liu Q. NAD + and cardiovascular diseases. Clin Chim Acta 2021; 515:104-110. [PMID: 33485900 DOI: 10.1016/j.cca.2021.01.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022]
Abstract
Nicotinamide adenine dinucleotide (NAD) plays pivotal roles in controlling many biochemical processes. 'NAD' refers to the chemical backbone irrespective of charge, whereas 'NAD+' and 'NADH' refers to oxidized and reduced forms, respectively. NAD+/NADH ratio is essential for maintaining cellular reduction-oxidation (redox) homeostasis and for modulating energy metabolism. As a sensing or consuming enzyme of the poly (ADP-ribose) polymerase 1 (PARP1), the cyclic ADP-ribose (cADPR) synthases (CD38 and CD157), and sirtuin protein deacetylases (sirtuins, SIRTs), NAD+ participates in several key processes in cardiovascular disease. For example, NAD+ protects against metabolic syndrome, heart failure, ischemia-reperfusion (IR) injury, arrhythmia and hypertension. Accordingly, the subsequent loss of NAD+ in aging or during stress results in altered metabolic status and potentially increased disease susceptibility. Therefore, it is essential to maintain NAD+ or reduce loss in the heart. This review focuses on the involvement of NAD+ in the pathogenesis of cardiovascular disease and explores the effects of NAD+ boosting strategies in cardiovascular health.
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Affiliation(s)
- Qiuzhen Lin
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, PR China; Research Institute of Blood Lipid and Atherosclerosis, Central South University, PR China; Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, PR China; Cardiovascular Disease Research Center of Hunan Province, Changsha Hunan 410011, PR China
| | - Wanyun Zuo
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, PR China; Research Institute of Blood Lipid and Atherosclerosis, Central South University, PR China; Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, PR China; Cardiovascular Disease Research Center of Hunan Province, Changsha Hunan 410011, PR China
| | - Yaozhong Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, PR China; Research Institute of Blood Lipid and Atherosclerosis, Central South University, PR China; Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, PR China; Cardiovascular Disease Research Center of Hunan Province, Changsha Hunan 410011, PR China
| | - Keke Wu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, PR China; Research Institute of Blood Lipid and Atherosclerosis, Central South University, PR China; Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, PR China; Cardiovascular Disease Research Center of Hunan Province, Changsha Hunan 410011, PR China
| | - Qiming Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, PR China; Research Institute of Blood Lipid and Atherosclerosis, Central South University, PR China; Modern Cardiovascular Disease Clinical Technology Research Center of Hunan Province, PR China; Cardiovascular Disease Research Center of Hunan Province, Changsha Hunan 410011, PR China.
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Elrashidy RA, Hasan RA. Cilostazol preconditioning alleviates cyclophosphamide-induced cardiotoxicity in male rats: Mechanistic insights into SIRT1 signaling pathway. Life Sci 2020; 266:118822. [PMID: 33275987 DOI: 10.1016/j.lfs.2020.118822] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 01/08/2023]
Abstract
AIMS Cyclophosphamide (CYP) is a potent anticancer agent with well-known cardiotoxicity that limits its clinical applications. Cilostazol is a vosodilating drug, showing a cardioprotective effect in some cardiac disorders; however its effect in CYP-induced cardiotoxicity is still uncertain. We investigated the effect of cilostazol against CYP-induced cardiotoxicity and the contribution of SIRT1 signaling. MATERIALS AND METHODS 7 week-old male Wistar albino rats were treated with cilostazol (30 mg/kg/day, orally) in the absence or presence of SIRT1 inhibitor, EX-527 (5 mg/kg/day, IP) for 10 days and injected with CYP (200 mg/kg, IP) on the 7th day of the study. Age-matched rats were used as control group. On the 11th day, hearts were harvested for biochemical, immunoblotting and histological analyses. Markers of cardiac injury were assessed in plasma samples. KEY FINDINGS CYP injection contributed to cardiac injury manifested as significant increases in plasma activities of heart enzymes and cardiac troponin I levels. Cilostazol attenuated cardiac injury and minimized the histological lesions in hearts of CYP-treated rats. Cilostazol induced 3 fold up-regulation of SIRT1 and promoted the antioxidant defense response through FoxO1-related mechanism in hearts of CYP-treated rats. Cilostazol suppressed the CYP-induced up-regulation of PARP1 and p53, and blocked the NF-kB p65-mediated inflammatory response in hearts of CYP-treated rats. All the beneficial effects of cilostazol were almost abolished by EX-527. SIGNIFICANCE These data provided insights into the mechanism underlying the cardioprotective effect of cilostazol in CYP-treated rats through upregulation of SIRT1 signaling, suggesting that cilostazol might be a candidate modality for CYP-induced cardiotoxicity.
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Affiliation(s)
- Rania A Elrashidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
| | - Rehab A Hasan
- Histology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
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31
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Wang F, Tu Y, Gao Y, Chen H, Liu J, Zheng J. Smooth Muscle Sirtuin 1 Blocks Thoracic Aortic Aneurysm/Dissection Development in Mice. Cardiovasc Drugs Ther 2020; 34:641-650. [PMID: 32564302 DOI: 10.1007/s10557-020-07005-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
PURPOSE Advancing age is the major risk factor for thoracic aortic aneurysm/dissection (TAAD). However, the causative link between age-related molecules and TAAD remains elusive. Here, we investigated the role of Sirtuin 1 (SIRT1, also known as class III histone deacetylase), the best studied member of the longevity-related Sirtuin family, in TAAD development in vivo. METHODS We used male smooth muscle-specific SIRT1 transgenic (ST-Tg) mice, smooth muscle-specific SIRT1 knockout (ST-KO) mice, and their wild-type (WT) littermates on a C57BL/6J background to establish a TAAD model induced by oral administration of 3-aminopropionitrile fumarate (BAPN). We analyzed the incidence and fatality rates of TAAD in the groups. We examined matrix metallopeptidase 2 (MMP2) and MMP9 expression in aortas or cultured A7r5 cells via western blotting and real-time polymerase chain reaction (PCR). We performed chromatin immunoprecipitation (ChIP) to clarify the epigenetic mechanism of SIRT1-regulated MMP2 expression in vascular smooth muscle cells (VSMCs). RESULTS BAPN treatment markedly increased the incidence of TAAD in WT mice but caused less disease in ST-Tg mice. Moreover, ST-KO mice had the highest BAPN-induced TAAD fatality rate of all the groups. Mechanistically, SIRT1 overexpression resulted in lower MMP2 and MMP9 expression after BAPN treatment in both mouse aortas and cultured A7r5 cells. The downregulation of BAPN-induced MMP2 expression by SIRT1 was mediated by deacetylation of histone H3 lysine 9 (H3K9) on the Mmp2 promoter in the A7r5 cells. CONCLUSION Our findings suggest that SIRT1 expression in SMCs protects against TAAD and could be a novel therapeutic target for TAAD management.
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MESH Headings
- Acetylation
- Aortic Dissection/enzymology
- Aortic Dissection/genetics
- Aortic Dissection/pathology
- Aortic Dissection/prevention & control
- Animals
- Aorta, Thoracic/enzymology
- Aorta, Thoracic/pathology
- Aortic Aneurysm, Thoracic/enzymology
- Aortic Aneurysm, Thoracic/genetics
- Aortic Aneurysm, Thoracic/pathology
- Aortic Aneurysm, Thoracic/prevention & control
- Cell Line
- Disease Models, Animal
- Histones/metabolism
- Male
- Matrix Metalloproteinase 2/genetics
- Matrix Metalloproteinase 2/metabolism
- Matrix Metalloproteinase 9/genetics
- Matrix Metalloproteinase 9/metabolism
- Mice, Inbred C57BL
- Mice, Transgenic
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- Signal Transduction
- Sirtuin 1/genetics
- Sirtuin 1/metabolism
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Affiliation(s)
- Fang Wang
- Department of Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Yimin Tu
- Department of Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Yanxiang Gao
- Department of Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Houzao Chen
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jinjing Liu
- Key Laboratory of Rheumatology and Clinical Rheumatology, Ministry of Education, National Clinical Research Center for Dermatologic and Immunologic Diseases, Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Jingang Zheng
- Department of Cardiology, China-Japan Friendship Hospital, Beijing, China.
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Uno AT, Hitosugi M, Nakamura M, Nakanishi T, Mima T, Higuchi Y. Complement C9 expression is associated with damaged myocardial cells in pediatric sudden death cases of fulminant myocarditis. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2020. [DOI: 10.1186/s41935-020-00211-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Abstract
Background
Because disease progression is so fast in sudden death of acute fulminant myocarditis, damage of myocardial cells is not evident in routine hematoxylin and eosin staining. To understand damage to myocardial cells and the mechanism of sudden death, immunohistochemical staining was performed for two forensic autopsy cases.
Case presentation
The patients were a healthy 5-year-old girl and 8-year-old boy. They suddenly died within 2 days of appearance of flu-like symptoms. An autopsy showed accumulation of yellowish-clear pericardial fluid containing fibrin deposits, fluid blood in the heart, and congestion of visceral organs. Histologically, minor necrosis or degeneration of myocardial cells with mainly lymphocytic infiltration was observed sometimes in tissue sections. Immunohistochemically, positive complement C9 staining and negative sirtuin 1 staining were found. These findings suggested wide damage of myocardial cells, even in regions with no marked changes in myocardial cells with hematoxylin and eosin staining. These areas corresponded to those with strong accumulation of lymphocytes.
Conclusions
Immunohistochemistry for complement C9 and sirtuin 1 might become a new tool for evaluating damage of myocardial cells of fulminant acute myocarditis.
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Braun N, Sheikh ZP, Pless SA. The current chemical biology tool box for studying ion channels. J Physiol 2020; 598:4455-4471. [DOI: 10.1113/jp276695] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022] Open
Affiliation(s)
- N. Braun
- Department of Drug Design and Pharmacology University of Copenhagen Jagtvej 160 Copenhagen 2100 Denmark
| | - Z. P. Sheikh
- Department of Drug Design and Pharmacology University of Copenhagen Jagtvej 160 Copenhagen 2100 Denmark
| | - S. A. Pless
- Department of Drug Design and Pharmacology University of Copenhagen Jagtvej 160 Copenhagen 2100 Denmark
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Xu W, Li L, Zhang L. NAD + Metabolism as an Emerging Therapeutic Target for Cardiovascular Diseases Associated With Sudden Cardiac Death. Front Physiol 2020; 11:901. [PMID: 32903597 PMCID: PMC7438569 DOI: 10.3389/fphys.2020.00901] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022] Open
Abstract
In addition to its central role in mediating oxidation reduction in fuel metabolism and bioenergetics, nicotinamide adenine dinucleotide (NAD+) has emerged as a vital co-substrate for a number of proteins involved in diverse cellular processes, including sirtuins, poly(ADP-ribose) polymerases and cyclic ADP-ribose synthetases. The connection with aging and age-associated diseases has led to a new wave of research in the cardiovascular field. Here, we review the basics of NAD+ homeostasis, the molecular physiology and new advances in ischemic-reperfusion injury, heart failure, and arrhythmias, all of which are associated with increased risks for sudden cardiac death. Finally, we summarize the progress of NAD+-boosting therapy in human cardiovascular diseases and the challenges for future studies.
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Affiliation(s)
- Weiyi Xu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Le Li
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lilei Zhang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
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35
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Scholman KT, Meijborg VMF, Gálvez-Montón C, Lodder EM, Boukens BJ. From Genome-Wide Association Studies to Cardiac Electrophysiology: Through the Maze of Biological Complexity. Front Physiol 2020; 11:557. [PMID: 32536879 PMCID: PMC7267057 DOI: 10.3389/fphys.2020.00557] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 05/04/2020] [Indexed: 12/19/2022] Open
Abstract
Genome Wide Association Studies (GWAS) have provided an enormous amount of data on genomic loci associated with cardiac electrophysiology and arrhythmias. Clinical relevance, however, remains unclear since GWAS do not provide a mechanistic explanation for this association. Determining the electrophysiological relevance of variants for arrhythmias would aid development of risk stratification models for patients with arrhythmias. In this review, we give an overview of genetic variants related to ECG intervals and arrhythmogenic pathologies and discuss how these variants may influence cardiac electrophysiology and the occurrence of arrhythmias.
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Affiliation(s)
- Koen T Scholman
- Department of Medical Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Veronique M F Meijborg
- Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Netherlands Heart Institute, Utrecht, Netherlands
| | - Carolina Gálvez-Montón
- ICREC Research Program, Germans Trias i Pujol Health Science Research Institute, Badalona, Spain.,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain
| | - Elisabeth M Lodder
- Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Bastiaan J Boukens
- Department of Medical Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Department of Experimental Cardiology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
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36
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Packer M. Autophagy-dependent and -independent modulation of oxidative and organellar stress in the diabetic heart by glucose-lowering drugs. Cardiovasc Diabetol 2020; 19:62. [PMID: 32404204 PMCID: PMC7222526 DOI: 10.1186/s12933-020-01041-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/09/2020] [Indexed: 02/07/2023] Open
Abstract
Autophagy is a lysosome-dependent intracellular degradative pathway, which mediates the cellular adaptation to nutrient and oxygen depletion as well as to oxidative and endoplasmic reticulum stress. The molecular mechanisms that stimulate autophagy include the activation of energy deprivation sensors, sirtuin-1 (SIRT1) and adenosine monophosphate-activated protein kinase (AMPK). These enzymes not only promote organellar integrity directly, but they also enhance autophagic flux, which leads to the removal of dysfunctional mitochondria and peroxisomes. Type 2 diabetes is characterized by suppression of SIRT1 and AMPK signaling as well as an impairment of autophagy; these derangements contribute to an increase in oxidative stress and the development of cardiomyopathy. Antihyperglycemic drugs that signal through insulin may further suppress autophagy and worsen heart failure. In contrast, metformin and SGLT2 inhibitors activate SIRT1 and/or AMPK and promote autophagic flux to varying degrees in cardiomyocytes, which may explain their benefits in experimental cardiomyopathy. However, metformin and SGLT2 inhibitors differ meaningfully in the molecular mechanisms that underlie their effects on the heart. Whereas metformin primarily acts as an agonist of AMPK, SGLT2 inhibitors induce a fasting-like state that is accompanied by ketogenesis, a biomarker of enhanced SIRT1 signaling. Preferential SIRT1 activation may also explain the ability of SGLT2 inhibitors to stimulate erythropoiesis and reduce uric acid (a biomarker of oxidative stress)—effects that are not seen with metformin. Changes in both hematocrit and serum urate are the most important predictors of the ability of SGLT2 inhibitors to reduce the risk of cardiovascular death and hospitalization for heart failure in large-scale trials. Metformin and SGLT2 inhibitors may also differ in their ability to mitigate diabetes-related increases in intracellular sodium concentration and its adverse effects on mitochondrial functional integrity. Differences in the actions of SGLT2 inhibitors and metformin may reflect the distinctive molecular pathways that explain differences in the cardioprotective effects of these drugs.
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Affiliation(s)
- Milton Packer
- Baylor Heart and Vascular Institute, Baylor University Medical Center, 621 N. Hall Street, Dallas, TX, 75226, USA. .,Imperial College, London, UK.
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37
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Khoo KK, Galleano I, Gasparri F, Wieneke R, Harms H, Poulsen MH, Chua HC, Wulf M, Tampé R, Pless SA. Chemical modification of proteins by insertion of synthetic peptides using tandem protein trans-splicing. Nat Commun 2020; 11:2284. [PMID: 32385250 PMCID: PMC7210297 DOI: 10.1038/s41467-020-16208-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/20/2020] [Indexed: 12/20/2022] Open
Abstract
Manipulation of proteins by chemical modification is a powerful way to decipher their function. However, most ribosome-dependent and semi-synthetic methods have limitations in the number and type of modifications that can be introduced, especially in live cells. Here, we present an approach to incorporate single or multiple post-translational modifications or non-canonical amino acids into proteins expressed in eukaryotic cells. We insert synthetic peptides into GFP, NaV1.5 and P2X2 receptors via tandem protein trans-splicing using two orthogonal split intein pairs and validate our approach by investigating protein function. We anticipate the approach will overcome some drawbacks of existing protein enigineering methods.
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Affiliation(s)
- K K Khoo
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - I Galleano
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - F Gasparri
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - R Wieneke
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt, Max-von-Laue Strasse 9, 60438, Frankfurt/Main, Germany
| | - H Harms
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - M H Poulsen
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - H C Chua
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - M Wulf
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - R Tampé
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt, Max-von-Laue Strasse 9, 60438, Frankfurt/Main, Germany
| | - S A Pless
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark.
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38
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Yang HY, Lin FZ, Yang HW, Yu PL, Huang SM, Chen YC, Tsai CS, Lin CY. The effect of Sirt1 deficiency on Ca 2+ and Na + regulation in mouse ventricular myocytes. J Cell Mol Med 2020; 24:6762-6772. [PMID: 32342656 PMCID: PMC7299725 DOI: 10.1111/jcmm.15327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/06/2020] [Accepted: 04/12/2020] [Indexed: 12/19/2022] Open
Abstract
This study addressed the hypothesis that cardiac Sirtuin 1 (Sirt1) deficiency alters cardiomyocyte Ca2+ and Na+ regulation, leading to cardiac dysfunction and arrhythmogenesis. We used mice with cardiac‐specific Sirt1 knockout (Sirt1−/−). Sirt1flox/flox mice were served as control. Sirt1−/− mice showed impaired cardiac ejection fraction with increased ventricular spontaneous activity and burst firing compared with those in control mice. The arrhythmic events were suppressed by KN93 and ranolazine. Reduction in Ca2+ transient amplitudes and sarcoplasmic reticulum (SR) Ca2+ stores, and increased SR Ca2+ leak were shown in the Sirt1−/− mice. Electrophysiological measurements were performed using patch‐clamp method. While L‐type Ca2+ current (ICa, L) was smaller in Sirt1−/− myocytes, reverse‐mode Na+/Ca2+ exchanger (NCX) current was larger compared with those in control myocytes. Late Na+ current (INa, L) was enhanced in the Sirt1−/− mice, alongside with elevated cytosolic Na+ level. Increased cytosolic and mitochondrial reactive oxygen species (ROS) were shown in Sirt1−/− mice. Sirt1−/− cardiomyocytes showed down‐regulation of L‐type Ca2+ channel α1c subunit (Cav1.2) and sarcoplasmic/endoplasmic reticulum Ca2+ ATPase 2a (SERCA2a), but up‐regulation of Ca2+/calmodulin‐dependent protein kinase II and NCX. In conclusions, these findings suggest that deficiency of Sirt1 impairs the regulation of intracellular Ca2+ and Na+ in cardiomyocytes, thereby provoking cardiac dysfunction and arrhythmogenesis.
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Affiliation(s)
- Hsiang-Yu Yang
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Feng-Zhi Lin
- Grade institute of life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Hui-Wen Yang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Ling Yu
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Yao-Chang Chen
- Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Sung Tsai
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei, Taiwan
| | - Chih-Yuan Lin
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
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39
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Matasic DS, Yoon JY, McLendon JM, Mehdi H, Schmidt MS, Greiner AM, Quinones P, Morgan GM, Boudreau RL, Irani K, Brenner C, London B. Modulation of the cardiac sodium channel Na V1.5 peak and late currents by NAD + precursors. J Mol Cell Cardiol 2020; 141:70-81. [PMID: 32209328 PMCID: PMC7234910 DOI: 10.1016/j.yjmcc.2020.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/09/2019] [Accepted: 01/08/2020] [Indexed: 01/02/2023]
Abstract
RATIONALE The cardiac sodium channel NaV1.5, encoded by SCN5A, produces the rapidly inactivating depolarizing current INa that is responsible for the initiation and propagation of the cardiac action potential. Acquired and inherited dysfunction of NaV1.5 results in either decreased peak INa or increased residual late INa (INa,L), leading to tachy/bradyarrhythmias and sudden cardiac death. Previous studies have shown that increased cellular NAD+ and NAD+/NADH ratio increase INa through suppression of mitochondrial reactive oxygen species and PKC-mediated NaV1.5 phosphorylation. In addition, NAD+-dependent deacetylation of NaV1.5 at K1479 by Sirtuin 1 increases NaV1.5 membrane trafficking and INa. The role of NAD+ precursors in modulating INa remains unknown. OBJECTIVE To determine whether and by which mechanisms the NAD+ precursors nicotinamide riboside (NR) and nicotinamide (NAM) affect peak INa and INa,Lin vitro and cardiac electrophysiology in vivo. METHODS AND RESULTS The effects of NAD+ precursors on the NAD+ metabolome and electrophysiology were studied using HEK293 cells expressing wild-type and mutant NaV1.5, rat neonatal cardiomyocytes (RNCMs), and mice. NR increased INa in HEK293 cells expressing NaV1.5 (500 μM: 51 ± 18%, p = .02, 5 mM: 59 ± 22%, p = .03) and RNCMs (500 μM: 60 ± 26%, p = .02, 5 mM: 74 ± 39%, p = .03) while reducing INa,L at the higher concentration (RNCMs, 5 mM: -45 ± 11%, p = .04). NR (5 mM) decreased NaV1.5 K1479 acetylation but increased INa in HEK293 cells expressing a mutant form of NaV1.5 with disruption of the acetylation site (NaV1.5-K1479A). Disruption of the PKC phosphorylation site abolished the effect of NR on INa. Furthermore, NAM (5 mM) had no effect on INa in RNCMs or in HEK293 cells expressing wild-type NaV1.5, but increased INa in HEK293 cells expressing NaV1.5-K1479A. Dietary supplementation with NR for 10-12 weeks decreased QTc in C57BL/6 J mice (0.35% NR: -4.9 ± 2.0%, p = .14; 1.0% NR: -9.5 ± 2.8%, p = .01). CONCLUSIONS NAD+ precursors differentially regulate NaV1.5 via multiple mechanisms. NR increases INa, decreases INa,L, and warrants further investigation as a potential therapy for arrhythmic disorders caused by NaV1.5 deficiency and/or dysfunction.
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Affiliation(s)
- Daniel S Matasic
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Department of Molecular Physiology and Biophysics, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Jin-Young Yoon
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Jared M McLendon
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Haider Mehdi
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Mark S Schmidt
- Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Department of Biochemistry, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Alexander M Greiner
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Pravda Quinones
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Gina M Morgan
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Ryan L Boudreau
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Kaikobad Irani
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Charles Brenner
- Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Department of Biochemistry, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America
| | - Barry London
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America; Department of Molecular Physiology and Biophysics, University of Iowa Carver College of Medicine, Iowa City, IA, United States of America.
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40
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Zheng LN, Guo FQ, Li ZS, Wang Z, Ma JH, Wang T, Wei JF, Zhang WW. Dexmedetomidine protects against lidocaine-induced neurotoxicity through SIRT1 downregulation-mediated activation of FOXO3a. Hum Exp Toxicol 2020; 39:1213-1223. [PMID: 32228195 DOI: 10.1177/0960327120914971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lidocaine, a typical local anesthetic, has been shown to directly induce neurotoxicity in clinical settings. Dexmedetomidine (DEX) is an alpha-2-adrenoreceptor agonist that has been used as anxiolytic, sedative, and analgesic agent which has recently found to protect against lidocaine-induced neurotoxicity. Nicotinamide adenine dinucleotide-dependent deacetylase sirtuin-1 (SIRT1)/forkhead box O3 (FOXO3a) signaling is critical for maintaining neuronal function and regulation of the apoptotic pathway. In the present study, we designed in vitro and in vivo models to investigate the potential effects of lidocaine and DEX on SIRT1 and FOXO3a and to verify whether SIRT1/FOXO3a-mediated regulation of apoptosis is involved in DEX-induced neuroprotective effects against lidocaine. We found that in both PC12 cells and brains of mice, lidocaine decreased SIRT1 level through promoting the degradation of SIRT1 protein. Lidocaine also increased FOXO3a protein level and increased the acetylation of SIRT1 through inhibiting SIRT1. Upregulation of SIRT1 or downregulation of FOXO3a significantly inhibited lidocaine-induced changes in both cell viability and apoptosis. DEX significantly inhibited the lidocaine-induced decrease of SIRT1 protein level and increase of FOXO3a protein level and acetylation of FOXO3a. Downregulation of SIRT1 or upregulation of FOXO3a suppressed DEX-induced neuroprotective effects against lidocaine. The data suggest that SIRT1/FOXO3a is a potential novel target for alleviating lidocaine-induced neurotoxicity and provide more theoretical support for the use of DEX as an effective adjunct to alleviate chronic neurotoxicity induced by lidocaine.
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Affiliation(s)
- L-N Zheng
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - F-Q Guo
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - Z-S Li
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - Z Wang
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - J-H Ma
- Department of Neurosurgery, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - T Wang
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - J-F Wei
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
| | - W-W Zhang
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Tai Yuan, Shanxi, China
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41
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Cao K, Dong YT, Xiang J, Xu Y, Li Y, Song H, Yu WF, Qi XL, Guan ZZ. The neuroprotective effects of SIRT1 in mice carrying the APP/PS1 double-transgenic mutation and in SH-SY5Y cells over-expressing human APP670/671 may involve elevated levels of α7 nicotinic acetylcholine receptors. Aging (Albany NY) 2020; 12:1792-1807. [PMID: 32003755 PMCID: PMC7053601 DOI: 10.18632/aging.102713] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/02/2020] [Indexed: 12/20/2022]
Abstract
The aim was to determine whether the neuroprotective effect of SIRT1 in Alzheimer’s disease (AD), due to inhibition of aggregation of the β-amyloid peptide (Aβ), involves activation of α7 nAChR. In present study, four-month-old APP/PS1 mice were administered resveratrol (RSV) or suramin once daily for two months, following which their spatial learning and memory were assessed using the Morris water maze test. Deposits of Aβ in vivo were detected by near-infrared imaging (NIRI) and confocal laser scanning. SH-SY5Y/APPswe cells were treated with RSV, suramin, U0126 or methyllycaconitine (MLA). Levels of proteins and mRNA were determined by Western blotting and qRT-PCR, respectively. The results show that activation of SIRT1 improved their spatial learning and memory and reduced the production and aggregation of Aβ in the hippocampus and cerebral cortex; whereas inhibition of SIRT1 had the opposite effects. In addition, activation of SIRT1 increased the levels of both α7 nAChR and αAPP in the brains these animals. Finally, activation of SIRT1 elevated the levels of pERK1/2, while inhibition of ERK1/2 counteracted the increase in α7 nAChR caused by RSV. These findings indicate that neuroprotection by SIRT1 may involve increasing levels of α7 nAChR through activation of the MAPK/ERK1/2 signaling pathway.
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Affiliation(s)
- Kun Cao
- Department of Pathology at Guizhou Medical University and Pathology Department in Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, P. R. of China
| | - Yang-Ting Dong
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Jie Xiang
- Department of Pathology at Guizhou Medical University and Pathology Department in Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, P. R. of China
| | - Yi Xu
- Department of Pathology at Guizhou Medical University and Pathology Department in Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, P. R. of China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Yi Li
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Hui Song
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Wen-Feng Yu
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Xiao-Lan Qi
- Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
| | - Zhi-Zhong Guan
- Department of Pathology at Guizhou Medical University and Pathology Department in Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, P. R. of China.,Key Laboratory of Endemic and Ethnic Diseases of the Ministry of Education of P. R. China (Guizhou Medical University), Guiyang, Guizhou, P. R. of China.,Key Laboratory of Medical Molecular Biology, Guiyang, Guizhou, P. R. of China
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Abstract
Nε-lysine acetylation was discovered more than half a century ago as a post-translational modification of histones and has been extensively studied in the context of transcription regulation. In the past decade, proteomic analyses have revealed that non-histone proteins are frequently acetylated and constitute a major portion of the acetylome in mammalian cells. Indeed, non-histone protein acetylation is involved in key cellular processes relevant to physiology and disease, such as gene transcription, DNA damage repair, cell division, signal transduction, protein folding, autophagy and metabolism. Acetylation affects protein functions through diverse mechanisms, including by regulating protein stability, enzymatic activity, subcellular localization and crosstalk with other post-translational modifications and by controlling protein-protein and protein-DNA interactions. In this Review, we discuss recent progress in our understanding of the scope, functional diversity and mechanisms of non-histone protein acetylation.
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Liu X, Yang R, Bai W, Xu X, Bi F, Zhu M, Dou X, Li H. Exploring the role of orexin B-sirtuin 1-HIF-1α in diabetes-mellitus induced vascular endothelial dysfunction and associated myocardial injury in rats. Life Sci 2019; 254:117041. [PMID: 31715188 DOI: 10.1016/j.lfs.2019.117041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/01/2019] [Accepted: 11/02/2019] [Indexed: 01/02/2023]
Abstract
AIM The present study explored the role and possible interrelationship between orexin B-sirtuin 1-HIF-1α signaling pathways in diabetes-mellitus induced vascular dysfunction and enhancement in myocardial injury. MATERIAL AND METHODS Streptozotocin (60 mg/kg) was employed to induce diabetes mellitus in male Wistar albino rats, which were kept for eight weeks. The vascular function was noted by assessing acetylcholine-induced relaxation in norepinephrine precontracted mesenteric arteries. The hearts were subjected to ischemia-reperfusion injury on the Langendorff apparatus. Myocardial injury was assessed by noting the release of CK-MB, cardiac troponin and measuring myocardial infarction. The levels of orexin B, sirtuin 1 and HIF-1α were measured. YNT-185 (orexin B type 2 receptor agonist), STR2104 (sirtuin 1 agonist) and EX527 (sirtuin 1 antagonist) were employed as pharmacological tools. RESULTS Diabetes led to significant development of vascular dysfunction and enhanced ischemia-reperfusion injury in isolated hearts. There was a significant decrease in the levels of orexin B, sirtuin 1 and HIF-1α in diabetic animals. Treatment with YNT-185 and/or STR2104 significantly attenuated the diabetes-induced increase in myocardial injury and vascular dysfunction. Co-administration of EX527 abolished the effects of YNT-185 suggesting orexin B-mediated effects may be through activation of sirtuin 1. Moreover, YNT-185-induced increase in the expression of sirtuin 1 and HIF-1α was also abolished in the presence of EX527. CONCLUSION Diabetes-induced significant decline in orexin B levels in the plasma along with a decrease in the expression of sirtuin 1 and HIF-1α in the heart following ischemia-reperfusion injury may possibly contribute in exacerbating the myocardial injury and vascular dysfunction.
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Affiliation(s)
- Xiaoyong Liu
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Rui Yang
- Forensic Medicine Institution, Kunming Medical University, Kunming, 650500, China.
| | - Wenwei Bai
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Xiang Xu
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Feng Bi
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Min Zhu
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Xingkui Dou
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
| | - Hu Li
- Department of Cardiovascular, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, China.
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Xu C, Liu CH, Zhang DL. MicroRNA-22 inhibition prevents doxorubicin-induced cardiotoxicity via upregulating SIRT1. Biochem Biophys Res Commun 2019; 521:485-491. [PMID: 31677784 DOI: 10.1016/j.bbrc.2019.10.140] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/19/2019] [Indexed: 01/09/2023]
Abstract
Oxidative stress and cardiomyocyte apoptosis contributed to the progression of doxorubicin (Dox)-induced cardiotoxicity. Recent studies identified microRNA-22 (miR-22) as a cardiac- and skeletal muscle-enriched microRNA that functioned as a key regulator in stress-induced cardiac injury. The present study aimed to investigate the role and possible mechanism of miR-22 on Dox-induced oxidative stress and cardiomyocyte apoptosis. Mice were exposed to reduplicative injections of Dox (i.p., 4 mg/kg) weekly for consecutive 4 weeks to generate Dox-induced cardiotoxicity. Herein, we found that miR-22 level was significantly increased in murine hearts subjected to chronic Dox treatment. MiR-22 inhibition attenuated oxidative stress and cardiomyocyte apoptosis in vivo and in vitro, thereby preventing Dox-induced cardiac dysfunction. Mechanistically, we observed that miR-22 directly bound to the 3'-UTR of Sirt1 and caused SIRT1 downregulation. Conversely, miR-22 antagomir upregulated SIRT1 expression and SIRT1 inhibitor abolished the beneficial effects of miR-22 antagomir. In conclusion, miR-22 inhibition prevented oxidative stress and cardiomyocyte apoptosis via upregulating SIRT1 and miR-22 might be a new target for treating Dox-induced cardiotoxicity.
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Affiliation(s)
- Can Xu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China
| | - Chang-Hui Liu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China
| | - Da-Li Zhang
- Department of Emergency, The First Affiliated Hospital of University of South China, Hengyang, Hunan, 421001, PR China.
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Abstract
The sirtuin family of nicotinamide adenine dinucleotide-dependent deacylases (SIRT1-7) are thought to be responsible, in large part, for the cardiometabolic benefits of lean diets and exercise and when upregulated can delay key aspects of aging. SIRT1, for example, protects against a decline in vascular endothelial function, metabolic syndrome, ischemia-reperfusion injury, obesity, and cardiomyopathy, and SIRT3 is protective against dyslipidemia and ischemia-reperfusion injury. With increasing age, however, nicotinamide adenine dinucleotide levels and sirtuin activity steadily decrease, and the decline is further exacerbated by obesity and sedentary lifestyles. Activation of sirtuins or nicotinamide adenine dinucleotide repletion induces angiogenesis, insulin sensitivity, and other health benefits in a wide range of age-related cardiovascular and metabolic disease models. Human clinical trials testing agents that activate SIRT1 or boost nicotinamide adenine dinucleotide levels are in progress and show promise in their ability to improve the health of cardiovascular and metabolic disease patients.
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Affiliation(s)
- Alice E Kane
- From the Department of Genetics, Harvard Medical School, Boston, MA (A.E.K., D.A.S.)
| | - David A Sinclair
- From the Department of Genetics, Harvard Medical School, Boston, MA (A.E.K., D.A.S.).,Department of Pharmacology, The University of New South Wales, Sydney, Australia (D.A.S.)
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46
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Lysine acetyltransferases and lysine deacetylases as targets for cardiovascular disease. Nat Rev Cardiol 2019; 17:96-115. [DOI: 10.1038/s41569-019-0235-9] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/26/2019] [Indexed: 12/28/2022]
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47
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Cheng B, Du Y, Wen Y, Zhao Y, He A, Ding M, Fan Q, Li P, Liu L, Liang X, Guo X, Zhang F, Ma X. Integrative analysis of genome-wide association study and chromosomal enhancer maps identified brain region related pathways associated with ADHD. Compr Psychiatry 2019; 88:65-69. [PMID: 30529763 DOI: 10.1016/j.comppsych.2018.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 10/24/2018] [Accepted: 11/14/2018] [Indexed: 12/17/2022] Open
Abstract
Attention deficit/hyperactivity disorder (ADHD) is among the most common childhood onset psychiatric behavioral disorders, and the pathogenesis of ADHD is still unclear. Utilizing the latest genome wide association studies (GWAS) data and enhancer map, we explored the brain region related biological pathways associated with ADHD. The GWAS summary data of ADHD was driven from a published study, involving 20,183 ADHD cases and 35,191 healthy controls. The brain-related enhancer map was collected from ENCODE and Roadmap Epigenomics (ENCODE + Roadmap) including 489,581 enhancers. Firstly, the chromosomal enhancer maps of four brain regions were aligned with the ADHD GWAS summary data in order to obtain enhancer SNPs. Then the significant enhancers SNPs were subjected to the gene set enrichment analysis (GSEA) for identifying ADHD associated gene sets. A total of 866 pathways and 4 brain tissues were analyzed in this study. We detected several candidate genes for ADHD, such as AHI1, ALG2 and DNM1. We also detected several candidate biological pathways associated with ADHD, such as Reactome SEMA4D in semaphorin signaling and Reactome NCAM1 interactions. Our findings may provide a novel insight into the complex genetic mechanism of ADHD.
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Affiliation(s)
- Bolun Cheng
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Yanan Du
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Yan Wen
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Yan Zhao
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Awen He
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Miao Ding
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Qianrui Fan
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Ping Li
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Li Liu
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Xiao Liang
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Xiong Guo
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China
| | - Feng Zhang
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China.
| | - Xiancang Ma
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, PR China.
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48
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Differences in Functional Expression of Connexin43 and Na V1.5 by Pan- and Class-Selective Histone Deacetylase Inhibition in Heart. Int J Mol Sci 2018; 19:ijms19082288. [PMID: 30081552 PMCID: PMC6121244 DOI: 10.3390/ijms19082288] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/22/2022] Open
Abstract
Class-selective histone deacetylase (HDAC) inhibitors were designed to improve safety profiles and therapeutic effectiveness in the treatment of multiple cancers relative to pan-HDAC inhibitors. However, the underlying mechanisms for their therapeutic and cardiotoxic potentials remain poorly understood. Cardiac sodium currents (INa) and gap junction conductance (gj) were measured by whole cell patch clamp techniques on primary cultures of neonatal cardiomyocytes. Cardiac NaV1.5 sodium channel and connexin43 (Cx43) gap junction protein levels were assessed by Western blot analyses. Panobinostat produced concentration-dependent reductions in ventricular gj, peak INa density, and NaV1.5 protein expression levels. Membrane voltage (Vm)-dependent activation of INa was shifted by +3 to 6 mV with no effect on inactivation. Entinostat (1 μM) did not affect ventricular gj, peak INa density, or INa activation. However, the INa half-inactivation voltage (V½) was shifted by −3.5 mV. Ricolinostat had only minor effects on ventricular gj and INa properties, though INa activation was shifted by −4 mV. Cx43 and NaV1.5 protein expression levels were not altered by class-selective HDAC inhibitors. The lack of effects of class-selective HDAC inhibitors on ventricular gj and INa may help explain the improved cardiac safety profile of entinostat and ricolinostat.
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49
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Cheng XW, Narisawa M, Jin X, Murohara T, Kuzuya M. Sirtuin 1 as a potential therapeutic target in pulmonary artery hypertension. J Hypertens 2018; 36:1032-1035. [PMID: 29578961 DOI: 10.1097/hjh.0000000000001694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xian Wu Cheng
- Department of Cardiology and Heart Center, Yanbian University Hospital, Yanji, Jilin Province, China.,Institute of Innovation for the Future Society.,Department of Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Department of Internal Medicine, Kyung Hee University, Seoul, South Korea
| | - Megumi Narisawa
- Department of Cardiology, Tajimikenlitsu General Hospital, Tajimi, Gifu Prefecture
| | - Xiongjie Jin
- Department of Cardiology and Heart Center, Yanbian University Hospital, Yanji, Jilin Province, China
| | | | - Masafumi Kuzuya
- Institute of Innovation for the Future Society.,Department of Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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50
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D'Onofrio N, Servillo L, Balestrieri ML. SIRT1 and SIRT6 Signaling Pathways in Cardiovascular Disease Protection. Antioxid Redox Signal 2018; 28:711-732. [PMID: 28661724 PMCID: PMC5824538 DOI: 10.1089/ars.2017.7178] [Citation(s) in RCA: 251] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Oxidative stress represents the common hallmark of pathological conditions associated with cardiovascular disease (CVD), including atherosclerosis, heart failure, hypertension, aging, diabetes, and other vascular system-related diseases. The sirtuin (SIRT) family, comprising seven proteins (SIRT1-SIRT7) sharing a highly conserved nicotinamide adenine dinucleotide (NAD+)-binding catalytic domain, attracted a great attention for the past few years as stress adaptor and epigenetic enzymes involved in the cellular events controlling aging-related disorder, cancer, and CVD. Recent Advances: Among sirtuins, SIRT1 and SIRT6 are the best characterized for their protective roles against inflammation, vascular aging, heart disease, and atherosclerotic plaque development. This latest role has been only recently unveiled for SIRT6. Of interest, in recent years, complex signaling networks controlled by SIRT1 and SIRT6 common to stress resistance, vascular aging, and CVD have emerged. CRITICAL ISSUES We provide a comprehensive overview of recent developments on the molecular signaling pathways controlled by SIRT1 and SIRT6, two post-translational modifiers proven to be valuable tools to dampen inflammation and oxidative stress at the cardiovascular level. FUTURE DIRECTIONS A deeper understanding of the epigenetic mechanisms through which SIRT1 and SIRT6 act in the signalings responsible for onset and development CVD is a prime scientific endeavor of the upcoming years. Multiple "omic" technologies will have widespread implications in understanding such mechanisms, speeding up the achievement of selective and efficient pharmacological modulation of sirtuins for future applications in the prevention and treatment of CVD. Antioxid. Redox Signal. 28, 711-732.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Maria Luisa Balestrieri
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
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