1
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Rahunen R, Tulppo M, Rinne V, Lepojärvi S, Perkiömäki JS, Huikuri HV, Ukkola O, Junttila J, Hukkanen J. Liver X Receptor Agonist 4β-Hydroxycholesterol as a Prognostic Factor in Coronary Artery Disease. J Am Heart Assoc 2024; 13:e031824. [PMID: 38390795 PMCID: PMC10944077 DOI: 10.1161/jaha.123.031824] [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: 09/15/2023] [Accepted: 01/05/2024] [Indexed: 02/24/2024]
Abstract
BACKGROUND Regardless of progress in treatment of coronary artery disease (CAD), there is still a significant residual risk of death in patients with CAD, highlighting the need for additional risk stratification markers. Our previous study provided evidence for a novel blood pressure-regulating mechanism involving 4β-hydroxycholesterol (4βHC), an agonist for liver X receptors, as a hypotensive factor. The aim was to determine the role of 4βHC as a prognostic factor in CAD. METHODS AND RESULTS The ARTEMIS (Innovation to Reduce Cardiovascular Complications of Diabetes at the Intersection) cohort consists of 1946 patients with CAD. Men and women were analyzed separately in quartiles according to plasma 4βHC. Basic characteristics, medications, ECG, and echocardiography parameters as well as mortality rate were analyzed. At baseline, subjects with a beneficial cardiovascular profile, as assessed with traditional markers such as body mass index, exercise capacity, prevalence of diabetes, and use of antihypertensives, had the highest plasma 4βHC concentrations. However, in men, high plasma 4βHC was associated with all-cause death, cardiac death, and especially sudden cardiac death (SCD) in a median follow-up of 8.8 years. Univariate and comprehensively adjusted hazard ratios for SCD in the highest quartile were 3.76 (95% CI, 1.6-8.7; P=0.002) and 4.18 (95% CI, 1.5-11.4; P=0.005), respectively. In contrast, the association of cardiac death and SCD in women showed the lowest risk in the highest 4βHC quartile. CONCLUSIONS High plasma 4βHC concentration was associated with death and especially SCD in men, while an inverse association was detected in women. Our results suggest 4βHC as a novel sex-specific risk marker of cardiac death and especially SCD in chronic CAD. REGISTRATION INFORMATION clinicaltrials.gov. Identifier NCT01426685.
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Affiliation(s)
- Roosa Rahunen
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Biocenter OuluUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Mikko Tulppo
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | | | - Samuli Lepojärvi
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Juha S. Perkiömäki
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Heikki V. Huikuri
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Olavi Ukkola
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Juhani Junttila
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Biocenter OuluUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
| | - Janne Hukkanen
- Research Unit of Biomedicine and Internal MedicineUniversity of OuluOuluFinland
- Biocenter OuluUniversity of OuluOuluFinland
- Medical Research Center OuluOulu University Hospital and University of OuluOuluFinland
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2
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Vacondio D, Nogueira Pinto H, Coenen L, Mulder IA, Fontijn R, van Het Hof B, Fung WK, Jongejan A, Kooij G, Zelcer N, Rozemuller AJ, de Vries HE, de Wit NM. Liver X receptor alpha ensures blood-brain barrier function by suppressing SNAI2. Cell Death Dis 2023; 14:781. [PMID: 38016947 PMCID: PMC10684660 DOI: 10.1038/s41419-023-06316-8] [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: 07/04/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/30/2023]
Abstract
In Alzheimer's disease (AD) more than 50% of the patients are affected by capillary cerebral amyloid-angiopathy (capCAA), which is characterized by localized hypoxia, neuro-inflammation and loss of blood-brain barrier (BBB) function. Moreover, AD patients with or without capCAA display increased vessel number, indicating a reactivation of the angiogenic program. The molecular mechanism(s) responsible for BBB dysfunction and angiogenesis in capCAA is still unclear, preventing a full understanding of disease pathophysiology. The Liver X receptor (LXR) family, consisting of LXRα and LXRβ, was reported to inhibit angiogenesis and particularly LXRα was shown to secure BBB stability, suggesting a major role in vascular function. In this study, we unravel the regulatory mechanism exerted by LXRα to preserve BBB integrity in human brain endothelial cells (BECs) and investigate its role during pathological conditions. We report that LXRα ensures BECs identity via constitutive inhibition of the transcription factor SNAI2. Accordingly, deletion of brain endothelial LXRα is associated with impaired DLL4-NOTCH signalling, a critical signalling pathway involved in vessel sprouting. A similar response was observed when BECs were exposed to hypoxia, with concomitant LXRα decrease and SNAI2 increase. In support of our cell-based observations, we report a general increase in vascular SNAI2 in the occipital cortex of AD patients with and without capCAA. Importantly, SNAI2 strongly associated with vascular amyloid-beta deposition and angiopoietin-like 4, a marker for hypoxia. In hypoxic capCAA vessels, the expression of LXRα may decrease leading to an increased expression of SNAI2, and consequently BECs de-differentiation and sprouting. Our findings indicate that LXRα is essential for BECs identity, thereby securing BBB stability and preventing aberrant angiogenesis. These results uncover a novel molecular pathway essential for BBB identity and vascular homeostasis providing new insights on the vascular pathology affecting AD patients.
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Affiliation(s)
- D Vacondio
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - H Nogueira Pinto
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - L Coenen
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
- Biomedical Primate Research Centre, Department of Neurobiology and Aging, Rijswijk, the Netherlands
| | - I A Mulder
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Department of Biomedical Engineering and Physics, Meibergdreef 9, Amsterdam, the Netherlands
| | - R Fontijn
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - B van Het Hof
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - W K Fung
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - A Jongejan
- Amsterdam UMC location University of Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam Public Health, Methodology, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
| | - G Kooij
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - N Zelcer
- Amsterdam UMC location University of Amsterdam Department of Medical Biochemistry, Meibergdreef 9, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Cardiovascular Sciences and Gastroenterology and Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - A J Rozemuller
- Amsterdam Neuroscience, Amsterdam, the Netherlands
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Pathology, De Boelelaan 1117, Amsterdam, the Netherlands
| | - H E de Vries
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands
- Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - N M de Wit
- Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam, the Netherlands.
- Amsterdam Neuroscience, Amsterdam, the Netherlands.
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3
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Lovell JP, Bermea K, Yu J, Rousseau S, Cohen CD, Bhalodia A, Zita MD, Head RD, Blumenthal RS, Alharethi R, Damp J, Boehmer J, Alexis J, McNamara DM, Sharma G, Adamo L. Serum Proteomic Analysis of Peripartum Cardiomyopathy Reveals Distinctive Dysregulation of Inflammatory and Cholesterol Metabolism Pathways. JACC. HEART FAILURE 2023; 11:1231-1242. [PMID: 37542511 DOI: 10.1016/j.jchf.2023.05.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND The pathophysiology of peripartum cardiomyopathy (PPCM) and its distinctive biological features remain incompletely understood. High-throughput serum proteomic profiling, a powerful tool to gain insights into the pathophysiology of diseases at a systems biology level, has never been used to investigate PPCM relative to nonischemic cardiomyopathy. OBJECTIVES The aim of this study was to characterize the pathophysiology of PPCM through serum proteomic analysis. METHODS Aptamer-based proteomic analysis (SomaScan 7K) was performed on serum samples from women with PPCM (n = 67), women with nonischemic nonperipartum cardiomyopathy (NPCM) (n = 31), and age-matched healthy peripartum and nonperipartum women (n = 10 each). Serum samples were obtained from the IPAC (Investigation of Pregnancy-Associated Cardiomyopathy) and IMAC2 (Intervention in Myocarditis and Acute Cardiomyopathy) studies. RESULTS Principal component analysis revealed unique clustering of each patient group (P for difference <0.001). Biological pathway analyses of differentially measured proteins in PPCM relative to NPCM, before and after normalization to pertinent healthy controls, highlighted specific dysregulation of inflammatory pathways in PPCM, including the upregulation of the cholesterol metabolism-related anti-inflammatory pathway liver-X receptor/retinoid-X receptor (LXR/RXR) (P < 0.01, Z-score 1.9-2.1). Cardiac recovery by 12 months in PPCM was associated with the downregulation of pro-inflammatory pathways and the upregulation of LXR/RXR, and an additional RXR-dependent pathway involved in the regulation of inflammation and metabolism, peroxisome proliferator-activated receptor α/RXRα signaling. CONCLUSIONS Serum proteomic profiling of PPCM relative to NPCM and healthy controls indicated that PPCM is a distinct disease entity characterized by the unique dysregulation of inflammation-related pathways and cholesterol metabolism-related anti-inflammatory pathways. These findings provide insight into the pathophysiology of PPCM and point to novel potential therapeutic targets.
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Affiliation(s)
- Jana P Lovell
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kevin Bermea
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jinsheng Yu
- Department of Genetics, McDonnell Genome Institute, Washington University, St. Louis, Missouri, USA
| | - Sylvie Rousseau
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Charles D Cohen
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Aashik Bhalodia
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Marcelle Dina Zita
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Richard D Head
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Roger S Blumenthal
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | | | - Julie Damp
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - John Boehmer
- Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Jeffrey Alexis
- Division of Cardiology, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Dennis M McNamara
- Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Garima Sharma
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. https://twitter.com/GarimaVSharmaMD
| | - Luigi Adamo
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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4
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Yang Y, Lei W, Qian L, Zhang S, Yang W, Lu C, Song Y, Liang Z, Deng C, Chen Y, Tian Y, Zhao H. Activation of NR1H3 signaling pathways by psoralidin attenuates septic myocardial injury. Free Radic Biol Med 2023; 204:8-19. [PMID: 37085126 DOI: 10.1016/j.freeradbiomed.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023]
Abstract
Sepsis can cause various organ dysfunction, which heart failure may be associated with significant mortality. Psoralidin (PSO), one of the main bioactive compounds from the seeds of Psoralea corylifolia L, exhibits remarkable protective effects in diseases, including cancer, osteoporosis, and depression. Recently, NR1H3 is one of the emerging nuclear receptors targets for the various drugs. This study first reported the role of PSO in septic myocardial injury, which was mainly attributed to the NR1H3-dependent manner. NR1H3 knockout mice subjected to cecal ligation and puncture (CLP) were used to investigate the involvement of NR1H3 in PSO protection evaluate. Our results showed that PSO prominently improved cardiac function, blood routine and blood biochemistry, attenuated inflammation, inhibited oxidative stress, improved mitochondrial function, regulated ERS, suppressed apoptosis, and increased NR1H3 and p-AMPK levels. However, NR1H3 knockout reversed the positive role of PSO in septic mice. Furthermore, activation of NR1H3 by T0901317 also increased the activity of AMPK and ACC in the HL-1 cardiomyocytes, indicating the regulatory relationship between NR1H3 and AMPK signaling. This study first demonstrated the beneficial effect of PSO in septic myocardial injury through activation of NR1H3/AMPK pathway.
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Affiliation(s)
- Yang Yang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Wangrui Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Lu Qian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Shaofei Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Wenwen Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Chenxi Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China
| | - Yanbin Song
- Department of Cardiology, Affiliated Hospital, Yan'an University, 43 North Street, Yan'an, China
| | - Zhenxing Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East, Zhengzhou, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, China
| | - Ying Chen
- Department of Hematology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, China
| | - Ye Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China; Department of Neurology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University. Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China.
| | - Huadong Zhao
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, China
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5
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Deng C, Liu Q, Zhao H, Qian L, Lei W, Yang W, Liang Z, Tian Y, Zhang S, Wang C, Chen Y, Yang Y. Activation of
NR1H3
attenuates the severity of septic myocardial injury by inhibiting
NLRP3
inflammasome. Bioeng Transl Med 2023; 8:e10517. [DOI: 10.1002/btm2.10517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 04/08/2023] Open
Affiliation(s)
- Chao Deng
- Department of Cardiovascular Surgery The First Affiliated Hospital of Xi'an Jiaotong University 277 Yanta West Road Xi'an 710061 China
| | - Qiong Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Huadong Zhao
- Department of General Surgery Tangdu Hospital, The Airforce Medical University 1 Xinsi Road Xi'an 710038 China
| | - Lu Qian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Wangrui Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Wenwen Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Zhenxing Liang
- Department of Cardiothoracic Surgery The First Affiliated Hospital of Zhengzhou University 1 Jianshe East Zhengzhou 450052 China
| | - Ye Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Shaofei Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Changyu Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
| | - Ying Chen
- Department of Hematology The First Affiliated Hospital of Xi'an Jiaotong University 277 Yanta West Road Xi'an 710061 China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine Northwest University 229 Taibai North Road Xi'an 710069 China
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Faculty of Life Sciences and Medicine, Northwest University 10 Fengcheng Three Road Xi'an 710021 China
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6
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Javaheri A, Diab A, Zhao L, Qian C, Cohen JB, Zamani P, Kumar A, Wang Z, Ebert C, Maranville J, Kvikstad E, Basso M, van Empel V, Richards AM, Doughty R, Rietzschell E, Kammerhoff K, Gogain J, Schafer P, Seiffert DA, Gordon DA, Ramirez-Valle F, Mann DL, Cappola TP, Chirinos JA. Proteomic Analysis of Effects of Spironolactone in Heart Failure With Preserved Ejection Fraction. Circ Heart Fail 2022; 15:e009693. [PMID: 36126144 PMCID: PMC9504263 DOI: 10.1161/circheartfailure.121.009693] [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] [Indexed: 11/16/2022]
Abstract
BACKGROUND The TOPCAT trial (Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist Trial) suggested clinical benefits of spironolactone treatment among patients with heart failure with preserved ejection fraction enrolled in the Americas. However, a comprehensive assessment of biologic pathways impacted by spironolactone therapy in heart failure with preserved ejection fraction has not been performed. METHODS We conducted aptamer-based proteomic analysis utilizing 5284 modified aptamers to 4928 unique proteins on plasma samples from TOPCAT participants from the Americas (n=164 subjects with paired samples at baseline and 1 year) to identify proteins and pathways impacted by spironolactone therapy in heart failure with preserved ejection fraction. Mean percentage change from baseline was calculated for each protein. Additionally, we conducted pathway analysis of proteins altered by spironolactone. RESULTS Spironolactone therapy was associated with proteome-wide significant changes in 7 proteins. Among these, CARD18 (caspase recruitment domain-containing protein 18), PKD2 (polycystin 2), and PSG2 (pregnancy-specific glycoprotein 2) were upregulated, whereas HGF (hepatic growth factor), PLTP (phospholipid transfer protein), IGF2R (insulin growth factor 2 receptor), and SWP70 (switch-associated protein 70) were downregulated. CARD18, a caspase-1 inhibitor, was the most upregulated protein by spironolactone (-0.5% with placebo versus +66.5% with spironolactone, P<0.0001). The top canonical pathways that were significantly associated with spironolactone were apelin signaling, stellate cell activation, glycoprotein 6 signaling, atherosclerosis signaling, liver X receptor activation, and farnesoid X receptor activation. Among the top pathways, collagens were a consistent theme that increased in patients receiving placebo but decreased in patients randomized to spironolactone. CONCLUSIONS Proteomic analysis in the TOPCAT trial revealed proteins and pathways altered by spironolactone, including the caspase inhibitor CARD18 and multiple pathways that involved collagens. In addition to effects on fibrosis, our studies suggest potential antiapoptotic effects of spironolactone in heart failure with preserved ejection fraction, a hypothesis that merits further exploration.
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Affiliation(s)
- Ali Javaheri
- Washington University School of Medicine, St. Louis, MO
| | - Ahmed Diab
- Washington University School of Medicine, St. Louis, MO
| | - Lei Zhao
- Bristol Myers Squibb Company, Lawrenceville, NJ
| | - Chenao Qian
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
| | - Jordana B. Cohen
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
| | - Payman Zamani
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
| | - Anupam Kumar
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
| | | | | | | | | | | | - Vanessa van Empel
- Department of Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - A. Mark Richards
- Cardiovascular Research Institute, National University of Singapore, Singapore
- Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Rob Doughty
- Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Ernst Rietzschell
- Department of Cardiovascular Diseases, Ghent University Hospital, Ghent, Belgium
| | | | | | | | | | | | | | | | - Thomas P. Cappola
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
| | - Julio A. Chirinos
- Perelman School of Medicine. University of Pennsylvania School of Medicine/Hospital of the University of Pennsylvania. Philadelphia, PA
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7
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Namba N, Noguchi-Yachide T, Matsumoto Y, Hashimoto Y, Fujii S. Design, synthesis and structure-activity relationship of 4-(1,1,1,3,3,3-hexafluoro-2-hydroxyisoprop-2-yl)phenylsilane derivatives as liver X receptor agonists. Bioorg Med Chem 2022; 66:116792. [PMID: 35576658 DOI: 10.1016/j.bmc.2022.116792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/26/2022]
Abstract
Liver X receptor (LXR) α and LXRβ are nuclear receptors playing key roles in lipid metabolism, and LXR ligands are attractive drug candidates for metabolic disorders. Here we report the structural development of 4-(1,1,1,3,3,3-hexafluoro-2-hydroxyprop-2-yl)phenylsilane derivatives as LXR agonists bearing silyl functionalities as the hydrophobic pharmacophore, based on the structure of the known sulfonamide LXR agonist T0901317. Most of the synthesized compounds exhibit agonistic activity toward LXRs, but the LXR subtype-selectivity differs depending upon the substituents on the silicon atom. Among them, tri(n-propyl) derivative 12 shows potent LXR-agonistic activity with moderate α subtype-selectivity, while dimethylphenylsilyl derivative 19 shows modest β-selectivity. These results indicate that silanes can serve as an alternative to the sulfonamide moiety of LXR agonists, and are promising structural options for the development of novel subtype-selective LXR agonists.
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Affiliation(s)
- Nao Namba
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tomomi Noguchi-Yachide
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Yuichiro Matsumoto
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Yuichi Hashimoto
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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8
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LXR activation ameliorates high glucose stress-induced aberrant mitochondrial dynamics via downregulation of Calpain1 expression in H9c2 cardiomyoblasts. Biochem Biophys Res Commun 2022; 614:145-152. [PMID: 35597151 DOI: 10.1016/j.bbrc.2022.05.025] [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: 03/18/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 11/22/2022]
Abstract
Liver-X-receptor (LXR) has previously been shown to exert a cardioprotective effect against the development of diabetic cardiomyopathy (DCM) associated with a reduction in mitochondrial dysfunction. However, the underlying mechanism by which LXR activation attenuates the structural and functional mitochondrial impairments caused by high glucose (HG) stress remains unclear. We demonstrate here that LXR activation inhibits HG stress-induced mitochondrial dysfunction and ameliorates aberrant mitochondrial dynamics. Furthermore, LXR activation regulates mitochondrial dynamics by inhibiting HG stress-induced upregulation of Calpain1 expression. These data indicate that amelioration of Calpain1-mediated aberrant mitochondrial dynamics may be at least part of the mechanism underlying the cardioprotective effects of LXR against HG stress. Therefore, LXR is a potentially attractive molecular target for treating cardiac mitochondrial dysfunction in patients with diabetes.
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9
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Zhang S, Rao S, Yang M, Ma C, Hong F, Yang S. Role of Mitochondrial Pathways in Cell Apoptosis during He-Patic Ischemia/Reperfusion Injury. Int J Mol Sci 2022; 23:ijms23042357. [PMID: 35216473 PMCID: PMC8877300 DOI: 10.3390/ijms23042357] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 12/15/2022] Open
Abstract
Hepatic ischemia-reperfusion injury is a major cause of post-operative hepatic dysfunction and liver failure after transplantation. Mitochondrial pathways can be either beneficial or detrimental to hepatic cell apoptosis during hepatic ischemia/reperfusion injury, depending on multiple factors. Hepatic ischemia/reperfusion injury may be induced by opened mitochondrial permeability transition pore, released apoptosis-related proteins, up-regulated B-cell lymphoma-2 gene family proteins, unbalanced mitochondrial dynamics, and endoplasmic reticulum stress, which are integral parts of mitochondrial pathways. In this review, we discuss the role of mitochondrial pathways in apoptosis that account for the most deleterious effect of hepatic ischemia/reperfusion injury.
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Affiliation(s)
- Sen Zhang
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Sijing Rao
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Meiwen Yang
- Department of Surgery, Fuzhou Medical College, Nanchang University, Fuzhou 344099, China;
| | - Chen Ma
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Fengfang Hong
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Correspondence: (F.H.); or (S.Y.)
| | - Shulong Yang
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
- Department of Physiology, Fuzhou Medical College, Nanchang University, Fuzhou 344099, China
- Correspondence: (F.H.); or (S.Y.)
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10
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The Role of CD147 in Pathological Cardiac Hypertrophy Is Regulated by Glycosylation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6603296. [PMID: 35096272 PMCID: PMC8794662 DOI: 10.1155/2022/6603296] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/27/2021] [Accepted: 11/29/2021] [Indexed: 01/21/2023]
Abstract
CD147, also known as EMMPRIN or basigin, is a transmembrane glycoprotein receptor that activates matrix metalloproteinases and promotes inflammation. CD147 function is regulated by posttranslational modifications of which glycosylation has attracted the most attention. In this study, we demonstrated that glycosylated CD147 was the dominant form in heart tissue, and its levels were markedly elevated in response to transverse aortic constriction (TAC). Adeno-associated virus 9-mediated, cardiac-specific overexpression of wild-type CD147 in mice significantly promoted pressure overload-induced pathological cardiac remodeling accompanied by augmented oxidative stress and ferroptosis. By contrast, mutations of CD147 glycosylation sites notably weakened these detrimental effects of CD147. Mechanistically, CD147 exacerbated TAC-induced pathological cardiac remodeling via direct binding with the adaptor molecule TRAF2 and subsequent activation of TAK1 signalling, which was dependent on glycosylation of CD147. Collectively, our findings provide the first evidence that CD147 promoted pathological cardiac remodeling and dysfunction in a glycosylation-dependent manner through binding the adaptor protein TRAF2 and activating the downstream TRAF2-TAK1 signalling pathway. Thus, glycosylation of CD147 may be a potent interventional target for heart failure treatment.
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11
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Jiang W, Chen G, Pu J. The transcription factor interferon regulatory factor-1 is an endogenous mediator of myocardial ischemia reperfusion injury. Cell Biol Int 2022; 46:63-72. [PMID: 34658101 DOI: 10.1002/cbin.11713] [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] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/05/2021] [Accepted: 06/17/2021] [Indexed: 11/10/2022]
Abstract
Myocardial ischemia reperfusion (MIR) injury negatively affects the prognosis of acute myocardial infarction (AMI), while effective suppression of MIR injury remains a largely unmet clinical need. Interferon regulatory factors (IRF) are key players in chronic cardiac disorders such as cardiac remodeling. However, their roles in acute MIR injury remain largely unknown. In the current study, microarray data indicated that IRF1 expression was consistently changed in the human ischemic heart and ischemic reperfused mouse heart. Western blot analysis confirmed the expression alterations of IRF1 in ischemic reperfused mouse heart. Cardiac-specific IRF1 knockdown significantly decreased infarct size, improved cardiac function, and suppressed myocardial apoptosis after MIR injury. Conversely, cardiac-specific IRF1 overexpression significantly promoted MIR injury. Further investigation revealed that IRF1 transcriptionally regulated the expression of inducible nitric oxide synthase (iNOS), and augmented oxidative stress. Taken together, we presented the first direct evidence that IRF1 served as a mediator of MIR injury, and IRF1 may represent a potential therapeutic target for alleviating MIR injury.
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Affiliation(s)
- Wenlong Jiang
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Guoxiong Chen
- Department of Cardiology, Zhoushan Hospital, Zhejiang, China
| | - Jun Pu
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
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12
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The nuclear receptor co-repressor 1 is a novel cardioprotective factor against acute myocardial ischemia-reperfusion injury. J Mol Cell Cardiol 2022; 166:50-62. [DOI: 10.1016/j.yjmcc.2022.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 01/01/2022] [Accepted: 01/18/2022] [Indexed: 12/31/2022]
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13
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Ma L, Shi H, Li Y, Gao W, Guo J, Zhu J, Dong Z, Sun A, Zou Y, Ge J. Hypertrophic preconditioning attenuates myocardial ischemia/reperfusion injury through the deacetylation of isocitrate dehydrogenase 2. Sci Bull (Beijing) 2021; 66:2099-2114. [PMID: 36654268 DOI: 10.1016/j.scib.2021.04.008] [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: 07/02/2020] [Revised: 08/31/2020] [Accepted: 03/23/2021] [Indexed: 02/03/2023]
Abstract
To test the hypothesis that transient nonischemic stimulation of hypertrophy would render the heart resistant to subsequent ischemic stress, short-term transverse aortic constriction (TAC) was performed in mice and then withdrawn for several days by aortic debanding, followed by subsequent myocardial exposure to ischemia/reperfusion (I/R). Following I/R injury, the myocardial infarct size and apoptosis were markedly reduced, and contractile function was significantly improved in the TAC preconditioning group compared with the control group. Mechanistically, hypertrophic preconditioning remarkably alleviated I/R-induced oxidative stress, as evidenced by the increased reduced nicotinamide adenine dinucleotide phosphate (NADPH)/nicotinamide adenine dinucleotide phosphate (NADP) ratio, increase in the reduced glutathione (GSH)/oxidized glutathione (GSSH) ratio, and reduced mitochondrial reactive oxygen species (ROS) production. Moreover, TAC preconditioning inhibited caspase-3 activation and mitigated the mitochondrial impairment by deacetylating isocitrate dehydrogenase 2 (IDH2) via a sirtuin 3 (SIRT3)-dependent mechanism. In addition, the expression of a genetic deacetylation mimetic IDH2 mutant (IDH2 K413R) in cardiomyocytes, which increased IDH2 enzymatic activity and decreased mitochondrial ROS production, and ameliorated I/R injury, whereas the expression of a genetic acetylation mimetic (IDH2 K413Q) in cardiomyocytes abolished these protective effects of hypertrophic preconditioning. Furthermore, both the activity and expression of the SIRT3 protein were markedly increased in preconditioned mice exposed to I/R. Treatment with an adenovirus encoding SIRT3 partially emulated the actions of hypertrophic preconditioning, whereas genetic ablation of SIRT3 in mice blocked the cardioprotective effects of hypertrophic preconditioning. The present study identifies hypertrophic preconditioning as a novel endogenous self-defensive and cardioprotective strategy for cardiac I/R injury that induces IDH2 deacetylation through a SIRT3-dependent mechanism. A therapeutic strategy targeting IDH2 may be a promising treatment for cardiac ischemic injury.
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Affiliation(s)
- Leilei Ma
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China
| | - Hongtao Shi
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China
| | - Yang Li
- Institute of Biomedical Science, Fudan University, Shanghai 200032, China
| | - Wei Gao
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China
| | - Junjie Guo
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao 266101, China; Qingdao Municipal Key Laboratory of Hypertension (Key Laboratory of Cardiovascular Medicine), Qingdao 266101, China
| | - Jianbing Zhu
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Jiangxi Hypertension Research Institute, Nanchang 330006, China
| | - Zheng Dong
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China
| | - Aijun Sun
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China; Institute of Biomedical Science, Fudan University, Shanghai 200032, China.
| | - Yunzeng Zou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China; Institute of Biomedical Science, Fudan University, Shanghai 200032, China.
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai 200032, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China; Institute of Biomedical Science, Fudan University, Shanghai 200032, China.
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14
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Paredes A, Santos-Clemente R, Ricote M. Untangling the Cooperative Role of Nuclear Receptors in Cardiovascular Physiology and Disease. Int J Mol Sci 2021; 22:ijms22157775. [PMID: 34360540 PMCID: PMC8346021 DOI: 10.3390/ijms22157775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/13/2021] [Accepted: 07/16/2021] [Indexed: 12/12/2022] Open
Abstract
The heart is the first organ to acquire its physiological function during development, enabling it to supply the organism with oxygen and nutrients. Given this early commitment, cardiomyocytes were traditionally considered transcriptionally stable cells fully committed to contractile function. However, growing evidence suggests that the maintenance of cardiac function in health and disease depends on transcriptional and epigenetic regulation. Several studies have revealed that the complex transcriptional alterations underlying cardiovascular disease (CVD) manifestations such as myocardial infarction and hypertrophy is mediated by cardiac retinoid X receptors (RXR) and their partners. RXRs are members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors and drive essential biological processes such as ion handling, mitochondrial biogenesis, and glucose and lipid metabolism. RXRs are thus attractive molecular targets for the development of effective pharmacological strategies for CVD treatment and prevention. In this review, we summarize current knowledge of RXR partnership biology in cardiac homeostasis and disease, providing an up-to-date view of the molecular mechanisms and cellular pathways that sustain cardiomyocyte physiology.
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15
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Mai CT, Zheng DC, Li XZ, Zhou H, Xie Y. Liver X receptors conserve the therapeutic target potential for the treatment of rheumatoid arthritis. Pharmacol Res 2021; 170:105747. [PMID: 34186192 DOI: 10.1016/j.phrs.2021.105747] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 01/03/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic multi-system autoimmune disease with extremely complex pathogenesis. Significantly altered lipid paradox related to the inflammatory burden is reported in RA patients, inducing 50% higher cardiovascular risks. Recent studies have also demonstrated that lipid metabolism can regulate many functions of immune cells in which metabolic pathways have altered. The nuclear liver X receptors (LXRs), including LXRα and LXRβ, play a central role in regulating lipid homeostasis and inflammatory responses. Undoubtedly, LXRs have been considered as an attractive therapeutic target for the treatment of RA. However, there are some contradictory effects of LXRs agonists observed in previous animal studies where both pro-inflammatory role and anti-inflammatory role were revealed for LXRs activation in RA. Therefore, in addition to updating the knowledge of LXRs as the prominent regulators of lipid homeostasis, the purpose of this review is to summarize the effects of LXRs agonists in RA-associated immune cells, to explore the underlying reasons for the contradictory therapeutic effects of LXRs agonists observed in RA animal models, and to discuss future strategy for the treatment of RA with LXRs modulators.
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Affiliation(s)
- Chu-Tian Mai
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau; Faculty of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - De-Chong Zheng
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau; Faculty of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Xin-Zhi Li
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Hua Zhou
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau; Faculty of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Ying Xie
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau.
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16
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Xu Y, Wang B, Liu X, Deng Y, Zhu Y, Zhu F, Liang Y, Li H. Sp1 Targeted PARP1 Inhibition Protects Cardiomyocytes From Myocardial Ischemia-Reperfusion Injury via Downregulation of Autophagy. Front Cell Dev Biol 2021; 9:621906. [PMID: 34124031 PMCID: PMC8190009 DOI: 10.3389/fcell.2021.621906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Myocardial ischemia–reperfusion injury (MIRI), characterized by post-ischemic cardiomyocytes death and reperfusion myocardial damage, is a lethal yet unresolved complication in the treatment of acute myocardial infarction (AMI). Previous studies have demonstrated that poly(ADP-ribose) polymerase-1 (PARP1) participates in the progression of various cardiovascular diseases, and various reports have proved that PARP1 can be a therapeutic target in these diseases, but whether it plays a role in MIRI is still unknown. Therefore, in this study, we aimed to explore the role and mechanism of PARP1 in the development of MIRI. Firstly, we demonstrated that PARP1 was activated during MIRI-induced myocardial autophagy in vitro. Moreover, PARP1 inhibition protected cardiomyocytes from MIRI through the inhibition of autophagy. Next, we discovered that specificity protein1 (Sp1), as a transcription factor of PARP1, regulates its target gene PARP1 through binding to its target gene promoter during transcription. Furthermore, silencing Sp1 protected cardiomyocytes from MIRI via the inhibition of PARP1. Finally, the functions and mechanisms of PARP1 in the development of MIRI were also verified in vivo with SD rats model. Based on these findings, we concluded that PARP1 inhibition protects cardiomyocytes from MIRI through the inhibition of autophagy, which is targeted by Sp1 suppression. Therefore, the utilization of PARP1 exhibits great therapeutic potential for MIRI treatment in future.
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Affiliation(s)
- Yifeng Xu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Boqian Wang
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxiao Liu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yunfei Deng
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanqi Zhu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Zhu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yanyan Liang
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hongli Li
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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17
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Che X, Xiao Q, Song W, Zhang H, Sun B, Geng N, Tao Z, Shao Q, Pu J. Protective Functions of Liver X Receptor α in Established Vulnerable Plaques: Involvement of Regulating Endoplasmic Reticulum-Mediated Macrophage Apoptosis and Efferocytosis. J Am Heart Assoc 2021; 10:e018455. [PMID: 33969692 PMCID: PMC8200716 DOI: 10.1161/jaha.120.018455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Liver X receptor (LXR) belongs to the metabolic nuclear receptor superfamily, which plays a critical regulatory role in vascular physiology/pathology. However, effects of systemic LXR activation on established vulnerable plaques and the potential isotype‐specific role involved remain unclear. Methods and Results The 8‐week‐old male apolipoprotein E−/− mice went through carotid branch ligation and renal artery constriction, combined with a high‐fat diet. Plaques in the left carotid artery acquired vulnerable features 4 weeks later, confirmed by magnetic resonance imaging scans and histological analysis. From that time on, mice were injected intraperitoneally daily with PBS or GW3965 (10 mg/kg per day) for an additional 4 weeks. Treatment with LXR agonists reduced the lesion volume by 52.61%, compared with the vehicle group. More important, a profile of less intraplaque hemorrhage detection and necrotic core formation was found. These actions collectively attenuated the incidence of plaque rupture. Mechanistically, reduced lesional apoptosis, enhanced efferocytosis, and alleviated endoplasmic reticulum stress are involved in the process. Furthermore, genetic ablation of LXRα, but not LXRβ, blunted the protective effects of LXR on the endoplasmic reticulum stress–elicited C/EBP‐homologous protein pathway in peritoneal macrophages. In concert with the LXRα‐predominant role in vitro, activated LXR failed to stabilize vulnerable plaques and correct the acquired cellular anomalies in LXRα−/− apolipoprotein E−/− mice. Conclusions Our results revealed that LXRα mediates the capacity of LXR activation to stabilize vulnerable plaques and prevent plaque rupture via amelioration of macrophage endoplasmic reticulum stress, lesional apoptosis, and defective efferocytosis. These findings might expand the application scenarios of LXR therapeutics for atherosclerosis.
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Affiliation(s)
- Xinyu Che
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Qingqing Xiao
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Wei Song
- Cardiovascular Department of Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine Shanghai China
| | - Hengyuan Zhang
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Beibei Sun
- Department of Radiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Na Geng
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Zhenyu Tao
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Qin Shao
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
| | - Jun Pu
- Department of Cardiology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai China
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18
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Wan YW, Liu W, Feng MT, Pu J, Zhuang SW, He B, Liu X. LXRβ is involved in the control of platelet production from megakaryocytes. Blood Cells Mol Dis 2021; 89:102568. [PMID: 33862368 DOI: 10.1016/j.bcmd.2021.102568] [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: 01/12/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
Liver X receptor β (LXRβ), a nuclear receptor involved in important cellular processes such as cholesterol, glucose and fatty acid metabolism, was suggested to be involved in platelet aggregation but its detailed roles are not clear. In the present study, we evaluated the contribution of LXRβ to platelet functions and production. In the systemic collagen-epinephrine thrombosis mouse model, LXRβ-deficient mice showed increased area of blood clots compared with control wide-type littermates. The aggregation of LXRβ-deficient platelets in response to ADP was stronger than that of control mice platelets. More importantly, the number of platelets in blood of LXRβ-deficient mice was significantly higher than that of wild-type mice, especially for female mice. Knockdown of LXRβ expression in human megakaryoblastic Dami cells also enhanced cell polyploidization, formation of proplatelets and production of platelet-like particles. Increase in expression levels of proteins related to oxidative phosphorylation such as NADH:ubiquinone oxidoreductase core subunit V1 (Ndufv1) was observed in LXRβ-knockdown Dami cells. The levels of Ndufv1 in LXRβ-deficient mice platelets were also higher than that of wild-type mice. Taken together, our findings suggested LXRβ might participate in control of platelet production from megakaryocytes by regulating mitochondrial metabolism.
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Affiliation(s)
- Yu-Wei Wan
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wang Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mu-Ting Feng
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Shao-Wei Zhuang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China.
| | - Xuan Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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19
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Ma LL, Ding ZW, Yin PP, Wu J, Hu K, Sun AJ, Zou YZ, Ge JB. Hypertrophic preconditioning cardioprotection after myocardial ischaemia/reperfusion injury involves ALDH2-dependent metabolism modulation. Redox Biol 2021; 43:101960. [PMID: 33910156 PMCID: PMC8099646 DOI: 10.1016/j.redox.2021.101960] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 12/19/2020] [Accepted: 03/26/2021] [Indexed: 12/31/2022] Open
Abstract
Brief episodes of ischaemia and reperfusion render the heart resistant to subsequent prolonged ischaemic insult, termed ischaemic preconditioning. Here, we hypothesized that transient non-ischaemic stress by hypertrophic stimulation would induce endogenous cardioprotective signalling and enhance cardiac resistance to subsequent ischaemic damage. Transient transverse aortic constriction (TAC) or Ang-Ⅱ treatment was performed for 3-7 days in male mice and then withdrawn for several days by either aortic debanding or discontinuing Ang-Ⅱ treatment, followed by subsequent exposure to regional myocardial ischaemia by in situ coronary artery ligation. Following ischaemia/reperfusion (I/R) injury, myocardial infarct size and apoptosis were markedly reduced and contractile function was significantly improved in the TAC preconditioning group compared with that in the control group. Similar results were observed in mice receiving Ang-Ⅱ infusion. Mechanistically, TAC preconditioning enhanced ALDH2 activity, promoted AMPK activation and improved mitochondrial energy metabolism by increasing myocardial OXPHOS complex expression, elevating the mitochondrial ATP content and improving viable myocardium glucose uptake. Moreover, TAC preconditioning significantly mitigated I/R-induced myocardial iNOS/gp91phox activation, inhibited endoplasmic reticulum stress and ameliorated mitochondrial impairment. Using a pharmacological approach to inhibit AMPK signalling in the presence or absence of preconditioning, we demonstrated AMPK-dependent protective mechanisms of TAC preconditioning against I/R injury. Furthermore, treatment with adenovirus-encoded ALDH2 partially emulated the actions of hypertrophic preconditioning, as evidenced by improved mitochondrial metabolism, inhibited oxidative stress-induced mitochondrial damage and attenuated cell death through an AMPK-dependent mechanism, whereas genetic ablation of ALDH2 abrogated the aforementioned actions of TAC preconditioning. The present study demonstrates that preconditioning with hypertrophic stress protects the heart from I/R injury via mechanisms that improve mitochondrial metabolism, reduce oxidative/nitrative stress and inhibit apoptosis. ALDH2 is obligatorily required for the development of cardiac hypertrophic preconditioning and acts as the mediator of this process.
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Affiliation(s)
- Lei-Lei Ma
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Zhi-Wen Ding
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Pei-Pei Yin
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Jian Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Kai Hu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China
| | - Ai-Jun Sun
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China.
| | - Yun-Zeng Zou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China.
| | - Jun-Bo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Viral Heart Diseases, Shanghai, China; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China.
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20
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Li Y, Deng S, Wang X, Huang W, Chen J, Robbins N, Mu X, Essandoh K, Peng T, Jegga AG, Rubinstein J, Adams DE, Wang Y, Peng J, Fan GC. Sectm1a deficiency aggravates inflammation-triggered cardiac dysfunction through disruption of LXRα signalling in macrophages. Cardiovasc Res 2021; 117:890-902. [PMID: 32170929 PMCID: PMC8453795 DOI: 10.1093/cvr/cvaa067] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/17/2020] [Accepted: 03/12/2020] [Indexed: 01/03/2023] Open
Abstract
AIMS Cardiac dysfunction is a prevalent comorbidity of disrupted inflammatory homeostasis observed in conditions such as sepsis (acute) or obesity (chronic). Secreted and transmembrane protein 1a (Sectm1a) has previously been implicated to regulate inflammatory responses, yet its role in inflammation-associated cardiac dysfunction is virtually unknown. METHODS AND RESULTS Using the CRISPR/Cas9 system, we generated a global Sectm1a-knockout (KO) mouse model and observed significantly increased mortality and cardiac injury after lipopolysaccharide (LPS) injection, when compared with wild-type (WT) control. Further analysis revealed significantly increased accumulation of inflammatory macrophages in hearts of LPS-treated KO mice. Accordingly, ablation of Sectm1a remarkably increased inflammatory cytokines levels both in vitro [from bone marrow-derived macrophages (BMDMs)] and in vivo (in serum and myocardium) after LPS challenge. RNA-sequencing results and bioinformatics analyses showed that the most significantly down-regulated genes in KO-BMDMs were modulated by LXRα, a nuclear receptor with robust anti-inflammatory activity in macrophages. Indeed, we identified that the nuclear translocation of LXRα was disrupted in KO-BMDMs when treated with GW3965 (LXR agonist), resulting in higher levels of inflammatory cytokines, compared to GW3965-treated WT-cells. Furthermore, using chronic inflammation model of high-fat diet (HFD) feeding, we observed that infiltration of inflammatory monocytes/macrophages into KO-hearts were greatly increased and accordingly, worsened cardiac function, compared to WT-HFD controls. CONCLUSION This study defines Sectm1a as a new regulator of inflammatory-induced cardiac dysfunction through modulation of LXRα signalling in macrophages. Our data suggest that augmenting Sectm1a activity may be a potential therapeutic approach to resolve inflammation and associated cardiac dysfunction.
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Affiliation(s)
- Yutian Li
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Shan Deng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Xiaohong Wang
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Wei Huang
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Jing Chen
- Division of Biomedical Informatics, Cincinnati Children’s Hospital, Cincinnati, OH 45267, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Nathan Robbins
- Department of Internal Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Xingjiang Mu
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Kobina Essandoh
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Tianqing Peng
- Critical Illness Research, Lawson Health Research Institute, London, ON N6A 4G5, Canada
| | - Anil G Jegga
- Division of Biomedical Informatics, Cincinnati Children’s Hospital, Cincinnati, OH 45267, USA
| | - Jack Rubinstein
- Department of Internal Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - David E Adams
- Division of Immunology, Allergy and Rheumatology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Yigang Wang
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
| | - Jiangtong Peng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Guo-Chang Fan
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267-0575, USA
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21
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Mahmoud NM, Gomaa RS, Salem AE. Activation of liver X receptors ameliorates alterations in testicular function in rats exposed to electromagnetic radiation. ALEXANDRIA JOURNAL OF MEDICINE 2021. [DOI: 10.1080/20905068.2021.1884333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
| | - Randa Salah Gomaa
- Medical Physiology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Amal Elsayd Salem
- Pharmacology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
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22
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Zhao L, Lei W, Deng C, Wu Z, Sun M, Jin Z, Song Y, Yang Z, Jiang S, Shen M, Yang Y. The roles of liver X receptor α in inflammation and inflammation-associated diseases. J Cell Physiol 2020; 236:4807-4828. [PMID: 33305467 DOI: 10.1002/jcp.30204] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 10/19/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022]
Abstract
Liver X receptor α (LXRα; also known as NR1H3), an isoform of LXRs, is a member of the nuclear receptor family of transcription factors and plays essential roles in the transcriptional control of cholesterol homeostasis. Previous in-depth phenotypic analyses of mouse models with deficient LXRα have also demonstrated various physiological functions of this receptor within inflammatory responses. LXRα activation exerts a combination of metabolic and anti-inflammatory actions resulting in the modulation and the amelioration of inflammatory disorders. The tight "repercussions" between LXRα and inflammation, as well as cholesterol homeostasis, have suggested that LXRα could be pharmacologically targeted in pathologies such as atherosclerosis, acute lung injury, and Alzheimer's disease. This review gives an overview of the recent advances in understanding the roles of LXRα in inflammation and inflammation-associated diseases, which will help in the design of future experimental researches on the potential of LXRα and advance the investigation of LXRα as pharmacological inflammatory targets.
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Affiliation(s)
- Lin Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China.,Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wangrui Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhen Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China
| | - Meng Sun
- Department of Cardiology, The First Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhenxiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yanbin Song
- Department of Cardiology, Affiliated Hospital, Yan'an University, China
| | - Zhi Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China
| | - Shuai Jiang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China
| | - Mingzhi Shen
- Hainan Hospital of PLA General Hospital, The Second School of Clinical Medicine, Southern Medical University, Sanya, Hainan, China.,Hainan Branch of National Clinical Reasearch Center of Geriatrics Disease, Sanya, Hainan, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences, Northwest University, Xi'an, China
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23
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Hobuß L, Foinquinos A, Jung M, Kenneweg F, Xiao K, Wang Y, Zimmer K, Remke J, Just A, Nowak J, Schmidt A, Pich A, Mazlan S, Reamon-Buettner SM, Ramos GC, Frantz S, Viereck J, Loyer X, Boulanger C, Wollert KC, Fiedler J, Thum T. Pleiotropic cardiac functions controlled by ischemia-induced lncRNA H19. J Mol Cell Cardiol 2020; 146:43-59. [PMID: 32649928 DOI: 10.1016/j.yjmcc.2020.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 06/18/2020] [Accepted: 07/01/2020] [Indexed: 12/14/2022]
Abstract
Myocardial ischemia induces a multifaceted remodeling process in the heart. Novel therapeutic entry points to counteract maladaptive signalling include the modulation of non-coding RNA molecules such as long non-coding RNA (lncRNA). We here questioned if the lncRNA candidate H19 exhibits regulatory potential in the setting of myocardial infarction. Initial profiling of H19 expression revealed a dynamic expression profile of H19 with upregulation in the acute phase after murine cardiac ischemia. In vitro, we found that oxygen deficiency leads to H19 upregulation in several cardiac cell types. Repression of endogenous H19 caused multiple phenotypes in cultivated murine cardiomyocytes including enhanced cardiomyocyte apoptosis, at least partly through attenuated vitamin D signalling. Unbiased proteome analysis revealed further involvement of H19 in mRNA splicing and translation as well as inflammatory signalling pathways. To study H19 function more precisely, we investigated the phenotype of systemic H19 loss in a genetic mouse model of H19 deletion (H19 KO). Infarcted heart tissue of H19 KO mice showed a massive increase of pro-inflammatory cytokines after ischemia-reperfusion injury (I/R) without significant effects on scar formation or cardiac function but exaggerated cardiac hypertrophy indicating pathological cardiac remodeling. H19-dependent changes in cardiomyocyte-derived extracellular vesicle release and alterations in NF-κB signalling were evident. Cardiac cell fractionation experiments revealed that enhanced H19 expression in the proliferative phase after MI derived mainly from cardiac fibroblasts. Here further research is needed to elucidate its role in fibroblast activation and function. In conclusion, the lncRNA H19 is dynamically regulated after MI and involved in multiple pathways of different cardiac cell types including cardiomyocyte apoptosis and cardiac inflammation.
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Affiliation(s)
- Lisa Hobuß
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Ariana Foinquinos
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Mira Jung
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Franziska Kenneweg
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Ke Xiao
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Yong Wang
- Division of Molecular and Translational Cardiology, Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Karina Zimmer
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Janet Remke
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Annette Just
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Juliette Nowak
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Arne Schmidt
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Andreas Pich
- Core Unit Mass Spectrometry and Proteomics, Institute of Toxicology, Hannover Medical School, Hannover, Germany
| | | | | | - Gustavo Campos Ramos
- Department of Internal Medicine I, University Hospital Wuerzburg, Wuerzburg, Germany; Comprehensive Heart Failure Center, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Stefan Frantz
- Department of Internal Medicine I, University Hospital Wuerzburg, Wuerzburg, Germany; Comprehensive Heart Failure Center, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Janika Viereck
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Xavier Loyer
- Université de Paris, PARCC, INSERM, F-75015 Paris, France
| | | | - Kai C Wollert
- Division of Molecular and Translational Cardiology, Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Jan Fiedler
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany,; REBIRTH Excellence Cluster, Hannover Medical School, Hannover, Germany.
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24
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Zang M, Zhao Y, Gao L, Zhong F, Qin Z, Tong R, Ai L, Petersen L, Yan Y, Gao Y, Zhu C, Pu J. The circadian nuclear receptor RORα negatively regulates cerebral ischemia-reperfusion injury and mediates the neuroprotective effects of melatonin. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165890. [PMID: 32599143 DOI: 10.1016/j.bbadis.2020.165890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/13/2020] [Accepted: 06/22/2020] [Indexed: 12/24/2022]
Abstract
Disruptions of the circadian rhythm and reduced circulating levels of the circadian hormone melatonin predispose to ischemic stroke. Although the nuclear receptor RORα is considered as a circadian rhythm regulator and a mediator of certain melatonin effects, its potential role in cerebral ischemia-reperfusion (CI/R) injury and in the neuroprotective effects of melatonin remain undefined. Here, we observed that CI/R injury in RORα-deficient mice was associated with greater cerebral infarct size, brain edema, and cerebral apoptosis compared with wild-type model. In contrast, transgenic mice with brain-specific overexpression of RORα versus non-transgenic controls exerted significantly reduced infarct volume, brain edema and apoptotic response induced by CI/R. Mechanistically, RORα deficiency was found to exacerbate apoptosis pathways mediated by endoplasmic-reticulum stress and mitochondria and aggravate oxidative/nitrative stress after CI/R. Further studies revealed that RORα deficiency intensified the activation of nuclear factor-κB signaling induced by CI/R. Given the emerging evidence of RORα as an essential melatonin activity mediator, we further investigated the RORα roles in melatonin-exerted neuroprotection against acute ischemic stroke. Melatonin treatment significantly decreased infarct volume and cerebral apoptosis; mitigated endoplasmic reticulum stress and mitochondrial dysfunction; and inhibited CI/R injury-induced oxidative/nitrative stress and nuclear factor-κB activation, which was eradicated in RORα-deficient mice. Collectively, current findings suggest that RORα is a novel endogenous neuroprotective receptor, and a pivotal mediator of melatonin's suppressive effects against CI/R injury.
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Affiliation(s)
- Minhua Zang
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Yichao Zhao
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Lingchen Gao
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Fangyuan Zhong
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Zihan Qin
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Renyang Tong
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Lulu Ai
- Department of Neurology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lauren Petersen
- Department of Anesthesiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Yang Yan
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Yu Gao
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China
| | - Cansheng Zhu
- Department of Neurology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Jun Pu
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Cancer Institute, Shanghai, China.
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25
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Activation of Liver X Receptors by GW3965 Attenuated Deoxycorticosterone Acetate-Salt Hypertension-Induced Cardiac Functional and Structural Changes. J Cardiovasc Pharmacol 2020; 74:105-117. [PMID: 31397742 DOI: 10.1097/fjc.0000000000000693] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, the effect of liver X receptor (LXR) activation on hypertension-induced cardiac structural and functional alterations was investigated. Hypertension was induced by deoxycorticosterone acetate (DOCA)-salt administration in uninephrectomized rats for 6 weeks. LXR agonist GW3965 (3-{3-[(2-chloro-3-trifluoromethyl-benzyl)-(2,2-diphenyl-ethyl)-amino]-propoxy}-phenyl)-acetic acid was given for the past week. Rhythmic activity and contractions of the isolated heart tissues were recorded. Biochemical parameters were assessed in ventricular tissue and plasma samples. Cardiac expressions of various proteins were examined, and histopathological evaluation was performed in the left ventricle and liver. GW3965 reduced systolic blood pressure and enhanced noradrenaline-stimulated papillary muscle contraction induced by DOCA-salt + uninephrectomy. Plasma and tissue total antioxidant capacity (TAC) increased and tissue 4-hydroxynonenal (4-HNE) levels decreased in the DOCA-salt group. GW3965 elevated plasma and tissue TAC levels in both of groups. Glucose-regulated protein-78 (GRP78), phospho-dsRNA-activated-protein kinase-like ER kinase (p-PERK), matrix metalloproteinase-2 (MMP-2), and nuclear factor-κB p65 (NF-κB p65) expression was augmented, and inhibitor-κB-α (IκB-α) expression was reduced in hypertensive hearts. The altered levels of all these markers were reversed by GW3965. Also, GW3965 ameliorated DOCA-salt + uninephrectomy-induced cardiac and hepatic inflammation and fibrosis. However, GW3965 unchanged the plasma lipid levels and hepatic balloon degeneration score. These results demonstrated that LXR activation may improve hypertension-induced cardiac changes without undesired effects.
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26
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Maczewsky J, Kaiser J, Krippeit-Drews P, Drews G. Approved LXR agonists exert unspecific effects on pancreatic β-cell function. Endocrine 2020; 68:526-535. [PMID: 32146655 PMCID: PMC7308254 DOI: 10.1007/s12020-020-02241-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/24/2020] [Indexed: 12/20/2022]
Abstract
Novel agonists of the nuclear liver-X-receptor (LXR) are designed to treat metabolic disorders or cancer. The rationale to develop these new drugs is based on promising results with established LXR agonist like T0901317 and GW3965. LXRα and LXRβ are expressed in β-cells, and expression is increased by T0901317. The aim of the present study was to evaluate whether effects of these drugs on β-cell function are specific and reliably linked to LXR activation. T0901317 and GW3965, widely used as specific LXR agonists, show rapid, non-genomic effects on stimulus-secretion coupling of mouse pancreatic β-cells at low µM concentrations. T0901317 lowered the cytosolic Ca2+ concentration, reduced or completely inhibited action potentials, and decreased insulin secretion. GW3965 exerted similar effects on insulin secretion. T0901317 affected the production of reactive oxygen species and ATP. The involvement of the classical nuclear LXRs in T0901317- and GW3965-mediated effects in β-cells could be ruled out using LXRα, LXRβ and double knockout mice. Our results strongly suggest that LXR agonists, that are considered to be specific for this receptor, interfere with mitochondrial metabolism and metabolism-independent processes in β-cells. Thus, it is indispensable to test novel LXR agonists accompanying to ongoing clinical trials for acute and chronic effects on cell function in cellular systems and/or animal models lacking classical LXRs.
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Affiliation(s)
- Jonas Maczewsky
- Institute of Pharmacy, Department of Pharmacology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Julia Kaiser
- Institute of Pharmacy, Department of Pharmacology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Peter Krippeit-Drews
- Institute of Pharmacy, Department of Pharmacology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Gisela Drews
- Institute of Pharmacy, Department of Pharmacology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany.
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27
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Fan W, Zhang R, Han D, Jiang Z, Li S, Zhang J, Li Y, Wang Y, Cao F. Reduced Sirtuin1 signalling exacerbates diabetic mice hindlimb ischaemia injury and inhibits the protective effect of a liver X receptor agonist. J Cell Mol Med 2020; 24:5476-5490. [PMID: 32286000 PMCID: PMC7214142 DOI: 10.1111/jcmm.15201] [Citation(s) in RCA: 4] [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: 09/17/2019] [Revised: 01/29/2020] [Accepted: 03/10/2020] [Indexed: 12/30/2022] Open
Abstract
Diabetes mellitus causes endothelial dysfunction, which further exacerbates peripheral arterial disease (PAD). Improving endothelial function via reducing endothelial oxidative stress (OS) may be a promising therapy for diabetic PAD. Activation of liver X receptor (LXR) inhibits excessive OS and provides protective effects on endothelial cells in diabetic individuals. Therefore, we investigated the effects of LXR agonist treatment on diabetic PAD with a focus on modulating endothelial OS. We used a streptozotocin‐induced diabetes mouse model combined with a hindlimb ischaemia (HLI) injury to mimic diabetic PAD, which was followed by LXR agonist treatment. In our study, the LXR agonist T0901317 protected against HLI injury in diabetic mice by attenuating endothelial OS and stimulating angiogenesis. However, a deficiency in endothelial Sirtuin1 (SIRT1) largely inhibited the therapeutic effects of T0901317. Furthermore, we found that the underlying therapeutic mechanisms of T0901317 were related to SIRT1 and non‐SIRT1 signalling, and the isoform LXRβ was involved in LXR agonist‐elicited SIRT1 regulation. In conclusion, LXR agonist treatment protected against HLI injury in diabetic mice via mitigating endothelial OS and stimulating cellular viability and angiogenesis by LXRβ, which elicited both SIRT1‐mediated and non‐SIRT1‐mediated signalling pathways. Therefore, LXR agonist treatment may be a promising therapeutic strategy for diabetic PAD.
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Affiliation(s)
- Wensi Fan
- Department of Cardiology & National Clinical Research Center for Geriatric Diseases2nd Medical CenterChinese PLA General HospitalBeijingChina
| | - Ran Zhang
- Department of Cardiology1st Medical CenterChinese PLA General HospitalBeijingChina
| | - Dong Han
- Department of CardiologyXijing HospitalFourth Military Medical UniversityXianChina
| | - Zhenhua Jiang
- Department of CardiologyXijing HospitalFourth Military Medical UniversityXianChina
| | - Shuang Li
- Department of CardiologyThe General Hospital of Western Theater Command (Chengdu Military General Hospital)Chengdu610083China
| | - Jibin Zhang
- Department of Cardiology & National Clinical Research Center for Geriatric Diseases2nd Medical CenterChinese PLA General HospitalBeijingChina
| | - Yanhua Li
- Department of Cardiology & National Clinical Research Center for Geriatric Diseases2nd Medical CenterChinese PLA General HospitalBeijingChina
| | - Yabin Wang
- Department of Cardiology & National Clinical Research Center for Geriatric Diseases2nd Medical CenterChinese PLA General HospitalBeijingChina
- Department of Cardiology1st Medical CenterChinese PLA General HospitalBeijingChina
| | - Feng Cao
- Department of Cardiology & National Clinical Research Center for Geriatric Diseases2nd Medical CenterChinese PLA General HospitalBeijingChina
- Department of Cardiology1st Medical CenterChinese PLA General HospitalBeijingChina
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28
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Yang Y, Zhou Q, Gao A, Chen L, Li L. Endoplasmic reticulum stress and focused drug discovery in cardiovascular disease. Clin Chim Acta 2020; 504:125-137. [PMID: 32017925 DOI: 10.1016/j.cca.2020.01.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/28/2022]
Abstract
Endoplasmic reticulum (ER) is an intracellular membranous organelle involved in the synthesis, folding, maturation and post-translation modification of secretory and transmembrane proteins. Therefore, ER is closely related to the maintenance of intracellular homeostasis and the good balance between health and diseases. Endoplasmic reticulum stress (ERS) occurs when unfolded/misfolded proteins accumulate after disturbance of ER environment. In response to ERS, cells trigger an adaptive response called the Unfolded protein response (UPR), which helps cells cope with the stress. In recent years, a large number of studies show that ERS can aggravate cardiovascular diseases. ERS-related proteins expression in cardiovascular diseases is on the rise. Therefore, down-regulation of ERS is critical for alleviating symptoms of cardiovascular diseases, which may be used in the near future to treat cardiovascular diseases. This article reviews the relationship between ERS and cardiovascular diseases and drugs that inhibit ERS. Furthermore, we detail the role of ERS inhibitors in the treatment of cardiovascular disease. Drugs that inhibit ERS are considered as promising strategies for the treatment of cardiovascular diseases.
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Affiliation(s)
- Yiyuan Yang
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Qionglin Zhou
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Anbo Gao
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
| | - Lanfang Li
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
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29
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Li Q, Yang J, Zhang J, Liu XW, Yang CJ, Fan ZX, Wang HB, Yang Y, Zheng T, Yang J. Inhibition of microRNA-327 ameliorates ischemia/reperfusion injury-induced cardiomyocytes apoptosis through targeting apoptosis repressor with caspase recruitment domain. J Cell Physiol 2019; 235:3753-3767. [PMID: 31587299 DOI: 10.1002/jcp.29270] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/27/2019] [Indexed: 12/17/2022]
Abstract
Apoptosis is the major cause of cardiomyocyte death in myocardial ischemia/reperfusion injury (MI/RI). Increasing evidence suggests that microRNAs (miRNAs) can contribute to the regulation of cardiomyocytes apoptosis by posttranscriptional modulation of gene expression networks. However, the effects of miR-327 in regulating MI/RI-induced cardiomyocytes apoptosis have not been extensively investigated. This study was performed to test whether miR-327 participate in cardiomyocytes apoptosis both in vitro and in vivo, and reveal the potential molecular mechanism of miR-327 regulated MI/RI through targeting apoptosis repressor with caspase recruitment domain (ARC). Sprague-Dawley (SD) rats were subjected to MI/RI by left anterior descending coronary artery occlusion for 30 min and reperfusion for 3 hr. H9c2 cells were exposed to hypoxia for 4 hr and reoxygenation for 12 hr to mimic I/R injury. miRNA-327 recombinant adenovirus vectors were transfected into H9c2 cells for 48 hr and rats for 72 hr before H/R and MI/RI treatment, respectively. The apoptosis rate, downstream molecules of apoptotic pathway, and the target reaction between miRNA-327 and ARC were evaluated. Our results showed that miR-327 was upregulated and ARC was downregulated in the myocardial tissues of MI/RI rats and in H9c2 cells with H/R treatment. Inhibition of miR-327 decreased the expression levels of proapoptotic proteins Fas, FasL, caspase-8, Bax, cleaved caspase-9, cleaved caspase-3, and the release of cytochrome-C, as well as increasing the expression levels of antiapoptotic protein Bcl-2 via negative regulation of ARC both in vivo or vitro. In contrast, overexpression miR-327 showed the reverse effect. Moreover, the results of luciferase reporter assay indicated miR-327 targets ARC directly at the posttranscriptional level. Taken together, inhibition of miR-327 could attenuate cardiomyocyte apoptosis and alleviate I/R-induced myocardial injury via targeting ARC, which offers a new therapeutic strategy for MI/RI.
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Affiliation(s)
- Qi Li
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China.,Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China.,Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Jun Yang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China.,Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China
| | - Jing Zhang
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China.,Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Xiao-Wen Liu
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China.,Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Chao-Jun Yang
- Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Zhi-Xing Fan
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Hui-Bo Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ying Yang
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China.,Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Tao Zheng
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China.,Central Laboratory, Yichang Central People's Hospital, Yichang, Hubei, China
| | - Jian Yang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China.,Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, Hubei, China
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30
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Han D, Wang Y, Chen J, Zhang J, Yu P, Zhang R, Li S, Tao B, Wang Y, Qiu Y, Xu M, Gao E, Cao F. Activation of melatonin receptor 2 but not melatonin receptor 1 mediates melatonin-conferred cardioprotection against myocardial ischemia/reperfusion injury. J Pineal Res 2019; 67:e12571. [PMID: 30903623 DOI: 10.1111/jpi.12571] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/01/2019] [Accepted: 03/17/2019] [Indexed: 12/14/2022]
Abstract
Accumulated pieces of evidence have proved the beneficial effects of melatonin on myocardial ischemia/reperfusion (MI/R) injury, and these effects were largely dependent on melatonin membrane receptor activation. In humans and other mammals, there are two types of melatonin receptors, including the melatonin receptor 1 (MT1, melatonin receptor 1a or MTNR1A) and melatonin receptor 1 (MT2, melatonin receptor 1b or MTNR1B) receptor subtypes. However, which receptor mediates melatonin-conferred cardioprotection remains unclear. In this study, we employed both loss-of-function and gain-of-function approaches to reveal the answer. Mice (wild-type; MT1 or MT2 silencing by in vivo minicircle vector; and those overexpressing MT1 or MT2 by in vivo AAV9 vector) were exposed to MI/R injury. Both MT1 and MT2 were present in wild-type myocardium. MT2, but not MT1, was essentially upregulated after MI/R Melatonin administration significantly reduced myocardial injury and improved cardiac function after MI/R Mechanistically, melatonin treatment suppressed MI/R-initiated myocardial oxidative stress and nitrative stress, alleviated endoplasmic reticulum stress and mitochondrial injury, and inhibited myocardial apoptosis. These beneficial actions of melatonin were absent in MT2-silenced heart, but not the MT1 subtype. Furthermore, AAV9-mediated cardiomyocyte-specific overexpression of MT2, but not MT1, mitigated MI/R injury and improved cardiac dysfunction, which was accompanied by significant amelioration of oxidative stress, endoplasmic reticulum stress, and mitochondrial dysfunction. Mechanistically, MT2 protected primary cardiomyocytes against hypoxia/reoxygenation injury via MT2/Notch1/Hes1/RORα signaling. Our study presents the first direct evidence that the MT2 subtype, but not MT1, is a novel endogenous cardiac protective receptor against MI/R injury. Medications specifically targeting MT2 may hold promise in fighting ischemic heart disease.
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MESH Headings
- Animals
- Apoptosis
- Disease Models, Animal
- Endoplasmic Reticulum Stress/genetics
- Humans
- Male
- Mice
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocardium/metabolism
- Myocardium/pathology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidative Stress/genetics
- Receptor, Melatonin, MT1/genetics
- Receptor, Melatonin, MT1/metabolism
- Receptor, Melatonin, MT2/genetics
- Receptor, Melatonin, MT2/metabolism
- Signal Transduction
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Affiliation(s)
- Dong Han
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yongjun Wang
- Department of Cardiovascular Surgery, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiangwei Chen
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jibin Zhang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Yu
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ran Zhang
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Shuang Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu, China
| | - Bo Tao
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yabin Wang
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ya Qiu
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Mengqi Xu
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Erhe Gao
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Feng Cao
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases, 2nd Medical Center, Chinese PLA General Hospital, Beijing, China
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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31
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Zhang BF, Jiang H, Chen J, Guo X, Li Y, Hu Q, Yang S. Nobiletin ameliorates myocardial ischemia and reperfusion injury by attenuating endoplasmic reticulum stress-associated apoptosis through regulation of the PI3K/AKT signal pathway. Int Immunopharmacol 2019; 73:98-107. [PMID: 31082728 DOI: 10.1016/j.intimp.2019.04.060] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/29/2019] [Accepted: 04/29/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Nobiletin is a natural polymethoxylated flavone that confers antioxidative, anti-inflammatory and anti-apoptotic efficacies. However, the potential benefits of nobiletin preconditioning on myocardial ischemia and reperfusion injury (MIRI) remains largely unknown. METHODS MIRI was induced by ligation of the left anterior descending coronary artery and reperfusion. Pre-treatment with nobiletin, with or without PI3K/AKT inhibitor LY294002, was performed at the onset of reperfusion. Histological analyses, apoptotic evaluation, plasma biomarkers of myocardial injury, echocardiographic evaluation of cardiac function and myocardial levels of endoplasmic reticulum stress (ERS)-related molecules were observed. RESULTS Nobiletin pre-treatment significantly deceased the infract size and number of apoptotic cells in the myocardium of MIRI rats, as determined by Terminal deoxynucleotidyl transferase dUTP nick end labeling staining. Moreover, the plasma levels of lactate dehydrogenase (LDH) and creatine kinase-MB (CK-MB) also markedly decreased. In addition, pre-treatment with nobiletin restored the impaired cardiac systolic function, as evidenced by echocardiographic evaluation results. Importantly, pre-treatment with nobiletin significantly downregulated the myocardial mRNA and protein levels of ERS-related signal molecules, including GRP78, CHOP and caspase-12, but upregulated the levels of p-PI3K and p-AKT. Interestingly, co-treatment with LY294002 significantly abolished the benefits of nobiletin pre-treatment on cardiac function, myocardial apoptosis, cardiomyocyte injuries, and changes in myocardial levels of ERS-related signaling molecules. CONCLUSION Nobiletin pre-treatment may alleviate MIRI probably via the attenuation of PI3K/AKT-mediated ERS-related myocardial apoptosis.
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Affiliation(s)
- Bo-Fang Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China.
| | - Jing Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China.
| | - Xin Guo
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 43000, Hubei Province, China
| | - Yue Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Qi Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Shuo Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China
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32
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Dou F, Chen J, Cao H, Jia Q, Shen D, Liu T, Chen C. Anti-atherosclerotic effects of LXRα agonist through induced conversion of M1 macrophage to M2. Am J Transl Res 2019; 11:3825-3840. [PMID: 31312392 PMCID: PMC6614608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 05/11/2019] [Indexed: 06/10/2023]
Abstract
Liver X receptor alpha (LXRα) plays important roles in lipid metabolism and inflammation. Therefore, it is essential for protection against atherosclerosis (AS). In AS plaques, the key cells involved in lipid metabolism and inflammation are macrophages. However, the mechanism by which LXRα regulates macrophage involvement in AS formation remains unclear. In this study, we first confirmed the effects of an LXRα agonist (T0901317) and antagonist (GSK2033) on foam cell formation and inflammation in vivo and in vitro. Indeed, T0901317 reduced the number of macrophages in AS plaques and decreased the number of migrated macrophages, as assessed using an in vitro transwell assay. Next, we investigated the relationship between the reduction in macrophages in AS plaques and cytokine levels or foam cell formation. The results show that T0901317 reduced the number of high cholesterol-induced M1 macrophages by converting them into M2 macrophages in vivo and in vitro. Due to this phenotypic transition of macrophages, the inflammatory response was alleviated, and lipid metabolism was enhanced in AS plaques. This effect was achieved by promoting the expression of reverse transporters (ATP-binding cassette transporter member 1 and ATP-binding cassette subfamily G member 1) and inhibiting the phosphorylation of nuclear factor-κB-mediated phosphorylation.
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Affiliation(s)
- Fangfang Dou
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Jiulin Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Hui Cao
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Qingling Jia
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Dingzhu Shen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine Shanghai 200031, China
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33
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Guo S, Lu J, Zhuo Y, Xiao M, Xue X, Zhong S, Shen X, Yin C, Li L, Chen Q, Zhu M, Chen B, Zhao M, Zheng L, Tao Y, Yin H. Endogenous cholesterol ester hydroperoxides modulate cholesterol levels and inhibit cholesterol uptake in hepatocytes and macrophages. Redox Biol 2018; 21:101069. [PMID: 30576926 PMCID: PMC6302155 DOI: 10.1016/j.redox.2018.101069] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/06/2018] [Indexed: 12/14/2022] Open
Abstract
Dysregulation of cholesterol metabolism represents one of the major risk factors for atherosclerotic cardiovascular disease (CVD). Oxidized cholesterol esters (oxCE) in low-density lipoprotein (LDL) have been implicated in CVD but the underlying mechanisms remain poorly defined. We use a targeted lipidomic approach to demonstrate that levels of oxCEs in human plasma are associated with different types of CVD and significantly elevated in patients with myocardial infarction. We synthesized a major endogenous cholesterol ester hydroperoxide (CEOOH), cholesteryl-13(cis, trans)-hydroperoxy-octadecadienoate (ch-13(c,t)-HpODE) and show that this endogenous compound significantly increases plasma cholesterol level in mice while decrease cholesterol levels in mouse liver and peritoneal macrophages, which is primarily due to the inhibition of cholesterol uptake in macrophages and liver. Further studies indicate that inhibition of cholesterol uptake by ch-13(c,t)-HpODE in macrophages is dependent on LXRα-IDOL-LDLR pathway, whereas inhibition on cholesterol levels in hepatocytes is dependent on LXRα and LDLR. Consistently, these effects on cholesterol levels by ch-13(c,t)-HpODE are diminished in LDLR or LXRα knockout mice. Together, our study provides evidence that elevated plasma cholesterol levels by CEOOHs are primarily due to the inhibition of cholesterol uptake in the liver and macrophages, which may play an important role in the pathogenesis of CVD.
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Affiliation(s)
- Shuyuan Guo
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Jianhong Lu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Yujuan Zhuo
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Mengqing Xiao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Xinli Xue
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Shanshan Zhong
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Xia Shen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Chunzhao Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Luxiao Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Qun Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China
| | - Mingjiang Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China
| | - Buxing Chen
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Mingming Zhao
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Lemin Zheng
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Yongzhen Tao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China
| | - Huiyong Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai 200031, China; University of Chinese Academy of Sciences, CAS, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 200031, China; Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100000, China.
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34
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Gao Y, Zhao Y, Yuan A, Xu L, Huang X, Su Y, Gao L, Ji Q, Pu J, He B. Effects of farnesoid-X-receptor SUMOylation mutation on myocardial ischemia/reperfusion injury in mice. Exp Cell Res 2018; 371:301-310. [PMID: 30098335 DOI: 10.1016/j.yexcr.2018.07.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 12/19/2022]
Abstract
Myocardial ischemia/reperfusion (MI/R) injury induces excessive cellular apoptosis and contributes significantly to final infarct size. We previously demonstrated that a nuclear receptor, Farnesoid X receptor (FXR), plays a crucial role in mediating myocardial apoptosis. The FXR functions are regulated by post translational modifications (PTM). However, whether the proapoptotic effect of FXR in MI/R injury is regulated by PTM remains unclear. Here, we aimed to study the effect of SUMOylation, a PTM involved in the pathogenesis of MI/R injury per se, on the proapoptotic effect of FXR in MI/R injury. We observed that FXR could be SUMOylated in heart tissues, and FXR SUMOylation levels were downregulated in ischemia reperfused myocardium. By overexpression of SUMOylation-defective FXR mutant, it was demonstrated that decreased SUMOylation augmented the detrimental effect of FXR, via activation of mitochondrial apoptosis pathway and autophagy dysfunction in MI/R injury. Further mechanistic studies suggested that decreased SUMOylation levels increased the transcription activity of FXR, and the subsequently upregulated FXR target gene SHP mediated the proapoptotic effects of FXR. Taken together, we provided the first evidence that the cardiac effects of FXR could be regulated by SUMOylation, and that manipulating FXR SUMOylation levels may hold therapeutic promise for constraining MI/R injury.
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Affiliation(s)
- Yi Gao
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yichao Zhao
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ancai Yuan
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Longwei Xu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xian Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, China
| | - Yuanyuan Su
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Lingchen Gao
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Qingqi Ji
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jun Pu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
| | - Ben He
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
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35
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Differential effects of and mechanisms underlying the protection of cardiomyocytes by liver-X-receptor subtypes against high glucose stress-induced injury. Biochem Biophys Res Commun 2018; 503:1372-1377. [PMID: 30029876 DOI: 10.1016/j.bbrc.2018.07.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 07/10/2018] [Indexed: 11/21/2022]
Abstract
Liver-X-receptors (LXRs) are ligand-activated transcription factors belonging to the nuclear receptor superfamily. The two popular homologous receptor subtypes, LXRα and LXRβ, exhibit differential expression patterns, thereby probably playing different roles in different contexts. This study aimed to evaluate the different roles of the two LXR subtypes and the mechanisms underlying their protection of cardiomyocytes against high-glucose stress. Silencing of LXRα, but not LXRβ impaired normal LXR-mediated cardioprotective effects against high glucose-induced oxidative stress, apoptosis, and inflammation. Mechanistically, silencing of small ubiquitin-like modifier (SUMO)1 or SUMO2/3 did not affect LXR-mediated cardioprotective effects; however, these were impaired in response to nuclear receptor corepressor (NCoR) silencing. Together, these findings indicate that LXRα, but not LXRβ, protects against high glucose-induced cardiomyocyte injury, probably via the NCoR-dependent transrepression of downstream target genes.
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36
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Fu Y, Jiang W, Zhao Y, Huang Y, Zhang H, Wang H, Pu J. A Simple and Efficient Method for In Vivo Cardiac-specific Gene Manipulation by Intramyocardial Injection in Mice. J Vis Exp 2018. [PMID: 29708533 DOI: 10.3791/57074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Gene manipulation specifically in the heart significantly potentiate the investigation of cardiac disease pathomechanisms and their therapeutic potential. In vivo cardiac-specific gene delivery is commonly achieved by either systemic or local delivery. Systemic injection via tail vein is easy and efficient in manipulating cardiac gene expression by using recombinant adeno-associated virus 9 (AAV9). However, this method requires a relatively high amount of vector for efficient transduction, and may result in nontarget organ gene transduction. Here, we describe a simple, efficient, and time-saving method of intramyocardial injection for in vivo cardiac-specific gene manipulation in mice. Under anesthesia (without ventilation), the pectoral major and minor muscles were bluntly dissected, and the mouse heart was quickly exposed by manual externalization through a small incision at the fourth intercostal space. Subsequently, adenovirus encoding luciferase (Luc) and vitamin D receptor (VDR), or short hairpin RNA (shRNA) targeting VDR, was injected with a Hamilton syringe into the myocardium. Subsequent in vivo imaging demonstrated that luciferase was successfully overexpressed specifically in the heart. Moreover, Western blot analysis confirmed the successful overexpression or silencing of VDR in the mouse heart. Once mastered, this technique can be used for gene manipulation, as well as injection of cells or other materials such as nanogels in the mouse heart.
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Affiliation(s)
- Yanan Fu
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical College; Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University
| | - Wenlong Jiang
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University
| | - Yichao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University
| | - Yuli Huang
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical College
| | - Heng Zhang
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical College;
| | - Hongju Wang
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical College
| | - Jun Pu
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical College; Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University;
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37
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Cheng MX, Huang P, He Q, Chen Y, Li JZ. Liver X Receptors Activation Attenuates Ischemia Reperfusion Injury of Liver Graft in Rats. J INVEST SURG 2017; 32:298-303. [PMID: 29286833 DOI: 10.1080/08941939.2017.1412543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Purpose: Suppression of the Toll like receptor 4 (TLR4)-nuclear factor-κB (NF-κB) signaling was critical in protection against liver IRI. Previous studies revealed that Liver X receptors (LXRs) activation could antagonize TLR4-NF-κB signaling. The purpose of this study is to determine whether LXRs agonist GW3965 can suppress the TLR4-NF-κB signaling during liver transplantation and protect ischemia-reperfusion injury (IRI). Materials and Methods: Sprague Dawley (SD) rats were used to perform orthotropic liver transplantation. Donors were pretreatment with GW3965 (0.3 mg/kg) through caudal vein injection 30 min before the surgery. The followings were analyzed after transplantation: alanine aminotransferase (ALT), interleukin 6 (IL-6) and tumor necrosis factor α (TNF-α) level in serum, ATP binding cassette transporter A1 (Abca1) expression, NF-κB transcriptional activity, apoptosis and histological injury. Results: GW3965 pretreatment significantly ameliorated the degree of IRI associated with the effects of upregulating Abca1 expression, inhibiting NF-κB transcriptional activity, and downregulating TNF-α and IL-6 level. Conclusion: LXRs activation attenuated hepatic IRI by preventing TLR4-NF-κB signaling.
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Affiliation(s)
- Ming-Xiang Cheng
- a Department of Hepatobiliary Surgery , The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Ping Huang
- a Department of Hepatobiliary Surgery , The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Qiang He
- a Department of Hepatobiliary Surgery , The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Yong Chen
- a Department of Hepatobiliary Surgery , The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Jin-Zheng Li
- b Department of Hepatobiliary Surgery , The Second Affiliated Hospital of Chongqing Medical University , Chongqing , China
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Gao L, Zhao Y, He J, Yan Y, Xu L, Lin N, Ji Q, Tong R, Fu Y, Gao Y, Su Y, Yuan A, He B, Pu J. The desumoylating enzyme sentrin-specific protease 3 contributes to myocardial ischemia reperfusion injury. J Genet Genomics 2017; 45:125-135. [PMID: 29576508 DOI: 10.1016/j.jgg.2017.12.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 12/26/2017] [Accepted: 12/27/2017] [Indexed: 01/07/2023]
Abstract
Sentrin-specific protease 3 (SENP3), a member of the desumoylating enzyme family, is known as a redox sensor and could regulate multiple cellular signaling pathways. However, its implication in myocardial ischemia reperfusion (MIR) injury is unclear. Here, we observed that SENP3 was expressed and upregulated in the mouse heart depending on reactive oxygen species (ROS) production in response to MIR injury. By utilizing siRNA-mediated cardiac specific gene silencing, SENP3 knockdown was demonstrated to significantly reduce MIR-induced infarct size and improve cardiac function. Mechanistic studies indicated that SENP3 silencing ameliorated myocardial apoptosis mainly via suppression of endoplasmic reticulum (ER) stress and mitochondrial-mediated apoptosis pathways. By contrast, adenovirus-mediated cardiac SENP3 overexpression significantly exaggerated MIR injury. Further molecular analysis revealed that SENP3 promoted mitochondrial translocation of dynamin-related protein 1 (Drp1) in reperfused myocardium. In addition, mitochondrial division inhibitor-1 (Mdivi-1), a pharmacological inhibitor of Drp1, significantly attenuated the exaggerated mitochondrial abnormality and cardiac injury by SENP3 overexpression after MIR injury. Taken together, we provide the first direct evidence that SENP3 upregulation pivotally contributes to MIR injury in a Drp1-dependent manner, and suggest that SENP3 suppression may hold therapeutic promise for constraining MIR injury.
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Affiliation(s)
- Lingchen Gao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yichao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jie He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yang Yan
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Longwei Xu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Nan Lin
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qingqi Ji
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Renyang Tong
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yanan Fu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yu Gao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yuanyuan Su
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Ancai Yuan
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
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Han D, Li X, Li S, Su T, Fan L, Fan WS, Qiao HY, Chen JW, Fan MM, Li XJ, Wang YB, Ma S, Qiu Y, Tian ZH, Cao F. Reduced silent information regulator 1 signaling exacerbates sepsis-induced myocardial injury and mitigates the protective effect of a liver X receptor agonist. Free Radic Biol Med 2017; 113:291-303. [PMID: 28993270 DOI: 10.1016/j.freeradbiomed.2017.10.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/26/2017] [Accepted: 10/05/2017] [Indexed: 12/29/2022]
Abstract
Myocardial injury and dysfunction are critical manifestations of sepsis. Previous studies have reported that liver X receptor (LXR) activation is protective during sepsis. However, whether LXR activation protects against septic heart injury and its underlying mechanisms remain elusive. This study was designed to determine the role of LXR activation in the septic heart with a focus on SIRT1 (silent information regulator 1) signaling. Male cardiac-specific SIRT1 knockout mice (SIRT1-/-) and their wild-type littermates were subjected to sepsis by cecal ligation and puncture (CLP) in the presence or absence of LXR agonist T0901317. The survival rate of mice was recorded during the 7-day period post CLP. Our results demonstrated that SIRT1-/- mice suffered from exacerbated mortality and myocardial injury in comparison with their wild-type littermates. Meanwhile, T0901317 treatment improved mice survival, accompanied by significant ameliorations of myocardial injury and dysfunction in wild-type mice but not in SIRT1-/- mice. Furthermore, the levels of myocardial inflammatory cytokines (TNF-α, IL-6, IL-1β, MCP-1, MPO and HMGB1), oxidative stress (ROS generation, MDA), endoplasmic-reticulum (ER) stress (protein levels of CHOP, GRP78, GRP94, IRE1α, and ATF6), and cardiac apoptosis following CLP were inhibited by T0901317 treatment in wild-type mice but not in SIRT1-/- mice. Mechanistically, T0901317 enhanced SIRT1 signaling and the subsequent deacetylation and activation of antioxidative FoxO1 and anti-ER stress HSF1, as well as the deacetylation and inhibition of pro-inflammatory NF-ΚB and pro-apoptotic P53, thereby alleviating sepsis-induced myocardial injury and dysfunction. Our data support the promise of LXR activation as an effective strategy for relieving heart septic injury.
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Affiliation(s)
- Dong Han
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China; Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xiang Li
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China; Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Shuang Li
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China; Department of Cardiology, Chengdu Military General Hospital, Chengdu, China, 610083
| | - Tao Su
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Li Fan
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China
| | - Wen-Si Fan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hong-Yu Qiao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jiang-Wei Chen
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Miao-Miao Fan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xiu-Juan Li
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Ya-Bin Wang
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China
| | - Sai Ma
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Ya Qiu
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China
| | - Zu-Hong Tian
- Department of Gastroenterology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Feng Cao
- National Clinical Research Center for Geriatric Diseases & Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China; Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
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Cheng Y, Zhang D, Zhu M, Wang Y, Guo S, Xu B, Hou G, Feng Y, Liu G. Liver X receptor α is targeted by microRNA-1 to inhibit cardiomyocyte apoptosis through a ROS-mediated mitochondrial pathway. Biochem Cell Biol 2017; 96:11-18. [PMID: 29024600 DOI: 10.1139/bcb-2017-0154] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is defined as ventricular dysfunction occurring independently of a recognized cause such as hypertension or coronary artery disease. Liver X receptor α (LXRα), a subtype of ligand-activated transcription factors LXRs, has been considered as a potential pharmacological target in the pathogenesis of cardiovascular and metabolic diseases. However, the potential mechanism of how LXRα is regulated in cardiomyocytes is still unclear. This study investigated the effect of activating LXRα with GW3965 on cardiomyocyte apoptosis and its upstream regulator in glucose-induced H9C2 cells. Our data indicated that GW3965 up-regulated the expression of LXRα, inhibited cardiomyocyte apoptosis, and altered the apoptosis-related proteins in glucose-induced H9C2 cells. In addition, GW3965 restored the mitochondrial membrane potential level and decreased the ROS production induced by glucose. Moreover, LXRα was confirmed as a direct target of microRNA-1 (miR-1) that was involved in cardiomyocyte apoptosis of DCM, and overexpression of miR-1 abrogated the inhibiting effect of GW3965 on glucose-induced apoptosis in H9C2 cells. This study highlights an important role of LXRα in the development of DCM and brings new insights into the complex mechanisms involved in the pathogenesis of DCM.
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Affiliation(s)
- Yongxia Cheng
- a Department of Pathology, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Dawei Zhang
- b Department of Anatomy, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Min Zhu
- c Department of Medical Imaging, Hongqi Hospital, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Ying Wang
- b Department of Anatomy, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Sufen Guo
- a Department of Pathology, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Biao Xu
- d Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Guangyu Hou
- e Department of Medical Function, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Yukuan Feng
- b Department of Anatomy, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
| | - Guibo Liu
- b Department of Anatomy, Mudanjiang Medical College, Mudanjiang, Heilongjiang Province 157011, People's Republic of China
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Li D, Du Y, Yuan X, Han X, Dong Z, Chen X, Wu H, Zhang J, Xu L, Han C, Zhang M, Xia Q. Hepatic hypoxia-inducible factors inhibit PPARα expression to exacerbate acetaminophen induced oxidative stress and hepatotoxicity. Free Radic Biol Med 2017; 110:102-116. [PMID: 28583670 DOI: 10.1016/j.freeradbiomed.2017.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 05/31/2017] [Accepted: 06/01/2017] [Indexed: 01/25/2023]
Abstract
Oxidative stress has a critical role in the pathogenesis of acetaminophen (APAP) induced hepatocellular necrosis, and the identification of novel approaches to attenuate oxidative stress is essential to prevent/revert the disease. This study investigated the role of both HIF-1 and HIF-2 in the pathogenesis of APAP-induced oxidative stress, as well as the underlying mechanisms. In the present study, we initially found that knockout of HIF-1α or HIF-2α reduced APAP toxicity, and double knockout afforded the best protection. APAP treatment led to stabilization of both HIF-1α and HIF-2α in mouse livers. Moreover, the protective effects of HIF deficiency were related to the attenuated oxidative stress. Further experiments proved that PPARα, a master regulator in cellular metabolism accounted for the HIF deficiency-caused protective impact on APAP toxicity. Inactivation of HIFs promoted the expression of peroxisome proliferator-activated receptor α (PPARα) in the liver, which in turn activated nuclear factor erythroid 2-related factor 2 (Nrf2). Knockdown of PPARα or Nrf2 negated the hepatoprotection afforded by HIF deficiency. At last,examination of the PPARα promoter identified a HIF-binding site and HIF-dependent repression of PPARα in hepatocytes by luciferase reporter and EMSA study. Taken together, Our results demonstrate that HIFs are key suppressors of PPARα in the liver, thereby compromising the adaptive defense mechanisms against oxidative stress when confronted with APAP. These findings are important to the etiology and therapeutics of APAP hepatotoxicity. The functional link between HIFs and PPARα may have more implications in liver physiology and other pathologic conditions than APAP injury.
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Affiliation(s)
- Dawei Li
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yingdong Du
- Department of Hepatic Surgery, PLA No.107 hospital, Yantai, China
| | - Xiaodong Yuan
- Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxiao Han
- Department of Biomaterials, School of Material, University of Manchester, United Kingdom
| | - Zhen Dong
- Transplantation Center of the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaosong Chen
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Haoyu Wu
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianjun Zhang
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Longmei Xu
- The Central Laboratory of Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Conghui Han
- Department of Urology, Xuzhou Central Hospital, Xuzhou Medical University School of Clinical Medicine, Xuzhou, China
| | - Ming Zhang
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Qiang Xia
- Department of Transplantation and Hepatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Ravindran S, Kurian GA. The role of secretory phospholipases as therapeutic targets for the treatment of myocardial ischemia reperfusion injury. Biomed Pharmacother 2017; 92:7-16. [DOI: 10.1016/j.biopha.2017.05.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 04/27/2017] [Accepted: 05/08/2017] [Indexed: 01/22/2023] Open
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Gong Y, Yang Y, Wu Q, Gao G, Liu Y, Xiong Y, Huang C, Wu S. Activation of LXRα improves cardiac remodeling induced by pulmonary artery hypertension in rats. Sci Rep 2017; 7:6169. [PMID: 28733583 PMCID: PMC5522383 DOI: 10.1038/s41598-017-04640-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/17/2017] [Indexed: 12/25/2022] Open
Abstract
Inflammatory factors regulated by NF-κB play a significant role in PAH and myocardial hypertrophy. LXR activation may inhibit myocardial hypertrophy via suppressing inflammatory pathways; it is unknown whether LXR is also involved in PAH-induced myocardial hypertrophy or remodeling. To further explore the protective effect of LXR in PAH-induced cardiac hypertrophy and remodeling, a PAH model was developed, and T0901317, an agonist of LXR, was used to examine the effect of LXR activation. PAH rats demonstrated obvious cardiac hypertrophy and remodeling in the right ventricle, but significant improvement of cardiac hypertrophy and remodeling was observed in PAH rats treated with T0901317. Through RT-PCR, Western blot and ELISA examination, NF-κB, IL-6, TNF-α, and iNOS were found to be significantly reduced in PAH rats treated with T0901317 compared to PAH rats treated with DMSO. Apoptosis was also significantly reduced in PAH rats treated with T0901317. Thus, LXR activation may inhibit PAH-induced cardiac hypertrophy and remodeling by inhibiting NF-κB-mediated inflammatory pathways.
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Affiliation(s)
- Yibo Gong
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yifeng Yang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qin Wu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ge Gao
- Faculty of Laboratory Medicine, Xiangya Medical College, Central South University, Changsha, China
| | - Yin Liu
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yaoyao Xiong
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Can Huang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Sijie Wu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China.
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Fessler MB. The challenges and promise of targeting the Liver X Receptors for treatment of inflammatory disease. Pharmacol Ther 2017; 181:1-12. [PMID: 28720427 DOI: 10.1016/j.pharmthera.2017.07.010] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The Liver X Receptors (LXRs) are oxysterol-activated transcription factors that upregulate a suite of genes that together promote coordinated mobilization of excess cholesterol from cells and from the body. The LXRs, like other nuclear receptors, are anti-inflammatory, inhibiting signal-dependent induction of pro-inflammatory genes by nuclear factor-κB, activating protein-1, and other transcription factors. Synthetic LXR agonists have been shown to ameliorate atherosclerosis and a wide range of inflammatory disorders in preclinical animal models. Although this has suggested potential for application to human disease, systemic LXR activation is complicated by hepatic steatosis and hypertriglyceridemia, consequences of lipogenic gene induction in the liver by LXRα. The past several years have seen the development of multiple advanced LXR therapeutics aiming to avoid hepatic lipogenesis, including LXRβ-selective agonists, tissue-selective agonists, and transrepression-selective agonists. Although several synthetic LXR agonists have made it to phase I clinical trials, none have progressed due to unforeseen adverse reactions or undisclosed reasons. Nonetheless, several sophisticated pharmacologic strategies, including structure-guided drug design, cell-specific drug targeting, as well as non-systemic drug routes have been initiated and remain to be comprehensively explored. In addition, recent studies have identified potential utility for targeting the LXRs during therapy with other agents, such as glucocorticoids and rexinoids. Despite the pitfalls encountered to date in translation of LXR agonists to human disease, it appears likely that this accelerating field will ultimately yield effective and safe applications for LXR targeting in humans.
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Affiliation(s)
- Michael B Fessler
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, P.O. Box 12233, MD D2-01, Research Triangle Park, NC 27709, United States.
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Deng YL, Zhao JY, Yao JH, Tang Q, Zhang L, Zhou HL, Zhang CT, Lv JG, Quan XQ. Verapamil suppresses cardiac alternans and ventricular arrhythmias in acute myocardial ischemia via ryanodine receptor inhibition. Am J Transl Res 2017; 9:2712-2722. [PMID: 28670363 PMCID: PMC5489875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 05/16/2017] [Indexed: 06/07/2023]
Abstract
T-wave alternans (TWA) is a potent arrhythmia substrate under the conditions of acute myocardial ischemia. Abnormal intracellular calcium cycling contributes to the genesis of cardiac alternans. Ryanodine receptor (RyR) is a pivotal Ca2+ cycling protein central to Ca2+ signaling in the heart. Here, we investigated the potential role of RyR in cardiac alternans and ventricular arrhythmias in acute myocardial ischemia. Transmembrane action potentials were simultaneously recorded from epicardium and endocardium together with a transmural ECG and isometric contraction force in the arterially perfused left ventricular wedge preparations. Calcium alternans were induced by incremental frequency of field stimulation in rat ventricular myocytes. TWA, mechanical alternans and ventricular arrhythmias were reproducibly induced by rapid pacing in the acute ischemic wedge preparations. Compared with control group, calcium alternans ratio and spontaneous calcium release were increased in acute ischemic myocytes. Verapamil, a phenylalkylamine calcium channel blocker, can successfully abolish spontaneous calcium release, TWA, and ventricular arrhythmias. The inhibition effect of verapamil could be diminished by low concentration of ryanodine (10 nmol/L). However, nifedipine, a dihydropyridine calcium channel blocker, could not block TWA or arrhythmias. Moreover, verapamil, but not nifedipine, significantly decreased ROS production in ischemic myocytes. Collectively, our results indicate that verapamil can significantly inhibit the development of cardiac alternans and ventricular arrhythmias in acute myocardial ischemia, and the mechanism was related to the inhibition of RyR and the protective function to oxidative stress.
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Affiliation(s)
- Yu-Lei Deng
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Jun-Yan Zhao
- Department of Cardiology, Yuhuangding HospitalYantai 264000, China
| | - Ji-Hua Yao
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
- Department of Cardiology, Tongjishenzhi HospitalWuhan 430030, China
| | - Qiang Tang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Le Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Hong-Lian Zhou
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Cun-Tai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Jia-Gao Lv
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
| | - Xiao-Qing Quan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, China
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Gao J, Liu X, Wang B, Xu H, Xia Q, Lu T, Wang F. Farnesoid X receptor deletion improves cardiac function, structure and remodeling following myocardial infarction in mice. Mol Med Rep 2017; 16:673-679. [PMID: 28560412 PMCID: PMC5482148 DOI: 10.3892/mmr.2017.6643] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 02/20/2017] [Indexed: 12/28/2022] Open
Abstract
The farnesoid X receptor (FXR) is implicated in cholesterol and bile acid homeostasis; however, its role following myocardial infarction (MI) has yet to be elucidated. The aim of the present study was to investigate the effects of FXR knockout on left ventricular (LV) remodeling following MI. Coronary arteries of wild type (WT) and FXR‑/‑ mice were permanently occluded to cause MI, and serial echocardiographic and histological tests were conducted. At 4 weeks post‑MI, FXR‑/‑ mice exhibited significantly smaller infarct sizes (34.20±2.58 vs. 44.20±3.19%), improved ejection fraction (47.31±1.08 vs. 37.64±0.75%) and reduced LV chamber dilation compared with WT mice. LV remodeling was significant as early as 7 days post‑MI in FXR‑/‑ compared with WT mice. Histological features associated with enhanced long‑term remodeling and improved functionality, such as increased angiogenesis via detection of CD31 and reduced fibrosis, were observed in the FXR‑/‑ group. Myocyte apoptosis within the infarcted zones appeared significantly reduced by day 7 in FXR‑/‑ mice. In conclusion, the results of the present study suggested that FXR knockout may participate in the preservation of post‑MI cardiac functionality, via reducing fibrosis and chronic apoptosis, and ameliorating ventricular function.
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Affiliation(s)
- Jianshu Gao
- Department of Cardiology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Xiaoqiang Liu
- Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Bingjian Wang
- Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Haiyan Xu
- Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Qiang Xia
- Department of Transplantation and Hepatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Tianfei Lu
- Department of Transplantation and Hepatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Fang Wang
- Department of Cardiology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
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Ji Q, Zhao Y, Yuan A, Pu J, He B. Deficiency of liver-X-receptor-α reduces glucose uptake and worsens post-myocardial infarction remodeling. Biochem Biophys Res Commun 2017; 488:489-495. [PMID: 28511797 DOI: 10.1016/j.bbrc.2017.05.072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/12/2017] [Indexed: 12/15/2022]
Abstract
Liver X receptor α (LXRα) is an endogenous protective receptor against ischemic heart diseases. However, whether LXRα regulated glucose metabolism in ischemic heart diseases has not been investigated. In this study we investigated the involvement of LXRα on glucose metabolism in cardiac remodeling after myocardial infarction (MI). MI was induced in mice by permanent ligation of the left anterior descending coronary artery (LCA). Genetic LXRα deletion significantly worsened cardiac remodeling and impaired cardiac function at 4 weeks after MI. Cardiac 18F-fluorodeoxyglucose (FDG) uptake by positron emission tomography (PET) demonstrated that the FDG standardized uptake value (SUV) was significantly lower in LXRα-/- mice as compared to WT mice. Mechanistically, GLUT1/4 and AMPK phosphorylation were significantly downregulated while CD36 expression was markedly upregulated in LXRα-/- mice. This study demonstrated that deficiency of LXRα decreased glucose uptake after MI, resulting in a metabolic shift that suppressed glucose metabolism, which was in association with adverse cardiac remodeling.
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Affiliation(s)
- Qingqi Ji
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Yichao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Ancai Yuan
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China.
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China.
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48
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Liver X Receptor Agonist TO901317 Attenuates Paraquat-Induced Acute Lung Injury through Inhibition of NF- κB and JNK/p38 MAPK Signal Pathways. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4652695. [PMID: 28480221 PMCID: PMC5396433 DOI: 10.1155/2017/4652695] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/13/2017] [Accepted: 03/01/2017] [Indexed: 12/31/2022]
Abstract
Paraquat (PQ) is a widely used herbicide with extremely high poisoning mortality mostly from acute lung injury (ALI) or progressive pulmonary fibrosis. Toxicity mechanisms remain unclear, but a redox cycling process that generates reactive oxygen species (ROS) is involved, as are inflammation and cell apoptosis. We established an ALI mouse model by intraperitoneal injection of PQ (28 mg/kg) and then investigated the effects of a potent liver X receptor (LXR) agonist, TO901317 (5 or 20 mg/kg), injected intraperitoneally 30 min after PQ administration. Poisoned mice exhibited severe lung tissue lesions and edema, significant neutrophilic (PMNs) infiltration, and release of the proinflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β). PQ administration also decreased activity of antioxidases, including superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferases (GSTs), and increased lipid peroxidation as evaluated by malondialdehyde (MDA) levels. PQ exposure induced upregulation of the proapoptotic gene Bax and downregulation of the antiapoptotic gene Bcl-2, leading to marked cell apoptosis in the lung tissues. TO901317 treatment reversed all these effects through inhibition of PQ-induced nuclear factor kappa B (NF-κB) and JNK/p38 mitogen-activated protein kinase (MAPK) activation. The LXR agonist TO901317 had potent antioxidant, anti-inflammatory, and antiapoptotic effects against PQ-induced ALI.
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49
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Zhao Y, Xu L, Ding S, Lin N, Ji Q, Gao L, Su Y, He B, Pu J. Novel protective role of the circadian nuclear receptor retinoic acid-related orphan receptor-α in diabetic cardiomyopathy. J Pineal Res 2017; 62. [PMID: 27862268 DOI: 10.1111/jpi.12378] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 11/15/2016] [Indexed: 12/11/2022]
Abstract
Diabetic cardiomyopathy is a major complication that significantly contributes to morbidity and mortality in diabetics with few therapies. Moreover, antidiabetic drugs reported inconsistent or even adverse cardiovascular effects, suggesting that it is important to exploit novel therapeutic targets against diabetic cardiomyopathy. Here, we observed that the nuclear melatonin receptor, the retinoic acid-related orphan receptor-α (RORα), was downregulated in diabetic hearts. By utilizing a mouse line with RORα disruption, we demonstrated that RORα deficiency led to significantly augmented diastolic dysfunction and cardiac remodeling induced by diabetes. Microscopic and molecular analyses further indicated that the detrimental effects of RORα deficiency were associated with aggravated myocardial apoptosis, autophagy dysfunction, and oxidative stress by disrupting antioxidant gene expression. By contrast, restoration of cardiac RORα levels in transgenic mice significantly improved cardiac functional and structural parameters at 8 weeks after diabetes induction. Consistent with genetic manipulation, pharmacological activation of RORα by melatonin and SR1078 (a synthetic agonist) showed beneficial effects against diabetic cardiomyopathy, while the RORα inhibitor SR3335 significantly exacerbated cardiac impairments in diabetic mice. Collectively, these findings suggest that cardiac-targeted manipulation of nuclear melatonin receptor RORα may hold promise for delaying diabetic cardiomyopathy development.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Apoptosis/genetics
- Autophagy/drug effects
- Autophagy/genetics
- Benzamides/pharmacology
- Diabetic Cardiomyopathies/drug therapy
- Diabetic Cardiomyopathies/genetics
- Diabetic Cardiomyopathies/metabolism
- Diabetic Cardiomyopathies/pathology
- Mice
- Mice, Mutant Strains
- Myocardium/metabolism
- Myocardium/pathology
- Nuclear Receptor Subfamily 1, Group F, Member 1/agonists
- Nuclear Receptor Subfamily 1, Group F, Member 1/antagonists & inhibitors
- Nuclear Receptor Subfamily 1, Group F, Member 1/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 1/metabolism
- Oxidative Stress/drug effects
- Oxidative Stress/genetics
- Receptors, Melatonin/genetics
- Receptors, Melatonin/metabolism
- Sulfonamides/pharmacology
- Thiophenes/pharmacology
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Affiliation(s)
- Yichao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Longwei Xu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Song Ding
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Lin
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingqi Ji
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lingchen Gao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuanyuan Su
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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50
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Zhao YC, Xu LW, Ding S, Ji QQ, Lin N, He Q, Gao LC, Su YY, Pu J, He B. Nuclear receptor retinoid-related orphan receptor α deficiency exacerbates high-fat diet-induced cardiac dysfunction despite improving metabolic abnormality. Biochim Biophys Acta Mol Basis Dis 2016; 1863:1991-2000. [PMID: 27825849 DOI: 10.1016/j.bbadis.2016.10.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/08/2016] [Accepted: 10/31/2016] [Indexed: 01/16/2023]
Abstract
Retinoid-related orphan receptor α (RORα), a member of the metabolic nuclear receptor superfamily, plays a vital regulatory role in circadian rhythm and metabolism. Here, we investigated the role of RORα in high-fat diet (HFD)-induced cardiac impairments and the underlying mechanisms involved. RORα-deficient stagger mice (sg/sg) and wild type (WT) littermates were fed with either standard diet or HFD. At 20weeks after HFD treatment, RORα deficiency resulted in significantly decreased body weight gain, improved dyslipidemia and ameliorated insulin resistance (evaluated by blood biochemical and glucose/insulin tolerance tests) compared with WT control. However, compared with HFD-treated WT mice, HFD-treated sg/sg mice exhibited significantly augmented myocardial hypertrophy, cardiac fibrosis (wheat germ agglutinin, masson trichrome and sirius red staining) and cardiac dysfunction (echocardiography and hemodynamics). Mechanistically, RORα deficiency impaired mitochondrial biogenesis and function. Additionally, RORα deficiency resulted in inhibition of the AMPK-PGC1α signaling pathway. In contrast, cardiomyocyte-specific RORα overexpression ameliorated myocardial hypertrophy, fibrosis and dysfunction by restoring AMPK-PGC1α signaling, and subsequently normalizing mitochondrial biogenesis. These findings demonstrated for the first time that nuclear receptor RORα deficiency aggravated HFD-induced myocardial dysfunction at least in part by impairing mitochondrial biogenesis in association with disrupting AMPK-PGC1α signaling. This article is part of a Special Issue entitled: Genetic and epigenetic control of heart failure - edited by Jun Ren and Megan Yingmei Zhang.
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Affiliation(s)
- Yi-Chao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Long-Wei Xu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Song Ding
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Qing-Qi Ji
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Nan Lin
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Qing He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Ling-Chen Gao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Yuan-Yuan Su
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China
| | - Jun Pu
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China.
| | - Ben He
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 PuJian Road, Shanghai 200127, China.
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