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Xue Q, Zhang Q, Guo Z, Wu L, Chen Y, Chen Z, Yang K, Cao J. Therapeutic Hypothermia Inhibits Hypoxia-Induced Cardiomyocyte Apoptosis Via the MiR-483-3p/Cdk9 Axis. J Am Heart Assoc 2023; 12:e026160. [PMID: 36789845 PMCID: PMC10111479 DOI: 10.1161/jaha.122.026160] [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] [Indexed: 02/16/2023]
Abstract
Background Therapeutic hypothermia has a beneficial effect on cardiac function after acute myocardial infarction, but the exact mechanism is still unclear. Recent research has suggested that microRNAs participate in acute myocardial infarction to regulate cardiomyocyte survival. This study aimed to explore the ability of hypothermia-regulated microRNA-483-3p (miR-483-3p) to inhibit hypoxia-induced myocardial infarction. Methods and Results Primary cardiomyocytes were cultured under hypoxia at 32 °C to mimic therapeutic hypothermia, and the differentially expressed microRNAs were determined by RNA sequencing. Therapeutic hypothermia recovered hypoxia-induced increases in apoptosis, decreases in ATP levels, and decreases in miR-483-3p expression. Overexpression of miR-483-3p exhibited effects similar to those of therapeutic hypothermia on hypoxia in the treatment of cardiomyocytes to associate with maintaining the mitochondrial membrane potential, and cyclin-dependent kinase 9 (Cdk9) was identified as a target gene with downregulated expression by miR-483-3p. Knockdown of Cdk9 also promoted cardiac survival, ATP production, and mitochondrial membrane potential stability under hypoxia. In vivo, the expression of miR-483-3p and Cdk9 was tested in the cardiac tissue of the mice with acute myocardial infarction, and the expression of miR-483-3p decreased and Cdk9 increased in the region of myocardial infarction. However, miR-483-3p was overexpressed with lentivirus, which suppressed apoptosis, infarct size (miR-483-3p, 22.00±4.04% versus negative control, 28.57±5.44%, P<0.05), and Cdk9 expression to improve cardiac contractility. Conclusions MiR-483-3p antagonizes hypoxia, leading to cardiomyocyte injury by targeting Cdk9, which is a new mechanism of therapeutic hypothermia.
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Affiliation(s)
- Qiqi Xue
- Department of Geriatrics Ruijin Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
| | - Qianru Zhang
- Department of Cardiology Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
| | - Zhenzhen Guo
- Department of Cardiovascular Medicine Ruijin Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
| | - Liping Wu
- Department of Cardiac Imaging Center The First Affiliated Hospital, Auhui Medical University Hefei China
| | - Yafen Chen
- Shanghai Institute of Cardiovascular Diseases Zhongshan Hospital, Fudan University Shanghai China
| | - Zhongli Chen
- State Key Laboratory of Cardiovascular Disease Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Ke Yang
- Department of Cardiovascular Medicine Ruijin Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
| | - Jiumei Cao
- Department of Geriatrics Ruijin Hospital, Shanghai Jiaotong University School of Medicine Shanghai China
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2
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Castilla R, Ruffa FV, Bancalari I, Fernández Vivanco M, Lallopizzo C, Torasso N, Farcy N, Gutierrez C, Bonazzolaa P. Cobalt chloride postconditioning as myoprotective therapy in cardiac ischemia-reperfusion. Pflugers Arch 2022; 474:743-752. [PMID: 35585327 DOI: 10.1007/s00424-022-02703-w] [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: 01/10/2022] [Revised: 03/11/2022] [Accepted: 05/03/2022] [Indexed: 11/24/2022]
Abstract
Since damage induced by ischemia-reperfusion (I/R) involves alterations in Ca2+ homeostasis and is reduced by ischemic postconditioning (IP) and that CoCl2 can trigger changes resembling the response to a hypoxic event in normoxia and its blockade on Ca2+ current in heart muscle, our aim was to evaluate CoCl2 as an IP therapeutic tool. Mechanic and energetic parameters of isolated and arterially perfused male Wistar rat heart ventricles were simultaneously analyzed in a model of I/R in which 0.23 mmol/L CoCl2 was introduced upon reperfusion and kept or withdrawn after 20 min or introduced after 20 min of reperfusion. The presence of CoCl2 did not affect diastolic pressure but increased post-ischemic contractile recovery, which peaked at 20 min and decreased at the end of reperfusion. This decrease was prevented when CoCl2 was removed at 20 min of reperfusion. Total heat release increased throughout reperfusion, while economy increased between 15 and 25 min. No effect was observed when CoCl2 was introduced at 20 min of reperfusion. In addition, both the area under the contracture curve evoked by 10 mmol/L caffeine-36 mmol/L Na+ and the contracture tension relaxation rate were higher with CoCl2.Furthermore, CoCl2 decreased the number of arrhythmias during reperfusion and the ventricular damaged area. The presence of CoCl2 in reperfusion induces cardioprotection consistent with the improvement in cellular calcium handling. The use of CoCl2 constitutes a potential cardioprotective tool of clinical relevance.
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Affiliation(s)
- Rocío Castilla
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina.
| | - Facundo Vigón Ruffa
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Ignacio Bancalari
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Mercedes Fernández Vivanco
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Carla Lallopizzo
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Nicolás Torasso
- Facultad de Ciencias Exactas Y Naturales, Instituto de Física de Buenos Aires (IFIBA-CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Nicole Farcy
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Christopher Gutierrez
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
| | - Patricia Bonazzolaa
- CONICET, Instituto Alberto C Taquini de Investigaciones en Medicina Traslacional (IATIMET) C1122AAJ, Universidad de Buenos Aires, Marcelo T. de Alvear, 2270- C1122AAJ, Buenos Aires, Argentina
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3
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Yapa Abeywardana M, Samarasinghe KTG, Munkanatta Godage D, Ahn YH. Identification and Quantification of Glutathionylated Cysteines under Ischemic Stress. J Proteome Res 2021; 20:4529-4542. [PMID: 34382403 DOI: 10.1021/acs.jproteome.1c00473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ischemia reperfusion injury contributes to adverse cardiovascular diseases in part by producing a burst of reactive oxygen species that induce oxidations of many muscular proteins. Glutathionylation is one of the major protein cysteine oxidations that often serve as molecular mechanisms behind the pathophysiology associated with ischemic stress. Despite the biological significance of glutathionylation in ischemia reperfusion, identification of specific glutathionylated cysteines under ischemic stress has been limited. In this report, we have analyzed glutathionylation under oxygen-glucose deprivation (OGD) or repletion of nutrients after OGD (OGD/R) by using a clickable glutathione approach that specifically detects glutathionylated proteins. Our data find that palmitate availability induces a global level of glutathionylation and decreases cell viability during OGD/R. We have then applied a clickable glutathione-based proteomic quantification strategy, which enabled the identification and quantification of 249 glutathionylated cysteines in response to palmitate during OGD/R in the HL-1 cardiomyocyte cell line. The subsequent bioinformatic analysis found 18 glutathionylated cysteines whose genetic variants are associated with muscular disorders. Overall, our data report glutathionylated cysteines under ischemic stress that may contribute to adverse outcomes or muscular disorders.
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Affiliation(s)
| | | | | | - Young-Hoon Ahn
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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4
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Lillo-Moya J, Rojas-Solé C, Muñoz-Salamanca D, Panieri E, Saso L, Rodrigo R. Targeting Ferroptosis against Ischemia/Reperfusion Cardiac Injury. Antioxidants (Basel) 2021; 10:antiox10050667. [PMID: 33922912 PMCID: PMC8145541 DOI: 10.3390/antiox10050667] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
Ischemic heart disease is a leading cause of death worldwide. Primarily, ischemia causes decreased oxygen supply, resulting in damage of the cardiac tissue. Naturally, reoxygenation has been recognized as the treatment of choice to recover blood flow through primary percutaneous coronary intervention. This treatment is the gold standard therapy to restore blood flow, but paradoxically it can also induce tissue injury. A number of different studies in animal models of acute myocardial infarction (AMI) suggest that ischemia-reperfusion injury (IRI) accounts for up to 50% of the final myocardial infarct size. Oxidative stress plays a critical role in the pathological process. Iron is an essential mineral required for a variety of vital biological functions but also has potentially toxic effects. A detrimental process induced by free iron is ferroptosis, a non-apoptotic type of programmed cell death. Accordingly, efforts to prevent ferroptosis in pathological settings have focused on the use of radical trapping antioxidants (RTAs), such as liproxstatin-1 (Lip-1). Hence, it is necessary to develop novel strategies to prevent cardiac IRI, thus improving the clinical outcome in patients with ischemic heart disease. The present review analyses the role of ferroptosis inhibition to prevent heart IRI, with special reference to Lip-1 as a promising drug in this clinicopathological context.
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Affiliation(s)
- José Lillo-Moya
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile; (J.L.-M.); (C.R.-S.); (D.M.-S.)
| | - Catalina Rojas-Solé
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile; (J.L.-M.); (C.R.-S.); (D.M.-S.)
| | - Diego Muñoz-Salamanca
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile; (J.L.-M.); (C.R.-S.); (D.M.-S.)
| | - Emiliano Panieri
- Department of Physiology and Pharmacology “Vittorio Erspamer“, Faculty of Pharmacy and Medicine Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (L.S.)
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer“, Faculty of Pharmacy and Medicine Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (L.S.)
| | - Ramón Rodrigo
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile; (J.L.-M.); (C.R.-S.); (D.M.-S.)
- Correspondence:
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5
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Song L, Zhang ZF, Hu LK, Zhang PH, Cao ZZ, Liu ZP, Zhang PP, Ma JH. Curcumin, a Multi-Ion Channel Blocker That Preferentially Blocks Late Na + Current and Prevents I/R-Induced Arrhythmias. Front Physiol 2020; 11:978. [PMID: 32973546 PMCID: PMC7472421 DOI: 10.3389/fphys.2020.00978] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/20/2020] [Indexed: 11/13/2022] Open
Abstract
Increasing evidence shows that Curcumin (Cur) has a protective effect against cardiovascular diseases. However, the role of Cur in the electrophysiology of cardiomyocytes is currently not entirely understood. Therefore, the present study was conducted to investigate the effects of Cur on the action potential and transmembrane ion currents in rabbit ventricular myocytes to explore its antiarrhythmic property. The whole-cell patch clamp was used to record the action potential and ion currents, while the multichannel acquisition and analysis system was used to synchronously record the electrocardiogram and monophasic action potential. The results showed that 30 μmol/L Cur shortened the 50 and 90% repolarization of action potential by 17 and 7%, respectively. In addition, Cur concentration dependently inhibited the Late-sodium current (I Na.L), Transient-sodium current (I Na.T), L-type calcium current (I Ca.L), and Rapidly delayed rectifying potassium current (I Kr), with IC50 values of 7.53, 398.88, 16.66, and 9.96 μmol/L, respectively. Importantly, the inhibitory effect of Cur on I Na.L was 52.97-fold higher than that of I Na.T. Moreover, Cur decreased ATX II-prolonged APD, suppressed the ATX II-induced early afterdepolarization (EAD) and Ca2+-induced delayed afterdepolarization (DAD) in ventricular myocytes, and reduced the occurrence and average duration of ventricular tachycardias and ventricular fibrillations induced by ischemia-reperfusion injury. In conclusion, Cur inhibited I Na.L, I Na.T, I Ca.L, and I Kr; shortened APD; significantly suppressed EAD and DAD-like arrhythmogenic activities at the cellular level; and exhibited antiarrhythmic effect at the organ level. It is first revealed that Cur is a multi-ion channel blocker that preferentially blocks I Na.L and may have potential antiarrhythmic property.
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Affiliation(s)
- Lv Song
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Ze-Fu Zhang
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Liang-Kun Hu
- Tianyou Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Pei-Hua Zhang
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Zhen-Zhen Cao
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Zhi-Pei Liu
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Pei-Pei Zhang
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
| | - Ji-Hua Ma
- Cardio-Electrophysiological Research Laboratory, Medical College of Wuhan University of Science and Technology, Wuhan, China.,College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College of Wuhan University of Science and Technology, Wuhan, China
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6
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Araibi H, van der Merwe E, Gwanyanya A, Kelly-Laubscher R. The effect of sphingosine-1-phosphate on the endothelial glycocalyx during ischemia-reperfusion injury in the isolated rat heart. Microcirculation 2020; 27:e12612. [PMID: 32017300 DOI: 10.1111/micc.12612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/24/2020] [Accepted: 01/30/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Sphingosine-1-phosphate is a natural metabolite that is cardioprotective, but its effects on endothelial glycocalyx damage during ischemia-reperfusion are unknown. Therefore, we investigated the effect of sphingosine-1-phosphate on the endothelial glycocalyx during ischemia-reperfusion. METHODS Isolated hearts from Wistar rats were perfused on a Langendorff system with Krebs-Henseleit buffer and pretreated with sphingosine-1-phosphate (10 nmol/L) before ischemia-reperfusion. Infarct size was measured by triphenyl tetrazolium chloride staining (n ≥ 6 per group). Cardiac edema was assessed by calculating total water content (n = 7 per group) and histologically quantifying the interstitial compartment (n ≥ 3 per group). The post-ischemic coronary release of syndecan-1 was quantified using ELISA. Syndecan-1 immunostaining intensity was assessed in perfusion-fixed hearts (n ≥ 3 per group). RESULTS Pretreatment with sphingosine-1-phosphate decreased infarct size in isolated hearts subjected to ischemia-reperfusion (P = .01 vs ischemia-reperfusion). However, sphingosine-1-phosphate had no effect on syndecan-1 levels in the coronary effluent or on the intensity of the syndecan-1 immunostaining signal in cardiac tissue. Heart total water content was not significantly different between control and ischemic groups but was significantly decreased in hearts treated with sphingosine-1-phosphate alone. CONCLUSION These results suggest that sphingosine-1-phosphate-induced cardioprotection against ischemia-reperfusion injury is not mediated by the maintenance of syndecan-1 in the endothelial glycocalyx.
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Affiliation(s)
- Hala Araibi
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Elizabeth van der Merwe
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Asfree Gwanyanya
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Roisin Kelly-Laubscher
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Department of Biological Sciences, Faculty of Science, University of Cape Town, Cape Town, South Africa.,Department of Pharmacology & Therapeutics, The College of Medicine and Health, University College Cork, Cork, Ireland
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7
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Ma C, Xu Z, Lv H. Low n-6/ n-3 PUFA ratio improves inflammation and myocardial ischemic reperfusion injury. Biochem Cell Biol 2019; 97:621-629. [PMID: 31580709 DOI: 10.1139/bcb-2018-0342] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This study investigated the potential effect of n-6/n-3 polyunsaturated fatty acids (PUFA) on inflammation and myocardial ischemic reperfusion injury (MIRI) in rats, together with the underlying protective mechanisms, and screen out most effective ratio of n-6/n-3 within limits. The rats with pre-infarct treatment were distributed among 5 groups according to the n-6/n-3 ratio (36:1; 1:1, 5:1, 10:1, 50:1); for the post-infarct treatment, the rats were distributed among 6 groups, including the control group (36:1) which was subjected to a sham procedure; the model group (36:1); and 4 test groups (n-6/n-3 ratio: 1:1, 5:1, 10:1, 50:1). All of the rats were fed a purple perilla seed oil and safflower oil-based fatty emulsion. The serum levels of monocyte chemoattractant protein-1 (MCP-1), interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α were determined using enzyme-linked immunosorbent assay. Staining with triphenyl tetrazolium chloride, hematoxylin and eosin, or Masson's trichrome was performed for histological examination. Cardiomyocyte apoptosis was examined by TUNEL assay. Western blotting was performed to examine the expression levels of apoptosis-related proteins and signaling pathway proteins. Our data indicate that in both the pre-infarct treatment and post-infarct treatment, low ratios of n-6/n-3 PUFAs significantly inhibited the levels of serum inflammatory factors, the infarct size of MIRI rats, number of cardiomyocytes undergoing apoptosis, and the expression levels of caspase-3, Bcl-2, and Bax in the MIRI group. Thus a low ratio of n-6/n-3 PUFAs ameliorates inflammation and myocardial ischemic reperfusion injury.
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Affiliation(s)
- Caiyan Ma
- Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China.,Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China
| | - Zehang Xu
- Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China.,Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China
| | - Heng Lv
- Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China.,Cardiovascular Department, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, 310012, People's Republic of China
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8
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Chang JC, Hu WF, Lee WS, Lin JH, Ting PC, Chang HR, Shieh KR, Chen TI, Yang KT. Intermittent Hypoxia Induces Autophagy to Protect Cardiomyocytes From Endoplasmic Reticulum Stress and Apoptosis. Front Physiol 2019; 10:995. [PMID: 31447690 PMCID: PMC6692635 DOI: 10.3389/fphys.2019.00995] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/18/2019] [Indexed: 12/25/2022] Open
Abstract
Intermittent hypoxia (IH), characterized as cyclic episodes of short-period hypoxia followed by normoxia, occurs in many physiological and pathophysiological conditions such as pregnancy, athlete, obstructive sleep apnea, and asthma. Hypoxia can induce autophagy, which is activated in response to protein aggregates, in the proteotoxic forms of cardiac diseases. Previous studies suggested that autophagy can protect cells by avoiding accumulation of misfolded proteins, which can be generated in response to ischemia/reperfusion (I/R) injury. The objective of the present study was to determine whether IH-induced autophagy can attenuate endoplasmic reticulum (ER) stress and cell death. In this study, H9c2 cell line, rat primary cultured cardiomyocytes, and C57BL/6 male mice underwent IH with an oscillating O2 concentration between 4 and 20% every 30 min for 1-4 days in an incubator. The levels of LC3, an autophagy indicator protein and CHOP and GRP78 (ER stress-related proteins) were measured by Western blotting analyses. Our data demonstrated that the autophagy-related proteins were upregulated in days 1-3, while the ER stress-related proteins were downregulated on the second day after IH. Treatment with H2O2 (100 μM) for 24 h caused ER stress and increased the level of ER stress-related proteins, and these effects were abolished by pre-treatment with IH condition. In response to the autophagy inhibitor, the level of ER stress-related proteins was upregulated again. Taken together, our data suggested that IH could increase myocardial autophagy as an adaptive response to prevent the ER stress and apoptosis.
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Affiliation(s)
- Jui-Chih Chang
- Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Wei-Fen Hu
- Master Program in Medical Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Wen-Sen Lee
- Graduate Institute of Medical Sciences, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jian-Hong Lin
- PhD Program in Pharmacology and Toxicology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Pei-Ching Ting
- Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Huai-Ren Chang
- School of Medicine, Tzu Chi University, Hualien, Taiwan.,Division of Cardiology, Department of Internal Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Kun-Ruey Shieh
- School of Medicine, Tzu Chi University, Hualien, Taiwan.,Master Program in Medical Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Tsung-I Chen
- Center for Physical Education, College of Education and Communication, Tzu Chi University, Hualien, Taiwan.,Institute of Education, College of Education and Communication, Tzu Chi University, Hualien, Taiwan
| | - Kun-Ta Yang
- Master Program in Medical Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan
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9
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Nanoencapsulated Quercetin Improves Cardioprotection during Hypoxia-Reoxygenation Injury through Preservation of Mitochondrial Function. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7683051. [PMID: 31341535 PMCID: PMC6612997 DOI: 10.1155/2019/7683051] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/07/2019] [Accepted: 05/21/2019] [Indexed: 01/15/2023]
Abstract
The effective delivery of antioxidants to the cells is hindered by their high metabolization rate. In this work, quercetin was encapsulated in poly(lactic-co-glycolic) acid (PLGA) nanoparticles. They were characterized in terms of its physicochemical properties (particle size distribution, ζ-potential, encapsulation efficiency, quercetin release and biological interactions with cardiac cells regarding nanoparticle association, and internalization and protective capability against relevant challenges). A better delivery of quercetin was achieved when encapsulated versus free. When the cells were challenged with antimycin A, it resulted in lower mitochondrial O2− (4.65- vs. 5.69- fold) and H2O2 rate production (1.15- vs. 1.73- fold). Similarly, under hypoxia-reoxygenation injury, a better maintenance of cell viability was found (77 vs. 65%), as well as a reduction of thiol groups (~70 vs. 40%). Therefore, the delivery of encapsulated quercetin resulted in the preservation of mitochondrial function and ATP synthesis due to its improved oxidative stress suppression. The results point to the potential of this strategy for the treatment of oxidative stress-based cardiac diseases.
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10
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Lozano O, Torres-Quintanilla A, García-Rivas G. Nanomedicine for the cardiac myocyte: Where are we? J Control Release 2017; 271:149-165. [PMID: 29273321 DOI: 10.1016/j.jconrel.2017.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/12/2017] [Accepted: 12/17/2017] [Indexed: 02/08/2023]
Abstract
Biomedical achievements in the last few decades, leading to successful therapeutic interventions, have considerably improved human life expectancy. Nevertheless, the increasing load and the still suboptimal outcome for patients with cardiac dysfunction underlines the relevance of continuous research to develop novel therapeutics for these diseases. In this context, the field of nanomedicine has attracted a lot of attention due to the potential novel treatment possibilities, such as controlled and sustained release, tissue targeting, and drug protection from degradation. For cardiac myocytes, which constitute the majority of the heart by mass and are the contractile unit, new options have been explored in terms of the use of nanomaterials (NMs) for therapy, diagnosis, and tissue engineering. This review focuses on the advances of nanomedicine targeted to the cardiac myocyte: first presenting the NMs used and the principal cardiac myocyte-based afflictions, followed by an overview of key advances in the field, including NMs interactions with the cardiac myocyte, therapy delivery, diagnosis based on imaging, and tissue engineering for tissue repair and heart-on-a-chip devices.
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Affiliation(s)
- Omar Lozano
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Monterrey, Mexico; Centro de Investigación Biomédica, Hospital Zambrano-Hellion, Tecnologico de Monterrey, San Pedro Garza-García, Mexico.
| | - Alejandro Torres-Quintanilla
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Monterrey, Mexico
| | - Gerardo García-Rivas
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Monterrey, Mexico; Centro de Investigación Biomédica, Hospital Zambrano-Hellion, Tecnologico de Monterrey, San Pedro Garza-García, Mexico
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11
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Cuevas-Durán RE, Medrano-Rodríguez JC, Sánchez-Aguilar M, Soria-Castro E, Rubio-Ruíz ME, Del Valle-Mondragón L, Sánchez-Mendoza A, Torres-Narvaéz JC, Pastelín-Hernández G, Ibarra-Lara L. Extracts of Crataegus oxyacantha and Rosmarinus officinalis Attenuate Ischemic Myocardial Damage by Decreasing Oxidative Stress and Regulating the Production of Cardiac Vasoactive Agents. Int J Mol Sci 2017; 18:E2412. [PMID: 29135932 PMCID: PMC5713380 DOI: 10.3390/ijms18112412] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 10/31/2017] [Accepted: 11/11/2017] [Indexed: 12/11/2022] Open
Abstract
Numerous studies have supported a role for oxidative stress in the development of ischemic damage and endothelial dysfunction. Crataegus oxyacantha (Co) and Rosmarinus officinalis (Ro) extracts are polyphenolic-rich compounds that have proven to be efficient in the treatment of cardiovascular diseases. We studied the effect of extracts from Co and Ro on the myocardial damage associated with the oxidative status and to the production of different vasoactive agents. Rats were assigned to the following groups: (a) sham; (b) vehicle-treated myocardial infarction (MI) (MI-V); (c) Ro extract-treated myocardial infarction (MI-Ro); (d) Co extract-treated myocardial infarction (MI-Co); or (e) Ro+Co-treated myocardial infarction (MI-Ro+Co). Ro and Co treatments increased total antioxidant capacity, the expression of superoxide dismutase (SOD)-Cu2+/Zn2+, SOD-Mn2+, and catalase, with the subsequent decline of malondialdehyde and 8-hydroxy-2'-deoxyguanosine levels. The extracts diminished vasoconstrictor peptide levels (angiotensin II and endothelin-1), increased vasodilators agents (angiotensin 1-7 and bradikinin) and improved nitric oxide metabolism. Polyphenol treatment restored the left intraventricular pressure and cardiac mechanical work. We conclude that Ro and Co treatment attenuate morphological and functional ischemic-related changes by both an oxidant load reduction and improvement of the balance between vasoconstrictors and vasodilators.
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Affiliation(s)
- Raúl Enrique Cuevas-Durán
- Unidad Académica de Medicina Humana y Ciencias de la Salud, Universidad Autónoma de Zacatecas, Zacatecas 98000, Mexico.
| | - Juan Carlos Medrano-Rodríguez
- Unidad Académica de Medicina Humana y Ciencias de la Salud, Universidad Autónoma de Zacatecas, Zacatecas 98000, Mexico.
| | - María Sánchez-Aguilar
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Elizabeth Soria-Castro
- Department of Pathology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - María Esther Rubio-Ruíz
- Department of Physiology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Leonardo Del Valle-Mondragón
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Alicia Sánchez-Mendoza
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Juan Carlos Torres-Narvaéz
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Gustavo Pastelín-Hernández
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
| | - Luz Ibarra-Lara
- Department of Pharmacology, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, Tlalpan, Mexico City 14080, Mexico.
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12
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Casieri V, Matteucci M, Cavallini C, Torti M, Torelli M, Lionetti V. Long-term Intake of Pasta Containing Barley (1-3)Beta-D-Glucan Increases Neovascularization-mediated Cardioprotection through Endothelial Upregulation of Vascular Endothelial Growth Factor and Parkin. Sci Rep 2017; 7:13424. [PMID: 29044182 PMCID: PMC5647408 DOI: 10.1038/s41598-017-13949-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/03/2017] [Indexed: 01/17/2023] Open
Abstract
Barley (1-3)β-D-Glucan (BBG) enhances angiogenesis. Since pasta is very effective in providing a BBG-enriched diet, we hypothesized that the intake of pasta containing 3% BBG (P-BBG) induces neovascularization-mediated cardioprotection. Healthy adult male C57BL/6 mice fed P-BBG (n = 15) or wheat pasta (Control, n = 15) for five-weeks showed normal glucose tolerance and cardiac function. With a food intake similar to the Control, P-BBG mice showed a 109% survival rate (P < 0.01 vs. Control) after cardiac ischemia (30 min)/reperfusion (60 min) injury. Left ventricular (LV) anion superoxide production and infarct size in P-BBG mice were reduced by 62 and 35% (P < 0.0001 vs. Control), respectively. The capillary and arteriolar density of P-BBG hearts were respectively increased by 12 and 18% (P < 0.05 vs. Control). Compared to the Control group, the VEGF expression in P-BBG hearts was increased by 87.7% (P < 0.05); while, the p53 and Parkin expression was significantly increased by 125% and cleaved caspase-3 levels were reduced by 33% in P-BBG mice. In vitro, BBG was required to induce VEGF, p53 and Parkin expression in human umbelical vascular endothelial cells. Moreover, the BBG-induced Parkin expression was not affected by pifithrin-α (10 uM/7days), a p53 inhibitor. In conclusion, long-term dietary supplementation with P-BBG confers post-ischemic cardioprotection through endothelial upregulation of VEGF and Parkin.
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Affiliation(s)
| | - Marco Matteucci
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Claudia Cavallini
- ATTRE (Advanced Therapies and Tissue Regeneration) Laboratory, Innovation Accelerator CNR, Bologna, Italy
| | - Milena Torti
- Research and Development Unit, Pastificio Attilio Matromauro Granoro s.r.l, Corato, Italy
| | - Michele Torelli
- Research and Development Unit, Pastificio Attilio Matromauro Granoro s.r.l, Corato, Italy
| | - Vincenzo Lionetti
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy. .,UOS Anesthesia and Intensive Care, Fondazione Toscana "G. Monasterio", Pisa, Italy.
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13
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Bastakoty D, Saraswati S, Joshi P, Atkinson J, Feoktistov I, Liu J, Harris JL, Young PP. Temporary, Systemic Inhibition of the WNT/β-Catenin Pathway promotes Regenerative Cardiac Repair following Myocardial Infarct. ACTA ACUST UNITED AC 2016; 2. [PMID: 28042617 DOI: 10.16966/2472-6990.111] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AIMS The WNT/β-catenin pathway is temporarily activated in the heart following myocardial infarction (MI). Despite data from genetic models indicating both positive and negative roles for the WNT pathway depending on the model used, the effect of therapeutic inhibition of WNT pathway on post-injury outcome and the cellular mediators involved are not completely understood. Using a newly available, small molecule, GNF-6231, which averts WNT pathway activation by blocking secretion of all WNT ligands, we sought to investigate whether therapeutic inhibition of the WNT pathway temporarily after infarct can mitigate post injury cardiac dysfunction and fibrosis and the cellular mechanisms responsible for the effects. METHODS AND RESULTS Pharmacologic inhibition of the WNT pathway by post-MI intravenous injection of GNF-6231 in C57Bl/6 mice significantly reduced the decline in cardiac function (Fractional Shortening at day 30: 38.71 ± 4.13% in GNF-6231 treated vs. 34.89 ± 4.86% in vehicle-treated), prevented adverse cardiac remodeling, and reduced infarct size (9.07 ± 3.98% vs. 17.18 ± 4.97%). WNT inhibition augmented proliferation of interstitial cells, particularly in the distal myocardium, inhibited apoptosis of cardiomyocytes, and reduced myofibroblast proliferation in the peri-infarct region. In vitro studies showed that WNT inhibition increased proliferation of Sca1+ cardiac progenitors, improved survival of cardiomyocytes, and inhibited collagen I synthesis by cardiac myofibroblasts. CONCLUSION Systemic, temporary pharmacologic inhibition of the WNT pathway using an orally bioavailable drug immediately following MI resulted in improved function, reduced adverse remodeling and reduced infarct size in mice. Therapeutic WNT inhibition affected multiple aspects of infarct repair: it promoted proliferation of cardiac progenitors and other interstitial cells, inhibited myofibroblast proliferation, improved cardiomyocyte survival, and reduced collagen I gene expression by myofibroblasts. Our data point to a promising role for WNT inhibitory therapeutics as a new class of drugs to drive post-MI repair and prevent heart failure.
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Affiliation(s)
- Dikshya Bastakoty
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sarika Saraswati
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Piyush Joshi
- Interdisciplinary Graduate Program, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - James Atkinson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Veterans Affairs Medical Center, Nashville, Tennessee, USA
| | - Igor Feoktistov
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jun Liu
- Genomics Institute of Novartis Research Foundation, San Diego, California, USA
| | - Jennifer L Harris
- Genomics Institute of Novartis Research Foundation, San Diego, California, USA
| | - Pampee P Young
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Veterans Affairs Medical Center, Nashville, Tennessee, USA; Department of Internal Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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14
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Cardiovascular Actions and Therapeutic Potential of Tetramethylpyrazine (Active Component Isolated from Rhizoma Chuanxiong): Roles and Mechanisms. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2430329. [PMID: 27314011 PMCID: PMC4893570 DOI: 10.1155/2016/2430329] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/07/2016] [Accepted: 04/27/2016] [Indexed: 01/02/2023]
Abstract
Tetramethylpyrazine (TMP), a pharmacologically active component isolated from the rhizome of the Chinese herb Rhizoma Chuanxiong (Chuanxiong), has been clinically used in China and Southeast Asian countries for the prevention and treatment of cardiovascular diseases (CVDs) for about fifty years. The pharmacological effects of TMP on the cardiovascular system have attracted great interest. Emerging experimental studies and clinical trials have demonstrated that TMP prevents atherosclerosis as well as ischemia-reperfusion injury. The cardioprotective effects of TMP are mainly related to its antioxidant, anti-inflammatory, or calcium-homeostasis effects. This review focuses on the roles and mechanisms of action of TMP in the cardiovascular system and provides a novel perspective on TMP's clinical use.
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15
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Qian W, Xiong X, Fang Z, Lu H, Wang Z. Protective effect of tetramethylpyrazine on myocardial ischemia-reperfusion injury. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:107501. [PMID: 25152756 PMCID: PMC4135172 DOI: 10.1155/2014/107501] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 07/06/2014] [Accepted: 07/07/2014] [Indexed: 01/28/2023]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is a common pathological and physiological phenomenon. Tetramethylpyrazine is the extract of the traditional Chinese medicine Chuanxiong, which can exert protective effects on MIRI in multiple ways. This paper reviewed the current research progress and evidence about the cardiovascular effects of tetramethylpyrazine, which included protecting mitochondria and improving energy metabolism, scavenging oxygen free radicals (OFRs) to inhibit lipid peroxidation, attenuating calcium (Ca(2+)) overload and maintaining Ca(2+) homeostasis in cells, inhibiting apoptosis and protecting myocardial cells, interfering with the inflammatory reaction and mitigating cell injury, interfering with cell signaling pathways, and improving function of endothelial cells and protecting myocardial cells. However, further rigorously designed randomized controlled trials are warranted.
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Affiliation(s)
- Weidong Qian
- Department of Cardiology, Traditional Chinese Medicine Hospital of Wujin District, Affiliated Hospital of Nanjing University of Chinese Medicine, Changzhou 213161, China
| | - Xingjiang Xiong
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Xicheng District, Beijing 100053, China
| | - Zhuyuan Fang
- Department of Cardiology, Jiangsu Province Hospital of Traditional Chinese Medicine, Jiangsu 210029, China
| | - Haiting Lu
- Department of Cardiology, Traditional Chinese Medicine Hospital of Wujin District, Affiliated Hospital of Nanjing University of Chinese Medicine, Changzhou 213161, China
| | - Zhensheng Wang
- Department of Cardiology, Traditional Chinese Medicine Hospital of Wujin District, Affiliated Hospital of Nanjing University of Chinese Medicine, Changzhou 213161, China
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16
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Cuadrado I, Fernández-Velasco M, Boscá L, de las Heras B. Labdane diterpenes protect against anoxia/reperfusion injury in cardiomyocytes: involvement of AKT activation. Cell Death Dis 2011; 2:e229. [PMID: 22071634 PMCID: PMC3223697 DOI: 10.1038/cddis.2011.113] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Several labdane diterpenes exert anti-inflammatory and cytoprotective actions; therefore, we have investigated whether these molecules protect cardiomyocytes in an anoxia/reperfusion (A/R) model, establishing the molecular mechanisms involved in the process. The cardioprotective activity of three diterpenes (T1, T2 and T3) was studied in the H9c2 cell line and in isolated rat cardiomyocyte subjected to A/R injury. In both cases, treatment with diterpenes T1 and T2 protected from A/R-induced apoptosis, as deduced by a decrease in the percentage of apoptotic and caspase-3 active positive cells, a decrease in the Bcl-2/Bax ratio and an increase in the expression of antiapoptotic proteins. Analysis of cell survival signaling pathways showed that diterpenes T1 and T2 added after A/R increased phospho-AKT and phospho-ERK 1/2 levels. These cardioprotective effects were lost when AKT activity was pharmacologically inhibited. Moreover, the labdane-induced cardioprotection involves activation of AMPK, suggesting a role for energy homeostasis in their mechanism of action. Labdane diterpenes (T1 and T2) also exerted cardioprotective effects against A/R-induced injury in isolated cardiomyocytes and the mechanisms involved activation of specific survival signals (PI3K/AKT pathways, ERK1/2 and AMPK) and inhibition of apoptosis.
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Affiliation(s)
- I Cuadrado
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - M Fernández-Velasco
- Instituto de Investigaciones Biomédicas ‘Alberto Sols' (CSIC-UAM), Madrid, Spain
| | - L Boscá
- Instituto de Investigaciones Biomédicas ‘Alberto Sols' (CSIC-UAM), Madrid, Spain
- Instituto de Investigaciones Biomédicas ‘Alberto Sols' (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain. Tel: +34 9149 72747; Fax: +34 9158 54401; E-mail:
| | - B de las Heras
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain. Tel: +34 9139 42276; Fax: +34 9139 41726; E-mail:
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