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Protection against Doxorubicin-Induced Cardiotoxicity through Modulating iNOS/ARG 2 Balance by Electroacupuncture at PC6. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6628957. [PMID: 33824696 PMCID: PMC8007344 DOI: 10.1155/2021/6628957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/24/2021] [Accepted: 02/28/2021] [Indexed: 12/16/2022]
Abstract
Background Doxorubicin (DOX) is a commonly used chemotherapeutic drug but is limited in clinical applications by its cardiotoxicity. Neiguan acupoint (PC6) is a well-recognized acupoint for the treatment of cardiothoracic disease. However, whether acupuncture at PC6 could be effective in preventing DOX-induced cardiotoxicity is still unknown. Methods A set of experiments were performed with myocardial cells, wild type, inducible nitric oxide synthase knockout (iNOS-/-), and myocardial-specific ablation arginase 2 (Myh6-ARG 2-/-) mice. We investigated the protective effect and the underlying mechanisms for electroacupuncture (EA) against DOX-induced cardiotoxicity by echocardiography, immunostaining, biochemical analysis, and molecular biotechnology in vivo and in vitro analysis. Results We found that DOX-mediated nitric oxide (NO) production was positively correlated with the iNOS level but has a negative correlation with the arginase 2 (ARG 2) level in both myocardial cells and tissues. Meanwhile, EA at PC6 alleviated cardiac dysfunction and cardiac hypertrophy in DOX-treated mice. EA at PC6 blocked the upregulation of NO production in accompanied with the downregulated iNOS and upregulated ARG 2 levels in myocardial tissue induced by DOX. Furthermore, knockout iNOS prevented cardiotoxicity and EA treatment did not cause the further improvement of cardiac function in iNOS-/- mice treated by DOX. In contrast, deficiency of myocardial ARG 2 aggravated DOX-induced cardiotoxicity and reduced EA protective effect. Conclusion These results suggest that EA treatment at PC6 can prevent DOX-induced cardiotoxicity through modulating NO production by modulating the iNOS/ARG 2 balance in myocardial cells.
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de Miranda DC, de Oliveira Faria G, Hermidorff MM, Dos Santos Silva FC, de Assis LVM, Isoldi MC. Pre- and Post-Conditioning of the Heart: An Overview of Cardioprotective Signaling Pathways. Curr Vasc Pharmacol 2020; 19:499-524. [PMID: 33222675 DOI: 10.2174/1570161119666201120160619] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022]
Abstract
Since the discovery of ischemic pre- and post-conditioning, more than 30 years ago, the knowledge about the mechanisms and signaling pathways involved in these processes has significantly increased. In clinical practice, on the other hand, such advancement has yet to be seen. This article provides an overview of ischemic pre-, post-, remote, and pharmacological conditioning related to the heart. In addition, we reviewed the cardioprotective signaling pathways and therapeutic agents involved in the above-mentioned processes, aiming to provide a comprehensive evaluation of the advancements in the field. The advancements made over the last decades cannot be ignored and with the exponential growth in techniques and applications. The future of pre- and post-conditioning is promising.
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Affiliation(s)
- Denise Coutinho de Miranda
- Laboratory of Cell Signaling, Research Center in Biological Science, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Gabriela de Oliveira Faria
- Laboratory of Cell Signaling, Research Center in Biological Science, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Milla Marques Hermidorff
- Laboratory of Cell Signaling, Research Center in Biological Science, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Fernanda Cacilda Dos Santos Silva
- Laboratory of Cardiovascular Physiology, Department of Biological Science, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Leonardo Vinícius Monteiro de Assis
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Mauro César Isoldi
- Laboratory of Cell Signaling, Research Center in Biological Science, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
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Wang L, Zhang J. Exosomal lncRNA AK139128 Derived from Hypoxic Cardiomyocytes Promotes Apoptosis and Inhibits Cell Proliferation in Cardiac Fibroblasts. Int J Nanomedicine 2020; 15:3363-3376. [PMID: 32494135 PMCID: PMC7229807 DOI: 10.2147/ijn.s240660] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 04/08/2020] [Indexed: 01/04/2023] Open
Abstract
Introduction Myocardial infarction (MI) is the leading cause of congestive heart failure and mortality. Hypoxia is an important trigger in the cardiac remodeling of the myocardium in the development and progression of cardiac diseases. Objective Thus, we aimed to investigate the effect of hypoxia-induced exosomes on cardiac fibroblasts (CFs) and its related mechanisms. Materials and Methods In this study, we successfully isolated and identified the exosomes from hypoxic cardiomyocytes (CMs). Exosomes derived from hypoxic CMs promoted apoptosis and inhibited proliferation, migration, and invasion in CFs. RNA-Seq assay suggested that long noncoding RNA AK139128 (lncRNA AK139128) was found to overexpress in both hypoxic CMs and CMs-secreting exosomes. After coculturing with CFs, hypoxic exosomes increased the expression of AK139128 in recipient CFs. Moreover, exosomal AK139128 derived from hypoxic CMs stimulated CFs apoptosis and inhibited proliferation, migration, and invasion. Furthermore, the effect of exosomal AK139128 derived from hypoxic CMs could also exacerbate MI in the rat model. Conclusion Taken together, hypoxia upregulated the level of AK139128 in CMs and exosomes and exosomal AK139128 derived from hypoxic CMs modulated cellular activities of CFs in vitro and in vivo. This study provides a new understanding of the mechanism underlying hypoxia-related cardiac diseases and insight into developing new therapeutic strategies.
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Affiliation(s)
- Lei Wang
- Cardiovascular Department, Cangzhou Central Hospital, Cangzhou, Hebei Province 061001, People's Republic of China
| | - Jun Zhang
- Cardiovascular Department, Cangzhou Central Hospital, Cangzhou, Hebei Province 061001, People's Republic of China
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Doxakis A, Polyanthi K, Androniki T, Savvas P, Eleni Z. Targeting metalloproteinases in cardiac remodeling. ACTA ACUST UNITED AC 2019. [DOI: 10.17352/2455-2976.000092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Kowalczyk M, Guz M, Okoń E, Jeleniewicz W, Grzycka-Kowalczyk L, Kiełbus M, Dudka J, Suseł W, Dąbrowski W, Stepulak A. MMP-9 and MMP-2 regulation in patients undergoing non-oncological and non-vascular elective surgery independent of the use of propofol or sevoflurane. Pharmacol Rep 2019; 71:528-534. [PMID: 31015093 DOI: 10.1016/j.pharep.2019.02.009] [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: 04/04/2018] [Revised: 01/04/2019] [Accepted: 02/15/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND There is debate regarding whether inhaled sevoflurane or intravenous propofol used during anesthesia achieves the best outcome. Propofol has been shown to affect expression of matrix metalloproteinases (MMPs). MMPs are enzymes that play a role in extracellular matrix remodeling, with activity balance disturbances during surgery. The goal of this study was to compare MMP-2/9 concentrations, activity, and tissue inhibitors of metalloproteinases (TIMPs) 1/2 concentrations in blood of who had undergone 2 types of anesthesia: based on volatile sevoflurane and intravenous propofol during non-oncological, non-vascular surgery. METHODS 39 patients were enrolled into analysis, 20 anesthetized with total intravenous anesthesia with propofol (P), 19 with volatile induction/maintenance of anesthesia with sevoflurane (S). Plasma samples collected before and 24 h after surgery were analyzed for MMP-2/9, and TIMP-1/2 concentrations using ELISAs. Additionally, MMP-2/9 activities were assessed by gelatin zymography. RESULTS Study revealed increased MMP-9 concentration (ELISA) (P:p = 0.011; S:p = 0.001) and activity (zymography) (P:p = 0.004; S:p = 0.008) in both groups 24 h after surgery. We noticed decreased (both groups) MMP-2 concentration (P:p = 0.044; S:p = 0.027) with MMP-2 activity increase (P:p = 0.002; S:p = 0.006) 24 h after surgery. We observed decreased TIMP-1 plasma concentrations (P:p = 0.002; S:p = 0.000) 24 h after procedures, while TIMP-2 plasma levels remain unchanged (P:p = 0.097; S:p = 0.172). There were no differences between concentration and activity of MMPs and TIMPs in regard to anesthetic used. Meperidine administration correlated with lower MMP-9 activity (R=-0.430; p = 0.006). CONCLUSIONS Concluding, neither sevoflurane nor propofol used as anesthetics modulate MMP-2 and MMP-9 concentrations and activities during non-oncological, non-vascular elective surgery. Meperidine seems to decrease MMP-9 activity.
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Affiliation(s)
- Michał Kowalczyk
- 1st Department of Anesthesiology and Intensive Care, Medical University of Lublin, Lublin, Poland.
| | - Małgorzata Guz
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland.
| | - Estera Okoń
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland.
| | - Witold Jeleniewicz
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland.
| | - Luiza Grzycka-Kowalczyk
- 1st Department of Radiology and Nuclear Medicine, Medical University of Lublin, Lublin, Poland.
| | - Michał Kiełbus
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland.
| | - Jarosław Dudka
- Department of Toxicology, Medical University of Lublin, Poland.
| | - Wojciech Suseł
- Department of Anesthesiology and Intensive Care, Saint Luke's Regional Hospital in Tarnów, Tarnów, Poland.
| | - Wojciech Dąbrowski
- 1st Department of Anesthesiology and Intensive Care, Medical University of Lublin, Lublin, Poland.
| | - Andrzej Stepulak
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland.
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Bencsik P, Kupai K, Görbe A, Kenyeres É, Varga ZV, Pálóczi J, Gáspár R, Kovács L, Weber L, Takács F, Hajdú I, Fabó G, Cseh S, Barna L, Csont T, Csonka C, Dormán G, Ferdinandy P. Development of Matrix Metalloproteinase-2 Inhibitors for Cardioprotection. Front Pharmacol 2018; 9:296. [PMID: 29674965 PMCID: PMC5896266 DOI: 10.3389/fphar.2018.00296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 03/14/2018] [Indexed: 12/14/2022] Open
Abstract
The objective of our present study is to develop novel inhibitors for MMP-2 for acute cardioprotection. In a series of pilot studies, novel substituted carboxylic acid derivatives were synthesized based on imidazole and thiazole scaffolds and then tested in a screeening cascade for MMP inhibition. We found that the MMP-inhibiting effects of imidazole and thiazole carboxylic acid-based compounds are superior in efficacy in comparison to the conventional hydroxamic acid derivatives of the same molecules. Based on these results, a 568-membered focused library of imidazole and thiazole compounds was generated in silico and then the library members were docked to the 3D model of MMP-2 followed by an in vitro medium throughput screening (MTS) based on a fluorescent assay employing MMP-2 catalytic domain. Altogether 45 compounds showed a docking score of >70, from which 30 compounds were successfully synthesized. Based on the MMP-2 inhibitory tests using gelatin zymography, 7 compounds were then selected and tested in neonatal rat cardiac myocytes subjected to simulated I/R injury. Six compounds showed significant cardio-cytoprotecion and the most effective compound (MMPI-1154) significantly decreased infarct size when applied at 1 μM in an ex vivo model for acute myocardial infarction. This is the first demonstration that imidazole and thiazole carboxylic acid-based compounds are more efficacious MMP-2 inhibitor than their hydroxamic acid derivatives. MMPI-1154 is a promising novel cardio-cytoprotective imidazole-carboxylic acid MMP-2 inhibitor lead candidate for the treatment of acute myocardial infarction.
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Affiliation(s)
- Péter Bencsik
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Krisztina Kupai
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Anikó Görbe
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Éva Kenyeres
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - Zoltán V Varga
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - János Pálóczi
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Renáta Gáspár
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | | | | | | | - István Hajdú
- Targetex Biosciences, Dunakeszi, Hungary.,Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | | | | | - László Barna
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary.,Microscopy Center at IEM HAS, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest, Hungary
| | - Tamás Csont
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Csaba Csonka
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | | | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary.,Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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Xie CL, Pan YB, Hu LQ, Qian YN. Propofol attenuates hydrogenperoxide-induced apoptosis in human umbilical vein endothelial cells via multiple signaling pathways. Korean J Anesthesiol 2015; 68:488-95. [PMID: 26495060 PMCID: PMC4610929 DOI: 10.4097/kjae.2015.68.5.488] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/21/2014] [Accepted: 09/23/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Propofol has been reported to protect vascular endothelial cells against oxidative stress. In this study we investigated its effect on hydrogen peroxide (H2O2)-induced apoptosis of human umbilical vein endothelial cells (HUVECs) and examined the possible signaling pathways. METHODS HUVECs were pretreated with propofol (1, 5, 25, and 50 µM) for 30 min and then co-incubated with 0.4 mM H2O2 for 4 h. Cell viability was assessed using a Cell Counting Kit-8. Cell apoptosis was analyzed using flow cytometry with annexin V/propidium iodide staining, and evaluated by quantifying caspase-3, Bax, and Bcl-2 expression levels. The expression levels of p38 mitogen activated protein kinase (MAPK), phosphorylated (p)-p38 MAPK, cJun-N-terminal kinases (JNK), phosphorylated (p)-JNK, Akt and phosphorylated Akt [(p)-Akt] (Ser473) were measured by western blotting. RESULTS H2O2 treatment induced the activation of caspase-3, downregulated Bcl-2 expression, and up-regulated Bax expression, all of which were dose-dependently attenuated by propofol pretreatment. Furthermore, propofol significantly ameliorated H2O2-induced phosphorylation of p38 MAPK, JNK, and Akt in HUVECs. CONCLUSIONS Propofol can protect HUVECs against H2O2-induced apoptosis via a mechanism that may involve p38 MAPK, JNK, and Akt signaling pathways.
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Affiliation(s)
- Cheng Lan Xie
- Department of Anesthesiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- Department of Anesthesiology, Huai'an Second Hospital Affiliated to Xuzhou Medical College, Huai'an, China
| | - Yin Bing Pan
- Department of Anesthesiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Liu Qing Hu
- Department of Anesthesiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yan Ning Qian
- Department of Anesthesiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China
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8
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Jun JH, Jun NH, Shim JK, Shin EJ, Kwak YL. Erythropoietin protects myocardium against ischemia-reperfusion injury under moderate hyperglycemia. Eur J Pharmacol 2014; 745:1-9. [PMID: 25446919 DOI: 10.1016/j.ejphar.2014.09.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/23/2014] [Accepted: 09/23/2014] [Indexed: 01/26/2023]
Abstract
Erythropoietin (EPO), an essential hormone for erythropoiesis, provides protection against myocardial ischemia/reperfusion (I/R) injury. Hyperglycemia during acute myocardial infarction aggravates organ damage and attenuates the efficacies of various protective measures. This study aimed to investigate the protective role of EPO against myocardial I/R injury under a clinically relevant moderate hyperglycemic condition and its associated mechanisms. Eighty-two Sprague-Dawley rats were randomly assigned to six groups: normoglycemia-Sham, normoglycemia-I/R-control-saline (IRC), normoglycemia-I/R-EPO (IRE), hyperglycemia-Sham, hyperglycemia-IRC, and hyperglycemia-IRE. The rats received 1.2 g/kg dextrose or same volume of normal saline depending on the group. I/R was induced by a 30 min period of ischemia followed by reperfusion for 4 h. For 1 h before I/R injury, intravenous 4000 IU/kg of EPO was administered. EPO pretreatment significantly reduced the number of apoptotic cells and the infarct size compared with those of the control groups. EPO increased GATA-4 phosphorylation and acetylation against I/R in hyperglycemic myocardium. It also enhanced ERK induced GATA-4 post-translational modifications such as increased GATA-4 phosphorylation and acetylation, and decreased GATA-4 ubiquitination following hypoxia-reoxygenation in H9c2 cells in hyperglycemic medium. Increased GATA-4 stability by EPO diminished I/R-related down-regulation of Bcl-2 and reduction of caspase-3 activities in hyperglycemic myocardium. In conclusion, EPO pretreatment before I/R injury conveyed significant myocardial protection under moderate hyperglycemic condition through mechanisms involved in reduction of caspase-3 activity and up-regulation of Bcl-2 in association with enhanced ERK-induced GATA-4 stability.
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Affiliation(s)
- Ji Hae Jun
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Na-Hyung Jun
- Department of Anesthesiology and Pain Medicine, National Health Insurance Corporation Ilsan Hospital, Goyang, Republic of Korea
| | - Jae-Kwang Shim
- Department of Anesthesiology and Pain Medicine, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Jung Shin
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young-Lan Kwak
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Anesthesiology and Pain Medicine, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
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9
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Maiwulanjiang M, Chen J, Xin G, Gong AGW, Miernisha A, Du CYQ, Lau KM, Lee PSC, Chen J, Dong TTX, Aisa HA, Tsim KWK. The volatile oil of Nardostachyos Radix et Rhizoma inhibits the oxidative stress-induced cell injury via reactive oxygen species scavenging and Akt activation in H9c2 cardiomyocyte. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:491-498. [PMID: 24632018 DOI: 10.1016/j.jep.2014.03.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/03/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nardostachyos Radix et Rhizoma (NRR; the root and rhizome of Nardostachys jatamansi DC.) is a well-known medicinal herb widely used in Chinese, Uyghur and Ayurvedic medicines for the treatment of cardiovascular disorders. The oxidative stress-induced cardiomyocyte loss is the major pathogenesis of heart disorders. Here, the total volatile oil of NRR was isolated, and its function in preventing the cell death of cardiomyocyte was demonstrated. MATERIALS AND METHODS The cyto-protective effect of volatile oil of NRR against tBHP-induced H9c2 cardiomyocyte injury was measured by MTT assay. A promoter-report construct (pARE-Luc) containing four repeats of antioxidant response element (ARE) was applied to study the transcriptional activation of ARE. The amounts of phase ΙΙ antioxidant enzymes were analyzed by quantitative real-time polymer chain reaction (qPCR) upon the volatile oil treatment at 30 μg/mL for 24 h. The activation of Akt pathway was analyzed by western blot. RESULTS In cultured H9c2 cardiomyocytes, application of NRR volatile oil exhibited strong potency in preventing tBHP-induced cell death and accumulation of intracellular reactive oxygen species (ROS) in a concentration-dependent manner. In addition, the application of NRR volatile oil in cultures stimulated the gene expressions of self-defense antioxidant enzymes, which was mediated by the transcriptional activation of antioxidant response element (ARE). The induced genes were glutathione S-transferase, NAD(P)H quinone oxidoreductase, glutamate-cysteine ligase catalytic and modulatory subunits. In addition, the volatile oil of NRR activated the phosphorylation of Akt in cultured H9c2 cells. The treatment of LY294002, an Akt inhibitor, significantly inhibited the volatile oil-mediated ARE transcriptional activity, as well as the cell protective effect of NRR oil. CONCLUSION These results demonstrated that NRR volatile oil prevented the oxidative stress-induced cell death in H9c2 cells by (i) reducing intracellular ROS production, (ii) inducing antioxidant enzymes and (iii) activating Akt phosphorylation.
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Affiliation(s)
- Maitinuer Maiwulanjiang
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Jianping Chen
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Guizhong Xin
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Amy G W Gong
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Abudureyimu Miernisha
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Crystal Y Q Du
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kei M Lau
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Pinky S C Lee
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Jihang Chen
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Tina T X Dong
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Haji A Aisa
- Xinjiang Key Laboratory of Plant Resources and Natural Products Chemistry, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Karl W K Tsim
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
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Propofol impairs spatial memory consolidation and prevents learning-induced increase in hippocampal matrix metalloproteinase-9 levels in rat. Neuroreport 2013; 24:831-6. [DOI: 10.1097/wnr.0b013e328364fe69] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Ginsenoside RK3 Prevents Hypoxia-Reoxygenation Induced Apoptosis in H9c2 Cardiomyocytes via AKT and MAPK Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:690190. [PMID: 23935671 PMCID: PMC3712237 DOI: 10.1155/2013/690190] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 06/13/2013] [Indexed: 11/18/2022]
Abstract
Reperfusion therapy is widely utilized for acute myocardial infarction (AMI), but further injury induced by rapidly initiating reperfusion of the heart is often encountered in clinical practice. Ginsenoside RK3 (RK3) is reportedly present in the processed Radix notoginseng that is often used as a major ingredient of the compound preparation for ischemic heart diseases. This study aimed to investigate the possible protective effect of RK3 against hypoxia-reoxygenation (H/R) induced H9c2 cardiomyocytes damage and its underlying mechanisms. Our results showed that RK3 pretreatment caused increased cell viability and decreased levels of LDH leakage compared with the H/R group. Moreover, RK3 pretreatment inhibited cell apoptosis, as evidenced by decreased caspase-3 activity, TUNEL-positive cells, and Bax expression, as well as increased Bcl-2 level. Further mechanism investigation revealed that RK3 prevented H9c2 cardiomyocytes injury and apoptosis induced by H/R via AKT/Nrf-2/HO-1 and MAPK pathways. These observations indicate that RK3 has the potential to exert cardioprotective effects against H/R injury, which might be of great importance to clinical efficacy for AMI treatment.
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12
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Jun JH, Shim JK, Ryoo HM, Kwak YL. Erythropoietin-activated ERK/MAP kinase enhances GATA-4 acetylation via phosphorylation of serine 261 of GATA-4. J Cell Physiol 2012; 228:190-7. [DOI: 10.1002/jcp.24121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Vadla GP, Vellaichamy E. Anti-fibrotic cardio protective efficacy of aminoguanidine against streptozotocin induced cardiac fibrosis and high glucose induced collagen up regulation in cardiac fibroblasts. Chem Biol Interact 2012; 197:119-28. [PMID: 22543014 DOI: 10.1016/j.cbi.2012.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2011] [Revised: 04/07/2012] [Accepted: 04/10/2012] [Indexed: 11/20/2022]
Abstract
This study mainly focuses on cardio protective anti-fibrotic activity of aminoguanidine against streptozotocin induced cardiac fibrosis and high glucose induced collagen accumulation in cardiac fibroblasts. Dysregulation of matrix metalloproteinase especially 2 and 9 were considered to be responsible for the abnormal collagen deposition, which resulting improper cardiac contractile function in diabetic mice. Mice received a single dose of streptozotocin (100 mg/kg) through tail vein to induce diabetes. Normal and diabetic mice received aminoguanidine orally (100 mg/kg/day) throughout the study period of 8 weeks. Cardiac fibroblasts cultured and exposed to high glucose, aminoguanidine and both for 48 h. Collagen quantitatively estimated in both in vivo and in vitro models. Altered structural changes were studied using the Masson tri-chrome staining, TEM images of cardiac sections. Increased collagen and metalloproteinase activities were confirmed using gelatin zymography, western blotting and gene expression studies. The exact mechanism responsible for high glucose induced collagen up regulation in diabetic heart was incompletely understood. From this above in vivo and in vitro results, we conclude that, the cardio protective anti fibrotic activity of amino guanidine was mainly attributed by exhibiting the inhibitory efficacy against streptozotocin and high glucose induced collagen accumulation probably by inhibiting high glucose altered metalloproteinase-2 and -9 activities.
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