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Yu W, Jin H, Tang C, Du J, Zhang Z. Sulfur-containing gaseous signal molecules, ion channels and cardiovascular diseases. Br J Pharmacol 2017; 175:1114-1125. [PMID: 28430359 DOI: 10.1111/bph.13829] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/23/2017] [Accepted: 04/11/2017] [Indexed: 01/05/2023] Open
Abstract
Sulfur-containing gaseous signal molecules including hydrogen sulphide and sulfur dioxide were previously recognized as toxic gases. However, extensive studies have revealed that they can be generated in the cardiovascular system via a sulfur-containing amino acid metabolic pathway, and have an important role in cardiovascular physiology and pathophysiology. Ion channels are pore-forming membrane proteins present in the membrane of all biological cells; their functions include the establishment of a resting membrane potential and the control of action potentials and other electrical signals by conducting ions across the cell membrane. Evidence has now accumulated suggesting that the sulfur-containing gaseous signal molecules are important regulators of ion channels and transporters. The aims of this review are (1) to discuss the recent experimental evidences in the cardiovascular system regarding the regulatory effects of sulfur-containing gaseous signal molecules on a variety of ion channels, including ATP-sensitive potassium, calcium-activated potassium, voltage-gated potassium, L- and T-type calcium, transient receptor potential and chloride and sodium channels, and (2) to understand how the gaseous signal molecules affect ion channels and cardiovascular diseases. LINKED ARTICLES This article is part of a themed section on Spotlight on Small Molecules in Cardiovascular Diseases. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.8/issuetoc.
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Affiliation(s)
- Wen Yu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chaoshu Tang
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Zhiren Zhang
- Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin Medical University Cancer Hospital, Harbin, China
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Sun Y, Chen Z, Chen F, Liu H, He H, Zhang X, Wang S. An HBT-Based Near-Infrared Fluorescent Probe for Colorimetric and Ratiometric Detection of Bisulfite and its Application in Living Cells. J Fluoresc 2017; 27:1405-1411. [DOI: 10.1007/s10895-017-2077-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 04/04/2017] [Indexed: 12/11/2022]
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53
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A new fluorescent probe for colorimetric and ratiometric detection of sulfur dioxide derivatives in liver cancer cells. Sci Rep 2017; 7:45294. [PMID: 28349998 PMCID: PMC5368602 DOI: 10.1038/srep45294] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/23/2017] [Indexed: 12/20/2022] Open
Abstract
A new ratiometric fluorescent probe was constructed with hemicyanine and 7-nitrobenzofurazan for detection of sulfur dioxide derivatives (HSO3−/SO32−). The ratiometric response mode could be attributed to the efficient FRET (Förster resonance energy transfer) platform. The probe exbihited some desirable properties including fast response (within 2 minutes), good selectivity and high sensitivity. Moreover, the probe could detect endogenous HSO3− in liver cancer cells rather than normal liver cells, implying the diagnosal potential of the probe.
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54
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Olson KR, Gao Y, DeLeon ER, Arif M, Arif F, Arora N, Straub KD. Catalase as a sulfide-sulfur oxido-reductase: An ancient (and modern?) regulator of reactive sulfur species (RSS). Redox Biol 2017; 12:325-339. [PMID: 28285261 PMCID: PMC5350573 DOI: 10.1016/j.redox.2017.02.021] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 02/11/2017] [Accepted: 02/24/2017] [Indexed: 11/19/2022] Open
Abstract
Catalase is well-known as an antioxidant dismutating H2O2 to O2 and H2O. However, catalases evolved when metabolism was largely sulfur-based, long before O2 and reactive oxygen species (ROS) became abundant, suggesting catalase metabolizes reactive sulfide species (RSS). Here we examine catalase metabolism of H2Sn, the sulfur analog of H2O2, hydrogen sulfide (H2S) and other sulfur-bearing molecules using H2S-specific amperometric electrodes and fluorophores to measure polysulfides (H2Sn; SSP4) and ROS (dichlorofluorescein, DCF). Catalase eliminated H2Sn, but did not anaerobically generate H2S, the expected product of dismutation. Instead, catalase concentration- and oxygen-dependently metabolized H2S and in so doing acted as a sulfide oxidase with a P50 of 20mmHg. H2O2 had little effect on catalase-mediated H2S metabolism but in the presence of the catalase inhibitor, sodium azide (Az), H2O2 rapidly and efficiently expedited H2S metabolism in both normoxia and hypoxia suggesting H2O2 is an effective electron acceptor in this reaction. Unexpectedly, catalase concentration-dependently generated H2S from dithiothreitol (DTT) in both normoxia and hypoxia, concomitantly oxidizing H2S in the presence of O2. H2S production from DTT was inhibited by carbon monoxide and augmented by NADPH suggesting that catalase heme-iron is the catalytic site and that NADPH provides reducing equivalents. Catalase also generated H2S from garlic oil, diallyltrisulfide, thioredoxin and sulfur dioxide, but not from sulfite, metabisulfite, carbonyl sulfide, cysteine, cystine, glutathione or oxidized glutathione. Oxidase activity was also present in catalase from Aspergillus niger. These results show that catalase can act as either a sulfide oxidase or sulfur reductase and they suggest that these activities likely played a prominent role in sulfur metabolism during evolution and may continue do so in modern cells as well. This also appears to be the first observation of catalase reductase activity independent of peroxide dismutation.
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Affiliation(s)
- Kenneth R Olson
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA.
| | - Yan Gao
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA
| | - Eric R DeLeon
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Maaz Arif
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA
| | - Faihaan Arif
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA
| | - Nitin Arora
- Indiana University School of Medicine - South Bend, South Bend, IN 46617, USA
| | - Karl D Straub
- Central Arkansas Veteran's Healthcare System, Little Rock, AR 72205, USA; Departments of Medicine and Biochemistry, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
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55
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Ji X, El-Labbad EM, Ji K, Lasheen DS, Serya RAT, Abouzid KA, Wang B. Click and Release: SO 2 Prodrugs with Tunable Release Rates. Org Lett 2017; 19:818-821. [PMID: 28133965 DOI: 10.1021/acs.orglett.6b03805] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Employing an intramolecular cycloaddition reaction, we have developed a series of SO2 prodrugs with tunable release rates with half-lives ranging from minutes to days.
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Affiliation(s)
- Xingyue Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University , Atlanta, Georgia 30303 United States
| | - Eman M El-Labbad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University , Abbassia, Cairo 11566, Egypt
| | - Kaili Ji
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University , Atlanta, Georgia 30303 United States
| | - Deena S Lasheen
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University , Abbassia, Cairo 11566, Egypt
| | - Rabah A T Serya
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University , Abbassia, Cairo 11566, Egypt
| | - Khaled A Abouzid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University , Abbassia, Cairo 11566, Egypt
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University , Atlanta, Georgia 30303 United States
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56
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Yu H, Wu Y, Hu Y, Gao X, Liang Q, Xu J, Shao S. Dual-functional fluorescent probe responds to hypochlorous acid and SO 2 derivatives with different fluorescence signals. Talanta 2017; 165:625-631. [PMID: 28153308 DOI: 10.1016/j.talanta.2017.01.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/28/2016] [Accepted: 01/06/2017] [Indexed: 12/28/2022]
Abstract
In view of the important roles of reactive oxygen species (ROS) and reactive sulfur species (RSS) in the complex signal transduction and oxidation pathways, fluorescent probes that are able to display distinct signals to hypochlorous acid and SO2 derivatives are highly valuable. Herein, a novel dual-functional probe (DFP) as an efficient single fluorescent-molecule which can respond to HClO and HSO3- with two different sets of fluorescence signals was presented. The DFP displayed desired properties such as high specificity, suitable sensitivity, appreciable water solubility and stability. The sensing mechanism was confirmed by high-resolution mass spectroscopy analysis and 1H NMR spectrometry analysis. Moreover, as a biocompatible molecule, the DFP has been successfully applied for the detection of HClO in living cells with a dual-channel mode. Therefore, the present work established a novel strategy for monitoring the multiple ROS and RSS species using a single fluorescent probe and the DFP is promising as a molecular tool to investigate the production and dynamics of HClO and HSO3- in the complex interaction networks of the living system.
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Affiliation(s)
- Hui Yu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yongna Wu
- First Hospital of Lanzhou University, Lanzhou 730000, P.R. China
| | - Yue Hu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
| | - Xudong Gao
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
| | - Qing Liang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
| | - Jian Xu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China.
| | - Shijun Shao
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China.
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57
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Downregulated endogenous sulfur dioxide/aspartate aminotransferase pathway is involved in angiotensin II-stimulated cardiomyocyte autophagy and myocardial hypertrophy in mice. Int J Cardiol 2016; 225:392-401. [DOI: 10.1016/j.ijcard.2016.09.111] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/26/2016] [Accepted: 09/29/2016] [Indexed: 11/23/2022]
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58
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Takatori O, Usui S, Okajima M, Kaneko S, Ootsuji H, Takashima SI, Kobayashi D, Murai H, Furusho H, Takamura M. Sodium 4-Phenylbutyrate Attenuates Myocardial Reperfusion Injury by Reducing the Unfolded Protein Response. J Cardiovasc Pharmacol Ther 2016; 22:283-292. [PMID: 27909014 DOI: 10.1177/1074248416679308] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The unfolded protein response (UPR) plays a pivotal role in ischemia-reperfusion (I/R) injury in various organs such as heart, brain, and liver. Sodium 4-phenylbutyrate (PBA) reportedly acts as a chemical chaperone that reduces UPR. In the present study, we evaluated the effect of PBA on reducing the UPR and protecting against myocardial I/R injury in mice. METHODS Male C57BL/6 mice were subjected to 30-minute myocardial I/R, and were treated with phosphate-buffered saline (as a vehicle) or PBA. RESULTS At 4 hours after reperfusion, mice treated with PBA had reduced serum cardiac troponin I levels and numbers of apoptotic cells in left ventricles (LVs) in myocardial I/R. Infarct size had also reduced in mice treated with PBA at 48 hours after reperfusion. At 2 hours after reperfusion, UPR markers, including eukaryotic initiation of the factor 2α-subunit, activating transcription factor-6, inositol-requiring enzyme-1, glucose-regulated protein 78, CCAAT/enhancer-binding protein (C/EBP) homologous protein, and caspase-12, were significantly increased in mice treated with vehicle compared to sham-operated mice. Administration of PBA significantly reduced the I/R-induced increases of these markers. Cardiac function and dimensions were assessed at 21 days after I/R. Sodium 4-phenylbutyrate dedicated to the improvement of cardiac parameters deterioration including LV end-diastolic diameter and LV fractional shortening. Consistently, PBA reduced messenger RNA expression levels of cardiac remodeling markers such as collagen type 1α1, brain natriuretic peptide, and α skeletal muscle actin in LV at 21 days after I/R. CONCLUSION Unfolded protein response mediates myocardial I/R injury. Administration of PBA reduces the UPR, apoptosis, infarct size, and preserved cardiac function. Hence, PBA may be a therapeutic option to attenuate myocardial I/R injury in clinical practice.
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Affiliation(s)
- Osamu Takatori
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Soichiro Usui
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Masaki Okajima
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Shuichi Kaneko
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Hiroshi Ootsuji
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Shin-Ichiro Takashima
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Daisuke Kobayashi
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Hisayoshi Murai
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Hiroshi Furusho
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Masayuki Takamura
- 1 Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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59
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Preconditioning is hormesis part I: Documentation, dose-response features and mechanistic foundations. Pharmacol Res 2016; 110:242-264. [DOI: 10.1016/j.phrs.2015.12.021] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 12/16/2022]
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60
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Preconditioning is hormesis part II: How the conditioning dose mediates protection: Dose optimization within temporal and mechanistic frameworks. Pharmacol Res 2016; 110:265-275. [DOI: 10.1016/j.phrs.2015.12.020] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 01/02/2023]
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61
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Liu Y, Li K, Xie KX, Li LL, Yu KK, Wang X, Yu XQ. A water-soluble and fast-response mitochondria-targeted fluorescent probe for colorimetric and ratiometric sensing of endogenously generated SO2 derivatives in living cells. Chem Commun (Camb) 2016; 52:3430-3. [PMID: 26833293 DOI: 10.1039/c5cc10505f] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel water-soluble mitochondria-targeted ratiometric fluorescent probe (Cl-2) is presented. Cl-2 can respond selectively to SO2 derivatives within 1 min. Notably, Cl-2 can be used to monitor successfully the concentration change of endogenously generated SO2 derivatives in living cells.
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Affiliation(s)
- Yu Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Ke-Xin Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Ling-Ling Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Kang-Kang Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Xin Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
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62
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Reduced AKT phosphorylation contributes to endoplasmic reticulum stress-mediated hippocampal neuronal apoptosis in rat recurrent febrile seizure. Life Sci 2016; 153:153-62. [PMID: 27084529 DOI: 10.1016/j.lfs.2016.04.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/23/2016] [Accepted: 04/05/2016] [Indexed: 11/21/2022]
Abstract
AIMS Febrile seizure (FS) is one of the most common types of seizures in childhood. Recurrent FS can result in hippocampus injury and thus impair learning capacity and memory, while the underlying molecular mechanisms are still elusive. Studies indicated that endoplasmic reticulum stress (ERS), involved in many diseases including some neurodegenerative diseases, can increase the expression of tribbles-related protein 3 (TRIB3), which thus inhibits the activity of AKT. The current study assessed whether ERS, TRIB3 and AKT signalling is involved in the hippocampus injury following recurrent FS. MAIN METHODS Recurrent FS was induced in Sprague-Dawley (SD) rats by using a heated water-bath. TdT-mediated dUTP nick-end labeling (TUNEL) assay was performed to assess hippocampus apoptosis, and electron microscopy was used to examine ultrastructural changes. Protein expression and localization of TRIB3, glucose-regulated protein 78(GRP78) and CCAAT/enhancer-binding protein homologous protein (CHOP) as well as AKT were examined by using western blot and double immunofluorescence staining. Knockdown of TRIB3 was studied in primary cultured neurons treated with hyperthermia. KEY FINDINGS As compared with control, apoptosis of hippocampus was significantly induced in FS group. Abundance of TRIB3, GRP78 and CHOP was remarkably elevated, while phosphor-AKT decreased significantly in hippocampus of rats with recurrent FS. Double immunofluorescence indicated that phosphor-AKT was not detected in cells with induction of TRIB3 in FS rats. Hyperthermia-treated cells showed up-regulates TRIB3 expression and that TRIB3 reduces AKT phosphorylation. SIGNIFICANCE These results show that recurrent FS may induce injury of hippocampal cell by interfering with AKT activation through ERS-mediated up-regulation of TRIB3.
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63
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Wang J, Hu X, Jiang H. ER stress-induced apoptosis: A novel therapeutic target in myocardial ischemia and reperfusion injury. Int J Cardiol 2016; 214:233-4. [PMID: 27077539 DOI: 10.1016/j.ijcard.2016.03.176] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 03/20/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Jichun Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Hubei Key Laboratory of Cardiology, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - Xiaorong Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Hubei Key Laboratory of Cardiology, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Hubei Key Laboratory of Cardiology, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China.
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64
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Li Z, Huang Y, Du J, Liu AD, Tang C, Qi Y, Jin H. Endogenous Sulfur Dioxide Inhibits Vascular Calcification in Association with the TGF-β/Smad Signaling Pathway. Int J Mol Sci 2016; 17:266. [PMID: 26907267 PMCID: PMC4813130 DOI: 10.3390/ijms17030266] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 01/31/2016] [Accepted: 02/05/2016] [Indexed: 02/07/2023] Open
Abstract
The study was designed to investigate whether endogenous sulfur dioxide (SO₂) plays a role in vascular calcification (VC) in rats and its possible mechanisms. In vivo medial vascular calcification was induced in rats by vitamin D3 and nicotine for four weeks. In vitro calcification of cultured A7r5 vascular smooth muscle cells (VSMCs) was induced by calcifying media containing 5 mmol/L CaCl₂. Aortic smooth muscle (SM) α-actin, runt-related transcription factor 2 (Runx2), transforming growth factor-β (TGF-β) and Smad expression was measured. VC rats showed dispersed calcified nodules among the elastic fibers in calcified aorta with increased aortic calcium content and alkaline phosphatase (ALP) activity. SM α-actin was markedly decreased, but the osteochondrogenic marker Runx2 concomitantly increased and TGF-β/Smad signaling was activated, in association with the downregulated SO₂/aspartate aminotransferase (AAT) pathway. However, SO₂ supplementation successfully ameliorated vascular calcification, and increased SM α-actin expression, but inhibited Runx2 and TGF-β/Smad expression. In calcified A7r5 VSMCs, the endogenous SO₂/AAT pathway was significantly downregulated. SO₂ treatment reduced the calcium deposits, calcium content, ALP activity and Runx2 expression and downregulated the TGF-β/Smad pathway in A7r5 cells but increased SM α-actin expression. In brief, SO₂ significantly ameliorated vascular calcification in association with downregulation of the TGF-β/Smad pathway.
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Affiliation(s)
- Zhenzhen Li
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China.
| | - Angie Dong Liu
- Department of Medical and Health Sciences, Linköping University, Linköping 58183, Sweden.
| | - Chaoshu Tang
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China.
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100191, China.
| | - Yongfen Qi
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China.
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
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65
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Li DP, Wang ZY, Cao XJ, Cui J, Wang X, Cui HZ, Miao JY, Zhao BX. A mitochondria-targeted fluorescent probe for ratiometric detection of endogenous sulfur dioxide derivatives in cancer cells. Chem Commun (Camb) 2016; 52:2760-3. [DOI: 10.1039/c5cc09092j] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new mitochondria-targeted fluorescent probe HCy-D, constructed by dansyl and hemicyanine fluorophores, for SO2derivatives (HSO3−/SO32−) was presented.
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Affiliation(s)
- Dong-Peng Li
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Zhao-Yang Wang
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- P. R. China
| | - Xiang-Jian Cao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Jie Cui
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Xin Wang
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Hao-Zhong Cui
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Jun-Ying Miao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- P. R. China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
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66
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Huang Y, Tang C, Du J, Jin H. Endogenous Sulfur Dioxide: A New Member of Gasotransmitter Family in the Cardiovascular System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8961951. [PMID: 26839635 PMCID: PMC4709694 DOI: 10.1155/2016/8961951] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/28/2015] [Indexed: 01/20/2023]
Abstract
Sulfur dioxide (SO2) was previously regarded as a toxic gas in atmospheric pollutants. But it has been found to be endogenously generated from metabolism of sulfur-containing amino acids in mammals through transamination by aspartate aminotransferase (AAT). SO2 could be produced in cardiovascular tissues catalyzed by its synthase AAT. In recent years, studies revealed that SO2 had physiological effects on the cardiovascular system, including vasorelaxation and cardiac function regulation. In addition, the pathophysiological effects of SO2 were also determined. For example, SO2 ameliorated systemic hypertension and pulmonary hypertension, prevented the development of atherosclerosis, and protected against myocardial ischemia-reperfusion (I/R) injury and isoproterenol-induced myocardial injury. These findings suggested that endogenous SO2 was a novel gasotransmitter in the cardiovascular system and provided a new therapy target for cardiovascular diseases.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100191, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Yue ZS, Zeng LR, Quan RF, Tang YH, Zheng WJ, Qu G, Xu CD, Zhu FB, Huang ZM. 4‑Phenylbutyrate protects rat skin flaps against ischemia‑reperfusion injury and apoptosis by inhibiting endoplasmic reticulum stress. Mol Med Rep 2015; 13:1227-33. [PMID: 26648447 PMCID: PMC4732847 DOI: 10.3892/mmr.2015.4636] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 11/18/2015] [Indexed: 01/07/2023] Open
Abstract
4-phenylbutyrate (4-PBA) is a low molecular weight fatty acid, which has been demonstrated to regulate endoplasmic reticulum (ER) stress. ER stress-induced cell apoptosis has an important role in skin flap ischemia; however, a pharmacological approach for treating ischemia-induced ER dysfunction has yet to be reported. In the present study, the effects of 4-PBA-induced ER stress inhibition on ischemia-reperfusion injury were investigated in the skin flap of rats, and transcriptional regulation was examined. 4-PBA attenuated ischemia-reperfusion injury and inhibited cell apoptosis in the skin flap. Furthermore, 4-PBA reversed the increased expression levels of two ER stress markers: CCAAT/enhancer-binding protein-homologous protein and glucose-regulated protein 78. These results suggested that 4-PBA was able to protect rat skin flaps against ischemia-reperfusion injury and apoptosis by inhibiting ER stress marker expression and ER stress-mediated apoptosis. The beneficial effects of 4-PBA may prove useful in the treatment of skin flap ischemia-reperfusion injury.
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Affiliation(s)
- Zhen-Shuang Yue
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Lin-Ru Zeng
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Ren-Fu Quan
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Yang-Hua Tang
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Wen-Jie Zheng
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Gang Qu
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Can-Da Xu
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Fang-Bing Zhu
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
| | - Zhong-Ming Huang
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311201, P.R. China
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Xu J, Pan J, Jiang X, Qin C, Zeng L, Zhang H, Zhang JF. A mitochondria-targeted ratiometric fluorescent probe for rapid, sensitive and specific detection of biological SO2 derivatives in living cells. Biosens Bioelectron 2015; 77:725-32. [PMID: 26499868 DOI: 10.1016/j.bios.2015.10.049] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 12/21/2022]
Abstract
In this study, we report a ratiometric fluorescent probe (CZBI) for sulfur dioxide (SO2) derivatives based on the conjugate of carbazole and benzo[e]indolium, which displays colorimetric and ratiometric fluorescence dual response to HSO3(-). The probe can quantitatively detect HSO3(-) with high specificity, fast response (within 40s) as well as low detection limit (10nM). A 1,4-nucleophilic addition reaction was proposed for the sensing mechanism of this probe, which was confirmed by (1)H NMR and HR-MS spectra. Fluorescence co-localization studies demonstrated that CZBI was a specific mitochondria-targeted fluorescent probe for SO2 derivatives with excellent cell membrane permeability. Furthermore, fluorescence imaging of HeLa cells indicated that CZBI could be used for monitoring the intrinsically generated intracellular SO2 derivatives in living cells by ratiometric fluorescence imaging. Thus, CZBI has a great potential application for exploring the role played by SO2 derivatives in biology.
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Affiliation(s)
- Junchao Xu
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Jian Pan
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Xiaoming Jiang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Caiqin Qin
- Department of Chemistry and Material Sciences, Hubei Engineering University, Xiaogan 432000, PR China
| | - Lintao Zeng
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
| | - Huan Zhang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Jun Feng Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, PR China.
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69
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A mitochondria-targeted ratiometric fluorescent probe to monitor endogenously generated sulfur dioxide derivatives in living cells. Biomaterials 2015; 56:1-9. [DOI: 10.1016/j.biomaterials.2015.03.038] [Citation(s) in RCA: 194] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/16/2015] [Accepted: 03/23/2015] [Indexed: 12/23/2022]
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70
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Wang XB, Du JB, Cui H. Signal pathways involved in the biological effects of sulfur dioxide. Eur J Pharmacol 2015; 764:94-99. [PMID: 26123845 DOI: 10.1016/j.ejphar.2015.06.044] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/12/2015] [Accepted: 06/22/2015] [Indexed: 01/06/2023]
Abstract
Gasotransmitters, such as nitric oxide, carbon monoxide and hydrogen sulfide, play important roles in life and have attracted great interest in scientists. In recent years, sulfur dioxide (SO2) has also been found to play important roles in mammals. The redox pathway is involved in the biological effects of SO2, such as the protective effect on myocardial ischemia reperfusion, myocardial injury, pulmonary hypertension and atherosclerosis. Ion channels, such as L-type calcium and adenosine triphosphate-sensitive potassium channels, as well as 3'-5'-cyclic guanosine monophosphate and 3'-5'-cyclic adenosine monophosphate pathways are also involved in the vasorelaxant effect of SO2. The mitogen-activated protein kinase pathway plays roles in vascular remodeling during pulmonary hypertension and vascular smooth muscle cell proliferation. Understanding these signaling mechanisms would help to clarify the pathophysiological effect and therapeutic potential of SO2.
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Affiliation(s)
- Xin-Bao Wang
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Yongan Street No. 95 West District, Beijing 100050, PR China.
| | - Jun-Bao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, PR China
| | - Hong Cui
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Yongan Street No. 95 West District, Beijing 100050, PR China.
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Endogeous sulfur dioxide protects against oleic acid-induced acute lung injury in association with inhibition of oxidative stress in rats. J Transl Med 2015; 95:142-56. [PMID: 25581610 DOI: 10.1038/labinvest.2014.147] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 10/04/2014] [Accepted: 10/21/2014] [Indexed: 01/03/2023] Open
Abstract
The role of endogenous sulfur dioxide (SO2), an efficient gasotransmitter maintaining homeostasis, in the development of acute lung injury (ALI) remains unidentified. We aimed to investigate the role of endogenous SO2 in the pathogenesis of ALI. An oleic acid (OA)-induced ALI rat model was established. Endogenous SO2 levels, lung injury, oxidative stress markers and apoptosis were examined. OA-induced ALI rats showed a markedly downregulated endogenous SO2/aspartate aminotransferase 1 (AAT1)/AAT2 pathway and severe lung injury. Chemical colorimetry assays demonstrated upregulated reactive oxygen species generation and downregulated antioxidant capacity in OA-induced ALI rats. However, SO2 increased endogenous SO2 levels, protected against oxidative stress and alleviated ALI. Moreover, compared with OA-treated cells, in human alveolar epithelial cells SO2 downregulated O2(-) and OH(-) generation. In contrast, L-aspartic acid-β-hydroxamate (HDX, Sigma-Aldrich Corporation), an inhibitor of endogenous SO2 generating enzyme, promoted free radical generation, upregulated poly (ADP-ribose) polymerase expression, activated caspase-3, as well as promoted cell apoptosis. Importantly, apoptosis could be inhibited by the free radical scavengers glutathione (GSH) and N-acetyl-L-cysteine (NAC). The results suggest that SO2/AAT1/AAT2 pathway might protect against the development of OA-induced ALI by inhibiting oxidative stress.
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Li Y, Guo Y, Tang J, Jiang J, Chen Z. New insights into the roles of CHOP-induced apoptosis in ER stress. Acta Biochim Biophys Sin (Shanghai) 2014; 46:629-40. [PMID: 25016584 DOI: 10.1093/abbs/gmu048] [Citation(s) in RCA: 338] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Endoplasmic reticulum stress (ER stress) is triggered due to a loss of homeostasis in the ER, resulting in accumulation of misfolded proteins in the ER lumen. ER stress activates a series of adaptive mechanisms known as the unfolded protein response. Perturbation of the ER is a powerful inducer of the transcription factor C/EBP homologous protein (CHOP). Although it has been proved that excessive or adverse stress to the ER triggers apoptosis, the specific mechanisms underlying these processes induced by CHOP remain unclear. By now, CHOP-induced apoptosis in ER stress has been implicated in numerous human diseases, such as neurodegenerative diseases, diabetes, ischemic diseases, tumor, and so on. In this review, we summarized the current understanding of the roles of CHOP in the development of several diseases from the laboratory to the clinic.
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Globular adiponectin attenuates myocardial ischemia/reperfusion injury by upregulating endoplasmic reticulum Ca²⁺-ATPase activity and inhibiting endoplasmic reticulum stress. J Cardiovasc Pharmacol 2014; 62:143-53. [PMID: 23609327 DOI: 10.1097/fjc.0b013e31829521af] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AIM The aim of this study was to explore the mechanisms underlying the effects of globular adiponectin (gAd) on myocardial ischemia/reperfusion (I/R) injury. METHODS An in vivo myocardial I/R model and an in vitro neonatal rat cardiomyocyte hypoxia/reoxygenation (H/R) model simulating I/R injury in vivo were adopted to investigate whether and how the cardioprotective effects of gAd are mediated by the inhibition of endoplasmic reticulum (ER) stress. RESULTS gAd (1 μg/g, intravenously) attenuated the myocardial infarct size, myocardial enzyme activity, and apoptosis in rats with I/R, and similar protection was observed in primary cultures of neonatal rat cardiomyocytes. The protective effects of gAd were associated with the suppression of ER stress, as evidenced by reversing the upregulation of 78-kDa glucose-regulated protein, C/EBP homologous protein, and caspase-12 that were induced by H/R and thapsigargin. In addition, gAd conferred resistance to ER stress and cardiomyocyte injury by modulating ER Ca²⁺-ATPase (SERCA) activity. Moreover, gAd further increased H/R-enhanced Akt phosphorylation. The protective effects of gAd on ER stress and SERCA activity were abolished by preincubation of rat neonatal cardiomyocytes with the PI3K inhibitor LY294002. Consistent with this finding, I/R-induced ER stress and SERCA dysfunction were also significantly ameliorated by gAd. These effects involved PI3K/Akt signaling pathway. CONCLUSIONS The protective effects of gAd during I/R are mediated, at least in part, by modulating SERCA activity and consequently suppressing ER stress via the activation of PI3K/Akt signaling.
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74
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Wang XB, Du JB, Cui H. Sulfur dioxide, a double-faced molecule in mammals. Life Sci 2014; 98:63-7. [DOI: 10.1016/j.lfs.2013.12.027] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 12/07/2013] [Accepted: 12/20/2013] [Indexed: 12/31/2022]
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Dose-dependent effect of sulfur dioxide on brain damage induced by recurrent febrile seizures in rats. Neurosci Lett 2013; 563:149-54. [PMID: 24373994 DOI: 10.1016/j.neulet.2013.12.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/15/2013] [Accepted: 12/18/2013] [Indexed: 11/23/2022]
Abstract
Sulfur dioxide (SO2) regulates many physiological processes. Little is known about its roles in neurological disorders. In this study, we investigated the role of endogenous SO2 in the development of febrile seizures (FS) and related brain damages. In the rat model of recurrent FS, we found that endogenous SO2 in the plasma and hippocampus was increased, accompanied by upregulation of aspartate amino-transferase 1 (AAT1) and AAT2, and neuronal apoptosis and mossy fiber sprouting (MFS) in the hippocampus. Preconditioning with low concentration of SO2 (1-10 μmol/kg) alleviated the neuronal damage, and attenuated neuronal apoptosis and MFS, whereas preconditioning with high concentration of SO2 (100 μmol/kg) or inhibition of AAT aggravated the neuronal damage, and promoted neuronal apoptosis and MFS in hippocampus of rats with recurrent FS. These data indicate that endogenous SO2 is involved in the development of FS and related brain damage. Preconditioning with low concentration of SO2 may protect neurons from toxicity caused by FS.
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76
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The ERK1/2 signaling pathway is involved in sulfur dioxide preconditioning-induced protection against cardiac dysfunction in isolated perfused rat heart subjected to myocardial ischemia/reperfusion. Int J Mol Sci 2013; 14:22190-201. [PMID: 24217229 PMCID: PMC3856059 DOI: 10.3390/ijms141122190] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 11/17/2022] Open
Abstract
Ischemia/reperfusion injury (IRI) occurs frequently during reperfusion of ischemic myocardium, and preconditioning has been regarded as one of the best strategies to prevent myocardial injury during the ischemia/reperfusion process. Our previous studies indicated that a small dose of sulfur dioxide (SO2) used as preconditioning exerts cardioprotection. However, the mechanisms underlying the cardioprotection remain unclear. The present study was designed to examine if the extracellular regulated protein kinases 1/2 (ERK1/2) signaling pathway mediated protection against cardiac dysfunction after SO2 preconditioning in isolated rat hearts subjected to ischemia/reperfusion (I/R). Langendorff heart perfusion was performed in vitro, where 56 male Wistar rats were randomly divided into seven groups: control group, 5 μmol/L SO2 group (S5), 2-(2-Amino-3-methoxyphenyl)-4H-1-benzopyran-4-one (PD98059) + 5 μmol/L SO2 (PD98059 + S5) group, PD98059 group, I/R group, 5 μmol/L SO2 + I/R (S5 + I/R) group and PD98059 + 5 μmol/L SO2 + I/R (PD98059 + S5 + I/R) group. Cardiac function and myocardial phosphorylated ERK1/2 protein were measured. We found that I/R in isolated rat heart resulted in cardiac dysfunction with a significant increase in phosphorylated ERK1/2 protein. SO2 preconditioning markedly suppressed phosphorylated ERK1/2 protein and improved cardiac function in isolated rat heart with I/R (p < 0.05). However, pre-treatment with PD98059 could prevent the above effects of SO2 preconditioning. In conclusion, SO2 preconditioning protected against cardiac dysfunction in isolated rat heart subjected to I/R via suppression of the over-activation of the ERK1/2 signaling pathway.
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77
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Effect of aqueous extract of sanweitanxiang powder on calcium homeostasis protein expression in ischemic-reperfusion injury rat heart. J TRADIT CHIN MED 2013; 33:355-60. [PMID: 24024332 DOI: 10.1016/s0254-6272(13)60178-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To investigate the underlying mechanism of reduced myocardial ischemia-reperfusion (I/R) injury in rats using the traditional Tibetan medicine Sanweitanxiang powder (SWTX). METHODS Rats were randomly divided into six groups (n = 10) as follows: (a) propranolol dinitrate control group, given propranolol dinitrate 0.02 g/kg for 10 days before I/R, (b) SWTX with a high dose group, given SWTX 1.5 g/kg for 10 days before I/R, (c) SWTX with a medium dose group, given SWTX 1.25 g/kg for 10 days before I/R, (d) sham group (Sham), in which the rat heart was exposed by pericardiotomy but without I/R, (e) SWTX with a low dose group, given SWTX 1.0 g/kg for 10 days before I/R, and (f) I/R injury group. Rats were intragastrically pretreated with propranolol dinitrate or SWTX. After that, the operation to cause ischemia and reperfusion was conducted. The histopathologic changes of rat hearts were observed by hematoxylin and eosin staining and transmission electron microscopy. Ca2+ homeostasis protein expression was determined by western blot. RESULTS After SWTX pretreatment, the development of ultrastructural pathological changes from IR injury was attenuated. A decrease in the expression of B-cell lymphoma 2 associated X protein, and an increase in the expression of B-cell lymphoma 2 were observed. An increased activation of extracellular signal regulated kinases were found. Compared with the sham group, the expression of sarcoplasmic reticulum calcium-ATPase, phospholamban, and calsequestrin were all up-regulated after pretreatment with SWTX. CONCLUSION The protective mechanism of SWTX pretreatment on myocardial I/R injury might be related to its effect on maintaining the balance of calcium homeostasis in rat heart.
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78
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Zhao Q, Hu X, Shao L, Wu G, Du J, Xia J. LipoxinA4 attenuates myocardial ischemia reperfusion injury via a mechanism related to downregulation of GRP-78 and caspase-12 in rats. Heart Vessels 2013; 29:667-78. [PMID: 24129401 PMCID: PMC4160563 DOI: 10.1007/s00380-013-0418-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 09/27/2013] [Indexed: 01/21/2023]
Abstract
This study aims to determine the effect of Lipoxin (LX)A4 on myocardial ischemia reperfusion injury (MIRI) in rats and the related molecular mechanisms. Male SD rats were divided into six groups. The sham operation groups (groups C1, C2) were injected with 2 ml/kg normal saline before and after coronary artery threading, respectively. The MIRI group (groups I/R1, I/R2) were injected with normal saline before and after MIRI, respectively. The LXA4 groups (groups LX1, LX2) were injected with LXA4 before and after MIRI treatment, respectively. The hematoxylin–eosin staining and ultrastructural changes of cardiac muscle were observed. The serum levels of interleukin (IL)-1β, IL-6, IL-10, tumor necrosis factor (TNF) α and cardiac troponin I (cTnI) were measured before open-chest operation and at the end of the experiment. The mRNA and protein levels of GRP-78 and caspase-12 were determined in each group. The myocardial cell apoptosis, myeloperoxidase (MPO), superoxide dismutase (SOD), and malondialdehyde (MDA) contents were detected. The mRNA and protein levels of GRP-78 and caspase-12, the apoptosis, the serum IL-1β, IL-6, IL-10, TNF-α, and cTnI concentrations, MPO, SOD, MDA contents were significantly increased in groups I/R1, I/R2, LX1, and LX2 compared with those in groups C1 and C2 (P < 0.05). The mRNA and protein expression levels of GRP-78 and caspase-12 in groups LX1 and LX2 were lower than those in groups I/R1 and I/R2. Compared with group I/R1 and I/R2, the myocardial neutrophil infiltration and ultrastructure damage were significantly less in groups LX1 and LX2. GRP-78 and IL-10 are expressed both extracellularly and intracellularly, but are mainly expressed in the cytoplasms. In the absence of MIRI, LXA4 has no detectable effect on GRP-78 and caspase-12 expression. Before and after MIRI, application of LXA4 significantly inhibits neutrophil activation, and attenuates myocardial inflammatory injury and oxidative stress. LXA4 downregulates the mRNA and protein expression of GRP-78 and caspase-12. LXA4 could play a role in myocardial protection via a mechanism related to downregulation of GRP-78 and caspase-12, and inhibition of apoptosis.
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Affiliation(s)
- Qifeng Zhao
- Department of Cardiovascular and Thoracic Surgery, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 College Western Road, Wenzhou, 325027, People's Republic of China,
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Endoplasmic Reticulum Stress Pathway Involvement in Local and Remote Myocardial Ischemic Conditioning. Shock 2013; 39:433-9. [DOI: 10.1097/shk.0b013e31828e4f80] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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80
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Jin HF, Wang Y, Wang XB, Sun Y, Tang CS, Du JB. Sulfur dioxide preconditioning increases antioxidative capacity in rat with myocardial ischemia reperfusion (I/R) injury. Nitric Oxide 2013; 32:56-61. [PMID: 23629152 DOI: 10.1016/j.niox.2013.04.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 02/23/2013] [Accepted: 04/22/2013] [Indexed: 11/18/2022]
Abstract
BACKGROUND The study was designed to explore if sulfur dioxide (SO2) preconditioning increased antioxidative capacity in rat with myocardial ischemia reperfusion (I/R) injury. METHODS The myocardial I/R model was made by left coronary artery ligation for 30min and reperfusion for 120min in rats. Myocardial infarct size and plasma lactate dehydrogenase (LDH) and creatine kinase (CK) activities, plasma superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px) and glutathione (GSH) changes were detected for the rats. The contents of myocardial hydrogen sulfide (H2S) and nitric oxide (NO) were measured. Myocardial protein expressions of SOD1, SOD2, cystathionine γ-lyase (CSE) and iNOS were tested using Western blot. RESULTS Myocardial infarction developed and plasma CK and LDH activities were significantly increased in I/R group compared with those in control group, but SO2 preconditioning significantly reduced myocardial infarct size, and plasma CK and LDH activities. SO2 preconditioning successfully increased plasma SOD, GSH and GSH-Px levels and myocardial SOD1 protein expression, but decreased MDA level in rats of I/R group. Compared with controls, the myocardial H2S level and CSE expression were decreased after I/R, but myocardial NO level and iNOS expression were increased. With the treatment of SO2, myocardial H2S level and CSE expression were increased, but myocardial NO level and iNOS expression were decreased compared with those in I/R group. CONCLUSIONS SO2 preconditioning could significantly reduce I/R-induced myocardial injury in vivo in association with increased myocardial antioxidative capacity, upregulated myocardial H2S/CSE pathway but downregulated NO/iNOS pathway.
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Affiliation(s)
- Hong fang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, PR China
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81
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Zhao MM, Yang JY, Wang XB, Tang CS, Du JB, Jin HF. The PI3K/Akt pathway mediates the protection of SO(2) preconditioning against myocardial ischemia/reperfusion injury in rats. Acta Pharmacol Sin 2013; 34:501-6. [PMID: 23524571 DOI: 10.1038/aps.2012.204] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
AIM To explore the mechanisms underlying the protection by SO2 preconditioning against rat myocardial ischemia/reperfusion (I/R) injury. METHODS Male Wistar rats underwent 30-min left coronary artery ligation followed by 120-min reperfusion. An SO2 donor (1 μmol/kg) was intravenously injected 10 min before the ischemia, while LY294002 (0.3 mg/kg) was intravenously injected 30 min before the ischemia. Plasma activities of LDH and CK were measured with an automatic enzyme analyzer. Myocardial infarct size was detected using Evans-TTC method. The activities of caspase-3 and -9 in myocardium were assayed using a commercial kit, and the levels of p-Akt, Akt, PI3K and p-PI3K were examined with Western blotting. RESULTS Pretreatment with SO2 significantly reduced the myocardial infarct size and plasma LDH and CK activities, as well as myocardial caspase-3 and -9 activities in the rats. Furthermore, the pretreatment significantly increased the expression levels of myocardial p-Akt and p-PI3K p85. Administration of the PI3K inhibitor LY294002 blocked all the effects induced by SO2 pretreatment. CONCLUSION The results suggest that the PI3K/Akt pathway mediates the protective effects of SO2 preconditioning against myocardial I/R injury in rats.
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82
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Luo L, Liu D, Tang C, Du J, Liu AD, Holmberg L, Jin H. Sulfur dioxide upregulates the inhibited endogenous hydrogen sulfide pathway in rats with pulmonary hypertension induced by high pulmonary blood flow. Biochem Biophys Res Commun 2013; 433:519-25. [PMID: 23524260 DOI: 10.1016/j.bbrc.2013.03.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 03/06/2013] [Indexed: 11/20/2022]
Abstract
Pulmonary hypertension (PH) is an important pathophysiological process in the development of many diseases. However, the mechanism responsible for the development of PH remains unknown. The objective of the study was to explore the possible impact of sulfur dioxide (SO2) on the endogenous hydrogen sulfide (H2S) pathway in rats with PH induced by high pulmonary blood flow. Compared with sham group, the systolic pulmonary artery pressure (SPAP) in the shunt group was significantly increased, along with the increased percentage of muscularized arteries and partially muscularized arteries of small pulmonary arteries. Compared with the shunt group, SPAP in the shunt+SO2 group was significantly decreased, and the percentage of muscularized pulmonary arteries was also decreased. Additionally, rats that developed PH had significantly lower levels of SO2 concentration, aspartate aminotransferase (AAT) activity, protein and mRNA expressions of AAT2 in pulmonary tissues. Administration of an SO2 donor could alleviate the elevated pulmonary arterial pressure and decrease the muscularization of pulmonary arteries. At the same time, it increased the H2S production, protein expression of cystathionine-γ-lyase (CSE), mRNA expression of CSE, mercaptopyruvate transsulphurase (MPST) and cystathionine-β-synthase (CBS) in the pulmonary tissue of the rats. The results suggested that endogenous SO2/AAT2 pathway and the endogenous H2S production were downregulated in rats with PH induced by high pulmonary blood flow. However, SO2 could reduce pulmonary arterial pressure and improve the pulmonary vascular pathological changes in association with upregulating endogenous H2S pathway.
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Affiliation(s)
- Liman Luo
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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83
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The biological effect of endogenous sulfur dioxide in the cardiovascular system. Eur J Pharmacol 2011; 670:1-6. [DOI: 10.1016/j.ejphar.2011.08.031] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 08/14/2011] [Accepted: 08/27/2011] [Indexed: 11/21/2022]
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84
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Sulfur dioxide inhibits excessively activated endoplasmic reticulum stress in rats with myocardial injury. Heart Vessels 2011; 27:505-16. [DOI: 10.1007/s00380-011-0192-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 09/09/2011] [Indexed: 01/12/2023]
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