1
|
Han Y, Li CF, Zhang PZ, Yang XQ, Min JX, Wu QH, Xie YY, Jin DZ, Wang ZT, Shao F, Quan HX. Protective effects of 5(S)-5-carboxystrictosidine on myocardial ischemia-reperfusion injury through activation of mitochondrial KATP channels. Eur J Pharmacol 2022; 920:174811. [PMID: 35182546 DOI: 10.1016/j.ejphar.2022.174811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 01/15/2022] [Accepted: 02/08/2022] [Indexed: 12/12/2022]
Abstract
5(S)-5-carboxystrictosidine (5-CS) is a compound found in Mappianthus iodoides Hand.-Mazz., root, a traditional Chinese medicine used for the treatment of coronary artery disease. In this study, we investigated whether 5-CS protects heart against I/R injury. Sprague-Dawley rats were treated with 5-CS intraperitoneally for 7 days before the experiment. Hearts were perfused for 20 min global ischemia and 180 min reperfusion. 5-CS significantly inhibited an increase in the post-ischemic left ventricular end-diastolic pressure (LVEDP) and improved the post-ischemic left ventricular developed pressure (LVDP), dP/dt maximum and dP/dt minimum rates of pressure change, and coronary flow as compared with sham group. Pretreatment with 5-hydroxydecanoic acid (5-HD), an inhibitor of mitochondrial KATP channel, for 10 min before ischemia attenuated the improvement of LVEDP, LVDP, dP/dt maximum and dP/dt minimum rates of pressure change, and coronary flow induced by 5-CS. 5-CS markedly decreased the infarct size and attenuated the increased lactate dehydrogenase (LDH) level in effluent during reperfusion. Pretreatment with 5-HD also blocked these protective effects of 5-CS. 5-CS increased Mn-SOD, catalase, and HO-1 levels decreased by I/R injury and pretreatment of 5-HD blocked the 5-CS effects. Increases in Bax, cleaved caspase-3 and cytochrome c levels, caspase-3 and caspase-9 activity, and decrease in Bcl-2 level by I/R injury were attenuated by 5-CS treatment and pretreatment of 5-HD blocked its effects. These results suggest that the protective effects of 5-CS against myocardial I/R injury may be partly related to activating antioxidant enzymes and suppressing apoptosis through opening mitochondrial KATP channels.
Collapse
Affiliation(s)
- Ying Han
- Key Laboratory of Psychology of TCM and Brain Science, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Chuan Feng Li
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Pu Zhao Zhang
- Key Laboratory of Innovation Drug and Efficient Energy-saving Pharmaceutical Equipment, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Xiao Qi Yang
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Jian Xin Min
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Qing Hua Wu
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Yong Yan Xie
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - De Zhong Jin
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Zeng Tao Wang
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - Feng Shao
- Key Laboratory of Innovation Drug and Efficient Energy-saving Pharmaceutical Equipment, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China
| | - He Xiu Quan
- Department of Physiology, College of Chinese Medicine and Life Science, Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi province, China.
| |
Collapse
|
2
|
Tourki B, Matéo P, Morand J, Elayeb M, Godin-Ribuot D, Marrakchi N, Belaidi E, Messadi E. Lebetin 2, a Snake Venom-Derived Natriuretic Peptide, Attenuates Acute Myocardial Ischemic Injury through the Modulation of Mitochondrial Permeability Transition Pore at the Time of Reperfusion. PLoS One 2016; 11:e0162632. [PMID: 27618302 PMCID: PMC5019389 DOI: 10.1371/journal.pone.0162632] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/25/2016] [Indexed: 12/28/2022] Open
Abstract
Cardiac ischemia is one of the leading causes of death worldwide. It is now well established that natriuretic peptides can attenuate the development of irreversible ischemic injury during myocardial infarction. Lebetin 2 (L2) is a new discovered peptide isolated from Macrovipera lebetina venom with structural similarity to B-type natriuretic peptide (BNP). Our objectives were to define the acute cardioprotective actions of L2 in isolated Langendorff-perfused rat hearts after regional or global ischemia-reperfusion (IR). We studied infarct size, left ventricular contractile recovery, survival protein kinases and mitochondrial permeability transition pore (mPTP) opening in injured myocardium. L2 dosage was determined by preliminary experiments at its ability to induce cyclic guanosine monophosphate (cGMP) release without changing hemodynamic effects in normoxic hearts. L2 was found to be as effective as BNP in reducing infarct size after the induction of either regional or global IR. Both peptides equally improved contractile recovery after regional IR, but only L2 increased coronary flow and reduced severe contractile dysfunction after global ischemia. Cardioprotection afforded by L2 was abolished after isatin or 5-hydroxydecanote pretreatment suggesting the involvement of natriuretic peptide receptors and mitochondrial KATP (mitoKATP) channels in the L2-induced effects. L2 also increased survival protein expression in the reperfused myocardium as evidenced by phosphorylation of signaling pathways PKCε/ERK/GSK3β and PI3K/Akt/eNOS. IR induced mitochondrial pore opening, but this effect was markedly prevented by L2 treatment. These data show that L2 has strong cardioprotective effect in acute ischemia through stimulation of natriuretic peptide receptors. These beneficial effects are mediated, at least in part, by mitoKATP channel opening and downstream activated survival kinases, thus delaying mPTP opening and improving IR-induced mitochondrial dysfunction.
Collapse
Affiliation(s)
- Bochra Tourki
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
- Université Carthage Tunis, Bizerte, Tunisia
| | - Philippe Matéo
- Laboratoire de Signalisation et Physiopathologie Cardiovasculaire, UMR-S 1180, Faculté de Pharmacie, Université Paris Sud, Paris, France
| | - Jessica Morand
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Mohamed Elayeb
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - Diane Godin-Ribuot
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Naziha Marrakchi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - Elise Belaidi
- Laboratoire d’Hypoxie et Physiopathologie Cardiaque, Inserm U1042, Faculté de Pharmacie, Université Grenoble Alpes, Grenoble, France
| | - Erij Messadi
- Laboratoire des Venins et Biomolécules Thérapeutiques (LR11IPT08) et Plateforme de Physiologie et de Physiopathologie Cardiovasculaires (P2C), Institut Pasteur de Tunis, Université Tunis El Manar, Tunis, Tunisia
- * E-mail:
| |
Collapse
|
3
|
Li M, Xue L, Sun H, Xu S. Myocardial Protective Effects of L-Carnitine on Ischemia-Reperfusion Injury in Patients With Rheumatic Valvular Heart Disease Undergoing Cardiac Surgery. J Cardiothorac Vasc Anesth 2016; 30:1485-1493. [PMID: 27569824 DOI: 10.1053/j.jvca.2016.06.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Indexed: 01/17/2023]
Abstract
OBJECTIVES The authors used L-carnitine as an ingredient in cardioplegic solution during valve replacement surgery to investigate the protective effect of L-carnitine on myocardial ischemia-reperfusion injury (MIRI) and its possible mechanism. DESIGN Prospective, randomized study. SETTING A tertiary-care hospital. PARTICIPANTS The study comprised 90 patients undergoing valve replacement under cardiopulmonary bypass. INTERVENTIONS Patients were divided randomly into 3 groups. L-carnitine was added to the crystalloid cardioplegic solution for experimental group 1 (3 g/L) and experimental group 2 (6 g/L), whereas no L-carnitine was used in the control group. The remainder of the treatment was identical for all 3 groups. MEASUREMENTS AND MAIN RESULTS Serum was collected from each patient 1 hour before the surgery and at 2, 6, 24, and 72 hours after unclamping the aorta, and tissue samples were obtained before cardiac arrest and after unclamping the aorta. The postoperative levels of serum aspartate aminotransferase, creatine kinase, creatine kinase-MB isozyme, and lactic acid dehydrogenase and the apoptotic index were all lower in the 2 experimental groups than those in the control group. In addition, each of the aforementioned serum enzyme levels and the apoptotic index in all 3 groups significantly increased after unclamping the aorta compared with baseline levels taken before surgery. Bcl-2 expression was higher and Bax was lower in the 2 experimental groups compared with those of the control group after unclamping the aorta. However, there was no significant difference in all the postoperative indices between the 2 experimental groups. CONCLUSION L-carnitine may reduce cardiopulmonary bypass-induced myocardial apoptosis through modulating the expressions of Bcl-2 and Bax, resulting in a protective effect from MIRI.
Collapse
Affiliation(s)
- Ming Li
- Department of *Cardiovascular Surgery, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an Shaanxi, China
| | - Li Xue
- †Department of Laboratory, The Second Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an Shaanxi, China
| | - Haifeng Sun
- ‡Tumour Hospital of Shaanxi Province, Xi'an Shaanxi, China
| | - Suochun Xu
- Department of *Cardiovascular Surgery, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an Shaanxi, China.
| |
Collapse
|
4
|
Gao S, Oh YB, Park BM, Park WH, Kim SH. Urotensin II protects ischemic reperfusion injury of hearts through ROS and antioxidant pathway. Peptides 2012; 36:199-205. [PMID: 22609449 DOI: 10.1016/j.peptides.2012.05.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Revised: 05/08/2012] [Accepted: 05/08/2012] [Indexed: 12/19/2022]
Abstract
Urotensin II (UII) is a vasoactive peptide which is bound to a G protein-coupled receptor. UII and its receptor are upregulated in ischemic and chronic hypoxic myocardium, but the effect of UII on ischemic reperfusion (I/R) injury is still controversial. The aim of the present study was to investigate whether UII protects heart function against I/R injury. Global ischemia was performed using isolated perfused Langendorff hearts of Sprague-Dawley rats. Hearts were perfused with Krebs-Henseleit buffer for 20min pre-ischemic period followed by a 20min global ischemia and 50min reperfusion. Pretreatment with UII (10nM) for 10min increased recovery percentage of the post-ischemic left ventricular developed pressure and ±dp/dt, and decreased post-ischemic left ventricular end-diastolic pressure as compared with I/R group. UII decreased infarct size and an increased lactate dehydrogenase level during reperfusion. Cardioprotective effects of UII were attenuated by pretreatment with UII receptor antagonist. The hydrogen peroxide activity was increased in UII-treated heart before ischemia. The Mn-SOD, catalase, heme oxygenase-1 and Bcl-2 levels were increased, and the Bax and caspase-9 levels were decreased in UII-treated hearts. These results suggest that UII has cardioprotective effects against I/R injury partly through activating antioxidant enzymes and reactive oxygen species.
Collapse
Affiliation(s)
- Shan Gao
- Department of Physiology, Research Center for Endocrine Sciences, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | | | | | | | | |
Collapse
|
5
|
Zhang SY, Cai ZX, Li P, Cai CY, Qu CL, Guo HS. Effect of dendroaspis natriuretic peptide (DNP) on L-type calcium channel current and its pathway. ACTA ACUST UNITED AC 2010; 164:120-5. [PMID: 20594955 DOI: 10.1016/j.regpep.2010.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Revised: 05/05/2010] [Accepted: 05/30/2010] [Indexed: 10/19/2022]
Abstract
Dendroaspis natriuretic peptide (DNP), a newly-described natriuretic peptide, relaxes gastrointestinal smooth muscle. L-type calcium channel currents play an important role in regulating smooth muscle contraction. The effect of DNP on L-type calcium channel currents in gastrointestinal tract is still unclear. This study was designed to investigate the effect of DNP on barium current (I(Ba)) through the L-type calcium channel in gastric antral myocytes of guinea pigs and cGMP-pathway mechanism. The whole-cell patch-clamp technique was used to record L-type calcium channel currents. The content of cGMP in guinea pig gastric antral smooth muscle and perfusion solution was measured using radioimmunoassay. DNP markedly enhanced cGMP levels in gastric antral smooth muscle tissue and in perfusion medium. DNP concentration-dependently inhibited I(Ba) in freshly isolated guinea pig gastric antral circular smooth muscle cells (SMCs) of guinea pigs. DNP-induced inhibition of I(Ba) was partially blocked by LY83583, an inhibitor of guanylate cyclase. KT5823, a cGMP-dependent protein kinase (PKG) inhibitor, almost completely blocked DNP-induced inhibition of I(Ba). However, DNP-induced inhibition of I(Ba) was potentiated by zaprinast, an inhibitor of cGMP-sensitive phosphodiesterase. Taken together, DNP inhibits L-type calcium channel currents via pGC-cGMP-PKG-dependent signal pathway in gastric antral myocytes of guinea pigs.
Collapse
Affiliation(s)
- Shu-Ying Zhang
- Department of Internal Medicine, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China.
| | | | | | | | | | | |
Collapse
|
6
|
Piao CS, Gao S, Lee GH, Kim DS, Park BH, Chae SW, Chae HJ, Kim SH. Sulforaphane protects ischemic injury of hearts through antioxidant pathway and mitochondrial KATP channels. Pharmacol Res 2010; 61:342-8. [DOI: 10.1016/j.phrs.2009.11.009] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 11/17/2009] [Accepted: 11/17/2009] [Indexed: 10/20/2022]
|
7
|
Wen QP, Cai CY, Li P, Cai ZX, Cheng L, Qi QH, Guo HS. Role of potassium channels in Dendroaspis natriuretic peptide-induced inhibition of gastric motility. Shijie Huaren Xiaohua Zazhi 2010; 18:217-221. [DOI: 10.11569/wcjd.v18.i3.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the role of potassium channels in Dendroaspis natriuretic peptide (DNP)-induced relaxation of gastric antral circular smooth muscle of guinea pigs.
METHODS: The spontaneous contraction of gastric antral circular muscle of guinea pigs was recorded using a four-channel physiograph. The contents of cyclic guanosine monophosphate (cGMP) in gastric antral smooth muscle tissue and in perfusion medium were measured by radioimmunoassay. The whole cell patch-clamp technique was used to record calcium-activated potassium current (IK(Ca)) and delayed rectifier potassium current (IK(V)) in gastric myocytes isolated by collagenase digestion.
RESULTS: DNP inhibited the spontaneous contraction of gastric antral circular smooth muscle in a dose-dependent manner. DNP at concentrations of 1, 10, 100 and 1 000 nmol/L reduced the amplitude of the spontaneous contraction by 35% ± 6%, 54% ± 6%, 78% ± 13% and 94% ± 6%, respectively. LY83583, an inhibitor of soluble guanylate cyclase, significantly blocked DNP-induced relaxation of gastric antral circular smooth muscle (reduced amplitude: 42% ± 6% vs 60% ± 4%, P < 0.05). In contrast, zaprinast, a cGMP-sensitive phosphodiesterase inhibitor, potentiated DNP-induced relaxation of gastric antral circular smooth muscle (reduced amplitude: 72% ± 7% vs 58% ± 5%, P < 0.05). DNP markedly enhanced cGMP levels in gastric antral smooth muscle tissue and in perfusion medium. DNP increased the amplitude of IK(Ca) at 60 mV by 62.31% ± 3.22%, but decreased the amplitude of IK(V) at 60 mV by 18% ± 2.3% in gastric antral circular myocytes of guinea pigs.
CONCLUSION: DNP relaxes the gastric antral circular smooth muscle of guinea pigs by increasing IK(Ca) in a cGMP-dependent pathway. IK(V) may play a critical role in regulating resting membrane potential in gastric antral circular myocytes of guinea pigs.
Collapse
|
8
|
Cai CY, Cai ZX, Gu XY, Shan LJ, Wang YX, Yin XZ, Qi QH, Guo HS. Dendroaspis natriuretic peptide relaxes gastric antral circular smooth muscle of guinea-pig through the cGMP/cGMP-dependent protein kinase pathway. World J Gastroenterol 2008; 14:5461-6. [PMID: 18803360 PMCID: PMC2744167 DOI: 10.3748/wjg.14.5461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To systematically investigate if cGMP/cGMP-dependent protein kinase G (PKG) signaling pathway may participate in dendroaspis natriuretic peptide (DNP)-induced relaxation of gastric circular smooth muscle.
METHODS: The content of cGMP in guinea pig gastric antral smooth muscle tissue and perfusion solution were measured using radioimmunoassay; spontaneous contraction of gastric antral circular muscles recorded using a 4-channel physiograph; and Ca2+-activated K+ currents (IK(Ca)) and spontaneous transient outward currents (STOCs) in isolated gastric antral myocytes were recorded using the whole-cell patch clamp technique.
RESULTS: DNP markedly enhanced cGMP levels in gastric antral smooth muscle tissue and in the perfusion medium. DNP induced relaxation in gastric antral circular smooth muscle, which was inhibited by KT5823, a cGMP-dependent PKG inhibitor. DNP increased IK(Ca). This effect was almost completely blocked by KT5823, and partially blocked by LY83583, an inhibitor of guanylate cyclase to change the production of cGMP. DNP also increased STOCs. The effect of DNP on STOCs was abolished in the presence of KT5823, but not affected by KT-5720, a PKA-specific inhibitor.
CONCLUSION: DNP activates IK(Ca) and relaxes guinea-pig gastric antral circular smooth muscle via the cGMP/PKG-dependent singling axis instead of cAMP/PKA pathway.
Collapse
|
9
|
Guo HS, Cai ZX, Wu TH, Xu J, Qiu Y, Xu WX. Inhibitory effect of dendroaspis natriuretic peptide on spontaneous contraction in gastric antral circular smooth muscles of guinea pigs. Acta Pharmacol Sin 2007; 28:1797-802. [PMID: 17959031 DOI: 10.1111/j.1745-7254.2007.00703.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
AIM To determine whether the natriuretic peptide receptor (NPR) is present in the stomach of guinea pigs and to investigate the effect of dendroaspis natriuretic peptide (DNP) on the gastric motility of guinea pigs and its mechanism. METHODS The distribution of the NPR was analyzed by autoradioimmunography. The spontaneous contraction of gastric antral circular muscles of guinea pigs was recorded by a 4-channel physiograph. The whole cell patch-clamp technique was introduced to record calcium-activated potassium currents in the gastric myocytes isolated by collagenase. RESULTS The NPR existed in the gastric fundus, gastric body, and gastric antrum of guinea pigs, and its density was largest in the gastric antrum. DNP inhibited spontaneous contraction and exhibited a dose-dependent manner. The DNP-induced inhibition was diminished by LY83583 (a guanylate cyclase inhibitor) and was potentiated by zaprinast (a cGMP-sensitive phosphoesterase inhibitor). The inhibitory effect of DNP on spontaneous contraction was also inhibited by tetraethylammonium (a non-selective potassium channel blocker); 10 nmol/L DNP increased the calcium-activated potassium currents in the gastric circular myocytes of guinea pigs. CONCLUSION The NPR is most common in the gastric antrum of guinea pigs. DNP significantly inhibits gastric motility in the gastric antrum of guinea pigs. The inhibitory effect occurs via a cGMP-dependent pathway, and a calcium-activated potassium channel may be also involved in the relaxation induced by DNP in gastric antral circular smooth muscles.
Collapse
Affiliation(s)
- Hui-shu Guo
- Centralab and Department of Neurology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.
| | | | | | | | | | | |
Collapse
|