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Zhang Y, Ding X, Yuan C, Yang Y, Zhang Q, Yao J, Zhang Y, Wang J, Dai Y. Anti-Inflammatory Responses Produced with Nippostrongylus brasiliensis-Derived Uridine via the Mitochondrial ATP-Sensitive Potassium Channel and Its Anti-Atherosclerosis Effect in an Apolipoprotein E Gene Knockout Mouse Model. Biomolecules 2024; 14:672. [PMID: 38927075 PMCID: PMC11201709 DOI: 10.3390/biom14060672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Atherosclerosis (AS) has become the leading cause of cardiovascular disease worldwide. Our previous study had observed that Nippostrongylus brasiliensis (Nb) infection or its derived products could inhibit AS development by inducing an anti-inflammatory response. We performed a metabolic analysis to screen Nb-derived metabolites with anti-inflammation activity and evaluated the AS-prevention effect. We observed that the metabolite uridine had higher expression levels in mice infected with the Nb and ES (excretory-secretory) products and could be selected as a key metabolite. ES and uridine interventions could reduce the pro-inflammatory responses and increase the anti-inflammatory responses in vitro and in vivo. The apolipoprotein E gene knockout (ApoE-/-) mice were fed with a high-fat diet for the AS modeling. Following the in vivo intervention, ES products or uridine significantly reduced serum and liver lipid levels, alleviated the formation of atherosclerosis, and reduced the pro-inflammatory responses in serum or plaques, while the anti-inflammatory responses showed opposite trends. After blocking with 5-HD (5-hydroxydecanoate sodium) in vitro, the mRNA levels of M2 markers were significantly reduced. When blocked with 5-HD in vivo, the degree of atherosclerosis was worsened, the pro-inflammatory responses were increased compared to the uridine group, while the anti-inflammatory responses decreased accordingly. Uridine, a key metabolite from Nippostrongylus brasiliensis, showed anti-inflammatory and anti-atherosclerotic effects in vitro and in vivo, which depend on the activation of the mitochondrial ATP-sensitive potassium channel.
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Affiliation(s)
- Yingshu Zhang
- School of Public Health, Nanjing Medical University, Longmian Avenue 101, Nanjing 211166, China
| | - Xin Ding
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
| | - Caiyi Yuan
- School of Public Health, Nanjing Medical University, Longmian Avenue 101, Nanjing 211166, China
| | - Yougui Yang
- School of Public Health, Nanjing Medical University, Longmian Avenue 101, Nanjing 211166, China
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
- Department of Parasitic Disease Control, Lishui District Center for Disease Control and Prevention, Middle Street 17, Nanjing 211200, China
| | - Qiang Zhang
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
| | - Jiakai Yao
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
| | - Ying Zhang
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
| | - Junhong Wang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing 210029, China
| | - Yang Dai
- School of Public Health, Nanjing Medical University, Longmian Avenue 101, Nanjing 211166, China
- Jiangsu Provincial Medical Key Laboratory, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Institute of Parasitic Diseases, Yang Xiang 117, Wuxi 214064, China
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2
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Guanghui H, Zhimeng L, Yina S, Chenghua L. Nitric oxide synthase regulates coelomocytes apoptosis through the NF-κB signaling pathway in the sea cucumber Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109027. [PMID: 37633344 DOI: 10.1016/j.fsi.2023.109027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/28/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Nitric oxide synthase (NOS) was initially discovered to participate in the generation of nitric oxide as a defense mechanism against pathogenic infections. In recent years, it has been found that NOS plays a pivotal role in regulating apoptosis and inflammation in mammals. However, the mechanisms underlying NOS-mediated apoptosis in invertebrates remain largely unclear. In this study, we found that the Apostichopus japonicus NOS (AjNOS) expression levels were upregulated by 2.20-fold and 3.46-fold after being challenged with Vibrio splendidus at concentrations of 107 CFU mL-1 and 108 CFU mL-1 for 12 h compared to the control group, respectively. Under these conditions, the rates of coelomocytes apoptosis were increased from 14.7% to 32.7% and 45.4%, respectively. Treatment with NOS inhibitor (l-NAME) resulted in a reduction of coelomocytes apoptosis rates from 32.6% to 26.5% in V. splendidus (107 CFU mL-1) groups and from 42.3% to 33.3% in V. splendidus (108 CFU mL-1) groups, respectively. NOS has been reported to regulate apoptosis through IκBα phosphorylation. Simultaneously, exposure to V. splendidus in conjunction with l-NAME resulted in down-regulation of AjIκBα phosphorylation levels compared to the group infected solely with V. splendidus. Furthermore, immunofluorescence analysis revealed that treatment with l-NAME or interference of AjNOS using siRNA inhibited translocation of AjNF-κB/p65 (RelA) into the nucleus. Previous studies have shown that NF-κB can down-regulate expression levels of Bcl-2 family members, which is an important pathway for regulating apoptosis. In the present study, treatment with l-NAME was found to promote anti-apoptotic AjBcl-2 mRNA increase to 1.41-fold and protein expression increase to 1.86-fold at 12 h post V. splendidus challenge. However, these effects were suppressed by PMA (an NF-κB activator). Overall, our findings demonstrate that AjNOS regulates coelomocytes apoptosis induced by V. splendidus through activation of the AjNF-κB signaling pathway and down-regulation of AjBcl-2 in A. japonicus.
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Affiliation(s)
- Han Guanghui
- State-Province Joint Laboratory of Marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Lv Zhimeng
- State-Province Joint Laboratory of Marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Shao Yina
- State-Province Joint Laboratory of Marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Li Chenghua
- State-Province Joint Laboratory of Marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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Harb I, Ashour H, Rashed LA, Mostafa A, Samir M, Aboulhoda BE, El-Hanbuli H, Rashwan E, Mahmoud H. Nicorandil mitigates amiodarone-induced pulmonary toxicity and fibrosis in association with the inhibition of lung TGF-β1/PI3K/Akt1-p/mTOR axis in rats. Clin Exp Pharmacol Physiol 2023; 50:96-106. [PMID: 36208078 DOI: 10.1111/1440-1681.13728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 09/16/2022] [Accepted: 09/29/2022] [Indexed: 12/13/2022]
Abstract
The long-term side effect of the antiarrhythmic drug, amiodarone (AMIO), such as lung toxicity, remains a critical clinical issue. The previous knowledge denotes diverse antioxidant, anti-inflammatory, and antifibrotic properties of the anti-anginal drug, nicorandil (NI). Therefore, we aimed to investigate the possible protective effect of NI on pulmonary tissue remodelling following AMIO-induced lung toxicity. The included rats were assigned into four equal groups (n = 8): (1) control, (2) control group that received NI 10 mg kg-1 day-1 , (3) model group that received AMIO in a dose of 60 mg kg-1 day-1 , and (4) treated group (AMIO-NI) that were treated with AMIO plus NI as shown above. Drug administration continued for 10 weeks. AMIO resulted in deteriorated (p < 0.001) pulmonary functions accompanied by respiratory acidosis. AMIO showed an obvious histological injury score with intense collagen deposition, disturbed nitric oxide synthase enzymes (NOS/iNOS), and increased alpha smooth muscle actin expression. Furthermore, AMIO upregulated the transforming growth factor (TGF-β1)/phosphoinositide-3 kinase (PI3K)-Akt1-p/mammalian target of rapamycin (mTOR) axis, which determined the possible mechanism of AMIO on pulmonary remodelling. NI treatment significantly (p < 0.001) prevented the AMIO-induced lung toxicity, as well as inhibited the TGF-β1/PI3K/Akt1-p/mTOR axis in the lung tissue of rats. The results were confirmed by an in-vitro study. CONCLUSION: The current results revealed that NI was effective in preserving the lung structure and functions. Amelioration of the oxidative stress and modulation of TGF-β1/PI3K/Akt1-p/mTOR have been achieved. This study suggests NI administration as a preventive therapy from the serious pulmonary fibrosis side effect of AMIO.
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Affiliation(s)
- Inas Harb
- Department of Pharmacology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Hend Ashour
- Department of Physiology, Faculty of Medicine, KingKhalid University, Abha, Saudi Arabia.,Department of Physiology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Laila A Rashed
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Abeer Mostafa
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Mai Samir
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Basma Emad Aboulhoda
- Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Hala El-Hanbuli
- Department of Pathology, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Eman Rashwan
- Department of Physiology, Faculty of Medicine, Jouf University, Sakakah, Saudi Arabia.,Department of Physiology, Faculty of Medicine, Al-Azhar University, Assuit, Egypt
| | - Heba Mahmoud
- Department of Pharmacology, Faculty of Medicine, Cairo University, Giza, Egypt
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4
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Peng YW, Major T, Deatrick KB, Mohammed A, Jeakle M, Charpie JR. Nicorandil attenuates ventricular dysfunction and organ injury after cardiopulmonary bypass. Int J Cardiol 2022; 368:62-68. [PMID: 35987313 DOI: 10.1016/j.ijcard.2022.08.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 08/01/2022] [Accepted: 08/15/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Nicorandil, an adenosine triphosphate-sensitive potassium channel agonist and nitric oxide donor, is a coronary vasodilator used to treat ischemia-induced chest pain, but it's potential cardioprotective benefits during open heart surgery have not been thoroughly investigated. The study objective was to assess the impact of nicorandil on postoperative ventricular dysfunction and end-organ injury in an established experimental model of open-heart surgery with cardiopulmonary bypass (CPB) and cardioplegic arrest. We hypothesized that nicorandil would attenuate myocardial ischemia-reperfusion (IR) injury, preserve ventricular function, and reduce end-organ injury. METHODS Rabbits were cannulated for CPB, followed by 60 min of aortic cross-clamp (ACC) with cold cardioplegic arrest, and 120 min of recovery after ACC removal. Nicorandil (or normal saline vehicle) was given intravenously 5 min before ACC and continued throughout the recovery period. Left ventricular developed pressure (LVDP), systolic contractility (LV + dP/dt), and diastolic relaxation (LV -dP/dt) were continuously recorded, and blood and tissue samples were collected for measurement of oxidant stress (OS), inflammation, apoptosis, and organ injury. RESULTS Nicorandil significantly attenuated IR-induced LV dysfunction compared to saline control (R-120: LV + dP/dt: 1596 ± 397 vs. 514 ± 269 mmHg/s, p = 0.010; LV -dP/dt: -1524 ± 432 vs. -432 ± 243 mmHg/s, p < 0.001; LVDP: 55 ± 11 vs. 22 ± 5 mmHg, p = 0.046). Furthermore, nicorandil inhibited IR-induced increases in OS, inflammation, apoptosis, and organ injury. CONCLUSIONS Nicorandil exhibits myocardial protection by attenuation of IR-induced LV dysfunction associated with OS, inflammation, apoptosis, and organ injury. Nicorandil should be explored further as a potential therapeutic strategy for limiting global IR injury during open-heart surgery in humans.
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Affiliation(s)
- Yun-Wen Peng
- Division of Pediatric Cardiology, Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - Terry Major
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - Kristopher B Deatrick
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Azmath Mohammed
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Mark Jeakle
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - John R Charpie
- Division of Pediatric Cardiology, Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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5
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Lenz M, Kaun C, Krychtiuk KA, Haider P, Brekalo M, Maier N, Goederle L, Binder CJ, Huber K, Hengstenberg C, Wojta J, Hohensinner PJ, Speidl WS. Effects of Nicorandil on Inflammation, Apoptosis and Atherosclerotic Plaque Progression. Biomedicines 2021; 9:biomedicines9020120. [PMID: 33513743 PMCID: PMC7912627 DOI: 10.3390/biomedicines9020120] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/15/2021] [Accepted: 01/20/2021] [Indexed: 02/06/2023] Open
Abstract
Nicorandil, a balanced vasodilator, is used in the second-line therapy of angina pectoris. In this study, we aimed to illuminate the effects of nicorandil on inflammation, apoptosis, and atherosclerotic plaque progression. Twenty-five LDL-R -/- mice were fed a high-fat diet for 14 weeks. After 6 weeks mice were randomly allocated to treatment with nicorandil (10 mg/kg/day) or tap water. Nicorandil treatment led to a more stable plaque phenotype, displaying an increased thickness of the fibrous cap (p = 0.014), a significant reduction in cholesterol clefts (p = 0.045), and enhanced smooth muscle cell content (p = 0.009). In endothelial cells nicorandil did not reduce the induction of adhesion molecules or proinflammatory cytokines. In H2O2 challenged endothelial cells, pretreatment with nicorandil significantly reduced the percentage of late apoptotic/necrotic cells (p = 0.016) and the ratio of apoptotic to living cells (p = 0.036). Atherosclerotic lesions of animals treated with nicorandil exhibited a significantly decreased content of cleaved caspase-3 (p = 0.034), lower numbers of apoptotic nuclei (p = 0.040), and reduced 8-oxogunanine staining (p = 0.039), demonstrating a stabilizing effect of nicorandil in established atherosclerotic lesions. We suggest that nicorandil has a positive effect on atherosclerotic plaque stabilization by reducing apoptosis.
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Affiliation(s)
- Max Lenz
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
| | - Christoph Kaun
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
| | - Konstantin A. Krychtiuk
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
| | - Patrick Haider
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
| | - Mira Brekalo
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
| | - Nadine Maier
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
| | - Laura Goederle
- Department of Laboratory Medicine, Medical University of Vienna, 1090 Vienna, Austria; (L.G.); (C.J.B.)
- Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Christoph J. Binder
- Department of Laboratory Medicine, Medical University of Vienna, 1090 Vienna, Austria; (L.G.); (C.J.B.)
- Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Kurt Huber
- 3rd Medical Department for Cardiology and Emergency Medicine, Wilhelminenhospital and Sigmund Freud University, 1160 Vienna, Austria;
| | - Christian Hengstenberg
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
| | - Johann Wojta
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
- Core Facility Imaging, Medical University of Vienna, 1090 Vienna, Austria
| | - Philipp J. Hohensinner
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
- Correspondence: ; Tel.: +43-1-40400-73515
| | - Walter S. Speidl
- Department of Internal Medicine II—Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria; (M.L.); (C.K.); (K.A.K.); (P.H.); (M.B.); (N.M.); (C.H.); (J.W.); (W.S.S.)
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6
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Ashour H, Elsayed MH, Elmorsy S, Harb IA. Hypothesis: The potential therapeutic role of nicorandil in COVID-19. Clin Exp Pharmacol Physiol 2020; 47:1791-1797. [PMID: 32881062 PMCID: PMC7436472 DOI: 10.1111/1440-1681.13395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/14/2020] [Accepted: 08/02/2020] [Indexed: 12/16/2022]
Abstract
At present, there is yet no specific antiviral treatment or immunization against the newly identified human severe acute respiratory syndrome virus (SARS‐CoV2) that results in a rapidly progressive pandemic coronavirus disease 2019 (COVID‐19). We believe in a crucial need for a clinical strategy to counteract this viral pandemic based on the known pathogenesis throughout the disease course. Evidence suggests that exaggerated patient's inflammatory response and oxidative stress are likely to aggravate the disease pathology. The resulting endothelial dysfunction further induces fibrosis and coagulopathy. These disturbances can generate severe acute respiratory distress syndrome (ARDS) that can progress into respiratory and circulatory failure. Nicorandil is an anti‐anginal vasodilator drug acts by increasing nitric oxide bioavailability and opening of the KATP channel. Recently, nicorandil has been recognized to possess multiple protective effects against tissue injury. Here, we address a possible modulatory role of nicorandil against COVID‐19 pathogenesis. We hypothesise nicorandil would be an effective form of adjuvant therapy against COVID‐19.
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Affiliation(s)
- Hend Ashour
- Faculty of Medicine, Department of Physiology, King Khalid University, Abha, Saudi Arabia.,Faculty of Medicine, Department of Physiology, Kasr Alainy, Cairo University, Cairo, Egypt
| | - Mohamed H Elsayed
- Department of Pediatrics ICU, Al-Ahrar Teaching Hospital, Zagazig, Egypt.,Department of Pediatrics ICU, King Fahd Armed Forces Hospital, Khamis Mushait, Saudi Arabia
| | - Soha Elmorsy
- Faculty of Medicine, Department of Medical Pharmacology, Cairo University, Cairo, Egypt
| | - Inas A Harb
- Faculty of Medicine, Department of Medical Pharmacology, Cairo University, Cairo, Egypt
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7
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Abdelzaher WY, Khalaf HM, El-Hussieny M, Bayoumi A, Shehata S, Refaie M. Role of nitric oxide donor in methotrexate-induced testicular injury via modulation of pro-inflammatory mediators, eNOS and P-glycoprotein. Hum Exp Toxicol 2020; 39:1700-1709. [PMID: 32666843 DOI: 10.1177/0960327120940361] [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] [Indexed: 12/19/2022]
Abstract
Methotrexate (MTX) is a widely used chemotherapeutic agent but its clinical use is challenged with different forms of toxicities including testicular injury. The aim of the current study was to evaluate the potential protective effect of potassium channel opener, nicorandil (NIC) (3 and 10 mg/kg/day) on MTX-induced testicular injury in a rat model. Rats were randomly divided into four groups (nine rats each) and treated for 2 weeks as follows: (I) normal control (CON group) received vehicle, (II) model group (MTX group) given MTX (20 mg/kg) single intraperitoneal (i.p.) injection dose on 11th day, (III) MTX + NLD group treated with NIC (3 mg/kg/day) orally for 2 weeks and MTX (20 mg/kg) single i.p. dose on 11th day, and (IV) MTX + NHD group treated with NIC (10 mg/kg/day) orally for 2 weeks and MTX (20 mg/kg) single i.p. injection on the 11th day. The testicular injury was assessed biochemically via serum testosterone, total antioxidant capacity, testicular oxidative stress parameters, P-glycoprotein, tumor necrosis factor-alpha, and interleukin-1β. Furthermore, histopathological evaluation, endothelial nitric oxide synthase (eNOS) immunoexpression, and detection of p53 expression level using Western blotting were performed. Results showed that MTX induced testicular injury which was proved by both biochemical and histopathological evaluations. Our results concluded that NIC pretreatment attenuated MTX-induced testicular injury via significantly increased eNOS immunoexpression, antiapoptotic, anti-inflammatory, and antioxidant properties. Interestingly, NIC high dose is more protective than low dose.
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Affiliation(s)
- W Y Abdelzaher
- Department of Pharmacology, Faculty of Medicine, 68877Minia University, Minia, Egypt
| | - H M Khalaf
- Department of Pharmacology, Faculty of Medicine, 68877Minia University, Minia, Egypt
| | - M El-Hussieny
- Department of Pathology, Faculty of Medicine, 68877Minia University, Minia, Egypt
| | - Ama Bayoumi
- Department of Biochemistry, Faculty of Pharmacy, 68877Minia University, Minia, Egypt
| | - S Shehata
- Department of Cardiology, Faculty of Medicine, 68877Minia University, Minia, Egypt
| | - Mmm Refaie
- Department of Pharmacology, Faculty of Medicine, 68877Minia University, Minia, Egypt
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8
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Huang CY, Deng JS, Huang WC, Jiang WP, Huang GJ. Attenuation of Lipopolysaccharide-Induced Acute Lung Injury by Hispolon in Mice, Through Regulating the TLR4/PI3K/Akt/mTOR and Keap1/Nrf2/HO-1 Pathways, and Suppressing Oxidative Stress-Mediated ER Stress-Induced Apoptosis and Autophagy. Nutrients 2020; 12:E1742. [PMID: 32532087 PMCID: PMC7352175 DOI: 10.3390/nu12061742] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/27/2022] Open
Abstract
The anti-inflammatory effect of hispolon has identified it as one of the most important compounds from Sanghuangporus sanghuang. The research objectives were to study this compound using an animal model by lipopolysaccharide (LPS)-induced acute lung injury. Hispolon treatment reduced the production of the pro-inflammatory mediator NO, TNF-α, IL-1β, and IL-6 induced by LPS challenge in the lung tissues, as well as decreasing their histological alterations and protein content. Total cell number was also reduced in the bronchoalveolar lavage fluid (BALF). Moreover, hispolon inhibited iNOS, COX-2 and IκB-α and phosphorylated IKK and MAPK, while increasing catalase, SOD, GPx, TLR4, AKT, HO-1, Nrf-2, Keap1 and PPARγ expression, after LPS challenge. It also regulated apoptosis, ER stress and the autophagy signal transduction pathway. The results of this study show that hispolon regulates LPS-induced ER stress (increasing CHOP, PERK, IRE1, ATF6 and GRP78 protein expression), apoptosis (decreasing caspase-3 and Bax and increasing Bcl-2 expression) and autophagy (reducing LC3 I/II and Beclin-1 expression). This in vivo experimental study suggests that hispolon suppresses the LPS-induced activation of inflammatory pathways, oxidative injury, ER stress, apoptosis and autophagy and has the potential to be used therapeutically in major anterior segment lung diseases.
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Affiliation(s)
- Ching-Ying Huang
- Graduate Institute of Aging Medicine, School of Medicine, China Medical University, Taichung 404, Taiwan;
| | - Jeng-Shyan Deng
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan;
| | - Wen-Chin Huang
- Graduate Institute of Biomedical Sciences, School of Medicine, China Medical University, Taichung 404, Taiwan;
| | - Wen-Ping Jiang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
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9
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Xu X, Liu X, Yu L, Ma J, Yu S, Ni M. Impact of intracoronary nicorandil before stent deployment in patients with acute coronary syndrome undergoing percutaneous coronary intervention. Exp Ther Med 2019; 19:137-146. [PMID: 31853283 PMCID: PMC6909796 DOI: 10.3892/etm.2019.8219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 11/07/2019] [Indexed: 12/29/2022] Open
Abstract
The present study aimed to clarify the effect of bolus intracoronary nicorandil on inflammatory, oxidative and adherent indicators in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). This randomized controlled trial (RCT) was performed to detect the inflammation and oxidative stress in intracoronary blood both before and after PCI. In total, 65 consecutive patients undergoing PCI were classified into a nicorandil therapy group (n=32) or a placebo group (n=33). All procedures were performed at Shandong University Qilu Hospital, China, during the period from March, 2016 to May, 2017. Intracoronary blood from patients who received nicorandil therapy during PCI showed no change in soluble CD40 ligand (sCD40L) concentration (1.86±0.08 vs. 1.90±0.09 ng/ml, P=0.12) but a significant increase was noted in the control group (1.87±0.17 vs. 2.82±0.26 ng/ml, P<0.01). This indicated a relative reduction in sCD40L level after PCI in the nicorandil group. We further demonstrated an increase in superoxide dismutase (SOD) activity (29.37±0.81 vs. 31.03±0.60 U/ml, P<0.001) and a reduction in lipid peroxidation (3.84±0.99 vs. 4.23±0.13 U/ml, P=0.001) in the nicorandil group but observed no change in the placebo group. ICAM-1 levels showed no change in the nicorandil group (69.54±6.89 vs. 72.01±8.25 ng/ml, P=0.83) but a significant increase in the control group after PCI in intracoronary blood (56.57±4.96 vs. 76.81±6.88 ng/ml, P=0.002). No changes were found in hs-CRP, TNFα and sVCAM-1 levels in coronary blood for both groups before and after PCI in ACS patients. Our findings demonstrate that intracoronary bolus nicorandil therapy has a significant effect on the inhibition of inflammatory indicators and oxidative stress in patients with ACS during PCI. This suggests a possible medical application of nicorandil for reducing inflammation and oxidative stress.
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Affiliation(s)
- Xingli Xu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xiaoling Liu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Liwen Yu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jing Ma
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Sufang Yu
- Department of Neurology, The Fourth People's Hospital, Liaocheng, Shandong 252002, P.R. China
| | - Mei Ni
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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10
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Chen CC, Hong HJ, Hao WR, Cheng TH, Liu JC, Sung LC. Nicorandil prevents doxorubicin-induced human umbilical vein endothelial cell apoptosis. Eur J Pharmacol 2019; 859:172542. [PMID: 31319070 DOI: 10.1016/j.ejphar.2019.172542] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/06/2019] [Accepted: 07/15/2019] [Indexed: 01/27/2023]
Abstract
Nicorandil is an adenosine triphosphate-sensitive potassium channel opener with additional antioxidant properties. Doxorubicin (DOX) is an anticancer drug that exerts oxidation-mediated adverse cardiovascular effects. This study examined the effects of nicorandil on DOX-induced cytotoxicity in human umbilical vein endothelial cells (HUVECs) and underlying intracellular signaling mechanisms. Cultured HUVECs were pretreated with nicorandil (0.1, 0.3, 1, 3, and 10 μM) for 12 h and then treated with DOX (1 μM) for 24 h. Cell viability and cytotoxicity were measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays, respectively. Cell apoptosis was examined using a caspase-3 activity assay, and DNA fragmentation was detected through TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling) staining. Western blot analysis was conducted to determine the related protein expression. DOX markedly increased reactive oxygen species production, p53 expression, caspase-3 activity, cleaved caspase-3 levels, and TUNEL-positive cell numbers but reduced Bcl-2 expression and intracellular antioxidant enzyme levels; these effects were effectively antagonized through nicorandil (3 μM, 12 h) pretreatment, which resulted in HUVECs being protected from DOX-induced apoptosis. Activating transcription factor 3 (ATF3), a stress-induced transcription factor, was induced by nicorandil (3 μM). Furthermore, nicorandil (3 μM) enhanced nuclear factor erythroid 2-related factor 2 (Nrf2) translocation and heme oxygenase-1 (HO-1) expression. ATF3 short interfering RNA significantly attenuated nicorandil-mediated Nrf2 translocation, HO-1 expression, and inhibitory effects on DOX-stimulated reactive oxygen species production and cell apoptosis. In summary, nicorandil may protect HUVECs from DOX-induced apoptosis, in part through ATF3-mediated Nrf2/HO-1 signaling pathways, which potentially protect the vessels from severe DOX toxicity.
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Affiliation(s)
- Chun-Chao Chen
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Hong-Jye Hong
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Wen-Rui Hao
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Tzu-Hurng Cheng
- Department of Biochemistry, School of Medicine, College of Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Ju-Chi Liu
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan; Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Li-Chin Sung
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan; Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
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11
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Wang C, Ke H, Xu X, Chen J, Sun D, Ji F. Protective effect of nicorandil on collapse‑induced lung injury in rabbits by inhibiting apoptosis. Int J Mol Med 2019; 44:725-736. [PMID: 31173181 DOI: 10.3892/ijmm.2019.4236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Accepted: 05/24/2019] [Indexed: 11/06/2022] Open
Abstract
The one‑lung ventilation (OLV) technique is vital in thoracic surgery. However, it can result in severe lung injury, which is difficult to manage. The main solution at present is the use of ventilation strategies, including continuous positive oxygen pressure, low tidal volume and high frequency ventilation, and the administering of drugs, including phenylephrine, dexmedetomidine and morphine. However, the protective effect of these methods on the lungs is not sufficient to improve the prognosis of patients. Therefore, how to develop a novel protective drug remains an open question. Nicorandil, a mitochondrial (mito)KATP‑specific opener, serves an important role in cardioprotection, although its effect on lung injury remains unclear. The present study examined the protective role of nicorandil against collapse‑induced lung injury in rabbits undergoing OLV. Changes in arterial oxygen saturation (SaO2), arterial partial pressure for oxygen (PaO2), wet/dry weight ratio, and the microstructure of tissues and cells were observed. Enzyme‑linked immunosorbent assays were used to determine the concentrations of malondialdehyde (MDA) and tumor necrosis factor (TNF)‑α, and the activity of superoxide dismutase (SOD) in rabbits treated with nicorandil. Terminal deoxynucleotidyl transferase transfer‑mediated dUTP nick end‑labeling was used to detect apoptosis and western blotting was used to analyze the relative proteins involved in apoptosis. Western blotting and reverse transcription‑quantitative polymerase chain reaction analysis were used to examine the expression of hypoxia inducible factor 1α (HIF‑1α), phosphatidylinositol‑3‑kinase (PI3K), protein kinase B (Akt) and nuclear factor (NF)‑κB in the lungs of rabbits treated with nicorandil. The SaO2 and PaO2 in the high‑dose group were significantly higher than those in the control group in the process of OLV. The wet/dry weight ratio, and the concentrations of MDA and TNF‑α in the collapsed lung of the high‑dose group were significantly lower than those in the control group. The activity of SOD in the high‑dose group was significantly higher than that in the control group. The lung had improved microstructure and less apoptosis, which was determined by the Bax/Bcl2 ratio in the high‑dose group. The expression levels of PI3K, phosphorylated Akt and HIF‑1α were upregulated, whereas the expression of NF‑κB was downregulated. In conclusion, nicorandil had a protective effect via inhibiting apoptosis in non‑ventilated lung collapsed and re‑expansion during OLV in the rabbit. It acted on mitoKATP through the PI3K/Akt signaling pathway.
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Affiliation(s)
- Chunguang Wang
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Honggang Ke
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xingguo Xu
- Department of Anesthesiology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Junjie Chen
- Department of Anesthesiology, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Dongyun Sun
- Department of Ophthalmic Operating Room, The Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Fuhai Ji
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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12
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Nicorandil Attenuates LPS-Induced Acute Lung Injury by Pulmonary Endothelial Cell Protection via NF- κB and MAPK Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4957646. [PMID: 30984337 PMCID: PMC6431468 DOI: 10.1155/2019/4957646] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/04/2018] [Accepted: 11/28/2018] [Indexed: 01/06/2023]
Abstract
Acute lung injury (ALI) is a devastating critical disease characterized by diffuse inflammation and endothelial dysfunction. Increasing evidence, including from our laboratory, has revealed that the opening of ATP-sensitive potassium (KATP) channels has promising anti-inflammation and endothelial protection activities in various disorders. However, the impacts of KATP channels on ALI remain obscure. In this study, we used nicorandil (Nico), a classic KATP channel opener, to investigate whether opening of KATP channels could alleviate ALI with an emphasis on human pulmonary artery endothelial cell (HPAEC) modulation. The results showed that Nico inhibited lipopolysaccharide- (LPS-) induced inflammatory response, protein accumulation, myeloperoxidase activity, and endothelial injury. In vitro, Nico reduced LPS-induced HPAEC apoptosis and the expression of cleaved-caspase-3, caspase-9, and CCAAT/enhancer-binding protein homologous protein (CHOP). Additionally, Nico inhibited inflammation by suppressing monocyte-endothelial adhesion and decreasing the expression of proinflammatory proteins. Moreover, Nico restored the expression and the distribution of adherens junction vascular endothelial- (VE-) cadherin. Further, Nico abolished the increase in intracellular reactive oxygen species (ROS) and the activation of NF-κB and mitogen-activated protein kinase (MAPK) in HPAECs. Glibenclamide (Gli), a nonselective KATP channel blocker, abrogated the effects of Nico, implying that opening of KATP channels contributes to the relief of ALI. Together, our findings indicated that Nico alleviated LPS-induced ALI by protecting ECs function via preventing apoptosis, suppressing endothelial inflammation and reducing oxidative stress, which may be attributed to the inhibition of NF-κB and MAPK signaling pathways.
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13
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Luo R, Chen X, Ma H, Yao C, Liu M, Tao J, Li X. Myocardial caspase-3 and NF-κB activation promotes calpain-induced septic apoptosis: The role of Akt/eNOS/NO pathway. Life Sci 2019; 222:195-202. [PMID: 30807754 DOI: 10.1016/j.lfs.2019.02.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/18/2019] [Accepted: 02/23/2019] [Indexed: 10/27/2022]
Abstract
AIMS To explore the potential mechanism that the role of the Akt/eNOS/NO pathway in calpain-induced caspase-3 and NF-κB activation during septic apoptosis. MAIN METHODS Septic rats were stimulated by LPS (8 mg/kg, i.p.). Myocardial calpain, caspase-3, NO, TNF-α and IL-1β levels were detected by ELISA. The levels of Akt/p-Akt, eNOS/p-eNOS, iNOS proteins and number of apoptotic cells were evaluated by immunohistochemistry, western blot and TUNEL method. KEY FINDINGS Compared with sham, LPS treatment resulted in 4.1-fold and 1.8-fold increases in myocardial calpain activity and caspase-3 activation, respectively, and a significant increase (6.8-fold) in apoptotic cardiomyocytes was observed. The administration of calpain inhibitors (calpain inhibitor-IV, PD150606 and PD151746) showed that p-Akt and p-eNOS protein levels were correlated with the levels of LPS-induced myocardial calpain and caspase-3 activity. In addition, the quantity of p-Akt protein and NO content were markedly attenuated by wortmannin, a phosphoinositide 3-kinase (PI3K) inhibitor. Pretreatment with L-NAME, an NOS inhibitor, induced a decrease in p-eNOS proteins and apoptosis in myocardial tissues, while iNOS proteins were strongly increased in septic rats. SIGNIFICANCE This study suggests that the Akt/eNOS/NO pathway might lead to a novel pharmacological therapy for cardiomyocytes apoptosis in sepsis.
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Affiliation(s)
- Rong Luo
- Temperature and Inflammation Research Center, Key Laboratory of Colleges and Universities in Sichuan Province, Chengdu Medical College, 610500, China
| | - Xuepin Chen
- Zunyi Medical University, Zunyi, Guizhou 563000, China; Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Huihui Ma
- Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Chao Yao
- Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Mingjiang Liu
- Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Jianhong Tao
- Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Xiaoping Li
- Zunyi Medical University, Zunyi, Guizhou 563000, China; Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610072, China.
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14
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Chen A, Liu J, Zhu J, Wang X, Xu Z, Cui Z, Yao D, Huang Z, Xu M, Chen M, Wu P, Li M, Wang L, Huang X. FGF21 attenuates hypoxia‑induced dysfunction and apoptosis in HPAECs through alleviating endoplasmic reticulum stress. Int J Mol Med 2018; 42:1684-1694. [PMID: 29845288 DOI: 10.3892/ijmm.2018.3705] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 05/18/2018] [Indexed: 11/05/2022] Open
Abstract
Vascular endothelial apoptosis and dysfunction have a crucial role in triggering pathological vascular remodeling of hypoxia‑induced pulmonary arterial hypertension (PAH). Fibroblast growth factor (FGF)21, an endocrine regulator, has recently been reported to protect cardiac endothelial cells from damage and suppress inflammatory responses. In addition, FGF21 is reported to be involved in endoplasmic reticulum stress (ERS). Previous studies have suggested that ERS participates in the development of PAH, and attenuation of ERS could be an effective therapeutic strategy for the protection of pulmonary arteries. However, whether FGF21 has a protective function via suppression of ERS in pulmonary arterial endothelial cells in hypoxia remains unclear. The present study aimed to explore whether FGF21 could reduce the hypoxia‑induced apoptosis of human pulmonary arterial endothelial cells (HPAECs) and prevent endothelial dysfunction via the inhibition of ERS. HPAECs were divided into six groups: Normoxia, hypoxia, hypoxia plus FGF21, hypoxia plus salubrinal (an ERS inhibitor), hypoxia plus tunicamycin (an ERS agonist), and hypoxia plus tunicamycin plus FGF21. The endoplasmic reticulum ultrastructure in HPAECs was assessed by transmission electron microscopy, and proliferation and apoptosis were examined by cell counting kit‑8 and terminal deoxyribonucleotide transferase‑mediated dUTP nick end‑labelling assays, respectively. The expression levels of ERS‑related proteins, including binding immunoglobulin protein (BiP), protein kinase R‑like endoplasmic reticulum kinase (PERK), phosphorylated (p‑) PERK, transcription factor C/EBP homologous protein (CHOP), B‑cell lymphoma-2 (Bcl‑2) and caspase‑4 were detected by western blotting. Transwell migration chamber assays were performed, and the concentration of nitric oxide (NO)/endothelin‑1 (ET‑1) in the culture medium was determined to examine endothelial function. The results revealed that hypoxia increased the % of apoptotic cells and diminished the viability of HPAECs, accompanied by an upregulation of ERS‑dependent apoptosis by increasing the expression of the proapoptotic caspase‑4 and decreasing the antiapoptotic Bcl‑2. Additionally, hypoxia upregulated the expression of representative proteins in the PERK branch of ERS, including BiP, p‑PERK and CHOP, while it downregulated the expression of PERK. Furthermore, the secretion of NO/ET‑1 and the migration rate of HPAECs were downregulated under conditions of hypoxia. FGF21 significantly attenuated the hypoxia‑induced apoptosis and dysfunction of HPAECs through alleviating the aforementioned changes in ERS‑dependent signaling pathways. In conclusion, ERS may be a crucial mechanism in the hypoxia‑induced apoptosis and endothelial dysfunction of HPAECs. FGF21 may attenuate the hypoxia‑induced apoptosis and dysfunction of HPAECs through alleviating ERS, via the PERK/CHOP signaling pathway and inhibition of caspase‑4 expression.
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Affiliation(s)
- Ali Chen
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Jingjing Liu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Jianfeng Zhu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Xuetao Wang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhaona Xu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhimin Cui
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Dan Yao
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhifeng Huang
- Key Laboratory of Biotechnology and Pharmaceutical Engineering of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Min Xu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Mayun Chen
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Peiliang Wu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Manxiang Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi 710061, P.R. China
| | - Liangxing Wang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaoying Huang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang 325000, P.R. China
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Li S, Takahara T, Fujino M, Fukuhara Y, Sugiyama T, Li XK, Takahara S. Astaxanthin prevents ischemia-reperfusion injury of the steatotic liver in mice. PLoS One 2017; 12:e0187810. [PMID: 29121675 PMCID: PMC5679630 DOI: 10.1371/journal.pone.0187810] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/26/2017] [Indexed: 12/21/2022] Open
Abstract
Steatosis has a low tolerance against ischemia-reperfusion injury (IRI). To prevent IRI in the steatotic liver, we attempted to elucidate the protective effect of astaxanthin (ASTX) in the steatotic liver model by giving mice a methionine and choline-deficient high fat (MCDHF) diet. Levels of lipid peroxidation and apoptosis, the expression of inflammatory cytokines and heme oxygenase (HO)-1, in the liver were assessed. Reactive oxygen species (ROS), inflammatory cytokines, apoptosis-related proteins and members of the signaling pathway were also examined in isolated Kupffer cells and/or hepatocytes from the steatotic liver. ASTX decreased serum ALT and AST levels, the amount of TUNEL, F4/80, or 4HNE-positive cells and the mRNA levels of inflammatory cytokines in MCDHF mice by IRI. Moreover, HO-1 and HIF-1α, phosphorylation of Akt and mTOR expressions were increased by ASTX. The inflammatory cytokines produced by Kupffer, which were subjected to hypoxia and reoxygenation (HR), were inhibited by ASTX. Expressions of Bcl-2, HO-1 and Nrf2 in hepatocytes by HR were increased, whereas Caspases activation, Bax and phosphorylation of ERK, MAPK, and JNK were suppressed by ASTX. Pretreatment with ASTX has a protective effect and is a safe therapeutic treatment for IRI, including for liver transplantation of the steatotic liver.
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Affiliation(s)
- Shaowei Li
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
- Department of Advanced Technology for Transplantation, Osaka University Graduate School of Medicine, Osaka, Japan
- Research Center of Molecular Biology, School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
- Clinical Medicine Research Center of Affiliated Hospital, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Terumi Takahara
- Third Department of Internal Medicine, University of Toyama, Toyama, Japan
| | - Masayuki Fujino
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
- AIDS Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yasuyuki Fukuhara
- Division of Medical Genetics, National Center for Child Health and Development, Tokyo, Japan
| | - Toshiro Sugiyama
- Third Department of Internal Medicine, University of Toyama, Toyama, Japan
| | - Xiao-Kang Li
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Shiro Takahara
- Department of Advanced Technology for Transplantation, Osaka University Graduate School of Medicine, Osaka, Japan
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16
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Wu Y, He MY, Ye JK, Ma SY, Huang W, Wei YY, Kong H, Wang H, Zeng XN, Xie WP. Activation of ATP-sensitive potassium channels facilitates the function of human endothelial colony-forming cells via Ca 2+ /Akt/eNOS pathway. J Cell Mol Med 2016; 21:609-620. [PMID: 27709781 PMCID: PMC5323860 DOI: 10.1111/jcmm.13006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/05/2016] [Indexed: 12/17/2022] Open
Abstract
Accumulating data, including those from our laboratory, have shown that the opening of ATP‐sensitive potassium channels (KATP) plays a protective role in pulmonary vascular diseases (PVD). As maintainers of the endothelial framework, endothelial colony‐forming cells (ECFCs) are considered excellent candidates for vascular regeneration in cases of PVD. Although KATP openers (KCOs) have been demonstrated to have beneficial effects on endothelial cells, the impact of KATP on ECFC function remains unclear. Herein, this study investigated whether there is a distribution of KATP in ECFCs and what role KATP play in ECFC modulation. By human ECFCs isolated from adult peripheral blood, KATP were confirmed for the first time to express in ECFCs, comprised subunits of Kir (Kir6.1, Kir6.2) and SUR2b. KCOs such as the classical agent nicorandil (Nico) and the novel agent iptakalim (Ipt) notably improved the function of ECFCs, promoting cell proliferation, migration and angiogenesis, which were abolished by a non‐selective KATP blocker glibenclamide (Gli). To determine the underlying mechanisms, we investigated the impacts of KCOs on CaMKII, Akt and endothelial nitric oxide synthase pathways. Enhanced levels were detected by western blotting, which were abrogated by Gli. This suggested an involvement of Ca2+ signalling in the regulation of ECFCs by KATP. Our findings demonstrated for the first time that there is a distribution of KATP in ECFCs and KATP play a vital role in ECFC function. The present work highlighted a novel profile of KATP as a potential target for ECFC modulation, which may hold the key to the treatment of PVD.
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Affiliation(s)
- Yan Wu
- Department of Respiratory Medicine, WuXi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Meng-Yu He
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jian-Kui Ye
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shu-Ying Ma
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wen Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yong-Yue Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hui Kong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hong Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiao-Ning Zeng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei-Ping Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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17
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Li W, Wu N, Shu W, Jia D, Jia P. Pharmacological preconditioning and postconditioning with nicorandil attenuates ischemia/reperfusion-induced myocardial necrosis and apoptosis in hypercholesterolemic rats. Exp Ther Med 2015; 10:2197-2205. [PMID: 26668616 DOI: 10.3892/etm.2015.2782] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 09/01/2015] [Indexed: 12/13/2022] Open
Abstract
Pharmacological preconditioning and postconditioning may reduce myocardial necrosis and apoptosis during ischemia/reperfusion (I/R), however, hypercholesterolemia interferes with the associated cardioprotective mechanisms. The present study investigated whether pharmacological preconditioning and postconditioning with nicorandil could attenuate myocardial necrosis and apoptosis induced by I/R in hypercholesterolemic rats, and explored the possible mechanisms involved. Male Wistar rats (n=160) were fed normal (normocholesterolemic group, n=10) or high-cholesterol (hypercholesterolemic group, n=150) diets for 8 weeks. Hearts harvested from the normal and hypercholesterolemic rats were subsequently placed on modified Langendorff perfusion apparatus and 30-min global ischemia was performed, followed by 120-min reperfusion. Nicorandil (1, 3, 10, 30, 100 µmol/l), and mitochondrial adenosine triphosphate-sensitive potassium (mitoKATP) channel blocker 5-hydroxydecanoic acid sodium salt (5-HD) (100 µmol/l) or soluble guanylyl cyclase (sGC) blocker 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) (10 µmol/l) were perfused for 10 min, prior to ischemia or at the onset of reperfusion. The myocardial infarct size was determined by triphenyltetrazolium chloride staining, and cardiomyocyte apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick-end labeling staining. In order to investigate the potential mechanisms, the expression levels of caspase-3, B-cell lymphoma-2 (Bcl-2) proteins and Bcl-2-associated X protein (Bax) were measured using western blot analysis. The present study demonstrated that, in hypercholesterolemic rats, pharmacological preconditioning and postconditioning with nicorandil decreased I/R-induced myocardial necrosis and apoptosis in a concentration-dependent manner. The optimal preconditioning and postconditioning concentration of nicorandil determined to have anti-infarct and anti-apoptosis effects was 30 µmol/l, which significantly (P<0.05) reduced the infarct size to 14.88±3.25% and 15.96±3.29%, and attenuated the percentage of cardiomyocyte apoptosis to 25.20±3.93% and 26.18±4.82%, respectively, compared with the I/R group. However, the cardioprotective effects of nicorandil were partially suppressed by cotreatment with 5-HD or ODQ. Western blot analysis demonstrated that pharmacological preconditioning and postconditioning with nicorandil significantly downregulated caspase-3 and Bax expression, and upregulated Bcl-2 expression compared with the I/R group (P<0.05). The results of the present study suggest that pharmacological preconditioning and postconditioning with nicorandil may protect hypercholesterolemic hearts against I/R-induced necrosis and apoptosis; and the cardioprotective effects of nicorandil may be due to the dual pharmacological mechanisms of opening the mitoKATP channels and a nitric oxide/sGC-dependent mechanism, and regulation of the expression of caspase-3, Bax and Bcl-2.
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Affiliation(s)
- Wenna Li
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Nan Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wenqi Shu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Dalin Jia
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Pengyu Jia
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Li JW, He SY, Feng ZZ, Zhao L, Jia WK, Liu P, Zhu Y, Jian Z, Xiao YB. MicroRNA-146b inhibition augments hypoxia-induced cardiomyocyte apoptosis. Mol Med Rep 2015; 12:6903-10. [PMID: 26397753 DOI: 10.3892/mmr.2015.4333] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Accepted: 08/24/2015] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRs) regulate a number of physiological and pathological processes, including myocardial chronic hypoxia. Previous studies revealed that the expression of miR-146b is increased in vitro and in vivo following the induction of hypoxia. In the present study, the role of miR‑146b in hypoxic cardiomyocytes, and the mechanisms underlying its activity, were investigated. The expression of miR‑146b was measured in tissue samples from patients with congenital heart disease by reverse transcription‑quantitative polymerase chain reaction. The rat H9c2 cardiomyocyte cell line was transfected with an miR‑146b inhibitor or the experimental controls, and the cells were maintained under hypoxic conditions for 72 h. The expression of miR‑146b increased following the induction of hypoxia. Transfection with the miR‑146b inhibitor enhanced the release of lactate dehydrogenase and increased hypoxia‑induced apoptosis, as determined by terminal deoxynucleotidyl transferase dUTP nick‑end labeling, Hoechst 33258 staining, JC‑1 assay (measuring mitochondrial membrane permeability) and annexin V/propidium iodide analysis. A decreased expression of Bcl‑2 was observed, whereas the expression levels of cleaved‑caspase 3 and Bax were increased. Western blot analysis and a dual luciferase reporter assay confirmed that ribonuclease L is a direct target of miR‑146b. Furthermore, inhibition of miR-146b increased the activation of nuclear factor-κB and signal transducer and activator of transcription 3. In conclusion, the inhibition of miR‑146b may increase hypoxia-induced cardiomyocyte apoptosis.
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Affiliation(s)
- Jing-Wei Li
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Si-Yi He
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Ze-Zhou Feng
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Liang Zhao
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Wei-Kun Jia
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Peng Liu
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Yun Zhu
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Zhao Jian
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Ying-Bin Xiao
- Department of Cardiovascular Surgery, PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
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Wang X, Dai Y, Ding Z, Khaidakov M, Mercanti F, Mehta JL. Regulation of autophagy and apoptosis in response to angiotensin II in HL-1 cardiomyocytes. Biochem Biophys Res Commun 2013; 440:696-700. [PMID: 24099770 DOI: 10.1016/j.bbrc.2013.09.131] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 09/28/2013] [Indexed: 01/10/2023]
Abstract
BACKGROUND Autophagy and apoptosis are two important regulators of cell survival, and are often observed simultaneously in response to noxious stimuli. Anoxia is a known stimulus for autophagy and apoptosis, and angiotensin (Ang) II is a major mediator of anoxic injury. However, specific responses to anoxia and Ang II in terms of occurrence of autophagy and apoptosis have still not been delineated. METHODS AND RESULTS We observed that autophagy (measured as LC3 staining, and Beclin-1 and p62 Western blotting) was an early response and apoptosis (measured as TUNEL staining, and Annexin V and Smac/Diablo Western blotting) became dominant as the duration of anoxia was prolonged. Autophagy also occurred quickly in response to low concentrations of Ang II. When exposed to high concentrations of Ang II, a significant number of cells developed apoptosis, while autophagy response decreased. Ang II-mediated apoptosis was blocked by Ang II type 1 receptor (AT1R) blocker losartan as well as by the AT2R blocker PD123319. Ang II-induced autophagy was blocked by losartan, but not by PD123319. CONCLUSION Exposure to Ang II, a mediator of anoxic injury, initiates a rapid autophagy response, perhaps in an attempt to protect tissues from the impending noxious effects. However, when anoxia (and thereby release of Ang II) is prolonged, the process of apoptosis dominates. These processes will determine the outcome of cardiomyocyte well-being in states of hypoxia.
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Affiliation(s)
- Xianwei Wang
- Department of Cell Biology, College of Life Science and Technology, Xinxiang Medical University, Xinxiang, Henan, China; Division of Cardiology, University of Arkansas for Medical Sciences and the Central Arkansas Veterans Healthcare System, Little Rock, AR, USA.
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