1
|
Liu X, Liu Y, Su X, Jiang L, Tang G, Wang Y. Geranylgeranylacetone mitigates sepsis-associated intestinal injury through CHIP-dependent anti-inflammation and anti-oxidative effect. Int Immunopharmacol 2024; 135:112263. [PMID: 38788444 DOI: 10.1016/j.intimp.2024.112263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024]
Abstract
Geranylgeranylacetone (GGA), an isoprenoid compound widely utilized as an antiulcer agent in Asia, confers protection against ischemia, anoxia, and oxidative stress by rapidly enhancing the expression of HSP70. Nevertheless, the impact of GGA on sepsis-associated intestinal injury remains unexplored. Thus, this study is crafted to elucidate the protective efficacy and underlying mechanisms of GGA against septic intestinal damage. Our findings revealed that GGA significantly extended the survival duration of septic mice, and mitigated lipopolysaccharide (LPS)-induced alterations in intestinal permeability and tissue damage. Furthermore, GGA effectively suppressed LPS-induced cytokine release, attenuated levels of reactive oxygen species (ROS) and malondialdehyde, and bolstered antioxidant-related parameters within the intestinal tissue of LPS-stimulated mice. Mechanistically, GGA significantly increased HSP70 expression and promoted E3 ubiquitin ligase CHIP to play the role in ubiquitination and degradation of karyopherin-α2 (KPNA2), resulting in inhibition of nuclear translocation of NF-κB and reduced NOX1, NOX2 and NOX4 expression. The inhibitory action of GGA on cytokine release and ROS generation was abolished by CHIP knockdown in IEC-6 cells treated with LPS. Simultaneously, the downregulation of CHIP reversed the suppressive role of GGA in the LPS-induced NF-κB activation and the expression of NOX1, NOX2 and NOX4 in IEC-6 cells. The effects of GGA on mitigating intestinal damage, inflammation and oxidative stress caused by LPS were eliminated in CHIP knockout mice. Our results demonstrate that the protective effect of GGA against LPS-caused intestinal injury of mice is dependent on CHIP activation, which promotes KPNA2 degradation and restrains translocation of NF-κB into nucleus, leading to suppressing LPS-induced inflammatory response and oxidative stress.
Collapse
Affiliation(s)
- Xin Liu
- Department of Gastroenterology, Huaihe Hospital of Henan University, Kaifeng 475000, China.
| | - Yingwen Liu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Xingyu Su
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Lucen Jiang
- Department of Pathology, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Guoqing Tang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Yiyang Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
2
|
Protection of zero-valent iron nanoparticles against sepsis and septic heart failure. J Nanobiotechnology 2022; 20:405. [PMID: 36064371 PMCID: PMC9444118 DOI: 10.1186/s12951-022-01589-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 08/08/2022] [Indexed: 11/23/2022] Open
Abstract
Background Septic heart failure accounts for high mortality rates globally. With a strong reducing capacity, zero-valent iron nanoparticles (nanoFe) have been applied in many fields. However, the precise roles and mechanisms of nanoFe in septic cardiomyopathy remain unknown. Results NanoFe was prepared via the liquid-phase reduction method and functionalized with the biocompatible polymer sodium carboxymethylcellulose (CMC). We then successfully constructed a mouse model of septic myocardial injury by challenging with cecal ligation and puncture (CLP). Our findings demonstrated that nanoFe has a significant protective effect on CLP-induced septic myocardial injury. This may be achieved by attenuating inflammation and oxidative stress, improving mitochondrial function, regulating endoplasmic reticulum stress, and activating the AMPK pathway. The RNA-seq results supported the role of nanoFe treatment in regulating a transcriptional profile consistent with its role in response to sepsis. Conclusions The results provide a theoretical basis for the application strategy and combination of nanoFe in sepsis and septic myocardial injury. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01589-1.
Collapse
|
3
|
Priksz D, Lampe N, Kovacs A, Herwig M, Bombicz M, Varga B, Wilisicz T, Szilvassy J, Posa A, Kiss R, Gesztelyi R, Raduly A, Szekeres R, Sieme M, Papp Z, Toth A, Hamdani N, Szilvassy Z, Juhasz B. Nicotinic-acid derivative BGP-15 improves diastolic function in a rabbit model of atherosclerotic cardiomyopathy. Br J Pharmacol 2021; 179:2240-2258. [PMID: 34811751 DOI: 10.1111/bph.15749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 10/25/2021] [Accepted: 11/05/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Small molecule BGP-15 has been reported to alleviate signs of heart failure and improve muscle function in murine models. Here, we investigated the acute and chronic effects of BGP-15 in a rabbit model of atherosclerotic cardiomyopathy. EXPERIMENTAL APPROACH Rabbits were maintained on standard chow (Control) or atherogenic diet (HC) for 16 weeks. BGP-15 was administered intravenously (once) or orally (for 16 weeks), to assess acute and chronic effects. Cardiac function was evaluated by echocardiography, endothelium-dependent vasorelaxation was assessed, and key molecules of the protein kinase G (PKG) axis were examined by ELISA and Western blot. Passive force generation was investigated in skinned cardiomyocytes. KEY RESULTS Both acute and chronic BGP-15 treatment improved the diastolic performance of the diseased heart, however, vasorelaxation and serum lipid markers were unaffected. Myocardial cGMP levels were elevated in the BGP-15-treated group, along with preserved PKG activity and increased phospholamban Ser16-phosphorylation. PDE5 expression decreased in the BGP-15-treated group, and the substance inhibited PDE1 enzyme. Cardiomyocyte passive tension reduced in BGP-15-treated rabbits, the ratio of titin N2BA/N2B isoforms increased, and PKG-dependent N2B-titin phosphorylation elevated in the BGP-15-treated group. CONCLUSIONS AND IMPLICATIONS Here we report that BGP-15-treatment improves diastolic function, reduces cardiomyocyte stiffness, and restores titin compliance in a rabbit model of atherosclerotic cardiomyopathy by increasing the activity of the cGMP-PKG axis. As BGP-15 is proven to be safe, it may have clinical value in the treatment of diastolic dysfunction.
Collapse
Affiliation(s)
- Daniel Priksz
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Nora Lampe
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Arpad Kovacs
- Department of Molecular and Experimental Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Department of Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Institute of Physiology Ruhr University Bochum, Bochum, Germany
| | - Melissa Herwig
- Department of Molecular and Experimental Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Department of Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Institute of Physiology Ruhr University Bochum, Bochum, Germany
| | - Mariann Bombicz
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Balazs Varga
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Tician Wilisicz
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Judit Szilvassy
- Department of Otorhinolaryngology and Head-Neck Surgery, University of Debrecen, Debrecen, Hungary
| | - Aniko Posa
- Department of Physiology, Anatomy and Neuroscience, Interdisciplinary Excellence Centre, University of Szeged, Szeged, Hungary
| | - Rita Kiss
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Rudolf Gesztelyi
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Arnold Raduly
- Division of Clinical Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Reka Szekeres
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Marcel Sieme
- Department of Molecular and Experimental Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Department of Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Institute of Physiology Ruhr University Bochum, Bochum, Germany
| | - Zoltan Papp
- Division of Clinical Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Toth
- Division of Clinical Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Nazha Hamdani
- Department of Molecular and Experimental Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Department of Cardiology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany.,Institute of Physiology Ruhr University Bochum, Bochum, Germany.,Department of Clinical Pharmacology, Ruhr University Bochum, Bochum, Germany
| | - Zoltan Szilvassy
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| | - Bela Juhasz
- Department of Pharmacology and Pharmacotherapy, Faculty of General Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
4
|
Cardiac and Metabolic Impact of Functional Foods with Antioxidant Properties Based on Whey Derived Proteins Enriched with Hemp Seed Oil. Antioxidants (Basel) 2020; 9:antiox9111066. [PMID: 33143213 PMCID: PMC7692817 DOI: 10.3390/antiox9111066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 12/18/2022] Open
Abstract
The impaired ability to feed properly, evident in oncologic, elderly, and dysphagic patients, may result in malnutrition and sarcopenia. Increasing the consumption of dietary proteins by functional foods and enriching their composition by adding beneficial nutrients may represent an adjuvant therapy. We aimed to evaluate the safety and the positive effects of a standard diet (SD) supplemented with whey-derived protein puddings (WDPP), with appropriate rheological properties, and hemp seed oil (HSO), rich in polyphenols. Rats were assigned to SD, WDPP, WDPP plus hemp seed oil (HSOP), and HSO supplemented diets for eight weeks. “Anthropometric”, metabolic, and biochemical variables, oxidative stress, tissue injury, liver histology, and cardiac susceptibility to ischemia/reperfusion were analyzed. All the supplementations did not induce significant changes in biochemical and metabolic variables, also in relation to glucose tolerance, and livers did not undergo morphological alteration and injury. An improvement of cardiac post-ischemic function in the Langendorff perfused heart model and a reduction of infarct size were observed in WDPP and HSOP groups, thanks to their antioxidant effects and the activation of Akt- and AMPK-dependent protective pathways. Data suggest that (i) functional foods enriched with WDPP and HSOP may be used to approach malnutrition and sarcopenia successfully under disabling conditions, also conferring cardioprotection, and that (ii) adequate rheological properties could positively impact dysphagia-related problems.
Collapse
|
5
|
Wu J, Chen S, Liu Y, Liu Z, Wang D, Cheng Y. Therapeutic perspectives of heat shock proteins and their protein-protein interactions in myocardial infarction. Pharmacol Res 2020; 160:105162. [DOI: 10.1016/j.phrs.2020.105162] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/03/2020] [Accepted: 08/17/2020] [Indexed: 12/26/2022]
|
6
|
Di S, Wang Z, Hu W, Yan X, Ma Z, Li X, Li W, Gao J. The Protective Effects of Melatonin Against LPS-Induced Septic Myocardial Injury: A Potential Role of AMPK-Mediated Autophagy. Front Endocrinol (Lausanne) 2020; 11:162. [PMID: 32373063 PMCID: PMC7176935 DOI: 10.3389/fendo.2020.00162] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 03/09/2020] [Indexed: 12/12/2022] Open
Abstract
Aim: Melatonin is an indolamine secreted by the pineal gland, as well as most of the organs and tissues. In addition to regulating circadian biology, studies have confirmed the multiple pharmacological effects of melatonin. Melatonin provides a strong defense against septic myocardial injury. However, the underlying mechanism has not been fully described. In this study, we investigated the protective effects of melatonin against lipopolysaccharide (LPS)-induced myocardial injury as well as the mechanisms involved. Methods: Mice were intraperitoneally injected with LPS to induce a septic myocardial injury model or an LPS shock model, depending on the dose of LPS. Melatonin was given (20 mg/kg/day, via intraperitoneal injection) for a week prior to LPS insult. 6 h after LPS injection, echocardiographic analysis, TUNEL staining, transmission electron microscopy (TEM), western blot, quantitative real-time PCR and ELISA were used to investigate the protective effects of melatonin against LPS induced myocardial injury. AMPK inhibitor, autophagy activator and inhibitor, siRNAs were used for further validation. Results: Survival test showed that melatonin significantly increased the survival rate after LPS-induced shock. In the sepsis model, melatonin markedly ameliorated myocardial dysfunction, decreased the release of inflammatory cytokines, activated AMP-activated protein kinase (AMPK), improved mitochondrial function, and activated autophagy. To confirm whether the protection of melatonin was mediated by AMPK and autophagy, Compound C, an AMPK inhibitor; 3-MA, an autophagy inhibitor; and Rapamycin (Rapa), an autophagy activator, were used in this study. AMPK inhibition down-regulated autophagy, abolished protection of melatonin, as indicated by significantly decreased cardiac function, increased inflammation and damaged mitochondrial function. Furthermore, autophagy inhibition by 3-MA significantly impaired the protective effects of melatonin, whereas autophagy activation by Rapa reversed LPS + Compound C induced myocardial injury. In addition, in vitro studies further confirmed the protection of melatonin against LPS-induced myocardial injury and the mechanisms involving AMPK-mediated autophagy signaling. Conclusions: In summary, our results demonstrated that melatonin protects against LPS-induced septic myocardial injury by activating AMPK mediated autophagy pathway.
Collapse
Affiliation(s)
- Shouyin Di
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
- Department of Thoracic Surgery, Sixth Medical Center of PLA General Hospital, Beijing, China
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zheng Wang
- Department of Cardiothoracic Surgery, Central Theater Command General Hospital of Chinese People's Liberation Army, Wuhan, China
| | - Wei Hu
- Department of Immunology, The Fourth Military Medical University, Xi'an, China
| | - Xiaolong Yan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhiqiang Ma
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaofei Li
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Weimiao Li
- Department of Oncology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- *Correspondence: Weimiao Li
| | - Jianyuan Gao
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
- Jianyuan Gao
| |
Collapse
|
7
|
Zhang JQ, Yang QY, Xue FS, Zhang W, Yang GZ, Liao X, Meng FM. Preoperative oral thyroid hormones to prevent euthyroid sick syndrome and attenuate myocardial ischemia-reperfusion injury after cardiac surgery with cardiopulmonary bypass in children: A randomized, double-blind, placebo-controlled trial. Medicine (Baltimore) 2018; 97:e12100. [PMID: 30200092 PMCID: PMC6133632 DOI: 10.1097/md.0000000000012100] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Both euthyroid sick syndrome and myocardial ischemia-reperfusion injury are common and have been significantly associated with morbidity and mortality after pediatric cardiac surgery with cardiopulmonary bypass. This single-center, prospective, double-blind, randomized placebo-controlled clinical pilot trial was designed to assess if preoperative oral thyroid hormone therapy could prevent the occurrence of euthyroid sick syndrome (ESS) and attenuate myocardial ischemia-reperfusion injury (IRI) after cardiac surgery with cardiopulmonary bypass (CPB) in children. METHODS Forty children aged 3 to 12 year, scheduled for elective congenital heart disease repair surgery with CPB, were randomized into 2 groups of equal size to receive the following treatments in a double-blind manner: placebo (control group) and thyroid tablet 0.4 mg/kg (trial group) taken orally once a day for 4 days before surgery. The perioperative serum thyroid hormone levels and hemodynamic variables were determined. The extubation time, duration of intensive care unit (ICU) stay, and use of inotropic drugs in the ICU were recorded. The myocardial expressions of heat shock protein 70 (HSP70), myosin heavy chain (MHC) mRNA, and thyroid hormone receptor (TR) mRNA were detected. The serum creatine kinase-MB (CK-MB) activity and troponin I (TnI) positive ratio at 24 hour after surgery were assessed. RESULTS There were no significant differences in hemodynamic variables at all observed points, extubation time, and duration of ICU stay between groups. As compared with baselines on administration, serum triiodothyronine (T3) and free T3 (FT3) levels on the first, second, and fourth postoperative day, and serum thyrotropic-stimulating hormone (TSH), tetraiodothyronine (T4), and free T4 (FT4) levels on the first postoperative day were significantly decreased in the 2 groups. Serum T3, FT3, and T4 levels on the first and second postoperative day, and serum FT4 level on the first postoperative day were significantly higher in the trial group than in control group. As compared with the control group, the number of patients requiring inotropic drugs in the ICU, serum CK-MB activity, serum positive TnI ratio, and myocardial expression of MHCβ mRNA were significantly decreased, and myocardial expressions of both HSP70 and MHCα mRNA were significantly increased in the trial group. CONCLUSIONS In children undergoing cardiac surgery with CPB, preoperative oral small-dose thyroid hormone therapy reduces severity of postoperative ESS and provides a protection against myocardial IRI by increasing HSP70 and MHCα expression.
Collapse
Affiliation(s)
- Jia-Qiang Zhang
- Department of Anesthesiology, Henan Provincial People's Hospital of Zhengzhou University, Zhengzhou
| | - Quan-Yong Yang
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Fu-Shan Xue
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Wei Zhang
- Department of Anesthesiology, Henan Provincial People's Hospital of Zhengzhou University, Zhengzhou
| | - Gui-Zhen Yang
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Xu Liao
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Fan-Min Meng
- Department of Anesthesiology, Henan Provincial People's Hospital of Zhengzhou University, Zhengzhou
| |
Collapse
|
8
|
Song Y, Zhong C, Wang X. Heat shock protein 70: A promising therapeutic target for myocardial ischemia–reperfusion injury. J Cell Physiol 2018; 234:1190-1207. [DOI: 10.1002/jcp.27110] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/29/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Yan‐Jun Song
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino‐Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Heart Center, Zhujiang Hospital Southern Medical University Guangzhou China
- School of Laboratory Medicine and Biotechnology Southern Medical University Guangzhou China
| | - Chong‐Bin Zhong
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino‐Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Heart Center, Zhujiang Hospital Southern Medical University Guangzhou China
| | - Xian‐Bao Wang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino‐Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Heart Center, Zhujiang Hospital Southern Medical University Guangzhou China
| |
Collapse
|
9
|
Rocca C, Boukhzar L, Granieri MC, Alsharif I, Mazza R, Lefranc B, Tota B, Leprince J, Cerra MC, Anouar Y, Angelone T. A selenoprotein T-derived peptide protects the heart against ischaemia/reperfusion injury through inhibition of apoptosis and oxidative stress. Acta Physiol (Oxf) 2018; 223:e13067. [PMID: 29575758 DOI: 10.1111/apha.13067] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/13/2018] [Accepted: 03/19/2018] [Indexed: 12/13/2022]
Abstract
AIM Selenoprotein T (SelT or SELENOT) is a novel thioredoxin-like enzyme whose genetic ablation in mice results in early embryonic lethality. SelT exerts an essential cytoprotective action during development and after injury through its redox-active catalytic site. This study aimed to determine the expression and regulation of SelT in the mammalian heart in normal and pathological conditions and to evaluate the cardioprotective effect of a SelT-derived peptide, SelT43-52(PSELT) encompassing the redox motif which is key to its function, against ischaemia/reperfusion(I/R) injury. METHODS We used the isolated Langendorff rat heart model and different analyses by immunohistochemistry, Western blot and ELISA. RESULTS We found that SelT expression is very abundant in embryo but is undetectable in adult heart. However, SelT expression was tremendously increased after I/R. PSELT (5 nmol/L) was able to induce pharmacological post-conditioning cardioprotection as evidenced by a significant recovery of contractility (dLVP) and reduction of infarct size (IS), without changes in cardiac contracture (LVEDP). In contrast, a control peptide lacking the redox site did not confer cardioprotection. Immunoblot analysis showed that PSELT-dependent cardioprotection is accompanied by a significant increase in phosphorylated Akt, Erk-1/2 and Gsk3α-β, and a decrement of p38MAPK. PSELT inhibited the pro-apoptotic factors Bax, caspase 3 and cytochrome c and stimulated the anti-apoptotic factor Bcl-2. Furthermore, PSELT significantly reduced several markers of I/R-induced oxidative and nitrosative stress. CONCLUSION These results unravel the role of SelT as a cardiac modulator and identify PSELT as an effective pharmacological post-conditioning agent able to protect the heart after ischaemic injury.
Collapse
Affiliation(s)
- C. Rocca
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - L. Boukhzar
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - M. C. Granieri
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
| | - I. Alsharif
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - R. Mazza
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
| | - B. Lefranc
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - B. Tota
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
| | - J. Leprince
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - M. C. Cerra
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
| | - Y. Anouar
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - T. Angelone
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
| |
Collapse
|
10
|
Yang GZ, Xue FS, Liu YY, Li HX, Liu Q, Liao X. Effects of enteral different-dose levothyroxinesodium pretreatment on serum thyroid hormone levels and myocardial ischemia-reperfusion injury. Perfusion 2018; 33:584-592. [PMID: 29722287 DOI: 10.1177/0267659118769228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The available evidence shows that perioperative oral thyroid hormone can significantly attenuate the postoperative decline in the serum hormone level and improve postoperative hemodynamic and prognostic parameters. However, there has been no study assessing the effects of preoperative oral different-dose thyroid hormone on serum hormone levels and myocardial ischemia-reperfusion injury (IRI) after cardiac surgery. METHODS Forty-eight healthy Wistar rats, aged 35 days, were randomly allocated into six groups: Group BC, Group C and four pretreatment groups in which the rats were given levothyroxine-sodium of 10 μg, 20 μg, 40 μg and 80 μg/100 g. On the eighth day, the serum thyroid hormone levels were determined and then an isolated heart ischemia-reperfusion model was established with a Langendorff apparatus. RESULTS Compared with Groups BC and C, serum thyroid hormone levels on the eighth day did not significantly change in Group 10 μg, but were significantly increased in Groups 20 μg, 40 μg and 80 μg. The cardiac enzyme myocardial-bound creatine kinase levels in the coronary effluent during reperfusion were significantly lower in Groups 10 μg and 20 μg and 40 μg than in Group C. The recovery rates of + dp/dtmax and - dp/dtmax at 30 min during reperfusion were significantly lower in Groups 40 μg and 80 μg than in Groups 10 μg and 20 μg. Compared with Group C, myocardial expressions of heat shock protein 70 and myosin heavy chain α were increased in the four experiment groups and myocardial expression of thyroid hormone receptor α1 was significantly increased in Groups 20 μg, 40 μg and 80 μg. CONCLUSIONS The pretreatment with enterally smaller doses levothyroxine-sodium does not significantly affect serum thyroid hormone levels and produces protection against myocardial IRI, whereas pretreatment with enterally larger doses of levothyroxine-sodium can only provide an attenuated or insignificant cardioprotection because of hyperthyroxinemia. Cardioprotection by levothyroxine-sodium pretreatment is probably attributable to increased myocardial expression of heat shock protein 70 and myosin heavy chain α.
Collapse
Affiliation(s)
- Gui-Zhen Yang
- 1 Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fu-Shan Xue
- 2 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ya-Yang Liu
- 1 Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui-Xian Li
- 1 Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Liu
- 1 Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Liao
- 1 Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
11
|
Hui H, Zhai Y, Ao L, Cleveland JC, Liu H, Fullerton DA, Meng X. Klotho suppresses the inflammatory responses and ameliorates cardiac dysfunction in aging endotoxemic mice. Oncotarget 2017; 8:15663-15676. [PMID: 28152512 PMCID: PMC5362514 DOI: 10.18632/oncotarget.14933] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/27/2016] [Indexed: 11/25/2022] Open
Abstract
Background Aging augments endotoxemic cardiac dysfunction, but the mechanism remains unclear. Anti-aging protein Klotho has been found to modulate tissue inflammatory responses. We tested the hypothesis that a reduced Klotho level in aging heart plays a role in the augmented endotoxemic cardiac dysfunction. Materials and Methods Endotoxin (0.5 mg/kg, iv) was injected to adults (4-6 months) and aging (18-20 months) C57BL/6 mice. Recombinant Klotho (10 μg/kg, iv) was administered to a group of aging mice after endotoxin injection. Cardiac function was analyzed using a microcatheter at 24 and 48 h after endotoxin administration. Myocardial levels of Klotho and heat shock protein 70 (HSP70) were determined by immunoblotting, and plasma and myocardial cytokines were analyzed using ELISA. Results More severe cardiac dysfunction in aging mice were accompanied by greater cytokine levels in the plasma and myocardium. Klotho was detected in the myocardial tissue. Klotho levels were lower in aging hearts and were further reduced during endotoxemia. Myocardial HSP70 levels were correlated with Klotho levels. Recombinant Klotho increased myocardial HSP70, inhibited NF-κB activation, reduced cytokine levels, and improved cardiac function in aging endotoxemic mice. Delivery of HSP70 into cultured macrophages suppressed endotoxin-induced NF-κB activation. Conclusions Aging-related augmentation of inflammatory responses and cardiac dysfunction is associated with relative Klotho deficiency. Post-treatment with recombinant Klotho suppresses the inflammatory responses and improves cardiac function in aging endotoxemic mice. Klotho modulates HSP70 levels and HSP70 appears to be involved in the anti-inflammatory mechanism of Klotho. Klotho may have therapeutic potential in amelioration of aging-related endotoxemic cardiac dysfunction.
Collapse
Affiliation(s)
- Haipeng Hui
- Department of Surgery, University of Colorado Denver, Aurora, USA.,Department of Geriatric Cardiology, PLA General Hospital, Beijing, China
| | - Yufeng Zhai
- Department of Surgery, University of Colorado Denver, Aurora, USA
| | - Lihua Ao
- Department of Surgery, University of Colorado Denver, Aurora, USA
| | | | - Hongbin Liu
- Department of Geriatric Cardiology, PLA General Hospital, Beijing, China
| | | | - Xianzhong Meng
- Department of Surgery, University of Colorado Denver, Aurora, USA
| |
Collapse
|
12
|
Nigro A, Mauro L, Giordano F, Panza S, Iannacone R, Liuzzi GM, Aquila S, De Amicis F, Cellini F, Indiveri C, Panno ML. Recombinant Arabidopsis HSP70 Sustains Cell Survival and Metastatic Potential of Breast Cancer Cells. Mol Cancer Ther 2016; 15:1063-73. [PMID: 26939699 DOI: 10.1158/1535-7163.mct-15-0830] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 02/08/2016] [Indexed: 11/16/2022]
Abstract
The chaperone HSP70 protein is widely present in many different tumors and its expression correlates with an increased cell survival, low differentiation, and poor therapeutic outcome in human breast cancer. The intracellular protein has prevalently a cytoprotective function, while the extracellular HSP70 mediates immunologic responses. Evolutionarily, HSPs are well conserved from prokaryotes to eukaryotes, and human HSP70 shows a strong similarity to that of plant origin. In the current article, we have tested the potential effect of recombinant HSP70, from Arabidopsis thaliana, on cell survival and metastatic properties of breast cancer cells. Our data show that HSP70 sustains cell viability in MCF-7 and MDA-MB-231 breast tumoral cells and increases Cyclin D1 and Survivin expression. The extracellular HSP70 triggers cell migration and the activation of MMPs particularly in MDA-MB-231 cells. Furthermore, under UV-induced stress condition, the low levels of phospho-AKT were increased by exogenous HSP70, together with the upregulation of Cyclin D1, particularly in the tumoral cell phenotype. On the other hand, UV increased TP53 expression, and the coincubation of HSP70 lowers the TP53 levels similar to the control. These findings correlate with the cytoprotective and antiapoptotic role of HSPs, as reported in different cellular contexts. This is the first study on mammary cells that highlights how the heterologous HSP70 from Arabidopsis thaliana sustains cell survival prevalently in breast cancer cell types, thus maintaining their metastatic potential. Therefore, targeting HSP70 would be of clinical importance since HSP70 blocking selectively targets tumor cells, in which it supports cell growth and survival. Mol Cancer Ther; 15(5); 1063-73. ©2016 AACR.
Collapse
Affiliation(s)
- Alessandra Nigro
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Loredana Mauro
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Francesca Giordano
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Salvatore Panza
- Health Center, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Rina Iannacone
- ALSIA-Research Center Metapontum Agrobios, Metaponto, Matera, Italy
| | - Grazia Maria Liuzzi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, Aldo Moro University, Bari, Italy
| | - Saveria Aquila
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende (CS), Italy. Health Center, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Francesca De Amicis
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende (CS), Italy. Health Center, University of Calabria, Arcavacata di Rende (CS), Italy
| | | | - Cesare Indiveri
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Maria Luisa Panno
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende (CS), Italy.
| |
Collapse
|