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Yang X, Ma Z, Tan X, Shi Y, Yuan M, Chen G, Luo X, Hou L. Adoptive transfer of immature dendritic cells with high HO-1 expression delays the onset of T1DM in NOD mice. Life Sci 2023; 335:122273. [PMID: 37972884 DOI: 10.1016/j.lfs.2023.122273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
AIMS To investigate the potential of imDCs with high expression of HO-1 in preventing or delaying the onset of Type 1 diabetes mellitus (T1DM) in non-obese diabetic (NOD) mice. MATERIALS AND METHODS The phenotypic features of DCs in each group were assessed using flow cytometry. Western blot analysis was used to confirm the high expression of HO-1 in imDCs induced with CoPP. Additionally, flow cytometry was used to evaluate the suppressive capacity of CoPP-induced imDCs on splenic lymphocyte proliferation. Finally, the preventive effect of CoPP-induced imDCs was tested in NOD mice. KEY FINDINGS Compared to imDCs, CoPP-induced imDCs exhibited a reduced mean fluorescence intensity (MFI) of the co-stimulatory molecule CD80 on their surface (P < 0.05) and significantly increased HO-1 protein expression (P < 0.05). Following LPS stimulation, the MFI of co-stimulatory molecules CD80 and CD86 on the surface of CoPP-induced imDCs remained at a lower level (P < 0.05). Furthermore, there was a reduced proliferation rate of lymphocytes stimulated with anti-CD3/28 antibodies. The adoptive transfer of CoPP-imDCs significantly reduced the incidence of T1DM (16.66 % vs. control group: 66.67 %, P = 0.004). Furthermore, at 15 weeks of age, the insulitis score was also decreased in the CoPP-induced imDC treatment group (P < 0.05). There were no significant differences in serum insulin levels among all groups. SIGNIFICANCE ImDCs induced with CoPP and exhibiting high expression of HO-1 demonstrate a robust ability to inhibit immune responses and effectively reduce the onset of diabetes in NOD mice. This finding suggests that CoPP-induced imDCs could potentially serve as a promising treatment strategy for T1DM.
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Affiliation(s)
- Xi Yang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Ziyi Ma
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Xiaosheng Tan
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China; Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, People's Republic of China
| | - Yuzhen Shi
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Mingming Yuan
- Department of Nail and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Gang Chen
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China; Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, People's Republic of China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China.
| | - Ling Hou
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China.
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Bao J, Gao Z, Hu Y, Ye L, Wang L. Transient receptor potential vanilloid type 1: cardioprotective effects in diabetic models. Channels (Austin) 2023; 17:2281743. [PMID: 37983306 PMCID: PMC10761101 DOI: 10.1080/19336950.2023.2281743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023] Open
Abstract
Cardiovascular disease, especially heart failure (HF) is the leading cause of death in patients with diabetes. Individuals with diabetes are prone to a special type of cardiomyopathy called diabetic cardiomyopathy (DCM), which cannot be explained by heart diseases such as hypertension or coronary artery disease, and can contribute to HF. Unfortunately, the current treatment strategy for diabetes-related cardiovascular complications is mainly to control blood glucose levels; nonetheless, the improvement of cardiac structure and function is not ideal. The transient receptor potential cation channel subfamily V member 1 (TRPV1), a nonselective cation channel, has been shown to be universally expressed in the cardiovascular system. Increasing evidence has shown that the activation of TRPV1 channel has a potential protective influence on the cardiovascular system. Numerous studies show that activating TRPV1 channels can improve the occurrence and progression of diabetes-related complications, including cardiomyopathy; however, the specific mechanisms and effects are unclear. In this review, we summarize that TRPV1 channel activation plays a protective role in the heart of diabetic models from oxidation/nitrification stress, mitochondrial function, endothelial function, inflammation, and cardiac energy metabolism to inhibit the occurrence and progression of DCM. Therefore, TRPV1 may become a latent target for the prevention and treatment of diabetes-induced cardiovascular complications.
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Affiliation(s)
- Jiaqi Bao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zhicheng Gao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yilan Hu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Lifang Ye
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Lihong Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
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3
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Chen JX, Li L, Cantrell AC, Williams QA, Zeng H. High Glucose Activates Prolyl Hydroxylases and Disrupts HIF-α Signaling via the P53/TIGAR Pathway in Cardiomyocyte. Cells 2023; 12:1060. [PMID: 37048134 PMCID: PMC10093703 DOI: 10.3390/cells12071060] [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: 03/10/2023] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
The induction of hypoxia tolerance has emerged as a novel therapeutic strategy for the treatment of ischemic diseases. The disruption of hypoxic signaling by hyperglycemia has been shown to contribute to diabetic cardiomyopathy. In this study, we explored the potential molecular mechanisms by which high glucose (HG) impairs hypoxia-inducible factor-α (HIF-α) signaling in cardiomyocytes. The exposure of H9c2 cell lines to HG resulted in time- and concentration-dependent decreases in HIF-1α and HIF-2α expression together with an increase in prolyl hydroxylase-1,2 (PHD1 and PHD2) expression, the main regulators of HIF-α destabilization in the heart. The exposure of H9c2 cells to normal glucose (5.5 mM) and high glucose (15, 30, and 45 mM) led to dose-dependent increases in p53 and TIGAR and a decrease in SIRT3 expression. The pretreatment of H9c2 with p53 siRNA to knockdown p53 attenuated PHD1 and PHD2 expression, thus significantly enhancing HIF-1α and HIF-2α expression in H9c2 cells under HG conditions. Interestingly, pretreatment with p53 siRNA altered H9c2 cell metabolism by reducing oxygen consumption rate and increasing glycolysis. Similarly, pretreatment with TIGAR siRNA blunted HG-induced PHD1 and PHD2 expression. This was accompanied by an increase in HIF-1α and HIF-2α expression with a reduction in oxygen consumption rate in H9c2 cells. Furthermore, pretreatment with adenovirus-SIRT3 (Ad-SIRT3) significantly reduced the HG-induced expression of p53 and PHDs and increased HIF-1α levels in H9c2 cells. Ad-SIRT3 treatment also regulated PHDs-HIF-1α levels in the hearts of diabetic db/db mice. Our study revealed a novel role of the HG-induced disruption of PHDs-HIF-α signaling via upregulating p53 and TIGAR expression. Therefore, the p53/TIGAR signaling pathway may be a novel target for diabetic cardiomyopathy.
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Affiliation(s)
| | | | | | | | - Heng Zeng
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; (J.-X.C.)
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4
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Jiang W, Ding K, Yue R, Lei M. Therapeutic effects of icariin and icariside II on diabetes mellitus and its complications. Crit Rev Food Sci Nutr 2023:1-26. [PMID: 36591787 DOI: 10.1080/10408398.2022.2159317] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Diabetes mellitus (DM) is a global health issue in the twenty-first century, and there are numerous challenges in preventing and alleviating its chronic complications. The herb Epimedium has beneficial therapeutic effects on various human diseases, including DM. Its major flavonoid component, icariin, has significant anti-DM activity and may help improve pancreatic β-cell dysfunction and insulin resistance. Furthermore, preclinical evidence has shown that icariin and its in vivo bioactive form, icariside II, have preventive and therapeutic effects on several diabetic complications, including diabetic cardiomyopathy, diabetic vascular endothelial disorder, diabetic nephropathy, and diabetic erectile dysfunction. In this review, we present the general and toxicological information concerning icariin and icariside II and review the anti-DM effects of icariin from a molecular perspective. Additionally, we discuss the potential benefits of icariin and icariside II on the important pathological mechanisms of various diabetic complications. Despite positive preclinical evidence, additional investigations are needed before relevant clinical studies can be conducted. Therefore, we conclude with suggestions for future research. Hopefully, this review will provide a comprehensive molecular perspective for future research and product development related to icariin and icariside II in treating DM and diabetic complications.
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Affiliation(s)
- Wei Jiang
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kaixi Ding
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rensong Yue
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ming Lei
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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5
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Han J, Luo L, Wang Y, Wu S, Kasim V. Therapeutic potential and molecular mechanisms of salidroside in ischemic diseases. Front Pharmacol 2022; 13:974775. [PMID: 36060000 PMCID: PMC9437267 DOI: 10.3389/fphar.2022.974775] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/29/2022] [Indexed: 11/13/2022] Open
Abstract
Rhodiola is an ancient wild plant that grows in rock areas in high-altitude mountains with a widespread habitat in Asia, Europe, and America. From empirical belief to research studies, Rhodiola has undergone a long history of discovery, and has been used as traditional medicine in many countries and regions for treating high-altitude sickness, anoxia, resisting stress or fatigue, and for promoting longevity. Salidroside, a phenylpropanoid glycoside, is the main active component found in all species of Rhodiola. Salidroside could enhance cell survival and angiogenesis while suppressing oxidative stress and inflammation, and thereby has been considered a potential compound for treating ischemia and ischemic injury. In this article, we highlight the recent advances in salidroside in treating ischemic diseases, such as cerebral ischemia, ischemic heart disease, liver ischemia, ischemic acute kidney injury and lower limb ischemia. Furthermore, we also discuss the pharmacological functions and underlying molecular mechanisms. To our knowledge, this review is the first one that covers the protective effects of salidroside on different ischemia-related disease.
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Affiliation(s)
- Jingxuan Han
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Lailiu Luo
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Yicheng Wang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Shourong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
- The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Shourong Wu, ; Vivi Kasim,
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
- The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Shourong Wu, ; Vivi Kasim,
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Jubaidi FF, Zainalabidin S, Taib IS, Abdul Hamid Z, Mohamad Anuar NN, Jalil J, Mohd Nor NA, Budin SB. The Role of PKC-MAPK Signalling Pathways in the Development of Hyperglycemia-Induced Cardiovascular Complications. Int J Mol Sci 2022; 23:ijms23158582. [PMID: 35955714 PMCID: PMC9369123 DOI: 10.3390/ijms23158582] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/24/2022] [Accepted: 07/30/2022] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular disease is the most common cause of death among diabetic patients worldwide. Hence, cardiovascular wellbeing in diabetic patients requires utmost importance in disease management. Recent studies have demonstrated that protein kinase C activation plays a vital role in the development of cardiovascular complications via its activation of mitogen-activated protein kinase (MAPK) cascades, also known as PKC-MAPK pathways. In fact, persistent hyperglycaemia in diabetic conditions contribute to preserved PKC activation mediated by excessive production of diacylglycerol (DAG) and oxidative stress. PKC-MAPK pathways are involved in several cellular responses, including enhancing oxidative stress and activating signalling pathways that lead to uncontrolled cardiac and vascular remodelling and their subsequent dysfunction. In this review, we discuss the recent discovery on the role of PKC-MAPK pathways, the mechanisms involved in the development and progression of diabetic cardiovascular complications, and their potential as therapeutic targets for cardiovascular management in diabetic patients.
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Affiliation(s)
- Fatin Farhana Jubaidi
- Center for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (I.S.T.); (Z.A.H.); (N.A.M.N.)
- Correspondence: (F.F.J.); (S.B.B.); Tel.: +603-9289-7645 (S.S.B.)
| | - Satirah Zainalabidin
- Center for Toxicology and Health Risk Research, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (S.Z.); (N.N.M.A.)
| | - Izatus Shima Taib
- Center for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (I.S.T.); (Z.A.H.); (N.A.M.N.)
| | - Zariyantey Abdul Hamid
- Center for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (I.S.T.); (Z.A.H.); (N.A.M.N.)
| | - Nur Najmi Mohamad Anuar
- Center for Toxicology and Health Risk Research, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (S.Z.); (N.N.M.A.)
| | - Juriyati Jalil
- Center for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia;
| | - Nor Anizah Mohd Nor
- Center for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (I.S.T.); (Z.A.H.); (N.A.M.N.)
- Faculty of Health Sciences, University College MAIWP International, Kuala Lumpur 68100, Malaysia
| | - Siti Balkis Budin
- Center for Diagnostic, Therapeutic and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia; (I.S.T.); (Z.A.H.); (N.A.M.N.)
- Correspondence: (F.F.J.); (S.B.B.); Tel.: +603-9289-7645 (S.S.B.)
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7
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Kim CR, Cho YC, Lee SH, Han JH, Kim MJ, Ji HB, Kim S, Min CH, Shin BH, Lee C, Cho YM, Choy YB. Implantable device actuated by manual button clicks for noninvasive self-drug administration. Bioeng Transl Med 2022; 8:e10320. [PMID: 36684080 PMCID: PMC9842066 DOI: 10.1002/btm2.10320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023] Open
Abstract
Self-injectable therapy has several advantages in the treatment of metabolic disorders. However, frequent injections with needles impair patient compliance and medication adherence. Therefore, we develop a fully implantable device capable of on-demand administration of self-injection drugs via noninvasive manual button clicks on the outer skin. The device is designed to infuse the drug only at the moment of click actuation, which allows for an accurate and reproducible drug infusion, and also prevents unwanted drug leakage. Using a mechanical means of drug infusion, this implantable device does not contain any electronic compartments or batteries, making it compact, and semi-permanent. When tested in animals, the device can achieve subcutaneous injection-like pharmacokinetic and pharmacodynamic effects for self-injection drugs such as exenatide, insulin, and glucagon.
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Affiliation(s)
- Cho Rim Kim
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea
| | - Yong Chan Cho
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea
| | - Seung Ho Lee
- Institute of Medical and Biological Engineering, Medical Research CenterSeoul National UniversitySeoulSouth Korea
| | - Jae Hoon Han
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea
| | - Min Ji Kim
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea
| | - Han Bi Ji
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea
| | - Se‐Na Kim
- Institute of Medical and Biological Engineering, Medical Research CenterSeoul National UniversitySeoulSouth Korea
| | - Chang Hee Min
- Institute of Medical and Biological Engineering, Medical Research CenterSeoul National UniversitySeoulSouth Korea
| | - Byung Ho Shin
- Department of Biomedical EngineeringSeoul National University College of MedicineSeoulSouth Korea
| | - Cheol Lee
- Department of PathologySeoul National University College of MedicineSeoulSouth Korea
| | - Young Min Cho
- Department of Internal MedicineSeoul National University College of MedicineSeoulSouth Korea,Department of Translational Medicine, College of MedicineSeoul National UniversitySeoulSouth Korea
| | - Young Bin Choy
- Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoulSouth Korea,Institute of Medical and Biological Engineering, Medical Research CenterSeoul National UniversitySeoulSouth Korea,Department of Biomedical EngineeringSeoul National University College of MedicineSeoulSouth Korea
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8
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Fan X, Zhang X, Liu LC, Kim AY, Curley SP, Chen X, Dworkin LD, Cooper CJ, Gupta R. Interleukin-10 attenuates renal injury after myocardial infarction in diabetes. J Investig Med 2022; 70:1233-1242. [PMID: 35140126 DOI: 10.1136/jim-2021-002008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2022] [Indexed: 01/06/2023]
Abstract
Acute kidney injury (AKI) is a common complication after myocardial infarction (MI) and associated with significant morbidity and mortality. AKI after MI occurs more frequently in patients with diabetes, however, the underlying mechanisms are poorly understood, and specific treatments are lacking. Using the murine MI model, we show that diabetic mice had higher expression of the kidney injury marker, neutrophil gelatinase-associated lipocalin (NGAL), 3 days after MI compared with control mice. This higher expression of NGAL was still significant after controlling for differences in myocardial infarct size between diabetic and control mice. Prior data demonstrate increased cell-free hemoglobin after MI in diabetic mice. Therefore, we investigated heme clearance components, including heme oxygenase 1 (HO-1) and CD163, in the kidneys and found that both HO-1 and CD163 were dysregulated in diabetic mice pre-MI and post-MI. Significantly higher levels of urine iron were also observed in diabetic mice compared with control mice after MI. Next, the renal protective effect of interleukin 10 (IL-10) after MI was tested in diabetic MI. IL-10 treatment demonstrated multiple protective effects after diabetic MI including reduction in acute renal inflammation, upregulation of renal heme clearance pathways, attenuation of chronic renal fibrosis, and reduction in albuminuria after diabetic MI. In vitro, IL-10 potentiated hemoglobin-induced HO-1 expression in mouse bone marrow-derived macrophages and renal proximal tubule (HK-2) cells. Furthermore, IL-10 reduced hemoglobin-induced reactive oxygen species in HK-2 cells and collagen synthesis in mouse embryonic fibroblast cells. We conclude that impaired renal heme clearance pathways in diabetes contribute to AKI after MI, and IL-10 attenuates renal injury after diabetic MI.
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Affiliation(s)
- Xiaoming Fan
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Xiaolu Zhang
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Lijun C Liu
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Annes Y Kim
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Sean P Curley
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Xiaohuan Chen
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Lance D Dworkin
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Christopher J Cooper
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
| | - Rajesh Gupta
- Department of Medicine, University of Toledo - Health Science Campus, Toledo, Ohio, USA
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Taslim NA, Fitriana N, Suprapti NLE, Marsella CP, Bukhari A, Rasyid H, Aminuddin A, As’ad S, Aman AM, Madjid M. Effects of Channa striata Extract on Albumin Serum and Neutrophil-to-Lymphocyte Ratio in Hyperglycemic Rats with Wound Injury: A Randomized Control Study. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Patients with hyperglycemia often experience slow wound healing due to poor circulation. Extract from the striped snakehead fish Channa striata has anti-inflammatory properties and a high albumin level. It has been widely used to accelerate wound healing in a post-operative setting.
AIM: This study evaluated the effect of the C. striata extract Pujimin Plus® on the albumin serum level and neutrophil-to-lymphocyte ratio (NLR) in hyperglycemic rats experiencing wound injury.
METHODS: This randomized controlled experiment was performed in 30 streptozotocin-induced hyperglycemic adult male Wistar rats (Rattus norvegicus). The rats were intentionally wounded, and the albumin and NLR levels were evaluated regularly. Overall, 15 rats in the intervention group were given 81 mg/day C. striata extract, and 15 rats in the control group received sodium-carboxymethyl cellulose as a placebo for 10 days.
RESULTS: After 10 days of intervention the albumin level in the intervention group was higher than that in the control group (2.66 ± 0.36 vs. 2.46 ± 0.13 g/dL, p > 0.05); the intervention group also showed a lower neutrophil level (23.22% vs. 26.98%, p > 0.05), a higher lymphocyte level (65.66% vs. 62.16%, p > 0.05), and a lower NLR value (0.37 vs. 0.45, p > 0.05). None of these results was statistically significant.
CONCLUSION: There was a possible positive effect of C. striata extract on albumin serum level and NLR value following wound injury in hyperglycemic rats.
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Kudo K, Inoue T, Sonoda N, Ogawa Y, Inoguchi T. Relationship between serum bilirubin levels, urinary biopyrrin levels, and retinopathy in patients with diabetes. PLoS One 2021; 16:e0243407. [PMID: 33571217 PMCID: PMC7877782 DOI: 10.1371/journal.pone.0243407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/21/2021] [Indexed: 11/21/2022] Open
Abstract
Objective Previous reports have indicated that serum bilirubin levels may be associated with diabetic retinopathy. However, the detailed mechanism is not fully understood. In this study, we evaluated the relationship between the severity of diabetic retinopathy and various factors including bilirubin levels and factors influencing bilirubin metabolism. Methods The study participants consisted of 94 consecutive patients with diabetes mellitus admitted to Kyushu University Hospital from April 2011 to July 2012. The patients were classified into three groups: no retinopathy (NDR), simple retinopathy (SDR), and pre-proliferative or proliferative retinopathy (PDR). The relationship between the severity of retinopathy and various factors was evaluated using univariate and logistic regression analyses. In addition, multivariate regression analysis was performed to evaluate the significant determinants for bilirubin levels. Results In univariate analysis, a significant difference was found among NDR, SDR and PDR in bilirubin levels, duration of diabetes, systolic blood pressure, and macroalbuminuria. Logistic regression analysis showed that PDR was significantly associated with bilirubin levels, duration of diabetes, and systolic blood pressure (OR 0.737, 95% CI 0.570–0.952, P = 0.012; OR 1.085, 95% CI 1.024–1.149, P = 0.006; OR 1.036, 95% CI 1.011–1.062, P = 0.005, respectively). In turn, multivariate regression analysis showed that bilirubin levels were negatively associated with high-sensitivity C-reactive protein levels and PDR, but positively correlated with urinary biopyrrin levels, oxidized metabolites of bilirubin. Conclusion PDR was negatively associated with bilirubin levels. This negative association may be due to a decreased production of bilirubin rather than its increased consumption considering the positive association between bilirubin and biopyrrin levels.
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Affiliation(s)
- Kana Kudo
- Department of Internal Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoaki Inoue
- Department of Internal Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriyuki Sonoda
- Department of Internal Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Internal Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toyoshi Inoguchi
- Fukuoka City Health Promotion Support Center, Fukuoka City Medical Association, Fukuoka City, Japan
- * E-mail:
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Uddin MJ, Kim EH, Hannan MA, Ha H. Pharmacotherapy against Oxidative Stress in Chronic Kidney Disease: Promising Small Molecule Natural Products Targeting Nrf2-HO-1 Signaling. Antioxidants (Basel) 2021; 10:antiox10020258. [PMID: 33562389 PMCID: PMC7915495 DOI: 10.3390/antiox10020258] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/16/2022] Open
Abstract
The global burden of chronic kidney disease (CKD) intertwined with cardiovascular disease has become a major health problem. Oxidative stress (OS) plays an important role in the pathophysiology of CKD. The nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant responsive element (ARE) antioxidant system plays a critical role in kidney protection by regulating antioxidants during OS. Heme oxygenase-1 (HO-1), one of the targets of Nrf2-ARE, plays an important role in regulating OS and is protective in a variety of human and animal models of kidney disease. Thus, activation of Nrf2-HO-1 signaling may offer a potential approach to the design of novel therapeutic agents for kidney diseases. In this review, we have discussed the association between OS and the pathogenesis of CKD. We propose Nrf2-HO-1 signaling-mediated cell survival systems be explored as pharmacological targets for the treatment of CKD and have reviewed the literature on the beneficial effects of small molecule natural products that may provide protection against CKD.
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Affiliation(s)
- Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea; (M.J.U.); (E.H.K.)
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh;
| | - Ee Hyun Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea; (M.J.U.); (E.H.K.)
| | - Md. Abdul Hannan
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh;
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea; (M.J.U.); (E.H.K.)
- Correspondence: ; Tel.: +82-2-3277-4075
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12
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Bi F, Xu Y, Chen G, Wang P. Anti-inflammatory and Anti-endoplasmic reticulum stress Effects of catalpol Against myocardial ischemia-reperfusion injury in streptozotocin-induced diabetic rats. AN ACAD BRAS CIENC 2020; 92:e20191148. [PMID: 33237136 DOI: 10.1590/0001-3765202020191148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/14/2020] [Indexed: 01/19/2023] Open
Abstract
The current study was designed to investigate the effects and the mechanism of catalpol on myocardial ischemia-reperfusion (MI/R) injury in a diabetic rat model. Male Sprague-Dawley rats were divided into DM + sham, DM +I/R, and DM +I/R + C groups and diabetes was induced using single injections of streptozotocin (STZ; 70 mg/kg; i.p). After confirming the induction of diabetes, rats were administered physiological saline and catalpol (10 mg/kg; i.p.) daily for 28 days. Subsequently, rats were subjected to left anterior descending (LAD) coronary artery occlusion for 30 min followed by reperfusion for 2 h. Haemodynamic parameters were recorded throughout surgery, and following sacrifice, hearts were isolated for biochemical, histopathological, and molecular analyses. Catalpol treatment significantly ameliorated MI/R injury by improving cardiac function, normalizing myocardial enzyme activities and markers of oxidative stress, and by maintaining myocardial architecture. Furthermore, expression levels of the inflammatory cytokines TNF-α and IL-6 were decreased in biochemical and immunohistochemical studies. Additionally, the cardioprotective effects of catalpol were partly related to reductions in myocardial endoplasmic reticulum stress (ERS). In conclusion, catalpol exerts cardioprotective effects in diabetic rats by attenuating inflammation and inhibiting ERS.
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Affiliation(s)
- Fangjie Bi
- Heart Center, Zibo Central Hospital, 255400 Shandong, China
| | - Yujia Xu
- Department of Echocardiography, Zibo Central Hospital, 255400 Shandong, China
| | - Guangxin Chen
- Department of Emergency, Zibo Central Hospital, 255400 Shandong, China
| | - Pan Wang
- Department of Pain Treatment, Zibo Central Hospital, 255400 Shandong, China
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13
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Influence of Hyperglycemia on Dexmedetomidine-Induced Cardioprotection in the Isolated Perfused Rat Heart. J Clin Med 2020; 9:jcm9051445. [PMID: 32413983 PMCID: PMC7290666 DOI: 10.3390/jcm9051445] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Pharmacological preconditioning (PC) and postconditioning (PoC), for example, by treatment with the α2-adrenoreceptor agonist Dexmedetomidine (Dex), protects hearts from ischemia-reperfusion (I/R) injury in experimental studies, however, translation into the clinical setting has been challenging. Acute hyperglycemia adversely affects the outcome of patients with myocardial infarction. Additionally, it also blocks cardioprotection by multiple pharmacological agents. Therefore, we investigated the possible influence of acute hyperglycemia on Dexmedetomidine-induced pre- and postconditioning. Experiments were performed on the hearts of male Wistar rats, which were randomized into 7 groups, placed in an isolated Langendorff system and perfused with Krebs-Henseleit buffer. All hearts underwent 33 min of global ischemia, followed by 60 min of reperfusion. Control (Con) hearts received Krebs-Henseleit buffer (Con KHB), glucose (Con HG) or mannitol (Con NG) as vehicle only. Hearts exposed to hyperglycemia (HG) received KHB, containing 11 mmol/L glucose (an elevated, but commonly used glucose concentration for Langendorff perfused hearts) resulting in a total concentration of 22 mmol/L glucose throughout the whole experiment. To ensure comparable osmolarity with HG conditions, normoglycemic (NG) hearts received mannitol in addition to KHB. Hearts were treated with 3 nM Dexmedetomidine (Dex) before (DexPC) or after ischemia (DexPoC), under hyperglycemic or normoglycemic conditions. Infarct size was determined by triphenyltetrazoliumchloride staining. Acute hyperglycemia had no impact on infarct size compared to the control group with KHB (Con HG: 56 ± 9% ns vs. Con KHB: 56 ± 7%). DexPC reduced infarct size despite elevated glucose levels (DexPC HG: 35 ± 3%, p < 0.05 vs. Con HG). However, treatment with Dex during reperfusion showed no infarct size reduction under hyperglycemic conditions (DexPoC HG: 57 ± 9%, ns vs. Con HG). In contrast, hearts treated with mannitol demonstrated a significant decrease in infarct size compared to the control group (Con NG: 37 ± 3%, p < 0.05 vs. Con KHB). The combination of Dex and mannitol presents exactly opposite results to hearts treated with hyperglycemia. While DexPC completely abrogates infarct reduction through mannitol treatment (DexPC NG: 55 ± 7%, p < 0.05 vs. Con NG), DexPoC had no impact on mannitol-induced infarct size reduction (DexPoC NG: 38 ± 4%, ns vs. Con NG). Acute hyperglycemia inhibits DexPoC, while it has no impact on DexPC. Treatment with mannitol induces cardioprotection. Application of Dex during reperfusion does not influence mannitol-induced infarct size reduction, however, administering Dex before ischemia interferes with mannitol-induced cardioprotection.
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14
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Russell JS, Griffith TA, Helman T, Du Toit EF, Peart JN, Headrick JP. Chronic type 2 but not type 1 diabetes impairs myocardial ischaemic tolerance and preconditioning in C57Bl/6 mice. Exp Physiol 2019; 104:1868-1880. [PMID: 31535419 DOI: 10.1113/ep088024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/18/2019] [Indexed: 01/08/2023]
Abstract
NEW FINDINGS • What is the central question of this study? What is the impact of chronic adult-onset diabetes on cardiac ischaemic outcomes and preconditioning? • What is the main finding and its importance? Chronic adult-onset type 2 but not type 1 diabetes significantly impairs myocardial ischaemic tolerance and ischaemic preconditioning. Preconditioning may be detrimental in type 2 diabetes, exaggerating nitrosative stress and apoptotic protein expression. ABSTRACT Effects of diabetes on myocardial responses to ischaemia-reperfusion (I-R) and cardioprotective stimuli remain contentious, potentially reflecting influences of disease duration and time of onset. Chronic adult-onset type 1 diabetes (T1D) and type 2 diabetes (T2D) were modelled non-genetically in male C57Bl/6 mice via 5 × 50 mg kg-1 daily streptozotocin (STZ) injections + 12 weeks' standard chow or 1 × 75 mg kg-1 STZ injection + 12 weeks' obesogenic diet (32% calories as fat, 57% carbohydrate, 11% protein), respectively. Systemic outcomes were assessed and myocardial responses to I-R ± ischaemic preconditioning (IPC; 3 × 5 min I-R) determined in Langendorff perfused hearts. Uncontrolled T1D was characterised by pronounced hyperglycaemia (25 mm fasting glucose), glucose intolerance and ∼10% body weight loss, whereas T2D mice exhibited moderate hyperglycaemia (15 mm), hyperinsulinaemia, glucose intolerance and 17% weight gain. Circulating ghrelin, resistin and noradrenaline were unchanged with T1D, while leptin increased and noradrenaline declined in T2D mice. Ischaemic tolerance and IPC were preserved in T1D hearts. In contrast, T2D worsened post-ischaemic function (∼40% greater diastolic and contractile dysfunction) and cell death (100% higher troponin efflux), and abolished IPC protection. Whereas IPC reduced post-ischaemic nitrotyrosine and pro-apoptotic Bak and Bax levels in non-diabetic hearts, these effects were reduced in T1D and IPC augmented Bax and nitrosylation in T2D hearts. The data demonstrate chronic T1D does not inhibit myocardial I-R tolerance or IPC, whereas metabolic and endocrine disruption in T2D is associated with ischaemic intolerance and inhibition of IPC. Indeed, normally protective IPC may exaggerate damage mechanisms in T2D hearts.
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Affiliation(s)
- Jake S Russell
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
| | - Tia A Griffith
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
| | - Tessa Helman
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
| | - Eugene F Du Toit
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
| | - Jason N Peart
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
| | - John P Headrick
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, 4217, Australia
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15
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Zhang J, Nugrahaningrum DA, Marcelina O, Ariyanti AD, Wang G, Liu C, Wu S, Kasim V. Tyrosol Facilitates Neovascularization by Enhancing Skeletal Muscle Cells Viability and Paracrine Function in Diabetic Hindlimb Ischemia Mice. Front Pharmacol 2019; 10:909. [PMID: 31474865 PMCID: PMC6702659 DOI: 10.3389/fphar.2019.00909] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/18/2019] [Indexed: 12/22/2022] Open
Abstract
As one of the most severe manifestations of diabetes, vascular complications are the main causes of diabetes-related morbidity and mortality. Hyperglycemia induces systemic abnormalities, including impaired angiogenesis, causing diabetic patients to be highly susceptible in suffering hindlimb ischemia (HLI). Despite its severe prognosis, there is currently no effective treatment for diabetic HLI. Skeletal muscle cells secrete multiple angiogenic factors, hence, recently are reported to be critical for angiogenesis; however, hyperglycemia disrupted the paracrine function in skeletal muscle cells, leading to the impaired angiogenesis potential observed in diabetic patients. The present study showed that tyrosol, a phenylethanoid compound, suppresses accumulation of intracellular reactive oxygen species (ROS) caused by hyperglycemia, most plausibly by promoting heme oxygenase-1 (HO-1) expression in skeletal muscle cells. Consequently, tyrosol exerts cytoprotective function against hyperglycemia-induced oxidative stress in skeletal muscle cells, increases their proliferation vigorously, and simultaneously suppresses apoptosis. Furthermore, tyrosol grossly increases the secretion of vascular endothelial growth factor-A (VEGF-A) and platelet-derived growth factor-BB (PDGF-BB) from skeletal muscle cells. This leads to enhanced proliferation and migration capabilities of vascular endothelial and smooth muscle cells, two types of cells that are responsible in forming blood vessels, through cell-cell communication. Finally, in vivo experiment using the diabetic HLI mouse model showed that tyrosol injection into the gastrocnemius muscle of the ischemic hindlimb significantly enhances the formation of functional blood vessels and subsequently leads to significant recovery of blood perfusion. Overall, our findings highlight the potential of the pharmacological application of tyrosol as a small molecule drug for therapeutic angiogenesis in diabetic HLI patients.
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Affiliation(s)
- Jianqi Zhang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Dyah Ari Nugrahaningrum
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Olivia Marcelina
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Agnes Dwi Ariyanti
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Guixue Wang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Caiping Liu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China
| | - Shourong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
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16
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Laso-García F, Diekhorst L, Gómez-de Frutos MC, Otero-Ortega L, Fuentes B, Ruiz-Ares G, Díez-Tejedor E, Gutiérrez-Fernández M. Cell-Based Therapies for Stroke: Promising Solution or Dead End? Mesenchymal Stem Cells and Comorbidities in Preclinical Stroke Research. Front Neurol 2019; 10:332. [PMID: 31024426 PMCID: PMC6467162 DOI: 10.3389/fneur.2019.00332] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/19/2019] [Indexed: 01/11/2023] Open
Abstract
Stroke is a major health problem worldwide. It has been estimated that 90% of the population attributable risk of stroke is due to risk factors such as aging, hypertension, hyperglycemia, diabetes mellitus and obesity, among others. However, most animal models of stroke use predominantly healthy and young animals. These models ignore the main comorbidities associated with cerebrovascular disease, which could be one explanation for the unsuccessful bench-to-bedside translation of protective and regenerative strategies by not taking the patient's situation into account. This lack of success makes it important to incorporate comorbidities into animal models of stroke in order to study the effects of the various therapeutic strategies tested. Regarding cell therapy, the administration of stem cells in the acute and chronic phases has been shown to be safe and effective in experimental animal models of stroke. This review aims to show the results of studies with promising new therapeutic strategies such as mesenchymal stem cells, which are being tested in preclinical models of stroke associated with comorbidities and in elderly animals.
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Affiliation(s)
- Fernando Laso-García
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Luke Diekhorst
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Mari Carmen Gómez-de Frutos
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Laura Otero-Ortega
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Blanca Fuentes
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Gerardo Ruiz-Ares
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - Exuperio Díez-Tejedor
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
| | - María Gutiérrez-Fernández
- Neuroscience and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Center, La Paz University Hospital, Neuroscience Area of IdiPAZ Health Research Institute, Autonoma University of Madrid, Madrid, Spain
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17
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Ariyanti AD, Zhang J, Marcelina O, Nugrahaningrum DA, Wang G, Kasim V, Wu S. Salidroside-Pretreated Mesenchymal Stem Cells Enhance Diabetic Wound Healing by Promoting Paracrine Function and Survival of Mesenchymal Stem Cells Under Hyperglycemia. Stem Cells Transl Med 2019; 8:404-414. [PMID: 30624028 PMCID: PMC6431607 DOI: 10.1002/sctm.18-0143] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022] Open
Abstract
Systemic abnormalities cause several complications in diabetes patients. Impaired wound healing is a serious complication that leads to severe foot ulcer and amputation. Mesenchymal stem cells (MSCs) have been considered a promising strategy for promoting wound healing due to their paracrine function. However, their poor survival after transplantation limits their therapeutic effect and applications. Salidroside, a glucopyranoside, has been reported to exert cytoprotective effects. Our previous study revealed that salidroside could promote the paracrine function of skeletal muscle cells. However, whether salidroside could improve MSCs survival under hyperglycemic condition and, subsequently, promote wound healing in diabetic model mice remains unknown. Here, we found that salidroside pretreatment effectively reversed the hyperglycemia-induced suppression of the expression of crucial wound healing factors in MSCs, such as heme oxygenase-1 (HO-1), fibroblast growth factor 2 (FGF2), and hepatocyte growth factor (HGF). Salidroside pretreatment also suppressed the hyperglycemia-induced intracellular reactive oxygen species (ROS) levels in MSCs, thereby lowering the apoptosis rate and enhancing MSCs survival rate. Furthermore, salidroside improved the MSCs migration potential that was impaired under hyperglycemia. in vivo experiments revealed that salidroside pretreatment prior to transplantation significantly enhanced the effect of MSCs in promoting wound closure in diabetic mice. Collectively, our results suggest that pretreatment with salidroside could be an effective strategy to enhance the survival rate and the therapeutic effect of MSCs. Thus, our article suggested a novel, potential MSC-based strategy for diabetic wound healing. Stem Cells Translational Medicine 2019;8:404-414.
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Affiliation(s)
- Agnes Dwi Ariyanti
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Jianqi Zhang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Olivia Marcelina
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Dyah Ari Nugrahaningrum
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Guixue Wang
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Shourong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
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Trotta MC, Maisto R, Alessio N, Hermenean A, D'Amico M, Di Filippo C. The Melanocortin MC5R as a New Target for Treatment of High Glucose-Induced Hypertrophy of the Cardiac H9c2 Cells. Front Physiol 2018; 9:1475. [PMID: 30416452 PMCID: PMC6212602 DOI: 10.3389/fphys.2018.01475] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/28/2018] [Indexed: 12/15/2022] Open
Abstract
The study explored the anti-hypertrophic effect of the melanocortin MC5R stimulation in H9c2 cardiac myocytes exposed to high glucose. This has been done by using α-MSH and selective MC5R agonists and assessing the expression of GLUT4 and GLUT1 transporters, miR-133 and urotensin receptor levels as a marker of cardiac hypertrophy. The study shows for the first time an up-regulation of MC5R expression levels in H9c2 cardiomyocytes exposed to high glucose medium (33 mM D-glucose) for 48 h, compared to cells grown in normal glucose medium (5.5 mM D-glucose). Moreover, H9c2 cells exposed to high glucose showed a significant reduction in cell viability (-40%), a significant increase in total protein per cell number (+109%), and an increase of the urotensin receptor expression levels as an evidence of cells hypertrophy. The pharmacological stimulation of MC5R with α-MSH (90 pM)of the high glucose exposed H9c2 cells increased the cell survival (+50,8%) and reduced the total protein per cell number (-28,2%) with respect to high glucose alone, confirming a reduction of the hypertrophic state as per cell area measurement. Similarly, PG-901 (selective agonist, 10-10 M) significantly increased cell viability (+61,0 %) and reduced total protein per cell number (-40,2%), compared to cells exposed to high glucose alone. Interestingly, the MC5R agonist reduced the GLUT1/GLUT4 glucose transporters ratio on the cell membranes exhibited by the hypertrophic H9c2 cells and increased the intracellular PI3K activity, mediated by a decrease of the levels of the miRNA miR-133a. The beneficial effects of MC5R agonism on the cardiac hypertrophy caused by high glucose was also observed also by echocardiographic evaluations of rats made diabetics with streptozotocin (65 mg/kg i.p.). Therefore, the melanocortin MC5R could be a new target for the treatment of high glucose-induced hypertrophy of the cardiac H9c2 cells.
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Affiliation(s)
- Maria Consiglia Trotta
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Rosa Maisto
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Nicola Alessio
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Anca Hermenean
- Institute of Life Sciences, "Vasile Goldis" Western University of Arad, Arad, Romania
| | - Michele D'Amico
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Clara Di Filippo
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
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19
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Ji Z, Zeng L, Cheng Y, Liang G. [Poly(ADP-ribose) polymerases-1 inhibitor MRL-45696 alleviates DNA damage after myocardial ischemia-reperfusion in diabetic rats]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2018; 38:830-835. [PMID: 33168502 DOI: 10.3969/j.issn.1673-4254.2018.07.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To study the protective effect of MRL-45696, an inhibitor of poly(ADP-ribose) polymerase-1 (PARP-1), against DNA damage after myocardial ischemia/reperfusion (I/R) in diabetic rats. METHODS Rat models of type 2 diabetes mellitus were established by high-fat feeding and a single peritoneal dose of streptozotocin. Forty diabetic rats were randomized equally into diabetic group, sham-operated group, sham-operated group with MRL-45696 treatment, I/R injury model group and I/R injury group with MRL-45696 treatment. The rats in MRL-45696-treated groups were subjected to daily intragastric administration of MRL-45696 (50 mg/kg) for 7 consecutive days, after which sham operation was performed or myocardial I/R injury was induced by ligation of the left anterior descending coronary artery for 30 min followed by reperfusion for 120 min. The range of myocardial infarction, plasma cardiac troponin I (cTnI), serum creatine kinase (CK), lactate dehydrogenase (LDH) activity, malondialdehyde (MDA), superoxide dismutase (SOD) activity, and cardiac myocyte apoptosis were detected. The levels of γ-H2AX, cleaved caspase-3, PARP-1, and PAR were detected with Western blotting, and the level of NAD was detected using colorimetry. RESULTS The infarct size was significantly smaller in MRL-45696 treatment group than in I/R injury group (P < 0.05). In I/R model group, the levels of cTnI, CK, and LDH in the plasma or serum and MDA, γ-H2AX, cleaved caspase-3 and apoptotic rate in the cardiac myocytes were significantly higher than those in the other groups (P < 0.05), and SOD activity was significantly decreased (P < 0.05). Compared with I/R model group, the rats with MRL- 45696 treatment showed significantly decreased levels of cTnI, CK, LDH, MDA, γ-H2AX, cleaved caspase-3, PARP- 1, PAR expression and cell apoptosis with significantly increased levels of SOD and NAD (P < 0.05). CONCLUSIONS MRL-45696 can inhibit excessive activation of PARP-1, increase intracellular level of NAD and inhibit cardiac myocyte apoptosis to alleviate myocardial I/R-induced DNA damage and reduce myocardial infarct size in diabetic rats.
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Affiliation(s)
- Zhonghua Ji
- Department of Anesthesiology, Affiliated Zhuhai Hospital of Jinan University, Zhuhai 519000, China
| | - Lulu Zeng
- Department of Anesthesiology, Affiliated Zhuhai Hospital of Jinan University, Zhuhai 519000, China
| | - Yongjun Cheng
- Department of Anesthesiology, Affiliated Zhuhai Hospital of Jinan University, Zhuhai 519000, China
| | - Genqiang Liang
- Department of Anesthesiology, Affiliated Zhuhai Hospital of Jinan University, Zhuhai 519000, China
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Honokiol Ameliorates Myocardial Ischemia/Reperfusion Injury in Type 1 Diabetic Rats by Reducing Oxidative Stress and Apoptosis through Activating the SIRT1-Nrf2 Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:3159801. [PMID: 29675132 PMCID: PMC5838504 DOI: 10.1155/2018/3159801] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/29/2017] [Indexed: 01/07/2023]
Abstract
Reducing oxidative stress is a crucial therapeutic strategy for ameliorating diabetic myocardial ischemia/reperfusion (MI/R) injury. Honokiol (HKL) acts as an effective cardioprotective agent for its strong antioxidative activity. However, its roles and underlying mechanisms against MI/R injury in type 1 diabetes (T1D) remain unknown. Since SIRT1 and Nrf2 are pivotal regulators in diabetes mellitus patients suffering from MI/R injury, we hypothesized that HKL ameliorates diabetic MI/R injury via the SIRT1-Nrf2 signaling pathway. Streptozotocin-induced T1D rats and high-glucose-treated H9c2 cells were exposed to HKL, with or without administration of the SIRT1 inhibitor EX527, SIRT1 siRNA, or Nrf2 siRNA, and then subjected to I/R operation. We found that HKL markedly improved the postischemic cardiac function, decreased the infarct size, reduced the myocardial apoptosis, and diminished the reactive oxygen species generation. Intriguingly, HKL remarkably activated SIRT1 signaling, enhanced Nrf2 nuclear translocation, increased antioxidative signaling, and decreased apoptotic signaling. However, these effects were largely abolished by EX527 or SIRT1 siRNA. Additionally, our cellular experiments showed that Nrf2 siRNA blunted the cytoprotective effects of HKL, without affecting SIRT1 expression and activity. Collectively, these novel findings indicate that HKL abates MI/R injury in T1D by ameliorating myocardial oxidative damage and apoptosis via the SIRT1-Nrf2 signaling pathway.
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21
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Yang YY, Sun XT, Li ZX, Chen WY, Wang X, Liang ML, Shi H, Yang ZS, Zeng WT. Protective effect of angiotensin-(1-7) against hyperglycaemia-induced injury in H9c2 cardiomyoblast cells via the PI3K̸Akt signaling pathway. Int J Mol Med 2017; 41:1283-1292. [PMID: 29286068 PMCID: PMC5819934 DOI: 10.3892/ijmm.2017.3322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 11/20/2017] [Indexed: 01/17/2023] Open
Abstract
Angiotensin-(1-7) [Ang-(1-7)], a heptapeptide mainly generated from cleavage of AngⅠ and AngⅡ, possesses physiological and pharmacological properties, including anti‑inflammatory and antidiabetic properties. Activation of the phosphoinositide 3-kinase and protein kinase B (PI3K̸Akt) signaling pathway has been confirmed to participate in cardioprotection against hyperglycaemia-induced injury. The aim of the present study was to test the hypothesis that Ang-(1-7) protects H9c2 cardiomyoblast cells against high glucose (HG)-induced injury by activating the PI3K̸Akt pathway. To examine this hypothesis, H9c2 cells were treated with 35 mmol/l (mM) glucose (HG) for 24 h to establish a HG-induced cardiomyocyte injury model. The cells were co-treated with 1 µmol/l (µM) Ang-(1-7) and 35 mM glucose. The findings of the present study demonstrated that exposure of H9c2 cells to HG for 24 h markedly induced injury, as evidenced by an increase in the percentage of apoptotic cells, generation of reactive oxygen species and level of inflammatory cytokines, as well as a decline in cell viability and mitochondrial luminosity. These injuries were significantly attenuated by co-treatment of the cells with Ang-(1-7) and HG. In addition, PI3K̸Akt phosphorylation was suppressed by HG treatment, but this effect was abolished when the H9c2 cells were co-treated with Ang-(1-7) and HG. Furthermore, the cardioprotection of Ang-(1-7) against HG-induced injury in H9c2 cardiomyoblasts was highly attenuated in the presence of either D-Ala7-Ang-(1-7) (A-779, an antagonist of the Mas receptor) or LY294002 (an inhibitor of PI3K̸Akt). In conclusion, the present study provided new evidence that Ang-(1-7) protects H9c2 cardiomyoblasts against HG-induced injury by activating the PI3K̸Akt signaling pathway.
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Affiliation(s)
- Yi-Ying Yang
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xiu-Ting Sun
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zheng-Xun Li
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wei-Yan Chen
- Intensive Care Unit, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Xiang Wang
- Department of Cardiology, Laiwu City People's Hospital, Laiwu, Shandong 27110, P.R. China
| | - Mei-Ling Liang
- Department of Cardiology, Sun Yat-Sen Cardiovascular Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Hui Shi
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhi-Sheng Yang
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wu-Tao Zeng
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
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22
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Russell J, Du Toit EF, Peart JN, Patel HH, Headrick JP. Myocyte membrane and microdomain modifications in diabetes: determinants of ischemic tolerance and cardioprotection. Cardiovasc Diabetol 2017; 16:155. [PMID: 29202762 PMCID: PMC5716308 DOI: 10.1186/s12933-017-0638-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/22/2017] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular disease, predominantly ischemic heart disease (IHD), is the leading cause of death in diabetes mellitus (DM). In addition to eliciting cardiomyopathy, DM induces a ‘wicked triumvirate’: (i) increasing the risk and incidence of IHD and myocardial ischemia; (ii) decreasing myocardial tolerance to ischemia–reperfusion (I–R) injury; and (iii) inhibiting or eliminating responses to cardioprotective stimuli. Changes in ischemic tolerance and cardioprotective signaling may contribute to substantially higher mortality and morbidity following ischemic insult in DM patients. Among the diverse mechanisms implicated in diabetic impairment of ischemic tolerance and cardioprotection, changes in sarcolemmal makeup may play an overarching role and are considered in detail in the current review. Observations predominantly in animal models reveal DM-dependent changes in membrane lipid composition (cholesterol and triglyceride accumulation, fatty acid saturation vs. reduced desaturation, phospholipid remodeling) that contribute to modulation of caveolar domains, gap junctions and T-tubules. These modifications influence sarcolemmal biophysical properties, receptor and phospholipid signaling, ion channel and transporter functions, contributing to contractile and electrophysiological dysfunction, cardiomyopathy, ischemic intolerance and suppression of protective signaling. A better understanding of these sarcolemmal abnormalities in types I and II DM (T1DM, T2DM) can inform approaches to limiting cardiomyopathy, associated IHD and their consequences. Key knowledge gaps include details of sarcolemmal changes in models of T2DM, temporal patterns of lipid, microdomain and T-tubule changes during disease development, and the precise impacts of these diverse sarcolemmal modifications. Importantly, exercise, dietary, pharmacological and gene approaches have potential for improving sarcolemmal makeup, and thus myocyte function and stress-resistance in this ubiquitous metabolic disorder.
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Affiliation(s)
- Jake Russell
- Menzies Health Institute Queensland, Griffith University, Southport, QLD, Australia
| | - Eugene F Du Toit
- Menzies Health Institute Queensland, Griffith University, Southport, QLD, Australia
| | - Jason N Peart
- Menzies Health Institute Queensland, Griffith University, Southport, QLD, Australia
| | - Hemal H Patel
- VA San Diego Healthcare System and Department of Anesthesiology, University of California San Diego, San Diego, USA
| | - John P Headrick
- Menzies Health Institute Queensland, Griffith University, Southport, QLD, Australia. .,School of Medical Science, Griffith University, Southport, QLD, 4217, Australia.
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23
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Soh S, Jun JH, Song JW, Shin EJ, Kwak YL, Shim JK. Ethyl pyruvate attenuates myocardial ischemia-reperfusion injury exacerbated by hyperglycemia via retained inhibitory effect on HMGB1. Int J Cardiol 2017; 252:156-162. [PMID: 29169909 DOI: 10.1016/j.ijcard.2017.11.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/19/2017] [Accepted: 11/13/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Hyperglycemia (HG) exacerbates myocardial ischemia/reperfusion (I/R) injury and renders protective strategies ineffective by amplified inflammatory response via enhanced high-mobility group box-1 (HMGB1) release. This study investigated the role of ethyl pyruvate (EP) against myocardial I/R injury under a clinically relevant HG condition. METHODS Sprague-Dawley rats (n=76) were randomly assigned to 6 groups: normoglycemia (NG)-Sham, NG-I/R-control (C, saline), NG-I/R-EP treatment (50mg/kg) upon reperfusion, HG-Sham, HG-I/R-C, and HG-I/R-EP treatment upon reperfusion. HG was induced by 1.2g/kg dextrose. I/R was induced by ligation of the left anterior descending artery for 30min followed by 4h of reperfusion. RESULTS HG resulted in exacerbation of myocardial infarct size by 19% with amplified activation of HMGB1-receptors of advanced glycation end products/toll like receptors-NF-κB pathway compared to NG following I/R, which all could be attenuated by EP. EP treatment was associated with diminished tumor necrosis factor-α, interleukin-1β, and interleukin-6 expressions. It also served to normalize the increase in pro-apoptotic Bax and the decrease in anti-apoptotic Bcl-2 protein levels. These effects were associated with decreased myocardial apoptosis and infarct size (by 30% and 36% in the NG and HG groups, respectively) regardless of the glycemic condition. CONCLUSION HG exacerbated myocardial I/R injury through amplified inflammatory response via increased HMGB1 level. EP treatment upon reperfusion conveyed significant myocardial protection against the I/R injury under both NG and HG conditions. Common to both glycemic conditions, associated mechanisms involved attenuated increase in HMGB1 level and suppression of its down-stream pathways.
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Affiliation(s)
- Sarah Soh
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Severance Cardiovascular Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Ji Hae Jun
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jong Wook Song
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Severance Cardiovascular Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Eun-Jung Shin
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Young-Lan Kwak
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Severance Cardiovascular Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jae-Kwang Shim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Severance Cardiovascular Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea; Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
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24
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Pan W, Miao L, Lin Y, Huang X, Ge X, Moosa SL, Liu B, Ren M, Zhou Q, Liang H, Zhang W, Pan L. Regulation mechanism of oxidative stress induced by high glucose through PI3K/Akt/Nrf2 pathway in juvenile blunt snout bream (Megalobrama amblycephala). FISH & SHELLFISH IMMUNOLOGY 2017; 70:66-75. [PMID: 28882793 DOI: 10.1016/j.fsi.2017.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 08/23/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
This study was conducted to investigate the effects of oral administration of a high concentration of glucose on the respiratory burst, antioxidant status, and hepatic gene expression of heme oxygenase-1 (ho1) and PI3K/Akt/Nrf2-related signaling molecules in juvenile blunt snout bream (Megalobrama amblycephala). Blunt snout bream juveniles with an initial body weight of 19.94 ± 0.58 g were orally fed with a high concentration of glucose (3 g/kg body weight). The results indicated that plasma glucose exhibited a biphasic response. Acute and persistent hyperglycemia due to the oral glucose administration significantly reduced (P < 0.05) the white blood cell count, red blood cell count, and hemoglobin content and caused oxidative stress (significantly increased alanine aminotransferase, aspartate transaminase, alkaline phosphatase, and glucose levels) and early apoptosis of hepatocytes in the fish. Hepatic superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase activities increased rapidly (P < 0.05) as protection from oxidative stress and were downregulated (P < 0.05) because of persistent hyperglycemia. Blood respiratory burst was significantly reduced (P < 0.05) because of hyperglycemia and showed a trend that was opposite to that of plasma glucose. Slight upregulation of nrf2 mRNA and antioxidants acts as a compensative protection mechanism, and the downregulated PI3K/Akt pathway blocked this function of Nrf2. In conclusion, the PI3K/Akt pathway and Nrf2 mediated the antioxidative mechanism independently in the blunt snout bream juveniles subjected to the oral administration of a high glucose concentration.
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Affiliation(s)
- Wenjing Pan
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Linghong Miao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Yan Lin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Xin Huang
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Xianping Ge
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China.
| | - Silli Laban Moosa
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Bo Liu
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Mingchun Ren
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Qunlan Zhou
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Hualiang Liang
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Wuxiao Zhang
- Wuxi Fisheries College, Nanjing Agricultural University, 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
| | - Liangkun Pan
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), 9 Shanshui East Road, Wuxi, Jiangsu 214081, PR China
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25
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Chen L, Cai P, Cheng Z, Zhang Z, Fang J. Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β. Exp Ther Med 2017; 14:25-34. [PMID: 28672889 PMCID: PMC5488387 DOI: 10.3892/etm.2017.4457] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 12/15/2016] [Indexed: 02/07/2023] Open
Abstract
Diabetes is an independent risk factor for myocardial ischemia, and many epidemiological data and laboratory studies have revealed that diabetes significantly exacerbated myocardial ischemia/reperfusion injury and ameliorated protective effects. The present study aimed to determine whether pharmacological postconditioning with atorvastatin calcium lessened diabetic myocardial ischemia/reperfusion injury, and investigated the role of glycogen synthase kinase (GSK3β) in this. A total of 72 streptozotocin-induced diabetic rats were randomly divided into six groups, and 24 age-matched male non-diabetic Sprague-Dawley rats were randomly divided into two groups. Rats all received 40 min myocardial ischemia followed by 180 min reperfusion, except sham-operated groups. Compared with the non-diabetic ischemia/reperfusion model group, the diabetic ischemia/reperfusion group had a comparable myocardial infarct size, but a higher level of serum cardiac troponin I (cTnI) and morphological alterations to their myocardial cells. Compared with the diabetic ischemia/reperfusion group, the group that received pharmacological postconditioning with atorvastatin calcium had smaller myocardial infarct sizes, lower levels of cTnI, reduced morphological alterations to myocardial cells, higher levels of p-GSK3β, heat shock factor (HSF)-1 and heat shock protein (HSP)70. The cardioprotective effect conferred by atorvastatin calcium did not attenuate myocardial ischemia/reperfusion injury following application of TDZD-8, which phosphorylates and inactivates GSK3β. Pharmacological postconditioning with atorvastatin calcium may attenuate diabetic heart ischemia/reperfusion injury in the current context. The phosphorylation of GSK3β serves a critical role during the cardioprotection in diabetic rats, and p-GSK3β may accelerate HSP70 production partially by activating HSF-1 during myocardial ischemic/reperfusion injury.
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Affiliation(s)
- Linyan Chen
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China.,Fujian Institute of Coronary Heart Disease, Fuzhou, Fujian 350001, P.R. China
| | - Ping Cai
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China.,Fujian Institute of Coronary Heart Disease, Fuzhou, Fujian 350001, P.R. China
| | - Zhendong Cheng
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China.,Fujian Institute of Coronary Heart Disease, Fuzhou, Fujian 350001, P.R. China
| | - Zaibao Zhang
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China.,Fujian Institute of Coronary Heart Disease, Fuzhou, Fujian 350001, P.R. China
| | - Jun Fang
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China.,Fujian Institute of Coronary Heart Disease, Fuzhou, Fujian 350001, P.R. China
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26
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Stocker P, Cassien M, Vidal N, Thétiot-Laurent S, Pietri S. A fluorescent homogeneous assay for myeloperoxidase measurement in biological samples. A positive correlation between myeloperoxidase-generated HOCl level and oxidative status in STZ-diabetic rats. Talanta 2017; 170:119-127. [PMID: 28501147 DOI: 10.1016/j.talanta.2017.03.102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 03/27/2017] [Accepted: 03/29/2017] [Indexed: 01/23/2023]
Abstract
Myeloperoxidase (MPO) is a key enzyme derived from leukocytes which is associated with the initiation and progression of many inflammatory diseases. Increased levels of MPO may contribute to cellular dysfunction and tissues injury by producing highly reactive oxidants such as hypochlorous acid (HOCl). Myeloperoxidase-generated HOCl is therefore considered as a relevant biomarker of oxidative stress-related damage and its quantitation is of great importance to the study of disease progression. In this context, the current study describes a rapid, sensitive and homogeneous fluorescence-based method for detecting the MPO chlorination activity in biological samples. This assay utilizes 7-hydroxy-2-oxo-2H-chromene-8-carbaldehyde oxime as a selective probe for HOCl detection, and is adapted to 96-well microplates to allow high-throughput quantitation of active MPO. The ability of the method to monitor HOCl release was further investigated in hyperglycemic streptozotocin-treated diabetic rats. The data proved that the present assay has a reliable performance when quantitating the active MPO in the plasma of diabetic animals, a feature of inflammatory disease found concomitant with an elevation of protein carbonyls levels and lipid peroxidation and which was negatively correlated with the ratio of reduced-to-oxidized glutathione.
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Affiliation(s)
- Pierre Stocker
- Aix Marseille Univ, CNRS, ICR, SMBSO, Marseille, France.
| | | | - Nicolas Vidal
- Aix Marseille Univ, CNRS, ICR, SMBSO, Marseille, France
| | | | - Sylvia Pietri
- Aix Marseille Univ, CNRS, ICR, SMBSO, Marseille, France
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27
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Lei Y, Xu Q, Zeng B, Zhang W, Zhen Y, Zhai Y, Cheng F, Mei W, Zheng D, Feng J, Lan J, Chen J. Angiotensin-(1-7) protects cardiomyocytes against high glucose-induced injuries through inhibiting reactive oxygen species-activated leptin-p38 mitogen-activated protein kinase/extracellular signal-regulated protein kinase 1/2 pathways, but not the leptin-c-Jun N-terminal kinase pathway in vitro. J Diabetes Investig 2017; 8:434-445. [PMID: 27896943 PMCID: PMC5497033 DOI: 10.1111/jdi.12603] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 11/04/2016] [Accepted: 11/17/2016] [Indexed: 02/05/2023] Open
Abstract
Aims/Introduction Angiotensin‐(1–7) (Ang‐[1–7]), recognized as a new bioactive peptide in the renin–angiotensin system, shows biological and pharmacological properties in diabetic cardiovascular diseases. The leptin‐induced p38 mitogen‐activated protein kinase (MAPK) pathway has been reported to contribute to high glucose (HG)‐induced injury. In the present study, we showed the mechanism of how Ang‐(1–7) can protect against HG‐stimulated injuries in H9c2 cells. Materials and Methods H9c2 cells were treated with 35 mmol/L glucose (HG) for 24 h to establish a model of HG‐induced damage. Apoptotic cells were observed by Hoechst 33258 staining. Cell viability was analyzed by cell counter kit‐8. The expression of protein was detected by western blot. Reactive oxygen species was tested by 2′,7′‐dichlorodihydrofluorescein diacetate staining. Mitochondrial membrane potential was measured by 5,5′,6,6′‐Tetrachloro‐1,1′,3,3′‐tetraethyl‐imidacarbocyanine iodide staining. Results The present results showed that treating H9c2 cells with HG obviously enhanced the expressions of both the leptin and phosphorylated (p)‐MAPK pathway. However, the overexpression levels of leptin and p‐p38 MAPK/p‐extracellular signal‐regulated protein kinase 1/2 (ERK1/2), but not p‐c‐Jun N‐terminal kinase, were significantly suppressed by treatment of the cells with Ang‐(1–7). Additionally, leptin antagonist also markedly suppressed the overexpressions of p38 and ERK1/2 induced by HG, whereas leptin antagonist had no influence on the overexpression of c‐Jun N‐terminal kinase. More remarkable, Ang‐(1–7), leptin antagonist, SB203580 or SP600125, respectively, significantly inhibited the injuries induced by HG, such as the increased cell viability, decreased apoptotic rate, reduction of ROS production and increased mitochondrial membrane potential. Furthermore, the overexpressions of p38 MAPK, ERK1/2 and leptin were suppressed by N‐actyl‐L‐cystine. Conclusions The present findings show that Ang‐(1–7) protects from HG‐stimulated damage as an inhibitor of the reactive oxygen species–leptin–p38 MAPK/ERK1/2 pathways, but not the leptin–c‐Jun N‐terminal kinase pathway in vitro.
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Affiliation(s)
- Yiyan Lei
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qing Xu
- Department of Cardiovasology and Cardiac Care Unit (CCU), Huangpu Division of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bo Zeng
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Zhang
- Department of Cardiovasology and Cardiac Care Unit (CCU), Huangpu Division of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yulan Zhen
- Department of Oncology, The Third People's Hospital of Dongguan City, Dongguan, China
| | - Yuansheng Zhai
- Department of Cardiovasology and Cardiac Care Unit (CCU), Huangpu Division of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fei Cheng
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, China
| | - Weiyi Mei
- Department of Cardiovasology and Cardiac Care Unit (CCU), Huangpu Division of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dongdan Zheng
- Department of Cardiovasology and Cardiac Care Unit (CCU), Huangpu Division of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jianqiang Feng
- Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jun Lan
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, China
| | - Jingfu Chen
- Department of Cardiovascular Medicine and Dongguan Cardiovascular Institute, The Third People's Hospital of Dongguan City, Dongguan, China
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28
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Rezende PC, Hueb W, Rahmi RM, Scudeler TL, de Azevedo DFC, Garzillo CL, Segre CAW, Ramires JAF, Filho RK. Myocardial injury in diabetic patients with multivessel coronary artery disease after revascularization interventions. Diabetol Metab Syndr 2017; 9:92. [PMID: 29201152 PMCID: PMC5697213 DOI: 10.1186/s13098-017-0292-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Diabetic patients may be more susceptible to myocardial injury after coronary interventions. Thus, the aim of this study was to assess the release of cardiac biomarkers, CK-MB and troponin, and the findings of new late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) in patients with type 2 diabetes mellitus after elective revascularization procedures for multivessel coronary artery disease (CAD). METHODS Patients with multivessel CAD and preserved systolic ventricular function underwent either elective percutaneous coronary intervention (PCI), off-pump or on-pump bypass surgery (CABG). Troponin and CK-MB were systematically collected at baseline, 6, 12, 24, 36, 48 and 72 h after the procedures. CMR with LGE was performed before and after the interventions. Patients were stratified according to diabetes status at study entry. Biomarkers and CMR results were compared between diabetic and nondiabetics patients. Analyses of correlation were also performed among glycemic and glycated hemoglobin (A1c) levels and troponin and CK-MB peak levels. Patients were also stratified into tertiles of fasting glycemia and A1c levels and were compared in terms of periprocedural myocardial infarction (PMI) on CMR. RESULTS Ninety (44.5%) of the 202 patients had diabetes mellitus at study entry. After interventions, median peak troponin was 2.18 (0.47, 5.14) and 2.24 (0.69, 5.42) ng/mL (P = 0.81), and median peak CK-MB was 14.1 (6.8, 31.7) and 14.0 (4.2, 29.8) ng/mL (P = 0.43), in diabetic and nondiabetic patients, respectively. The release of troponin and CK-MB over time was statistically similar in both groups and in the three treatments, besides PCI. New LGE on CMR indicated that new myocardial fibrosis was present in 18.9 and 17.3% (P = 0.91), and myocardial edema in 15.5 and 22.9% (P = 0.39) in diabetic and nondiabetic patients, respectively. The incidence of PMI in the glycemia tertiles was 17.9% versus 19.3% versus 18.7% (P = 0.98), and in the A1c tertiles was 19.1% versus 13.3% versus 22.2% (P = 0.88). CONCLUSIONS In this study, diabetes mellitus did not add risk of myocardial injury after revascularization interventions in patients with multivessel coronary artery disease. Trial Registration Name of Registry: Evaluation of cardiac biomarker elevation after percutaneous coronary intervention or coronary artery bypass graft; URL: http://www.controlled-trials.com.ISRCTN09454308.
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Affiliation(s)
- Paulo Cury Rezende
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Whady Hueb
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Rosa Maria Rahmi
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Thiago Luis Scudeler
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Diogo Freitas Cardoso de Azevedo
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Cibele Larrosa Garzillo
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Carlos Alexandre Wainrober Segre
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Jose Antonio Franchini Ramires
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
| | - Roberto Kalil Filho
- Heart Institute (InCor) of the University of São Paulo, Avenida Dr. Eneas de Carvalho Aguiar, 44, AB sala 114, Cerqueira César, São Paulo, SP CEP 05403-900 Brazil
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Yan L, Cao X, Zeng S, Li Z, Lian Z, Wang J, Lv F, Wang Y, Li Y. Associations of proteins relevant to MAPK signaling pathway (p38MAPK-1,HIF-1 and HO-1) with coronary lesion characteristics and prognosis of peri-menopausal women. Lipids Health Dis 2016; 15:187. [PMID: 27821168 PMCID: PMC5100280 DOI: 10.1186/s12944-016-0356-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 10/27/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The present study was intended to explore whether three proteins within MAPK signaling pathway (i.e. p38MAPK-1, HIF-1 and HO-1) were correlated with peri-menopausal women's coronary lesion features and prognosis. METHODS Altogether 1449 peri-menopausal women were divided into non-coronary artery disease (CAD) group (n = 860) and CAD group (n = 589), including 167 pre-menopausal CAD populations and 422 post-menopausal CAD populations. General information about CAD risk parameters were gathered, including age, family history of CAD or hypertension or diabetes mellitus, bilirubin, cholesterol, triglyceride, high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) and so on. Coronary angiography results were judged, and CAD score was calculated with application of Genisin scoring method. Besides, detection of MAPK-1 levels was implemented with Strept Avidin-Biotin Complex (SABC) method, while HIF-1 and HO-1 expressions in the serum were determined utilizing ELISA detection kit. Correlations among protein expressions, characteristics of coronary lesions and prognosis of CAD populations were finally evaluated. RESULTS Hypertension, hyperlipoidemia, diabetes and smoking history were more prevalent among postmenopausal CAD women than premenopausal CAD women (P < 0.05). Furthermore, postmenopausal women seemed to be significantly associated with multiple (i.e. double and triple) vessel lesions and severe lesion types (type B and C), when compared with premenopausal CAD group (P < 0.05). Similarly, remarkably elevated expressions of p38MAPK-1, HIF-1 and HO-1 were found within postmenopausal CAD populations in comparison to premenopausal ones (P < 0.05). The internal CysC, hs-CRP, TG and LDL-C concentrations all accorded with the following tendency: postmenopausal CAD women > premenopausal CAD women > non-CAD women. Moreover, p38MAPK-1, HIF-1 and HO-1 expressions were up-regulated with increasing number of vessel lesions and severity of coronary lesions among peri-menopausal women. Besides, among both pre-menopausal and post-menopausal CAD groups, positive correlations could be observed between MAPK-1 and TG (r s = 0.271; r s = 0.476), between HIF-1α and LDL-C (r s = 0.077; r s = 0.470), as well as between HO-1 and CysC (r s = 0.492; r s = 0.190) or hs-CRP (r s = 0.569; r s = 0.542) (all P < 0.05). MAPK-1, HIF-1α and HO-1 were also, respectively, positively correlated with CysC (r s = 0.415), hs-CRP (r s = 0.137), and TG (r s = 0.142), regarding post-menopausal CAD women (all P < 0.05). Finally, only SBP and TG were regarded as independent risk factors for CAD prognosis (i.e. high Genisin score) among premenopausal women (OR = 1.02, 95%CI: 1.01-1.18, P = 0.043; OR = 1.82, 95%CI: 1.01-3.33, P = 0.047). CONCLUSIONS Expressions of p38MAPK-1, HIF-1 and HO-1 could serve as predictive roles for coronary lesions among peri-menopausal women.
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Affiliation(s)
- Liqiu Yan
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Xufen Cao
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China.
| | - Saitian Zeng
- Department of Gynecology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, 061001, Hebei Province, China
| | - Zhe Li
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Zheng Lian
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Jiawang Wang
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Fengfeng Lv
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Yunfei Wang
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
| | - Yanshen Li
- Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, No. 16 Xinhua West Road, Cangzhou, Hebei Province, 061001, China
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Parekh J, Roll GR, Wisel S, Rushakoff RJ, Hirose R. Effect of moderately intense perioperative glucose control on renal allograft function: a pilot randomized controlled trial in renal transplantation. Clin Transplant 2016; 30:1242-1249. [PMID: 27423055 DOI: 10.1111/ctr.12811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2016] [Indexed: 12/25/2022]
Abstract
Recipient diabetes accounts for ~34% of end-stage renal disease in patients awaiting renal transplantation and has been linked to poor graft function. We conducted a single-center, open-label, randomized controlled trial to determine whether moderately intense glucose control during allograft reperfusion would reduce the incidence of poor graft function. Adult diabetics undergoing deceased donor renal transplant were randomized to moderately intense glucose control (n=30) or standard control (n=30). The primary outcome was poor graft function (dialysis within seven days of transplant or failure of serum creatinine to fall by 10% for three consecutive days). Recipients with moderately intense glucose control had less poor graft function in the intention-to-treat (43.3% vs 73.3%, P=.02) and per-protocol analysis (43.2% vs 81%, P<.01). Recipients with moderately intense control also had higher glomerular filtration rate (GFR) at 30 days after transplant in the per-protocol and intention-to-treat analyses. There were no episodes of severe hypoglycemia in either group and no differences in mortality, seizures, stroke, graft loss, or biopsy-proven rejection. Moderately intense glucose control at the time of allograft reperfusion reduces the incidence of poor graft function in diabetic renal transplant recipients and improves glomerular filtration rate at 30 days.
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Affiliation(s)
- Justin Parekh
- Division of Transplantation, Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA.
| | - Garrett R Roll
- Division of Transplantation, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Steven Wisel
- Division of Transplantation, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Robert J Rushakoff
- Department of Endocrinology, University of California San Francisco, San Francisco, CA, USA
| | - Ryutaro Hirose
- Division of Transplantation, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
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Wernly B, Lichtenauer M, Franz M, Kabisch B, Muessig J, Masyuk M, Kelm M, Hoppe UC, Jung C. Differential Impact of Hyperglycemia in Critically Ill Patients: Significance in Acute Myocardial Infarction but Not in Sepsis? Int J Mol Sci 2016; 17:ijms17091586. [PMID: 27657056 PMCID: PMC5037851 DOI: 10.3390/ijms17091586] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/04/2016] [Accepted: 09/12/2016] [Indexed: 01/08/2023] Open
Abstract
Hyperglycemia is a common condition in critically ill patients admitted to an intensive care unit (ICU). These patients represent an inhomogeneous collective and hyperglycemia might need different evaluation depending on the underlying disorder. To elucidate this, we investigated and compared associations of severe hyperglycemia (>200 mg/dL) and mortality in patients admitted to an ICU for acute myocardial infarction (AMI) or sepsis as the two most frequent admission diagnoses. From 2006 to 2009, 2551 patients 69 (58-77) years; 1544 male; 337 patients suffering from type 2 diabetes (T2DM)) who were admitted because of either AMI or sepsis to an ICU in a tertiary care hospital were investigated retrospectively. Follow-up of patients was performed between May 2013 and November 2013. In a Cox regression analysis, maximum glucose concentration at the day of admission was associated with mortality in the overall cohort (HR = 1.006, 95% CI: 1.004-1.009; p < 0.001) and in patients suffering from myocardial infarction (HR = 1.101, 95% CI: 1.075-1.127; p < 0.001) but only in trend in patients admitted to an ICU for sepsis (HR = 1.030, 95% CI: 0.998-1.062; p = 0.07). Severe hyperglycemia was associated with adverse intra-ICU mortality in the overall cohort (23% vs. 13%; p < 0.001) and patients admitted for AMI (15% vs. 5%; p < 0.001) but not for septic patients (39% vs. 40%; p = 0.48). A medical history of type 2 diabetes (n = 337; 13%) was not associated with increased intra-ICU mortality (15% vs. 15%; p = 0.93) but in patients with severe hyperglycemia and/or a known medical history of type 2 diabetes considered in combination, an increased mortality in AMI patients (intra-ICU 5% vs. 13%; p < 0.001) but not in septic patients (intra-ICU 38% vs. 41%; p = 0.53) could be evidenced. The presence of hyperglycemia in critically ill patients has differential impact within the different etiological groups. Hyperglycemia in AMI patients might identify a sicker patient collective suffering from pre-diabetes or undiagnosed diabetes with its' known adverse consequences, especially in the long-term. Hyperglycemia in sepsis might be considered as adaptive survival mechanism to hypo-perfusion and consecutive lack of glucose in peripheral cells. AMI patients with hyperglycemic derailment during an ICU-stay should be closely followed-up and extensively screened for diabetes to improve patients' outcome.
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Affiliation(s)
- Bernhard Wernly
- Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg A-5020, Austria.
| | - Michael Lichtenauer
- Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg A-5020, Austria.
| | - Marcus Franz
- Clinic of Internal Medicine I, Department of Cardiology, Jena University Hospital, Thuringia 07743, Germany.
| | - Bjoern Kabisch
- Clinic of Internal Medicine I, Department of Cardiology, Jena University Hospital, Thuringia 07743, Germany.
| | - Johanna Muessig
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Duesseldorf, Düsseldorf 40225, Germany.
| | - Maryna Masyuk
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Duesseldorf, Düsseldorf 40225, Germany.
| | - Malte Kelm
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Duesseldorf, Düsseldorf 40225, Germany.
| | - Uta C Hoppe
- Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg A-5020, Austria.
| | - Christian Jung
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Duesseldorf, Düsseldorf 40225, Germany.
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You Q, Wu Z, Wu B, Liu C, Huang R, Yang L, Guo R, Wu K, Chen J. Naringin protects cardiomyocytes against hyperglycemia-induced injuries in vitro and in vivo. J Endocrinol 2016; 230:197-214. [PMID: 27270899 DOI: 10.1530/joe-16-0004] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 06/03/2016] [Indexed: 12/21/2022]
Abstract
We previously reported that naringin (NRG) protects cardiomyocytes against high glucose (HG)-induced injuries by inhibiting the MAPK pathway. The aim of this study was to test the hypothesis that NRG prevents cardiomyocytes from hyperglycemia-induced insult through the inhibition of the nuclear factor kappa B (NF-κB) pathway and the upregulation of ATP-sensitive K(+) (KATP) channels. Our results showed that exposure of cardiomyocytes to HG for 24h markedly induced injuries, as evidenced by a decrease in cell viability and oxidative stress, and increases in apoptotic cells as well as the dissipation of mitochondrial membrane potential (MMP). These injuries were markedly attenuated by the pretreatment of cells with either NRG or pyrrolidine dithiocarbamate (PDTC) before exposure to HG. Furthermore, in streptozotocin (STZ)-induced diabetic rats and in HG-induced cardiomyocytes, the expression levels of caspase-3, bax and phosphorylated (p)-NF-κB p65 were increased. The increased protein levels were ameliorated by pretreatment with both NRG and PDTC. However, the expression levels of bcl-2 and KATP and superoxide dismutase (SOD) activity were decreased by hyperglycemia; the expression level of Nox4 and the ADP/ATP ratio were increased by hyperglycemia. These hyperglycemia-induced indexes were inhibited by the pretreatment of cardiomyocytes with NRG or PDTC. In addition, in STZ-induced diabetic rats, we also observed that NRG or PDTC contributed to protecting mitochondrial injury and myocardium damage. This study demonstrated that NRG protects cardiomyocytes against hyperglycemia-induced injury by upregulating KATP channels in vitro and inhibiting the NF-κB pathway in vivo and in vitro.
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Affiliation(s)
- Qiong You
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Zijun Wu
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Bin Wu
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Chang Liu
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Ruina Huang
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Li Yang
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Runmin Guo
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Keng Wu
- Department of CardiovasologyThe Affiliated Hospital, Guangdong Medical College, Guangdong, Zhanjiang, China
| | - Jingfu Chen
- Department of CardiologyThe Third People's Hospital of Dongguan City, Cardiovascular Institute of Dongguan City, Dongguan, Guangdong, China
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Sedlic F, Muravyeva MY, Sepac A, Sedlic M, Williams AM, Yang M, Bai X, Bosnjak ZJ. Targeted Modification of Mitochondrial ROS Production Converts High Glucose-Induced Cytotoxicity to Cytoprotection: Effects on Anesthetic Preconditioning. J Cell Physiol 2016; 232:216-24. [PMID: 27138089 DOI: 10.1002/jcp.25413] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 04/28/2016] [Indexed: 11/12/2022]
Abstract
Contradictory reports on the effects of diabetes and hyperglycemia on myocardial infarction range from cytotoxicity to cytoprotection. The study was designed to investigate acute effects of high glucose-driven changes in mitochondrial metabolism and osmolarity on adaptive mechanisms and resistance to oxidative stress of isolated rat cardiomyocytes. We examined the effects of high glucose on several parameters of mitochondrial bioenergetics, including changes in oxygen consumption, mitochondrial membrane potential, and NAD(P)H fluorometry. Effects of high glucose on the endogenous cytoprotective mechanisms elicited by anesthetic preconditioning (APC) and the mediators of cell injury were also tested. These experiments included real-time measurements of reactive oxygen species (ROS) production and mitochondrial permeability transition pore (mPTP) opening in single cells by laser scanning fluorescence confocal microscopy, and cell survival assay. High glucose rapidly enhanced mitochondrial energy metabolism, observed by increase in NAD(P)H fluorescence intensity, oxygen consumption, and mitochondrial membrane potential. This substantially elevated production of ROS, accelerated opening of the mPTP, and decreased survival of cells exposed to oxidative stress. Abrogation of high glucose-induced mitochondrial hyperpolarization with 2,4 dinitrophenol (DNP) significantly, but not completely, attenuated ROS production to a level similar to hyperosmotic mannitol control. DNP treatment reversed high glucose-induced cytotoxicity to cytoprotection. Hyperosmotic mannitol treatment also induced cytoprotection. High glucose abrogated APC-induced mitochondrial depolarization, delay in mPTP opening and cytoprotection. In conclusion, high glucose-induced mitochondrial hyperpolarization abolishes APC and augments cell injury. Attenuation of high glucose-induced ROS production by eliminating mitochondrial hyperpolarization protects cardiomyocytes. J. Cell. Physiol. 232: 216-224, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Filip Sedlic
- Department of Pathophysiology, University of Zagreb, School of Medicine, Croatia.
| | - Maria Y Muravyeva
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ana Sepac
- Department of Pathology, University of Zagreb, School of Medicine, Croatia
| | - Marija Sedlic
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Anna Marie Williams
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Meiying Yang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Xiaowen Bai
- Departments of Anesthesiology and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Zeljko J Bosnjak
- Departments of Anesthesiology and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
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Li J, Ren Y, Shi E, Tan Z, Xiong J, Yan L, Jiang X. Inhibition of the Let-7 Family MicroRNAs Induces Cardioprotection Against Ischemia-Reperfusion Injury in Diabetic Rats. Ann Thorac Surg 2016; 102:829-835. [PMID: 27217295 DOI: 10.1016/j.athoracsur.2016.02.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 12/27/2015] [Accepted: 02/08/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND The expression of the let-7 family microRNAs in the myocardium of streptozotocin-induced diabetic rats was measured, and the cardioprotection of inhibition of let-7 microRNAs against ischemia-reperfusion injury was investigated. METHODS The diabetic rats and nondiabetic rats were subjected to 30 minutes of coronary artery occlusion followed by 120 minutes of reperfusion. The infarct size was determined by triphenyltetrazolium chloride staining. The expression of let-7 was measured by quantitative real-time polymerase chain reaction, and expressions of insulin receptor (InsR), insulin-like growth factor-1 receptor (IGF-1R), glucose transporter type 4 (GLUT4), and the phosphorylation states of Akt and the mammalian target of rapamycin (mTOR) were analyzed using Western blot. Inhibition of let-7 was performed by local transfection of lentivirus gene transfer vectors containing let-7 antimiR. RESULTS Compared with nondiabetic rats, the expression of let-7 was enhanced in the myocardium of diabetic rats (p = 0.029), whereas expressions of InsR, IGF-1R, and GLUT4 were decreased after ischemia-reperfusion (p < 0.01). Local transfection of the let-7 antimiR markedly inhibited the expression of let-7 (p = 0.038) and improved expressions of InsR, IGF-1R, and GLUT4 in the myocardium of diabetic rats (p < 0.01). The infarct size of diabetic rats was much higher than that of nondiabetic rats (p < 0.0001). Transfection of the let-7 antimiR significantly reduced the infarct size of diabetic rats (p < 0.0001), and such an antiinfarct effect was abolished completely by pretreatment of Akt inhibitor LY294002 or mTOR inhibitor rapamycin. CONCLUSIONS Inhibition of the let-7 family microRNAs improves glucose uptake and insulin resistance in the diabetic myocardium and induces cardioprotection against ischemia-reperfusion injury through Akt and mTOR pathways.
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Affiliation(s)
- Juchen Li
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, China; Department of Anesthesiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Yixing Ren
- Department of Cardiac Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Enyi Shi
- Department of Cardiac Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Zhibin Tan
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Jian Xiong
- Department of Cardiac Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Lihui Yan
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Xiaojing Jiang
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, China.
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Joubert M, Hardouin J, Legallois D, Blanchart K, Elie N, Nowoczyn M, Croisille P, Coulbault L, Bor-Angelier C, Allouche S, Manrique A. Effects of glycaemic variability on cardiac remodelling after reperfused myocardial infarction: Evaluation of streptozotocin-induced diabetic Wistar rats using cardiac magnetic resonance imaging. DIABETES & METABOLISM 2016; 42:342-350. [PMID: 26971835 DOI: 10.1016/j.diabet.2016.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/27/2016] [Accepted: 02/15/2016] [Indexed: 10/22/2022]
Abstract
AIMS In addition to hyperglycaemia, glycaemic variability seems to be associated with poor outcomes after acute myocardial infarction. This study explored the impact of glycaemic variability in diabetic Wistar rats subjected to myocardial ischaemia/reperfusion. METHODS Animals with streptozotocin-induced diabetes received insulin either to maintain stable hyperglycaemia (Dh group) or to generate glycaemic variability (Dv). After experimental myocardial ischaemia/reperfusion was surgically induced, 7T cardiac magnetic resonance imaging (CMR) was performed at weeks 1 (w1) and 3 (w3). RESULTS Twenty-six rats were randomized [sham group (S): n=5; control group (C): n=7; Dh group: n=6; and Dv group: n=8]. The mean amplitude of glucose reflecting glycaemic variability was higher in the Dv than in the Dh group (9.1±2.7mmol/L vs 5.9±1.9mmol/L; P<0.05). CMR assessment at w3 revealed ventricular enlargement in both Dh and Dv groups compared with the C and S groups (end-diastolic volume: 1.60±0.22 and 1.36±0.30mL/kg compared with 1.11±0.13 and 0.87±0.11mL/kg, respectively; P<0.05). Circumferential strain was altered between w1 and w3 in the remote area only in the Dv group, resulting in a lower value in this group than in the S, C and Dh groups (-0.11±0.01 vs -0.17±0.05, -0.15±0.03 and -0.16±0.03, respectively; P<0.05). In addition, at w3, oedema was also higher in the remote area in the Dv than in the C group (18.3±4.9ms vs 14.5±1.7ms, respectively; P<0.05). CONCLUSION In the context of experimental myocardial ischaemia/reperfusion, our results suggest that glycaemic variability might have a potentially deleterious impact on myocardial outcomes beyond the classical glucose metrics.
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Affiliation(s)
- M Joubert
- Diabetes Care Unit, Caen University Hospital, Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - J Hardouin
- Diabetes Care Unit, Caen University Hospital, Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - D Legallois
- Cardiology Unit, Caen University Hospital, 14033 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - K Blanchart
- Cardiology Unit, Caen University Hospital, 14033 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - N Elie
- CMABIO-HIQ Facility, SF4206 ICORE, IBFA, University of Caen, 14000 Caen, France.
| | - M Nowoczyn
- Biochemistry Unit, Caen University Hospital, 14000 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - P Croisille
- Radiology Department, Saint-Etienne University Hospital, 42000 Saint-Etienne, France; CREATIS CNRS UMR5220 Inserm U1044, Lyon University, 69000 Lyon, France.
| | - L Coulbault
- Biochemistry Unit, Caen University Hospital, 14000 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - C Bor-Angelier
- Pathology Department, F.-Baclesse Cancer Center, 14000 Caen, France.
| | - S Allouche
- Biochemistry Unit, Caen University Hospital, 14000 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
| | - A Manrique
- Nuclear Medicine Department, Caen University Hospital, 14033 Caen, France; EA4650 Normandie université, GIP Cyceron, 14000 Caen, France.
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36
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Korkmaz-Icöz S, Vater A, Li S, Lehner A, Radovits T, Hegedűs P, Ruppert M, Brlecic P, Zorn M, Karck M, Szabó G. Mild type 2 diabetes mellitus improves remote endothelial dysfunction after acute myocardial infarction. J Diabetes Complications 2015. [PMID: 26219999 DOI: 10.1016/j.jdiacomp.2015.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
AIMS Myocardial infarction (MI) is a common cause of mortality in patients with diabetes mellitus (DM) and vascular dysfunction is a major component of diabetic cardiomyopathy. We investigated the systemic influence of acute MI on the diabetes-induced pathogenic changes in the rat aorta. METHODS Nondiabetic Wistar (W) and type-2 diabetic Goto-Kakizaki (GK) rats underwent 45min of left anterior descending coronary artery occlusion followed by 24h of reperfusion. Isometric force was measured using organ bath. RESULTS Plasma glucose-levels were significantly higher in diabetic rats (GK+sham: 13±2mM; GK+MI: 19±2mM) compared to nondiabetic rats (W+sham: 8±0mM; W+MI: 8±1mM). Acetylcholine-induced relaxation was significantly weaker in rings from W+MI and GK+MI rats compared to corresponding sham-operated animals. Myocardial reperfusion injury was smaller in GK+MI than W+MI rats, and the concentration-response curves to acetylcholine were significantly enhanced in rings from GK+MI than W+MI rats. Nevertheless, the relaxation response to acetylcholine was similar in W+sham and GK+sham. Densitometric analysis of bands for endothelial nitric oxide synthase showed a significant decrease in W+MI rats compared to W+sham and GK+sham animals. Aortas from both GK+sham and GK+MI rats showed impaired contractile responses to phenylephrine in comparison with the nondiabetics. CONCLUSIONS For the first time we showed that short-term and mild type-2 DM improved remote endothelial dysfunction after reperfused acute MI.
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MESH Headings
- Animals
- Aorta
- Blood Glucose/analysis
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/physiopathology
- Diabetic Angiopathies/complications
- Diabetic Angiopathies/physiopathology
- Diabetic Cardiomyopathies/complications
- Diabetic Cardiomyopathies/physiopathology
- Disease Resistance
- Drug Resistance
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Endothelium, Vascular/physiopathology
- Male
- Myocardial Infarction/complications
- Myocardial Infarction/physiopathology
- Myocardial Reperfusion Injury/etiology
- Myocardial Reperfusion Injury/prevention & control
- Nitric Oxide Synthase Type III/metabolism
- Phosphorylation
- Protein Processing, Post-Translational
- Rats
- Rats, Inbred Strains
- Rats, Wistar
- Vasoconstriction/drug effects
- Vasoconstrictor Agents/pharmacology
- Vasodilation/drug effects
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Sevil Korkmaz-Icöz
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | - Adrian Vater
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | - Shiliang Li
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | - Alice Lehner
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | | | - Péter Hegedűs
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany; Heart Center, Semmelweis University, Budapest, Hungary.
| | - Mihály Ruppert
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany; Heart Center, Semmelweis University, Budapest, Hungary.
| | - Paige Brlecic
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | - Markus Zorn
- Department of Internal Medicine I, University of Heidelberg, Heidelberg, Germany.
| | - Matthias Karck
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
| | - Gábor Szabó
- Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
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37
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Yu L, Liang H, Dong X, Zhao G, Jin Z, Zhai M, Yang Y, Chen W, Liu J, Yi W, Yang J, Yi D, Duan W, Yu S. Reduced silent information regulator 1 signaling exacerbates myocardial ischemia-reperfusion injury in type 2 diabetic rats and the protective effect of melatonin. J Pineal Res 2015; 59:376-90. [PMID: 26327197 DOI: 10.1111/jpi.12269] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 08/14/2015] [Indexed: 01/06/2023]
Abstract
Diabetes mellitus (DM) increases myocardial oxidative stress and endoplasmic reticulum (ER) stress. Melatonin confers cardioprotective effect by suppressing oxidative damage. However, the effect and mechanism of melatonin on myocardial ischemia-reperfusion (MI/R) injury in type 2 diabetic state are still unknown. In this study, we developed high-fat diet-fed streptozotocin (HFD-STZ) rat, a well-known type 2 diabetic model, to evaluate the effect of melatonin on MI/R injury with a focus on silent information regulator 1 (SIRT1) signaling, oxidative stress, and PERK/eIF2α/ATF4-mediated ER stress. HFD-STZ treated rats were exposed to melatonin treatment in the presence or the absence of sirtinol (a SIRT1 inhibitor) and subjected to MI/R surgery. Compared with nondiabetic animals, type 2 diabetic rats exhibited significantly decreased myocardial SIRT1 signaling, increased apoptosis, enhanced oxidative stress, and ER stress. Additionally, further reduced SIRT1 signaling, aggravated oxidative damage, and ER stress were found in diabetic animals subjected to MI/R surgery. Melatonin markedly reduced MI/R injury by improving cardiac functional recovery and decreasing myocardial apoptosis in type 2 diabetic animals. Melatonin treatment up-regulated SIRT1 expression, reduced oxidative damage, and suppressed PERK/eIF2α/ATF4 signaling. However, these effects were all attenuated by SIRT1 inhibition. Melatonin also protected high glucose/high fat cultured H9C2 cardiomyocytes against simulated ischemia-reperfusion injury-induced ER stress by activating SIRT1 signaling while SIRT1 siRNA blunted this action. Taken together, our study demonstrates that reduced cardiac SIRT1 signaling in type 2 diabetic state aggravates MI/R injury. Melatonin ameliorates reperfusion-induced oxidative stress and ER stress via activation of SIRT1 signaling, thus reducing MI/R damage and improving cardiac function.
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Affiliation(s)
- Liming Yu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hongliang Liang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaochao Dong
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Guolong Zhao
- Department of Cardiovascular Surgery, General Hospital, Ningxia Medical University, Yinchuan, China
| | - Zhenxiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Mengen Zhai
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yang Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an, China
| | - Wensheng Chen
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jian Yang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Dinghua Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Weixun Duan
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Shiqiang Yu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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38
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Targeting AGEs Signaling Ameliorates Central Nervous System Diabetic Complications in Rats. Adv Pharmacol Sci 2015; 2015:346259. [PMID: 26491434 PMCID: PMC4603311 DOI: 10.1155/2015/346259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/02/2015] [Accepted: 09/14/2015] [Indexed: 02/07/2023] Open
Abstract
Diabetes is a chronic endocrine disorder associated with several complications as hypertension, advanced brain aging, and cognitive decline. Accumulation of advanced glycation end products (AGEs) is an important mechanism that mediates diabetic complications. Upon binding to their receptor (RAGE), AGEs mediate oxidative stress and/or cause cross-linking with proteins in blood vessels and brain tissues. The current investigation was designed to investigate the effect of agents that decrease AGEs signaling, perindopril which increases soluble RAGE (sRAGE) and alagebrium which cleaves AGEs cross-links, compared to the standard antidiabetic drug, gliclazide, on the vascular and central nervous system (CNS) complications in STZ-induced (50 mg/kg, IP) diabetes in rats. Perindopril ameliorated the elevation in blood pressure seen in diabetic animals. In addition, both perindopril and alagebrium significantly inhibited memory decline (performance in the Y-maze), neuronal degeneration (Fluoro-Jade staining), AGEs accumulation in serum and brain, and brain oxidative stress (level of reduced glutathione and activities of catalase and malondialdehyde). These results suggest that blockade of AGEs signaling after diabetes induction in rats is effective in reducing diabetic CNS complications.
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39
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Xiao Q, Yang YA, Zhao XY, He LS, Qin Y, He YH, Zhang GP, Luo JD. Oxidative stress contributes to the impaired sonic hedgehog pathway in type 1 diabetic mice with myocardial infarction. Exp Ther Med 2015; 10:1750-1758. [PMID: 26640546 PMCID: PMC4665878 DOI: 10.3892/etm.2015.2766] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 08/08/2015] [Indexed: 12/19/2022] Open
Abstract
Our previous study demonstrated that an impaired sonic hedgehog (Shh) pathway contributed to cardiac dysfunction in type 1 diabetic mice with myocardial infarction (MI). The present study aimed to test the hypothesis that oxidative stress may contribute to the impaired Shh pathway and cardiac dysfunction in type 1 diabetic mice with MI. Streptozotocin-induced type 1 diabetic mice (C57/Bl6, male) and rat neonatal cardiomyocytes were used in the present study. Mice were randomly assigned to undergo ligation of the coronary artery or pseudosurgery. A potent antioxidant Tempol was administered in vivo and in vitro. Cardiac function was assessed by echocardiography, capillary density by immunohistochemisty, percentage of myocardial infarct using Massons trichrome staining, reactive oxygen species detection using dihydroethidium dye or 2,7-dichlorofluorescein diacetate probe and protein expression levels of the Shh pathway by western blot analysis. The antioxidant Tempol was shown to significantly increase myocardial protein expression levels of Shh and patched-1 (Ptc1) at 7–18 weeks and improved cardiac function at 18 weeks in type 1 diabetic mice, as compared with mice receiving no drug treatment. Furthermore, myocardial protein expression levels of Shh and Ptc1 were significantly upregulated on day 7 after MI, and capillary density was enhanced. In addition, the percentage area of myocardial infarct was reduced, and the cardiac dysfunction and survival rate were improved on day 21 in diabetic mice treated with Tempol. In vitro, treatment of rat neonatal cardiomyocytes with a mixture of xanthine oxidase and xanthine decreased protein expression levels of Shh and Ptc1 in a concentration-dependent manner, and Tempol attenuated this effect. These results indicate that oxidative stress may contribute to an impaired Shh pathway in type 1 diabetic mice, leading to diminished myocardial healing and cardiac dysfunction. Antioxidative strategies aimed at restoring the endogenous Shh pathway may offer a useful means for improving diabetic cardiac function.
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Affiliation(s)
- Qing Xiao
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China ; Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Y A Yang
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Xiao-Ya Zhao
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Li-Shan He
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Yuan Qin
- Guangzhou Research Institute of Snake Venom, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Yan-Hua He
- Guangzhou Research Institute of Snake Venom, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Gui-Ping Zhang
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China
| | - Jian-Dong Luo
- Department of Pharmacology, Guangzhou Medical University, Guangzhou, Guangdong 510182, P.R. China ; Guangzhou Institute of Cardiovascular Disease, Guangzhou Key Laboratory of Cardiovascular Disease, Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
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40
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Li BZ, Guo B, Zhang HY, Liu J, Tao SS, Pan HF, Ye DQ. Therapeutic potential of HO-1 in autoimmune diseases. Inflammation 2015; 37:1779-88. [PMID: 24818708 DOI: 10.1007/s10753-014-9908-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Heme oxygenase-1 (HO-1), the inducible isoform of heme oxygenase (HO), has raised a lot of concerns in recent years due to its multiple functions. HO-1 was found to be a pivotal cytoprotective, antioxidant, anti-apoptotic, immunosuppressive, as well as anti-inflammatory molecule. Recent studies have clarified its significant functions in many diseases with substantial findings. In autoimmune diseases, HO-1 may have promising therapeutic potential. Here, we briefly reviewed recent advances in this field, aiming at hopefully exploring the potential therapeutic roles of HO-1, and design HO-1-based strategies for the treatment of autoimmune diseases.
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Affiliation(s)
- Bao-Zhu Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China
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41
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Badalzadeh R, Mokhtari B, Yavari R. Contribution of apoptosis in myocardial reperfusion injury and loss of cardioprotection in diabetes mellitus. J Physiol Sci 2015; 65:201-15. [PMID: 25726180 PMCID: PMC10717803 DOI: 10.1007/s12576-015-0365-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 02/11/2015] [Indexed: 12/21/2022]
Abstract
Ischemic heart disease is one of the major causes of death worldwide. Ischemia is a condition in which blood flow of the myocardium declines, leading to cardiomyocyte death. However, reperfusion of ischemic regions decreases the rate of mortality, but it can also cause later complications. In a clinical setting, ischemic heart disease is always coincident with other co-morbidities such as diabetes. The risk of heart disease increases 2-3 times in diabetic patients. Apoptosis is considered to be one of the main pathophysiological mechanisms of myocardial ischemia-reperfusion injury. Diabetes can disrupt the anti-apoptotic intracellular signaling cascades involved in myocardial protection. Therefore, targeting these changes may be an effective cardioprotective approach in the diabetic myocardium against ischemia-reperfusion injury. In this article, we review the interaction of diabetes with the pathophysiology of myocardial ischemia-reperfusion injury, focusing on the contribution of apoptosis in this context, and then discuss the alterations of pro-apoptotic or anti-apoptotic pathways probably responsible for the loss of cardioprotection in diabetes.
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Affiliation(s)
- Reza Badalzadeh
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behnaz Mokhtari
- Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raana Yavari
- Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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42
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Müllebner A, Moldzio R, Redl H, Kozlov AV, Duvigneau JC. Heme Degradation by Heme Oxygenase Protects Mitochondria but Induces ER Stress via Formed Bilirubin. Biomolecules 2015; 5:679-701. [PMID: 25942605 PMCID: PMC4496691 DOI: 10.3390/biom5020679] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/08/2015] [Accepted: 04/16/2015] [Indexed: 01/16/2023] Open
Abstract
Heme oxygenase (HO), in conjunction with biliverdin reductase, degrades heme to carbon monoxide, ferrous iron and bilirubin (BR); the latter is a potent antioxidant. The induced isoform HO-1 has evoked intense research interest, especially because it manifests anti-inflammatory and anti-apoptotic effects relieving acute cell stress. The mechanisms by which HO mediates the described effects are not completely clear. However, the degradation of heme, a strong pro-oxidant, and the generation of BR are considered to play key roles. The aim of this study was to determine the effects of BR on vital functions of hepatocytes focusing on mitochondria and the endoplasmic reticulum (ER). The affinity of BR to proteins is a known challenge for its exact quantification. We consider two major consequences of this affinity, namely possible analytical errors in the determination of HO activity, and biological effects of BR due to direct interaction with protein function. In order to overcome analytical bias we applied a polynomial correction accounting for the loss of BR due to its adsorption to proteins. To identify potential intracellular targets of BR we used an in vitro approach involving hepatocytes and isolated mitochondria. After verification that the hepatocytes possess HO activity at a similar level as liver tissue by using our improved post-extraction spectroscopic assay, we elucidated the effects of increased HO activity and the formed BR on mitochondrial function and the ER stress response. Our data show that BR may compromise cellular metabolism and proliferation via induction of ER stress. ER and mitochondria respond differently to elevated levels of BR and HO-activity. Mitochondria are susceptible to hemin, but active HO protects them against hemin-induced toxicity. BR at slightly elevated levels induces a stress response at the ER, resulting in a decreased proliferative and metabolic activity of hepatocytes. However, the proteins that are targeted by BR still have to be identified.
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Affiliation(s)
- Andrea Müllebner
- Institute for Medical Biochemistry, Veterinary University Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
| | - Rudolf Moldzio
- Institute for Medical Biochemistry, Veterinary University Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria.
| | - Andrey V Kozlov
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria.
| | - J Catharina Duvigneau
- Institute for Medical Biochemistry, Veterinary University Vienna, Veterinaerplatz 1, 1210 Vienna, Austria.
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43
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Nekooeian AA, Khalili A, Khosravi MB. Oleuropein offers cardioprotection in rats with simultaneous type 2 diabetes and renal hypertension. Indian J Pharmacol 2015; 46:398-403. [PMID: 25097277 PMCID: PMC4118532 DOI: 10.4103/0253-7613.135951] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/09/2014] [Accepted: 06/10/2014] [Indexed: 01/22/2023] Open
Abstract
Objectives: The study aimed at examining the role of oxidative stress in cadioprotective effects of oleuropein in a rat model of simultaneous type 2 diabetes and renal hypertension. Materials and Methods: Five groups of male Sprague-Dawley rats including a control group, a diabetic-hypertensive group receiving vehicle, and three diabetic-hypertensive groups receiving oleuropein at 20, 40, or 60 mg/kg/day were used. Blood pressure and glucose, serum malondialdehyde, and erythrocyte superoxide dismutase were measured, and animal's hearts with ischemia/reperfusion injuries were used using Langendorff technique. Results: Blood pressure, blood glucose, serum malondialdehyde, infarct size, coronary effluent creatine kinase-MB, and coronary resistance of diabetic-hypertensive group were significantly higher than those of the control group, while those of the oleuropein-receiving groups were significantly lower than those of the diabetic hypertensive group receiving the vehicle. Erythrocyte superoxide dismutase, left ventricular developed pressure, and rate of rise and rate of decrease of ventricular pressure of diabetic-hypertensive group were significantly lower than those of the control group. These parameters as well as heart rate of oleuropein-receiving groups were significantly higher than those of the diabetic-hypertensive group. Conclusion: The findings indicate that oleuropein offered cardioprotection, which might be partly mediated by its antioxidant properties.
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Affiliation(s)
- Ali Akbar Nekooeian
- Department of Pharmacology, Cardiovascular Pharmacology Research Lab, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Azadeh Khalili
- Department of Pharmacology, Cardiovascular Pharmacology Research Lab, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Bagher Khosravi
- Department of Anesthesiology, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
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44
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Korkmaz-Icöz S, Lehner A, Li S, Vater A, Radovits T, Hegedűs P, Ruppert M, Brlecic P, Zorn M, Karck M, Szabó G. Mild Type 2 Diabetes Mellitus Reduces the Susceptibility of the Heart to Ischemia/Reperfusion Injury: Identification of Underlying Gene Expression Changes. J Diabetes Res 2015; 2015:396414. [PMID: 26229969 PMCID: PMC4502305 DOI: 10.1155/2015/396414] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 05/18/2015] [Accepted: 05/26/2015] [Indexed: 01/11/2023] Open
Abstract
Despite clinical studies indicating that diabetic hearts are more sensitive to ischemia/reperfusion injury, experimental data is contradictory. Although mild diabetes prior to ischemia/reperfusion may induce a myocardial adaptation, further research is still needed. Nondiabetic Wistar (W) and type 2 diabetic Goto-Kakizaki (GK) rats (16-week-old) underwent 45 min occlusion of the left anterior descending coronary artery and 24 h reperfusion. The plasma glucose level was significantly higher in diabetic rats compared to the nondiabetics. Diabetes mellitus was associated with ventricular hypertrophy and increased interstitial fibrosis. Inducing myocardial infarction increased the glucose levels in diabetic compared to nondiabetic rats. Furthermore, the infarct size was smaller in GK rats than in the control group. Systolic and diastolic functions were impaired in W + MI and did not reach statistical significance in GK + MI animals compared to the corresponding controls. Among the 125 genes surveyed, 35 genes showed a significant change in expression in GK + MI compared to W + MI rats. Short-term diabetes promotes compensatory mechanisms that may provide cardioprotection against ischemia/reperfusion injury, at least in part, by increased antioxidants and the upregulation of the prosurvival PI3K/Akt pathway, by the downregulation of apoptotic genes, proinflammatory cytokine TNF-α, profibrogenic TGF-β, and hypertrophic marker α-actin-1.
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Affiliation(s)
- Sevil Korkmaz-Icöz
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
- *Sevil Korkmaz-Icöz:
| | - Alice Lehner
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Shiliang Li
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Adrian Vater
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Tamás Radovits
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
| | - Péter Hegedűs
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
| | - Mihály Ruppert
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Paige Brlecic
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Markus Zorn
- Department of Internal Medicine I, University of Heidelberg, 69120 Heidelberg, Germany
| | - Matthias Karck
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Gábor Szabó
- Department of Cardiac Surgery, University of Heidelberg, 69120 Heidelberg, Germany
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45
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Jun JH, Jun NH, Shim JK, Shin EJ, Kwak YL. Erythropoietin protects myocardium against ischemia-reperfusion injury under moderate hyperglycemia. Eur J Pharmacol 2014; 745:1-9. [PMID: 25446919 DOI: 10.1016/j.ejphar.2014.09.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/23/2014] [Accepted: 09/23/2014] [Indexed: 01/26/2023]
Abstract
Erythropoietin (EPO), an essential hormone for erythropoiesis, provides protection against myocardial ischemia/reperfusion (I/R) injury. Hyperglycemia during acute myocardial infarction aggravates organ damage and attenuates the efficacies of various protective measures. This study aimed to investigate the protective role of EPO against myocardial I/R injury under a clinically relevant moderate hyperglycemic condition and its associated mechanisms. Eighty-two Sprague-Dawley rats were randomly assigned to six groups: normoglycemia-Sham, normoglycemia-I/R-control-saline (IRC), normoglycemia-I/R-EPO (IRE), hyperglycemia-Sham, hyperglycemia-IRC, and hyperglycemia-IRE. The rats received 1.2 g/kg dextrose or same volume of normal saline depending on the group. I/R was induced by a 30 min period of ischemia followed by reperfusion for 4 h. For 1 h before I/R injury, intravenous 4000 IU/kg of EPO was administered. EPO pretreatment significantly reduced the number of apoptotic cells and the infarct size compared with those of the control groups. EPO increased GATA-4 phosphorylation and acetylation against I/R in hyperglycemic myocardium. It also enhanced ERK induced GATA-4 post-translational modifications such as increased GATA-4 phosphorylation and acetylation, and decreased GATA-4 ubiquitination following hypoxia-reoxygenation in H9c2 cells in hyperglycemic medium. Increased GATA-4 stability by EPO diminished I/R-related down-regulation of Bcl-2 and reduction of caspase-3 activities in hyperglycemic myocardium. In conclusion, EPO pretreatment before I/R injury conveyed significant myocardial protection under moderate hyperglycemic condition through mechanisms involved in reduction of caspase-3 activity and up-regulation of Bcl-2 in association with enhanced ERK-induced GATA-4 stability.
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Affiliation(s)
- Ji Hae Jun
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Na-Hyung Jun
- Department of Anesthesiology and Pain Medicine, National Health Insurance Corporation Ilsan Hospital, Goyang, Republic of Korea
| | - Jae-Kwang Shim
- Department of Anesthesiology and Pain Medicine, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Jung Shin
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young-Lan Kwak
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Anesthesiology and Pain Medicine, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Abstract
Diabetic cardiomyopathy (DCM), as one of the major cardiac complications in diabetic patients, is known to related with oxidative stress that is due to a severe imbalance between reactive oxygen species (ROS) and/or reactive nitrogen species (RNS) generation and their clearance by antioxidant defense systems. Transcription factor nuclear factor NF-E2-related factor 2 (Nrf2) plays an important role in maintaining the oxidative homeostasis by regulating multiple downstream antioxidants. Diabetes may up-regulate several antioxidants in the heart as a compensative mechanism at early stage, but at late stage, diabetes not only generates extra ROS and/or RNS but also impairs antioxidant capacity in the heart, including Nrf2. In an early study, we have established that Nrf2 protect the cardiac cells and heart from high level of glucose in vitro and hyperglycemia in vivo, and in the following study demonstrated the significant down-regulation of cardiac Nrf2 expression in diabetic animals and patients. Using Nrf2-KO mice or Nrf2 inducers, blooming evidence has indicated the important protection by Nrf2 from cardiac pathogenesis in the diabetes. Therefore, this brief review summarizes the status of studies on Nrf2's role in preventing DCM and even other complications, the need for new and safe Nrf2 inducer screening and the precaution for the undesirable side of Nrf2 under certain conditions.
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Affiliation(s)
- Jing Chen
- Kosair Children's Hospital Research Institute, Department of Pediatrics, the University of Louisville School of Medicine, Louisville, KY, USA
| | - Zhiguo Zhang
- Kosair Children's Hospital Research Institute, Department of Pediatrics, the University of Louisville School of Medicine, Louisville, KY, USA
- The Center of Cardiovascular Diseases, the First Hospital of Jilin University, Changchun, China
| | - Lu Cai
- Kosair Children's Hospital Research Institute, Department of Pediatrics, the University of Louisville School of Medicine, Louisville, KY, USA
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Vakhshiteh F, Allaudin ZN, Lila MABM, Abbasiliasi S, Ajdari Z. Nucleotide sequencing, cloning, and expression of Capra hircus Heme Oxygenase-1 in caprine islets to promote insulin secretion in vitro. Mol Biotechnol 2014; 57:75-83. [PMID: 25218408 DOI: 10.1007/s12033-014-9803-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Transplantation of islets of Langerhans that have been isolated from whole pancreas is an attractive alternative for the reversal of Type 1 diabetes. However, in vitro culture of isolated pancreatic islets has been reported to cause a decrease in glucose response over time. Hence, the improvement in islet culture conditions is an important goal in islet transplantation. Heme Oxygenase-1 (HO-1) is a stress protein that has been described as an inducible protein with the capacity of preventing apoptosis and cytoprotection via radical scavenging. Therefore, this study was aimed to assess the influence of endogenous HO-1 gene transfer on insulin secretion of caprine islets. The full-length cDNA sequence of Capra hircus HO-1 was determined using specific designed primers and rapid amplification of cDNA ends of pancreatic tissue. The HO-1 cDNA was then cloned into the prokaryotic expression vectors and transfected into caprine islets using lipid carriers. Efficiency of lipid carriers to transfect caprine islets was determined by flow cytometry. Insulin secretion assay was carried out by ovine insulin ELISA. The finding demonstrated that endogenous HO-1 gene transfer could improve caprine islet function in in vitro culture. Consequently, strategies using HO-1 gene transfer to islets might lead to better outcome in islet transplantation.
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Affiliation(s)
- Faezeh Vakhshiteh
- Institute of Bioscience, Universiti Putra Malaysia, 43300, Serdang, Selangor, Malaysia
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48
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The role of Nrf2-mediated pathway in cardiac remodeling and heart failure. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:260429. [PMID: 25101151 PMCID: PMC4102082 DOI: 10.1155/2014/260429] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/12/2014] [Accepted: 04/30/2014] [Indexed: 12/30/2022]
Abstract
Heart failure (HF) is frequently the consequence of sustained, abnormal neurohormonal, and mechanical stress and remains a leading cause of death worldwide. The key pathophysiological process leading to HF is cardiac remodeling, a term referring to maladaptation to cardiac stress at the molecular, cellular, tissue, and organ levels. HF and many of the conditions that predispose one to HF are associated with oxidative stress. Increased generation of reactive oxygen species (ROS) in the heart can directly lead to increased necrosis and apoptosis of cardiomyocytes which subsequently induce cardiac remodeling and dysfunction. Nuclear factor-erythroid-2- (NF-E2-) related factor 2 (Nrf2) is a transcription factor that controls the basal and inducible expression of a battery of antioxidant genes and other cytoprotective phase II detoxifying enzymes that are ubiquitously expressed in the cardiovascular system. Emerging evidence has revealed that Nrf2 and its target genes are critical regulators of cardiovascular homeostasis via the suppression of oxidative stress, which is the key player in the development and progression of HF. The purpose of this review is to summarize evidence that activation of Nrf2 enhances endogenous antioxidant defenses and counteracts oxidative stress-associated cardiac remodeling and HF.
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Ho YJ, Lee AS, Chen WP, Chang WL, Tsai YK, Chiu HL, Kuo YH, Su MJ. Caffeic acid phenethyl amide ameliorates ischemia/reperfusion injury and cardiac dysfunction in streptozotocin-induced diabetic rats. Cardiovasc Diabetol 2014; 13:98. [PMID: 24923878 PMCID: PMC4065079 DOI: 10.1186/1475-2840-13-98] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 05/26/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Caffeic acid phenethyl ester (CAPE) has been shown to protect the heart against ischemia/reperfusion (I/R) injury by various mechanisms including its antioxidant effect. In this study, we evaluated the protective effects of a CAPE analog with more structural stability in plasma, caffeic acid phenethyl amide (CAPA), on I/R injury in streptozotocin (STZ)-induced type 1 diabetic rats. METHODS Type 1 diabetes mellitus was induced in Sprague-Dawley rats by a single intravenous injection of 60 mg/kg STZ. To produce the I/R injury, the left anterior descending coronary artery was occluded for 45 minutes, followed by 2 hours of reperfusion. CAPA was pretreated intraperitoneally 30 minutes before reperfusion. An analog devoid of the antioxidant property of CAPA, dimethoxyl CAPA (dmCAPA), and a nitric oxide synthase (NOS) inhibitor (Nω-nitro-l-arginine methyl ester [l-NAME]) were used to evaluate the mechanism involved in the reduction of the infarct size following CAPA-treatment. Finally, the cardioprotective effect of chronic treatment of CAPA was analyzed in diabetic rats. RESULTS Compared to the control group, CAPA administration (3 and 15 mg/kg) significantly reduced the myocardial infarct size after I/R, while dmCAPA (15 mg/kg) had no cardioprotective effect. Interestingly, pretreatment with a NOS inhibitor, (L-NAME, 3 mg/kg) eliminated the effect of CAPA on myocardial infarction. Additionally, a 4-week CAPA treatment (1 mg/kg, orally, once daily) started 4 weeks after STZ-induction could effectively decrease the infarct size and ameliorate the cardiac dysfunction by pressure-volume loop analysis in STZ-induced diabetic animals. CONCLUSIONS CAPA, which is structurally similar to CAPE, exerts cardioprotective activity in I/R injury through its antioxidant property and by preserving nitric oxide levels. On the other hand, chronic CAPA treatment could also ameliorate cardiac dysfunction in diabetic animals.
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Affiliation(s)
| | | | | | | | | | | | | | - Ming-Jai Su
- Department of Pharmacology, College of Medicine, National Taiwan University, 11F, No, 1, Sec, 1, Jen-Ai Road, Taipei 10051, Taiwan.
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Grochot-Przeczek A, Kotlinowski J, Kozakowska M, Starowicz K, Jagodzinska J, Stachurska A, Volger OL, Bukowska-Strakova K, Florczyk U, Tertil M, Jazwa A, Szade K, Stepniewski J, Loboda A, Horrevoets AJG, Dulak J, Jozkowicz A. Heme oxygenase-1 is required for angiogenic function of bone marrow-derived progenitor cells: role in therapeutic revascularization. Antioxid Redox Signal 2014; 20:1677-92. [PMID: 24206054 PMCID: PMC3961799 DOI: 10.1089/ars.2013.5426] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIMS Heme oxygenase-1 (HO-1) is a cytoprotective enzyme that can be down-regulated in diabetes. Its importance for mature endothelium has been described, but its role in proangiogenic progenitors is not well known. We investigated the effect of HO-1 on the angiogenic potential of bone marrow-derived cells (BMDCs) and on blood flow recovery in ischemic muscle of diabetic mice. RESULTS Lack of HO-1 decreased the number of endothelial progenitor cells (Lin(-)CD45(-)cKit(-)Sca-1(+)VEGFR-2(+)) in murine bone marrow, and inhibited the angiogenic potential of cultured BMDCs, affecting their survival under oxidative stress, proliferation, migration, formation of capillaries, and paracrine proangiogenic potential. Transcriptome analysis of HO-1(-/-) BMDCs revealed the attenuated up-regulation of proangiogenic genes in response to hypoxia. Heterozygous HO-1(+/-) diabetic mice subjected to hind limb ischemia exhibited reduced local expression of vascular endothelial growth factor (VEGF), placental growth factor (PlGF), stromal cell-derived factor 1 (SDF-1), VEGFR-1, VEGFR-2, and CXCR-4. This was accompanied by impaired revascularization of ischemic muscle, despite a strong mobilization of bone marrow-derived proangiogenic progenitors (Sca-1(+)CXCR-4(+)) into peripheral blood. Blood flow recovery could be rescued by local injections of conditioned media harvested from BMDCs, but not by an injection of cultured BMDCs. INNOVATION This is the first report showing that HO-1 haploinsufficiency impairs tissue revascularization in diabetes and that proangiogenic in situ response, not progenitor cell mobilization, is important for blood flow recovery. CONCLUSIONS HO-1 is necessary for a proper proangiogenic function of BMDCs. A low level of HO-1 in hyperglycemic mice decreases restoration of perfusion in ischemic muscle, which can be rescued by a local injection of conditioned media from cultured BMDCs.
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Affiliation(s)
- Anna Grochot-Przeczek
- 1 Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University , Krakow, Poland
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