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Rami M, Rahdar S, Ahmadi Hekmatikar A, Awang Daud DM. Highlighting the novel effects of high-intensity interval training on some histopathological and molecular indices in the heart of type 2 diabetic rats. Front Endocrinol (Lausanne) 2023; 14:1175585. [PMID: 37274326 PMCID: PMC10235768 DOI: 10.3389/fendo.2023.1175585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/04/2023] [Indexed: 06/06/2023] Open
Abstract
Background Type 2 diabetes is one of the most common metabolic diseases in recent years and has become an important risk factor for cardiovascular disorders. The first goal is to reduce type 2 diabetes, and in the case of cardiovascular disease, the second goal is to reduce and manage that disorder. Materials and methods The rats were divided into 4 groups: Healthy Control (n=8), Diabetes Control (n=8), Diabetes Training (n=8), and Healthy Training (n=8). The protocol consisted of 8 weeks of High-intensity interval (5 sessions per week), where the training started with 80% of the peak speed in the first week, and 10% was added to this speed every week. To measure the level of B-catenin, c-MYC, GSK3B, and Bcl-2 proteins using the western blot method, cardiac pathological changes were measured using hematoxylin and eosin staining, Masson's trichrome and PAS staining and apoptosis using the TUNEL method. Findings Histological results showed that diabetes causes significant pathological hypertrophy, fibrosis, and severe apoptosis in heart tissue. HIIT training significantly reduced pathological hypertrophy and fibrosis in heart tissue, and the rate of cardiomyocyte apoptosis was greatly reduced. This research showed that diabetes disorder increases the levels of B-catenin and c-Myc proteins and causes a decrease in the expression of GSK3B and Bcl-2 proteins. After eight weeks of HIIT training, the levels of B-catenin and c-Myc proteins decreased significantly, and the levels of GSK3B and Bcl-2 proteins increased. Conclusion This study showed that HIIT could be a suitable strategy to reduce cardiomyopathy in type 2 diabetic rats. However, it is suggested that in future studies, researchers should perform different intensities and exercises to promote exercise goals in type 2 diabetic cardiomyopathy.
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Affiliation(s)
- Mohammad Rami
- Department of Sport Physiology, Faculty of Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Samane Rahdar
- Department of Basic Sciences, Histology section, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Amirhoseein Ahmadi Hekmatikar
- Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
| | - D. Maryama Awang Daud
- Health Through Exercise and Active Living (HEAL) Research Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
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2
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Balatskyi VV, Sowka A, Dobrzyn P, Piven OO. WNT/β-catenin pathway is a key regulator of cardiac function and energetic metabolism. Acta Physiol (Oxf) 2023; 237:e13912. [PMID: 36599355 DOI: 10.1111/apha.13912] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/24/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
The WNT/β-catenin pathway is a master regulator of cardiac development and growth, and its activity is low in healthy adult hearts. However, even this low activity is essential for maintaining normal heart function. Acute activation of the WNT/β-catenin signaling cascade is considered to be cardioprotective after infarction through the upregulation of prosurvival genes and reprogramming of metabolism. Chronically high WNT/β-catenin pathway activity causes profibrotic and hypertrophic effects in the adult heart. New data suggest more complex functions of β-catenin in metabolic maturation of the perinatal heart, establishing an adult pattern of glucose and fatty acid utilization. Additionally, low basal activity of the WNT/β-catenin cascade maintains oxidative metabolism in the adult heart, and this pathway is reactivated by physiological or pathological stimuli to meet the higher energy needs of the heart. This review summarizes the current state of knowledge of the organization of canonical WNT signaling and its function in cardiogenesis, heart maturation, adult heart function, and remodeling. We also discuss the role of the WNT/β-catenin pathway in cardiac glucose, lipid metabolism, and mitochondrial physiology.
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Affiliation(s)
- Volodymyr V Balatskyi
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Adrian Sowka
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Pawel Dobrzyn
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Oksana O Piven
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- Department of Human Genetics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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3
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Ni B, Sun M, Zhao J, Wang J, Cao Z. The role of β-catenin in cardiac diseases. Front Pharmacol 2023; 14:1157043. [PMID: 37033656 PMCID: PMC10073558 DOI: 10.3389/fphar.2023.1157043] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
The Wnt/β-catenin signaling pathway is a classical Wnt pathway that regulates the stability and nuclear localization of β-catenin and plays an important role in adult heart development and cardiac tissue homeostasis. In recent years, an increasing number of researchers have implicated the dysregulation of this signaling pathway in a variety of cardiac diseases, such as myocardial infarction, arrhythmias, arrhythmogenic cardiomyopathy, diabetic cardiomyopathies, and myocardial hypertrophy. The morbidity and mortality of cardiac diseases are increasing, which brings great challenges to clinical treatment and seriously affects patient health. Thus, understanding the biological roles of the Wnt/β-catenin pathway in these diseases may be essential for cardiac disease treatment and diagnosis to improve patient quality of life. In this review, we summarize current research on the roles of β-catenin in human cardiac diseases and potential inhibitors of Wnt/β-catenin, which may provide new strategies for cardiac disease therapies.
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4
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Gao Q, Chen Y, Yue L, Li Z, Wang M. Knockdown of TMEM132A restrains the malignant phenotype of gastric cancer cells via inhibiting Wnt signaling. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2022; 42:343-357. [PMID: 36441075 DOI: 10.1080/15257770.2022.2148692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transmembrane protein 132 A (TMEM132A) has been recently reported to be a novel regulator of the Wnt signaling pathway, which is a cancer-associated cascade. However, the role of TMEM132A in cancer is not well characterized. Here, we used bioinformatics analysis to analyze the differential expression of TMEM132A in gastric cancer (GC) tissues and determine its diagnostic and prognostic value. Results showed that TMEM132A expression was upregulated in GC tissues. TMEM132A was also found to have diagnostic and prognostic roles in patient with GC. Furthermore, as evaluated by in vitro assays, knockdown of TMEM132A restrained cell proliferation, migration, and invasion of GC cells, while overexpression of TMEM132A exerted opposite effects. However, the effects of TMEM132A silencing and overexpression on GC cells were reversed by treatment with LiCl and ICG-001 (the Wnt signaling activator and inhibitor), respectively. In addition, in vivo assays showed that knockdown of TMEM132A suppressed GC tumorigenesis. Hence, our results provide new insights into the oncogenic role of TMEM132A in regulating GC cell proliferation, migration, and invasion, as well as its prognostic and therapeutic roles in patients with GC. These data highlight the diagnostic, prognostic, and therapeutic potential of TMEM132A in GC.
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Affiliation(s)
- Qianqian Gao
- Department of Pathology, Changzhou Cancer Hospital Affiliated to Soochow University, Changzhou, China
| | - Yufang Chen
- Department of Pathology, Changzhou Cancer Hospital Affiliated to Soochow University, Changzhou, China
| | - Lingping Yue
- Department of Pathology, Changzhou Cancer Hospital Affiliated to Soochow University, Changzhou, China
| | - Ziyan Li
- Department of Pathology, Changzhou Cancer Hospital Affiliated to Soochow University, Changzhou, China
| | - Meihua Wang
- Department of Pathology, Changzhou Cancer Hospital Affiliated to Soochow University, Changzhou, China
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5
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Chen X, Li Y, Yuan X, Yuan W, Li C, Zeng Y, Lian Y, Qiu X, Qin Y, Zhang G, Liu X, Luo C, Luo JD, Hou N. Methazolamide Attenuates the Development of Diabetic Cardiomyopathy by Promoting β-Catenin Degradation in Type 1 Diabetic Mice. Diabetes 2022; 71:795-811. [PMID: 35043173 DOI: 10.2337/db21-0506] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 12/21/2021] [Indexed: 11/13/2022]
Abstract
Methazolamide (MTZ), a carbonic anhydrase inhibitor, has been shown to inhibit cardiomyocyte hypertrophy and exert a hypoglycemic effect in patients with type 2 diabetes and diabetic db/db mice. However, whether MTZ has a cardioprotective effect in the setting of diabetic cardiomyopathy is not clear. We investigated the effects of MTZ in a mouse model of streptozotocin-induced type 1 diabetes mellitus (T1DM). Diabetic mice received MTZ by intragastric gavage (10, 25, or 50 mg/kg, daily for 16 weeks). In the diabetic group, MTZ significantly reduced both random and fasting blood glucose levels and improved glucose tolerance in a dose-dependent manner. MTZ ameliorated T1DM-induced changes in cardiac morphology and dysfunction. Mechanistic analysis revealed that MTZ blunted T1DM-induced enhanced expression of β-catenin. Similar results were observed in neonatal rat cardiomyocytes (NRCMs) and adult mouse cardiomyocytes treated with high glucose or Wnt3a (a β-catenin activator). There was no significant change in β-catenin mRNA levels in cardiac tissues or NRCMs. MTZ-mediated β-catenin downregulation was recovered by MG132, a proteasome inhibitor. Immunoprecipitation and immunofluorescence analyses showed augmentation of AXIN1-β-catenin interaction by MTZ in T1DM hearts and in NRCMs treated with Wnt3a; thus, MTZ may potentiate AXIN1-β-catenin linkage to increase β-catenin degradation. Overall, MTZ may alleviate cardiac hypertrophy by mediating AXIN1-β-catenin interaction to promote degradation and inhibition of β-catenin activity. These findings may help inform novel therapeutic strategy to prevent heart failure in patients with diabetes.
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Affiliation(s)
- Xiaoqing Chen
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yilang Li
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xun Yuan
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Wenchang Yuan
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Conglin Li
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yue Zeng
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yuling Lian
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xiaoxia Qiu
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Zhujiang Hospital of Southern Medical University, Guangzhou, People's Republic of China
| | - Yuan Qin
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Guiping Zhang
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Xiawen Liu
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Chengfeng Luo
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jian-Dong Luo
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Ning Hou
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State and NMPA Key Laboratory, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
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6
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Peng M, Liu H, Ji Q, Ma P, Niu Y, Ning S, Sun H, Pang X, Yang Y, Zhang Y, Han J, Hao G. Fufang Xueshuantong Improves Diabetic Cardiomyopathy by Regulating the Wnt/ β-Catenin Pathway. Int J Endocrinol 2022; 2022:3919161. [PMID: 36237833 PMCID: PMC9553353 DOI: 10.1155/2022/3919161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 07/02/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is one of the main complications of diabetic patients and the major reason for the high prevalence of heart failure in diabetic patients. Fufang Xueshuantong (FXST) is a traditional Chinese medicine formula commonly used in the treatment of diabetic retinopathy and stable angina pectoris. However, the role of FXST in DCM has not yet been clarified. This study was conducted to investigate the effects of FXST on diabetic myocardial lesions and reveal its molecular mechanism. The rats were intraperitoneally injected with 65 mg/kg streptozotocin (STZ) to induce diabetes mellitus (DM). DM rats were given saline or FXST. The rats in the control group were intraperitoneally injected with an equal amount of sodium citrate buffer and gavaged with saline. After 12 weeks, echocardiography, heart weight index (HWI), and myocardial pathological changes were determined. The expression of transforming growth factor-beta1 (TGF-β1), collagen I, and collagen III was examined using immunofluorescence staining and western blot. The expressions of Wnt/β-catenin signaling pathway-related proteins and mRNA were detected by western blot and real-time PCR. The results showed that FXST significantly improved cardiac function, ameliorated histopathological changes, and decreased HWI in the DM rats. FXST significantly inhibited the expression of myocardial TGF-β1, collagen I, and collagen III in DM rats. Furthermore, FXST significantly inhibited the Wnt/β-catenin pathway. Taken together, FXST has a protective effect on DCM, which might be mediated by suppressing the Wnt/β-catenin pathway.
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Affiliation(s)
- Meizhong Peng
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Hanying Liu
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Qingxuan Ji
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Pan Ma
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yiting Niu
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shangqiu Ning
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Huihui Sun
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xinxin Pang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yuqian Yang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yuting Zhang
- Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jing Han
- Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Gaimei Hao
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
- Gansu Provincial Hospital of Traditional Chinese Medicine, Gansu, China
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7
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Nie X, Wei X, Ma H, Fan L, Chen WD. The complex role of Wnt ligands in type 2 diabetes mellitus and related complications. J Cell Mol Med 2021; 25:6479-6495. [PMID: 34042263 PMCID: PMC8278111 DOI: 10.1111/jcmm.16663] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/02/2021] [Accepted: 05/10/2021] [Indexed: 12/15/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the major chronic diseases, whose prevalence is increasing dramatically worldwide and can lead to a range of serious complications. Wnt ligands (Wnts) and their activating Wnt signalling pathways are closely involved in the regulation of various processes that are important for the occurrence and progression of T2DM and related complications. However, our understanding of their roles in these diseases is quite rudimentary due to the numerous family members of Wnts and conflicting effects via activating the canonical and/or non-canonical Wnt signalling pathways. In this review, we summarize the current findings on the expression pattern and exact role of each human Wnt in T2DM and related complications, including Wnt1, Wnt2, Wnt2b, Wnt3, Wnt3a, Wnt4, Wnt5a, Wnt5b, Wnt6, Wnt7a, Wnt7b, Wnt8a, Wnt8b, Wnt9a, Wnt9b, Wnt10a, Wnt10b, Wnt11 and Wnt16. Moreover, the role of main antagonists (sFRPs and WIF-1) and coreceptor (LRP6) of Wnts in T2DM and related complications and main challenges in designing Wnt-based therapeutic approaches for these diseases are discussed. We hope a deep understanding of the mechanistic links between Wnt signalling pathways and diabetic-related diseases will ultimately result in a better management of these diseases.
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Affiliation(s)
- Xiaobo Nie
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences, People's Hospital of Hebi, Henan University, Kaifeng, China
| | - Xiaoyun Wei
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences, People's Hospital of Hebi, Henan University, Kaifeng, China
| | - Han Ma
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences, People's Hospital of Hebi, Henan University, Kaifeng, China
| | - Lili Fan
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences, People's Hospital of Hebi, Henan University, Kaifeng, China
| | - Wei-Dong Chen
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences, People's Hospital of Hebi, Henan University, Kaifeng, China.,Key Laboratory of Molecular Pathology, School of Basic Medical Science, Inner Mongolia Medical University, Hohhot, China
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8
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Liu S, Yu J, Fu M, Wang X, Chang X. Regulatory effects of hawthorn polyphenols on hyperglycemic, inflammatory, insulin resistance responses, and alleviation of aortic injury in type 2 diabetic rats. Food Res Int 2021; 142:110239. [PMID: 33773689 DOI: 10.1016/j.foodres.2021.110239] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 01/26/2021] [Accepted: 02/11/2021] [Indexed: 12/24/2022]
Abstract
Hawthorn polyphenol extract (HPE) is beneficial for patients with type 2 diabetes (T2D). However, the mechanism underlying its beneficial effects remains unclear. We investigated the inhibitory effects and mechanisms of HPE on insulin resistance, inflammation, and aortic injury in T2D rats, using metformin (MF) as a positive control. High-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) was used to determine the primary polyphenols in HPE. Hematoxylin & Eosin (H&E) staining was used to evaluate pathological conditions of the skeletal muscle, liver, and aorta vessels in each group. The levels of serum and intestinal tissue oxidative stress, tumor necrosis factor α (TNF-α), and inflammatory interleukin-6 (IL-6) were also assessed. Western blotting was used to evaluate protein expression levels in the associated molecular pathway. Volatile organic compounds (VOCs) from colon contents were determined using headspace-gas chromatography-ion mobility chromatography. Our results showed that supplementation with 300 mg HPE/kg body weight over four weeks significantly improved total cholesterol (TC), total triglyceride (TG), insulin, and lipopolysaccharide (LPS) levels in diabetic rats (p < 0.01). The lesions of skeletal muscle, liver, and aorta in diabetic rats were significantly improved. HPE supplementation also significantly downregulated the inflammatory factors (IL-6, TNF-α, and MCP-1) in the liver of diabetic rats via the SIRT1/AMPK/NF-κB signaling pathway. Furthermore, HPE significantly reduced insulin resistance in T2D rats by upregulating the phosphorylation of glucose absorption protein (GLUT4) and insulin resistance-associated proteins, p-IRS1, p-AKT, and p-PI3K, in the rat liver (p < 0.01). The findings show that HPE could also alleviate aortic injury by activating SIRT1 and regulating the NF-κB and Wnt2/β-catenin signaling pathways. Overall, the results of this study suggest that both HPE and MF have similar inhibitory effects on T2D in rats and that HPE could be used as a functional food component in the adjuvant treatment of T2D.
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Affiliation(s)
- Suwen Liu
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066004, China.
| | - Jincheng Yu
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066004, China
| | - Mengfan Fu
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066004, China
| | - Xinfang Wang
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066004, China
| | - Xuedong Chang
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066004, China; Hebei (Chengde) Hawthorn Industrial Technology Research Institute, Chengde, Hebei 067000, China
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9
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Hydrogen Sulfide Attenuates High Glucose-induced Myocardial Injury in Rat Cardiomyocytes by Suppressing Wnt/beta-catenin Pathway. Curr Med Sci 2019; 39:938-946. [PMID: 31845225 DOI: 10.1007/s11596-019-2120-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/08/2019] [Indexed: 12/12/2022]
Abstract
Diabetic cardiomyopathy (DCM) is one of the major heart complications of diabetic patients. Hydrogen sulfide (H2S) is now recognized as an important signaling molecule and has been shown to attenuate the development of diabetic cardiomyopathy. However, the underlying mechanisms linking H2S and the development of DCM have not been fully elucidated. In the present study, we therefore sought to explore the role and mechanism of H2S in the pathogenesis of DCM by establishing high glucose-induced injury model in neonatal rat cardiomyocytes (NRCMs) and H9c2 cells. Using cystathionine gamma-lyase (CSE) overexpression and CSE interference vectors transfection, the cell viability, cell apoptosis. and oxidative stress were determined and compared between the treatment of high glucose induction and exgenous NaHS administration. Meanwhile, the relationship between the CSE/H2S system and Wnt/beta-catenin pathway was analyzed and discussed in the high glucose-induced cardiomyocytes. Our results indicated that H2S played an important protective role in high glucose-induced apoptosis and oxidative stress in cardiomyocytes, as shown by the decreased reactive oxygen species and malondialdehyde levels, and the increased activities of superoxide dismutase, catalase and glutathione peroxidase. Moreover, H2S could attenuate the Wnt/β-catenin signalling pathway and up-regulate the expression of haem oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO1) in the diabetic myocardium cells. Together, these results demonstrated that H2S could attenuate high glucose-induced myocardial injury in rat cardiomyocytes by suppressing Wnt/β-catenin pathway.
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10
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Resham K, Sharma SS. Pharmacologic Inhibition of Porcupine, Disheveled, and β-Catenin in Wnt Signaling Pathway Ameliorates Diabetic Peripheral Neuropathy in Rats. THE JOURNAL OF PAIN 2019; 20:1338-1352. [PMID: 31075529 DOI: 10.1016/j.jpain.2019.04.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/22/2019] [Accepted: 03/15/2019] [Indexed: 12/23/2022]
Abstract
Wnt signaling pathway has been investigated extensively for its diverse metabolic and pain-modulating mechanisms; recently its involvement has been postulated in the development of neuropathic pain. However, there are no reports as yet on the involvement of Wnt signaling pathway in one of the most debilitating neurovascular complication of diabetes, namely, diabetic peripheral neuropathy (DPN). Thus, in the present study, involvement of Wnt signaling was investigated in DPN using Wnt signaling inhibitors namely LGK974 (porcupine inhibitor), NSC668036 (disheveled inhibitor), and PNU74654 (β-catenin inhibitor). Diabetes was induced by a single intraperitoneal injection of streptozotocin (50 mg/kg) to male Sprague-Dawley rats. Diabetic rats after 6 weeks of diabetes induction showed increased expression of Wnt signaling proteins in the spinal cord (L4-L6 lumbar segment), dorsal root ganglions and sciatic nerves. Subsequent increase in inflammation, endoplasmic reticulum stress and loss of intraepidermal nerve fiber density was also observed, leading to neurobehavioral and nerve functional deficits in diabetic rats. Intrathecal administration of Wnt signaling inhibitors (each at doses of 10 and 30 µmol/L) in diabetic rats showed improvement in pain-associated behaviors (heat, cold, and mechanical hyperalgesia) and nerve functions (motor, sensory nerve conduction velocities, and nerve blood flow) by decreasing the expression of Wnt pathway proteins, inflammatory marker, matrix metalloproteinase 2, endoplasmic reticulum stress marker, glucose-regulated protein 78, and improving intraepidermal nerve fiber density. All these results signify the neuroprotective potential of Wnt signaling inhibitors in DPN. PERSPECTIVE: This study emphasizes the involvement of Wnt signaling pathway in DPN. Blockade of this pathway using Wnt inhibitors provided neuroprotection in experimental DPN in rats. This study may provide a basis for exploring the therapeutic potential of Wnt inhibitors in DPN patients.
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Affiliation(s)
- Kahkashan Resham
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab, India
| | - Shyam S Sharma
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab, India.
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11
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Teng X, Ji C, Zhong H, Zheng D, Ni R, Hill DJ, Xiong S, Fan GC, Greer PA, Shen Z, Peng T. Selective deletion of endothelial cell calpain in mice reduces diabetic cardiomyopathy by improving angiogenesis. Diabetologia 2019; 62:860-872. [PMID: 30778623 PMCID: PMC6702672 DOI: 10.1007/s00125-019-4828-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 01/14/2019] [Indexed: 01/09/2023]
Abstract
AIMS/HYPOTHESIS The role of non-cardiomyocytes in diabetic cardiomyopathy has not been fully addressed. This study investigated whether endothelial cell calpain plays a role in myocardial endothelial injury and microvascular rarefaction in diabetes, thereby contributing to diabetic cardiomyopathy. METHODS Endothelial cell-specific Capns1-knockout (KO) mice were generated. Conditions mimicking prediabetes and type 1 and type 2 diabetes were induced in these KO mice and their wild-type littermates. Myocardial function and coronary flow reserve were assessed by echocardiography. Histological analyses were performed to determine capillary density, cardiomyocyte size and fibrosis in the heart. Isolated aortas were assayed for neovascularisation. Cultured cardiac microvascular endothelial cells were stimulated with high palmitate. Angiogenesis and apoptosis were analysed. RESULTS Endothelial cell-specific deletion of Capns1 disrupted calpain 1 and calpain 2 in endothelial cells, reduced cardiac fibrosis and hypertrophy, and alleviated myocardial dysfunction in mouse models of diabetes without significantly affecting systemic metabolic variables. These protective effects of calpain disruption in endothelial cells were associated with an increase in myocardial capillary density (wild-type vs Capns1-KO 3646.14 ± 423.51 vs 4708.7 ± 417.93 capillary number/high-power field in prediabetes, 2999.36 ± 854.77 vs 4579.22 ± 672.56 capillary number/high-power field in type 2 diabetes and 2364.87 ± 249.57 vs 3014.63 ± 215.46 capillary number/high-power field in type 1 diabetes) and coronary flow reserve. Ex vivo analysis of neovascularisation revealed more endothelial cell sprouts from aortic rings of prediabetic and diabetic Capns1-KO mice compared with their wild-type littermates. In cultured cardiac microvascular endothelial cells, inhibition of calpain improved angiogenesis and prevented apoptosis under metabolic stress. Mechanistically, deletion of Capns1 elevated the protein levels of β-catenin in endothelial cells of Capns1-KO mice and constitutive activity of calpain 2 suppressed β-catenin protein expression in cultured endothelial cells. Upregulation of β-catenin promoted angiogenesis and inhibited apoptosis whereas knockdown of β-catenin offset the protective effects of calpain inhibition in endothelial cells under metabolic stress. CONCLUSIONS/INTERPRETATION These results delineate a primary role of calpain in inducing cardiac endothelial cell injury and impairing neovascularisation via suppression of β-catenin, thereby promoting diabetic cardiomyopathy, and indicate that calpain is a promising therapeutic target to prevent diabetic cardiac complications.
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Affiliation(s)
- Xiaomei Teng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
- Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
- Institute for Cardiovascular Science, Soochow University, Suzhou, China
- Critical Illness Research, Lawson Health Research Institute, VRL 6th Floor, A6-140, 800 Commissioners Road, London, ON, N6A 4G5, Canada
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada
| | - Chen Ji
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Huiting Zhong
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Dong Zheng
- Critical Illness Research, Lawson Health Research Institute, VRL 6th Floor, A6-140, 800 Commissioners Road, London, ON, N6A 4G5, Canada
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada
| | - Rui Ni
- Critical Illness Research, Lawson Health Research Institute, VRL 6th Floor, A6-140, 800 Commissioners Road, London, ON, N6A 4G5, Canada
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada
| | - David J Hill
- Critical Illness Research, Lawson Health Research Institute, VRL 6th Floor, A6-140, 800 Commissioners Road, London, ON, N6A 4G5, Canada
- Department of Medicine, Western University, London, ON, Canada
- Department of Physiology and Pharmacology, Western University, London, ON, Canada
| | - Sidong Xiong
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Guo-Chang Fan
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Peter A Greer
- Division of Cancer Biology and Genetics, Queen's University Cancer Research Institute, Queen's University, Kingston, ON, Canada
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
| | - Zhenya Shen
- Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
- Institute for Cardiovascular Science, Soochow University, Suzhou, China
| | - Tianqing Peng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China.
- Critical Illness Research, Lawson Health Research Institute, VRL 6th Floor, A6-140, 800 Commissioners Road, London, ON, N6A 4G5, Canada.
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada.
- Department of Medicine, Western University, London, ON, Canada.
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Yin MS, Zhang YC, Xu SH, Liu JJ, Sun XH, Liang C, Wang Y, Li J, Wang FW, Wang QL, Mu YL. Puerarin prevents diabetic cardiomyopathy in vivo and in vitro by inhibition of inflammation. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:476-493. [PMID: 29322879 DOI: 10.1080/10286020.2017.1405941] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/13/2017] [Indexed: 06/07/2023]
Abstract
Diabetic cardiomyopathy (DCM) is one of the chief diabetes mellitus complications. Inflammation factors may be one reason for the damage from DM. The purpose of this research is to study the potential protective effects of puerarin on DM and the possible mechanisms of action related to NF-κB signal pathway. Following administration of puerarin to the disease model rat, several changes were observed including the changes of serum biochemical index, improved diastolic dysfunction, and enhanced endogenous antioxidant enzymes activities, further NF-κB signaling activation. Puerarin showed cardio-protective effects on DCM by inhibiting inflammation, and it might be a potential candidate for the treatment of DCM.
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Affiliation(s)
- Mao-Shan Yin
- a Center for Drug Evaluation , Food and Drug Administration , Beijing 100038 , China
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Yi-Chi Zhang
- c Department of Pharmacy , Jinan Children's Hospital , Jinan 250022 , China
| | - Shu-Hong Xu
- d State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100050 , China
| | - Jing-Jing Liu
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Xiao-Hui Sun
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Chen Liang
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Yan Wang
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Jie Li
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Fu-Wen Wang
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
| | - Qing-Li Wang
- a Center for Drug Evaluation , Food and Drug Administration , Beijing 100038 , China
| | - Yan-Ling Mu
- b Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan , China
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13
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ShamsEldeen AM, Ashour H, Shoukry HS, Fadel M, Kamar SS, Aabdelbaset M, Rashed LA, Ammar HI. Combined treatment with systemic resveratrol and resveratrol preconditioned mesenchymal stem cells, maximizes antifibrotic action in diabetic cardiomyopathy. J Cell Physiol 2018; 234:10942-10963. [PMID: 30537190 DOI: 10.1002/jcp.27947] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 10/24/2018] [Indexed: 12/30/2022]
Affiliation(s)
| | - Hend Ashour
- Department of Physiology Faculty of Medicine, Cairo University Giza Egypt
| | - Heba Samy Shoukry
- Department of Physiology Faculty of Medicine, Cairo University Giza Egypt
| | - Mostafa Fadel
- Department of Diagnostic Imaging and Endoscopy Unit, Animal Reproduction Research Institute Giza Egypt
| | - Samaa Samir Kamar
- Department of Medical Histology Faculty of Medicine, Cairo University Giza Egypt
| | | | - Laila Ahmed Rashed
- Department of Biochemistry Faculty of Medicine, Cairo University Giza Egypt
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Cardiomyocyte-specific deletion of GSK-3β leads to cardiac dysfunction in a diet induced obesity model. Int J Cardiol 2018; 259:145-152. [PMID: 29398139 DOI: 10.1016/j.ijcard.2018.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/19/2017] [Accepted: 01/02/2018] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND RATIONALE Obesity, an independent risk factor for the development of myocardial diseases is a growing healthcare problem worldwide. It's well established that GSK-3β is critical to cardiac pathophysiology. However, the role cardiomyocyte (CM) GSK-3β in diet-induced cardiac dysfunction is unknown. METHODS CM-specific GSK-3β knockout (CM-GSK-3β-KO) and littermate controls (WT) mice were fed either a control diet (CD) or high-fat diet (HFD) for 55weeks. Cardiac function was assessed by transthoracic echocardiography. RESULTS At baseline, body weights and cardiac function were comparable between the WT and CM-GSK-3β-KOs. However, HFD-fed CM-GSK-3β-KO mice developed severe cardiac dysfunction. Consistently, both heart weight/tibia length and lung weight/tibia length were significantly elevated in the HFD-fed CM-GSK-3β-KO mice. The impaired cardiac function and adverse ventricular remodeling in the CM-GSK-3β-KOs were independent of body weight or the lean/fat mass composition as HFD-fed CM-GSK-3β-KO and controls demonstrated comparable body weight and body masses. At the molecular level, on a CD, CM-GSK-3α compensated for the loss of CM-GSK-3β, as evident by significantly reduced GSK-3αs21 phosphorylation (activation) resulting in a preserved canonical β-catenin ubiquitination pathway and cardiac function. However, this protective compensatory mechanism is lost with HFD, leading to excessive accumulation of β-catenin in HFD-fed CM-GSK-3β-KO hearts, resulting in adverse ventricular remodeling and cardiac dysfunction. CONCLUSION In summary, these results suggest that cardiac GSK-3β is crucial to protect against obesity-induced adverse ventricular remodeling and cardiac dysfunction.
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15
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Yang Q, Wang WW, Ma P, Ma ZX, Hao M, Adelusi TI, Lei-Du, Yin XX, Lu Q. Swimming training alleviated insulin resistance through Wnt3a/ β-catenin signaling in type 2 diabetic rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2017; 20:1220-1226. [PMID: 29299199 PMCID: PMC5749356 DOI: 10.22038/ijbms.2017.9473] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 08/10/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Increasing evidence suggests that regular physical exercise improves type 2 diabetes mellitus (T2DM). However, the potential beneficial effects of swimming on insulin resistance and lipid disorder in T2DM, and its underlying mechanisms remain unclear. MATERIALS AND METHODS Rats were fed with high fat diet and given a low dosage of Streptozotocin (STZ) to induce T2DM model, and subsequently treated with or without swimming exercise. An 8-week swimming program (30, 60 or 120 min per day, 5 days per week) decreased body weight, fasting blood glucose and fasting insulin. RESULTS Swimming ameliorated lipid disorder, improved muscular atrophy and revealed a reduced glycogen deposit in skeletal muscles of diabetic rats. Furthermore, swimming also inhibited the activation of Wnt3a/β-catenin signaling pathway, decreased Wnt3a mRNA and protein level, upregulated GSK3β phosphorylation activity and reduced the expression of β-catenin phosphorylation in diabetic rats. CONCLUSION The trend of the result suggests that swimming exercise proved to be a potent ameliorator of insulin resistancein T2DM through the modulation of Wnt3a/β-catenin pathway and therefore, could present a promising therapeutic measure towards the treatment of diabetes and its relatives.
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Affiliation(s)
- Qiang Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Wen-wen Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Pu Ma
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Zhong-xuan Ma
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Meng Hao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Temitope I Adelusi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Lei-Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Xiao-Xing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
| | - Qian Lu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou 221002, Jiangsu, China
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16
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Wnt5a is associated with right ventricular dysfunction and adverse outcome in dilated cardiomyopathy. Sci Rep 2017; 7:3490. [PMID: 28615692 PMCID: PMC5471231 DOI: 10.1038/s41598-017-03625-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 05/02/2017] [Indexed: 01/23/2023] Open
Abstract
The Wingless (Wnt) pathway has been implicated in the pathogenesis of dilated cardiomyopathy (DCM). To explore the role of Wnt modulators Wnt5a and sFRP3 in DCM patients we analyzed the expression of Wnt5a and sFRP3 in plasma and myocardium of DCM patients and evaluated their effects on NFAT luciferase activity in neonatal mouse cardiomyocytes. Elevated circulating Wnt5a (n = 102) was associated with increased pulmonary artery pressures, decreased right ventricular function and adverse outcome, with a stronger association in more severely affected patients. A higher Wnt5a/sFRP3 ratio (n = 25) was found in the right ventricle vs. the left ventricle and was correlated with NFAT activation as well as pulmonary artery pressures. Wnt5a induced NFAT activation and sFRP3 release in cardiomyocytes in vitro, while sFRP3 antagonized Wnt5a. Wnt5a is associated with right ventricular dysfunction and adverse outcome in DCM patients and may promote the progression of DCM through NFAT signaling.
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17
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Drawnel FM, Zhang JD, Küng E, Aoyama N, Benmansour F, Araujo Del Rosario A, Jensen Zoffmann S, Delobel F, Prummer M, Weibel F, Carlson C, Anson B, Iacone R, Certa U, Singer T, Ebeling M, Prunotto M. Molecular Phenotyping Combines Molecular Information, Biological Relevance, and Patient Data to Improve Productivity of Early Drug Discovery. Cell Chem Biol 2017; 24:624-634.e3. [DOI: 10.1016/j.chembiol.2017.03.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/22/2017] [Accepted: 03/24/2017] [Indexed: 12/16/2022]
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18
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Wei H, Qu H, Wang H, Ji B, Ding Y, Liu D, Duan Y, Liang H, Peng C, Xiao X, Deng H. 1,25-Dihydroxyvitamin-D3 prevents the development of diabetic cardiomyopathy in type 1 diabetic rats by enhancing autophagy via inhibiting the β-catenin/TCF4/GSK-3β/mTOR pathway. J Steroid Biochem Mol Biol 2017; 168:71-90. [PMID: 28216152 DOI: 10.1016/j.jsbmb.2017.02.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/09/2017] [Accepted: 02/09/2017] [Indexed: 12/31/2022]
Abstract
Diabetic cardiomyopathy (DCM) can increase the risk of heart failure and death in diabetic patients. However, no effective approaches are available to prevent its progression and development. Studies have shown that vitamin D is greatly implicated in cardiac hypertrophy and fibrosis, and there is a high prevalence of vitamin D deficiency in diabetic patients. In this study, we investigated whether 1,25-Dihydroxyvitamin-D3 (1,25D3) can improve DCM through a vitamin D receptor (VDR)-dependent mechanism associated with autophagy and the β-catenin/T-cell factor/lymphoid enhancer factor (TCF4)/glycogen synthase kinase-3β (GSK-3β)/mammalian target of rapamycin (mTOR) pathway. In this study, streptozotocin (STZ)-induced type 1 diabetic rats were established and were treated with 1,25D3 and/or chloroquine and/or VDR gene silencing for 8 weeks before being sacrificed. Compared with untreated diabetic rats, 1,25D3 partly attenuated the myocardial hypertrophy and interstitial fibrosis, improved cardiac function and restored the impaired cardiac autophagy in diabetic rats, all of which were reversed by silencing the VDR gene in diabetic rats. In high-glucose cultured H9C2 cells, 1,25D3 increased autophagy in a dose-dependent manner. Besides, the β-catenin/TCF4/GSK-3β and mTOR signaling were activated both in diabetic rats and in high-glucose cultured H9C2 cells. Treatment with 1,25D3 inhibited the β-catenin/TCF4/GSK-3β and mTOR signaling in H9C2 cells, whereas co-treatment with lithium chloride (LiCl) reversed this situation and abolished the beneficial effect of 1,25D3 on autophagy. These data suggest that 1,25D3 may improve DCM in type 1 diabetic rats by modulating autophagy through the β-catenin/TCF4/GSK-3β and mTOR pathway. Vitamin D may exist as a new therapeutic target for the treatment of DCM.
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Affiliation(s)
- Huili Wei
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China.
| | - Hua Qu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China.
| | - Hang Wang
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China.
| | - Baolan Ji
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China
| | - Yao Ding
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China
| | - Dan Liu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China
| | - Yang Duan
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China
| | - Huimin Liang
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China
| | - Chuan Peng
- Laboratory of Lipid and Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiaoqiu Xiao
- Laboratory of Lipid and Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Huacong Deng
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing 400016, China.
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Ying Y, Zhu H, Liang Z, Ma X, Li S. GLP1 protects cardiomyocytes from palmitate-induced apoptosis via Akt/GSK3b/b-catenin pathway. J Mol Endocrinol 2015; 55:245-62. [PMID: 26386043 PMCID: PMC4621609 DOI: 10.1530/jme-15-0155] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/18/2015] [Indexed: 12/25/2022]
Abstract
Activation of apoptosis in cardiomyocytes by saturated palmitic acids contributes to cardiac dysfunction in diabetic cardiomyopathy. Beta-catenin (b-catenin) is a transcriptional regulator of several genes involved in survival/anti-apoptosis. However, its role in palmitate-induced cardiomyocyte apoptosis remains unclear. Glucagon-like peptide 1 (GLP1) has been shown to exhibit potential cardioprotective properties. This study was designed to evaluate the role of b-catenin signalling in palmitate-induced cardiomyocyte apoptosis and the molecular mechanism underlying the protective effects of GLP1 on palmitate-stressed cardiomyocytes. Exposure of neonatal rat cardiomyocytes to palmitate increased the fatty acid transporter CD36-mediated intracellular lipid accumulation and cardiomyocyte apoptosis, decreased accumulation and nuclear translocation of active b-catenin, and reduced expression of b-catenin target protein survivin and BCL2. These detrimental effects of palmitate were significantly attenuated by GLP1 co-treatment. However, the anti-apoptotic effects of GLP1 were markedly abolished when b-catenin was silenced with a specific short hairpin RNA. Furthermore, analysis of the upstream molecules and mechanisms responsible for GLP1-associated cardiac protection revealed that GLP1 restored the decreased phosphorylation of protein kinase B (Akt) and glycogen synthase kinase-3b (GSK3b) in palmitate-stimulated cardiomyocytes. In contrast, inhibition of Akt with an Akt-specific inhibitor MK2206 or blockade of GLP1 receptor (GLP1R) with a competitive antagonist exendin-(9-39) significantly abrogated the GLP1-mediated activation of GSK3b/b-catenin signalling, leading to increased apoptosis in palmitate-stressed cardiomyocytes. Collectively, our results demonstrated for the first time that the attenuated b-catenin signalling may contribute to palmitate-induced cardiomyocyte apoptosis, while GLP1 can protect cardiomyocytes from palmitate-induced apoptosis through activation of GLP1R/Akt/GSK3b-mediated b-catenin signalling.
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Affiliation(s)
- Ying Ying
- School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Huazhang Zhu
- School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Zhen Liang
- School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Xiaosong Ma
- School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Shiwei Li
- School of MedicineShenzhen University Diabetes Center, Shenzhen University, Shenzhen 518060, ChinaDepartment of GeriatricShenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
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The Effects of Chinese Medicine on Activation of Wnt/β-Catenin Signal Pathway under High Glucose Condition. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:295135. [PMID: 26495008 PMCID: PMC4606185 DOI: 10.1155/2015/295135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/25/2015] [Accepted: 05/27/2015] [Indexed: 11/17/2022]
Abstract
Diabetes mellitus (DM) is a metabolic disease characterized by chronic hyperglycemia and a series of complications. The Wnt/β-catenin signaling pathway is a complex protein interaction network, which is also a key regulator of cell proliferation and differentiation. Many scholars have found that high glucose can activate the Wnt signaling pathway. However, the effects of activation of this pathway in the presence of high glucose levels during the progression of diabetes still remained unclear. Here, we provide a review of the study on the effects of high glucose state on the Wnt/β-catenin signal pathway and the influence of Chinese medicine on it.
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