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Retracted: PKCδ Promotes High Glucose Induced Renal Tubular Oxidative Damage via Regulating Activation and Translocation of p66Shc. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9826078. [PMID: 35251484 PMCID: PMC8890873 DOI: 10.1155/2022/9826078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 01/09/2022] [Indexed: 11/22/2022]
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Mousavi S, Khazeei Tabari MA, Bagheri A, Samieefar N, Shaterian N, Kelishadi R. The Role of p66Shc in Diabetes: A Comprehensive Review from Bench to Bedside. J Diabetes Res 2022; 2022:7703520. [PMID: 36465704 PMCID: PMC9715346 DOI: 10.1155/2022/7703520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022] Open
Abstract
It is well-documented that diabetes is an inflammatory and oxidative disease, with an escalating global burden. Still, there is no definite treatment for diabetes or even prevention of its harmful complications. Therefore, understanding the molecular pathways associated with diabetes might help in finding a solution. p66Shc is a member of Shc family proteins, and it is considered as an oxidative stress sensor and regulator in cells. There are inconsistent data about the role of p66Shc in inducing diabetes, but accumulating evidence supports its role in the pathogenesis of diabetes-related complications, including macro and microangiopathies. There is growing hope that by understanding and targeting molecular pathways involved in this network, prevention of diabetes or its complications would be achievable. This review provides an overview about the role of p66Shc in the development of diabetes and its complications.
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Affiliation(s)
- SeyedehFatemeh Mousavi
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, Mazandaran University of Medical Sciences, Mazandaran, Iran
- USERN Office, Mazandaran University of Medical Sciences, Mazandaran, Iran
| | - Alireza Bagheri
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
| | - Noosha Samieefar
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Negar Shaterian
- Student Research Committee, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran
- USERN Office, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
- USERN Office, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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Sirtuins and Renal Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10081198. [PMID: 34439446 PMCID: PMC8388938 DOI: 10.3390/antiox10081198] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/04/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023] Open
Abstract
Renal failure is a major health problem that is increasing worldwide. To improve clinical outcomes, we need to understand the basic mechanisms of kidney disease. Aging is a risk factor for the development and progression of kidney disease. Cells develop an imbalance of oxidants and antioxidants as they age, resulting in oxidative stress and the development of kidney damage. Calorie restriction (CR) is recognized as a dietary approach that promotes longevity, reduces oxidative stress, and delays the onset of age-related diseases. Sirtuins, a type of nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylase, are considered to be anti-aging molecules, and CR induces their expression. The sirtuin family consists of seven enzymes (Sirt1–7) that are involved in processes and functions related to antioxidant and oxidative stress, such as DNA damage repair and metabolism through histone and protein deacetylation. In fact, a role for sirtuins in the regulation of antioxidants and redox substances has been suggested. Therefore, the activation of sirtuins in the kidney may represent a novel therapeutic strategy to enhancing resistance to many causative factors in kidney disease through the reduction of oxidative stress. In this review, we discuss the relationship between sirtuins and oxidative stress in renal disease.
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Feng L, Wang S, Chen F, Zhang C, Wang Q, Zhao Y, Zhang Z. Hepatic Knockdown of Endothelin Type A Receptor (ETAR) Ameliorates Hepatic Insulin Resistance and Hyperglycemia Through Suppressing p66Shc-Mediated Mitochondrial Fragmentation in High-Fat Diet-Fed Mice. Diabetes Metab Syndr Obes 2021; 14:963-981. [PMID: 33688230 PMCID: PMC7936928 DOI: 10.2147/dmso.s299570] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 02/23/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Emerging evidence from animal studies and clinical trials indicates that systemic inhibition of endothelin1 (ET1) signaling by endothelin receptor antagonists improves pathological features of diabetes and its complications. It is indicated that endothelin type A receptor (ETAR) plays a major role in ET1-mediated pathophysiological actions including diabetic pathology. However, the effects as well as the mechanistic targets of hepatic ET1/ETAR signaling inhibition on the pathology of metabolic diseases remain unclear. This study aimed to investigate the beneficial effects as well as the underlying mechanisms of hepatic ETAR knockdown on metabolism abnormalities in high-fat diet (HFD)-fed mice. METHODS Mice were fed a HFD to induce insulin resistance and metabolism abnormalities. L02 cells were treated with ET1 to assess the action of ET1/ETAR signaling in vitro. Liver-selective knockdown of ETAR was achieved by tail vein injection of adeno-associated virus 8 (AAV8). Systemic and peripheral metabolism abnormalities were determined in vivo and in vitro. Mitochondrial fragmentation was observed by transmission electron microscope (TEM) and mitoTracker red staining. RESULTS Here we provided in vivo and in vitro evidence to demonstrate that liver-selective knockdown of ETAR effectively ameliorated hepatic insulin resistance and hyperglycemia in HFD-fed mice. Mechanistically, hepatic ETAR knockdown alleviated mitochondrial fragmentation and dysfunction via inactivating 66-kDa Src homology 2 domain-containing protein (p66Shc) to recover mitochondrial dynamics, which was mediated by inhibiting protein kinase Cδ (PKCδ), in the livers of HFD-fed mice. Ultimately, hepatic ETAR knockdown attenuated mitochondria-derived oxidative stress and related liver injuries in HFD-fed mice. These ETAR knockdown-mediated actions were confirmed in ET1-treated L02 cells. CONCLUSION This study defined an ameliorative role of hepatic ETAR knockdown in HFD-induced metabolism abnormalities by alleviating p66Shc-mediated mitochondrial fragmentation and consequent oxidative stress-related disorders and indicated that hepatic ETAR knockdown may be a promising therapeutic strategy for metabolic diseases.
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Affiliation(s)
- Li Feng
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Songhua Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Feng Chen
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Cheng Zhang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Qiao Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Yuting Zhao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
| | - Zifeng Zhang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People’s Republic of China
- Correspondence: Zifeng Zhang 101 Shanghai Road, Xuzhou, Jiangsu Province, 221116, People’s Republic of ChinaTel + 86 516 83403729 Email
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Hui C, Tomilov A, Garcia C, Jiang X, Fash DM, Khdour OM, Rosso C, Filippini G, Prato M, Graham J, Hecht S, Havel P, Cortopassi G. Novel idebenone analogs block Shc's access to insulin receptor to improve insulin sensitivity. Biomed Pharmacother 2020; 132:110823. [PMID: 33045613 DOI: 10.1016/j.biopha.2020.110823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/26/2020] [Accepted: 09/26/2020] [Indexed: 10/23/2022] Open
Abstract
There has been little innovation in identifying novel insulin sensitizers. Metformin, developed in the 1920s, is still used first for most Type 2 diabetes patients. Mice with genetic reduction of p52Shc protein have improved insulin sensitivity and glucose tolerance. By high-throughput screening, idebenone was isolated as the first small molecule 'Shc Blocker'. Idebenone blocks p52Shc's access to Insulin Receptor to increase insulin sensitivity. In this work the avidity of 34 novel idebenone analogs and 3 metabolites to bind p52Shc, and to block the interaction of p52Shc with the Insulin receptor was tested. Our hypothesis was that if an idebenone analog bound and blocked p52Shc's access to insulin receptor better than idebenone, it should be a more effective insulin sensitizing agent than idebenone itself. Of 34 analogs tested, only 2 both bound p52Shc more tightly and/or blocked the p52Shc-Insulin Receptor interaction more effectively than idebenone. Of those 2 only idebenone analog #11 was a superior insulin sensitizer to idebenone. Also, the long-lasting insulin-sensitizing potency of idebenone in rodents over many hours had been puzzling, as the parent molecule degrades to metabolites within 1 h. We observed that two of the idebenone's three metabolites are insulin sensitizing almost as potently as idebenone itself, explaining the persistent insulin sensitization of this rapidly metabolized molecule. These results help to identify key SAR = structure-activity relationship requirements for more potent small molecule Shc inhibitors as Shc-targeted insulin sensitizers for type 2 diabetes.
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Affiliation(s)
- ChunKiu Hui
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - Alexey Tomilov
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - Chase Garcia
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - XiaoSong Jiang
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - David M Fash
- Center for BioEnergetics, Biodesign Institute, Arizona State University, 1001 S McAllister Ave, Tempe, AZ, 85287, USA.
| | - Omar M Khdour
- Center for BioEnergetics, Biodesign Institute, Arizona State University, 1001 S McAllister Ave, Tempe, AZ, 85287, USA.
| | - Cristian Rosso
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy.
| | - Giacomo Filippini
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy.
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014, Donostia San Sebastián, Spain; Basque Fdn Sci, Ikerbasque, Bilbao, 48013, Spain.
| | - James Graham
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - Sidney Hecht
- Center for BioEnergetics, Biodesign Institute, Arizona State University, 1001 S McAllister Ave, Tempe, AZ, 85287, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.
| | - Peter Havel
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
| | - Gino Cortopassi
- Department of Molecular Biosciences, 1089 Veterinary Medicine Dr., VM3B, UC Davis, CA, 95616, USA.
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The mystery of mitochondria-ER contact sites in physiology and pathology: A cancer perspective. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165834. [PMID: 32437958 DOI: 10.1016/j.bbadis.2020.165834] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/13/2022]
Abstract
Mitochondria-associated membranes (MAM), physical platforms that enable communication between mitochondria and the endoplasmic reticulum (ER), are enriched with many proteins and enzymes involved in several crucial cellular processes, such as calcium (Ca2+) homeostasis, lipid synthesis and trafficking, autophagy and reactive oxygen species (ROS) production. Accumulating studies indicate that tumor suppressors and oncogenes are present at these intimate contacts between mitochondria and the ER, where they influence Ca2+ flux between mitochondria and the ER or affect lipid homeostasis at MAM, consequently impacting cell metabolism and cell fate. Understanding these fundamental roles of mitochondria-ER contact sites as important domains for tumor suppressors and oncogenes can support the search for new and more precise anticancer therapies. In the present review, we summarize the current understanding of basic MAM biology, composition and function and discuss the possible role of MAM-resident oncogenes and tumor suppressors.
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Wang W, Sun W, Cheng Y, Xu Z, Cai L. Role of sirtuin-1 in diabetic nephropathy. J Mol Med (Berl) 2019; 97:291-309. [PMID: 30707256 PMCID: PMC6394539 DOI: 10.1007/s00109-019-01743-7] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/29/2018] [Accepted: 01/09/2019] [Indexed: 02/06/2023]
Abstract
Diabetic nephropathy (DN) is a research priority for scientists around the world because of its high prevalence and poor prognosis. Although several mechanisms have been shown to be involved in its pathogenesis and many useful drugs have been developed, the management of DN remains challenging. Increasing amounts of evidence show that silent information regulator 2 homolog 1 (sirtuin-1), a nicotinamide adenine dinucleotide (NAD+)–dependent protein deacetylase, plays a crucial role in the pathogenesis and development of DN. Clinical data show that gene polymorphisms of sirtuin-1 affect patient vulnerability to DN. In addition, upregulation of sirtuin-1 attenuates DN in various experimental models of diabetes and in renal cells, including podocytes, mesangial cells, and renal proximal tubular cells, incubated with high concentrations of glucose or advanced glycation end products. Mechanistically, sirtuin-1 has its renoprotective effects by modulating metabolic homeostasis and autophagy, resisting apoptosis and oxidative stress, and inhibiting inflammation through deacetylation of histones and the transcription factors p53, forkhead box group O, nuclear factor-κB, hypoxia-inducible factor-1α, and others. Furthermore, some microRNAs have been implicated in the progression of DN because they target sirtuin-1 mRNA. Several synthetic drugs and natural compounds have been identified that upregulate the expression and activity of sirtuin-1, which protects against DN. The present review will summarize advances in knowledge regarding the role of sirtuin-1 in the pathogenesis of DN. The available evidence implies that sirtuin-1 has great potential as a clinical target for the prevention and treatment of diabetes.
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Affiliation(s)
- Wanning Wang
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
- Pediatric Research Institute, Department of Pediatrics, The University of Louisville School of Medicine, Louisville, KY 40292 USA
| | - Weixia Sun
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Yanli Cheng
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Zhonggao Xu
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics, The University of Louisville School of Medicine, Louisville, KY 40292 USA
- Departments of Radiation Oncology, Pharmacology and Toxicology, The University of Louisville School of Medicine, 570 S. Preston Str., Baxter I, Suite 304F, Louisville, KY 40292 USA
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Qu B, Gong K, Yang H, Li Y, Jiang T, Zeng Z, Cao Z, Pan X. SIRT1 suppresses high glucose and palmitate-induced osteoclast differentiation via deacetylating p66Shc. Mol Cell Endocrinol 2018; 474:97-104. [PMID: 29486220 DOI: 10.1016/j.mce.2018.02.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 01/11/2023]
Abstract
Findings concerning the role of diabetes mellitus (DM) in osteoclast differentiation are contradictory in vivo and in vitro. Sirtuin 1 (SIRT1) can inhibit RANKL-induced osteoclastogenesis and deacetylate p66Shc suppress its phosphorylation in high glucose (HG)-stimulated human umbilical vein endothelial cells. This study aimed to investigate the role and mechanism of SIRT1 in DM-related osteoclast differentiation. Osteoclast precursors were cultured with HG and palmitate (PA), with or without resveratrol/sirtinol. TRAP staining was used to evaluate osteoclast formation. The expression of SIRT1, RANK, RANKL, OPG, NFATc1, TRAP, c-fos, p66Shc, phospho-p66Shc (S36), phospho-NF-κBp65 (p-p65), and IκB was determined by real-time PCR or western blotting. Lysine acetylation of p66Shc was assayed by immunoprecipitation. Reactive oxygen species (ROS) production was analyzed by DCFH-DA fluorescence. p66Shc siRNA and PDTC were used to confirm the mechanism of SIRT1 in osteoclastogenesis. We found HG and PA enhanced osteoclast differentiation, decreased SIRT1 and OPG expression, and increased levels of RANK, RANKL, NFATc1, TRAP, and c-fos. Upregulation of SIRT1 by resveratrol inhibited HG- and PA-induced osteoclast differentiation, whereas sirtinol further enhanced it. Resveratrol suppressed lysine acetylation and S36 phosphorylation of p66Shc, ROS production, and NF-κB activation induced by HG and PA, while sirtinol boosted these processes. p66Shc siRNA abrogated HG- and PA-induced ROS production and NF-κB activation. In addition, p66Shc siRNA and PDTC greatly suppressed the expression of RANK and RANKL induced by HG and PA. In conclusion, this study confirms the role of DM in osteoclast differentiation in vitro. SIRT1 suppresses HG- and PA-induced osteoclast differentiation via p66Shc/ROS/NF-κB signaling.
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Affiliation(s)
- Bo Qu
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China; Center for Disease Control and Prevention of the Chengdu Military Command, Chengdu 610000, Sichuan Province, China
| | - Kai Gong
- Department of Orthopaedics, Chengdu Military General Hospital, Chengdu 610000, Sichuan Province, China
| | - Hongsheng Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Yugang Li
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Tao Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Zhimou Zeng
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Zongrui Cao
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Xianming Pan
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China.
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Srivastava SP, Li J, Kitada M, Fujita H, Yamada Y, Goodwin JE, Kanasaki K, Koya D. SIRT3 deficiency leads to induction of abnormal glycolysis in diabetic kidney with fibrosis. Cell Death Dis 2018; 9:997. [PMID: 30250024 PMCID: PMC6155322 DOI: 10.1038/s41419-018-1057-0] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 07/03/2018] [Accepted: 08/02/2018] [Indexed: 12/26/2022]
Abstract
The regulation of aberrant glucose metabolism in diabetes associated-kidney fibrosis is not well known. In this study we found the suppression of SIRT3 protein level in diabetic kidney, displays responsibility in fibrogenic programming associated with aberrant glycolysis and such abnormal glycolysis is the therapeutic target in diabetes associated-kidney fibrosis. When analyzing different strains of streptozotocin-induced diabetic mice model (fibrotic model: CD-1, less fibrotic model: C57Bl6), we found SIRT3 suppression was associated with kidney fibrosis in fibrotic CD-1; further SIRT3 suppression by systemic administration of SIRT3 siRNA in the diabetic mice, showed profound fibrogenic phenotype in the kidney. Such suppression in SIRT3 was associated with the induction of transforming growth factor-β (TGF-β)/smad signaling, higher level of HIF1α accumulation and PKM2 dimer formation; these alterations subsequently led to abnormal glycolysis and linked abnormal mesenchymal transformations in vivo and in vitro. Inhibition of such aberrant glycolysis suppressed fibrogenic programming and restored SIRT3 level as well. Such aberrant glycolysis was confirmed in the KK/Ta-Ins2Akita mouse, the mouse model of progressive diabetic kidney disease. These data demonstrate that SIRT3 deficiency promotes abnormal glycolysis which is responsible for the fibrogenic pathway in diabetic kidney. Restoration of SIRT3 could be an alternative strategy in combating diabetes associated-kidney fibrosis via inhibition of aberrant glycolysis.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan.,Department of Pediatrics (Nephrology) Yale University School of Medicine, New Haven, CT, 06520, USA
| | - Jinpeng Li
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan
| | - Munehiro Kitada
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan.,Division of Anticipatory Molecular Food Science and Technology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan
| | - Hiroki Fujita
- Department of Endocrinology, Diabetes and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, 010-8543, Japan
| | - Yuichiro Yamada
- Department of Endocrinology, Diabetes and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, 010-8543, Japan
| | - Julie E Goodwin
- Department of Pediatrics (Nephrology) Yale University School of Medicine, New Haven, CT, 06520, USA
| | - Keizo Kanasaki
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan. .,Division of Anticipatory Molecular Food Science and Technology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan.
| | - Daisuke Koya
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan. .,Division of Anticipatory Molecular Food Science and Technology, Kanazawa Medical University, Uchinada, Ishikawa, 920-0293, Japan.
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Downregulation of lncRNA MALAT1 contributes to renal functional improvement after duodenal-jejunal bypass in a diabetic rat model. J Physiol Biochem 2018; 74:431-439. [DOI: 10.1007/s13105-018-0636-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 05/01/2018] [Indexed: 02/07/2023]
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p66Shc Mediates Mitochondrial Dysfunction Dependent on PKC Activation in Airway Epithelial Cells Induced by Cigarette Smoke. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5837123. [PMID: 29849902 PMCID: PMC5925171 DOI: 10.1155/2018/5837123] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 02/08/2018] [Accepted: 02/28/2018] [Indexed: 12/02/2022]
Abstract
Airway epithelial mitochondrial injury plays a critical role in the pathogenesis of chronic obstructive pulmonary disease (COPD). The p66Shc adaptor protein is a newly recognized mediator of mitochondrial dysfunction. However, little is known about the effect of p66Shc on airway epithelial damage in the development of COPD. The aim of the present study is to investigate the roles of p66Shc and its upstream regulators in the mitochondrial injury of airway epithelial cells (Beas-2b) induced by cigarette smoke extract (CSE). Our present study revealed that CSE increased p66Shc expression and its mitochondrial translocation in concentration and time-dependent manners in airway epithelial cells. And p66Shc siRNA significantly attenuated mitochondrial dysfunction and cell injury when airway epithelial cells were stimulated with 7.5% CSE. The total and phosphorylated expression of PKCβ and PKCδ was significantly increased associated with mitochondrial dysfunction and cell injury when airway epithelial cells were exposed to 7.5% CSE. The pretreatments with pharmacological inhibitors of PKCβ and PKCδ could notably suppress p66Shc phosphorylation and its mitochondrial translocation and protect the mitochondria and cells against oxidative damage when airway epithelial cells were incubated with 7.5% CSE. These data suggest that a novel PKCβ/δ-p66Shc signaling pathway may be involved in the pathogenesis of COPD and other oxidative stress-associated pulmonary diseases and provide a potential therapeutic target for these diseases.
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Yang S, Zhao L, Han Y, Liu Y, Chen C, Zhan M, Xiong X, Zhu X, Xiao L, Hu C, Liu F, Zhou Z, Kanwar YS, Sun L. Probucol ameliorates renal injury in diabetic nephropathy by inhibiting the expression of the redox enzyme p66Shc. Redox Biol 2017; 13:482-497. [PMID: 28728079 PMCID: PMC5514499 DOI: 10.1016/j.redox.2017.07.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 06/28/2017] [Accepted: 07/02/2017] [Indexed: 12/19/2022] Open
Abstract
AIMS Probucol is an anti-hyperlipidemic agent and a potent antioxidant drug that can delay progression of diabetic nephropathy (DN) and reverses renal oxidative stress in diabetic animal models; however, the mechanisms underlying these effects remain unclear. p66Shc is a newly recognized mediator of mitochondrial ROS production in renal cells under high-glucose (HG) ambience. We previously showed that p66Shc can serve as a biomarker for renal oxidative injury in DN patients and that p66Shc up-regulation is correlated with renal damage in vivo and in vitro. Here, we determined whether probucol ameliorates renal injury in DN by inhibiting p66Shc expression. RESULTS We found that the expression of SIRT1, Ac-H3 and p66Shc in kidneys of DN patients was altered. Also, probucol reduced the levels of serum creatinine, urine protein and LDL-c and attenuated renal oxidative injury and fibrosis in STZ induced diabetic mice. In addition, probucol reversed p-AMPK, SIRT1, Ac-H3 and p66Shc expression. Correlation analyses showed that p66Shc expression was correlated with p-AMPK and Sirt1 expression and severity of renal injury. In vitro pretreatment of HK-2 cells with p-AMPK and SIRT1 siRNA negated the beneficial effects of probucol. Furthermore, we noted that probucol activates p-AMPK and Sirt1 and inhibits p66shc mRNA transcription by facilitating the binding of Sirt1 to the p66Shc promoter and modulation of Ac-H3 expression in HK-2 cells under HG ambience. INNOVATION AND CONCLUSION Our results suggest for the first time that probucol ameliorates renal damage in DN by epigenetically suppressing p66Shc expression via the AMPK-SIRT1-AcH3 pathway.
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Affiliation(s)
- Shikun Yang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China; Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Zhao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Yachun Han
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Yu Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Chao Chen
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Ming Zhan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Xiaofen Xiong
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Xuejing Zhu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Li Xiao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Chun Hu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Fuyou Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China
| | - Zhiguang Zhou
- Diabetes Center, and Institute of Metabolism and Endocrinology, Key Laboratory of Diabetes Immunology, Ministry of Education, China
| | - Yashpal S Kanwar
- Department of Pathology & Medicine, Northwestern University, Chicago, USA
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan 410011, China.
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Di Lisa F, Giorgio M, Ferdinandy P, Schulz R. New aspects of p66Shc in ischaemia reperfusion injury and other cardiovascular diseases. Br J Pharmacol 2017; 174:1690-1703. [PMID: 26990284 PMCID: PMC5446581 DOI: 10.1111/bph.13478] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/29/2016] [Accepted: 03/09/2016] [Indexed: 12/13/2022] Open
Abstract
Although reactive oxygen species (ROS) act as crucial factors in the onset and progression of a wide array of diseases, they are also involved in numerous signalling pathways related to cell metabolism, growth and survival. ROS are produced at various cellular sites, and it is generally agreed that mitochondria generate the largest amount, especially those in cardiomyocytes. However, the identification of the most relevant sites within mitochondria, the interaction among the various sources, and the events responsible for the increase in ROS formation under pathological conditions are still highly debated, and far from being clarified. Here, we review the information linking the adaptor protein p66Shc with cardiac injury induced by ischaemia and reperfusion (I/R), including the contribution of risk factors, such as metabolic syndrome and ageing. In response to several stimuli, p66Shc migrates into mitochondria where it catalyses electron transfer from cytochrome c to oxygen resulting in hydrogen peroxide formation. Deletion of p66Shc has been shown to reduce I/R injury as well as vascular abnormalities associated with diabetes and ageing. However, p66Shc-induced ROS formation is also involved in insulin signalling and might contribute to self-endogenous defenses against mild I/R injury. In addition to its role in physiological and pathological conditions, we discuss compounds and conditions that can modulate the expression and activity of p66Shc. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- Fabio Di Lisa
- Department of Biomedical Sciences and CNR Neuroscience InstituteUniversity of PadovaPadovaItaly
| | - Marco Giorgio
- Department of Experimental OncologyInstitute of OncologyMilanItaly
| | - Peter Ferdinandy
- Department of Pharmacology and PharmacotherapySemmelweis UniversityBudapestHungary
- Pharmahungary GroupSzegedHungary
| | - Rainer Schulz
- Institut für PhysiologieJustus‐Liebig Universität GiessenGiessenGermany
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Inhibition of p66Shc-mediated mitochondrial apoptosis via targeting prolyl-isomerase Pin1 attenuates intestinal ischemia/reperfusion injury in rats. Clin Sci (Lond) 2017; 131:759-773. [PMID: 28232511 DOI: 10.1042/cs20160799] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 12/11/2022]
Abstract
Intestinal epithelial oxidative stress and apoptosis constitute key pathogenic mechanisms underlying intestinal ischemia/reperfusion (I/R) injury. We previously reported that the adaptor 66 kDa isoform of the adaptor molecule ShcA (p66Shc)-mediated pro-apoptotic pathway was activated after intestinal I/R. However, the upstream regulators of the p66Shc pathway involved in intestinal I/R remain to be fully identified. Here, we focused on the role of a prolyl-isomerase, peptidyl–prolyl cis–trans isomerase (Pin1), in the regulation of p66Shc activity during intestinal I/R. Intestinal I/R was induced in rats by superior mesenteric artery (SMA) occlusion. Juglone (Pin1 inhibitor) or vehicle was injected intraperitoneally before I/R challenge. Caco-2 cells were exposed to hypoxia/reoxygenation (H/R) in vitro to simulate an in vivo I/R model. We found that p66Shc was significantly up-regulated in the I/R intestine and that this up-regulation resulted in the accumulation of intestinal mitochondrial reactive oxygen species (ROS) and massive epithelial apoptosis. Moreover, intestinal I/R resulted in elevated protein expression and enzyme activity of Pin1 as well as increased interaction between Pin1 and p66Shc. This Pin1 activation was responsible for the translocation of p66Shc to the mitochondria during intestinal I/R, as Pin1 suppression by juglone or siRNA markedly blunted p66Shc mitochondrial translocation and the subsequent ROS generation and cellular apoptosis. Additionally, Pin1 inhibition alleviated gut damage and secondary lung injury, leading to improvement of survival after I/R. Collectively, our findings demonstrate for the first time that Pin1 inhibition protects against intestinal I/R injury, which could be partially attributed to the p66Shc-mediated mitochondrial apoptosis pathway. This may represent a novel prophylactic target for intestinal I/R injury.
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Long noncoding RNA MALAT1 regulates renal tubular epithelial pyroptosis by modulated miR-23c targeting of ELAVL1 in diabetic nephropathy. Exp Cell Res 2017; 350:327-335. [DOI: 10.1016/j.yexcr.2016.12.006] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/23/2016] [Accepted: 12/07/2016] [Indexed: 11/22/2022]
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Xu X, Zhu X, Ma M, Han Y, Hu C, Yuan S, Yang Y, Xiao L, Liu F, Kanwar YS, Sun L. p66Shc: A novel biomarker of tubular oxidative injury in patients with diabetic nephropathy. Sci Rep 2016; 6:29302. [PMID: 27377870 PMCID: PMC4932503 DOI: 10.1038/srep29302] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 06/17/2016] [Indexed: 12/15/2022] Open
Abstract
Increased p66Shc expression has been associated with diabetic nephropathy (DN). However, whether p66Shc can serve as a potential biomarker for tubular oxidative injury in DN is unknown. We measured the expression of p66Shc in peripheral blood monocytes (PBMs) and renal biopsy tissues from DN patients and then analysed the relationship between p66Shc expression and the clinical characteristics of patients with DN. Patients were divided into 4 groups (class IIa, class IIb, class III and the control group). qPCR, Western blotting and immunohistochemistry were performed. The results showed that both p66Shc and p-p66Shc expression significantly increased in PBMs and kidney tissues of DN patients. Moreover, Spearman’s correlation and multiple regression analyses were carried out. A positive relationship between the p66Shc expression and oxidative stress was found. p66Shc and oxidative stress were significant predictors of the degree of tubular damage. In addition, p66Shc expression was positively correlated with the concentrations of β-NAG, UACR and 8-OHdG, low-density lipoprotein and blood glucose levels, and duration of diabetes in patients with DN from class IIa to class III. These data indicated that increased expression of p66Shc may serve as a therapeutic target and a novel biomarker of DN.
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Affiliation(s)
- Xiaoxuan Xu
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingming Ma
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yachun Han
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chun Hu
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuguang Yuan
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuan Yang
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Xiao
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yashpal S Kanwar
- Departments of Pathology &Medicine, Northwestern University, Chicago, USA
| | - Lin Sun
- Department of Nephrology, 2nd Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wu H, Shi Y, Deng X, Su Y, Du C, Wei J, Ren Y, Wu M, Hou Y, Duan H. Inhibition of c-Src/p38 MAPK pathway ameliorates renal tubular epithelial cells apoptosis in db/db mice. Mol Cell Endocrinol 2015; 417:27-35. [PMID: 26363223 DOI: 10.1016/j.mce.2015.09.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 08/05/2015] [Accepted: 09/08/2015] [Indexed: 01/08/2023]
Abstract
Renal tubular epithelial cells (RTEC) apoptosis, which plays a key role in the pathogenesis and progression of diabetic nephropathy (DN), is believed to be contributive to the hyperglycemia-induced kidney failure, though the exact mechanisms remain elusive. In this study, we investigated how inhibition of c-Src/p38 MAPK pathway would affect RTEC apoptosis. The c-Src inhibitor PP2 i.p. administered every other day for 8 weeks to diabetic db/db mice significantly reduced their kidney weights, daily urinary volumes, blood glucose, blood urea nitrogen, serum creatinine, triglyceride and urine albumin excretion, whereas deactivation of c-Src and p38 MAPK were also observed, along with decreases in both Bax/Bcl-2 ratio and cleaved caspase-3 level in the kidneys. In vitro, exposure of HK-2 cells (a human RTEC line), to high glucose (HG) promoted phosphorylation of c-Src and p38 MAPK, and subsequently, as revealed by western blotting, TUNEL assay and flow cytometry, increased cell death, which can be inhibited by PP2. Especially, a specific p38 MAPK inhibitor, SB203580, that both attenuated HG-induced c-Src activation and abrogated the expression of PPARγ and CHOP, also reduced apoptosis. Taken together, PP2 inhibits c-Src and therefore reduces apoptosis in RTEC, which at least in part, is due to suppressed p38 MAPK activation in diabetic kidney.
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Affiliation(s)
- Haijiang Wu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Yonghong Shi
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Xinna Deng
- Department of Oncology & Immunotherapy, Hebei General Hospital, Shijiazhuang, China
| | - Ye Su
- Mathew Mailing Centre for Translational Transplantation Studies, Lawson Health Research Institute, London Health Sciences Centre, Department of Medicine, and Pathology, University of Western Ontario, London, Ontario, Canada
| | - Chunyang Du
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Jinying Wei
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Yunzhuo Ren
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Ming Wu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Yanjuan Hou
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China
| | - Huijun Duan
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhufang, China.
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Zhou L, Xu DY, Sha WG, Shen L, Lu GY, Yin X. Long non-coding MIAT mediates high glucose-induced renal tubular epithelial injury. Biochem Biophys Res Commun 2015; 468:726-32. [PMID: 26551455 DOI: 10.1016/j.bbrc.2015.11.023] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/03/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Long non-coding RNAs (lncRNAs) constitute a novel class of non-coding RNAs that take part in occurrence and development of diabetes complication via regulating gene expression. However, litter is known about lncRNAs in the setting of diabetes induced nephropathy. The aim of this study was to examine whether lncRNA-myocardial infarction-associated transcript (MIAT) is involved in diabetes induced renal tubules injury. METHODS Adult Wister rats were randomly assigned to receive intraperitoneal STZ (65 mg/kg) to induce diabetes. Rats treated with equal volume of citrate buffer were as control. Renal function was evaluated by analysis of serum creatinine and blood urea nitrogen (BUN) every four weeks after STZ administration. Also tubules of all rats were collected for determination of MIAT and Nrf2 level at the corresponding phase. The in vitro high glucose-triggered human renal tubular epithelial cell line (HK-2) was used to explore the mechanism underling MIAT regulated high glucose-induced tubular damage. RESULTS In diabetic rats, MIAT showed the lower level and its expression is negatively correlated with serum creatinine and BUN. Consistent with diabetic rat, exposed to high glucose, HK-2 cells expressed lower level of MIAT and Nrf2, and also showed reduction in cell viability. By pcDNA-MIAT plasmid transfection, we observed that MIAT overexpression reversed inhibitory action of Nrf2 expression by high glucose. Moreover, the data of RNA pull-down and RIP showed that MIAT controlled Nrf2 cellular through enhancing Nrf2 stability, which was confirmed by CHX and MG132 administration. Inhibitory effect of cell viability by silencing MIAT was also reversed by Nrf2 overexpression. CONCLUSION In summary, our data suggested that MIAT/Nrf2 served as an important signaling pathway for high glucose induced renal tubular epithelial injury.
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Affiliation(s)
- Ling Zhou
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - De-yu Xu
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Wen-gang Sha
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Lei Shen
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Guo-yuan Lu
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Xia Yin
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
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Wieckowski MR, Deus CM, Couto R, Oparka M, Lebiedzińska‐Arciszewska M, Duszyński J, Oliveira PJ. Measuring p66Shc Signaling Pathway Activation and Mitochondrial Translocation in Cultured Cells. ACTA ACUST UNITED AC 2015; 66:25.6.1-25.6.21. [DOI: 10.1002/0471140856.tx2506s66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Mariusz R. Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | - Cláudia M. Deus
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
| | - Renata Couto
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
| | - Monika Oparka
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | | | - Jerzy Duszyński
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | - Paulo J. Oliveira
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
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Lindblom R, Higgins G, Coughlan M, de Haan JB. Targeting Mitochondria and Reactive Oxygen Species-Driven Pathogenesis in Diabetic Nephropathy. Rev Diabet Stud 2015; 12:134-56. [PMID: 26676666 DOI: 10.1900/rds.2015.12.134] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Diabetic kidney disease is one of the major microvascular complications of both type 1 and type 2 diabetes mellitus. Approximately 30% of patients with diabetes experience renal complications. Current clinical therapies can only mitigate the symptoms and delay the progression to end-stage renal disease, but not prevent or reverse it. Oxidative stress is an important player in the pathogenesis of diabetic nephropathy. The activity of reactive oxygen and nitrogen species (ROS/NS), which are by-products of the diabetic milieu, has been found to correlate with pathological changes observed in the diabetic kidney. However, many clinical studies have failed to establish that antioxidant therapy is renoprotective. The discovery that increased ROS/NS activity is linked to mitochondrial dysfunction, endoplasmic reticulum stress, inflammation, cellular senescence, and cell death calls for a refined approach to antioxidant therapy. It is becoming clear that mitochondria play a key role in the generation of ROS/NS and their consequences on the cellular pathways involved in apoptotic cell death in the diabetic kidney. Oxidative stress has also been associated with necrosis via induction of mitochondrial permeability transition. This review highlights the importance of mitochondria in regulating redox balance, modulating cellular responses to oxidative stress, and influencing cell death pathways in diabetic kidney disease. ROS/NS-mediated cellular dysfunction corresponds with progressive disease in the diabetic kidney, and consequently represents an important clinical target. Based on this consideration, this review also examines current therapeutic interventions to prevent ROS/NS-derived injury in the diabetic kidney. These interventions, mainly aimed at reducing or preventing mitochondrial-generated oxidative stress, improving mitochondrial antioxidant defense, and maintaining mitochondrial integrity, may deliver alternative approaches to halt or prevent diabetic kidney disease.
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Affiliation(s)
- Runa Lindblom
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Gavin Higgins
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Melinda Coughlan
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Judy B de Haan
- Oxidative Stress Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
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