51
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Yekta R, Dehghan G, Rashtbari S, Sadeghi L, Baradaran B, Sheibani N, Moosavi-Movahedi AA. The impact of water molecules on binding affinity of the anti-diabetic thiazolidinediones for catalase: Kinetic and mechanistic approaches. Arch Biochem Biophys 2019; 664:110-116. [PMID: 30738039 DOI: 10.1016/j.abb.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/03/2019] [Accepted: 02/05/2019] [Indexed: 01/29/2023]
Abstract
Water molecules play a vital role in efficient drug binding to its target. Thiazolidinediones (TZDs), a class of anti-diabetic drugs, are widely used for treatment of type 2 diabetes mellitus. In the present study, the possible contribution of water molecules to the binding of TZDs to catalase, a potential target in the liver, was investigated by different experimental and theoretical methods. These studies indicated that TZDs could significantly improve the catalase catalytic function with a significant contribution from water molecules. As a probe for the differential number of released water molecules during the catalase transition from E to E* states, the activity of TZDs-catalase complexes was demonstrated to be mainly dependent on water activity. However, free catalase decomposed the substrate more independently. In addition, the spectrofluorimetry studies showed that the binding of TZDs to catalase needed the release of water molecules from the enzyme's binding pocket. The thermodynamic studies indicated that the binding enthalpy and entropy of TZDs for catalase were decreased with lower water activity. The favorable process contributes to release of water molecules from the binding pocket through the formation of hydrophobic interactions between catalase and TZDs in an enthalpic manner. Molecular docking simulations confirmed that the depletion of water molecules from the binding cavity is essential for effective interactions between TZDs and catalase.
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Affiliation(s)
- Reza Yekta
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Samaneh Rashtbari
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Leila Sadeghi
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, Cell and Regenerative Biology, and Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Ali A Moosavi-Movahedi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran; Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran
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52
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Pharmacological strategies to lower crosstalk between nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and mitochondria. Biomed Pharmacother 2019; 111:1478-1498. [DOI: 10.1016/j.biopha.2018.11.128] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/23/2018] [Accepted: 11/27/2018] [Indexed: 02/07/2023] Open
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53
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Na J, Choi SA, Khan A, Huh JY, Piao L, Hwang I, Ha H, Park YH. Integrative Omics Reveals Metabolic and Transcriptomic Alteration of Nonalcoholic Fatty Liver Disease in Catalase Knockout Mice. Biomol Ther (Seoul) 2019; 27:134-144. [PMID: 30630288 PMCID: PMC6430223 DOI: 10.4062/biomolther.2018.175] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/18/2018] [Accepted: 12/17/2018] [Indexed: 12/17/2022] Open
Abstract
The prevalence of nonalcoholic fatty liver disease (NAFLD) has increased with the incidence of obesity; however, the underlying mechanisms are unknown. In this study, high-resolution metabolomics (HRM) along with transcriptomics were applied on animal models to draw a mechanistic insight of NAFLD. Wild type (WT) and catalase knockout (CKO) mice were fed with normal fat diet (NFD) or high fat diet (HFD) to identify the changes in metabolic and transcriptomic profiles caused by catalase gene deletion in correspondence with HFD. Integrated omics analysis revealed that cholic acid and 3β, 7α-dihydroxy-5-cholestenoate along with cyp7b1 gene involved in primary bile acid biosynthesis were strongly affected by HFD. The analysis also showed that CKO significantly changed all-trans-5,6-epoxy-retinoic acid or all-trans-4-hydroxy-retinoic acid and all-trans-4-oxo-retinoic acid along with cyp3a41b gene in retinol metabolism, and α/γ-linolenic acid, eicosapentaenoic acid and thromboxane A2 along with ptgs1 and tbxas1 genes in linolenic acid metabolism. Our results suggest that dysregulated primary bile acid biosynthesis may contribute to liver steatohepatitis, while up-regulated retinol metabolism and linolenic acid metabolism may have contributed to oxidative stress and inflammatory phenomena in our NAFLD model created using CKO mice fed with HFD.
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Affiliation(s)
- Jinhyuk Na
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Soo An Choi
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Adnan Khan
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Joo Young Huh
- College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Lingjuan Piao
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Inah Hwang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Youngja H Park
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
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54
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Han P, Yuan C, Wang Y, Wang M, Weng W, Zhan H, Yu X, Wang T, Li Y, Yi W, Shao M, Li S, Yi T, Sun H. Niclosamide ethanolamine protects kidney in adriamycin nephropathy by regulating mitochondrial redox balance. Am J Transl Res 2019; 11:855-864. [PMID: 30899385 PMCID: PMC6413276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Chronic kidney disease (CKD) is commonly characterized by proteinuria and leads to progressive glomerulosclerosis and tubulointerstitial fibrosis. Accumulating evidence implicates mitochondrial dysfunction including reactive oxygen species (ROS) overproduction in the pathogenesis of CKD. Mitochondrial function and ROS production are regulated by mitochondrial uncoupling. Niclosamide ethanolamine salt (NEN) is a mild mitochondrial uncoupler, which reduces urinary albumin excretion in mice with diabetic kidney disease. However, its role in nondiabetic kidney disease has not been investigated. Here we show that NEN exerts renoprotective effects in adriamycin induced nondiabetic kidney disease. It reduces urinary protein excretion, restores podocyte function, ameliorates renal pathological injury, and decreases the excretion of the urinary tubular injury biomarkers NGAL and Kim-1. Specifically, NEN uncouples isolated kidney mitochondria, and dose-dependently decreases the renal production and urinary excretion of H2O2. Moreover, NEN increases catalase and PGC-1α expression, which might accelerate H2O2 scavenging. The results of this study provide the first evidence that NEN protects kidney in nondiabetic kidney disease by regulating redox balance.
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Affiliation(s)
- Pengxun Han
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Changjian Yuan
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Yao Wang
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Menghua Wang
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Wenci Weng
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Hongyue Zhan
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Xuewen Yu
- Department of Pathology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Taifen Wang
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Yuyan Li
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Wuyong Yi
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Mumin Shao
- Department of Pathology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Shunmin Li
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
| | - Tiegang Yi
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
- Shenzhen Key Laboratory of Hospital Chinese Medicine PreparationShenzhen, Guangdong, China
| | - Huili Sun
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen, Guangdong, China
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55
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Jo DS, Cho DH. Peroxisomal dysfunction in neurodegenerative diseases. Arch Pharm Res 2019; 42:393-406. [PMID: 30739266 DOI: 10.1007/s12272-019-01131-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/03/2019] [Indexed: 01/06/2023]
Abstract
Peroxisomes and their (patho-)physiological importance in heath and disease have attracted increasing interest during last few decades. Together with mitochondria, peroxisomes comprise key metabolic platforms for oxidation of various fatty acids and redox regulation. In addition, peroxisomes contribute to bile acid, cholesterol, and plasmalogen biosynthesis. The importance of functional peroxisomes for cellular metabolism is demonstrated by the marked brain and systemic organ abnormalities occuring in peroxisome biogenesis disorders and peroxisomal enzyme deficiencies. Current evidences indicate that peroxisomal function is declined with aging, with peroxisomal dysfunction being linked to early onset of multiple age-related diseases including neurodegenerative diseases. Herein, we review recent progress toward understanding the physiological roles and pathological implications of peroxisomal dysfunctions, focusing on neurodegenerative disease.
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Affiliation(s)
- Doo Sin Jo
- School of Life Sciences, Kyungpook National University, 80 Daehakro Bukgu, Daegu, 41566, Republic of Korea
| | - Dong-Hyung Cho
- School of Life Sciences, Kyungpook National University, 80 Daehakro Bukgu, Daegu, 41566, Republic of Korea.
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56
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Hwang I, Uddin MJ, Lee G, Jiang S, Pak ES, Ha H. Peroxiredoxin 3 deficiency accelerates chronic kidney injury in mice through interactions between macrophages and tubular epithelial cells. Free Radic Biol Med 2019; 131:162-172. [PMID: 30529270 DOI: 10.1016/j.freeradbiomed.2018.12.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 12/03/2018] [Indexed: 12/22/2022]
Abstract
Chronic kidney disease (CKD) has become epidemic worldwide. Mitochondrial reactive oxygen species (ROS)-induced oxidative stress is an important mediator of CKD, and Prx3 plays a critical role in maintenance of mitochondrial ROS. The present study examined the role of Prx3 in the context of fibrosis, a common feature of CKD, using Prx3 KO mice under obstructive and diabetic stress. Prx3 deficiency accelerated fibrosis and inflammation accompanied by mitochondrial oxidative stress in obstructed and diabetic kidneys as well as in proximal tubular epithelial (mProx) cells. In addition, Prx3 deficiency induced Raw264.7 macrophages activation, leading to upregulation of proinflammatory cytokines. Conditioned media from LPS-stimulated Prx3 deficient macrophages accelerated proinflammatory and profibrotic cytokines in mProx cells. Interestingly, Prx3 deficiency induced most inflammatory and fibrotic cytokines at basal condition in both tissues and cells. Taken together, these results demonstrate that Prx3 deficiency can accelerate CKD through interactions between macrophages and tubular epithelial cells.
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MESH Headings
- Animals
- Arginase/genetics
- Arginase/metabolism
- Cell Communication
- Chemokine CCL2/genetics
- Chemokine CCL2/metabolism
- Culture Media, Conditioned/pharmacology
- Cyclooxygenase 2/genetics
- Cyclooxygenase 2/metabolism
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Fibronectins/genetics
- Fibronectins/metabolism
- Fibrosis
- Gene Expression Regulation
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Interleukin-10/genetics
- Interleukin-10/metabolism
- Interleukin-6/genetics
- Interleukin-6/metabolism
- Kidney Tubules/drug effects
- Kidney Tubules/metabolism
- Kidney Tubules/pathology
- Macrophage Activation/drug effects
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria/metabolism
- Mitochondria/pathology
- Primary Cell Culture
- RAW 264.7 Cells
- Reactive Oxygen Species/metabolism
- Renal Insufficiency, Chronic/chemically induced
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/metabolism
- Renal Insufficiency, Chronic/pathology
- Signal Transduction
- Streptozocin
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Affiliation(s)
- Inah Hwang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Gayoung Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Songling Jiang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Eun Seon Pak
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea.
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57
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Formononetin attenuates kidney damage in type 2 diabetic rats. Life Sci 2019; 219:109-121. [PMID: 30641085 DOI: 10.1016/j.lfs.2019.01.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 01/02/2019] [Accepted: 01/09/2019] [Indexed: 12/21/2022]
Abstract
AIM Diabetic nephropathy is the commonly developed complication of vasculature in type 2 diabetic patients. Chronic hyperglycemia leads to nephropathy in diabetics because of the formation of excessive reactive oxygen species and advanced glycation end products which is reflected in the form of glomerulosclerosis, tubular atrophy and interstitial fibrosis. As per the various reports reduction in SIRT1 expression in kidney tissue is key factor in the development of nephropathy in diabetes because its reduction in tissue is linked with excessive formation of ROS. Formononetin is a polyphenolic compound reported for its effect on SIRT1 and ROS. MAIN METHODS Type 2 diabetes was induced in rats by diet modification using high fat diet for fifteen days prior to streptozotocin regimen (35 mg/kg, i.p.). Treatment of formononetin was started after confirmation of diabetes and continued for 16 weeks. Formononetin was administered orally to the diabetic animals at the dose of 10. 20 and 40 mg/kg. KEY FINDINGS Formononetin treatment for 16 week was able to control hyperglycemia and insulin resistance in diabetic animals. It has also been reduced triglyceride and cholesterol in blood. Formononetin treatment reduced blood concentration of creatinine, blood urea nitrogen and increased albumin concentration. Formononetin treatment also enhanced creatinine clearance in diabetic animals. Oxidative stress burden was also reduced significantly after formononetin treatment along with increased SIRT1 expression in kidney tissues of diabetic animals. SIGNIFICANCE Formononetin is a potential molecule which increases the expression of SIRT1 in kidney tissue of diabetic. Thus formononetin is an effective molecule to control nephropathy in type 2 diabetes mellitus.
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58
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Fransen M, Lismont C. Redox Signaling from and to Peroxisomes: Progress, Challenges, and Prospects. Antioxid Redox Signal 2019; 30:95-112. [PMID: 29433327 DOI: 10.1089/ars.2018.7515] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Peroxisomes are organelles that are best known for their role in cellular lipid and hydrogen peroxide (H2O2) metabolism. Emerging evidence suggests that these organelles serve as guardians and modulators of cellular redox balance, and that alterations in their redox metabolism may contribute to aging and the development of chronic diseases such as neurodegeneration, diabetes, and cancer. Recent Advances: H2O2 is an important signaling messenger that controls many cellular processes by modulating protein activity through cysteine oxidation. Somewhat surprisingly, the potential involvement of peroxisomes in H2O2-mediated signaling processes has been overlooked for a long time. However, recent advances in the development of live-cell approaches to monitor and modulate spatiotemporal fluxes in redox species at the subcellular level have opened up new avenues for research in redox biology and boosted interest in the concept of peroxisomes as redox signaling platforms. CRITICAL ISSUES This review first introduces the reader to what is known about the role of peroxisomes in cellular H2O2 production and clearance, with a focus on mammalian cells. Next, it briefly describes the benefits and drawbacks of current strategies used to investigate the complex interplay between peroxisome metabolism and cellular redox state. Furthermore, it integrates and critically evaluates literature dealing with the interrelationship between peroxisomal redox metabolism, cell signaling, and human disease. FUTURE DIRECTIONS As the precise molecular mechanisms underlying many of these associations are still poorly understood, a key focus for future research should be the identification of primary targets for peroxisome-derived H2O2.
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Affiliation(s)
- Marc Fransen
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven , Leuven, Belgium
| | - Celien Lismont
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven , Leuven, Belgium
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59
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Mohamad MI, Aboelhussein MM, Elayat WM, Elshormilisy AA. Aberrant renal expression of peroxisome coactivator PGC-1α and its regulators (Sirt1 & GSK3β) in rats with diabetic nephropathy. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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SOCS1-targeted therapy ameliorates renal and vascular oxidative stress in diabetes via STAT1 and PI3K inhibition. J Transl Med 2018; 98:1276-1290. [PMID: 29540859 DOI: 10.1038/s41374-018-0043-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 12/19/2022] Open
Abstract
Oxidative stress resulting from excessive production of reactive oxygen species (ROS) or impaired antioxidant defenses is closely related to the development of diabetic vascular complications, including nephropathy and atherosclerosis. Chronic activation of Janus kinase/Signal transducer and activator of transcription (JAK/STAT) signaling pathway contributes to diabetic complications by inducing expression of genes involved in cell proliferation, fibrosis, inflammation, and oxidative stress. Suppressors of cytokine signaling (SOCS) family of endogenous JAK/STAT regulators is an attractive target for therapeutic intervention. We investigated the beneficial effect of two different SOCS1-targeted therapies (adenovirus-mediated gene transfer and kinase-inhibitory region peptidomimetic) to combat oxidative stress injury in an experimental diabetes model of concomitant renal and macrovascular disease (streptozotocin-induced diabetic apolipoprotein E-deficient mouse). Diabetes resulted in progressive alteration of redox balance in mice, as demonstrated by increased ROS levels and decreased antioxidant activity, which ultimately led to renal dysfunction and vascular injury. The molecular and pathological alterations in early diabetes were partially reversed by preventive intervention with SOCS1-targeted therapies. Importantly, SOCS1 peptidomimetic provided reno- and atheroprotection in diabetic mice even in a setting of established disease. Compared with untreated controls, kidney and aorta from SOCS1-treated mice exhibited significantly lower levels of superoxide anion, DNA oxidation marker and NADPH oxidase (Nox) subunits, along with higher expression of antioxidant enzymes. These trends correlated with a reduction in parameters of renal damage (albuminuria, creatinine and tubular injury), atherosclerosis (lesion size) and inflammation (leukocytes and chemokines). Mechanistic studies in renal, vascular and phagocytic cells exposed to cytokines and high-glucose showed that SOCS1 blocked ROS generation by inhibiting both Nox complex assembly and Nox subunit expression, an effect mediated by inactivation of JAK2, STAT1, and PI3K signaling pathways. This study provides evidence for SOCS1-targeted therapies, especially SOCS1 peptidomimetic, as an alternative antioxidant strategy to limit the progression of diabetic micro- and macrovascular complications.
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61
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Xie R, Zhang H, Wang XZ, Yang XZ, Wu SN, Wang HG, Shen P, Ma TH. The protective effect of betulinic acid (BA) diabetic nephropathy on streptozotocin (STZ)-induced diabetic rats. Food Funct 2018; 8:299-306. [PMID: 28009869 DOI: 10.1039/c6fo01601d] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study was designed to investigate the protective effect of betulinic acid (BA) on streptozotocin (STZ)-induced diabetic rats. The rats were intraperitoneally injected with STZ (35 mg kg-1). 7 days later, the animals were intragastrically administered with metformin (MET, 150 mg kg-1), BA (20 mg kg-1) or BA (40 mg kg-1) once daily for consecutive 30 days. The blood glucose, the contents of insulin, interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in serum were examined. The levels of IL-6, IL-1β, TNF-α, superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA) in kidney tissues were measured. Moreover, the histopathological alteration and the protein expressions of the signaling pathway were detected by hematoxylin and eosin (H&E) staining and western blotting, respectively. BA significantly decreased the levels of serum insulin, IL-6, IL-1β, TNF-α and blood glucose. In addition, BA increased the activities of SOD, CAT and reduced the contents of MDA, IL-6, IL-1β, and TNF-α in kidney tissues. BA also ameliorated the histopathological condition. Furthermore, BA attenuated the phosphorylations of p-adenosine 5'-monophosphate-activated protein kinase (AMPK), nuclear factor kappaB (NF-κB), and an inhibitor of NF-κB (IκBα) and the expressions of NF-E2-related factor 2 (Nrf2) and heme oxygenase (HO)-1. These findings demonstrated that BA exhibited a protective effect on diabetic nephropathy in STZ-induced rats possibly through the AMPK/NF-κB/Nrf2 pathway.
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Affiliation(s)
- Rui Xie
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
| | - Hong Zhang
- Department of Endocrinology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China
| | - Xing-Zhou Wang
- Department of Endocrinology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China
| | - Xiao-Zhong Yang
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
| | - Shang-Nong Wu
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
| | - Hong-Gang Wang
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
| | - Peng Shen
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
| | - Tian-Heng Ma
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P. R. China.
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Di Cara F, Bülow MH, Simmonds AJ, Rachubinski RA. Dysfunctional peroxisomes compromise gut structure and host defense by increased cell death and Tor-dependent autophagy. Mol Biol Cell 2018; 29:2766-2783. [PMID: 30188767 PMCID: PMC6249834 DOI: 10.1091/mbc.e18-07-0434] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The gut has a central role in digestion and nutrient absorption, but it also serves in defending against pathogens, engages in mutually beneficial interactions with commensals, and is a major source of endocrine signals. Gut homeostasis is necessary for organismal health and changes to the gut are associated with conditions like obesity and diabetes and inflammatory illnesses like Crohn's disease. We report that peroxisomes, organelles involved in lipid metabolism and redox balance, are required to maintain gut epithelium homeostasis and renewal in Drosophila and for survival and development of the organism. Dysfunctional peroxisomes in gut epithelial cells activate Tor kinase-dependent autophagy that increases cell death and epithelial instability, which ultimately alter the composition of the intestinal microbiota, compromise immune pathways in the gut in response to infection, and affect organismal survival. Peroxisomes in the gut effectively function as hubs that coordinate responses from stress, metabolic, and immune signaling pathways to maintain enteric health and the functionality of the gut-microbe interface.
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Affiliation(s)
- Francesca Di Cara
- Department of Cell Biology, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Margret H Bülow
- Development, Genetics and Molecular Physiology, LIMES (Life and Medical Sciences), University of Bonn, D-53115 Bonn, Germany
| | - Andrew J Simmonds
- Department of Cell Biology, University of Alberta, Edmonton, AB T6G 2H7, Canada
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Van der Werf R, Walter C, Bietiger W, Seyfritz E, Mura C, Peronet C, Legrandois J, Werner D, Ennahar S, Digel F, Maillard-Pedracini E, Pinget M, Jeandidier N, Marchioni E, Sigrist S, Dal S. Beneficial effects of cherry consumption as a dietary intervention for metabolic, hepatic and vascular complications in type 2 diabetic rats. Cardiovasc Diabetol 2018; 17:104. [PMID: 30029691 PMCID: PMC6054718 DOI: 10.1186/s12933-018-0744-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 07/05/2018] [Indexed: 02/07/2023] Open
Abstract
Background Oxidative stress (OS) plays an important role in type 2 diabetes (T2D) pathogenesis and its complications. New therapies target natural antioxidants as an alternative and/or supplemental strategy to prevent and control them. Our previous chemical and biological studies highlighted the important antioxidant activities of cherries, among other fruits and vegetables, thus we aimed to determine in vivo effects of 2-month long cherry consumption using a high-fat/high-fructose (HFHF) model of diabetic-rats (Lozano et al. in Nutr Metab 13:15, 2016). Methods After 2 months of HFHF, male Wistar rats were divided into: HFHF and HFHF enriched in cherry (nutritional approach) or standard diet ND (lifestyle measures) and ND plus cherry during 2 months. Metabolic, lipidic, oxidative parameters were quantified. Tissues (liver, pancreas and vessels) OS were assessed and hepatic (steatosis, fibrosis, inflammation) and vascular (endothelial dysfunction) complications were characterized. Results T2D was induced after 2 months of HFHF diet, characterized by systemic hyperglycaemia, hyperinsulinemia, glucose intolerance, dyslipidaemia, hyperleptinemia, and oxidative stress associated with endothelial dysfunction and hepatic complications. Cherry consumption for 2 months, in addition to lifestyle measures, in T2D-rats decreased and normalized the systemic disturbances, including oxidative stress complications. Moreover, in the vessel, cherry consumption decreased oxidative stress and increased endothelial nitric oxide (NO) synthase levels, thus increasing NO bioavailability, ensuring vascular homeostasis. In the liver, cherry consumption decreased oxidative stress by inhibiting NADPH oxidase subunit p22phox expression, nuclear factor erythroid-2 related factor 2 (Nrf2) degradation and the formation of reactive oxygen species. It inhibited the activation of sterol regulatory element-binding proteins (1c and 2) and carbohydrate-responsive element-binding protein, and thus decreased steatosis as observed in T2D rats. This led to the improvement of metabolic profiles, together with endothelial and hepatic function improvements. Conclusion Cherry consumption normalized vascular function and controlled hepatic complications, thus reduced the risk of diabetic metabolic disorders. These results demonstrate that a nutritional intervention with a focus on OS could prevent and/or delay the onset of vascular and hepatic complications related to T2D. Electronic supplementary material The online version of this article (10.1186/s12933-018-0744-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Remmelt Van der Werf
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Catherine Walter
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - William Bietiger
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Elodie Seyfritz
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Carole Mura
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Claude Peronet
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | | | | | - Said Ennahar
- IPHC-LC4, UMR 7178, Faculté de Pharmacie, Equipe de Chimie Analytique des Molécules BioActives, Illkirch, France
| | - Fabien Digel
- Interprofession des Fruits et Légumes d'Alsace (IFLA), Sainte Croix en Plaine, France
| | - Elisa Maillard-Pedracini
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Michel Pinget
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
| | - Nathalie Jeandidier
- Structure d'Endocrinologie, Diabète, Nutrition et Addictologie, Pôle NUDE, Hôpitaux Universitaires de Strasbourg, (HUS), 67000, Strasbourg, France
| | - Eric Marchioni
- IPHC-LC4, UMR 7178, Faculté de Pharmacie, Equipe de Chimie Analytique des Molécules BioActives, Illkirch, France
| | - Séverine Sigrist
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France.
| | - Stéphanie Dal
- DIATHEC EA 7294, Fédération de Médecine Translationnelle de Strasbourg, Centre Européen d'Etude du Diabète, Boulevard René Leriche, Université de Strasbourg, 67000, Strasbourg, France
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Deori NM, Kale A, Maurya PK, Nagotu S. Peroxisomes: role in cellular ageing and age related disorders. Biogerontology 2018; 19:303-324. [PMID: 29968207 DOI: 10.1007/s10522-018-9761-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/27/2018] [Indexed: 12/12/2022]
Abstract
Peroxisomes are dynamic organelles essential for optimum functioning of a eukaryotic cell. Biogenesis of these organelles and the diverse functions performed by them have been extensively studied in the past decade. Their ability to perform functions depending on the cell type and growth conditions is unique and remarkable. Oxidation of fatty acids and reactive oxygen species metabolism are the two most important functions of these ubiquitous organelles. They are often referred to as both source and sink of reactive oxygen species in a cell. Recent research connects peroxisome dysfunction to fatal oxidative damage associated with ageing-related diseases/disorders. It is now widely accepted that mitochondria and peroxisomes are required to maintain oxidative balance in a cell. However, our understanding on the inter-dependence of these organelles to maintain cellular homeostasis of reactive oxygen species is still in its infancy. Herein, we summarize findings that highlight the role of peroxisomes in cellular reactive oxygen species metabolism, ageing and age-related disorders.
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Affiliation(s)
- Nayan M Deori
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Avinash Kale
- UM-DAE, Centre for Excellence in Basic Sciences, Health Centre, University of Mumbai, Mumbai, 400098, India
| | - Pawan K Maurya
- Interdisciplinary Laboratory for Clinical Neuroscience (LiNC), Universidade Federal de Sao Paulo-UNIFESP, Sao Paulo, Brazil
| | - Shirisha Nagotu
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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D'Angelo M, Antonosante A, Castelli V, Catanesi M, Moorthy N, Iannotta D, Cimini A, Benedetti E. PPARs and Energy Metabolism Adaptation during Neurogenesis and Neuronal Maturation. Int J Mol Sci 2018; 19:ijms19071869. [PMID: 29949869 PMCID: PMC6073366 DOI: 10.3390/ijms19071869] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/20/2018] [Accepted: 06/24/2018] [Indexed: 11/20/2022] Open
Abstract
Peroxisome proliferator activated receptors (PPARs) are a class of ligand-activated transcription factors, belonging to the superfamily of receptors for steroid and thyroid hormones, retinoids, and vitamin D. PPARs control the expression of several genes connected with carbohydrate and lipid metabolism, and it has been demonstrated that PPARs play important roles in determining neural stem cell (NSC) fate. Lipogenesis and aerobic glycolysis support the rapid proliferation during neurogenesis, and specific roles for PPARs in the control of different phases of neurogenesis have been demonstrated. Understanding the changes in metabolism during neuronal differentiation is important in the context of stem cell research, neurodegenerative diseases, and regenerative medicine. In this review, we will discuss pivotal evidence that supports the role of PPARs in energy metabolism alterations during neuronal maturation and neurodegenerative disorders.
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Affiliation(s)
- Michele D'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Andrea Antonosante
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Mariano Catanesi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - NandhaKumar Moorthy
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Dalila Iannotta
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
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Giorgi C, Marchi S, Simoes IC, Ren Z, Morciano G, Perrone M, Patalas-Krawczyk P, Borchard S, Jȩdrak P, Pierzynowska K, Szymański J, Wang DQ, Portincasa P, Wȩgrzyn G, Zischka H, Dobrzyn P, Bonora M, Duszynski J, Rimessi A, Karkucinska-Wieckowska A, Dobrzyn A, Szabadkai G, Zavan B, Oliveira PJ, Sardao VA, Pinton P, Wieckowski MR. Mitochondria and Reactive Oxygen Species in Aging and Age-Related Diseases. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 340:209-344. [PMID: 30072092 PMCID: PMC8127332 DOI: 10.1016/bs.ircmb.2018.05.006] [Citation(s) in RCA: 195] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aging has been linked to several degenerative processes that, through the accumulation of molecular and cellular damage, can progressively lead to cell dysfunction and organ failure. Human aging is linked with a higher risk for individuals to develop cancer, neurodegenerative, cardiovascular, and metabolic disorders. The understanding of the molecular basis of aging and associated diseases has been one major challenge of scientific research over the last decades. Mitochondria, the center of oxidative metabolism and principal site of reactive oxygen species (ROS) production, are crucial both in health and in pathogenesis of many diseases. Redox signaling is important for the modulation of cell functions and several studies indicate a dual role for ROS in cell physiology. In fact, high concentrations of ROS are pathogenic and can cause severe damage to cell and organelle membranes, DNA, and proteins. On the other hand, moderate amounts of ROS are essential for the maintenance of several biological processes, including gene expression. In this review, we provide an update regarding the key roles of ROS-mitochondria cross talk in different fundamental physiological or pathological situations accompanying aging and highlighting that mitochondrial ROS may be a decisive target in clinical practice.
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Affiliation(s)
- Carlotta Giorgi
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Saverio Marchi
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Ines C.M. Simoes
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Ziyu Ren
- Department of Cell and Developmental Biology, Consortium for Mitochondrial Research, University College London, London, United Kingdom
| | - Giampaolo Morciano
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
- Cecilia Hospital, GVM Care & Research, 48033 Cotignola, Ravenna, Italy
- Maria Pia Hospital, GVM Care & Research, Torino, Italy
| | - Mariasole Perrone
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Paulina Patalas-Krawczyk
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Sabine Borchard
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Paulina Jȩdrak
- Department of Molecular Biology, University of Gdańsk, Gdańsk, Poland
| | | | - Jȩdrzej Szymański
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - David Q. Wang
- Department of Medicine, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Piero Portincasa
- Clinica Medica “A. Murri”, Dept. of Biomedical Sciences & Human Oncology, University of Bari "Aldo Moro" Medical School, Bari, Italy
| | - Grzegorz Wȩgrzyn
- Department of Molecular Biology, University of Gdańsk, Gdańsk, Poland
| | - Hans Zischka
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Toxicology and Environmental Hygiene, Technical University Munich, Munich, Germany
| | - Pawel Dobrzyn
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Massimo Bonora
- Departments of Cell Biology and Gottesman Institute for Stem Cell & Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Jerzy Duszynski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Alessandro Rimessi
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | | | | | - Gyorgy Szabadkai
- Department of Cell and Developmental Biology, Consortium for Mitochondrial Research, University College London, London, United Kingdom
- The Francis Crick Institute, London, United Kingdom
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Barbara Zavan
- Cecilia Hospital, GVM Care & Research, 48033 Cotignola, Ravenna, Italy
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Paulo J. Oliveira
- CNC - Center for Neuroscience and Cell Biology, UC-Biotech, Biocant Park, University of Coimbra, Cantanhede, Portugal
| | - Vilma A. Sardao
- CNC - Center for Neuroscience and Cell Biology, UC-Biotech, Biocant Park, University of Coimbra, Cantanhede, Portugal
| | - Paolo Pinton
- Department of Morphology Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, Interdisciplinary Center for the Study of Inflammation (ICSI), Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
- Cecilia Hospital, GVM Care & Research, 48033 Cotignola, Ravenna, Italy
| | - Mariusz R. Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
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Cobalt treatment does not prevent glomerular morphological alterations in type 1 diabetic rats. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:933-944. [PMID: 29860656 DOI: 10.1007/s00210-018-1511-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/09/2018] [Indexed: 01/11/2023]
Abstract
Early renal morphological alterations including glomerular hypertrophy and mesangial expansion occur in diabetic kidney disease and correlate with various clinical manifestations of diabetes. The present study was designed to investigate the influence of pharmacological modulation of HIF-1α (hypoxia inducible factor-1 alpha) protein levels, on these glomerular changes in rodent model of type 1 diabetes. Male wistar rats were made diabetic (Streptozotocin 45 mg/kg; i.p.) and afterwards treated with HIF activator cobalt chloride for 4 weeks. Renal function was assessed by serum creatinine, albumin, proteinuria levels, oxidative stress: reduced glutathione levels and catalase activity, and renal tissue HIF-1α protein levels were determined by ELISA assay. Histological analysis of kidney sections was done by haematoxylin and eosin (glomeruli diameter), periodic acid Schiff (mesangial expansion and glomerulosclerosis) and sirius red (fibrosis, tubular dilation) staining. Diabetes rats displayed reduced serum albumin levels, marked proteinuria, lower kidney reduced glutathione content, glomerular hypertrophy, glomerulosclerosis, mesangial expansion, tubular dilation and renal fibrosis. Cobalt chloride treatment normalised renal HIF-1α protein levels, reduced development of proteinuria and tubulo-interstitial fibrosis, but the glomerular morphological alterations such as glomerulosclerosis, mesangial expansion, increased glomerular diameter and tubular vacoulations were not abrogated in diabetic kidneys. Glomerular morphological abnormalities might precede the development of proteinuria and renal fibrosis in experimental model of type 1 diabetes. Pharmacological modulation of renal HIF-1α protein levels does not influence glomerular and tubular dilatory changes in diabetic kidney disease.
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Lee JN, Dutta RK, Maharjan Y, Liu ZQ, Lim JY, Kim SJ, Cho DH, So HS, Choe SK, Park R. Catalase inhibition induces pexophagy through ROS accumulation. Biochem Biophys Res Commun 2018; 501:696-702. [DOI: 10.1016/j.bbrc.2018.05.050] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 05/09/2018] [Indexed: 12/15/2022]
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Serum Extracellular Superoxide Dismutase Is Associated with Diabetic Retinopathy Stage in Chinese Patients with Type 2 Diabetes Mellitus. DISEASE MARKERS 2018; 2018:8721379. [PMID: 29849828 PMCID: PMC5937587 DOI: 10.1155/2018/8721379] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/26/2017] [Accepted: 02/20/2018] [Indexed: 02/08/2023]
Abstract
Extracellular superoxide dismutase (ecSOD) is the major extracellular scavenger of reactive oxygen species and associated with the diabetic complication in patients with type 2 diabetes mellitus (T2DM). We aimed to investigate the serum ecSOD activity in Chinese patients with different stages of diabetic retinopathy (DR) and evaluate the association between the serum ecSOD activity and the severity of DR. A total of 343 T2DM patients were categorized into three groups: nondiabetic retinopathy (NDR) group, nonproliferative diabetic retinopathy (NPDR) group, and proliferative diabetic retinopathy (PDR) group. Serum ecSOD activities were measured by the autoxidation of the pyrogallol method. In this study, 271, 46, and 26 patients were enrolled in the NDR, NPDR, and PDR groups, respectively. We found a significantly decreased trend of serum ecSOD activity among NDR subjects (118.0 ± 11.5 U/mL) compared to NPDR subjects (108.5 ± 11.9 U/mL) (P < 0.001) and NPDR subjects compared to PDR subjects (102.7 ± 12.4 U/mL) (P = 0.041). Serum ecSOD activity was an independent risk factor for DR (OR = 0.920, P < 0.001) and was associated with the progression of DR. Serum ecSOD activity might be a biomarker for DR screening and evaluation of the clinical severity of DR in Chinese T2DM patients.
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Redox crosstalk at endoplasmic reticulum (ER) membrane contact sites (MCS) uses toxic waste to deliver messages. Cell Death Dis 2018; 9:331. [PMID: 29491367 PMCID: PMC5832433 DOI: 10.1038/s41419-017-0033-4] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/29/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022]
Abstract
Many cellular redox reactions housed within mitochondria, peroxisomes and the endoplasmic reticulum (ER) generate hydrogen peroxide (H2O2) and other reactive oxygen species (ROS). The contribution of each organelle to the total cellular ROS production is considerable, but varies between cell types and also over time. Redox-regulatory enzymes are thought to assemble at a “redox triangle” formed by mitochondria, peroxisomes and the ER, assembling “redoxosomes” that sense ROS accumulations and redox imbalances. The redoxosome enzymes use ROS, potentially toxic by-products made by some redoxosome members themselves, to transmit inter-compartmental signals via chemical modifications of downstream proteins and lipids. Interestingly, important components of the redoxosome are ER chaperones and oxidoreductases, identifying ER oxidative protein folding as a key ROS producer and controller of the tri-organellar membrane contact sites (MCS) formed at the redox triangle. At these MCS, ROS accumulations could directly facilitate inter-organellar signal transmission, using ROS transporters. In addition, ROS influence the flux of Ca2+ ions, since many Ca2+ handling proteins, including inositol 1,4,5 trisphosphate receptors (IP3Rs), SERCA pumps or regulators of the mitochondrial Ca2+ uniporter (MCU) are redox-sensitive. Fine-tuning of these redox and ion signaling pathways might be difficult in older organisms, suggesting a dysfunctional redox triangle may accompany the aging process.
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Sifuentes-Franco S, Padilla-Tejeda DE, Carrillo-Ibarra S, Miranda-Díaz AG. Oxidative Stress, Apoptosis, and Mitochondrial Function in Diabetic Nephropathy. Int J Endocrinol 2018; 2018:1875870. [PMID: 29808088 PMCID: PMC5902001 DOI: 10.1155/2018/1875870] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 02/07/2018] [Indexed: 12/16/2022] Open
Abstract
Diabetic nephropathy (DN) is the second most frequent and prevalent complication of diabetes mellitus (DM). The increase in the production of oxidative stress (OS) is induced by the persistent hyperglycemic state capable of producing oxidative damage to the macromolecules (lipids, carbohydrates, proteins, and nucleic acids). OS favors the production of oxidative damage to the histones of the double-chain DNA and affects expression of the DNA repairer enzyme which leads to cell death from apoptosis. The chronic hyperglycemic state unchains an increase in advanced glycation end-products (AGE) that interact through the cellular receptors to favor activation of the transcription factor NF-κB and the protein kinase C (PKC) system, leading to the appearance of inflammation, growth, and augmentation of synthesis of the extracellular matrix (ECM) in DN. The reactive oxygen species (ROS) play an important role in the pathogenesis of diabetic complications because the production of ROS increases during the persistent hyperglycemia. The primary source of the excessive production of ROS is the mitochondria with the capacity to exceed production of endogenous antioxidants. Due to the fact that the mechanisms involved in the development of DN have not been fully clarified, there are different approaches to specific therapeutic targets or adjuvant management alternatives in the control of glycemia in DN.
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Affiliation(s)
- Sonia Sifuentes-Franco
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Health Sciences Centre, University of Guadalajara, Guadalajara, JAL, Mexico
| | - Diego Enrique Padilla-Tejeda
- Programa de Químico Farmacéutico Biotecnologo, Escuela de Ciencias de la Salud, Campus Zapopan, Universidad del Valle de México, Guadalajara, JAL, Mexico
| | - Sandra Carrillo-Ibarra
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Health Sciences Centre, University of Guadalajara, Guadalajara, JAL, Mexico
| | - Alejandra Guillermina Miranda-Díaz
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Health Sciences Centre, University of Guadalajara, Guadalajara, JAL, Mexico
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Krishan P, Singh G, Bedi O. Carbohydrate restriction ameliorates nephropathy by reducing oxidative stress and upregulating HIF-1α levels in type-1 diabetic rats. J Diabetes Metab Disord 2017; 16:47. [PMID: 29270392 PMCID: PMC5735925 DOI: 10.1186/s40200-017-0331-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 12/05/2017] [Indexed: 02/07/2023]
Abstract
Background Carbohydrate restricted diet regimen is widely accepted as therapeutic approach for the treatment of kidney disease associated with type-2 diabetes, obesity and hypertensive disorders. The present study tested the influence of carbohydrate-energy restricted diet (CR) on type-1 diabetes induced renal dysfunction, hypoxia and structural alterations against diabetic rat group fed control diet (ad libitium). Methods Male wistar rats weighing between 180 and 190 g were subjected to 30% carbohydrate energy restricted diet (CR) and diabetes was induced by administration of streptozotocin (45 mg/kg., i.p). Assessment of renal function was done after 4 weeks by determining the serum levels of creatinine, BUN, proteinuria. Oxidative stress was determined by estimating the reduced glutathione, malonaldehyde levels, catalase activity and extent of renal hypoxia by estimating the HIF-1α levels in kidney tissue homogenates. Histological studies were conducted on kidney sections using hematoxylin and eosin, periodic acid-schiff staining. Results Diabetic rats exhibited marked hyperglycemia and renal dysfunction developed in diabetic rats fed control diet (ad libitium) as shown by significantly elevated levels of serum creatinine, BUN and massive proteinuria after 4 weeks period. CR diet treatment in diabetic rats significantly lowered hyperglycemia, reversed the above renal functional abnormalities, reduced oxidative stress and enhanced HIF-1α levels. Furthermore histological examination of kidney sections from CR diet treated diabetic rat group showed absence of glomerular hypertrophy, mesangial expansion and tubular vacoulations. Conclusion Our results demonstrated that CR diet treatment in diabetic rats attenuated renal damage by reducing oxidative stress and preventing the development of hypoxia by up-regulating HIF-1α levels.
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Affiliation(s)
- Pawan Krishan
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab India
| | - Gaaminepreet Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab India
| | - Onkar Bedi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab India.,JRF, DST-SERB, New Delhi, India
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Walker CL, Pomatto LCD, Tripathi DN, Davies KJA. Redox Regulation of Homeostasis and Proteostasis in Peroxisomes. Physiol Rev 2017; 98:89-115. [PMID: 29167332 DOI: 10.1152/physrev.00033.2016] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 02/08/2023] Open
Abstract
Peroxisomes are highly dynamic intracellular organelles involved in a variety of metabolic functions essential for the metabolism of long-chain fatty acids, d-amino acids, and many polyamines. A byproduct of peroxisomal metabolism is the generation, and subsequent detoxification, of reactive oxygen and nitrogen species, particularly hydrogen peroxide (H2O2). Because of its relatively low reactivity (as a mild oxidant), H2O2 has a comparatively long intracellular half-life and a high diffusion rate, all of which makes H2O2 an efficient signaling molecule. Peroxisomes also have intricate connections to mitochondria, and both organelles appear to play important roles in regulating redox signaling pathways. Peroxisomal proteins are also subject to oxidative modification and inactivation by the reactive oxygen and nitrogen species they generate, but the peroxisomal LonP2 protease can selectively remove such oxidatively damaged proteins, thus prolonging the useful lifespan of the organelle. Peroxisomal homeostasis must adapt to the metabolic state of the cell, by a combination of peroxisome proliferation, the removal of excess or badly damaged organelles by autophagy (pexophagy), as well as by processes of peroxisome inheritance and motility. More recently the tumor suppressors ataxia telangiectasia mutate (ATM) and tuberous sclerosis complex (TSC), which regulate mTORC1 signaling, have been found to regulate pexophagy in response to variable levels of certain reactive oxygen and nitrogen species. It is now clear that any significant loss of peroxisome homeostasis can have devastating physiological consequences. Peroxisome dysregulation has been implicated in several metabolic diseases, and increasing evidence highlights the important role of diminished peroxisomal functions in aging processes.
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Affiliation(s)
- Cheryl L Walker
- Center for Precision Environmental Health and Departments of Molecular & Cellular Biology and Medicine, Baylor College of Medicine, Houston, Texas; and Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center and Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, California
| | - Laura C D Pomatto
- Center for Precision Environmental Health and Departments of Molecular & Cellular Biology and Medicine, Baylor College of Medicine, Houston, Texas; and Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center and Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, California
| | - Durga Nand Tripathi
- Center for Precision Environmental Health and Departments of Molecular & Cellular Biology and Medicine, Baylor College of Medicine, Houston, Texas; and Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center and Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, California
| | - Kelvin J A Davies
- Center for Precision Environmental Health and Departments of Molecular & Cellular Biology and Medicine, Baylor College of Medicine, Houston, Texas; and Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center and Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, The University of Southern California, Los Angeles, California
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Sphingosine kinase 1 mediates AGEs-induced fibronectin upregulation in diabetic nephropathy. Oncotarget 2017; 8:78660-78676. [PMID: 29108256 PMCID: PMC5667989 DOI: 10.18632/oncotarget.20205] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 07/12/2017] [Indexed: 12/17/2022] Open
Abstract
Activation of sphingosine kinase 1 (SphK1) signaling pathway mediates fibronectin (FN) upregulation in glomerular mesangial cells (GMCs) under high glucose (HG) condition. However, the roles of SphK1 in advanced glycation end products (AGEs)-induced DN have not been elucidated. Here we show that AGEs upregulated FN and SphK1 and SphK1 activity. Inhibition of SphK1 signaling attenuated AGEs-induced FN synthesis in GMCs. Inhibition of AGE receptor (RAGE) signaling reduced the upregulation of FN and SphK1 and SphK1 activity in GMCs induced by AGEs. Treatment of aminoguanidine ameliorates the renal injury and fibrosis in STZ-induced diabetic mice and attenuated SphK1 expression and activity in diabetic mouse kidneys. The renal injury and fibrosis in diabetic SphK1-/- mice was significantly attenuated than WT mice. Furthermore, AGEs upregulated SphK1 by reducing its degradation and prolonging its half-life. Conclusion: SphK1 mediates AGEs-induced FN synthesis in GMCs and diabetic mice under hyperglycemic condition.
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75
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Pro- and Antioxidant Functions of the Peroxisome-Mitochondria Connection and Its Impact on Aging and Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9860841. [PMID: 28811869 PMCID: PMC5546064 DOI: 10.1155/2017/9860841] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 06/27/2017] [Indexed: 12/13/2022]
Abstract
Peroxisomes and mitochondria are the main intracellular sources for reactive oxygen species. At the same time, both organelles are critical for the maintenance of a healthy redox balance in the cell. Consequently, failure in the function of both organelles is causally linked to oxidative stress and accelerated aging. However, it has become clear that peroxisomes and mitochondria are much more intimately connected both physiologically and structurally. Both organelles share common fission components to dynamically respond to environmental cues, and the autophagic turnover of both peroxisomes and mitochondria is decisive for cellular homeostasis. Moreover, peroxisomes can physically associate with mitochondria via specific protein complexes. Therefore, the structural and functional connection of both organelles is a critical and dynamic feature in the regulation of oxidative metabolism, whose dynamic nature will be revealed in the future. In this review, we will focus on fundamental aspects of the peroxisome-mitochondria interplay derived from simple models such as yeast and move onto discussing the impact of an impaired peroxisomal and mitochondrial homeostasis on ROS production, aging, and disease in humans.
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76
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Kwon G, Uddin MJ, Lee G, Jiang S, Cho A, Lee JH, Lee SR, Bae YS, Moon SH, Lee SJ, Cha DR, Ha H. A novel pan-Nox inhibitor, APX-115, protects kidney injury in streptozotocin-induced diabetic mice: possible role of peroxisomal and mitochondrial biogenesis. Oncotarget 2017; 8:74217-74232. [PMID: 29088780 PMCID: PMC5650335 DOI: 10.18632/oncotarget.18540] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 06/05/2017] [Indexed: 02/07/2023] Open
Abstract
NADPH oxidase (Nox)-derived reactive oxygen species (ROS) are increasingly recognized as a key factor in inflammation and extracellular matrix accumulation in diabetic kidney disease. APX-115 (3-phenyl-1-(pyridin-2-yl)-4-propyl-1-5-hydroxypyrazol HCl) is a novel orally active pan-Nox inhibitor. The objective of this study was to compare the protective effect of APX-115 with a renin-angiotensin system inhibitor (losartan), the standard treatment against kidney injury in diabetic patients, on streptozotocin (STZ)-induced diabetic kidney injury. Diabetes was induced by intraperitoneal injection of STZ at 50 mg/kg/day for 5 days in C57BL/6J mice. APX-115 (60 mg/kg/day) or losartan (1.5 mg/kg/day) was administered orally to diabetic mice for 12 weeks. APX-115 effectively prevented kidney injury such as albuminuria, glomerular hypertrophy, tubular injury, podocyte injury, fibrosis, and inflammation as well as oxidative stress in diabetic mice, similar to losartan. In addition, both APX-115 and losartan treatment effectively inhibited mitochondrial and peroxisomal dysfunction associated with lipid accumulation. Our data suggest that APX-115, a pan-Nox inhibitor, may become a novel therapeutic agent against diabetic kidney disease by maintaining peroxisomal and mitochondrial fitness.
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Affiliation(s)
- Guideock Kwon
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Gayoung Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Songling Jiang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Ahreum Cho
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Jung Hwa Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Sae Rom Lee
- Department of Life Science, Ewha Womans University, Seoul, Korea
| | - Yun Soo Bae
- Department of Life Science, Ewha Womans University, Seoul, Korea
| | | | | | - Dae Ryong Cha
- Department of Internal Medicine, Division of Nephrology, Korea University, Seoul, Korea
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
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Incalza MA, D'Oria R, Natalicchio A, Perrini S, Laviola L, Giorgino F. Oxidative stress and reactive oxygen species in endothelial dysfunction associated with cardiovascular and metabolic diseases. Vascul Pharmacol 2017; 100:1-19. [PMID: 28579545 DOI: 10.1016/j.vph.2017.05.005] [Citation(s) in RCA: 717] [Impact Index Per Article: 102.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 05/21/2017] [Accepted: 05/31/2017] [Indexed: 12/13/2022]
Abstract
Reactive oxygen species (ROS) are reactive intermediates of molecular oxygen that act as important second messengers within the cells; however, an imbalance between generation of reactive ROS and antioxidant defense systems represents the primary cause of endothelial dysfunction, leading to vascular damage in both metabolic and atherosclerotic diseases. Endothelial activation is the first alteration observed, and is characterized by an abnormal pro-inflammatory and pro-thrombotic phenotype of the endothelial cells lining the lumen of blood vessels. This ultimately leads to reduced nitric oxide (NO) bioavailability, impairment of the vascular tone and other endothelial phenotypic changes collectively termed endothelial dysfunction(s). This review will focus on the main mechanisms involved in the onset of endothelial dysfunction, with particular focus on inflammation and aberrant ROS production and on their relationship with classical and non-classical cardiovascular risk factors, such as hypertension, metabolic disorders, and aging. Furthermore, new mediators of vascular damage, such as microRNAs, will be discussed. Understanding mechanisms underlying the development of endothelial dysfunction is an important base of knowledge to prevent vascular damage in metabolic and cardiovascular diseases.
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Affiliation(s)
- Maria Angela Incalza
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Rossella D'Oria
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Annalisa Natalicchio
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Sebastio Perrini
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Luigi Laviola
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Francesco Giorgino
- Department of Emergency and Organ Transplantation, Section on Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
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78
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The Peroxisome-Mitochondria Connection: How and Why? Int J Mol Sci 2017; 18:ijms18061126. [PMID: 28538669 PMCID: PMC5485950 DOI: 10.3390/ijms18061126] [Citation(s) in RCA: 204] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/15/2017] [Accepted: 05/20/2017] [Indexed: 12/14/2022] Open
Abstract
Over the past decades, peroxisomes have emerged as key regulators in overall cellular lipid and reactive oxygen species metabolism. In mammals, these organelles have also been recognized as important hubs in redox-, lipid-, inflammatory-, and innate immune-signaling networks. To exert these activities, peroxisomes must interact both functionally and physically with other cell organelles. This review provides a comprehensive look of what is currently known about the interconnectivity between peroxisomes and mitochondria within mammalian cells. We first outline how peroxisomal and mitochondrial abundance are controlled by common sets of cis- and trans-acting factors. Next, we discuss how peroxisomes and mitochondria may communicate with each other at the molecular level. In addition, we reflect on how these organelles cooperate in various metabolic and signaling pathways. Finally, we address why peroxisomes and mitochondria have to maintain a healthy relationship and why defects in one organelle may cause dysfunction in the other. Gaining a better insight into these issues is pivotal to understanding how these organelles function in their environment, both in health and disease.
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Piao L, Choi J, Kwon G, Ha H. Endogenous catalase delays high-fat diet-induced liver injury in mice. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017; 21:317-325. [PMID: 28461774 PMCID: PMC5409117 DOI: 10.4196/kjpp.2017.21.3.317] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 02/17/2017] [Accepted: 03/03/2017] [Indexed: 01/20/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the most prevalent liver disease in parallel with worldwide epidemic of obesity. Reactive oxygen species (ROS) contributes to the development and progression of NAFLD. Peroxisomes play an important role in fatty acid oxidation and ROS homeostasis, and catalase is an antioxidant exclusively expressed in peroxisome. The present study examined the role of endogenous catalase in early stage of NAFLD. 8-week-old male catalase knock-out (CKO) and age-matched C57BL/6J wild type (WT) mice were fed either a normal diet (ND: 18% of total calories from fat) or a high fat diet (HFD: 60% of total calories from fat) for 2 weeks. CKO mice gained body weight faster than WT mice at early period of HFD feeding. Plasma triglyceride and ALT, fasting plasma insulin, as well as liver lipid accumulation, inflammation (F4/80 staining), and oxidative stress (8-oxo-dG staining and nitrotyrosine level) were significantly increased in CKO but not in WT mice at 2 weeks of HFD feeding. While phosphorylation of Akt (Ser473) and PGC1α mRNA expression were decreased in both CKO and WT mice at HFD feeding, GSK3β phosphorylation and Cox4-il mRNA expression in the liver were decreased only in CKO-HF mice. Taken together, the present data demonstrated that endogenous catalase exerted beneficial effects in protecting liver injury including lipid accumulation and inflammation through maintaining liver redox balance from the early stage of HFD-induced metabolic stress.
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Affiliation(s)
- Lingjuan Piao
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
| | - Jiyeon Choi
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
| | - Guideock Kwon
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
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80
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Ali F, Aziz F, Wajid N. Effect of type 2 diabetic serum on the behavior of Wharton's jelly-derived mesenchymal stem cells in vitro. Chronic Dis Transl Med 2017; 3:105-111. [PMID: 29063063 PMCID: PMC5627692 DOI: 10.1016/j.cdtm.2017.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Indexed: 11/25/2022] Open
Abstract
Objective Wharton jelly-derived mesenchymal stem cells (WJMSCs) exhibit multilineage differentiation potential and can be used to treat multiple organs. However, diabetes affects the repair capability of MSCs. The aim of this study was to evaluate the effect of diabetic patient-derived serum on WJMSC behavior. Methods WJMSCs at passage 3 were treated with serum derived from type 2 diabetic patients. WJMSCs were characterized for surface markers expression by using immunocytochemistry technique. The effects on cell viability, proliferation, cell death rate, and vascular endothelial growth factor level were assessed by crystal violet staining, 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay, lactate dehydrogenase assay, and enzyme-linked immuno-sorbent assay, respectively. Oxidative stress was assessed by the estimation of free radical species malondialdehyde (MDA) and enzymes glutathione (GSH), catalase, and superoxide dismutase (SOD). Results WJMSCs isolated in this study were positive for CD29, CD49, CD73, CD90, CD105, and SSEA4 and negative for CD45 and CD34. Under diabetic stress conditions, WJMSCs showed low viability and high lactate dehydrogenase release. A low level of vascular endothelial growth factor was also observed after diabetic serum treatment. Antioxidant level was also lower in diabetic serum-treated WJMSCs compared to in normal serum-treated WJMSCs. Conclusion The results of the present study suggest that pre-treatment of WJMSCs with type 2 diabetic serum decreases the survival of WJMSCs. The findings of this study provide insight into diabetes-induced harmful effects on WJMSCs.
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Affiliation(s)
- Fatima Ali
- Institute of Molecular Biology and Biotechnology (IMBB) & Centre for Research In Molecular Medicine (CRIMM), The University of Lahore, Raiwind Road, Lahore, Pakistan
| | - Fehmina Aziz
- Institute of Molecular Biology and Biotechnology (IMBB) & Centre for Research In Molecular Medicine (CRIMM), The University of Lahore, Raiwind Road, Lahore, Pakistan
| | - Nadia Wajid
- Institute of Molecular Biology and Biotechnology (IMBB) & Centre for Research In Molecular Medicine (CRIMM), The University of Lahore, Raiwind Road, Lahore, Pakistan
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81
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Cipolla CM, Lodhi IJ. Peroxisomal Dysfunction in Age-Related Diseases. Trends Endocrinol Metab 2017; 28:297-308. [PMID: 28063767 PMCID: PMC5366081 DOI: 10.1016/j.tem.2016.12.003] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/04/2016] [Accepted: 12/07/2016] [Indexed: 12/21/2022]
Abstract
Peroxisomes carry out many key functions related to lipid and reactive oxygen species (ROS) metabolism. The fundamental importance of peroxisomes for health in humans is underscored by the existence of devastating genetic disorders caused by impaired peroxisomal function or lack of peroxisomes. Emerging studies suggest that peroxisomal function may also be altered with aging and contribute to the pathogenesis of a variety of diseases, including diabetes and its related complications, neurodegenerative disorders, and cancer. With increasing evidence connecting peroxisomal dysfunction to the pathogenesis of these acquired diseases, the possibility of targeting peroxisomal function in disease prevention or treatment becomes intriguing. Here, we review recent developments in understanding the pathophysiological implications of peroxisomal dysfunctions outside the context of inherited peroxisomal disorders.
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Affiliation(s)
- Cynthia M Cipolla
- Division of Endocrinology, Metabolism & Lipid Research, Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Irfan J Lodhi
- Division of Endocrinology, Metabolism & Lipid Research, Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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Evans TD, Sergin I, Zhang X, Razani B. Target acquired: Selective autophagy in cardiometabolic disease. Sci Signal 2017; 10:eaag2298. [PMID: 28246200 PMCID: PMC5451512 DOI: 10.1126/scisignal.aag2298] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The accumulation of damaged or excess proteins and organelles is a defining feature of metabolic disease in nearly every tissue. Thus, a central challenge in maintaining metabolic homeostasis is the identification, sequestration, and degradation of these cellular components, including protein aggregates, mitochondria, peroxisomes, inflammasomes, and lipid droplets. A primary route through which this challenge is met is selective autophagy, the targeting of specific cellular cargo for autophagic compartmentalization and lysosomal degradation. In addition to its roles in degradation, selective autophagy is emerging as an integral component of inflammatory and metabolic signaling cascades. In this Review, we focus on emerging evidence and key questions about the role of selective autophagy in the cell biology and pathophysiology of metabolic diseases such as obesity, diabetes, atherosclerosis, and steatohepatitis. Essential players in these processes are the selective autophagy receptors, defined broadly as adapter proteins that both recognize cargo and target it to the autophagosome. Additional domains within these receptors may allow integration of information about autophagic flux with critical regulators of cellular metabolism and inflammation. Details regarding the precise receptors involved, such as p62 and NBR1, and their predominant interacting partners are just beginning to be defined. Overall, we anticipate that the continued study of selective autophagy will prove to be informative in understanding the pathogenesis of metabolic diseases and to provide previously unrecognized therapeutic targets.
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Affiliation(s)
- Trent D Evans
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ismail Sergin
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Xiangyu Zhang
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Babak Razani
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
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83
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Heit C, Marshall S, Singh S, Yu X, Charkoftaki G, Zhao H, Orlicky DJ, Fritz KS, Thompson DC, Vasiliou V. Catalase deletion promotes prediabetic phenotype in mice. Free Radic Biol Med 2017; 103:48-56. [PMID: 27939935 PMCID: PMC5513671 DOI: 10.1016/j.freeradbiomed.2016.12.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 11/02/2016] [Accepted: 12/07/2016] [Indexed: 01/22/2023]
Abstract
Hydrogen peroxide is produced endogenously and can be toxic to living organisms by inducing oxidative stress and cell damage. However, it has also been identified as a signal transduction molecule. By metabolizing hydrogen peroxide, catalase protects cells and tissues against oxidative damage and may also influence signal transduction mechanisms. Studies suggest that acatalasemic individuals (i.e., those with very low catalase activity) have a higher risk for the development of diabetes. We now report catalase knockout (Cat-/-) mice, when fed a normal (6.5% lipid) chow, exhibit an obese phenotype that manifests as an increase in body weight that becomes more pronounced with age. The mice demonstrate altered hepatic and muscle lipid deposition, as well as increases in serum and hepatic triglycerides (TGs), and increased hepatic transcription and protein expression of PPARγ. Liver morphology revealed steatosis with inflammation. Cat-/- mice also exhibited pancreatic morphological changes that correlated with impaired glucose tolerance and increased fasting serum insulin levels, conditions consistent with pre-diabetic status. RNA-seq analyses revealed a differential expression of pathways and genes in Cat-/- mice, many of which are related to metabolic syndrome, diabetes, and obesity, such as Pparg and Cidec. In conclusion, the results of the present study show mice devoid of catalase develop an obese, pre-diabetic phenotype and provide compelling evidence for catalase (or its products) being integral in metabolic regulation.
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Affiliation(s)
- Claire Heit
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO 80045, USA
| | - Stephanie Marshall
- Department of Environmental Health Services, Yale School of Public Health, Yale University, 60 College St, New Haven CT 06520-8034, USA
| | - Surrendra Singh
- Department of Environmental Health Services, Yale School of Public Health, Yale University, 60 College St, New Haven CT 06520-8034, USA
| | - Xiaoqing Yu
- Department of Biostatistics, Yale School of Public Health, Yale University, New Haven CT 06520, USA
| | - Georgia Charkoftaki
- Department of Environmental Health Services, Yale School of Public Health, Yale University, 60 College St, New Haven CT 06520-8034, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, Yale University, New Haven CT 06520, USA
| | - David J Orlicky
- Department of Pathology, School of Medicine University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kristofer S Fritz
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO 80045, USA
| | - David C Thompson
- Department of Clinical Pharmacy, School of Pharmacy, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO 80045, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Services, Yale School of Public Health, Yale University, 60 College St, New Haven CT 06520-8034, USA.
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França MB, Lima KC, Eleutherio ECA. Oxidative Stress and Amyloid Toxicity: Insights From Yeast. J Cell Biochem 2017; 118:1442-1452. [PMID: 27883213 DOI: 10.1002/jcb.25803] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 11/21/2016] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease is the most common neurodegenerative disorder. One of the factors that promotes neurodegeneration is the accumulation of senile plaques formed by Aβ peptide. In this paper, it was analyzed that if oxidative stress is cause or consequence of amyloid cascade and the role of antioxidant defense system in this process, using S. cerevisiae (with a multicopy plasmid containing the Aβ1-42 sequence) as experimental model. Cells grown on glycerol were more tolerant than when grown on glucose, strengthening the role of the antioxidant defense system against Aβ accumulation. Antioxidant defense deficiency did not change the pattern of amyloid aggregation. On the other hand, the presence of Aβ increased the level of intracellular oxidation and induced the activity of catalase, superoxide dismutase, and aconitase. Peroxissomal catalase deficient cells (Δcta1), were more sensitive to Aβ toxicity than the wild type strain, while mitochondrial superoxide dismutase (Sod2) deficient cells displayed the highest frequency of petites. Besides, Aβ alters the oxygen consumption and the activity of complex III and IV. Taken together, our results point out that the Aβ toxicity mechanism involves an oxidative stress induction by increasing ROS production into the mitochondria, where Cta1 and Sod2 play a crucial role in the regulation of the redox balance. J. Cell. Biochem. 118: 1442-1452, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Mauro B França
- Institute of Chemistry, Federal University of Rio de Janeiro (UFRJ), 21941-909, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Karina C Lima
- Institute of Chemistry, Federal University of Rio de Janeiro (UFRJ), 21941-909, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elis C A Eleutherio
- Institute of Chemistry, Federal University of Rio de Janeiro (UFRJ), 21941-909, Rio de Janeiro, Rio de Janeiro, Brazil
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Saito R, Rocanin-Arjo A, You YH, Darshi M, Van Espen B, Miyamoto S, Pham J, Pu M, Romoli S, Natarajan L, Ju W, Kretzler M, Nelson R, Ono K, Thomasova D, Mulay SR, Ideker T, D'Agati V, Beyret E, Belmonte JCI, Anders HJ, Sharma K. Systems biology analysis reveals role of MDM2 in diabetic nephropathy. JCI Insight 2016; 1:e87877. [PMID: 27777973 DOI: 10.1172/jci.insight.87877] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
To derive new insights in diabetic complications, we integrated publicly available human protein-protein interaction (PPI) networks with global metabolic networks using metabolomic data from patients with diabetic nephropathy. We focused on the participating proteins in the network that were computationally predicted to connect the urine metabolites. MDM2 had the highest significant number of PPI connections. As validation, significant downregulation of MDM2 gene expression was found in both glomerular and tubulointerstitial compartments of kidney biopsy tissue from 2 independent cohorts of patients with diabetic nephropathy. In diabetic mice, chemical inhibition of MDM2 with Nutlin-3a led to reduction in the number of podocytes, increased blood urea nitrogen, and increased mortality. Addition of Nutlin-3a decreased WT1+ cells in embryonic kidneys. Both podocyte- and tubule-specific MDM2-knockout mice exhibited severe glomerular and tubular dysfunction, respectively. Interestingly, the only 2 metabolites that were reduced in both podocyte and tubule-specific MDM2-knockout mice were 3-methylcrotonylglycine and uracil, both of which were also reduced in human diabetic kidney disease. Thus, our bioinformatics tool combined with multi-omics studies identified an important functional role for MDM2 in glomeruli and tubules of the diabetic nephropathic kidney and links MDM2 to a reduction in 2 key metabolite biomarkers.
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Affiliation(s)
- Rintaro Saito
- Institute of Metabolomic Medicine.,Center for Renal Translational Medicine, Division of Nephrology-Hypertension.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Anaïs Rocanin-Arjo
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Munich, Germany
| | - Young-Hyun You
- Center for Renal Translational Medicine, Division of Nephrology-Hypertension.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Manjula Darshi
- Institute of Metabolomic Medicine.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Benjamin Van Espen
- Institute of Metabolomic Medicine.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Satoshi Miyamoto
- Center for Renal Translational Medicine, Division of Nephrology-Hypertension.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Jessica Pham
- Center for Renal Translational Medicine, Division of Nephrology-Hypertension.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Minya Pu
- Institute of Metabolomic Medicine.,Department of Family Medicine and Epidemiology, UCSD, San Diego, California, USA
| | - Simone Romoli
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Munich, Germany
| | - Loki Natarajan
- Institute of Metabolomic Medicine.,Department of Family Medicine and Epidemiology, UCSD, San Diego, California, USA
| | - Wenjun Ju
- Department of Internal Medicine, Nephrology and Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
| | - Matthias Kretzler
- Department of Internal Medicine, Nephrology and Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
| | - Robert Nelson
- National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona, USA
| | - Keiichiro Ono
- Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Dana Thomasova
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Munich, Germany
| | - Shrikant R Mulay
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Munich, Germany
| | - Trey Ideker
- Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA
| | - Vivette D'Agati
- Renal Pathology Laboratory, Columbia University, College of Physicians and Surgeons, Department of Pathology, New York, New York, USA
| | - Ergin Beyret
- Salk Institute for Biological Studies, San Diego, California, USA
| | | | - Hans Joachim Anders
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Munich, Germany
| | - Kumar Sharma
- Institute of Metabolomic Medicine.,Center for Renal Translational Medicine, Division of Nephrology-Hypertension.,Division of Medical Genetics, Department of Medicine, UCSD, San Diego, California, USA.,Veterans Affairs Health Systems, San Diego, California, USA
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86
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Hu H, He L, Li L, Chen L. Apelin/APJ system as a therapeutic target in diabetes and its complications. Mol Genet Metab 2016; 119:20-7. [PMID: 27650065 DOI: 10.1016/j.ymgme.2016.07.012] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/26/2016] [Accepted: 07/26/2016] [Indexed: 01/25/2023]
Abstract
The G-protein-coupled receptor APJ and its endogenous ligand apelin are widely expressed in many peripheral tissues and central nervous system, including adipose tissue, skeletal muscles and hypothalamus. Apelin/APJ system, involved in numerous physiological functions like angiogenesis, fluid homeostasis and energy metabolism regulation, is notably implicated in the development of different pathologies such as diabetes and its complications. Increasing evidence suggests that apelin regulates insulin sensitivity, stimulates glucose utilization and enhances brown adipogenesis in different tissues associated with diabetes. Moreover, apelin is also involved in the regulation of diabetic complications via binding to APJ receptor. Apelin improves diabetes-induced kidney hypertrophia, normalizes obesity-associated cardiac hypertrophy and negatively promotes retinal angiogenesis in diabetic retinopathy. In this review, we provide a comprehensive overview about the role of apelin/APJ system in different tissues related with diabetes. Furthermore, we describe the pathogenesis of diabetic complications associated with apelin/APJ system. Finally, agonists and antagonists targeted to APJ receptor are described in the literature. Thus, we highlight apelin/APJ system as a novel therapeutic target for pharmacological intervention in treating diabetes and its complications.
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Affiliation(s)
- Haoliang Hu
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Lu He
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China; Department of Neurosurgery, The First Affiliated Hospital of University of South China, Hengyang 421001, China
| | - Lanfang Li
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
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87
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Novel Role of Endogenous Catalase in Macrophage Polarization in Adipose Tissue. Mediators Inflamm 2016; 2016:8675905. [PMID: 27597806 PMCID: PMC5002490 DOI: 10.1155/2016/8675905] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/11/2016] [Accepted: 06/29/2016] [Indexed: 12/19/2022] Open
Abstract
Macrophages are important components of adipose tissue inflammation, which results in metabolic diseases such as insulin resistance. Notably, obesity induces a proinflammatory phenotypic switch in adipose tissue macrophages, and oxidative stress facilitates this switch. Thus, we examined the role of endogenous catalase, a key regulator of oxidative stress, in the activity of adipose tissue macrophages in obese mice. Catalase knockout (CKO) exacerbated insulin resistance, amplified oxidative stress, and accelerated macrophage infiltration into epididymal white adipose tissue in mice on normal or high-fat diet. Interestingly, catalase deficiency also enhanced classical macrophage activation (M1) and inflammation but suppressed alternative activation (M2) regardless of diet. Similarly, pharmacological inhibition of catalase activity using 3-aminotriazole induced the same phenotypic switch and inflammatory response in RAW264.7 macrophages. Finally, the same phenotypic switch and inflammatory responses were observed in primary bone marrow-derived macrophages from CKO mice. Taken together, the data indicate that endogenous catalase regulates the polarization of adipose tissue macrophages and thereby inhibits inflammation and insulin resistance.
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88
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Abstract
SIGNIFICANCE Peroxisomes are organelles present in most eukaryotic cells. The organs with the highest density of peroxisomes are the liver and kidneys. Peroxisomes possess more than fifty enzymes and fulfill a multitude of biological tasks. They actively participate in apoptosis, innate immunity, and inflammation. In recent years, a considerable amount of evidence has been collected to support the involvement of peroxisomes in the pathogenesis of kidney injury. RECENT ADVANCES The nature of the two most important peroxisomal tasks, beta-oxidation of fatty acids and hydrogen peroxide turnover, functionally relates peroxisomes to mitochondria. Further support for their communication and cooperation is furnished by the evidence that both organelles share the components of their division machinery. Until recently, the majority of studies on the molecular mechanisms of kidney injury focused primarily on mitochondria and neglected peroxisomes. CRITICAL ISSUES The aim of this concise review is to introduce the reader to the field of peroxisome biology and to provide an overview of the evidence about the contribution of peroxisomes to the development and progression of kidney injury. The topics of renal ischemia-reperfusion injury, endotoxin-induced kidney injury, diabetic nephropathy, and tubulointerstitial fibrosis, as well as the potential therapeutic implications of peroxisome activation, are addressed in this review. FUTURE DIRECTIONS Despite recent progress, further studies are needed to elucidate the molecular mechanisms induced by dysfunctional peroxisomes and the role of the dysregulated mitochondria-peroxisome axis in the pathogenesis of renal injury. Antioxid. Redox Signal. 25, 217-231.
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Affiliation(s)
- Radovan Vasko
- Department of Nephrology and Rheumatology, University Medical Center Göttingen , Göttingen, Germany
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89
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Sohn M, Kim K, Uddin MJ, Lee G, Hwang I, Kang H, Kim H, Lee JH, Ha H. Delayed treatment with fenofibrate protects against high-fat diet-induced kidney injury in mice: the possible role of AMPK autophagy. Am J Physiol Renal Physiol 2016; 312:F323-F334. [PMID: 27465995 DOI: 10.1152/ajprenal.00596.2015] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 07/22/2016] [Indexed: 11/22/2022] Open
Abstract
Fenofibrate activates not only peroxisome proliferator-activated receptor-α (PPARα) but also adenosine monophosphate-activated protein kinase (AMPK). AMPK-mediated cellular responses protect kidney from high-fat diet (HFD)-induced injury, and autophagy resulting from AMPK activation has been regarded as a stress-response mechanism. Thus the present study examined the role of AMPK and autophagy in the renotherapeutic effects of fenofibrate. C57BL/6J mice were divided into three groups: normal diet (ND), HFD, and HFD + fenofibrate (HFD + FF). Fenofibrate was administered 4 wk after the initiation of the HFD when renal injury was initiated. Mouse proximal tubule cells (mProx24) were used to clarify the role of AMPK. Feeding mice with HFD for 12 wk induced insulin resistance and kidney injury such as albuminuria, glomerulosclerosis, tubular injury, and inflammation, which were effectively inhibited by fenofibrate. In addition, fenofibrate treatment resulted in the activation of renal AMPK, upregulation of fatty acid oxidation (FAO) enzymes and antioxidants, and induction of autophagy in the HFD mice. In mProx24 cells, fenofibrate activated AMPK in a concentration-dependent manner, upregulated FAO enzymes and antioxidants, and induced autophagy, all of which were inhibited by treatment of compound C, an AMPK inhibitor. Fenofibrate-induced autophagy was also significantly blocked by AMPKα1 siRNA but not by PPARα siRNA. Collectively, these results demonstrate that delayed treatment with fenofibrate has a therapeutic effect on HFD-induced kidney injury, at least in part, through the activation of AMPK and induction of subsequent downstream effectors: autophagy, FAO enzymes, and antioxidants.
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Affiliation(s)
- Minji Sohn
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Keumji Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Gayoung Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Inah Hwang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Hyeji Kang
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Hyunji Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Jung Hwa Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Korea
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90
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Deep Proteome Analysis Identifies Age-Related Processes in C. elegans. Cell Syst 2016; 3:144-159. [PMID: 27453442 PMCID: PMC5003814 DOI: 10.1016/j.cels.2016.06.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 05/11/2016] [Accepted: 06/21/2016] [Indexed: 11/22/2022]
Abstract
Effective network analysis of protein data requires high-quality proteomic datasets. Here, we report a near doubling in coverage of the C. elegans adult proteome, identifying >11,000 proteins in total with ∼9,400 proteins reproducibly detected in three biological replicates. Using quantitative mass spectrometry, we identify proteins whose abundances vary with age, revealing a concerted downregulation of proteins involved in specific metabolic pathways and upregulation of cellular stress responses with advancing age. Among these are ∼30 peroxisomal proteins, including the PRX-5/PEX5 import protein. Functional experiments confirm that protein import into the peroxisome is compromised in vivo in old animals. We also studied the behavior of the set of age-variant proteins in chronologically age-matched, long-lived daf-2 insulin/IGF-1-pathway mutants. Unexpectedly, the levels of many of these age-variant proteins did not scale with extended lifespan. This indicates that, despite their youthful appearance and extended lifespans, not all aspects of aging are reset in these long-lived mutants. Near doubling in C. elegans proteome coverage with age-dependent protein measurements Putative sub-cellular localization assignments for >6,000 nematode proteins Peroxisome protein import impaired during aging Most age-variant proteins do not scale with biological age in insulin/IGF-1 mutants
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91
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Abstract
SIGNIFICANCE A common link between all forms of acute and chronic kidney injuries, regardless of species, is enhanced generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) during injury/disease progression. While low levels of ROS and RNS are required for prosurvival signaling, cell proliferation and growth, and vasoreactivity regulation, an imbalance of ROS and RNS generation and elimination leads to inflammation, cell death, tissue damage, and disease/injury progression. RECENT ADVANCES Many aspects of renal oxidative stress still require investigation, including clarification of the mechanisms which prompt ROS/RNS generation and subsequent renal damage. However, we currently have a basic understanding of the major features of oxidative stress pathology and its link to kidney injury/disease, which this review summarizes. CRITICAL ISSUES The review summarizes the critical sources of oxidative stress in the kidney during injury/disease, including generation of ROS and RNS from mitochondria, NADPH oxidase, and inducible nitric oxide synthase. The review next summarizes the renal antioxidant systems that protect against oxidative stress, including superoxide dismutase and catalase, the glutathione and thioredoxin systems, and others. Next, we describe how oxidative stress affects kidney function and promotes damage in every nephron segment, including the renal vessels, glomeruli, and tubules. FUTURE DIRECTIONS Despite the limited success associated with the application of antioxidants for treatment of kidney injury/disease thus far, preventing the generation and accumulation of ROS and RNS provides an ideal target for potential therapeutic treatments. The review discusses the shortcomings of antioxidant treatments previously used and the potential promise of new ones. Antioxid. Redox Signal. 25, 119-146.
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Affiliation(s)
- Brian B Ratliff
- 1 Department of Medicine, Renal Research Institute , New York Medical College, Valhalla, New York.,2 Department of Physiology, Renal Research Institute , New York Medical College, Valhalla, New York
| | - Wasan Abdulmahdi
- 2 Department of Physiology, Renal Research Institute , New York Medical College, Valhalla, New York
| | - Rahul Pawar
- 1 Department of Medicine, Renal Research Institute , New York Medical College, Valhalla, New York
| | - Michael S Wolin
- 2 Department of Physiology, Renal Research Institute , New York Medical College, Valhalla, New York
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92
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Anti-interleukin-33 Reduces Ovalbumin-Induced Nephrotoxicity and Expression of Kidney Injury Molecule-1. Int Neurourol J 2016; 20:114-21. [PMID: 27377943 PMCID: PMC4932645 DOI: 10.5213/inj.1632578.289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 04/27/2016] [Indexed: 01/25/2023] Open
Abstract
Purpose: To evaluate the effect of anti-interleukin-33 (anti-IL-33) on a mouse model of ovalbumin (OVA)-induced acute kidney injury (AKI). Methods: Twenty-four female BALB/c mice were assigned to 4 groups: group A (control, n=6) was administered sterile saline intraperitoneally (i.p.) and intranasally (i.n.); group B (allergic, n=6) was administered i.p./i.n. OVA challenge; group C (null treatment, n=6) was administered control IgG i.p. before OVA challenge; and group D (anti-IL-33, n=6) was pretreated with 3.6 µg of anti-IL-33 i.p. before every OVA challenge. The following were evaluated after sacrifice: serum blood urea nitrogen and creatinine levels, Kidney injury molecule-1 gene (Kim-1) and protein (KIM-1) expression in renal parenchyma, and expression of cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), phosphorylated endothelial NOS (p-eNOS), and phosphorylated AMP kinase (p-AMPK) proteins in renal parenchyma. Results: After OVA injection and intranasal challenge, mice in groups B and C showed significant increases in the expression of Kim-1 at both the mRNA and protein levels. After anti-IL-33 treatment, mice in group D showed significant Kim-1 down-regulation at the mRNA and protein levels. Group D also showed significantly lower COX-2 protein expression, marginally lesser iNOS expression than groups B and C, and p-eNOS and p-AMPK expression at baseline levels. Conclusions: Kim-1 could be a useful marker for detecting early-stage renal injury in mouse models of OVA-induced AKI. Further, anti-IL-33 might have beneficial effects on these mouse models.
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93
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Novel Plasminogen Activator Inhibitor-1 Inhibitors Prevent Diabetic Kidney Injury in a Mouse Model. PLoS One 2016; 11:e0157012. [PMID: 27258009 PMCID: PMC4892642 DOI: 10.1371/journal.pone.0157012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 05/22/2016] [Indexed: 01/13/2023] Open
Abstract
Diabetic nephropathy is the leading cause of end-stage renal disease worldwide, but no effective therapeutic strategy is available. Because plasminogen activator inhibitor-1 (PAI-1) is increasingly recognized as a key factor in extracellular matrix (ECM) accumulation in diabetic nephropathy, this study examined the renoprotective effects of TM5275 and TM5441, two novel orally active PAI-1 inhibitors that do not trigger bleeding episodes, in streptozotocin (STZ)-induced diabetic mice. TM5275 (50 mg/kg) and TM5441 (10 mg/kg) were administered orally for 16 weeks to STZ-induced diabetic and age-matched control mice. Relative to the control mice, the diabetic mice showed significantly increased (p < 0.05) plasma glucose and creatinine levels, urinary albumin excretion, kidney-to-bodyweight ratios, glomerular volume, and fractional mesangial area. Markers of fibrosis and inflammation along with PAI-1 were also upregulated in the kidney of diabetic mice, and treatment with TM5275 and TM5441 effectively inhibited albuminuria, mesangial expansion, ECM accumulation, and macrophage infiltration in diabetic kidneys. Furthermore, in mouse proximal tubular epithelial (mProx24) cells, both TM5275 and TM5441 effectively inhibited PAI-1-induced mRNA expression of fibrosis and inflammation markers and also reversed PAI-1-induced inhibition of plasmin activity, which confirmed the efficacy of the TM compounds as PAI-1 inhibitors. These data suggest that TM compounds could be used to prevent diabetic kidney injury.
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94
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Zientara-Rytter K, Subramani S. Autophagic degradation of peroxisomes in mammals. Biochem Soc Trans 2016; 44:431-40. [PMID: 27068951 PMCID: PMC4958620 DOI: 10.1042/bst20150268] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 12/21/2022]
Abstract
Peroxisomes are essential organelles required for proper cell function in all eukaryotic organisms. They participate in a wide range of cellular processes including the metabolism of lipids and generation, as well as detoxification, of hydrogen peroxide (H2O2). Therefore, peroxisome homoeostasis, manifested by the precise and efficient control of peroxisome number and functionality, must be tightly regulated in response to environmental changes. Due to the existence of many physiological disorders and diseases associated with peroxisome homoeostasis imbalance, the dynamics of peroxisomes have been widely examined. The increasing volume of reports demonstrating significant involvement of the autophagy machinery in peroxisome removal leads us to summarize current knowledge of peroxisome degradation in mammalian cells. In this review we present current models of peroxisome degradation. We particularly focus on pexophagy-the selective clearance of peroxisomes through autophagy. We also critically discuss concepts of peroxisome recognition for pexophagy, including signalling and selectivity factors. Finally, we present examples of the pathological effects of pexophagy dysfunction and suggest promising future directions.
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Affiliation(s)
- Katarzyna Zientara-Rytter
- Section of Molecular Biology, Division of Biological Sciences, University California, San Diego, CA 92093-0322, U.S.A
| | - Suresh Subramani
- Section of Molecular Biology, Division of Biological Sciences, University California, San Diego, CA 92093-0322, U.S.A.
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95
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Roles of catalase and glutathione peroxidase in the tolerance of a pulmonate gastropod to anoxia and reoxygenation. J Comp Physiol B 2016; 186:553-68. [DOI: 10.1007/s00360-016-0982-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 03/10/2016] [Accepted: 03/19/2016] [Indexed: 01/05/2023]
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96
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Lei XG, Zhu JH, Cheng WH, Bao Y, Ho YS, Reddi AR, Holmgren A, Arnér ESJ. Paradoxical Roles of Antioxidant Enzymes: Basic Mechanisms and Health Implications. Physiol Rev 2016; 96:307-64. [PMID: 26681794 DOI: 10.1152/physrev.00010.2014] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are generated from aerobic metabolism, as a result of accidental electron leakage as well as regulated enzymatic processes. Because ROS/RNS can induce oxidative injury and act in redox signaling, enzymes metabolizing them will inherently promote either health or disease, depending on the physiological context. It is thus misleading to consider conventionally called antioxidant enzymes to be largely, if not exclusively, health protective. Because such a notion is nonetheless common, we herein attempt to rationalize why this simplistic view should be avoided. First we give an updated summary of physiological phenotypes triggered in mouse models of overexpression or knockout of major antioxidant enzymes. Subsequently, we focus on a series of striking cases that demonstrate "paradoxical" outcomes, i.e., increased fitness upon deletion of antioxidant enzymes or disease triggered by their overexpression. We elaborate mechanisms by which these phenotypes are mediated via chemical, biological, and metabolic interactions of the antioxidant enzymes with their substrates, downstream events, and cellular context. Furthermore, we propose that novel treatments of antioxidant enzyme-related human diseases may be enabled by deliberate targeting of dual roles of the pertaining enzymes. We also discuss the potential of "antioxidant" nutrients and phytochemicals, via regulating the expression or function of antioxidant enzymes, in preventing, treating, or aggravating chronic diseases. We conclude that "paradoxical" roles of antioxidant enzymes in physiology, health, and disease derive from sophisticated molecular mechanisms of redox biology and metabolic homeostasis. Simply viewing antioxidant enzymes as always being beneficial is not only conceptually misleading but also clinically hazardous if such notions underpin medical treatment protocols based on modulation of redox pathways.
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Affiliation(s)
- Xin Gen Lei
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jian-Hong Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Wen-Hsing Cheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Yongping Bao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ye-Shih Ho
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Amit R Reddi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Arne Holmgren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Elias S J Arnér
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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97
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Jo DS, Bae DJ, Park SJ, Seo HM, Kim HB, Oh JS, Chang JW, Kim SY, Shin JW, Cho DH. Pexophagy is induced by increasing peroxisomal reactive oxygen species in 1'10-phenanthroline-treated cells. Biochem Biophys Res Commun 2015; 467:354-60. [PMID: 26453011 DOI: 10.1016/j.bbrc.2015.09.153] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 09/28/2015] [Indexed: 01/24/2023]
Abstract
Although autophagy regulates the quality and quantity of cellular organelles, the regulatory mechanisms of peroxisomal autophagy remain largely unknown. In this study, we developed a cell-based image screening assay, and identified 1,10-phenanthroline (Phen) as a novel pexophagy inducer from chemical library screening. Treatment with Phen induces selective loss of peroxisomes but not endoplasmic reticulum and Golgi apparatus in hepatocytes. In addition, Phen increases autophagic engulfment of peroxisomes in an ATG5 dependent manner. Interestingly, treatment of Phen excessively produces peroxisomal reactive oxygen species (ROS), and inhibition of the ROS suppresses loss of peroxisome in Phen-treated cells. Taken together, these results suggest that Phen triggers pexophagy by enhancing peroxisomal ROS.
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Affiliation(s)
- Doo Sin Jo
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea
| | - Dong-Jun Bae
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - So Jung Park
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea
| | - Hae Mi Seo
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea
| | - Han Byeol Kim
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea
| | - Jeong Su Oh
- Department of Genetic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, South Korea
| | - Jong Wook Chang
- Research Institute for Future Medicine Stem Cell & Regenerative Medicine Center, Samsung Medical Center, Seoul, South Korea
| | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jung-Won Shin
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea.
| | - Dong-Hyung Cho
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Gyeonggi, South Korea.
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98
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Guo K, Lu J, Huang Y, Wu M, Zhang L, Yu H, Zhang M, Bao Y, He JC, Chen H, Jia W. Protective role of PGC-1α in diabetic nephropathy is associated with the inhibition of ROS through mitochondrial dynamic remodeling. PLoS One 2015; 10:e0125176. [PMID: 25853493 PMCID: PMC4390193 DOI: 10.1371/journal.pone.0125176] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 03/21/2015] [Indexed: 02/07/2023] Open
Abstract
The overproduction of mitochondrial reactive oxygen species (ROS) plays a key role in the pathogenesis of diabetic nephropathy (DN). However, the underlying molecular mechanism remains unclear. Our aim was to investigate the role of PGC-1α in the pathogenesis of DN. Rat glomerular mesangial cells (RMCs) were incubated in normal or high glucose medium with or without the PGC-1α-overexpressing plasmid (pcDNA3-PGC-1α) for 48 h. In the diabetic rats, decreased PGC-1α expression was associated with increased mitochondrial ROS generation in the renal cortex, increased proteinuria, glomerular hypertrophy, and higher glomerular 8-OHdG (a biomarker for oxidative stress). In vitro, hyperglycemia induced the downregulation of PGC-1α, which led to increased DRP1 expression, increased mitochondrial fragmentation and damaged network structure. This was associated with an increase in ROS generation and mesangial cell hypertrophy. These pathological changes were reversed in vitro by the transfection of pcDNA3-PGC-1α. These data suggest that PGC-1α may protect DN via the inhibition of DRP1-mediated mitochondrial dynamic remodeling and ROS production. These findings may assist the development of novel therapeutic strategies for patients with DN.
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Affiliation(s)
- Kaifeng Guo
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Junxi Lu
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Yan Huang
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Mian Wu
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Lei Zhang
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Haoyong Yu
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Mingliang Zhang
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - John Cijiang He
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
- Department of Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
- * E-mail: (HC); (WJ); (JCH)
| | - Haibing Chen
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
- * E-mail: (HC); (WJ); (JCH)
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
- * E-mail: (HC); (WJ); (JCH)
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99
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Gorin Y, Wauquier F. Upstream regulators and downstream effectors of NADPH oxidases as novel therapeutic targets for diabetic kidney disease. Mol Cells 2015; 38:285-96. [PMID: 25824546 PMCID: PMC4400302 DOI: 10.14348/molcells.2015.0010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress has been linked to the pathogenesis of diabetic nephropathy, the complication of diabetes in the kidney. NADPH oxidases of the Nox family, and in particular the homologue Nox4, are a major source of reactive oxygen species in the diabetic kidney and are critical mediators of redox signaling in glomerular and tubulointerstitial cells exposed to the diabetic milieu. Here, we present an overview of the current knowledge related to the understanding of the role of Nox enzymes in the processes that control mesangial cell, podocyte and tubulointerstitial cell injury induced by hyperglycemia and other predominant factors enhanced in the diabetic milieu, including the renin-angiotensin system and transforming growth factor-β. The nature of the upstream modulators of Nox enzymes as well as the downstream targets of the Nox NADPH oxidases implicated in the propagation of the redox processes that alter renal biology in diabetes will be highlighted.
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Affiliation(s)
- Yves Gorin
- Department of Medicine, University of Texas Health Science Center, San Antonio, Texas,
USA
| | - Fabien Wauquier
- Department of Medicine, University of Texas Health Science Center, San Antonio, Texas,
USA
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100
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Kharroubi AT, Darwish HM, Akkawi MA, Ashareef AA, Almasri ZA, Bader KA, Khammash UM. Total Antioxidant Status in Type 2 Diabetic Patients in Palestine. J Diabetes Res 2015; 2015:461271. [PMID: 26090472 PMCID: PMC4458273 DOI: 10.1155/2015/461271] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 05/11/2015] [Accepted: 05/12/2015] [Indexed: 12/16/2022] Open
Abstract
The objective of this study was to compare the level of total antioxidant status (TAS) in type 2 diabetic and normal Palestinian subjects as well as the major factors influencing TAS levels. A sample of convenience composed of 212 type 2 diabetic and 208 normal subjects above the age of 40 were recruited. Only 9.8% of the subjects had normal body mass index (BMI) levels (<25), 29% were overweight (≥25 to <30), and 61.2% were obese (≥30). The mean levels of TAS were significantly higher in diabetic compared to control subjects (2.18 versus 1.84 mM Trolox, P = 0.001) and in hypertensive subjects compared to subjects with normal blood pressure (BP). Mean TAS levels were higher in obese compared to nonobese subjects (2.12 versus 1.85 mM Trolox, P = 0.001). Mean TAS levels were similarly higher in subjects with high fasting plasma glucose (FPG) compared to normal FPG (2.19 versus 1.90 mM Trolox) and high HbA1c (≥6.5%) compared to HbA1c < 6.5% (2.14 versus 1.91 mM Trolox). Multivariate analysis revealed that only diabetic status (P = 0.032) and the level of education (P = 0.036) were significantly associated with TAS. In conclusion diabetic patients had 18.5% increase in TAS levels compared to control subjects.
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Affiliation(s)
- Akram T. Kharroubi
- Department of Medical Laboratory Sciences, Faculty of Health Professions, Al-Quds University, Jerusalem, State of Palestine
- *Akram T. Kharroubi:
| | - Hisham M. Darwish
- Department of Biochemistry, Faculty of Medicine, Al-Quds University, Jerusalem, State of Palestine
| | - Mutaz A. Akkawi
- Department of Biological Sciences, Faculty of Science and Technology, Al-Quds University, Jerusalem, State of Palestine
| | - Abdelkareem A. Ashareef
- Department of Biological Sciences, Faculty of Science and Technology, Al-Quds University, Jerusalem, State of Palestine
| | - Zaher A. Almasri
- Department of Biological Sciences, Faculty of Science and Technology, Al-Quds University, Jerusalem, State of Palestine
| | - Khaldoun A. Bader
- Faculty of Public Health, Al-Quds University, Jerusalem, State of Palestine
| | - Umaiyeh M. Khammash
- United Nation Relief and Works Agency (UNRWA), Jerusalem, State of Palestine
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