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Bletsa E, Filippas-Dekouan S, Kostara C, Dafopoulos P, Dimou A, Pappa E, Chasapi S, Spyroulias G, Koutsovasilis A, Bairaktari E, Ferrannini E, Tsimihodimos V. Effect of Dapagliflozin on Urine Metabolome in Patients with Type 2 Diabetes. J Clin Endocrinol Metab 2021; 106:1269-1283. [PMID: 33592103 PMCID: PMC8063232 DOI: 10.1210/clinem/dgab086] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Indexed: 01/01/2023]
Abstract
CONTEXT Inhibitors of sodium-glucose cotransporters-2 have cardio- and renoprotective properties. However, the underlying mechanisms remain indeterminate. OBJECTIVE To evaluate the effect of dapagliflozin on renal metabolism assessed by urine metabolome analysis in patients with type 2 diabetes. DESIGN Prospective cohort study. SETTING Outpatient diabetes clinic of a tertiary academic center. PATIENTS Eighty patients with hemoglobin A1c > 7% on metformin monotherapy were prospectively enrolled. INTERVENTION Fifty patients were treated with dapagliflozin for 3 months. To exclude that the changes observed in urine metabolome were merely the result of the improvement in glycemia, 30 patients treated with insulin degludec were used for comparison. MAIN OUTCOME MEASURE Changes in urine metabolic profile before and after the administration of dapagliflozin and insulin degludec were assessed by proton-nuclear magnetic resonance spectroscopy. RESULTS In multivariate analysis urine metabolome was significantly altered by dapagliflozin (R2X = 0.819, R2Y = 0.627, Q2Y = 0.362, and coefficient of variation analysis of variance, P < 0.001) but not insulin. After dapagliflozin, the urine concentrations of ketone bodies, lactate, branched chain amino acids (P < 0.001), betaine, myo-inositol (P < 0001), and N-methylhydantoin (P < 0.005) were significantly increased. Additionally, the urine levels of alanine, creatine, sarcosine, and citrate were also increased (P < 0001, P <0.0001, and P <0.0005, respectively) whereas anserine decreased (P < 0005). CONCLUSIONS Dapagliflozin significantly affects urine metabolome in patients with type 2 diabetes in a glucose lowering-independent way. Most of the observed changes can be considered beneficial and may contribute to the renoprotective properties of dapagliflozin.
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Affiliation(s)
- Evdoxia Bletsa
- Third Internal Medicine Department, General Hospital of Nikaia, Athens, Greece
| | | | - Christina Kostara
- Laboratory of Clinical Chemistry, University of Ioannina, Ioannina, Greece
| | | | - Aikaterini Dimou
- Laboratory of Clinical Chemistry, University of Ioannina, Ioannina, Greece
| | - Eleni Pappa
- Department of Internal Medicine, University of Ioannina, Ioannina, Greece
| | | | | | | | - Eleni Bairaktari
- Laboratory of Clinical Chemistry, University of Ioannina, Ioannina, Greece
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252
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Prieto-Carrasco R, García-Arroyo FE, Aparicio-Trejo OE, Rojas-Morales P, León-Contreras JC, Hernández-Pando R, Sánchez-Lozada LG, Tapia E, Pedraza-Chaverri J. Progressive Reduction in Mitochondrial Mass Is Triggered by Alterations in Mitochondrial Biogenesis and Dynamics in Chronic Kidney Disease Induced by 5/6 Nephrectomy. BIOLOGY 2021; 10:349. [PMID: 33919054 PMCID: PMC8143166 DOI: 10.3390/biology10050349] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 12/17/2022]
Abstract
The five-sixth nephrectomy (5/6Nx) model is widely used to study the mechanisms involved in chronic kidney disease (CKD) progression. Mitochondrial impairment is a critical mechanism that favors CKD progression. However, until now, there are no temporal studies of the change in mitochondrial biogenesis and dynamics that allow determining the role of these processes in mitochondrial impairment and renal damage progression in the 5/6Nx model. In this work, we determined the changes in mitochondrial biogenesis and dynamics markers in remnant renal mass from days 2 to 28 after 5/6Nx. Our results show a progressive reduction in mitochondrial biogenesis triggered by reducing two principal regulators of mitochondrial protein expression, the peroxisome proliferator-activated receptor-gamma coactivator 1-alpha and the peroxisome proliferator-activated receptor alpha. Furthermore, the reduction in mitochondrial biogenesis proteins strongly correlates with the increase in renal damage markers. Additionally, we found a slow and gradual change in mitochondrial dynamics from fusion to fission, favoring mitochondrial fragmentation at later stages after 5/6Nx. Together, our results suggest that 5/6Nx induces the progressive reduction in mitochondrial mass over time via the decrease in mitochondrial biogenesis factors and a slow shift from mitochondrial fission to fusion; both mechanisms favor CKD progression in the remnant renal mass.
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Affiliation(s)
- Rodrigo Prieto-Carrasco
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (R.P.-C.); (O.E.A.-T.); (P.R.-M.)
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - Fernando E. García-Arroyo
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - Omar Emiliano Aparicio-Trejo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (R.P.-C.); (O.E.A.-T.); (P.R.-M.)
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - Pedro Rojas-Morales
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (R.P.-C.); (O.E.A.-T.); (P.R.-M.)
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Laura Gabriela Sánchez-Lozada
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - Edilia Tapia
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (F.E.G.-A.); (L.G.S.-L.); (E.T.)
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (R.P.-C.); (O.E.A.-T.); (P.R.-M.)
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253
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Afsar B, Hornum M, Afsar RE, Ertuglu LA, Ortiz A, Covic A, van Raalte DH, Cherney DZI, Kanbay M. Mitochondrion-driven nephroprotective mechanisms of novel glucose lowering medications. Mitochondrion 2021; 58:72-82. [PMID: 33677060 DOI: 10.1016/j.mito.2021.02.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/26/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023]
Abstract
Therapy for diabetic kidney disease (DKD) is undergoing a revolution with the realization that some glucose-lowering drugs have nephroprotective actions that may be intrinsic to the drugs and not dependent on the impact on diabetes control, as demonstrated with the sodium glucose co-transporter-2 (SGLT-2) inhibitors. Mitochondria are a critical factor required for the maintenance of kidney function, given its high energy demanding profile, with extensive use of adenosine triphosphate (ATP). Consequently, deficiency of the master regulator of mitochondrial biogenesis peroxisome proliferator-activated receptor gamma coactivator 1α predisposes to kidney disease. Perhaps as a result of key role of mitochondria in fundamental cellular functions, mitochondrial dysfunction may play a role in the pathogenesis of common conditions such as DKD. Finding pharmacological agents to influence this pathway could therefore lead to early implementation of therapy. Importantly, glucose-lowering drugs such as glucagon-like peptide-1 receptor activators and SGLT2 inhibitors have kidney and/or cardioprotective actions in patients with diabetes. Accumulating evidence from preclinical studies has suggested a protective effect of these drugs that is in part mediated by normalizing mitochondrial function. We now critically review this evidence and discuss studies needed to confirm mitochondrial protective benefits across a range of clinical studies.
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Affiliation(s)
- Baris Afsar
- Division of Nephrology, Department of Internal Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey.
| | - Mads Hornum
- Department of Nephrology, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Rengin Elsurer Afsar
- Division of Nephrology, Department of Internal Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Lale A Ertuglu
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Alberto Ortiz
- IIS-Fundacion Jimenez Diaz, Department of Medicine, School of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Adrian Covic
- Department of Nephrology, Grigore T. Popa' University of Medicine, Iasi, Romania
| | - Daniel H van Raalte
- Diabetes Center, Department of Internal Medicine, Amsterdam University Medical Center, Loaction VUMC, Amsterdam, the Netherlands
| | - David Z I Cherney
- Toronto General Hospital Research Institute, UHN, Toronto, Canada; Departments of Physiology and Pharmacology and Toxicology, University of Toronto, Ontario, Canada
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
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254
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Kengkoom K, Angkhasirisap W, Kanjanapruthipong T, Tungtrakanpoung R, Tuentam K, Phansom N, Ampawong S. Streptozotocin induces alpha-2u globulin nephropathy in male rats during diabetic kidney disease. BMC Vet Res 2021; 17:105. [PMID: 33663503 PMCID: PMC7934450 DOI: 10.1186/s12917-021-02814-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 02/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Alpha-2u globulin nephropathy mainly shows toxicological pathology only in male rats induced by certain chemicals and drugs, such as levamisole (antiparasitic and anticancer drugs). Streptozotocin (STZ) is also an anticancer-antibiotic agent that has been used for decades to induce a diabetic kidney disease model in rodents. The purpose of this study is to determine if STZ causes alpha-2u globulin nephropathy in male rats during an advanced stage of diabetic kidney disease. Alpha-2u globulin nephropathy, water absorption and filtration capacities (via aquaporin [AQP]-1, - 2, - 4 and - 5) and mitochondrial function (through haloacid dehalogenase-like hydrolase domain-containing protein [HDHD]-3 and NADH-ubiquinone oxidoreductase 75 kDa subunit [NDUFS]-1 proteins) were examined in STZ-induced diabetic Wistar rat model. RESULTS More than 80% of severe clinical illness rats induced by STZ injection simultaneously exhibited alpha-2u globulin nephropathy with mitochondrial degeneration and filtration apparatus especially pedicels impairment. They also showed significantly upregulated AQP-1, - 2, - 4 and - 5, HDHD-3 and NDUFS-1 compared with those of the rats without alpha-2u globulin nephropathy. CONCLUSIONS STZ-induced alpha-2u globulin nephropathy during diabetic kidney disease in association with deterioration of pedicels, renal tubular damage with adaptation and mitochondrial driven apoptosis.
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Affiliation(s)
- Kanchana Kengkoom
- Academic Service Division, National Laboratory Animal Center, Mahidol University, 999, Salaya, Puttamonthon, Nakorn Pathom, 73170 Thailand
| | - Wannee Angkhasirisap
- Academic Service Division, National Laboratory Animal Center, Mahidol University, 999, Salaya, Puttamonthon, Nakorn Pathom, 73170 Thailand
| | - Tapanee Kanjanapruthipong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, 420/6, Ratchawithi Road, Ratchathewi, Bangkok, 10400 Thailand
| | - Rongdej Tungtrakanpoung
- Department of Biology, Faculty of Science, Naresuan University, 99, Moo 9, Phitsanulok-NakornSawan Road, Phitsanulok, 65000 Thailand
| | - Khwanchanok Tuentam
- Department of Biology, Faculty of Science, Naresuan University, 99, Moo 9, Phitsanulok-NakornSawan Road, Phitsanulok, 65000 Thailand
| | - Naphatson Phansom
- Department of Biology, Faculty of Science, Naresuan University, 99, Moo 9, Phitsanulok-NakornSawan Road, Phitsanulok, 65000 Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, 420/6, Ratchawithi Road, Ratchathewi, Bangkok, 10400 Thailand
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255
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Gu X, Liu Y, Wang N, Zhen J, Zhang B, Hou S, Cui Z, Wan Q, Feng H. Transcription of MRPL12 regulated by Nrf2 contributes to the mitochondrial dysfunction in diabetic kidney disease. Free Radic Biol Med 2021; 164:329-340. [PMID: 33444714 DOI: 10.1016/j.freeradbiomed.2021.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 02/06/2023]
Abstract
Diabetic kidney disease (DKD) is the leading cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD). Increasing evidences suggested that DKD correlates more closely to mitochondrial dysfunction than to hyperglycemia. Our previous study has reported that mitochondrial ribosomal protein L7/L12 (MRPL12) could positively control the mitochondrial oxidative phosphorylation (OXPHOS) and mtDNA copy number. The present study further investigated the role of MRPL12 in mitochondrial dysfunction of DKD. Using a mass spectrometry-based proteomics and immunohistochemistry, we found that MRPL12 underwent significant decreases in diabetic kidneys. Moreover, decreased expression of MRPL12 was associated with reduced mitochondrial OXPHOS in proximal tubular epithelial cells (PTECs) and overexpression of MRPL12 could alleviated the impairment of OXPHOS induced by long term high glucose. We further explored the upstream mechanism and identified nuclear factor erythroid 2-related factor 2 (Nrf2) as a potential transcription factor for MRPL12. Nrf2 changes consistently with MRPL12 in DKD and correlates with alterations of mitochondrial function, fibrosis and apoptosis of PTECs treated with high glucose challenge. Thus, the role of MRPL12 in the maintenance of mitochondrial function in DKD may be regulated by Nrf2, and provides new potential therapeutic targets for DKD.
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Affiliation(s)
- Xia Gu
- School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Yi Liu
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Na Wang
- Medical Department, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Junhui Zhen
- School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Bo Zhang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Shaoshuai Hou
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Zhengguo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Qiang Wan
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
| | - Hong Feng
- Cancer Center, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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256
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Huang C, Yi H, Shi Y, Cao Q, Shi Y, Cheng D, Braet F, Chen XM, Pollock CA. KCa3.1 Mediates Dysregulation of Mitochondrial Quality Control in Diabetic Kidney Disease. Front Cell Dev Biol 2021; 9:573814. [PMID: 33681190 PMCID: PMC7933228 DOI: 10.3389/fcell.2021.573814] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 02/03/2021] [Indexed: 12/19/2022] Open
Abstract
Mitochondrial dysfunction is implicated in the pathogenesis of diabetic kidney disease. Mitochondrial quality control is primarily mediated by mitochondrial turnover and repair through mitochondrial fission/fusion and mitophagy. We have previously shown that blockade of the calcium-activated potassium channel KCa3.1 ameliorates diabetic renal fibrosis. However, the mechanistic link between KCa3.1 and mitochondrial quality control in diabetic kidney disease is not yet known. Transforming growth factor β1 (TGF-β1) plays a central role in diabetic kidney disease. Recent studies indicate an emerging role of TGF-β1 in the regulation of mitochondrial function. However, the molecular mechanism mediating mitochondrial quality control in response to TGF-β1 remains limited. In this study, mitochondrial function was assessed in TGF-β1-exposed renal proximal tubular epithelial cells (HK2 cells) transfected with scrambled siRNA or KCa3.1 siRNA. In vivo, diabetes was induced in KCa3.1+/+ and KCa3.1−/− mice by low-dose streptozotocin (STZ) injection. Mitochondrial fission/fusion-related proteins and mitophagy markers, as well as BCL2 interacting protein 3 (BNIP3) (a mitophagy regulator) were examined in HK2 cells and diabetic mice kidneys. The in vitro results showed that TGF-β1 significantly inhibited mitochondrial ATP production rate and increased mitochondrial ROS (mtROS) production when compared to control, which was normalized by KCa3.1 gene silencing. Increased fission and suppressed fusion were found in both TGF-β1-treated HK2 cells and diabetic mice, which were reversed by KCa3.1 deficiency. Furthermore, our results showed that mitophagy was inhibited in both in vitro and in vivo models of diabetic kidney disease. KCa3.1 deficiency restored abnormal mitophagy by inhibiting BNIP3 expression in TGF-β1-induced HK2 cells as well as in the diabetic mice. Collectively, these results indicate that KCa3.1 mediates the dysregulation of mitochondrial quality control in diabetic kidney disease.
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Affiliation(s)
- Chunling Huang
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Hao Yi
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Ying Shi
- Division of Nephrology, School of Medicine, Stanford University, Stanford, CA, United States
| | - Qinghua Cao
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Yin Shi
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Delfine Cheng
- Discipline of Anatomy and Histology, School of Medical Sciences, Faculty of Medicine and Health, The Bosch Institute, University of Sydney, Sydney, NSW, Australia
| | - Filip Braet
- Discipline of Anatomy and Histology, School of Medical Sciences, Faculty of Medicine and Health, The Bosch Institute, University of Sydney, Sydney, NSW, Australia.,Australian Centre for Microscopy and Microanalysis, University of Sydney, Sydney, NSW, Australia
| | - Xin-Ming Chen
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Carol A Pollock
- Kolling Institute, Sydney Medical School Northern, Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, Sydney, NSW, Australia
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257
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Abstract
Hypertension is a leading risk factor for disease burden worldwide. The kidneys, which have a high specific metabolic rate, play an essential role in the long-term regulation of arterial blood pressure. In this review, we discuss the emerging role of renal metabolism in the development of hypertension. Renal energy and substrate metabolism is characterized by several important and, in some cases, unique features. Recent advances suggest that alterations of renal metabolism may result from genetic abnormalities or serve initially as a physiological response to environmental stressors to support tubular transport, which may ultimately affect regulatory pathways and lead to unfavorable cellular and pathophysiological consequences that contribute to the development of hypertension.
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Affiliation(s)
- Zhongmin Tian
- grid.43169.390000 0001 0599 1243The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi China
| | - Mingyu Liang
- grid.30760.320000 0001 2111 8460Center of Systems Molecular Medicine, Department of Physiology, Medical College of Wisconsin, Milwaukee, WI USA
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258
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Walther CP, Ix JH, Biggs ML, Kizer JR, Navaneethan SD, Djoussé L, Mukamal KJ. Nonesterified Fatty Acids and Kidney Function Decline in Older Adults: Findings From the Cardiovascular Health Study. Am J Kidney Dis 2021; 78:259-267. [PMID: 33548344 DOI: 10.1053/j.ajkd.2020.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/30/2020] [Indexed: 11/11/2022]
Abstract
RATIONALE & OBJECTIVE Circulating nonesterified fatty acids (NEFAs) make up a small portion of circulating lipids but are a metabolically important energy source. Excessive circulating NEFAs may contribute to lipotoxicity in many tissues, including the kidneys. We investigated the relationship between total circulating NEFA concentration and kidney outcomes in older, community-dwelling adults. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS 4,698 participants≥65 years of age in the Cardiovascular Health Study who underwent total fasting serum NEFA concentration measurements in 1992-1993. EXPOSURE Fasting serum NEFA concentration at one time point. OUTCOME Three primary outcomes: estimated glomerular filtration rate (eGFR) decline of≥30%, the composite of eGFR decline≥30% or kidney failure with replacement therapy, and change in eGFR. These outcomes were assessed over 4- and 13-year periods. ANALYTICAL APPROACH Logistic regression for the dichotomous outcomes and mixed effects models for the continuous outcome, with sequential adjustment for baseline covariates. Inverse probability of attrition weighting was implemented to account for informative attrition during the follow-up periods. RESULTS Serum NEFA concentrations were not independently associated with kidney outcomes. In unadjusted and partially adjusted analyses, the highest quartile of serum NEFA concentration (compared with lowest) was associated with a higher risk of≥30% eGFR decline at 4 years and faster rate of decline of eGFR. No associations were evident after adjustment for comorbidities, lipid levels, insulin sensitivity, medications, and vital signs: the odds ratio for the eGFR decline outcome was 1.33 (95% CI, 0.83-2.13), and the difference in eGFR slope in the highest versus lowest quartile of serum NEFA concentration was-0.15 (95% CI, -0.36 to 0.06) mL/min/1.73m2 per year. LIMITATIONS Single NEFA measurements, no measurements of post-glucose load NEFA concentrations or individual NEFA species, no measurement of baseline urine albumin. CONCLUSIONS A single fasting serum NEFA concentration was not independently associated with long-term adverse kidney outcomes in a cohort of older community-living adults.
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Affiliation(s)
- Carl P Walther
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX.
| | - Joachim H Ix
- Nephrology Section, Veterans Affairs San Diego Healthcare System, and Division of Nephrology-Hypertension, University of California-San Diego, La Jolla, CA
| | - Mary L Biggs
- Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA
| | - Jorge R Kizer
- Cardiology Section, San Francisco Veterans Affairs Healthcare System, and Departments of Medicine, Epidemiology and Biostatistics, University of California-San Francisco, San Francisco, CA
| | - Sankar D Navaneethan
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX; Section of Nephrology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
| | - Luc Djoussé
- Division of Aging, Department of Medicine, Brigham and Women's Hospital, and Boston Veterans Affairs Healthcare System, Boston, MA
| | - Kenneth J Mukamal
- Division of General Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
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259
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Li L, Yang J, Li F, Gao F, Zhu L, Hao J. FBXW7 mediates high glucose‑induced SREBP‑1 expression in renal tubular cells of diabetic nephropathy under PI3K/Akt pathway regulation. Mol Med Rep 2021; 23:233. [PMID: 33537812 PMCID: PMC7893693 DOI: 10.3892/mmr.2021.11872] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Diabetic nephropathy (DN) is a severe complication of diabetes mellitus and lipid metabolism abnormality serves a key role in the pathogenesis of DN. Sterol regulatory element-binding protein 1 (SREBP-1) overexpression mediates aberrant lipid accumulation in renal tubular cells of DN. However, the exact mechanism involved in increased SREBP-1 has not been fully elucidated. The aim of the present study was to explore the mechanism involved in SREBP-1 upregulation. Diabetic mice and high glucose-cultured HKC cells were chosen to detect the expression of FBXW7 and SREBP-1 using immunohistochemistry, western blotting and PCR. The present study demonstrated that F-box and WD repeat domain containing 7 (FBXW7) expression was decreased in renal tubular cells of diabetic mice. Moreover, the co-expression of FBXW7 and SREBP-1 was observed in renal tubular cells, but not in the glomeruli. High glucose-induced the downregulation of FBXW7 expression in in vitro cultured HKC cells, which was accompanied by SREBP-1 upregulation. In addition, overexpression of FBXW7 in HKC cells led to SREBP-1 downregulation. By contrast, knockdown of FBXW7 caused SREBP-1 upregulation in HKC cells. It was found that the PI3K/Akt signaling pathway was activated in high glucose-stimulated HKC cells, and inhibition of PI3K/Akt pathway using LY294002 increased FBXW7 expression and decreased SREBP-1 expression. Taken together, the present results suggested that FBXW7 mediated high glucose-induced SREBP-1 expression in renal tubular cells of DN, under the regulation of the PI3K/Akt signaling pathway.
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Affiliation(s)
- Lisha Li
- Department of Pathology, Cangzhou Hospital of Integrated TCM‑WM, Cangzhou, Hebei 061001, P.R. China
| | - Juxiang Yang
- The Office of Basic Medical College, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Fan Li
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Fan Gao
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Lin Zhu
- Department of Electromyogram, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050001, P.R. China
| | - Jun Hao
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
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260
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Huang C, Bian J, Cao Q, Chen XM, Pollock CA. The Mitochondrial Kinase PINK1 in Diabetic Kidney Disease. Int J Mol Sci 2021; 22:ijms22041525. [PMID: 33546409 PMCID: PMC7913536 DOI: 10.3390/ijms22041525] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 02/07/2023] Open
Abstract
Mitochondria are critical organelles that play a key role in cellular metabolism, survival, and homeostasis. Mitochondrial dysfunction has been implicated in the pathogenesis of diabetic kidney disease. The function of mitochondria is critically regulated by several mitochondrial protein kinases, including the phosphatase and tensin homolog (PTEN)-induced kinase 1 (PINK1). The focus of PINK1 research has been centered on neuronal diseases. Recent studies have revealed a close link between PINK1 and many other diseases including kidney diseases. This review will provide a concise summary of PINK1 and its regulation of mitochondrial function in health and disease. The physiological role of PINK1 in the major cells involved in diabetic kidney disease including proximal tubular cells and podocytes will also be summarized. Collectively, these studies suggested that targeting PINK1 may offer a promising alternative for the treatment of diabetic kidney disease.
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Affiliation(s)
- Chunling Huang
- Correspondence: (C.H.); (C.A.P.); Tel.: +61-2-9926-4784 (C.H.); +61-2-9926-4652 (C.A.P.)
| | | | | | | | - Carol A. Pollock
- Correspondence: (C.H.); (C.A.P.); Tel.: +61-2-9926-4784 (C.H.); +61-2-9926-4652 (C.A.P.)
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261
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Liebman SE, Le TH. Eat Your Broccoli: Oxidative Stress, NRF2, and Sulforaphane in Chronic Kidney Disease. Nutrients 2021; 13:nu13010266. [PMID: 33477669 PMCID: PMC7831909 DOI: 10.3390/nu13010266] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/31/2020] [Accepted: 01/15/2021] [Indexed: 12/16/2022] Open
Abstract
The mainstay of therapy for chronic kidney disease is control of blood pressure and proteinuria through the use of angiotensin-converting enzyme inhibitors (ACE-Is) or angiotensin receptor blockers (ARBs) that were introduced more than 20 years ago. Yet, many chronic kidney disease (CKD) patients still progress to end-stage kidney disease—the ultimate in failed prevention. While increased oxidative stress is a major molecular underpinning of CKD progression, no treatment modality specifically targeting oxidative stress has been established clinically. Here, we review the influence of oxidative stress in CKD, and discuss regarding the role of the Nrf2 pathway in kidney disease from studies using genetic and pharmacologic approaches in animal models and clinical trials. We will then focus on the promising therapeutic potential of sulforaphane, an isothiocyanate derived from cruciferous vegetables that has garnered significant attention over the past decade for its potent Nrf2-activating effect, and implications for precision medicine.
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262
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Hong YA, Park CW. Catalytic Antioxidants in the Kidney. Antioxidants (Basel) 2021; 10:antiox10010130. [PMID: 33477607 PMCID: PMC7831323 DOI: 10.3390/antiox10010130] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/09/2021] [Accepted: 01/12/2021] [Indexed: 02/08/2023] Open
Abstract
Reactive oxygen species and reactive nitrogen species are highly implicated in kidney injuries that include acute kidney injury, chronic kidney disease, hypertensive nephropathy, and diabetic nephropathy. Therefore, antioxidant agents are promising therapeutic strategies for kidney diseases. Catalytic antioxidants are defined as small molecular mimics of antioxidant enzymes, such as superoxide dismutase, catalase, and glutathione peroxidase, and some of them function as potent detoxifiers of lipid peroxides and peroxynitrite. Several catalytic antioxidants have been demonstrated to be effective in a variety of in vitro and in vivo disease models that are associated with oxidative stress, including kidney diseases. This review summarizes the evidence for the role of antioxidant enzymes in kidney diseases, the classifications of catalytic antioxidants, and their current applications to kidney diseases.
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Affiliation(s)
- Yu Ah Hong
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Cheol Whee Park
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
- Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-2-2258-6038
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263
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Kim K, Cha SJ, Choi HJ, Kang JS, Lee EY. Dysfunction of Mitochondrial Dynamics in Drosophila Model of Diabetic Nephropathy. Life (Basel) 2021; 11:life11010067. [PMID: 33477666 PMCID: PMC7831917 DOI: 10.3390/life11010067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 01/05/2023] Open
Abstract
Although mitochondrial dysfunction is associated with the development and progression of diabetic nephropathy (DN), its mechanisms are poorly understood, and it remains debatable whether mitochondrial morphological change is a cause of DN. In this study, a Drosophila DN model was established by treating a chronic high-sucrose diet that exhibits similar phenotypes in animals. Results showed that flies fed a chronic high-sucrose diet exhibited a reduction in lifespan, as well as increased lipid droplets in fat body tissue. Furthermore, the chronic high-sucrose diet effectively induced the morphological abnormalities of nephrocytes in Drosophila. High-sucrose diet induced mitochondria fusion in nephrocytes by increasing Opa1 and Marf expression. These findings establish Drosophila as a useful model for studying novel regulators and molecular mechanisms for imbalanced mitochondrial dynamics in the pathogenesis of DN. Furthermore, understanding the pathology of mitochondrial dysfunction regarding morphological changes in DN would facilitate the development of novel therapeutics.
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Affiliation(s)
- Kiyoung Kim
- Department of Medical Biotechnology, Soonchunhyang University, Asan 31538, Korea
- Department of Medical Sciences, Soonchunhyang University, Asan 31538, Korea;
- Correspondence: (K.K.); (E.Y.L.); Tel.: +82-41-413-5024 (K.K.); +82-41-570-3684 (E.Y.L.); Fax: +82-41-413-5006 (K.K. & E.Y.L.)
| | - Sun Joo Cha
- Department of Medical Sciences, Soonchunhyang University, Asan 31538, Korea;
| | - Hyun-Jun Choi
- Department of Integrated Biomedical Sciences, Soonchunhyang University, Cheonan 31151, Korea;
| | - Jeong Suk Kang
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Korea;
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
| | - Eun Young Lee
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Korea;
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
- BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
- Correspondence: (K.K.); (E.Y.L.); Tel.: +82-41-413-5024 (K.K.); +82-41-570-3684 (E.Y.L.); Fax: +82-41-413-5006 (K.K. & E.Y.L.)
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Abstract
PURPOSE OF REVIEW Diabetic kidney disease (DKD) continues to be the primary cause of chronic kidney disease in the USA and around the world. The numbers of people with DKD also continue to rise despite current treatments. Certain newer hypoglycemic drugs offer a promise of slowing progression, but it remains to be seen how effective these will be over time. Thus, continued exploration of the mechanisms underlying the development and progression of DKD is essential in order to discover new treatments. Hyperglycemia is the main cause of the cellular damage seen in DKD. But, exactly how hyperglycemia leads to the activation of processes that are ultimately deleterious is incompletely understood. RECENT FINDINGS Studies primarily over the past 10 years have provided novel insights into the interplay of hyperglycemia, glucose metabolic pathways, mitochondrial function, and the potential importance of what has been called the Warburg effect on the development and progression of DKD. This review will provide a brief overview of glucose metabolism and the hypotheses concerning the pathogenesis of DKD and then discuss in more detail the supporting data that indicate a role for the interplay of glucose metabolic pathways and mitochondrial function.
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Affiliation(s)
- Robert C Stanton
- Kidney and Hypertension Section, Joslin Diabetes Center; Beth Israel Deaconess Medical Center, and Harvard Medical School; Joslin Diabetes Center, One Joslin Place, Boston, MA, 02215, USA.
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265
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Zhang PN, Zhou MQ, Guo J, Zheng HJ, Tang J, Zhang C, Liu YN, Liu WJ, Wang YX. Mitochondrial Dysfunction and Diabetic Nephropathy: Nontraditional Therapeutic Opportunities. J Diabetes Res 2021; 2021:1010268. [PMID: 34926696 PMCID: PMC8677373 DOI: 10.1155/2021/1010268] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/02/2021] [Indexed: 12/12/2022] Open
Abstract
Diabetic nephropathy (DN) is a progressive microvascular diabetic complication. Growing evidence shows that persistent mitochondrial dysfunction contributes to the progression of renal diseases, including DN, as it alters mitochondrial homeostasis and, in turn, affects normal kidney function. Pharmacological regulation of mitochondrial networking is a promising therapeutic strategy for preventing and restoring renal function in DN. In this review, we have surveyed recent advances in elucidating the mitochondrial networking and signaling pathways in physiological and pathological contexts. Additionally, we have considered the contributions of nontraditional therapy that ameliorate mitochondrial dysfunction and discussed their molecular mechanism, highlighting the potential value of nontraditional therapies, such as herbal medicine and lifestyle interventions, in therapeutic interventions for DN. The generation of new insights using mitochondrial networking will facilitate further investigations on nontraditional therapies for DN.
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Affiliation(s)
- Ping Na Zhang
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Meng Qi Zhou
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Jing Guo
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Hui Juan Zheng
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Jingyi Tang
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Chao Zhang
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Yu Ning Liu
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
| | - Wei Jing Liu
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
- Institute of Nephrology and Zhanjiang Key Laboratory of Prevention and Management of Chronic Kidney Disease, Guangdong Medical University, Zhanjiang, China
| | - Yao Xian Wang
- Renal Research Institution of Beijing University of Chinese Medicine and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Shipping Warehouse No. 5, Beijing 100700, China
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266
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Liu X, Zhang X, Cai X, Dong J, Chi Y, Chi Z, Gu HF. Effects of Curcumin on High Glucose-Induced Epithelial-to-Mesenchymal Transition in Renal Tubular Epithelial Cells Through the TLR4-NF-κB Signaling Pathway. Diabetes Metab Syndr Obes 2021; 14:929-940. [PMID: 33688227 PMCID: PMC7936700 DOI: 10.2147/dmso.s296990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/03/2021] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Diabetic kidney disease (DKD) is a microvascular complication in diabetes mellitus, while tubuloepithelial to mesenchymal transition (EMT) of mature tubular epithelial cells is a key point in the early development and progression of renal interstitial fibrosis. The present study aimed to investigate the protective effects of Curcumin on EMT and fibrosis in cultured normal rat kidney tubular epithelial cell line (NRK-52E). METHODS By using immunofluorescence staining and Western blot protocols, in vitro experiments were designed to analyze EMT markers, including collagen I and E-cadherin in high glucose (HG) exposed NRK-52E cells and to detect the expression levels of phosphorylated-NF-κB, TLR4 and reactive oxygen species (ROS) after Curcumin pre-treatment. With co-treatment with TAK242, these molecules in the TLR4-NF-κB signaling pathway were further evaluated. RESULTS Curcumin decreased the HG-induced EMT levels and ROS production in NRK-52E cells. Furthermore, Curcumin was found to inhibit the TLR4-NF-κB signaling activation in HG-induced EMT of NRK-52E cells. CONCLUSION The present study provides evidence suggesting a novel mechanism that Curcumin exerts the anti-fibrosis effects via inhibiting activation of the TLR4-NF-κB signal pathway and consequently protecting the HG-induced EMT in renal tubular epithelial cells. Thereby, TLR4-NF-κB may be a useful target for therapeutic intervention in DKD.
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Affiliation(s)
- Xinhui Liu
- Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning Province, 110847, People’s Republic of China
| | - Xiuli Zhang
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
- Correspondence: Xiuli Zhang Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China Email
| | - Xiaoyi Cai
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
| | - Jiqiu Dong
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
| | - Yinmao Chi
- Department of Physiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, 210009, People’s Republic of China
- Harvest F Gu Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, 210009, People’s Republic of China Email
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267
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Jayaraj RL, Narchi H, Subramanian R, Yuvaraju P. Development and validation of LC-MS/MS method for quantification of ATP, ADP and AMP in dried blood spot, liver and brain of neonate mice pups. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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268
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Lv X, Niu H. Mesenchymal Stem Cell Transplantation for the Treatment of Cognitive Frailty. J Nutr Health Aging 2021; 25:795-801. [PMID: 34179936 DOI: 10.1007/s12603-021-1632-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As life expectancy increases, frailty and cognitive impairment have become major factors influencing healthy aging in elderly individuals. Frailty is a complicated clinical condition characterized by decreased physiological reserve and multisystem abnormalities. Cognitive frailty is a subtype of frailty that has aroused widespread concern among the scientific community and public health organizations. We herein review the pathogenesis of cognitive frailty, such as chronic inflammatory response, immunological hypofunction, imbalanced oxidative stress, reduced regenerative function, endocrine dysfunction, and energy metabolism disorder. Although existing interventions show some therapeutic effects, they do not meet the current clinical needs. To date, studies using stem cell technology for treating age-related diseases have achieved remarkable success. This suggests the possibility of applying stem cell treatment to cognitive frailty. We analyzed stem cell-based strategies for targeting anti-inflammation, antioxidation, regeneration, and immunoregulation using mesenchymal stem cells, as well as potential therapeutic targets for cognitive frailty. Based on this investigation, we propose a highly effective and low-cost stem cell-based replacement strategy. However, there is a lack of comprehensive research on the prospect of stem cell transplantation for improving cognitive frailty. In this review, we aim to provide the scientific background and a theoretical basis for testing cell therapy in future research.
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Affiliation(s)
- X Lv
- Huiyan Niu, 36 Sanhao street, Shenyang, Liaoning province, China, Tel :+86 18940255686,
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269
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Thallas-Bonke V, Tan SM, Lindblom RS, Snelson M, Granata C, Jha JC, Sourris KC, Laskowski A, Watson A, Tauc M, Rubera I, Zheng G, Shah AM, Harris DCH, Elbatreek MH, Kantharidis P, Cooper ME, Jandeleit-Dahm K, Coughlan MT. Targeted deletion of nicotinamide adenine dinucleotide phosphate oxidase 4 from proximal tubules is dispensable for diabetic kidney disease development. Nephrol Dial Transplant 2020; 36:988-997. [PMID: 33367789 DOI: 10.1093/ndt/gfaa376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The nicotinamide adenine dinucleotide phosphate oxidase isoform 4 (Nox4) mediates reactive oxygen species (ROS) production and renal fibrosis in diabetic kidney disease (DKD) at the level of the podocyte. However, the mitochondrial localization of Nox4 and its role as a mitochondrial bioenergetic sensor has recently been reported. Whether Nox4 drives pathology in DKD within the proximal tubular compartment, which is densely packed with mitochondria, is not yet known. METHODS We generated a proximal tubular-specific Nox4 knockout mouse model by breeding Nox4flox/flox mice with mice expressing Cre recombinase under the control of the sodium-glucose cotransporter-2 promoter. Subsets of Nox4ptKO mice and their Nox4flox/flox littermates were injected with streptozotocin (STZ) to induce diabetes. Mice were followed for 20 weeks and renal injury was assessed. RESULTS Genetic ablation of proximal tubular Nox4 (Nox4ptKO) resulted in no change in renal function and histology. Nox4ptKO mice and Nox4flox/flox littermates injected with STZ exhibited the hallmarks of DKD, including hyperfiltration, albuminuria, renal fibrosis and glomerulosclerosis. Surprisingly, diabetes-induced renal injury was not improved in Nox4ptKO STZ mice compared with Nox4flox/flox STZ mice. Although diabetes conferred ROS overproduction and increased the mitochondrial oxygen consumption rate, proximal tubular deletion of Nox4 did not normalize oxidative stress or mitochondrial bioenergetics. CONCLUSIONS Taken together, these results demonstrate that genetic deletion of Nox4 from the proximal tubules does not influence DKD development, indicating that Nox4 localization within this highly energetic compartment is dispensable for chronic kidney disease pathogenesis in the setting of diabetes.
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Affiliation(s)
| | - Sih Min Tan
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Runa S Lindblom
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Cesare Granata
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
| | - Jay Chandra Jha
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Anna Watson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Michel Tauc
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Isabelle Rubera
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Guoping Zheng
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine and Sciences, London, UK
| | - David C H Harris
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Mahmoud H Elbatreek
- Department of Pharmacology and Personalised Medicine, School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Phillip Kantharidis
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karin Jandeleit-Dahm
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,German Diabetes Centre, Leibniz Centre for Diabetes Research, Heinrich Heine University, Duesseldorf, Germany
| | - Melinda T Coughlan
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
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270
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Lassén E, Daehn IS. Molecular Mechanisms in Early Diabetic Kidney Disease: Glomerular Endothelial Cell Dysfunction. Int J Mol Sci 2020; 21:ijms21249456. [PMID: 33322614 PMCID: PMC7764016 DOI: 10.3390/ijms21249456] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023] Open
Abstract
Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease (ESRD), with prevalence increasing at an alarming rate worldwide and today, there are no known cures. The pathogenesis of DKD is complex, influenced by genetics and the environment. However, the underlying molecular mechanisms that contribute to DKD risk in about one-third of diabetics are still poorly understood. The early stage of DKD is characterized by glomerular hyperfiltration, hypertrophy, podocyte injury and depletion. Recent evidence of glomerular endothelial cell injury at the early stage of DKD has been suggested to be critical in the pathological process and has highlighted the importance of glomerular intercellular crosstalk. A potential mechanism may include reactive oxygen species (ROS), which play a direct role in diabetes and its complications. In this review, we discuss different cellular sources of ROS in diabetes and a new emerging paradigm of endothelial cell dysfunction as a key event in the pathogenesis of DKD.
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271
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Srivastava SP, Kanasaki K, Goodwin JE. Loss of Mitochondrial Control Impacts Renal Health. Front Pharmacol 2020; 11:543973. [PMID: 33362536 PMCID: PMC7756079 DOI: 10.3389/fphar.2020.543973] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 11/19/2020] [Indexed: 12/13/2022] Open
Abstract
Disruption of mitochondrial biosynthesis or dynamics, or loss of control over mitochondrial regulation leads to a significant alteration in fuel preference and metabolic shifts that potentially affect the health of kidney cells. Mitochondria regulate metabolic networks which affect multiple cellular processes. Indeed, mitochondria have established themselves as therapeutic targets in several diseases. The importance of mitochondria in regulating the pathogenesis of several diseases has been recognized, however, there is limited understanding of mitochondrial biology in the kidney. This review provides an overview of mitochondrial dysfunction in kidney diseases. We describe the importance of mitochondria and mitochondrial sirtuins in the regulation of renal metabolic shifts in diverse cells types, and review this loss of control leads to increased cell-to-cell transdifferentiation processes and myofibroblast-metabolic shifts, which affect the pathophysiology of several kidney diseases. In addition, we examine mitochondrial-targeted therapeutic agents that offer potential leads in combating kidney diseases.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, United States
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States
| | - Keizo Kanasaki
- Internal Medicine 1, Shimane University Faculty of Medicine, Izumo, Japan
| | - Julie E. Goodwin
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, United States
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States
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272
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Barrett HL, Donaghue KC, Forbes JM. Going in Early: Hypoxia as a Target for Kidney Disease Prevention in Diabetes? Diabetes 2020; 69:2578-2580. [PMID: 33219102 DOI: 10.2337/dbi20-0037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Helen L Barrett
- Mater Research - The University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
- Queensland Diabetes and Endocrine Centre, Mater Health, Brisbane, Queensland, Australia
| | - Kim C Donaghue
- Children's Hospital at Westmead and Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Josephine M Forbes
- Mater Research - The University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, St Lucia, Queensland, Australia
- Department of Medicine, University of Melbourne, Austin Health, Heidelberg, Victoria, Australia
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273
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Jiang YY, Shui JC, Zhang BX, Chin JW, Yue RS. The Potential Roles of Artemisinin and Its Derivatives in the Treatment of Type 2 Diabetes Mellitus. Front Pharmacol 2020; 11:585487. [PMID: 33381036 PMCID: PMC7768903 DOI: 10.3389/fphar.2020.585487] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic disease that has become a global public health problem. Studies on T2DM prevention and treatment mostly focus on discovering therapeutic drugs. Artemisinin and its derivatives were originally used as antimalarial treatments. In recent years, the roles of artemisinins in T2DM have attracted much attention. Artemisinin treatments not only attenuate insulin resistance and restore islet ß-cell function in T2DM but also have potential therapeutic effects on diabetic complications, including diabetic kidney disease, cognitive impairment, diabetic retinopathy, and diabetic cardiovascular disease. Many in vitro and in vivo experiments have confirmed the therapeutic utility of artemisinin and its derivatives on T2DM, but no article has systematically demonstrated the specific role artemisinin plays in the treatment of T2DM. This review summarizes the potential therapeutic effects and mechanism of artemisinin and its derivatives in T2DM and associated complications, providing a reference for subsequent related research.
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Affiliation(s)
- Ya-Yi Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jia-Cheng Shui
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo-Xun Zhang
- Department of Endocrinology, Guang'anmen Hospital of China, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jia-Wei Chin
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ren-Song Yue
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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274
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Salazar-Torres FJ, Medina-Perez M, Melo Z, Mendoza-Cerpa C, Echavarria R. Urinary expression of long non-coding RNA TUG1 in non-diabetic patients with glomerulonephritides. Biomed Rep 2020; 14:17. [PMID: 33365127 DOI: 10.3892/br.2020.1393] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 09/29/2020] [Indexed: 12/22/2022] Open
Abstract
Metabolic alterations serve a significant role in the pathogenesis of kidney disease. Long non-coding RNA (lncRNA) taurine upregulated gene 1 (TUG1) is a known regulator of podocyte health and mitochondrial biogenesis. Although TUG1 protects against podocyte loss in models of diabetic nephropathy, it is unknown if urinary TUG1 expression is associated with clinical and histopathological findings in non-diabetic patients diagnosed with glomerulonephritides. In the present study, the expression of TUG1, podocyte-specific markers (nephrin and podocin) and mitochondrial biogenesis-associated mRNAs (transcription factor A mitochondrial, cytochrome C oxidase subunit 5A and peroxisome proliferator-activated receptor γ coactivator 1α) were examined in urinary sediment of non-diabetic patients with biopsy-confirmed glomerulonephritides and healthy controls. Urinary expression of TUG1 was significantly lower in patients with glomerulonephritides, particularly those diagnosed with Focal Segmental Glomerulosclerosis (FSGS). Furthermore, TUG1 levels were associated with urinary expression of podocyte-specific markers and mRNAs associated with mitochondrial biogenesis. Loss of TUG1 expression in urinary sediment was strongly associated with FSGS, highlighting the potential of this lncRNA and its mitochondrial biogenesis-associated targets as non-invasive biomarkers of assessing podocytopathy.
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Affiliation(s)
- Fernando Javier Salazar-Torres
- Departamento de Nefrología, UMAE-Hospital de Especialidades, CMNO, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco 44340, México.,Unidad de Medicina Familiar con Unidad Médica de Atención Ambulatoria UMF/UMAA 39, Instituto Mexicano del Seguro Social, Matamoros, Tamaulipas 87344, México
| | - Miguel Medina-Perez
- Departamento de Nefrología, UMAE-Hospital de Especialidades, CMNO, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco 44340, México
| | - Zesergio Melo
- CONACyT-Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco 44340, México
| | - Claudia Mendoza-Cerpa
- Departamento de Patología, UMAE-Hospital de Especialidades, CMNO, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco 44340, México
| | - Raquel Echavarria
- CONACyT-Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco 44340, México
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275
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Kang Q, Yang C. Oxidative stress and diabetic retinopathy: Molecular mechanisms, pathogenetic role and therapeutic implications. Redox Biol 2020; 37:101799. [PMID: 33248932 PMCID: PMC7767789 DOI: 10.1016/j.redox.2020.101799] [Citation(s) in RCA: 392] [Impact Index Per Article: 98.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/29/2020] [Accepted: 11/10/2020] [Indexed: 12/18/2022] Open
Abstract
Oxidative stress, a cytopathic outcome of excessive generation of ROS and the repression of antioxidant defense system for ROS elimination, is involved in the pathogenesis of multiple diseases, including diabetes and its complications. Retinopathy, a microvascular complication of diabetes, is the primary cause of acquired blindness in diabetic patients. Oxidative stress has been verified as one critical contributor to the pathogenesis of diabetic retinopathy. Oxidative stress can both contribute to and result from the metabolic abnormalities induced by hyperglycemia, mainly including the increased flux of the polyol pathway and hexosamine pathway, the hyper-activation of protein kinase C (PKC) isoforms, and the accumulation of advanced glycation end products (AGEs). Moreover, the repression of the antioxidant defense system by hyperglycemia-mediated epigenetic modification also leads to the imbalance between the scavenging and production of ROS. Excessive accumulation of ROS induces mitochondrial damage, cellular apoptosis, inflammation, lipid peroxidation, and structural and functional alterations in retina. Therefore, it is important to understand and elucidate the oxidative stress-related mechanisms underlying the progress of diabetic retinopathy. In addition, the abnormalities correlated with oxidative stress provide multiple potential therapeutic targets to develop safe and effective treatments for diabetic retinopathy. Here, we also summarized the main antioxidant therapeutic strategies to control this disease. Oxidative stress can both contribute to and result from hyperglycemia-induced metabolic abnormalities in retina. Genes important in regulation of ROS are epigenetically modified, increasing ROS accumulation in retina. Oxidative stress is closely associated with the pathological changes in the progress of diabetic retinopathy. Antioxidants ameliorate retinopathy through targeting multiple steps of oxidative stress.
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Affiliation(s)
- Qingzheng Kang
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, 518060, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chunxue Yang
- Department of Pathology, The University of Hong Kong, Hong Kong SAR, 999077, China.
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276
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Cleveland KH, Brosius FC, Schnellmann RG. Regulation of mitochondrial dynamics and energetics in the diabetic renal proximal tubule by the β 2-adrenergic receptor agonist formoterol. Am J Physiol Renal Physiol 2020; 319:F773-F779. [PMID: 32954853 PMCID: PMC7789990 DOI: 10.1152/ajprenal.00427.2020] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Diabetes is a prevalent metabolic disease that contributes to ∼50% of all end-stage renal disease and has limited treatment options. We previously demonstrated that the β2-adrenergic receptor agonist formoterol induced mitochondrial biogenesis and promoted recovery from acute kidney injury. Here, we assessed the effects of formoterol on mitochondrial dysfunction and dynamics in renal proximal tubule cells (RPTCs) treated with high glucose and in a mouse model of type 2 diabetes. RPTCs exposed to 17 mM glucose exhibited increased electron transport chain (ETC) complex I, II, III, and V protein levels and reduced ATP levels and uncoupled oxygen consumption rate compared with RPTCs cultured in the absence of glucose or osmotic controls after 96 h. ETC proteins, ATP, and oxygen consumption rate were restored in RPTCs treated with formoterol. RPTCs exposed to high glucose had increased phospho-dynamin-related protein 1 (Drp1), a mitochondrial fission protein, and decreased mitofusin 1 (Mfn1), a mitochondrial fusion protein. Formoterol treatment restored phospho-Drp1 and Mfn1 to control levels. Db/db and nondiabetic (db/m) mice (10 wk old) were treated with formoterol or vehicle for 3 wk and euthanized. Db/db mice showed increased renal cortical ETC protein levels in complexes I, III, and V and decreased ATP; these changes were prevented by formoterol. Phospho-Drp1 was increased and Mfn1 was decreased in db/db mice, and formoterol restored both to control levels. Together, these findings demonstrate that hyperglycemic conditions in vivo and exposure of RPTCs to high glucose similarly alter mitochondrial bioenergetic and dynamics profiles and that treatment with formoterol can reverse these effects. Formoterol may be a promising strategy for treating early stages of diabetic kidney disease.
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Affiliation(s)
- Kristan H. Cleveland
- 1Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona
| | - Frank C. Brosius
- 2Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona,3Departments of Internal Medicine and Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Rick G. Schnellmann
- 1Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona,4Southern Arizona Veterans Affairs Health Care System, Tucson, Arizona,5Southwest Environmental Health Science Center, University of Arizona, Tucson, Arizona
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277
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Chaiyarit S, Thongboonkerd V. Mitochondrial Dysfunction and Kidney Stone Disease. Front Physiol 2020; 11:566506. [PMID: 33192563 PMCID: PMC7606861 DOI: 10.3389/fphys.2020.566506] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022] Open
Abstract
Mitochondrion is a pivotal intracellular organelle that plays crucial roles in regulation of energy production, oxidative stress, calcium homeostasis, and apoptosis. Kidney stone disease (nephrolithiasis/urolithiasis), particularly calcium oxalate (CaOx; the most common type), has been shown to be associated with oxidative stress and tissue inflammation/injury. Recent evidence has demonstrated the involvement of mitochondrial dysfunction in CaOx crystal retention and aggregation as well as Randall’s plaque formation, all of which are the essential mechanisms for kidney stone formation. This review highlights the important roles of mitochondria in renal cell functions and provides the data obtained from previous investigations of mitochondria related to kidney stone disease. In addition, mechanisms for the involvement of mitochondrial dysfunction in the pathophysiology of kidney stone disease are summarized. Finally, future perspectives on the novel approach to prevent kidney stone formation by mitochondrial preservation are discussed.
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Affiliation(s)
- Sakdithep Chaiyarit
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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278
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Novel approach to quantify mitochondrial content and intrinsic bioenergetic efficiency across organs. Sci Rep 2020; 10:17599. [PMID: 33077793 PMCID: PMC7572412 DOI: 10.1038/s41598-020-74718-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/05/2020] [Indexed: 01/09/2023] Open
Abstract
Human disease pathophysiology commonly involves metabolic disruption at both the cellular and subcellular levels. Isolated mitochondria are a powerful model for separating global cellular changes from intrinsic mitochondrial alterations. However, common laboratory practices for isolating mitochondria (e.g., differential centrifugation) routinely results in organelle preparations with variable mitochondrial purity. To overcome this issue, we developed a mass spectrometry-based method that quantitatively evaluates sample-specific percent mitochondrial enrichment. Sample-specific mitochondrial enrichment was then used to correct various biochemical readouts of mitochondrial function to a ‘fixed’ amount of mitochondrial protein, thus allowing for intrinsic mitochondrial bioenergetics, relative to the underlying proteome, to be assessed across multiple mouse tissues (e.g., heart, brown adipose, kidney, liver). Our results support the use of mitochondrial-targeted nLC-MS/MS as a method to quantitate mitochondrial enrichment on a per-sample basis, allowing for unbiased comparison of functional parameters between populations of mitochondria isolated from metabolically distinct tissues. This method can easily be applied across multiple experimental settings in which intrinsic shifts in the mitochondrial network are suspected of driving a given physiological or pathophysiological outcome.
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279
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Bhatia D, Capili A, Choi ME. Mitochondrial dysfunction in kidney injury, inflammation, and disease: Potential therapeutic approaches. Kidney Res Clin Pract 2020; 39:244-258. [PMID: 32868492 PMCID: PMC7530368 DOI: 10.23876/j.krcp.20.082] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/21/2020] [Accepted: 06/23/2020] [Indexed: 12/19/2022] Open
Abstract
Mitochondria are energy-producing organelles that not only satisfy the high metabolic demands of the kidney but sense and respond to kidney injury-induced oxidative stress and inflammation. Kidneys are rich in mitochondria. Mitochondrial dysfunction plays a critical role in the progression of acute kidney injury and chronic kidney disease. Mitochondrial responses to specific stimuli are highly regulated and synergistically modulated by tightly interconnected processes, including mitochondrial dynamics (fission, fusion) and mitophagy. The counterbalance between these processes is essential in maintaining a healthy network of mitochondria. Recent literature suggests that alterations in mitochondrial dynamics are implicated in kidney injury and the progression of kidney diseases. A decrease in mitochondrial fusion promotes fission-induced mitochondrial fragmentation, but a reduction in mitochondrial fission produces excessive mitochondrial elongation. The removal of dysfunctional mitochondria by mitophagy is crucial for their quality control. Defective mitochondrial function disrupts cellular redox potential and can cause cell death. Mitochondrial DNA derived from damaged cells also act as damage-associated molecular patterns to recruit immune cells and the inflammatory response can further exaggerate kidney injury. This review provides a comprehensive overview of the role of mitochondrial dysfunction in acute kidney injury and chronic kidney disease. We discuss the processes that control mitochondrial stress responses to kidney injury and review recent advances in understanding the role of mitochondrial dysfunction in inflammation and tissue damage through the use of different experimental models of kidney disease. We also describe potential mitochondria-targeted therapeutic approaches.
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Affiliation(s)
- Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, New York, NY, USA
| | - Allyson Capili
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, New York, NY, USA
| | - Mary E. Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, New York, NY, USA
- Department of Medicine, NewYork-Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA
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280
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Uyy E, Suica VI, Boteanu RM, Safciuc F, Cerveanu-Hogas A, Ivan L, Stavaru C, Simionescu M, Antohe F. Diabetic nephropathy associates with deregulation of enzymes involved in kidney sulphur metabolism. J Cell Mol Med 2020; 24:12131-12140. [PMID: 32935914 PMCID: PMC7579703 DOI: 10.1111/jcmm.15855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
Nephropathy is a major chronic complication of diabetes. A crucial role in renal pathophysiology is played by hydrogen sulphide (H2S) that is produced excessively by the kidney; however, the data regarding H2S bioavailability are inconsistent. We hypothesize that early type 1 diabetes (T1D) increases H2S production by a mechanism involving hyperglycaemia‐induced alterations in sulphur metabolism. Plasma and kidney tissue collected from T1D double transgenic mice were subjected to mass spectrometry‐based proteomic analysis, and the results were validated by immunological and gene expression assays.T1D mice exhibited a high concentration of H2S in the plasma and kidney tissue and histological, showed signs of subtle kidney fibrosis, characteristic for early renal disease. The shotgun proteomic analyses disclosed that the level of enzymes implicated in sulphate activation modulators, H2S‐oxidation and H2S‐production were significantly affected (ie 6 up‐regulated and 4 down‐regulated). Gene expression results corroborated well with the proteomic data. Dysregulation of H2S enzymes underly the changes occurring in H2S production, which in turn could play a key role in the initiation of renal disease. The new findings lead to a novel target in the therapy of diabetic nephropathy. Mass spectrometry data are available via ProteomeXchange with identifier PXD018053.
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Affiliation(s)
- Elena Uyy
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Viorel Iulian Suica
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Raluca Maria Boteanu
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Florentina Safciuc
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Aurel Cerveanu-Hogas
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Luminita Ivan
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Crina Stavaru
- "Cantacuzino" National Institute of Research and Development for Microbiology and Immunology, Bucharest, Romania
| | - Maya Simionescu
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
| | - Felicia Antohe
- Institute of Cellular Biology and Pathology "Nicolae Simionescu", Bucharest, Romania
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281
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Mechanism of progression of diabetic kidney disease mediated by podocyte mitochondrial injury. Mol Biol Rep 2020; 47:8023-8035. [PMID: 32918716 DOI: 10.1007/s11033-020-05749-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 08/28/2020] [Indexed: 12/21/2022]
Abstract
Diabetic kidney disease (DKD) is an important diabetic microvascular complication, which has become the main cause of end-stage renal disease (ESRD) all over the world. It is of great significance to find effective therapeutic targets and improve the prognosis of the disease. Traditionally, it is believed that the activation of the renin-angiotensin-aldosterone system (RAAS) is the main reason for the progression of DKD, but with the progress of research, it is known that the production of proteinuria in patients with DKD is also related to podocyte injury and loss. Many studies have shown that mitochondrial dysfunction in podocytes plays an important role in the occurrence and development of DKD, and oxidative stress is also the main pathway and common hub of diabetes to the occurrence and development of microvascular and macrovascular complications. Thus, the occurrence and progression of DKD is correlated with not only the activation of the RAAS, but also the damage of mitochondria, oxidative stress, and inflammatory mediators. Besides, diabetes-related metabolic disorders can also cause abnormalities in mitochondrial dynamics, autophagy and cellular signal transduction, which are intertwined in a complex way. Therefore, in this review, we mainly explore the mechanism and the latest research progress of podocyte mitochondria in DKD and summarize the main signal pathways involved in them. Thus, it provides feasible clinical application and future research suggestions for the prevention and treatment of DKD, which has important practical significance for the later treatment of patients with DKD.
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282
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Aparicio-Trejo OE, Rojas-Morales P, Avila-Rojas SH, León-Contreras JC, Hernández-Pando R, Jiménez-Uribe AP, Prieto-Carrasco R, Sánchez-Lozada LG, Pedraza-Chaverri J, Tapia E. Temporal Alterations in Mitochondrial β-Oxidation and Oxidative Stress Aggravate Chronic Kidney Disease Development in 5/6 Nephrectomy Induced Renal Damage. Int J Mol Sci 2020; 21:ijms21186512. [PMID: 32899919 PMCID: PMC7555424 DOI: 10.3390/ijms21186512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 12/17/2022] Open
Abstract
Five-sixths nephrectomy (5/6Nx) model is widely used for studying the mechanisms involved in chronic kidney disease (CKD) progression, a kidney pathology that has increased dramatically in recent years. Mitochondrial impairment is a key mechanism that aggravates CKD progression; however, the information on mitochondrial bioenergetics and redox alterations along a time course in a 5/6Nx model is still limited and in some cases contradictory. Therefore, we performed for the first time a time-course study of mitochondrial alterations by high-resolution respirometry in the 5/6Nx model. Our results show a decrease in mitochondrial β-oxidation at early times, as well as a permanent impairment in adenosine triphosphate (ATP) production in CI-linked respiration, a permanent oxidative state in mitochondria and decoupling of these organelles. These pathological alterations are linked to the early decrease in complex I and ATP synthase activities and to the further decrease in complex III activity. Therefore, our results may suggest that mitochondrial bioenergetics impairment is an early event in renal damage, whose persistence in time aggravates CKD development in the 5/6Nx model.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Pedro Rojas-Morales
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Sabino Hazael Avila-Rojas
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Alexis Paulina Jiménez-Uribe
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Rodrigo Prieto-Carrasco
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Laura Gabriela Sánchez-Lozada
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Edilia Tapia
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Correspondence:
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283
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Gao P, Yang W, Sun L. Mitochondria-Associated Endoplasmic Reticulum Membranes (MAMs) and Their Prospective Roles in Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3120539. [PMID: 32952849 PMCID: PMC7487091 DOI: 10.1155/2020/3120539] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
Mitochondria-associated endoplasmic reticulum (ER) membranes (MAMs) serve as essential hubs for interorganelle communication in eukaryotic cells and play multifunctional roles in various biological pathways. A defect in ER-mitochondria signaling or MAMs dysfunction has pleiotropic effects on a variety of intracellular events, which results in disturbances of the mitochondrial quality control system, Ca2+ dyshomeostasis, apoptosis, ER stress, and inflammasome activation, which all contribute to the onset and progression of kidney disease. Here, we review the structure and molecular compositions of MAMs as well as the experimental methods used to study these interorganellar contact sites. We will specifically summarize the downstream signaling pathways regulated by MAMs, mainly focusing on mitochondrial quality control, oxidative stress, ER-mitochondria Ca2+ crosstalk, apoptosis, inflammasome activation, and ER stress. Finally, we will discuss how alterations in MAMs integrity contribute to the pathogenesis of kidney disease and offer directions for future research.
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Affiliation(s)
- Peng Gao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
- Key Laboratory of Kidney Disease & Blood Purification, in Hunan Province, Changsha, Hunan, 410011, China
- Institute of Nephrology, Central South University, Changsha, Hunan, 410011, China
| | - Wenxia Yang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
- Key Laboratory of Kidney Disease & Blood Purification, in Hunan Province, Changsha, Hunan, 410011, China
- Institute of Nephrology, Central South University, Changsha, Hunan, 410011, China
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
- Key Laboratory of Kidney Disease & Blood Purification, in Hunan Province, Changsha, Hunan, 410011, China
- Institute of Nephrology, Central South University, Changsha, Hunan, 410011, China
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284
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Martínez-Klimova E, Aparicio-Trejo OE, Gómez-Sierra T, Jiménez-Uribe AP, Bellido B, Pedraza-Chaverri J. Mitochondrial dysfunction and endoplasmic reticulum stress in the promotion of fibrosis in obstructive nephropathy induced by unilateral ureteral obstruction. Biofactors 2020; 46:716-733. [PMID: 32905648 DOI: 10.1002/biof.1673] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/06/2020] [Indexed: 12/18/2022]
Abstract
Obstructive nephropathy favors the progression to chronic kidney disease (CKD), a severe health problem worldwide. The unilateral ureteral obstruction (UUO) model is used to study the development of fibrosis. Impairment of renal mitochondria plays a crucial role in several types of CKD and has been strongly related to fibrosis onset. Nevertheless, in the UUO model, the impairment of mitochondria, their relationship with endoplasmic reticulum (ER) stress induction and the participation of both to induce the fibrotic process remain unclear. In this review, we summarize the current information about mitochondrial bioenergetics, redox dynamics, mitochondrial mass, and biogenesis alterations, as well as the relationship of these mitochondrial alterations with ER stress and their participation in fibrotic processes in UUO models. Early after obstruction, there is metabolic reprogramming related to mitochondrial fatty acid β-oxidation impairment, triggering lipid deposition, oxidative stress, (calcium) Ca2+ dysregulation, and a reduction in mitochondrial mass and biogenesis. Mitochondria and the ER establish a pathological feedback loop that promotes the impairment of both organelles by ER stress pathways and Ca2+ levels dysregulation. Preserving mitochondrial and ER function can prevent or at least delay the fibrotic process and loss of renal function. However, deeper understanding is still necessary for future clinically-useful therapies.
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Affiliation(s)
- Elena Martínez-Klimova
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Mexico, Mexico
| | | | - Tania Gómez-Sierra
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Mexico, Mexico
| | | | - Belen Bellido
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - José Pedraza-Chaverri
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Mexico, Mexico
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285
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Peña-Montes DJ, Huerta-Cervantes M, Ríos-Silva M, Trujillo X, Cortés-Rojo C, Huerta M, Saavedra-Molina A. Effects of dietary iron restriction on kidney mitochondria function and oxidative stress in streptozotocin-diabetic rats. Mitochondrion 2020; 54:41-48. [DOI: 10.1016/j.mito.2020.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/10/2020] [Accepted: 07/08/2020] [Indexed: 12/22/2022]
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286
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Miceli C, Roccio F, Penalva-Mousset L, Burtin M, Leroy C, Nemazanyy I, Kuperwasser N, Pontoglio M, Friedlander G, Morel E, Terzi F, Codogno P, Dupont N. The primary cilium and lipophagy translate mechanical forces to direct metabolic adaptation of kidney epithelial cells. Nat Cell Biol 2020; 22:1091-1102. [PMID: 32868900 DOI: 10.1038/s41556-020-0566-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 07/28/2020] [Indexed: 12/19/2022]
Abstract
Organs and cells must adapt to shear stress induced by biological fluids, but how fluid flow contributes to the execution of specific cell programs is poorly understood. Here we show that shear stress favours mitochondrial biogenesis and metabolic reprogramming to ensure energy production and cellular adaptation in kidney epithelial cells. Shear stress stimulates lipophagy, contributing to the production of fatty acids that provide mitochondrial substrates to generate ATP through β-oxidation. This flow-induced process is dependent on the primary cilia located on the apical side of epithelial cells. The interplay between fluid flow and lipid metabolism was confirmed in vivo using a unilateral ureteral obstruction mouse model. Finally, primary cilium-dependent lipophagy and mitochondrial biogenesis are required to support energy-consuming cellular processes such as glucose reabsorption, gluconeogenesis and cytoskeletal remodelling. Our findings demonstrate how primary cilia and autophagy are involved in the translation of mechanical forces into metabolic adaptation.
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Affiliation(s)
- Caterina Miceli
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France.,Center for Autophagy Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Federica Roccio
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Lucille Penalva-Mousset
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Martine Burtin
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Christine Leroy
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Ivan Nemazanyy
- Platform for Metabolic Analyses, Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS 3633, Paris, France
| | - Nicolas Kuperwasser
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Marco Pontoglio
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Gérard Friedlander
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Etienne Morel
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Fabiola Terzi
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France
| | - Patrice Codogno
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France.
| | - Nicolas Dupont
- Institut Necker Enfants-Malades (INEM), INSERM U1151/CNRS UMR 8253, Université de Paris, Paris, France.
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287
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Zhang X, Xu H, Ning J, Ji H, Yan J, Zheng Y, Xu Q, Li C, Zhao L, Zheng H, Gao H. Sex-Specific Metabolic Changes in Peripheral Organs of Diabetic Mice. J Proteome Res 2020; 19:3011-3021. [PMID: 32450697 DOI: 10.1021/acs.jproteome.0c00049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Diabetes mellitus (DM) can cause systemic metabolic disorders, but the impact of gender on DM-related metabolic changes is rarely reported. Herein, we analyzed metabolic alterations in the heart, liver, and kidney of male and female mice from normal to diabetes via a 1H NMR-based metabolomics method and aimed to investigate sex-specific metabolic mechanisms underlying the onset and development of diabetes and its complications. Our results demonstrate that male mice had more significant metabolic disorders from normal to diabetes than female mice. Moreover, the kidney was found as the major organ of metabolic disorders during the development of diabetes, followed by the liver and heart. These altered metabolites were mainly implicated in energy metabolism as well as amino acid, choline, and nucleotide metabolism. Therefore, this study suggests that the kidney is the primary organ affected by diabetes in a sex-specific manner, which provides a metabolic view on the pathogenesis of diabetic kidney diseases between genders.
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Affiliation(s)
- Xi Zhang
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hangying Xu
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jie Ning
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hui Ji
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Junjie Yan
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yafei Zheng
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Qingqing Xu
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Chen Li
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Liangcai Zhao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hong Zheng
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hongchang Gao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
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288
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Zuo Z, Jing K, Wu H, Wang S, Ye L, Li Z, Yang C, Pan Q, Liu WJ, Liu HF. Mechanisms and Functions of Mitophagy and Potential Roles in Renal Disease. Front Physiol 2020; 11:935. [PMID: 32903665 PMCID: PMC7438724 DOI: 10.3389/fphys.2020.00935] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/13/2020] [Indexed: 12/19/2022] Open
Abstract
Mitophagy is an evolutionarily conserved process to selectively remove damaged or unnecessary mitochondria via the autophagic machinery. In this review, we focus on recent advances in the molecular mechanisms of mitophagy and how mitophagy contributes to cellular homeostasis in physiological and pathological contexts. We also briefly review and discuss the crosstalk between mitophagy and renal disease, highlighting its modulation as a potentially effective therapeutic strategy to treat kidney diseases such as acute kidney injury (AKI), diabetic kidney disease (DKD), and lupus nephritis (LN).
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Affiliation(s)
- Zhenying Zuo
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Kaipeng Jing
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hongluan Wu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shujun Wang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Lin Ye
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Zhihang Li
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chen Yang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qingjun Pan
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wei Jing Liu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Key Laboratory of Chinese Internal Medicine, Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China.,Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Hua-Feng Liu
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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289
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Mulder S, Perco P, Oxlund C, Mehdi UF, Hankemeier T, Jacobsen IA, Toto R, Heerspink HJL, Pena MJ. Baseline urinary metabolites predict albuminuria response to spironolactone in type 2 diabetes. Transl Res 2020; 222:17-27. [PMID: 32438071 DOI: 10.1016/j.trsl.2020.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 04/09/2020] [Accepted: 04/11/2020] [Indexed: 12/14/2022]
Abstract
The mineralocorticoid receptor antagonist spironolactone significantly reduces albuminuria in subjects with diabetic kidney disease, albeit with a large variability between individuals. Identifying novel biomarkers that predict response to therapy may help to tailor spironolactone therapy. We aimed to identify a set of metabolites for prediction of albuminuria response to spironolactone in subjects with type 2 diabetes. Systems biology molecular process analysis was performed a priori to identify metabolites linked to molecular disease processes and drug mechanism of action. Individual subject data and urine samples were used from 2 randomized placebo controlled double blind clinical trials (NCT01062763, NCT00381134). A urinary metabolite score was developed to predict albuminuria response to spironolactone therapy using penalized ridge regression with leave-one-out cross validation. Bioinformatic analysis identified a set of 18 metabolites linked to a diabetic kidney disease molecular model and potentially affected by spironolactone mechanism of action. Spironolactone reduced UACR relative to placebo by median -42% (25th to 75% percentile -65 to 6) and -29% (25th to 75% percentile -37 to -1) in the test and replication cohorts, respectively. In the test cohort, UACR reduction was higher in the lowest tertile of the baseline urinary metabolite score compared with middle and upper tertiles -58% (25th to 75% percentile -78 to 33), -28% (25th to 75% percentile -46 to 8), -40% (25th to 75% percentile -52% to 31), respectively, P = 0.001 for trend). In the replication cohort, UACR reduction was -54% (25th to 75% percentile -65 to -50), -41 (25th to 75% percentile -46% to 30), and -17% (25th to 75% percentile -36 to 5), respectively, P = 0.010 for trend). We identified a set of 18 urinary metabolites through systems biology to predict albuminuria response to spironolactone in type 2 diabetes. These data suggest that urinary metabolites may be used as a tool to tailor optimal therapy and move in the direction of personalized medicine.
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Affiliation(s)
- Skander Mulder
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Paul Perco
- Medical University of Innsbruck, Innsbruck, Austria
| | | | - Uzma F Mehdi
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | | | - Robert Toto
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Hiddo J L Heerspink
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Michelle J Pena
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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290
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Mise K, Galvan DL, Danesh FR. Shaping Up Mitochondria in Diabetic Nephropathy. ACTA ACUST UNITED AC 2020; 1:982-992. [PMID: 34189465 DOI: 10.34067/kid.0002352020] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mitochondrial medicine has experienced significant progress in recent years and is expected to grow significantly in the near future, yielding many opportunities to translate novel bench discoveries into clinical medicine. Multiple lines of evidence have linked mitochondrial dysfunction to a variety of metabolic diseases, including diabetic nephropathy (DN). Mitochondrial dysfunction presumably precedes the emergence of key histologic and biochemical features of DN, which provides the rationale to explore mitochondrial fitness as a novel therapeutic target in patients with DN. Ultimately, the success of mitochondrial medicine is dependent on a better understanding of the underlying biology of mitochondrial fitness and function. To this end, recent advances in mitochondrial biology have led to new understandings of the potential effect of mitochondrial dysfunction in a myriad of human pathologies. We have proposed that molecular mechanisms that modulate mitochondrial dynamics contribute to the alterations of mitochondrial fitness and progression of DN. In this comprehensive review, we highlight the possible effects of mitochondrial dysfunction in DN, with the hope that targeting specific mitochondrial signaling pathways may lead to the development of new drugs that mitigate DN progression. We will outline potential tools to improve mitochondrial fitness in DN as a novel therapeutic strategy. These emerging views suggest that the modulation of mitochondrial fitness could serve as a key target in ameliorating progression of kidney disease in patients with diabetes.
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Affiliation(s)
- Koki Mise
- Section of Nephrology, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Daniel L Galvan
- Section of Nephrology, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Farhad R Danesh
- Section of Nephrology, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
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291
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Simard JC, Thibodeau JF, Leduc M, Tremblay M, Laverdure A, Sarra-Bournet F, Gagnon W, Ouboudinar J, Gervais L, Felton A, Letourneau S, Geerts L, Cloutier MP, Hince K, Corpuz R, Blais A, Quintela VM, Duceppe JS, Abbott SD, Blais A, Zacharie B, Laurin P, Laplante SR, Kennedy CRJ, Hébert RL, Leblond FA, Grouix B, Gagnon L. Fatty acid mimetic PBI-4547 restores metabolic homeostasis via GPR84 in mice with non-alcoholic fatty liver disease. Sci Rep 2020; 10:12778. [PMID: 32728158 PMCID: PMC7391726 DOI: 10.1038/s41598-020-69675-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 07/14/2020] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic Fatty Liver Disease (NAFLD) is the most common form of liver disease and is associated with metabolic dysregulation. Although G protein-coupled receptor 84 (GPR84) has been associated with inflammation, its role in metabolic regulation remains elusive. The aim of our study was to evaluate the potential of PBI-4547 for the treatment of NAFLD and to validate the role of its main target receptor, GPR84. We report that PBI-4547 is a fatty acid mimetic, acting concomitantly as a GPR84 antagonist and GPR40/GPR120 agonist. In a mouse model of diet-induced obesity, PBI-4547 treatment improved metabolic dysregulation, reduced hepatic steatosis, ballooning and NAFLD score. PBI-4547 stimulated fatty acid oxidation and induced gene expression of mitochondrial uncoupling proteins in the liver. Liver metabolomics revealed that PBI-4547 improved metabolic dysregulation induced by a high-fat diet regimen. In Gpr84−/− mice, PBI-4547 treatment failed to improve various key NAFLD-associated parameters, as was observed in wildtype littermates. Taken together, these results highlight a detrimental role for the GPR84 receptor in the context of meta-inflammation and suggest that GPR84 antagonism via PBI-4547 may reflect a novel treatment approach for NAFLD and its related complications.
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Affiliation(s)
- Jean-Christophe Simard
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Jean-François Thibodeau
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada. .,Department of Cellular and Molecular Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada.
| | - Martin Leduc
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Mikael Tremblay
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Alexandre Laverdure
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - François Sarra-Bournet
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - William Gagnon
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Jugurtha Ouboudinar
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Liette Gervais
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Alexandra Felton
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Sylvie Letourneau
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Lilianne Geerts
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Marie-Pier Cloutier
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Kathy Hince
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Ramon Corpuz
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Alexandra Blais
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Vanessa Marques Quintela
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Jean-Simon Duceppe
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Shaun D Abbott
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Amélie Blais
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Boulos Zacharie
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Pierre Laurin
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Steven R Laplante
- Institut National de La Recherche Scientifique, Institut Armand-Frappier, 531 Boul. Des Prairies, Laval, QC, H7V 5B7, Canada
| | - Christopher R J Kennedy
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Richard L Hébert
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - François A Leblond
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Brigitte Grouix
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
| | - Lyne Gagnon
- Liminal R&D Biosciences Inc., 500 Boulevard Cartier Ouest (Suite 150), Laval, QC, H7V 5B7, Canada
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292
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Ma T, Liu T, Xie P, Jiang S, Yi W, Dai P, Guo X. UPLC-MS-based urine nontargeted metabolic profiling identifies dysregulation of pantothenate and CoA biosynthesis pathway in diabetic kidney disease. Life Sci 2020; 258:118160. [PMID: 32730837 DOI: 10.1016/j.lfs.2020.118160] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/16/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022]
Abstract
AIMS Diabetic kidney disease (DKD) is a major prevalent chronic microvascular complication of type 2 diabetes (T2D). However, the present diagnostic indicators have limitations in the early diagnosis of DKD. This study concentrated on the sensitive and specific biomarkers in early diagnosis of DKD by metabolomics. MATERIALS AND METHODS In this cross-sectional study, we performed a UPLC-MS based nontargeted metabolomics assay to profile the urinary metabolites in patients with DKD. Principal Component Analysis (PCA) and orthogonal partial least square discriminant analysis (OPLS-DA) were used for screening out the metabolomic variables. KEY FINDINGS A total of 147 urinary metabolites were identified and 5 metabolic pathways were correlated with DKD pathophysiology. Pantothenate and coenzyme A biosynthesis pathway alteration was found the most prominent in DKD subjects. 4 metabolites, including dihydrouracil, ureidopropionic acid, pantothenic acid (PA), and adenosine 3',5'-diphosphate involved in pantothenate and CoA biosynthesis were significantly down-regulated. SIGNIFICANCE Our finding indicates that PA would be served as a novel predictive biomarker associated with DKD development and progression. Furthermore, our results provide a promising prospect that PA and CoA biosynthesis pathway can be potential therapeutic targets for DKD treatment.
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Affiliation(s)
- Tao Ma
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Tonghua Liu
- Key Laboratory of Health Cultivation of the Ministry of Education, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Peifeng Xie
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Sheng Jiang
- The First Teaching Hospital of Xinjiang Medical University, Urumuqi 830013, China
| | - Wenming Yi
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Pei Dai
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Xiangyu Guo
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China.
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293
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DsbA-L deficiency exacerbates mitochondrial dysfunction of tubular cells in diabetic kidney disease. Clin Sci (Lond) 2020; 134:677-694. [PMID: 32167139 DOI: 10.1042/cs20200005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/08/2020] [Accepted: 03/12/2020] [Indexed: 12/11/2022]
Abstract
Excessive mitochondrial fission has been identified as the central pathogenesis of diabetic kidney disease (DKD), but the precise mechanisms remain unclear. Disulfide-bond A oxidoreductase-like protein (DsbA-L) is highly expressed in mitochondria in tubular cells of the kidney, but its pathophysiological role in DKD is unknown. Our bioinformatics analysis showed that tubular DsbA-L mRNA levels were positively associated with eGFR but negatively associated with Scr and 24h-proteinuria in CKD patients. Furthermore, the genes that were coexpressed with DsbA-L were mainly enriched in mitochondria and were involved in oxidative phosphorylation. In vivo, knockout of DsbA-L exacerbated diabetic mice tubular cell mitochondrial fragmentation, oxidative stress and renal damage. In vitro, we found that DsbA-L was localized in the mitochondria of HK-2 cells. High glucose (HG, 30 mM) treatment decreased DsbA-L expression followed by increased mitochondrial ROS (mtROS) generation and mitochondrial fragmentation. In addition, DsbA-L knockdown exacerbated these abnormalities, but this effect was reversed by overexpression of DsbA-L. Mechanistically, under HG conditions, knockdown DsbA-L expression accentuated JNK phosphorylation in HK-2 cells. Furthermore, administration of a JNK inhibitor (SP600125) or the mtROS scavenger MitoQ significantly attenuated JNK activation and subsequent mitochondrial fragmentation in DsbA-L-knockdown HK-2 cells. Additionally, the down-regulation of DsbA-L also amplified the gene and protein expression of mitochondrial fission factor (MFF) via the JNK pathway, enhancing its ability to recruit DRP1 to mitochondria. Taken together, these results link DsbA-L to alterations in mitochondrial dynamics during tubular injury in the pathogenesis of DKD and unveil a novel mechanism by which DsbA-L modifies mtROS/JNK/MFF-related mitochondrial fission.
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294
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Shrikanth CB, Nandini CD. AMPK in microvascular complications of diabetes and the beneficial effects of AMPK activators from plants. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 73:152808. [PMID: 30935723 DOI: 10.1016/j.phymed.2018.12.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 12/19/2018] [Accepted: 12/23/2018] [Indexed: 05/15/2023]
Abstract
BACKGROUND Diabetes mellitus is a multifactorial disorder with the risk of micro- and macro-vascular complications. High glucose-induced derangements in metabolic pathways are primarily associated with the initiation and progression of secondary complications namely, diabetic nephropathy, neuropathy, and retinopathy. Adenosine monophosphate-activated protein kinase (AMPK) has emerged as an attractive therapeutic target to treat various metabolic disorders including diabetes mellitus. It is a master metabolic regulator that helps in maintaining cellular energy homeostasis by promoting ATP-generating catabolic pathways and inhibiting ATP-consuming anabolic pathways. Numerous pharmacological and plant-derived bioactive compounds that increase AMP-activated protein kinase activation has shown beneficial effects by mitigating secondary complications namely retinopathy, nephropathy, and neuropathy. PURPOSE The purpose of this review is to highlight current knowledge on the role of AMPK and its activators from plant origin in diabetic microvascular complications. METHODS Search engines such as Google Scholar, PubMed, Science Direct and Web of Science are used to extract papers using relevant key words. Papers mainly focusing on the role of AMPK and AMPK activators from plant origin in diabetic nephropathy, retinopathy, and neuropathy was chosen to be highlighted. RESULTS According to results, decrease in AMPK activation during diabetes play a causative role in the pathogenesis of diabetic microvascular complications. Some of the plant-derived bioactive compounds were beneficial in restoring AMPK activity and ameliorating diabetic microvascular complications. CONCLUSION AMPK activators from plant origin are beneficial in mitigating diabetic microvascular complications. These pieces of evidence will be helpful in the development of AMPK-centric therapies to mitigate diabetic microvascular complications.
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Affiliation(s)
- C B Shrikanth
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, Karnataka 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI campus, Mysuru, Karnataka 570 020, India
| | - C D Nandini
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysuru, Karnataka 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI campus, Mysuru, Karnataka 570 020, India.
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295
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Zhu H, Wan H, Wu L, Li Q, Liu S, Duan S, Huang Z, Zhang C, Zhang B, Xing C, Yuan Y. Mitochondrial pyruvate carrier: a potential target for diabetic nephropathy. BMC Nephrol 2020; 21:274. [PMID: 32664896 PMCID: PMC7362444 DOI: 10.1186/s12882-020-01931-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
Background Mitochondrial dysfunction contributes to the pathogenesis of diabetic nephropathy (DN). Mitochondrial pyruvate carrier 1 (MPC1) and mitochondrial pyruvate carrier 2 (MPC2) play a bottleneck role in the transport of pyruvate into mitochondrial across the mitochondrial inner membrane. A previous study showed that increasing mitochondrial pyruvate carrier content might ameliorate diabetic kidney disease in db/db mice. However, the expression status of MPC1 and MPC2 in patients with DN is unclear. Methods Patients with primary glomerulonephropathy (PGN, n = 30), PGN with diabetes mellitus (PGN-DM, n = 30) and diabetic nephropathy (DN, n = 30) were included. MPC1 and MPC2 protein levels were examined by immunohistochemistry. The expression of MPC in different groups was evaluated by the Kruskal-Wallis test. Spearman’s rank correlation was performed for correlation analysis between MPC levels and clinical factors. Results Both MPC1 and MPC2 were localized in renal tubules. Levels of MPC1 and MPC2 were lower in DN patients than in PGN patients and in PGN patients with DM, whereas there were no differences in MPC1 and MPC2 levels among DN stage II to stage IV. Moreover, both MPC1 and MPC2 levels were significantly correlated with serum creatinine, BUN and eGFR in patients with DN, whereas no analogous trend was observed in nondiabetic kidney disease. Conclusions Our study indicated that MPC localized in renal tubules, which were significantly decreased in DN. MPC was associated with clinical features, especially those representing renal functions.
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Affiliation(s)
- Huanhuan Zhu
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Huiting Wan
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Lin Wu
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Qing Li
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Simeng Liu
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Suyan Duan
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Zhimin Huang
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Chengning Zhang
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Bo Zhang
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China
| | - Changying Xing
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China.
| | - Yanggang Yuan
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, P. R. of China.
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296
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Console L, Scalise M, Giangregorio N, Tonazzi A, Barile M, Indiveri C. The Link Between the Mitochondrial Fatty Acid Oxidation Derangement and Kidney Injury. Front Physiol 2020; 11:794. [PMID: 32733282 PMCID: PMC7363843 DOI: 10.3389/fphys.2020.00794] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/15/2020] [Indexed: 12/20/2022] Open
Abstract
Renal proximal tubular cells are high energy-demanding cells mainly relying on fatty acid oxidation. In stress conditions, such as transient hypoxia, fatty acid oxidation (FAO) decreases and carbohydrate catabolism fails to compensate for the energy demand. In this scenario, the surviving tubular cells exhibit the peculiar phenotype associated with fibrosis that is the histological manifestation of a process culminating in chronic and end-stage kidney disease. Genome-wide transcriptome analysis revealed that, together with inflammation, FAO is the top dysregulated pathway in kidney diseases with a decreased expression of key FAO enzymes and regulators. Another evidence that links the derangement of FAO to fibrosis is the progressive decrease of the expression of peroxisome proliferator-activated receptor α (PPARα) in aged people, that triggers the age-associated renal fibrosis. To allow FAO completion, a coordinate network of enzymes and transport proteins is required. Indeed, the mitochondrial inner membrane is impermeable to fatty acyl-CoAs and a specialized system, well known as carnitine shuttle, is needed for translocating fatty acids moieties, conjugated with carnitine, into mitochondrial matrix for the β-oxidation. The first component of this system is the carnitine palmitoyltransferase 1 (CPT1) responsible for transfer acyl moieties to carnitine. Several studies indicated that the stimulation of CPT1 activity and expression has a protective effect against renal fibrosis. Therefore, the network of enzymes and transporters linked to FAO may represent potential pharmacological targets deserving further attention in the development of new drugs to attenuate renal dysfunction.
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Affiliation(s)
- Lara Console
- Unit of Biochemistry and Molecular Biotechnology, Department DiBEST (Biologia, Ecologia, Scienze della Terra), University of Calabria, Rende, Italy
| | - Mariafrancesca Scalise
- Unit of Biochemistry and Molecular Biotechnology, Department DiBEST (Biologia, Ecologia, Scienze della Terra), University of Calabria, Rende, Italy
| | - Nicola Giangregorio
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
| | - Annamaria Tonazzi
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
| | - Maria Barile
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Cesare Indiveri
- Unit of Biochemistry and Molecular Biotechnology, Department DiBEST (Biologia, Ecologia, Scienze della Terra), University of Calabria, Rende, Italy.,CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), Bari, Italy
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297
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Casalena GA, Yu L, Gil R, Rodriguez S, Sosa S, Janssen W, Azeloglu EU, Leventhal JS, Daehn IS. The diabetic microenvironment causes mitochondrial oxidative stress in glomerular endothelial cells and pathological crosstalk with podocytes. Cell Commun Signal 2020; 18:105. [PMID: 32641054 PMCID: PMC7341607 DOI: 10.1186/s12964-020-00605-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/29/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In the setting of diabetes mellitus, mitochondrial dysfunction and oxidative stress are important pathogenic mechanisms causing end organ damage, including diabetic kidney disease (DKD), but mechanistic understanding at a cellular level remains obscure. In mouse models of DKD, glomerular endothelial cell (GEC) dysfunction precedes albuminuria and contributes to neighboring podocyte dysfunction, implicating GECs in breakdown of the glomerular filtration barrier. In the following studies we wished to explore the cellular mechanisms by which GECs become dysfunctional in the diabetic milieu, and the impact to neighboring podocytes. METHODS Mouse GECs were exposed to high glucose media (HG) or 2.5% v/v serum from diabetic mice or serum from non-diabetic controls, and evaluated for mitochondrial function (oxygen consumption), structure (electron microscopy), morphology (mitotracker), mitochondrial superoxide (mitoSOX), as well as accumulation of oxidized products (DNA lesion frequency (8-oxoG, endo-G), double strand breaks (γ-H2AX), endothelial function (NOS activity), autophagy (LC3) and apoptotic cell death (Annexin/PI; caspase 3). Supernatant transfer experiments from GECs to podocytes were performed to establish the effects on podocyte survival and transwell experiments were performed to determine the effects in co-culture. RESULTS Diabetic serum specifically causes mitochondrial dysfunction and mitochondrial superoxide release in GECs. There is a rapid oxidation of mitochondrial DNA and loss of mitochondrial biogenesis without cell death. Many of these effects are blocked by mitoTEMPO a selective mitochondrial anti-oxidant. Secreted factors from dysfunctional GECs were sufficient to cause podocyte apoptosis in supernatant transfer experiments, or in co-culture but this did not occur when GECs had been previously treated with mitoTEMPO. CONCLUSION Dissecting the impact of the diabetic environment on individual cell-types from the kidney glomerulus indicates that GECs become dysfunctional and pathological to neighboring podocytes by increased levels of mitochondrial superoxide in GEC. These studies indicate that GEC-signaling to podocytes contributes to the loss of the glomerular filtration barrier in DKD. Video abstract.
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Affiliation(s)
- Gabriella A Casalena
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Liping Yu
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Roberto Gil
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Samuel Rodriguez
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Shantel Sosa
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - William Janssen
- Microscopy CoRE, The Icahn School of Medicine at Mount Sinai, New York, USA
| | - Evren U Azeloglu
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Jeremy S Leventhal
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA
| | - Ilse S Daehn
- Division of Nephrology, Department of Medicine, The Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1003, New York, NY, 10029, USA.
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298
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Ge M, Fontanesi F, Merscher S, Fornoni A. The Vicious Cycle of Renal Lipotoxicity and Mitochondrial Dysfunction. Front Physiol 2020; 11:732. [PMID: 32733268 PMCID: PMC7358947 DOI: 10.3389/fphys.2020.00732] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022] Open
Abstract
The kidney is one of the most energy-demanding organs that require abundant and healthy mitochondria to maintain proper function. Increasing evidence suggests a strong association between mitochondrial dysfunction and chronic kidney diseases (CKDs). Lipids are not only important sources of energy but also essential components of mitochondrial membrane structures. Dysregulation of mitochondrial oxidative metabolism and increased reactive oxygen species (ROS) production lead to compromised mitochondrial lipid utilization, resulting in lipid accumulation and renal lipotoxicity. However, lipotoxicity can be either the cause or the consequence of mitochondrial dysfunction. Imbalanced lipid metabolism, in turn, can hamper mitochondrial dynamics, contributing to the alteration of mitochondrial lipids and reduction in mitochondrial function. In this review, we summarize the interplay between renal lipotoxicity and mitochondrial dysfunction, with a focus on glomerular diseases.
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Affiliation(s)
- Mengyuan Ge
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States.,Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Flavia Fontanesi
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Sandra Merscher
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States.,Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States.,Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL, United States
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299
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Srivastava A, Prasad PV. Visualizing mitochondrial (dys)function using positron emission tomography imaging. Kidney Int 2020; 98:51-53. [PMID: 32571489 PMCID: PMC7745541 DOI: 10.1016/j.kint.2020.03.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 01/14/2023]
Abstract
Mitochondrial dysfunction is thought to be a critical pathway in the development and progression of kidney diseases, but optimal methods to assess kidney mitochondrial dysfunction are not well known. Saeki and colleagues use positron emission tomography imaging with a novel probe, 2-tert-butyl-4-chloro-5-[6-(4-18F-fluorobutoxy)-pyridin-3-ylmethoxy]-2H-pyridazin-3-one (18F-BCPP-BF), to visualize and assess kidney mitochondrial status. The authors demonstrate that reduced uptake of 18F-BCPP-BF, as assessed by positron emission tomography imaging, corresponds to reduced functioning mitochondria in 3 separate animal models of kidney diseases.
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Affiliation(s)
- Anand Srivastava
- Division of Nephrology and Hypertension, Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Pottumarthi V Prasad
- Department of Radiology, NorthShore University HealthSystem, Evanston, Illinois, USA.
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300
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Aparicio-Trejo OE, Avila-Rojas SH, Tapia E, Rojas-Morales P, León-Contreras JC, Martínez-Klimova E, Hernández-Pando R, Sánchez-Lozada LG, Pedraza-Chaverri J. Chronic impairment of mitochondrial bioenergetics and β-oxidation promotes experimental AKI-to-CKD transition induced by folic acid. Free Radic Biol Med 2020; 154:18-32. [PMID: 32360615 DOI: 10.1016/j.freeradbiomed.2020.04.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/27/2020] [Accepted: 04/17/2020] [Indexed: 12/13/2022]
Abstract
Recent studies suggest that mitochondrial bioenergetics and oxidative stress alterations may be common mechanisms involved in the progression of renal damage. However, the evolution of the mitochondrial alterations over time and the possible effects that their prevention could have in the progression of renal damage are not clear. Folic acid (FA)-induced kidney damage is a widely used experimental model to induce acute kidney injury (AKI), which can evolve to chronic kidney disease (CKD). Therefore, it has been extensively applied to study the mechanisms involved in AKI-to-CKD transition. We previously demonstrated that one day after FA administration, N-acetyl-cysteine (NAC) pre-administration prevented the development of AKI induced by FA. Such therapeutic effect was related to mitochondrial preservation. In the present study, we characterized the temporal course of mitochondrial bioenergetics and redox state alterations along the progression of renal damage induced by FA. Mitochondrial function was studied at different time points and showed a sustained impairment in oxidative phosphorylation capacity and a decrease in β-oxidation, decoupling, mitochondrial membrane potential depolarization and a pro-oxidative state, attributed to the reduction in activity of complexes I and III and mitochondrial cristae effacement, thus favoring the transition from AKI to CKD. Furthermore, the mitochondrial protection by NAC administration before AKI prevented not only the long-term deterioration of mitochondrial function at the chronic stage, but also CKD development. Taken together, our results support the idea that the prevention of mitochondrial dysfunction during an AKI event can be a useful strategy to prevent the transition to CKD.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Sabino Hazael Avila-Rojas
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Edilia Tapia
- Department of Cardio-Renal Physiopathology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - Pedro Rojas-Morales
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000, Mexico, Mexico City, Mexico
| | - Elena Martínez-Klimova
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000, Mexico, Mexico City, Mexico
| | - Laura Gabriela Sánchez-Lozada
- Department of Cardio-Renal Physiopathology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico.
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