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Su K, Zhao SL, Yang WX, Lo CS, Chenier I, Liao MC, Pang YC, Peng JZ, Miyata KN, Cailhier JF, Ethier J, Lattouf JB, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. NRF2 Deficiency Attenuates Diabetic Kidney Disease in Db/Db Mice via Down-Regulation of Angiotensinogen, SGLT2, CD36, and FABP4 Expression and Lipid Accumulation in Renal Proximal Tubular Cells. Antioxidants (Basel) 2023; 12:1715. [PMID: 37760019 PMCID: PMC10525648 DOI: 10.3390/antiox12091715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/17/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
The role(s) of nuclear factor erythroid 2-related factor 2 (NRF2) in diabetic kidney disease (DKD) is/are controversial. We hypothesized that Nrf2 deficiency in type 2 diabetes (T2D) db/db mice (db/dbNrf2 knockout (KO)) attenuates DKD progression through the down-regulation of angiotensinogen (AGT), sodium-glucose cotransporter-2 (SGLT2), scavenger receptor CD36, and fatty -acid-binding protein 4 (FABP4), and lipid accumulation in renal proximal tubular cells (RPTCs). Db/dbNrf2 KO mice were studied at 16 weeks of age. Human RPTCs (HK2) with NRF2 KO via CRISPR-Cas9 genome editing and kidneys from patients with or without T2D were examined. Compared with db/db mice, db/dbNrf2 KO mice had lower systolic blood pressure, fasting blood glucose, kidney hypertrophy, glomerular filtration rate, urinary albumin/creatinine ratio, tubular lipid droplet accumulation, and decreased expression of AGT, SGLT2, CD36, and FABP4 in RPTCs. Male and female mice had similar results. NRF2 KO attenuated the stimulatory effect of the Nrf2 activator, oltipraz, on AGT, SGLT2, and CD36 expression and high-glucose/free fatty acid (FFA)-stimulated lipid accumulation in HK2. Kidneys from T2D patients exhibited markedly higher levels of CD36 and FABP4 in RPTCs than kidneys from non-diabetic patients. These data suggest that NRF2 exacerbates DKD through the stimulation of AGT, SGLT2, CD36, and FABP4 expression and lipid accumulation in RPTCs of T2D.
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Affiliation(s)
- Ke Su
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Shui-Ling Zhao
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Wen-Xia Yang
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Chao-Sheng Lo
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Isabelle Chenier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Min-Chun Liao
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Yu-Chao Pang
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Jun-Zheng Peng
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Kana N. Miyata
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Jean-Francois Cailhier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Jean Ethier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Jean-Baptiste Lattouf
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - Janos G. Filep
- Centre de Recherche, Hôpital Maisonneuve-Rosemont, Département de Pathologie et Biologie Cellulaire, Université de Montréal, 5415 Boul. de l’Assomption, Montréal, QC H1T 2M4, Canada;
| | - Julie R. Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, 15 Parkman Street, WAC 709, Boston, MA 02114, USA;
| | - Shao-Ling Zhang
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
| | - John S. D. Chan
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Département de Médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC H2X 0A9, Canada; (K.S.); (S.-L.Z.); (W.-X.Y.); (C.-S.L.); (I.C.); (M.-C.L.); (Y.-C.P.); (J.-Z.P.); (K.N.M.); (J.-F.C.); (J.E.); (J.-B.L.)
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Chi Y, Zhang X, Liang D, Wang Y, Cai X, Dong J, Li L, Chi Z. ZnT8 Exerts Anti-apoptosis of Kidney Tubular Epithelial Cell in Diabetic Kidney Disease Through TNFAIP3-NF-κB Signal Pathways. Biol Trace Elem Res 2023; 201:2442-2457. [PMID: 35871203 DOI: 10.1007/s12011-022-03361-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/13/2022] [Indexed: 02/05/2023]
Abstract
Apoptosis of kidney tubular epithelial cells contributes to diabetic kidney disease (DKD) pathophysiology, but the mechanisms are not fully understood. Zinc transporter protein member 8 (ZnT8, SLC30A8) is a susceptive gene in diabetes. Here, we aim to investigate whether ZnT8 has effects on pathophysiology of DKD. The animal groups include control, ZnT8KO mice, STZ-induced, and ZnT8-KO-STZ. STZ-induced DKD was performed in male C57BL/6 J mice and in ZnT8-KO mice. High glucose (HG)-induced apoptosis in a normal rat kidney tubular epithelial cell line (NRK-52E cells) was performed in vitro. Transfection of hZnT8-EGFP or TNFAIP3 siRNA was done in NRK-52E cells. Flow cytometry with Annexin V-FITC/PI double staining and TUNEL analysis was performed for the detection of apoptosis. Gene expression at mRNA and protein levels was examined with real-time RT-PCR and Western blot. Urine albumin to creatinine ratio, proinflammatory cytokines, and apoptosis were enhanced in kidneys of STZ and ZnT8-KO-STZ mice compared to control or ZnT8-KO mice. ZnT8 overexpression after hZnT8-EGFP transfection decreased HG-stimulated inflammatory activity and apoptosis in NRK-52E cells. Furthermore, treatment with ZnSO4 blunted HG-induced apoptosis and NF-κB activation. ZnSO4 increased the abundance of zinc-finger protein TNF-α-induced protein 3 (TNFAIP3). Also, ZnT8 over-expression after hZnT8-EGFP transfection significantly ameliorates HG-induced NF-κB-dependent transcriptional activity and apoptotic protein expressions in NRK-52E cells, but the inhibitory effect of ZnT8 was significantly abolished with TNFAIP3 siRNA. Our study provides evidence that ZnT8 has protective effects against apoptosis of renal tubular epithelial cells through induction of TNFAIP3 and subsequent suppression of the NF-κB pathway.
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Affiliation(s)
- Yinmao Chi
- Department of Physiology, China Medical University, Shenyang, Liaoning Province, 110001, People's Republic of China
| | - Xiuli Zhang
- Department of Nephrology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong Province, 518000, People's Republic of China.
- Department of Nephrology, Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People's Republic of China.
| | - Dan Liang
- Troops of 95988 Unit, Changchun, Jilin, 158000, People's Republic of China
| | - Yue Wang
- Department of Tissue Culture, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning Province, 110001, People's Republic of China
| | - Xiaoyi Cai
- Department of Nephrology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong Province, 518000, People's Republic of China
- Shantou University Medical College, Shantou, Guangdong Province, 515000, People's Republic of China
| | - Jiqiu Dong
- Department of Nephrology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong Province, 518000, People's Republic of China
| | - Lingzhi Li
- Department of Nephrology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong Province, 518000, People's Republic of China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province, 110001, People's Republic of China
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Shen Q, Fang J, Guo H, Su X, Zhu B, Yao X, Wang Y, Cao A, Wang H, Wang L. Astragaloside IV attenuates podocyte apoptosis through ameliorating mitochondrial dysfunction by up-regulated Nrf2-ARE/TFAM signaling in diabetic kidney disease. Free Radic Biol Med 2023; 203:45-57. [PMID: 37030337 DOI: 10.1016/j.freeradbiomed.2023.03.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/01/2023] [Accepted: 03/23/2023] [Indexed: 04/10/2023]
Abstract
Defective antioxidant system as well as mitochondrial dysfunction contributes to the pathogenesis and progression of diabetic kidney disease (DKD). Nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated signaling is the central defensive mechanism against oxidative stress and therefore pharmacological activation of Nrf2 is a promising therapeutic strategy. In this study, using molecular docking we found that Astragaloside IV (AS-IV), an active ingredient from traditional formula of Huangqi decoction (HQD), exerted a higher potential to promote Nrf2 escape from Keap1-Nrf2 interaction via competitively bind to amino acid sites in Keap1. When podocyte exposed to high glucose (HG) stimulation, mitochondrial morphological alterations and podocyte apoptosis were presented and accompanied by Nrf2 and mitochondrial transcription factor A (TFAM) downregulation. Mechanistically, HG promoted a decrease in mitochondria-specific electron transport chain (ETC) complexes, ATP synthesis and mtDNA content as well as increased ROS production. Conversely, all these mitochondrial defects were dramatically alleviated by AS-IV, but suppression of Nrf2 with inhibitor or siRNA and TFAM siRNA simultaneously alleviated the AS-IV efficacy. Moreover, experimental diabetic mice exhibited significant renal injury as well as mitochondrial disorder, corresponding with the decreased expression of Nrf2 and TFAM. On the contrary, AS-IV reversed the abnormality and the Nrf2 and TFAM expression were also restored. Taken together, the present findings demonstrate the improvement of AS-IV on mitochondrial function, thereby resistance to oxidative stress-induced diabetic kidney injury and podocyte apoptosis, and the process is closely associated with activation of Nrf2-ARE/TFAM signaling.
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Affiliation(s)
- Qian Shen
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ji Fang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hengjiang Guo
- Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Anesthesiology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China; Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Hefei, 230032, China
| | - Xue Su
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bingbing Zhu
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xingmei Yao
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yunman Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Aili Cao
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hao Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Li Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Hefei, 230032, China.
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Lin DW, Hsu YC, Chang CC, Hsieh CC, Lin CL. Insights into the Molecular Mechanisms of NRF2 in Kidney Injury and Diseases. Int J Mol Sci 2023; 24:ijms24076053. [PMID: 37047024 PMCID: PMC10094034 DOI: 10.3390/ijms24076053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 04/14/2023] Open
Abstract
Redox is a constant phenomenon in organisms. From the signaling pathway transduction to the oxidative stress during the inflammation and disease process, all are related to reduction-oxidation (redox). Nuclear factor erythroid 2-related factor 2 (NRF2) is a transcription factor targeting many antioxidant genes. In non-stressed conditions, NRF2 maintains the hemostasis of redox with housekeeping work. It expresses constitutively with basal activity, maintained by Kelch-like-ECH-associated protein 1 (KEAP1)-associated ubiquitination and degradation. When encountering stress, it can be up-regulated by several mechanisms to exert its anti-oxidative ability in diseases or inflammatory processes to protect tissues and organs from further damage. From acute kidney injury to chronic kidney diseases, such as diabetic nephropathy or glomerular disease, many results of studies have suggested that, as a master of regulating redox, NRF2 is a therapeutic option. It was not until the early termination of the clinical phase 3 trial of diabetic nephropathy due to heart failure as an unexpected side effect that we renewed our understanding of NRF2. NRF2 is not just a simple antioxidant capacity but has pleiotropic activities, harmful or helpful, depending on the conditions and backgrounds.
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Affiliation(s)
- Da-Wei Lin
- Department of Internal Medicine, St. Martin de Porres Hospital, Chiayi 600, Taiwan
| | - Yung-Chien Hsu
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Cheng-Chih Chang
- Department of Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Ching-Chuan Hsieh
- Department of Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Chun-Liang Lin
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Kidney Research Center, Chang Gung Memorial Hospital, Taipei 105, Taiwan
- Center for Shockwave Medicine and Tissue Engineering, Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
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Wang W, Hong M, Wong NK, Deng J, Li Z, Ran Y, Li J, Sun L, Jin L, Guan BO. Surface-wettable nonenzymatic fiber-optic sensor for selective detection of hydrogen peroxide. OPTICS EXPRESS 2022; 30:26975-26987. [PMID: 36236879 DOI: 10.1364/oe.457320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/19/2022] [Indexed: 06/16/2023]
Abstract
A micro-nanostructure-based surface-modified fiber-optic sensor has been developed herein to selectively detect hydrogen peroxide (H2O2). In our design, phenylboronic ester-modified polymers were used as a modified cladding medium that allows chemo-optic transduction. Sensing is mechanistically based on oxidation and subsequent hydrolysis of the phenylboronic ester-modified polymer, which modulates hydrophobic properties of fiber-optic devices, which was confirmed during characterization of the chemical functional group and hydrophobicity of the active sensing material. This work illustrates a useful strategy of exploiting principles of chemical modifications to design surface-wettable fiber-optic sensing devices for detecting reactive species of broad relevance to biological and environmental analyses.
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Satou R, Franco M, Dugas CM, Katsurada A, Navar LG. Immunosuppression by Mycophenolate Mofetil Mitigates Intrarenal Angiotensinogen Augmentation in Angiotensin II-Dependent Hypertension. Int J Mol Sci 2022; 23:ijms23147680. [PMID: 35887028 PMCID: PMC9319385 DOI: 10.3390/ijms23147680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 02/01/2023] Open
Abstract
Augmentation of intrarenal angiotensinogen (AGT) leads to further formation of intrarenal angiotensin II (Ang II) and the development of hypertensive kidney injury. Recent studies demonstrated that macrophages and the enhanced production of pro-inflammatory cytokines can be crucial mediators of renal AGT augmentation in hypertension. Accordingly, this study investigated the effects of immunosuppression by mycophenolate mofetil (MMF) on intrarenal AGT augmentation. Ang II (80 ng/min) was infused with or without daily administration of MMF (50 mg/kg) to Sprague-Dawley rats for 2 weeks. Mean arterial pressure (MAP) in Ang II infused rats was slightly higher (169.7 ± 6.1 mmHg) than the Ang II + MMF group (154.7 ± 2.0 mmHg), but was not statistically different from the Ang II + MMF group. MMF treatment suppressed Ang II-induced renal macrophages and IL-6 elevation. Augmentation of urinary AGT by Ang II infusion was attenuated by MMF treatment (control: 89.3 ± 25.2, Ang II: 1194 ± 305.1, and Ang II + MMF: 389 ± 192.0 ng/day). The augmentation of urinary AGT by Ang II infusion was observed before the onset of proteinuria. Elevated intrarenal AGT mRNA and protein levels in Ang II infused rats were also normalized by the MMF treatment (AGT mRNA, Ang II: 2.5 ± 0.2 and Ang II + MMF: 1.5 ± 0.1, ratio to control). Ang II-induced proteinuria, mesangial expansion and renal tubulointerstitial fibrosis were attenuated by MMF. Furthermore, MMF treatment attenuated the augmentation of intrarenal NLRP3 mRNA, a component of inflammasome. These results indicate that stimulated cytokine production in macrophages contributes to intrarenal AGT augmentation in Ang II-dependent hypertension, which leads to the development of kidney injury.
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Affiliation(s)
- Ryousuke Satou
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, LA 70112, USA; (C.M.D.); (A.K.); (L.G.N.)
- Correspondence: ; Tel.: +1-504-988-4364
| | - Martha Franco
- Departments of Nephrology and Pathology, Instituto Nacional de Cardiologia, Mexico City 14080, Mexico;
| | - Courtney M. Dugas
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, LA 70112, USA; (C.M.D.); (A.K.); (L.G.N.)
| | - Akemi Katsurada
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, LA 70112, USA; (C.M.D.); (A.K.); (L.G.N.)
| | - L. Gabriel Navar
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, LA 70112, USA; (C.M.D.); (A.K.); (L.G.N.)
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Mundal SB, Rakner JJ, Silva GB, Gierman LM, Austdal M, Basnet P, Elschot M, Bakke SS, Ostrop J, Thomsen LCV, Moses EK, Acharya G, Bjørge L, Iversen AC. Divergent Regulation of Decidual Oxidative-Stress Response by NRF2 and KEAP1 in Preeclampsia with and without Fetal Growth Restriction. Int J Mol Sci 2022; 23:ijms23041966. [PMID: 35216082 PMCID: PMC8875334 DOI: 10.3390/ijms23041966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 01/01/2023] Open
Abstract
Utero-placental development in pregnancy depends on direct maternal–fetal interaction in the uterine wall decidua. Abnormal uterine vascular remodeling preceding placental oxidative stress and placental dysfunction are associated with preeclampsia and fetal growth restriction (FGR). Oxidative stress is counteracted by antioxidants and oxidative repair mechanisms regulated by the transcription factor nuclear factor erythroid 2-related factor 2 (NRF2). We aimed to determine the decidual regulation of the oxidative-stress response by NRF2 and its negative regulator Kelch-like ECH-associated protein 1 (KEAP1) in normal pregnancies and preeclamptic pregnancies with and without FGR. Decidual tissue from 145 pregnancies at delivery was assessed for oxidative stress, non-enzymatic antioxidant capacity, cellular NRF2- and KEAP1-protein expression, and NRF2-regulated transcriptional activation. Preeclampsia combined with FGR was associated with an increased oxidative-stress level and NRF2-regulated gene expression in the decidua, while decidual NRF2- and KEAP1-protein expression was unaffected. Although preeclampsia with normal fetal growth also showed increased decidual oxidative stress, NRF2-regulated gene expression was reduced, and KEAP1-protein expression was increased in areas of high trophoblast density. The trophoblast-dependent KEAP1-protein expression in preeclampsia with normal fetal growth indicates control of decidual oxidative stress by maternal–fetal interaction and underscores the importance of discriminating between preeclampsia with and without FGR.
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Affiliation(s)
- Siv Boon Mundal
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, UiT—The Arctic University of Norway, 9037 Tromsø, Norway; (P.B.); (G.A.)
| | - Johanne Johnsen Rakner
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
| | - Gabriela Brettas Silva
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
- Department of Gynecology and Obstetrics, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
| | - Lobke Marijn Gierman
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
- Department of Gynecology and Obstetrics, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
| | - Marie Austdal
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
- Department of Gynecology and Obstetrics, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
- Department of Research, Stavanger University Hospital, 4068 Stavanger, Norway
| | - Purusotam Basnet
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, UiT—The Arctic University of Norway, 9037 Tromsø, Norway; (P.B.); (G.A.)
- Department of Obstetrics and Gynecology, University Hospital of Northern Norway, 9037 Tromsø, Norway
| | - Mattijs Elschot
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway;
- Department of Radiology and Nuclear Medicine, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
| | - Siril Skaret Bakke
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
| | - Jenny Ostrop
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
| | - Liv Cecilie Vestrheim Thomsen
- Department of Gynecology and Obstetrics, Haukeland University Hospital, 5058 Bergen, Norway; (L.C.V.T.); (L.B.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Eric Keith Moses
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS 7000, Australia;
| | - Ganesh Acharya
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, UiT—The Arctic University of Norway, 9037 Tromsø, Norway; (P.B.); (G.A.)
- Department of Clinical Science, Division of Obstetrics and Gynecology, Intervention and Technology, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Line Bjørge
- Department of Gynecology and Obstetrics, Haukeland University Hospital, 5058 Bergen, Norway; (L.C.V.T.); (L.B.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Ann-Charlotte Iversen
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway; (S.B.M.); (J.J.R.); (G.B.S.); (L.M.G.); (M.A.); (S.S.B.); (J.O.)
- Department of Gynecology and Obstetrics, St. Olavs Hospital, Trondheim University Hospital, 7030 Trondheim, Norway
- Correspondence: ; Tel.: +47-93283877
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Ghareghomi S, Rahban M, Moosavi-Movahedi Z, Habibi-Rezaei M, Saso L, Moosavi-Movahedi AA. The Potential Role of Curcumin in Modulating the Master Antioxidant Pathway in Diabetic Hypoxia-Induced Complications. Molecules 2021; 26:molecules26247658. [PMID: 34946740 PMCID: PMC8706440 DOI: 10.3390/molecules26247658] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress is the leading player in the onset and development of various diseases. The Keap1-Nrf2 pathway is a pivotal antioxidant system that preserves the cells' redox balance. It decreases inflammation in which the nuclear trans-localization of Nrf2 as a transcription factor promotes various antioxidant responses in cells. Through some other directions and regulatory proteins, this pathway plays a fundamental role in preventing several diseases and reducing their complications. Regulation of the Nrf2 pathway occurs on transcriptional and post-transcriptional levels, and these regulations play a significant role in its activity. There is a subtle correlation between the Nrf2 pathway and the pivotal signaling pathways, including PI3 kinase/AKT/mTOR, NF-κB and HIF-1 factors. This demonstrates its role in the development of various diseases. Curcumin is a yellow polyphenolic compound from Curcuma longa with multiple bioactivities, including antioxidant, anti-inflammatory, anti-tumor, and anti-viral activities. Since hyperglycemia and increased reactive oxygen species (ROS) are the leading causes of common diabetic complications, reducing the generation of ROS can be a fundamental approach to dealing with these complications. Curcumin can be considered a potential treatment option by creating an efficient therapeutic to counteract ROS and reduce its detrimental effects. This review discusses Nrf2 pathway regulation at different levels and its correlation with other important pathways and proteins in the cell involved in the progression of diabetic complications and targeting these pathways by curcumin.
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Affiliation(s)
- Somayyeh Ghareghomi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran 1417466191, Iran; (S.G.); (M.R.)
| | - Mahdie Rahban
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran 1417466191, Iran; (S.G.); (M.R.)
| | | | - Mehran Habibi-Rezaei
- School of Biology, College of Science, University of Tehran, Tehran 1417466191, Iran
- Center of Excellence in NanoBiomedicine, University of Tehran, Tehran 1417466191, Iran
- Correspondence: (M.H.-R.); (A.A.M.-M.); Tel.: +98-21-6111-3214 (M.H.-R.); +98-21-6111-3381 (A.A.M.-M.); Fax: +98-21-6697-1941 (M.H.-R.); +98-21-6640-4680 (A.A.M.-M.)
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer,” Sapienza University of Rome, 00185 Rome, Italy;
| | - Ali Akbar Moosavi-Movahedi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran 1417466191, Iran; (S.G.); (M.R.)
- UNESCO Chair on Interdisciplinary Research in Diabetes, University of Tehran, Tehran 1417466191, Iran
- Correspondence: (M.H.-R.); (A.A.M.-M.); Tel.: +98-21-6111-3214 (M.H.-R.); +98-21-6111-3381 (A.A.M.-M.); Fax: +98-21-6697-1941 (M.H.-R.); +98-21-6640-4680 (A.A.M.-M.)
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9
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Yanofsky SM, Dugas CM, Katsurada A, Liu J, Saifudeen Z, El-Dahr SS, Satou R. Angiotensin II biphasically regulates cell differentiation in human iPSC-derived kidney organoids. Am J Physiol Renal Physiol 2021; 321:F559-F571. [PMID: 34448643 PMCID: PMC8616599 DOI: 10.1152/ajprenal.00134.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/09/2021] [Accepted: 08/25/2021] [Indexed: 12/28/2022] Open
Abstract
Human kidney organoid technology holds promise for novel kidney disease treatment strategies and utility in pharmacological and basic science. Given the crucial roles of the intrarenal renin-angiotensin system (RAS) and angiotensin II (ANG II) in the progression of kidney development and injury, we investigated the expression of RAS components and effects of ANG II on cell differentiation in human kidney organoids. Human induced pluripotent stem cell-derived kidney organoids were induced using a modified 18-day Takasato protocol. Gene expression analysis by digital PCR and immunostaining demonstrated the formation of renal compartments and expression of RAS components. The ANG II type 1 receptor (AT1R) was strongly expressed in the early phase of organoid development (around day 0), whereas ANG II type 2 receptor (AT2R) expression levels peaked on day 5. Thus, the organoids were treated with 100 nM ANG II in the early phase on days 0-5 (ANG II-E) or during the middle phase on days 5-10 (ANG II-M). ANG II-E was observed to decrease levels of marker genes for renal tubules and proximal tubules, and the downregulation of renal tubules was inhibited by an AT1R antagonist. In contrast, ANG II-M increased levels of markers for podocytes, the ureteric tip, and the nephrogenic mesenchyme, and an AT2R blocker attenuated the ANG II-M-induced augmentation of podocyte formation. These findings demonstrate RAS expression and ANG II exertion of biphasic effects on cell differentiation through distinct mediatory roles of AT1R and AT2R, providing a novel strategy to establish and further characterize the developmental potential of human induced pluripotent stem cell-derived kidney organoids.NEW & NOTEWORTHY This study demonstrates angiotensin II exertion of biphasic effects on cell differentiation through distinct mediatory roles of angiotensin II type 1 receptor and type 2 receptor in human induced pluripotent stem cell-derived kidney organoids, providing a novel strategy to establish and further characterize the developmental potential of the human kidney organoids.
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MESH Headings
- Angiotensin II/pharmacology
- Cell Differentiation/drug effects
- Cell Line
- Gene Expression Regulation, Developmental
- Humans
- Induced Pluripotent Stem Cells/drug effects
- Induced Pluripotent Stem Cells/metabolism
- Kidney/cytology
- Kidney/drug effects
- Kidney/metabolism
- Organoids/cytology
- Organoids/drug effects
- Organoids/metabolism
- Receptor, Angiotensin, Type 1/agonists
- Receptor, Angiotensin, Type 1/genetics
- Receptor, Angiotensin, Type 1/metabolism
- Receptor, Angiotensin, Type 2/agonists
- Receptor, Angiotensin, Type 2/genetics
- Receptor, Angiotensin, Type 2/metabolism
- Renin-Angiotensin System/drug effects
- Signal Transduction
- Time Factors
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Affiliation(s)
- Stacy M Yanofsky
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Courtney M Dugas
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Akemi Katsurada
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Jiao Liu
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana
| | - Zubaida Saifudeen
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana
| | - Samir S El-Dahr
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana
| | - Ryousuke Satou
- Department of Physiology and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
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10
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Parga JA, Rodriguez-Perez AI, Garcia-Garrote M, Rodriguez-Pallares J, Labandeira-Garcia JL. NRF2 Activation and Downstream Effects: Focus on Parkinson's Disease and Brain Angiotensin. Antioxidants (Basel) 2021; 10:antiox10111649. [PMID: 34829520 PMCID: PMC8614768 DOI: 10.3390/antiox10111649] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022] Open
Abstract
Reactive oxygen species (ROS) are signalling molecules used to regulate cellular metabolism and homeostasis. However, excessive ROS production causes oxidative stress, one of the main mechanisms associated with the origin and progression of neurodegenerative disorders such as Parkinson's disease. NRF2 (Nuclear Factor-Erythroid 2 Like 2) is a transcription factor that orchestrates the cellular response to oxidative stress. The regulation of NRF2 signalling has been shown to be a promising strategy to modulate the progression of the neurodegeneration associated to Parkinson's disease. The NRF2 pathway has been shown to be affected in patients with this disease, and activation of NRF2 has neuroprotective effects in preclinical models, demonstrating the therapeutic potential of this pathway. In this review, we highlight recent advances regarding the regulation of NRF2, including the effect of Angiotensin II as an endogenous signalling molecule able to regulate ROS production and oxidative stress in dopaminergic neurons. The genes regulated and the downstream effects of activation, with special focus on Kruppel Like Factor 9 (KLF9) transcription factor, provide clues about the mechanisms involved in the neurodegenerative process as well as future therapeutic approaches.
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Affiliation(s)
- Juan A. Parga
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), IDIS, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.I.R.-P.); (M.G.-G.); (J.R.-P.)
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain
- Laboratory of Cellular and Molecular Neurobiology of Parkinson’s Disease, CIMUS, Department of Morphological Sciences, University of Santiago de Compostela, R/ San Francisco s/n, 15782 Santiago de Compostela, Spain
- Correspondence: (J.A.P.); (J.L.L.-G.)
| | - Ana I. Rodriguez-Perez
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), IDIS, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.I.R.-P.); (M.G.-G.); (J.R.-P.)
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain
- Laboratory of Cellular and Molecular Neurobiology of Parkinson’s Disease, CIMUS, Department of Morphological Sciences, University of Santiago de Compostela, R/ San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - Maria Garcia-Garrote
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), IDIS, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.I.R.-P.); (M.G.-G.); (J.R.-P.)
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain
- Laboratory of Cellular and Molecular Neurobiology of Parkinson’s Disease, CIMUS, Department of Morphological Sciences, University of Santiago de Compostela, R/ San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - Jannette Rodriguez-Pallares
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), IDIS, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.I.R.-P.); (M.G.-G.); (J.R.-P.)
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain
- Laboratory of Cellular and Molecular Neurobiology of Parkinson’s Disease, CIMUS, Department of Morphological Sciences, University of Santiago de Compostela, R/ San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - Jose L. Labandeira-Garcia
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), IDIS, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.I.R.-P.); (M.G.-G.); (J.R.-P.)
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), 28031 Madrid, Spain
- Laboratory of Cellular and Molecular Neurobiology of Parkinson’s Disease, CIMUS, Department of Morphological Sciences, University of Santiago de Compostela, R/ San Francisco s/n, 15782 Santiago de Compostela, Spain
- Correspondence: (J.A.P.); (J.L.L.-G.)
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11
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Zhao S, Lo CS, Miyata KN, Ghosh A, Zhao XP, Chenier I, Cailhier JF, Ethier J, Lattouf JB, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Overexpression of Nrf2 in Renal Proximal Tubular Cells Stimulates Sodium-Glucose Cotransporter 2 Expression and Exacerbates Dysglycemia and Kidney Injury in Diabetic Mice. Diabetes 2021; 70:1388-1403. [PMID: 33820760 DOI: 10.2337/db20-1126] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 03/27/2021] [Indexed: 11/13/2022]
Abstract
We investigated the impact of nuclear factor erythroid 2-related factor 2 (Nrf2) overexpression in renal proximal tubular cells (RPTCs) on blood glucose, kidney injury, and sodium-glucose cotransporter 2 (Sglt2) expression in diabetic Akita Nrf2 -/-/Nrf2RPTC transgenic (Tg) mice. Immortalized human RPTCs (HK2) stably transfected with plasmid containing the SGLT2 promoter and human kidneys from patients with diabetes were also studied. Nrf2 overexpression was associated with increased blood glucose, glomerular filtration rate, urinary albumin-to-creatinine ratio, tubulointerstitial fibrosis, and Sglt2 expression in Akita Nrf2 -/-/Nrf2RPTC Tg mice compared with their Akita Nrf2 -/- littermates. In vitro, oltipraz or transfection of NRF2 cDNA stimulated SGLT2 expression and SGLT2 promoter activity in HK2, and these effects were inhibited by trigonelline or NRF2 siRNA. The deletion of the NRF2-responsive element (NRF2-RE) in the SGLT2 promoter abolished the stimulatory effect of oltipraz on SGLT2 promoter activity. NRF2 binding to the NRF2-RE of the SGLT2 promoter was confirmed by gel mobility shift assay and chromatin immunoprecipitation assays. Kidneys from patients with diabetes exhibited higher levels of NRF2 and SGLT2 in the RPTCs than kidneys from patients without diabetes. These results suggest a link by which NRF2 mediates hyperglycemia stimulation of SGLT2 expression and exacerbates blood glucose and kidney injury in diabetes.
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Affiliation(s)
- Shuiling Zhao
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Chao-Sheng Lo
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Kana N Miyata
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Anindya Ghosh
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Xin-Ping Zhao
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Isabelle Chenier
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Francois Cailhier
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Jean Ethier
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Baptiste Lattouf
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - Janos G Filep
- Centre de Recherche, Hôpital Maisonneuve-Rosemont, and Department of Pathology and Cell Biology, Université de Montréal, Montreal, Quebec, Canada
| | - Julie R Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Shao-Ling Zhang
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
| | - John S D Chan
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, and Département de Médecine, Université de Montréal, Montreal, Quebec, Canada
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12
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Xiao Y, Deng J, Li C, Gong X, Gui Z, Huang J, Zhang Y, Liu Y, Ye X, Li X. Epiberberine ameliorated diabetic nephropathy by inactivating the angiotensinogen (Agt) to repress TGFβ/Smad2 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 83:153488. [PMID: 33571918 DOI: 10.1016/j.phymed.2021.153488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN) is a severe microvascular complication of diabetes with prominent morbidity and mortality. At present, there are hardly any effective drugs to treat DN. Epiberberine (EPI), an isoquinoline alkaloid, has attracted considerable attention due to its anti-hyperglycemic, anti-hyperlipidemic, and anti-inflammatory functions. However, whether there is a protective effect of EPI on DN has not been reported. PURPOSE The research was aimed to investigate the activities of EPI alleviating kidney damage in db/db mice and to explore its possible mechanisms. STUDY DESIGN The db/db mice and high-glucose (HG) induced glomerular mesangial cells (GMCs) were used to explore the protective effect of EPI on DN in vivo and in vitro. METHODS The changes in fasting blood glucose, metabolic index, renal function, and histopathological morphology in db/db mice were detected to evaluate the therapeutic effect of EPI. Then, renal transcriptome and molecular docking were used to screen the key targets. Subsequently, HG-induced GMCs through mimicing the pathological changes in DN were utilized to study the renal protective effects of EPI and its potential mechanism. RESULTS The results in vivo showed that EPI administration for 8 weeks significantly alleviated diabetes-related metabolic disorders, improved renal functions, and relieved the histopathological abnormalities of renal tissue, especially renal fibrosis in db/db mice. The results in vitro showed that EPI inhibited the proliferation and induced the G2/M phase arrest of HG-induced GMCs. Moreover, a key gene Angiotensinogen (Agt) was screen out by the RNA-seq of kidney and molecular docking, and EPI reduced Agt, TGFβ1, and Smad2 expression in vitro and in vivo. Noteworthy, Agt knockdown by siRNA significantly attenuated these beneficial efficacies exerted by EPI, indicating that Agt played a crucial role in the process of EPI improving DN. CONCLUSION These findings suggested that EPI might be a potential drug for the treatment of DN dependent on the Agt-TGFβ/Smad2 pathway.
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Affiliation(s)
- Yaping Xiao
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Jianling Deng
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Chunming Li
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Xiaobao Gong
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Zhenwei Gui
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jieyao Huang
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Yaru Zhang
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yan Liu
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China
| | - Xiaoli Ye
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing 400715, China.
| | - Xuegang Li
- College of Pharmaceutical Sciences. Translational Pharmacy Center of Medical Research Institute. Southwest University, Chongqing 400716, China.
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13
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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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14
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Reina-Couto M, Afonso J, Carvalho J, Morgado L, Ronchi FA, de Oliveira Leite AP, Dias CC, Casarini DE, Bettencourt P, Albino-Teixeira A, Morato M, Sousa T. Interrelationship between renin-angiotensin-aldosterone system and oxidative stress in chronic heart failure patients with or without renal impairment. Biomed Pharmacother 2021; 133:110938. [DOI: 10.1016/j.biopha.2020.110938] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 10/18/2020] [Accepted: 10/24/2020] [Indexed: 12/22/2022] Open
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15
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Zang H, Wu W, Qi L, Tan W, Nagarkatti P, Nagarkatti M, Wang X, Cui T. Autophagy Inhibition Enables Nrf2 to Exaggerate the Progression of Diabetic Cardiomyopathy in Mice. Diabetes 2020; 69:2720-2734. [PMID: 32948607 PMCID: PMC7679777 DOI: 10.2337/db19-1176] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 09/10/2020] [Indexed: 12/12/2022]
Abstract
Nuclear factor-erythroid factor 2-related factor 2 (Nrf2) may either ameliorate or worsen diabetic cardiomyopathy. However, the underlying mechanisms are poorly understood. Herein we report a novel mechanism of Nrf2-mediated myocardial damage in type 1 diabetes (T1D). Global Nrf2 knockout (Nrf2KO) hardly affected the onset of cardiac dysfunction induced by T1D but slowed down its progression in mice independent of sex. In addition, Nrf2KO inhibited cardiac pathological remodeling, apoptosis, and oxidative stress associated with both onset and advancement of cardiac dysfunction in T1D. Such Nrf2-mediated progression of diabetic cardiomyopathy was confirmed by a cardiomyocyte-restricted (CR) Nrf2 transgenic approach in mice. Moreover, cardiac autophagy inhibition via CR knockout of autophagy-related 5 gene (CR-Atg5KO) led to early onset and accelerated development of cardiomyopathy in T1D, and CR-Atg5KO-induced adverse phenotypes were rescued by additional Nrf2KO. Mechanistically, chronic T1D leads to glucolipotoxicity inhibiting autolysosome efflux, which in turn intensifies Nrf2-driven transcription to fuel lipid peroxidation while inactivating Nrf2-mediated antioxidant defense and impairing Nrf2-coordinated iron metabolism, thereby leading to ferroptosis in cardiomyocytes. These results demonstrate that diabetes over time causes autophagy deficiency, which turns off Nrf2-mediated defense while switching on an Nrf2-operated pathological program toward ferroptosis in cardiomyocytes, thereby worsening the progression of diabetic cardiomyopathy.
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Affiliation(s)
- Huimei Zang
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC
| | - Weiwei Wu
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC
| | - Lei Qi
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC
| | - Wenbin Tan
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC
| | - Xuejun Wang
- Division of Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Vermillion, SD
| | - Taixing Cui
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC
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16
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Noh MR, Kong MJ, Han SJ, Kim JI, Park KM. Isocitrate dehydrogenase 2 deficiency aggravates prolonged high-fat diet intake-induced hypertension. Redox Biol 2020; 34:101548. [PMID: 32388270 PMCID: PMC7210593 DOI: 10.1016/j.redox.2020.101548] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023] Open
Abstract
The development of hypertension is associated with mitochondrial redox balance disruptions. NADP+-dependent isocitrate dehydrogenase 2 (IDH2) plays an important role in the maintenance of mitochondrial redox balance by producing mitochondrial NADPH, which is an essential cofactor in the reduction of glutathione (from GSSG to GSH) to reduced form of glutathione (GSH). We investigated the association of IDH2 between the development of prolonged high-fat diet (HFD)-induced hypertension. Idh2 gene-deleted (Idh2-/-) male mice and wild-type (Idh2+/+) littermates were fed either HFD or low-fat diet (LFD). Some mice were administrated with Mito-TEMPO, a mitochondria-specific antioxidant. HFD feeding increased blood pressure (BP) in both Idh2-/- mice and Idh2+/+ mice. HFD-induced BP increase was greater in Idh2-/- than Idh2+/+ mice. HFD intake decreased IDH2 activity, NADPH levels, and the GSH/(GSH + GSSG) ratio in the renal mitochondria. However, HFD intake increased mitochondrial ROS levels, along with the accompanying oxidative stress and damage. HFD intake increased angiotensin II receptor 1 type 1 mRNA levels in the kidneys and plasma renin and angiotensin II concentrations. These HFD-induced changes were more prominent in Idh2-/- mice than Idh2+/+ mice. Mito-TEMPO mitigated the HFD-induced changes in both Idh2-/- and Idh2+/+ mice, with greater effects in Idh2-/- mice than Idh2+/+ mice. These results indicate that prolonged HFD intake disrupts the IDH2-NADPH-GSH-associated antioxidant system and activates the renin-angiotensin system in the kidney, leading to increased BP, suggesting that IDH2 is a critical enzyme in the development of hypertension and that the IDH2-associated antioxidant system could serve as a potential hypertension treatment target.
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Affiliation(s)
- Mi Ra Noh
- Department of Anatomy, Cardiovascular Research Center and BK21 Plus, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
| | - Min Jung Kong
- Department of Anatomy, Cardiovascular Research Center and BK21 Plus, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
| | - Sang Jun Han
- Department of Anatomy, Cardiovascular Research Center and BK21 Plus, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea
| | - Jee In Kim
- Department of Molecular Medicine, Keimyung University School of Medicine, 1095 Dalgubeol-daero, Dalseogu, Daegu, 42601, Republic of Korea
| | - Kwon Moo Park
- Department of Anatomy, Cardiovascular Research Center and BK21 Plus, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Junggu, Daegu, 41944, Republic of Korea.
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17
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Combination of Broccoli Sprout Extract and Zinc Provides Better Protection against Intermittent Hypoxia-Induced Cardiomyopathy Than Monotherapy in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2985901. [PMID: 31934264 PMCID: PMC6942874 DOI: 10.1155/2019/2985901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/31/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022]
Abstract
Nuclear factor-E2-related factor 2 (Nrf2) and metallothionein have each been reported to protect against chronic intermittent hypoxia- (IH-) induced cardiomyopathy. Sulforaphane-rich broccoli sprout extract (BSE) and zinc can effectively induce Nrf2 and metallothionein, respectively, to protect against IH-induced cardiomyopathy via antioxidative stress. However, whether the cardiac protective effects of the combination of BSE and zinc can be synergistic or the same has not been evaluated. In this study, we treated 8-week-old C57BL/6J mice with BSE and/or zinc during exposure to IH for 8 weeks. Cardiac dysfunction, as determined by echocardiography, and pathological remodeling and abnormalities, including cardiac fibrosis, inflammation, and oxidative damage, examined by histopathology and western blotting, were clearly observed in IH mice but were not significant in IH mice treated with either BSE, zinc, or zinc/BSE. Furthermore, the effects of the combined treatment with BSE and zinc were always greater than those of single treatments. Nrf2 function and metallothionein expression in the heart increased to a greater extent using the combination of BSE and zinc than using BSE or zinc alone. These findings for the first time indicate that the dual activation of Nrf2 and metallothionein by combined treatment with BSE and zinc may be more effective than monotherapy at preventing the development of IH-induced cardiomyopathy.
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18
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Satou R, Cypress MW, Woods TC, Katsurada A, Dugas CM, Fonseca VA, Navar LG. Blockade of sodium-glucose cotransporter 2 suppresses high glucose-induced angiotensinogen augmentation in renal proximal tubular cells. Am J Physiol Renal Physiol 2019; 318:F67-F75. [PMID: 31682172 DOI: 10.1152/ajprenal.00402.2019] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Renal proximal tubular angiotensinogen (AGT) is increased by hyperglycemia (HG) in diabetes mellitus, which augments intrarenal angiotensin II formation, contributing to the development of hypertension and kidney injury. Sodium-glucose cotransporter 2 (SGLT2) is abundantly expressed in proximal tubular cells (PTCs). The present study investigated the effects of canagliflozin (CANA), a SGLT2 inhibitor, on HG-induced AGT elevation in cultured PTCs. Mouse PTCs were treated with 5-25 mM glucose. CANA (0-10 µM) was applied 1 h before glucose treatment. Glucose (10 mM) increased AGT mRNA and protein levels at 12 h (3.06 ± 0.48-fold in protein), and 1 and 10 µM CANA as well as SGLT2 shRNA attenuated the AGT augmentation. CANA did not suppress the elevated AGT levels induced by 25 mM glucose. Increased AGT expression induced by treatment with pyruvate, a glucose metabolite that does not require SGLT2 for uptake, was not attenuated by CANA. In HG-treated PTCs, intracellular reactive oxygen species levels were elevated compared with baseline (4.24 ± 0.23-fold), and these were also inhibited by CANA. Furthermore, tempol, an antioxidant, attenuated AGT upregulation in HG-treated PTCs. HG-induced AGT upregulation was not inhibited by an angiotensin II receptor antagonist, indicating that HG stimulates AGT expression in an angiotensin II-independent manner. These results indicate that enhanced glucose entry via SGLT2 into PTCs elevates intracellular reactive oxygen species generation by stimulation of glycolysis and consequent AGT augmentation. SGLT2 blockade limits HG-induced AGT stimulation, thus reducing the development of kidney injury in diabetes mellitus.
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Affiliation(s)
- Ryousuke Satou
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Michael W Cypress
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - T Cooper Woods
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Akemi Katsurada
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Courtney M Dugas
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Vivian A Fonseca
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - L Gabriel Navar
- Department of Physiology and Department of Medicine and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
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19
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Peroxisomal Hydrogen Peroxide Metabolism and Signaling in Health and Disease. Int J Mol Sci 2019; 20:ijms20153673. [PMID: 31357514 PMCID: PMC6695606 DOI: 10.3390/ijms20153673] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 12/29/2022] Open
Abstract
Hydrogen peroxide (H2O2), a non-radical reactive oxygen species generated during many (patho)physiological conditions, is currently universally recognized as an important mediator of redox-regulated processes. Depending on its spatiotemporal accumulation profile, this molecule may act as a signaling messenger or cause oxidative damage. The focus of this review is to comprehensively evaluate the evidence that peroxisomes, organelles best known for their role in cellular lipid metabolism, also serve as hubs in the H2O2 signaling network. We first briefly introduce the basic concepts of how H2O2 can drive cellular signaling events. Next, we outline the peroxisomal enzyme systems involved in H2O2 metabolism in mammals and reflect on how this oxidant can permeate across the organellar membrane. In addition, we provide an up-to-date overview of molecular targets and biological processes that can be affected by changes in peroxisomal H2O2 metabolism. Where possible, emphasis is placed on the molecular mechanisms and factors involved. From the data presented, it is clear that there are still numerous gaps in our knowledge. Therefore, gaining more insight into how peroxisomes are integrated in the cellular H2O2 signaling network is of key importance to unravel the precise role of peroxisomal H2O2 production and scavenging in normal and pathological conditions.
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20
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Wang J, Wang S, Wang W, Chen J, Zhang Z, Zheng Q, Liu Q, Cai L. Protection against diabetic cardiomyopathy is achieved using a combination of sulforaphane and zinc in type 1 diabetic OVE26 mice. J Cell Mol Med 2019; 23:6319-6330. [PMID: 31270951 PMCID: PMC6714218 DOI: 10.1111/jcmm.14520] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/20/2019] [Accepted: 06/15/2019] [Indexed: 12/17/2022] Open
Abstract
Sulforaphane (SFN) can effectively induce nuclear factor E2–related factor 2 (Nrf2), and zinc (Zn) can effectively induce metallothionein (MT), both of which have been shown to protect against diabetic cardiomyopathy (DCM). However, it is unclear whether combined treatment with SFN and Zn offers better cardiac protection than either one alone. Here, we treated 5‐week‐old OVE mice that spontaneously develop type 1 diabetes with SFN and/or Zn for 18 weeks. Cardiac dysfunction, by echocardiography, and pathological alterations and remodelling, shown by cardiac hypertrophy, fibrosis, inflammation and oxidative damage, examined by histopathology, Western blotting and real‐time PCR, were observed in OVE mice. All these dysfunction and pathological abnormalities seen in OVE mice were attenuated in OVE mice with treatment of either SFN, Zn or SFN/Zn, and the combined treatment with SFN/Zn was better than single treatments at ameliorating DCM. In addition, combined SFN and Zn treatment increased Nrf2 function and MT expression in the heart of OVE mice to a greater extent than SFN or Zn alone. This indicates that the dual activation of Nrf2 and MT by combined treatment with SFN and Zn may be more effective than monotherapy at preventing the development of DCM via complementary, additive mechanisms.
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Affiliation(s)
- Jiqun Wang
- The Center of Cardiovascular Diseases, The First Hospital of Jilin University, Changchun, China.,Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, Kentucky, USA
| | - Shudong Wang
- The Center of Cardiovascular Diseases, The First Hospital of Jilin University, Changchun, China
| | - Wanning Wang
- Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, Kentucky, USA.,Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Jing Chen
- Department of Otolaryngology, Stanford University, Palo Alto, California, USA
| | - Zhiguo Zhang
- The Center of Cardiovascular Diseases, The First Hospital of Jilin University, Changchun, China
| | - Qi Zheng
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, Kentucky, USA
| | - Quan Liu
- The Center of Cardiovascular Diseases, The First Hospital of Jilin University, Changchun, China
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, Kentucky, USA.,Departments of Radiation Oncology, Pharmacology and Toxicology, University of Louisville, Louisville, Kentucky, USA
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21
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Ghosh A, Zhao S, Lo CS, Maachi H, Chenier I, Lateef MA, Abdo S, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Heterogeneous Nuclear Ribonucleoprotein F Mediates Insulin Inhibition of Bcl2-Modifying Factor Expression and Tubulopathy in Diabetic Kidney. Sci Rep 2019; 9:6687. [PMID: 31040360 PMCID: PMC6491582 DOI: 10.1038/s41598-019-43218-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/04/2019] [Indexed: 11/25/2022] Open
Abstract
We investigated the molecular mechanism(s) by which insulin prevents Bcl2-modifying factor (Bmf)-induced renal proximal tubular cell (RPTC) apoptosis and loss in diabetic mice. Transgenic mice (Tg) mice specifically overexpressing human BMF in RPTCs and non-Tg littermates were studied at 10 to 20 weeks of age. Non-diabetic littermates, diabetic Akita mice +/− insulin implant, Akita Tg mice specifically overexpressing heterogeneous nuclear ribonucleoprotein F (hnRNP F) in their RPTCs and immortalized rat renal proximal tubular cells (IRPTCs) were also studied. BMF-Tg mice exhibited higher systolic blood pressure, urinary albumin/creatinine ratio, RPTC apoptosis and urinary RPTCs than non-Tg mice. Insulin treatment in Akita mice and Akita mice overexpressing hnRNP F suppressed Bmf expression and RPTC apoptosis. In hyperinsulinemic-euglycemic wild type mice, renal Bmf expression was down-regulated with up-regulation of hnRNP F. In vitro, insulin inhibited high glucose-stimulation of Bmf expression, predominantly via p44/42 mitogen-activated protein kinase (MAPK) signaling. Transfection of p44/42 MAPK or hnRNP F small interfering RNA (siRNA) prevented insulin inhibition of Bmf expression. HnRNP F inhibited Bmf transcription via hnRNP F-responsive element in the Bmf promoter. Our results demonstrate that hnRNP F suppression of Bmf transcription is an important mechanism by which insulin protects RPTCs from apoptosis in diabetes.
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Affiliation(s)
- Anindya Ghosh
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Shuiling Zhao
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Chao-Sheng Lo
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Hasna Maachi
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Isabelle Chenier
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Muhammad Abdul Lateef
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Shaaban Abdo
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada
| | - Janos G Filep
- Département de pathologie et biologie cellulaire, Université de Montréal, Centre de recherche, Hôpital Maisonneuve-Rosemont, 5415 boul. de l'Assomption, Montréal, QC, H1T 2M4, Canada
| | - Julie R Ingelfinger
- Harvard Medical School, Pediatric Nephrology Unit, Massachusetts General Hospital, 15 Parkman Street, WAC 709, Boston, MA, 02114-3117, USA
| | - Shao-Ling Zhang
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada.
| | - John S D Chan
- Département de medecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint Denis Street, Montréal, QC, H2X 0A9, Canada.
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22
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Gebrelibanos Hiben M, de Haan L, Spenkelink B, Wesseling S, Louisse J, Vervoort J, Rietjens IMCM. Effects of Maerua subcordata (Gilg) DeWolf on electrophile-responsive element (EpRE)-mediated gene expression in vitro. PLoS One 2019; 14:e0215155. [PMID: 30986264 PMCID: PMC6464171 DOI: 10.1371/journal.pone.0215155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 03/27/2019] [Indexed: 01/11/2023] Open
Abstract
Plant extracts and phytochemicals may prevent chronic diseases via activation of adaptive cellular stress response pathways including induction of antioxidant and phase II detoxifying enzymes. The regulatory regions of these inducible genes encode the electrophile-response element (EpRE). This study tested the EpRE induction ability of Maerua subcordata (fruit, leaf, root, seed) methanol extracts and selected candidate constituents thereof, identified by liquid chromatography coupled with multistage mass spectroscopy, employing an EpRE luciferase reporter gene assay using hepa-1c1c7 mouse hepatoma cells. A parallel Cytotox CALUX assay using human osteosarcoma U2OS cells was used to monitor any non-specific changes in luciferase activity or cytotoxicity. Results showed that fruit, root, and seed extracts were non-cytotoxic up to a concentration of 30 gram dry weight per litre but the leaf extract exhibited some cytotoxicity and that the leaf (despite some cytotoxicity), fruit, and seed extracts showed strong induction of EpRE mediated gene expression while induction by the root extract was minimal. Selected candidates included glucosinolates, isothiocyanates, and some biogenic amines. Subsequent studies showed that methyl-, ethyl-, isopropyl-, isobutyl- isothiocyanates, and sec-butyl thiocyanate as well as glucobrassicin induced concentration (1–100 μM) dependent EpRE-mediated gene expression while the biogenic amines stachydrine and trigonelline acted as inhibitors of EpRE-mediated gene expression at 100 μM. The identification of glucolepidiin, glucobrassicin, glucocapparin, stachydrine, and trigonelline in all extracts was confirmed using standards and based on multiple reaction monitoring; yet, glucobrassicin level in the root extract was negligible. In conclusion, this study provided a first report on EpRE mediated gene expression effects of M. subcordata; and despite detection of different glucosinolates in all extracts, those containing glucobrassicin particularly displayed high EpRE induction. Because EpRE inducers are cytoprotective and potential chemopreventive agents while inhibitors are suggested adjuvants of chemotherapy, results of this study imply that process manipulation of this plant may result in herbal preparations that may be used as chemopreventive agents or adjuvants of chemotherapies.
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Affiliation(s)
- Mebrahtom Gebrelibanos Hiben
- Division of Toxicology, Wageningen University, WE Wageningen, The Netherlands
- Department of Pharmacognosy, School of Pharmacy, College of Health Sciences, Mekelle University, Mekelle, Ethiopia
- * E-mail: ,
| | - Laura de Haan
- Division of Toxicology, Wageningen University, WE Wageningen, The Netherlands
| | - Bert Spenkelink
- Division of Toxicology, Wageningen University, WE Wageningen, The Netherlands
| | - Sebas Wesseling
- Division of Toxicology, Wageningen University, WE Wageningen, The Netherlands
| | - Jochem Louisse
- Division of Toxicology, Wageningen University, WE Wageningen, The Netherlands
| | - Jacques Vervoort
- Laboratory of Biochemistry, Wageningen University, WE Wageningen, The Netherlands
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23
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Wang CY, Xu Y, Wang X, Guo C, Wang T, Wang ZY. Dl-3-n-Butylphthalide Inhibits NLRP3 Inflammasome and Mitigates Alzheimer's-Like Pathology via Nrf2-TXNIP-TrX Axis. Antioxid Redox Signal 2019; 30:1411-1431. [PMID: 29634349 DOI: 10.1089/ars.2017.7440] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIMS Oxidative stress and neuroinflammation play important roles in the pathology of Alzheimer's disease (AD). Thioredoxin-interacting protein (TXNIP), an endogenous inhibitor of antioxidant thioredoxin, is suspected to be an important modulator of oxidative stress and inflammation. However, the underlying mechanism involved in the abnormal homeostasis of TXNIP-thioredoxin (TrX) in AD pathogenesis remains unclear. RESULTS Using the Swedish mutant form of APP (APPswe)/PSEN1dE9 transgenic mouse (APP/PS1) and human-derived neuronal cells as model systems, we disclosed the impairment of the nuclear factor erythroid 2-related factor 2 (Nrf2)-TXNIP-TrX signaling in Alzheimer's-like pathology. We observed that the immune staining of TXNIP was increased in postmortem AD brain. The chronic accumulation of inflammatory mediator in neuronal cells facilitates interactions of TXNIP-nucleotide binding oligomerization domain-like receptor family, pyrin domain containing 3 (NLRP3) and NLRP3-ASC, which increases β-amyloid (Aβ) secretion. The antioxidant Dl-3-n-butylphthalide (Dl-NBP) is commonly used for cerebral ischemia treatment. In our study, we elucidated for new mechanisms by which Dl-NBP enhanced TrX activity, suppressed TXNIP, and ameliorated neuronal apoptosis in the APP/PS1 mouse brains. In human glioblastoma A172 cells and neuroblastoma SH-SY5Y cells, we delineated the Dl-NBP-mediated signaling pathways by which Dl-NBP-dependent upregulation of Nrf2 mediated the reciprocal regulation of reducing proinflammatory cytokine and inhibiting Aβ production in the glial and neuronal cells overexpressing APPswe. INNOVATION Our data provide a novel insight into the molecular mechanism that impairments of Nrf2-TXNIP-TrX system may be involved in the imbalance of cellular redox homeostasis and inflammatory damage in the AD brain. CONCLUSION Dl-NBP treatment could suppress TXNIP-NLRP3 interaction and inhibit NLRP3 inflammasome activation via upregulating Nrf2. These findings may provide an instrumental therapeutic approach for AD. Antioxid. Redox Signal. 00, 000-000.
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Affiliation(s)
- Chun-Yan Wang
- 1 Key Laboratory of Medical Cell Biology of Ministry of Education of China, Institute of Health Sciences, China Medical University, Shenyang, China.,2 Translational Medicine Laboratory, Basic College of Medicine, Jilin Medical University, Jilin, China
| | - Ye Xu
- 2 Translational Medicine Laboratory, Basic College of Medicine, Jilin Medical University, Jilin, China
| | - Xu Wang
- 3 Department of Histology and Embryology, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Chuang Guo
- 4 College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Tao Wang
- 4 College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Zhan-You Wang
- 1 Key Laboratory of Medical Cell Biology of Ministry of Education of China, Institute of Health Sciences, China Medical University, Shenyang, China
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24
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Fransen M, Lismont C. Redox Signaling from and to Peroxisomes: Progress, Challenges, and Prospects. Antioxid Redox Signal 2019; 30:95-112. [PMID: 29433327 DOI: 10.1089/ars.2018.7515] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Peroxisomes are organelles that are best known for their role in cellular lipid and hydrogen peroxide (H2O2) metabolism. Emerging evidence suggests that these organelles serve as guardians and modulators of cellular redox balance, and that alterations in their redox metabolism may contribute to aging and the development of chronic diseases such as neurodegeneration, diabetes, and cancer. Recent Advances: H2O2 is an important signaling messenger that controls many cellular processes by modulating protein activity through cysteine oxidation. Somewhat surprisingly, the potential involvement of peroxisomes in H2O2-mediated signaling processes has been overlooked for a long time. However, recent advances in the development of live-cell approaches to monitor and modulate spatiotemporal fluxes in redox species at the subcellular level have opened up new avenues for research in redox biology and boosted interest in the concept of peroxisomes as redox signaling platforms. CRITICAL ISSUES This review first introduces the reader to what is known about the role of peroxisomes in cellular H2O2 production and clearance, with a focus on mammalian cells. Next, it briefly describes the benefits and drawbacks of current strategies used to investigate the complex interplay between peroxisome metabolism and cellular redox state. Furthermore, it integrates and critically evaluates literature dealing with the interrelationship between peroxisomal redox metabolism, cell signaling, and human disease. FUTURE DIRECTIONS As the precise molecular mechanisms underlying many of these associations are still poorly understood, a key focus for future research should be the identification of primary targets for peroxisome-derived H2O2.
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Affiliation(s)
- Marc Fransen
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven , Leuven, Belgium
| | - Celien Lismont
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven , Leuven, Belgium
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25
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Parga JA, Rodriguez-Perez AI, Garcia-Garrote M, Rodriguez-Pallares J, Labandeira-Garcia JL. Angiotensin II induces oxidative stress and upregulates neuroprotective signaling from the NRF2 and KLF9 pathway in dopaminergic cells. Free Radic Biol Med 2018; 129:394-406. [PMID: 30315936 DOI: 10.1016/j.freeradbiomed.2018.10.409] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/30/2018] [Accepted: 10/05/2018] [Indexed: 12/19/2022]
Abstract
Nuclear factor-E2-related factor 2 (NRF2) is a transcription factor that activates the antioxidant cellular defense in response to oxidative stress, leading to neuroprotective effects in Parkinson's disease (PD) models. We have previously shown that Angiotensin II (AngII) induces an increase in reactive oxygen species (ROS) via AngII receptor type 1 and NADPH oxidase (NOX), which may activate the NRF2 pathway. However, controversial data suggest that AngII induces a decrease in NRF2 signaling leading to an increase in oxidative stress. We analyzed the effect of AngII and the dopaminergic neurotoxin 6-hydroxydopamine (6-OHDA) in culture and in vivo, and examined the effects on the expression of NRF2-related genes. Treatment of neuronal cell lines Mes23.5, N27 and SH-SY5Y with AngII, 6-OHDA or a combination of both increased ROS production and reduced cell viability. Simultaneously, these treatments induced an increase in expression in the NRF2-regulated genes heme oxygenase 1 (Hmox1), NAD(P)H quinone dehydrogenase 1 (Nqo1) and Kruppel like factor 9 (Klf9). Moreover, overexpression of KLF9 transcription factor caused a reduction in the production of ROS induced by treatment with AngII or 6-OHDA and improved the survival of these neuronal cells. Rats treated with AngII, 6-OHDA or a combination of both also showed an increased expression of NRF2 related genes and KLF9. In conclusion, our data indicate that AngII induces a damaging effect in neuronal cells, but also acts as a signaling molecule to activate NRF2 and KLF9 neuroprotective pathways in cellular and animal models of PD.
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Affiliation(s)
- Juan A Parga
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Ana I Rodriguez-Perez
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Maria Garcia-Garrote
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jannette Rodriguez-Pallares
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jose L Labandeira-Garcia
- Research Center for Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
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Hedgehog Interacting Protein Promotes Fibrosis and Apoptosis in Glomerular Endothelial Cells in Murine Diabetes. Sci Rep 2018; 8:5958. [PMID: 29654303 PMCID: PMC5899163 DOI: 10.1038/s41598-018-24220-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/28/2018] [Indexed: 12/14/2022] Open
Abstract
We investigated whether renal hedgehog interacting protein (Hhip) expression contributes to the progression of diabetic nephropathy (DN) and studied its related mechanism(s) in vivo and in vitro. Here, we show that Hhip expression is highly elevated in glomerular endothelial cells of adult type 1 diabetic (T1D) Akita and T2D db/db mouse kidneys as compared to non-diabetic control littermates. Hyperglycemia enhances reactive oxygen species (ROS) generation via NADPH oxidase 4 (Nox4) activation and stimulates renal Hhip gene expression, and that elevated renal Hhip gene expression subsequently activates the TGFβ1- Smad2/3 cascade and promotes endothelial to mesenchymal transition associated with endothelial cell fibrosis/apoptosis in vivo and in vitro. Furthermore, kidneys of low-dose streptozotocin-induced diabetic heterozygous Hhip deficient (Hhip+/−) mice displayed a normal albumin/creatinine ratio with fewer features of DN (glomerulosclerosis/fibrosis and podocyte apoptosis/loss) and less evidence of renal compensation (glomerular hypertrophy and hyperfiltration) as compared to diabetic wild type controls (Hhip+/+). Thus, our studies demonstrated that renal Hhip expression is associated with nephropathy development in diabetes and that hyperglycemia-induced renal Hhip expression may mediate glomerular endothelial fibrosis and apoptosis in diabetes, a novel finding.
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27
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Zhao S, Ghosh A, Lo CS, Chenier I, Scholey JW, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Nrf2 Deficiency Upregulates Intrarenal Angiotensin-Converting Enzyme-2 and Angiotensin 1-7 Receptor Expression and Attenuates Hypertension and Nephropathy in Diabetic Mice. Endocrinology 2018; 159:836-852. [PMID: 29211853 PMCID: PMC5774246 DOI: 10.1210/en.2017-00752] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/28/2017] [Indexed: 11/19/2022]
Abstract
We investigated the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in renin-angiotensin system (RAS) gene expression in renal proximal tubule cells (RPTCs) and in the development of systemic hypertension and kidney injury in diabetic Akita mice. We used adult male Akita Nrf2 knockout mice and Akita mice treated with trigonelline (an Nrf2 inhibitor) or oltipraz (an Nrf2 activator). We also examined rat immortalized RPTCs (IRPTCs) stably transfected with control plasmids or plasmids containing rat angiotensinogen (Agt), angiotensin-converting enzyme (ACE), angiotensin-converting enzyme-2 (Ace2), or angiotensin 1-7 (Ang 1-7) receptor (MasR) gene promoters. Genetic deletion of Nrf2 or pharmacological inhibition of Nrf2 in Akita mice attenuated hypertension, renal injury, tubulointerstitial fibrosis, and the urinary albumin/creatinine ratio. Furthermore, loss of Nrf2 upregulated RPTC Ace2 and MasR expression, increased urinary Ang 1-7 levels, and downregulated expression of Agt, ACE, and profibrotic genes in Akita mice. In cultured IRPTCs, Nrf2 small interfering RNA transfection or trigonelline treatment prevented high glucose stimulation of Nrf2 nuclear translocation, Agt, and ACE transcription with augmentation of Ace2 and MasR transcription, which was reversed by oltipraz. These data identify a mechanism, Nrf2-mediated stimulation of intrarenal RAS gene expression, by which chronic hyperglycemia induces hypertension and renal injury in diabetes.
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MESH Headings
- Angiotensin I/metabolism
- Angiotensin-Converting Enzyme 2
- Animals
- Cells, Cultured
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetic Nephropathies/genetics
- Diabetic Nephropathies/metabolism
- Diabetic Nephropathies/pathology
- Gene Expression Regulation, Enzymologic
- Hypertension/complications
- Hypertension/genetics
- Hypertension/metabolism
- Hypertension/pathology
- Kidney/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- NF-E2-Related Factor 2/genetics
- Peptide Fragments/metabolism
- Peptidyl-Dipeptidase A/genetics
- Peptidyl-Dipeptidase A/metabolism
- Rats
- Receptor, Angiotensin, Type 2/genetics
- Receptor, Angiotensin, Type 2/metabolism
- Renin-Angiotensin System/genetics
- Renin-Angiotensin System/physiology
- Up-Regulation/genetics
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Affiliation(s)
- Shuiling Zhao
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Anindya Ghosh
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Chao-Sheng Lo
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - Isabelle Chenier
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - James W. Scholey
- University Health Network-Toronto General Hospital and Department of Medicine, University of Toronto, Toronto, Ontario M5G 2C4, Canada
| | - Janos G. Filep
- Centre de Recherche, Hôpital Maisonneuve-Rosemont and Département de Pathologie et Biologie Cellulaire, Université de Montréal, Montréal, Quebec H1T 2M4, Canada
| | - Julie R. Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114-3117
| | - Shao-Ling Zhang
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
| | - John S. D. Chan
- Centre de Recherche, Centre Hospitalier de l’Université de Montréal and Département de Médecine, Université de Montréal, Montréal, Quebec H2X 0A9, Canada
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28
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Ishigaki S, Ohashi N, Matsuyama T, Isobe S, Tsuji N, Iwakura T, Fujikura T, Tsuji T, Kato A, Miyajima H, Yasuda H. Melatonin ameliorates intrarenal renin-angiotensin system in a 5/6 nephrectomy rat model. Clin Exp Nephrol 2017; 22:539-549. [PMID: 29159527 DOI: 10.1007/s10157-017-1505-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 11/06/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Activation of the intrarenal renin-angiotensin system (RAS) plays a critical role in the pathophysiology of chronic kidney disease (CKD) and hypertension. It has been reported that reactive oxygen species (ROS) are important components of intrarenal RAS activation. Melatonin is recognized as a powerful antioxidant, and we recently reported that impaired nighttime melatonin secretion correlates negatively with urinary angiotensinogen excretion, the surrogate marker of intrarenal RAS activity in patients with CKD. However, whether melatonin supplementation ameliorates the augmentation of intrarenal RAS in CKD has remained unknown. We aimed to clarify whether exogenous melatonin ameliorates intrarenal RAS activation via the reduction of ROS production. METHODS 5/6 Nephrectomized (Nx) rats were used as a chronic progressive CKD model and compared with sham-operated control rats. The Nx rats were divided into untreated Nx rats and melatonin-treated Nx rats. The levels of intrarenal RAS, ROS components, and renal injury were evaluated after 4 weeks of treatment. RESULTS Compared with the control rats, the untreated Nx rats exhibited significant increases in intrarenal angiotensinogen, angiotensin II (AngII) type 1 receptors, and AngII, accompanied by elevated blood pressure, higher oxidative stress (8-hydroxy-2'-deoxyguanosine), lower antioxidant (superoxide dismutase) activity, and increased markers of interstitial fibrosis (α-smooth muscle actin, Snail, and type I collagen) in the remnant kidneys. Treatment with melatonin significantly reversed these abnormalities. CONCLUSION Antioxidant treatment with melatonin was shown to ameliorate intrarenal RAS activation and renal injury in a 5/6 Nx rat model.
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Affiliation(s)
- Sayaka Ishigaki
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Naro Ohashi
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan.
| | - Takashi Matsuyama
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Shinsuke Isobe
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Naoko Tsuji
- Blood Purification Unit, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Takamasa Iwakura
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Tomoyuki Fujikura
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Takayuki Tsuji
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Akihiko Kato
- Blood Purification Unit, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Hiroaki Miyajima
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Hideo Yasuda
- Internal Medicine 1, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, 431-3192, Japan
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29
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Lo CS, Shi Y, Chenier I, Ghosh A, Wu CH, Cailhier JF, Ethier J, Lattouf JB, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Heterogeneous Nuclear Ribonucleoprotein F Stimulates Sirtuin-1 Gene Expression and Attenuates Nephropathy Progression in Diabetic Mice. Diabetes 2017; 66:1964-1978. [PMID: 28424160 PMCID: PMC5482081 DOI: 10.2337/db16-1588] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 04/10/2017] [Indexed: 12/19/2022]
Abstract
We investigated the mechanism of heterogeneous nuclear ribonucleoprotein F (hnRNP F) renoprotective action in a type 2 diabetes (T2D) mouse model (db/db). Immortalized rat renal proximal tubular cells (IRPTCs) and kidneys from humans with T2D were also studied. The db/db mice developed hyperglycemia, oxidative stress, and nephropathy at age 20 weeks compared with their db/m littermates. These abnormalities, with the exception of hyperglycemia, were attenuated in db/dbhnRNP F-transgenic (Tg) mice specifically overexpressing hnRNP F in their RPTCs. Sirtuin-1, Foxo3α, and catalase expression were significantly decreased in RPTCs from db/db mice and normalized in db/dbhnRNP F-Tg mice. In vitro, hnRNP F overexpression stimulated Sirtuin-1 and Foxo3α with downregulation of acetylated p53 expression and prevented downregulation of Sirtuin-1 and Foxo3α expression in IRPTCs by high glucose plus palmitate. Transfection of Sirtuin-1 small interfering RNA prevented hnRNP F stimulation of Foxo3α and downregulation of acetylated p53 expression. hnRNP F stimulated Sirtuin-1 transcription via hnRNP F-responsive element in the Sirtuin-1 promoter. Human T2D kidneys exhibited more RPTC apoptosis and lower expression of hnRNP F, SIRTUIN-1, and FOXO3α than nondiabetic kidneys. Our results demonstrate that hnRNP F protects kidneys against oxidative stress and nephropathy via stimulation of Sirtuin-1 expression and signaling in diabetes.
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MESH Headings
- Acetylation
- Aged
- Animals
- Apoptosis
- Blotting, Western
- Case-Control Studies
- Cells, Cultured
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetic Nephropathies/etiology
- Diabetic Nephropathies/genetics
- Diabetic Nephropathies/metabolism
- Disease Models, Animal
- Disease Progression
- Female
- Fibrosis
- Forkhead Box Protein O3
- Gene Expression Regulation/genetics
- Heterogeneous-Nuclear Ribonucleoprotein Group F-H/genetics
- Heterogeneous-Nuclear Ribonucleoprotein Group F-H/metabolism
- Humans
- Immunohistochemistry
- In Situ Nick-End Labeling
- In Vitro Techniques
- Kidney/metabolism
- Kidney/pathology
- Kidney Tubules, Proximal/metabolism
- Male
- Mice
- Mice, Knockout
- Mice, Transgenic
- Middle Aged
- Oxidative Stress
- Rats
- Real-Time Polymerase Chain Reaction
- Receptors, Leptin/genetics
- Sirtuin 1/genetics
- Sirtuin 1/metabolism
- Tumor Suppressor Protein p53/metabolism
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Affiliation(s)
- Chao-Sheng Lo
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Yixuan Shi
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Isabelle Chenier
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Anindya Ghosh
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Chin-Han Wu
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Jean-Francois Cailhier
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Jean Ethier
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Jean-Baptiste Lattouf
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - Janos G Filep
- Centre de recherche, Hôpital Maisonneuve-Rosemont and Department of Pathology and Cell Biology, Université de Montréal, Montreal, QC, Canada
| | - Julie R Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Shao-Ling Zhang
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
| | - John S D Chan
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, Montreal, QC, Canada
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30
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Ghosh A, Abdo S, Zhao S, Wu CH, Shi Y, Lo CS, Chenier I, Alquier T, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Insulin Inhibits Nrf2 Gene Expression via Heterogeneous Nuclear Ribonucleoprotein F/K in Diabetic Mice. Endocrinology 2017; 158:903-919. [PMID: 28324005 PMCID: PMC5460794 DOI: 10.1210/en.2016-1576] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 01/17/2017] [Indexed: 11/19/2022]
Abstract
Oxidative stress induces endogenous antioxidants via nuclear factor erythroid 2-related factor 2 (Nrf2), potentially preventing tissue injury. We investigated whether insulin affects renal Nrf2 expression in type 1 diabetes (T1D) and studied its underlying mechanism. Insulin normalized hyperglycemia, hypertension, oxidative stress, and renal injury; inhibited renal Nrf2 and angiotensinogen (Agt) gene expression; and upregulated heterogeneous nuclear ribonucleoprotein F and K (hnRNP F and hnRNP K) expression in Akita mice with T1D. In immortalized rat renal proximal tubular cells, insulin suppressed Nrf2 and Agt but stimulated hnRNP F and hnRNP K gene transcription in high glucose via p44/42 mitogen-activated protein kinase signaling. Transfection with small interfering RNAs of p44/42 MAPK, hnRNP F, or hnRNP K blocked insulin inhibition of Nrf2 gene transcription. Insulin curbed Nrf2 promoter activity via a specific DNA-responsive element that binds hnRNP F/K, and hnRNP F/K overexpression curtailed Nrf2 promoter activity. In hyperinsulinemic-euglycemic mice, renal Nrf2 and Agt expression was downregulated, whereas hnRNP F/K expression was upregulated. Thus, the beneficial actions of insulin in diabetic nephropathy appear to be mediated, in part, by suppressing renal Nrf2 and Agt gene transcription and preventing Nrf2 stimulation of Agt expression via hnRNP F/K. These findings identify hnRNP F/K and Nrf2 as potential therapeutic targets in diabetes.
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Affiliation(s)
- Anindya Ghosh
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Shaaban Abdo
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Shuiling Zhao
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Chin-Han Wu
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Yixuan Shi
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Chao-Sheng Lo
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Isabelle Chenier
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Thierry Alquier
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - Janos G Filep
- Department of Pathology and Cell Biology, Université de Montréal and Centre de recherche, Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada
| | - Julie R Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shao-Ling Zhang
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
| | - John S D Chan
- Department of Medicine, Université de Montréal and Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
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31
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Cui W, Min X, Xu X, Du B, Luo P. Role of Nuclear Factor Erythroid 2-Related Factor 2 in Diabetic Nephropathy. J Diabetes Res 2017; 2017:3797802. [PMID: 28512642 PMCID: PMC5420438 DOI: 10.1155/2017/3797802] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/09/2017] [Accepted: 03/13/2017] [Indexed: 12/30/2022] Open
Abstract
Diabetic nephropathy (DN) is manifested as increased urinary protein level, decreased glomerular filtration rate, and final renal dysfunction. DN is the leading cause of end-stage renal disease worldwide and causes a huge societal healthcare burden. Since satisfied treatments are still limited, exploring new strategies for the treatment of this disease is urgently needed. Oxidative stress takes part in the initiation and development of DN. In addition, nuclear factor erythroid 2-related factor 2 (Nrf2) plays a key role in the cellular response to oxidative stress. Thus, activation of Nrf2 seems to be a new choice for the treatment of DN. In current review, we discussed and summarized the therapeutic effects of Nrf2 activation on DN from both basic and clinical studies.
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Affiliation(s)
- Wenpeng Cui
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Xu Min
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Xiaohong Xu
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Bing Du
- Department of Cardiology, The First Hospital of Jilin University, Changchun, Jilin 130031, China
- *Bing Du: and
| | - Ping Luo
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
- *Ping Luo:
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32
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Abstract
SIGNIFICANCE Acute kidney injury (AKI) and chronic kidney disease (CKD) represent a considerable burden in healthcare. The heme oxygenase (HO) system plays an important role in regulating oxidative stress and is protective in a variety of human and animal models of kidney disease. Preclinical studies of the HO system have led to the development of several clinical trials targeting the enzyme or its products. RECENT ADVANCES Connection of HO, ferritin, and other proteins involved in iron regulation has provided important insight into mechanisms of damage in AKI. Also, HO-1 expression is important in the pathogenesis of hypertension, diabetic kidney disease, and progression to end-stage renal disease. CRITICAL ISSUES Despite intriguing discoveries, no drugs targeting the HO system have been translated to the clinic. Meanwhile, treatments for AKI and CKD are urgently needed. Many factors have likely contributed to challenges in clinical translation, including variation in animal models, difficulties in obtaining human tissue, and complexity of the disease processes being studied. FUTURE DIRECTIONS The HO system represents a promising avenue of investigation that may lead to targeted therapeutics. Tissue-specific gene modulation, widening the scope of animal studies, and continued clinical research will provide valuable insight into the role HO plays in kidney homeostasis and disease. Antioxid. Redox Signal. 25, 165-183.
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Affiliation(s)
- Jeremie M Lever
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama
| | - Ravindra Boddu
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama
| | - James F George
- 2 Division of Cardiothoracic Surgery, Department of Surgery, The University of Alabama at Birmingham , Birmingham, Alabama
| | - Anupam Agarwal
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama.,3 Birmingham Veterans Administration Medical Center , Birmingham, Alabama
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33
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Chang KC, Li L, Sanborn TM, Shieh B, Lenhart P, Ammar D, LaBarbera DV, Petrash JM. Characterization of Emodin as a Therapeutic Agent for Diabetic Cataract. JOURNAL OF NATURAL PRODUCTS 2016; 79:1439-44. [PMID: 27140653 PMCID: PMC5578730 DOI: 10.1021/acs.jnatprod.6b00185] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Aldose reductase (AR) in the lens plays an important role in the pathogenesis of diabetic cataract (DC) by contributing to osmotic and oxidative stress associated with accelerated glucose metabolism through the polyol pathway. Therefore, inhibition of AR in the lens may hold the key to prevent DC formation. Emodin, a bioactive compound isolated from plants, has been implicated as a therapy for diabetes. However, its inhibitory activity against AR remains unclear. Our results showed that emodin has good selectively inhibitory activity against AR (IC50 = 2.69 ± 0.90 μM) but not other aldo-keto reductases and is stable at 37 °C for at least 7 days. Enzyme kinetic studies demonstrated an uncompetitive inhibition against AR with a corresponding inhibition constant of 2.113 ± 0.095 μM. In in vivo studies, oral administration of emodin reduced the incidence and severity of morphological markers of cataract in lenses of AR transgenic mice. Computational modeling of the AR-NADP(+)-emodin ternary complex indicated that the 3-hydroxy group of emodin plays an essential role by interacting with Ser302 through hydrogen bonding in the specificity pocket of AR. All the findings above provide encouraging evidence for emodin as a potential therapeutic agent to prevent cataract in diabetic patients.
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Affiliation(s)
- Kun-Che Chang
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Linfeng Li
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Theresa M. Sanborn
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Biehuoy Shieh
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Patricia Lenhart
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - David Ammar
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Daniel V. LaBarbera
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - J. Mark Petrash
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, Colorado 80045, United States
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34
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Effects of Trigonelline, an Alkaloid Present in Coffee, on Diabetes-Induced Disorders in the Rat Skeletal System. Nutrients 2016; 8:133. [PMID: 26950142 PMCID: PMC4808862 DOI: 10.3390/nu8030133] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/11/2016] [Accepted: 02/23/2016] [Indexed: 12/11/2022] Open
Abstract
Diabetes increases bone fracture risk. Trigonelline, an alkaloid with potential antidiabetic activity, is present in considerable amounts in coffee. The aim of the study was to investigate the effects of trigonelline on experimental diabetes-induced disorders in the rat skeletal system. Effects of trigonelline (50 mg/kg p.o. daily for four weeks) were investigated in three-month-old female Wistar rats, which, two weeks before the start of trigonelline administration, received streptozotocin (60 mg/kg i.p.) or streptozotocin after nicotinamide (230 mg/kg i.p.). Serum bone turnover markers, bone mineralization, and mechanical properties were studied. Streptozotocin induced diabetes, with significant worsening of bone mineralization and bone mechanical properties. Streptozotocin after nicotinamide induced slight glycemia increases in first days of experiment only, however worsening of cancellous bone mechanical properties and decreased vertebral bone mineral density (BMD) were demonstrated. Trigonelline decreased bone mineralization and tended to worsen bone mechanical properties in streptozotocin-induced diabetic rats. In nicotinamide/streptozotocin-treated rats, trigonelline significantly increased BMD and tended to improve cancellous bone strength. Trigonelline differentially affected the skeletal system of rats with streptozotocin-induced metabolic disorders, intensifying the osteoporotic changes in streptozotocin-treated rats and favorably affecting bones in the non-hyperglycemic (nicotinamide/streptozotocin-treated) rats. The results indicate that, in certain conditions, trigonelline may damage bone.
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Wang F, Ma J, Han F, Guo X, Meng L, Sun Y, Jin C, Duan H, Li H, Peng Y. DL-3-n-butylphthalide delays the onset and progression of diabetic cataract by inhibiting oxidative stress in rat diabetic model. Sci Rep 2016; 6:19396. [PMID: 26759189 PMCID: PMC4725374 DOI: 10.1038/srep19396] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 12/07/2015] [Indexed: 11/15/2022] Open
Abstract
DL-3-n-butylphthalide (NBP) is a therapeutic drug used for ischemic stroke treatment. Here, we investigated the impact of NBP on the development of rat diabetic cataract induced by intraperitoneal injection of streptozotocin (STZ). NBP was then administrated by oral gavage for nine weeks. Cataract development was monitored through ophthalmoscope inspections. The levels of blood glucose and serum reactive oxygen species (ROS), malondialdehyde (MDA) and 8-Hydroxydeovexyguanosine (8-OHdG) were measured. Total and soluble protein and oxidative stress parameters, such as 2, 4- dinitrophenylhydrazone (DNP), 4-hydroxynonenal (4-HNE) and MDA in the lenses were determined by Western blot and thiobarbituric acid analyses. The expressions of NF-E2-related factor 2 (Nrf2) and its downstream antioxidant enzymes, thioredoxin (TRX), Catalase and nuclear accumulation of Nrf2 were determined by Western blot and immunohistochemistry analyses. We showed that NBP treatment significantly improved the cataract scores, the levels of DNP, 4-HNE, and MDA in the lens compared to the non-treated groups. NBP also enhanced the expressions of Nrf2, TRX and catalase in the lens of diabetic rats. In addition, NBP treatment also decreased levels of blood glucose, serum MDA and 8-OHdG. These results suggested that NBP treatment significantly delayed the onset and progression of diabetic cataract by inhibiting the oxidative stresses.
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Affiliation(s)
- Fuxu Wang
- Department of Hematology, the Second Hospital of Hebei Medical University, 215 Western Heping Road, Shijiazhuang 050000, China
| | - Jia Ma
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, 215 Western Heping Road, Shijiazhuang 050000, China
| | - Fei Han
- Department of Digestology, the Second Hospital of Hebei Medical University, 215 Western Heping Road, Shijiazhuang 050000, China
| | - Xiujin Guo
- Department of Ophthalmology, the Second Hospital of Hebei Medical University, 215 Western Heping Road, Shijiazhuang 050000, China
| | - Li Meng
- Laboratorical center for Electron Microscopy, Hebei Medical University, 361 Eastern Zhongshan Road, Shijiazhuang 050017, China
| | - Yufeng Sun
- Department of Digestology, the Second Hospital of Hebei Medical University, 215 Western Heping Road, Shijiazhuang 050000, China
| | - Cheng Jin
- Department of Histology and Embryology, Hebei Medical University, 361 Eastern Zhongshan Road, Shijiazhuang 050017, China
| | - Huijun Duan
- Department of Pathology, Hebei Medical University, 361 Eastern Zhongshan Road, Shijiazhuang 050017, China
| | - Hang Li
- Department of Histology and Embryology, Hebei Medical University, 361 Eastern Zhongshan Road, Shijiazhuang 050017, China.,Department of Pathology, Hebei Medical University, 361 Eastern Zhongshan Road, Shijiazhuang 050017, China
| | - Ying Peng
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences &Peking Union Medical College, Beijing 100050, China
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Qin Q, Qu C, Niu T, Zang H, Qi L, Lyu L, Wang X, Nagarkatti M, Nagarkatti P, Janicki JS, Wang XL, Cui T. Nrf2-Mediated Cardiac Maladaptive Remodeling and Dysfunction in a Setting of Autophagy Insufficiency. Hypertension 2015; 67:107-17. [PMID: 26573705 DOI: 10.1161/hypertensionaha.115.06062] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/27/2015] [Indexed: 12/27/2022]
Abstract
Nuclear factor erythroid-2-related factor 2 (Nrf2) appears to exert either a protective or detrimental effect on the heart; however, the underlying mechanism remains poorly understood. Herein, we uncovered a novel mechanism for turning off the Nrf2-mediated cardioprotection and switching on Nrf2-mediated cardiac dysfunction. In a murine model of pressure overload-induced cardiac remodeling and dysfunction via transverse aortic arch constriction, knockout of Nrf2 enhanced myocardial necrosis and death rate during an initial stage of cardiac adaptation when myocardial autophagy function is intact. However, knockout of Nrf2 turned out to be cardioprotective throughout the later stage of cardiac maladaptive remodeling when myocardial autophagy function became insufficient. Transverse aortic arch constriction -induced activation of Nrf2 was dramatically enhanced in the heart with impaired autophagy, which is induced by cardiomyocyte-specific knockout of autophagy-related gene (Atg)5. Notably, Nrf2 activation coincided with the upregulation of angiotensinogen (Agt) only in the autophagy-impaired heart after transverse aortic arch constriction. Agt5 and Nrf2 gene loss-of-function approaches in combination with Jak2 and Fyn kinase inhibitors revealed that suppression of autophagy inactivated Jak2 and Fyn and nuclear translocation of Fyn, while enhancing nuclear translocation of Nrf2 and Nrf2-driven Agt expression in cardiomyocytes. Taken together, these results indicate that the pathophysiological consequences of Nrf2 activation are closely linked with the functional integrity of myocardial autophagy during cardiac remodeling. When autophagy is intact, Nrf2 is required for cardiac adaptive responses; however, autophagy impairment most likely turns off Fyn-operated Nrf2 nuclear export thus activating Nrf2-driven Agt transcription, which exacerbates cardiac maladaptation leading to dysfunction.
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Affiliation(s)
- Qingyun Qin
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Chen Qu
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Ting Niu
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Huimei Zang
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Lei Qi
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Linmao Lyu
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Xuejun Wang
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Mitzi Nagarkatti
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Prakash Nagarkatti
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Joseph S Janicki
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia
| | - Xing Li Wang
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia.
| | - Taixing Cui
- From the Key Laboratory of Cardiovascular Remodeling and Function Research, Shandong University Qilu Hospital Research Center for Cell Therapy, Qilu Hospital of Shandong University, Shandong University School of Medicine, Jinan, Shandong, China (Q.Q., C.Q., T.N., H.Z., L.Q., L.L., X.L.W., T.C.); Division of Basic Biomedical Science, Sanford School of Medicine, University of South Dakota, Vermillion (X.W.); and Department of Pathology, Microbiology and Immunology (M.N., P.N.) and Department of Cell Biology and Anatomy (J.S.J., T.C.), University of South Carolina School of Medicine, Columbia.
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Cong W, Ruan D, Xuan Y, Niu C, Tao Y, Wang Y, Zhan K, Cai L, Jin L, Tan Y. Cardiac-specific overexpression of catalase prevents diabetes-induced pathological changes by inhibiting NF-κB signaling activation in the heart. J Mol Cell Cardiol 2015; 89:314-25. [PMID: 26456065 DOI: 10.1016/j.yjmcc.2015.10.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 09/14/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022]
Abstract
Catalase is an antioxidant enzyme that specifically catabolizes hydrogen peroxide (H2O2). Overexpression of catalase via a heart-specific promoter (CAT-TG) was reported to reduce diabetes-induced accumulation of reactive oxygen species (ROS) and further prevent diabetes-induced pathological abnormalities, including cardiac structural derangement and left ventricular abnormity in mice. However, the mechanism by which catalase overexpression protects heart function remains unclear. This study found that activation of a ROS-dependent NF-κB signaling pathway was downregulated in hearts of diabetic mice overexpressing catalase. In addition, catalase overexpression inhibited the significant increase in nitration levels of key enzymes involved in energy metabolism, including α-oxoglutarate dehydrogenase E1 component (α-KGD) and ATP synthase α and β subunits (ATP-α and ATP-β). To assess the effects of the NF-κB pathway activation on heart function, Bay11-7082, an inhibitor of the NF-κB signaling pathway, was injected into diabetic mice, protecting mice against the development of cardiac damage and increased nitrative modifications of key enzymes involved in energy metabolism. In conclusion, these findings demonstrated that catalase protects mouse hearts against diabetic cardiomyopathy, partially by suppressing NF-κB-dependent inflammatory responses and associated protein nitration.
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Affiliation(s)
- Weitao Cong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Dandan Ruan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; The Health Examination Center, the 117th Hospital of Chinese People's Liberation Army, Hangzhou 310013, PR China
| | - Yuanhu Xuan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Chao Niu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Youli Tao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Yang Wang
- Department of Histology and Embryology, Institute of Neuroscience, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Kungao Zhan
- The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, PR China
| | - Lu Cai
- The First Hospital of Jilin University, Changchun 130021, PR China
| | - Litai Jin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China.
| | - Yi Tan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China.
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Abdo S, Zhang SL, Chan JSD. Reactive Oxygen Species and Nuclear Factor Erythroid 2-Related Factor 2 Activation in Diabetic Nephropathy: A Hidden Target. ACTA ACUST UNITED AC 2015. [PMID: 26213634 PMCID: PMC4511631 DOI: 10.4172/2155-6156.1000547] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Hyperglycemia, oxidative stress and renin-angiotensin system (RAS) dysfunction have been implicated in diabetic nephropathy (DN) progression, but the underlying molecular mechanisms are far from being fully understood. In addition to the systemic RAS, the existence of a local intrarenal RAS in renal proximal tubular cells has been recognized. Angiotensinogen is the sole precursor of all angiotensins (Ang). Intrarenal reactive oxygen species (ROS) generation, Ang II level and RAS gene expression are up-regulated in diabetes, indicating that intrarenal ROS and RAS activation play an important role in DN. The nuclear factor erythroid 2-related factor 2 (Nrf2)-Kelch-like ECH-associated protein 1 (Keap1) pathway is one of the major protective processes that occurs in response to intracellular oxidative stress. Nrf2 stimulates an array of antioxidant enzymes that convert excessive ROS to less reactive or less damaging forms. Recent studies have, however, revealed that Nrf2 activation might have other undesirable effects in diabetic animals and in diabetic patients with chronic kidney disease. This mini-review summarizes current knowledge of the relationship between ROS, Nrf2 and intra renal RAS activation in DN progression as well as possible novel target(s) for DN treatment.
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Affiliation(s)
- Shaaban Abdo
- Department of Medicine, University of Montreal and Research Center Hospital of QC, Canada
| | - Shao-Ling Zhang
- Department of Medicine, University of Montreal and Research Center Hospital of QC, Canada
| | - John S D Chan
- Department of Medicine, University of Montreal and Research Center Hospital of QC, Canada
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Chang KC, Snow A, LaBarbera DV, Petrash JM. Aldose reductase inhibition alleviates hyperglycemic effects on human retinal pigment epithelial cells. Chem Biol Interact 2014; 234:254-60. [PMID: 25451566 DOI: 10.1016/j.cbi.2014.10.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/02/2014] [Accepted: 10/08/2014] [Indexed: 12/11/2022]
Abstract
Chronic hyperglycemia is an important risk factor involved in the onset and progression of diabetic retinopathy (DR). Among other effectors, aldose reductase (AR) has been linked to the pathogenesis of this degenerative disease. The purpose of this study was to investigate whether the novel AR inhibitor, beta-glucogallin (BGG), can offer protection against various hyperglycemia-induced abnormalities in human adult retinal pigment epithelial (ARPE-19) cells. AR is an enzyme that contributes to cellular stress by production of reactive oxygen species (ROS) under high glucose conditions. A marked decrease in cell viability (from 100% to 78%) following long-term exposure (4 days) of RPE cells to high glucose (HG) was largely prevented by siRNA-mediated knockdown of AR gene expression (from 79% to 97%) or inhibition using sorbinil (from 66% to 86%). In HG, BGG decreased sorbitol accumulation (44%), ROS production (27%) as well as ER stress (22%). Additionally, we demonstrated that BGG prevented loss of mitochondrial membrane potential (MMP) under HG exposure. We also showed that AR inhibitor pretreatment reduced retinal microglia-induced apoptosis in APRE-19 cells. These results suggest that BGG may be useful as a therapeutic agent against retinal degeneration in the diabetic eye by preventing RPE cell death.
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Affiliation(s)
- Kun-Che Chang
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Anson Snow
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Daniel V LaBarbera
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - J Mark Petrash
- Department of Ophthalmology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA.
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Taranu I, Gras M, Pistol GC, Motiu M, Marin DE, Lefter N, Ropota M, Habeanu M. ω-3 PUFA rich camelina oil by-products improve the systemic metabolism and spleen cell functions in fattening pigs. PLoS One 2014; 9:e110186. [PMID: 25303320 PMCID: PMC4193896 DOI: 10.1371/journal.pone.0110186] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 09/08/2014] [Indexed: 12/31/2022] Open
Abstract
Camelina oil-cakes results after the extraction of oil from Camelina sativa plant. In this study, camelina oil-cakes were fed to fattening pigs for 33 days and its effect on performance, plasma biochemical analytes, pro-/anti-inflammatory mediators and antioxidant detoxifying defence in spleen was investigated in comparison with sunflower meal. 24 crossbred TOPIG pigs were randomly assigned to one of two experimental dietary treatments containing either 12% sunflower meal (treatment 1-T1), or 12.0% camelina oil-cakes, rich in polyunsaturated fatty acids ω-3 (ω-3 PUFA) (treatment 2-T2). The results showed no effect of T2 diet (camelina cakes) on feed intake, average weight gain or feed efficiency. Consumption of camelina diet resulted in a significant decrease in plasma glucose concentration (18.47%) with a trend towards also a decrease of plasma cholesterol. In spleen, T2 diet modulated cellular immune response by decreasing the protein and gene expression of pro-inflammatory markers, interleukin 1-beta (IL-1β), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6) and interleukin (IL-8) and cyclooxigenase 2 (COX-2) in comparison with T1 diet. By contrast, T2 diet increased (P<0.05) in spleen the mRNA expression of antioxidant enzymes, catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase 1 (GPx1) by 3.43, 2.47 and 1.83 fold change respectively, inducible nitric oxide synthase (iNOS) (4.60 fold), endothelial nitric oxide synthase (eNOS) (3.23 fold) and the total antioxidant level (9.02%) in plasma. Camelina diet increased also peroxisome-proliferator activated receptor gamma (PPAR-γ) mRNA and decreased that of mitogen-activated protein kinase 14 (p38α MAPK) and nuclear factor of kappa light polypeptide gene enhancer in B-cells (NF-κB). At this level of inclusion (12%) camelina oil-cakes appears to be a potentially alternative feed source for pig which preserves a high content of ω-3 PUFA indicating antioxidant properties by the stimulation of detoxifying enzymes expression and the suppression of spleen pro-inflammatory markers.
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Affiliation(s)
- Ionelia Taranu
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Mihail Gras
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Gina Cecilia Pistol
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Monica Motiu
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Daniela E. Marin
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Nicoleta Lefter
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Mariana Ropota
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
| | - Mihaela Habeanu
- INCDBNA-IBNA, National Institute of Research and development for Biology and Animal Nutrition, Balotesti, Romania
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