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Wen M, Sun X, Pan L, Jing S, Zhang X, Liang L, Xiao H, Liu P, Xu Z, Zhang Q, Huang H. Dihydromyricetin ameliorates diabetic renal fibrosis via regulating SphK1 to suppress the activation of NF-κB pathway. Eur J Pharmacol 2024; 978:176799. [PMID: 38945289 DOI: 10.1016/j.ejphar.2024.176799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/19/2024] [Accepted: 06/28/2024] [Indexed: 07/02/2024]
Abstract
Dihydromyricetin (DHM) is a flavonoid from vine tea with broad pharmacological benefits, which improve inflammation by blocking the NF-κB pathway. A growing body of research indicates that chronic kidney inflammation is vital to the pathogenesis of diabetic renal fibrosis. Sphingosine kinase-1 (SphK1) is a key regulator of diabetic renal inflammation, which triggers the NF-κB pathway. Hence, we evaluated whether DHM regulates diabetic renal inflammatory fibrosis by acting on SphK1. Here, we demonstrated that DHM effectively suppressed the synthesis of fibrotic and inflammatory adhesion factors like ICAM-1, and VCAM-1 in streptozotocin-treated high-fat diet-induced diabetic mice and HG-induced glomerular mesangial cells (GMCs). Moreover, DHM significantly suppressed NF-κB pathway activation and reduced SphK1 activity and protein expression under diabetic conditions. Mechanistically, the results of molecular docking, molecular dynamics simulation, and cellular thermal shift assay revealed that DHM stably bound to the binding pocket of SphK1, thereby reducing sphingosine-1-phosphate content and SphK1 enzymatic activity, which ultimately inhibited NF-κB DNA binding, transcriptional activity, and nuclear translocation. In conclusion, our data suggested that DHM inhibited SphK1 phosphorylation to prevent NF-κB activation thus ameliorating diabetic renal fibrosis. This supported the clinical use and further drug development of DHM as a potential candidate for treating diabetic renal fibrosis.
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Affiliation(s)
- Min Wen
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou, 510801, China
| | - Xiaohong Sun
- Department of Pharmacy, Shenzhen Children's Hospital, Shenzhen, 518026, China
| | - Linjie Pan
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Shujin Jing
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xuting Zhang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Liyin Liang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Haiming Xiao
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Peiqing Liu
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhanchi Xu
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Qun Zhang
- Good Clinical Practice Development, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China.
| | - Heqing Huang
- Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou, 510801, China.
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2
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Jones BA, Myakala K, Guha M, Davidson S, Adapa S, Lopez Santiago I, Schaffer I, Yue Y, Allegood JC, Cowart LA, Wang XX, Rosenberg AZ, Levi M. Farnesoid X receptor prevents neutrophil extracellular traps via reduced sphingosine-1-phosphate in chronic kidney disease. Am J Physiol Renal Physiol 2023; 325:F792-F810. [PMID: 37823198 PMCID: PMC10894665 DOI: 10.1152/ajprenal.00292.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/13/2023] Open
Abstract
Farnesoid X receptor (FXR) activation reduces renal inflammation, but the underlying mechanisms remain elusive. Neutrophil extracellular traps (NETs) are webs of DNA formed when neutrophils undergo specialized programmed cell death (NETosis). The signaling lipid sphingosine-1-phosphate (S1P) stimulates NETosis via its receptor on neutrophils. Here, we identify FXR as a negative regulator of NETosis via repressing S1P signaling. We determined the effects of the FXR agonist obeticholic acid (OCA) in mouse models of adenosine phosphoribosyltransferase (APRT) deficiency and Alport syndrome, both genetic disorders that cause chronic kidney disease. Renal FXR activity is greatly reduced in both models, and FXR agonism reduces disease severity. Renal NETosis and sphingosine kinase 1 (Sphk1) expression are increased in diseased mice, and they are reduced by OCA in both models. Genetic deletion of FXR increases Sphk1 expression, and Sphk1 expression correlates with NETosis. Importantly, kidney S1P levels in Alport mice are two-fold higher than controls, and FXR agonism restores them back to baseline. Short-term inhibition of sphingosine synthesis in Alport mice with severe kidney disease reverses NETosis, establishing a causal relationship between S1P signaling and renal NETosis. Finally, extensive NETosis is present in human Alport kidney biopsies (six male, nine female), and NETosis severity correlates with clinical markers of kidney disease. This suggests the potential clinical relevance of the newly identified FXR-S1P-NETosis pathway. In summary, FXR agonism represses kidney Sphk1 expression. This inhibits renal S1P signaling, thereby reducing neutrophilic inflammation and NETosis.NEW & NOTEWORTHY Many preclinical studies have shown that the farnesoid X receptor (FXR) reduces renal inflammation, but the mechanism is poorly understood. This report identifies FXR as a novel regulator of neutrophilic inflammation and NETosis via the inhibition of sphingosine-1-phosphate signaling. Additionally, NETosis severity in human Alport kidney biopsies correlates with clinical markers of kidney disease. A better understanding of this signaling axis may lead to novel treatments that prevent renal inflammation and chronic kidney disease.
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Affiliation(s)
- Bryce A Jones
- Department of Pharmacology and Physiology, Georgetown University, Washington, District of Columbia, United States
| | - Komuraiah Myakala
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Mahilan Guha
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Shania Davidson
- Department of Biology, Howard University, Washington, District of Columbia, United States
| | - Sharmila Adapa
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Isabel Lopez Santiago
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Isabel Schaffer
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Yang Yue
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia, United States
| | - Jeremy C Allegood
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia, United States
| | - L Ashley Cowart
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia, United States
| | - Xiaoxin X Wang
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
| | - Avi Z Rosenberg
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States
| | - Moshe Levi
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, District of Columbia, United States
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3
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Franco M, Cano-Martínez A, Ramos-Godínez MDP, López-Marure R, Donis-Maturano L, Sosa JS, Bautista-Pérez R. Immunolocalization of Sphingolipid Catabolism Enzymes along the Nephron: Novel Early Urinary Biomarkers of Renal Damage. Int J Mol Sci 2023; 24:16633. [PMID: 38068956 PMCID: PMC10706607 DOI: 10.3390/ijms242316633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
The objective of this study was to investigate whether the activity of enzymes involved in sphingolipid catabolism could be biomarkers to predict early renal damage in streptozotocin (STZ)-induced diabetic rats and Angiotensin II (Ang II)-induced hypertension rats. Diabetic and hypertensive rats had no changes in plasma creatinine concentration. However, transmission electron microscopy (TEM) analysis showed slight ultrastructural changes in the glomeruli and tubular epithelial cells from diabetic and hypertensive rats. Our results show that the acid sphingomyelinase (aSMase) and neutral sphingomyelinase (nSMase) activity increased in the urine of diabetic rats and decreased in hypertensive rats. Only neutral ceramidase (nCDase) activity increased in the urine of diabetic rats. Furthermore, the immunofluorescence demonstrated positive staining for the nSMase, nCDase, and sphingosine kinase (SphK1) in glomerular mesangial cells, proximal tubule, ascending thin limb of the loop of Henle, thick ascending limb of Henle's loop, and principal cells of the collecting duct in the kidney. In conclusion, our results suggest that aSMase and nCDase activity in urine could be a novel predictor of early slight ultrastructural changes in the nephron, aSMase and nCDase as glomerular injury biomarkers, and nSMase as a tubular injury biomarker in diabetic and hypertensive rats.
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Affiliation(s)
- Martha Franco
- Department of Cardio-Renal Pathophysiology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico; (M.F.)
| | - Agustina Cano-Martínez
- Department of Physiology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico; (A.C.-M.); (R.L.-M.)
| | | | - Rebeca López-Marure
- Department of Physiology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico; (A.C.-M.); (R.L.-M.)
| | - Luis Donis-Maturano
- Faculty of Higher Studies Iztacala, Universidad Nacional Autónoma de México, Mexico City 54090, Mexico;
| | - José Santamaría Sosa
- Department of Cardio-Renal Pathophysiology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico; (M.F.)
| | - Rocio Bautista-Pérez
- Department of Molecular Biology, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico
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4
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Njeim R, Alkhansa S, Fornoni A. Unraveling the Crosstalk between Lipids and NADPH Oxidases in Diabetic Kidney Disease. Pharmaceutics 2023; 15:pharmaceutics15051360. [PMID: 37242602 DOI: 10.3390/pharmaceutics15051360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic kidney disease (DKD) is a serious complication of diabetes mellitus and a leading cause of end-stage renal disease. Abnormal lipid metabolism and intrarenal accumulation of lipids have been shown to be strongly correlated with the development and progression of diabetic kidney disease (DKD). Cholesterol, phospholipids, triglycerides, fatty acids, and sphingolipids are among the lipids that are altered in DKD, and their renal accumulation has been linked to the pathogenesis of the disease. In addition, NADPH oxidase-induced production of reactive oxygen species (ROS) plays a critical role in the development of DKD. Several types of lipids have been found to be tightly linked to NADPH oxidase-induced ROS production. This review aims to explore the interplay between lipids and NADPH oxidases in order to provide new insights into the pathogenesis of DKD and identify more effective targeted therapies for the disease.
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Affiliation(s)
- Rachel Njeim
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Sahar Alkhansa
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
- AUB Diabetes, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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5
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Nicholas SE, Choi AJ, Lam TN, Basu SK, Mandal N, Karamichos D. Potentiation of Sphingolipids and TGF-β in the human corneal stroma reveals intricate signaling pathway crosstalks. Exp Eye Res 2023; 231:109487. [PMID: 37084874 DOI: 10.1016/j.exer.2023.109487] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/11/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023]
Abstract
Corneal haze brought on by fibrosis due to insult can lead to partial or complete vision loss. Currently, corneal transplantation is the gold standard for treating severe corneal fibrosis, which comes with the risk of rejection and the issue of donor tissue shortages. Sphingolipids (SPLs) are known to be associated with fibrosis in various tissues and organs, including the cornea. We previously reported that SPLs are tightly related to Transforming Growth Factor β (TGF-β) signaling and corneal fibrogenesis. This study aimed to elucidate the interplay of SPLs, specifically sphingosine-1-phosphate (S1P) signaling, and its' interactions with TGF-β signaling through detailed analyses of the corresponding downstream signaling targets in the context of corneal fibrosis, in vitro. Healthy human corneal fibroblasts (HCFs) were isolated, plated on polycarbonate membranes, and stimulated with a stable Vitamin C derivative. The 3D constructs were treated with either 5 μM sphingosine-1-phosphate (S1P), 5 μM SPHK I2 (I2; inhibitor of sphingosine kinase 1, one of the two enzymes responsible for generating S1P in mammalian cells), 0.1 ng/mL TGF-β1, or 0.1 ng/mL TGF-β3. Cultures with control medium-only served as controls. All 3D constructs were examined for protein expression of fibrotic markers, SPLs, TGF-βs, and relevant downstream signaling pathways. This data revealed no significant changes in any LTBP (latent TGF-β binding proteins) expression when stimulated with S1P or I2. However, LTBP1 was significantly upregulated via stimulation of TGF-β1 and TGF-β3, whereas LTBP2 was significantly upregulated only with TGF-β3 stimulation. Significant downregulation of TGF-β receptor II (TGF-βRII) following S1P stimulation but significant upregulation following I2 stimulation was observed. Following TGF-β1, S1P, and I2 stimulation, phospho-SMAD2 (pSMAD2) was significantly downregulated. Furthermore, I2 stimulation led to significant downregulation of SMAD4. Adhesion/proliferation/transcription regulation targets, SRC, FAK, and pERK 1/2 were all significantly downregulated by exogenous S1P, whereas I2 only significantly downregulated FAK. Exogenous TGF-β3 caused significant upregulation of AKT. Interestingly, both I2 and TGF-β3 caused significant downregulation of JNK expression. Lastly, TGF-β1 led to significant upregulation of sphingosine kinase 1 (SphK1) and sphingosine-1-phosphate receptor 3 (S1PR3), whereas TGF-β3 caused significant upregulation of only SphK1. Together with previously published work from our group and others, S1P inhibition exhibits great potential as an efficacious anti-fibrotic modality in human corneal stromal ECM. The current findings shed further light on a very complex and rather incompletely investigated mechanism, and cement the intricate crosstalk between SPLs and TGF-β in corneal fibrogenesis. Future studies will dictate the potential of utilizing SPLs/TGF-β signaling modulators as novel therapeutics in corneal fibrosis.
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Affiliation(s)
- Sarah E Nicholas
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, 76107, USA; Department of Pharmaceutical Sciences, University of North Texas HSC, Fort Worth, TX, 76107, USA
| | - Alexander J Choi
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, 76107, USA; Department of Pharmaceutical Sciences, University of North Texas HSC, Fort Worth, TX, 76107, USA
| | - Thi N Lam
- Department of Ophthalmology/Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Sandip K Basu
- Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Nawajes Mandal
- Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA; Department of Anatomy and Neurobiology, University of Tennessee HSC, Memphis, TN, 38163, USA
| | - Dimitrios Karamichos
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, 76107, USA; Department of Pharmaceutical Sciences, University of North Texas HSC, Fort Worth, TX, 76107, USA; Department of Pharmacology and Neuroscience, University of North Texas HSC, Fort Worth, TX, 76107, USA.
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6
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Zhang YZ, Fan ML, Zhang WZ, Liu W, Li HP, Ren S, Jiang S, Song MJ, Wang Z, Li W. Schisandrin ameliorates diabetic nephropathy via regulating of PI3K/Akt/NF-κB-mediated inflammation and TGF-β1-induced fibrosis in HFD/STZ-induced C57BL/6J mice. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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7
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Pan Y, Yang H, Chen T, Jin J, Ruan L, Hu L, Chen L. Extracellular vesicles metabolic changes reveals plasma signature in stage-dependent diabetic kidney disease. Ren Fail 2022; 44:1840-1849. [DOI: 10.1080/0886022x.2022.2118067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Youjin Pan
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Endocrinology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Qingdao, China
- Jinan Clinical Research Center for Endocrine and Metabolic Diseases, Jinan City, P. R. China
| | - Hui Yang
- Department of Ophthalmology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tucan Chen
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Jian Jin
- Department of Endocrinology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Luya Ruan
- Department of Endocrinology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liang Hu
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Li Chen
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
- Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Qingdao, China
- Jinan Clinical Research Center for Endocrine and Metabolic Diseases, Jinan City, P. R. China
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Anan G, Hirose T, Kikuchi D, Takahashi C, Endo A, Ito H, Sato S, Nakayama S, Hashimoto H, Ishiyama K, Kimura T, Takahashi K, Sato M, Mori T. Inhibition of sodium-glucose cotransporter 2 suppresses renal stone formation. Pharmacol Res 2022; 186:106524. [PMID: 36349594 DOI: 10.1016/j.phrs.2022.106524] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND AIMS Nephrolithiasis is a common renal disease with no effective medication. Sodium-glucose cotransporter-2 (SGLT2) inhibitors, an anti-diabetic agent, have diuretic and anti-inflammatory properties and could prevent nephrolithiasis. Here, we investigated the potential of SGLT2 inhibition against nephrolithiasis using large-scale epidemiological data, animal models, and cell culture experiments. METHODS This study included the data of diabetic patients (n = 1,538,198) available in the Japanese administrative database and divided them according to SGLT2 inhibitor prescription status. For animal experiments, renal calcium oxalate stones were induced by ethylene glycol in Sprague-Dawley rats, and phlorizin, an SGLT1/2 inhibitor, was used for the treatment. The effects of SGLT2-specific inhibition for renal stone formation were assessed in SGLT2-deficient mice and a human proximal tubular cell line, HK-2. RESULTS Nephrolithiasis prevalence in diabetic men was significantly lower in the SGLT2 inhibitor prescription group than in the non-SGLT2 inhibitor prescription group. Phlorizin attenuated renal stone formation and downregulated the kidney injury molecule 1 (Kim1) and osteopontin (Opn) expression in rats, with unchanged water intake and urine volume. It suppressed inflammation and macrophage marker expression, suggesting the role of the SGLT2 inhibitor in reducing inflammation. SGLT2-deficient mice were resistant to glyoxylic acid-induced calcium oxalate stone formation with reduced Opn expression and renal damages. High glucose-induced upregulation of OPN and CD44 and cell surface adhesion of calcium oxalate reduced upon SGLT2-silencing in HK-2 cells. CONCLUSION Overall, our findings identified that SGLT2 inhibition prevents renal stone formation and may be a promising therapeutic approach against nephrolithiasis.
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Affiliation(s)
- Go Anan
- Department of Urology, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Department of Urology, Yotsuya Medical Cube, Tokyo, Japan
| | - Takuo Hirose
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Division of Integrative Renal Replacement Therapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Daisuke Kikuchi
- Department of Pharmacy, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan
| | - Chika Takahashi
- Division of Integrative Renal Replacement Therapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Akari Endo
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroki Ito
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigemitsu Sato
- Division of Integrative Renal Replacement Therapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shingo Nakayama
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Hideaki Hashimoto
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Katsuya Ishiyama
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomoyoshi Kimura
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Kazuhiro Takahashi
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Makoto Sato
- Department of Urology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Takefumi Mori
- Division of Nephrology and Endocrinology, Tohoku Medical and Pharmaceutical University, Sendai, Japan; Division of Integrative Renal Replacement Therapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
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9
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Yasuda S, Sumioka T, Miyajima M, Iwanishi H, Morii T, Mochizuki N, Reinach PS, Kao WWY, Okada Y, Liu CY, Saika S. Anomaly of cornea and ocular adnexa in spinster homolog 2 (Spns2) knockout mice. Ocul Surf 2022; 26:111-127. [PMID: 35988880 DOI: 10.1016/j.jtos.2022.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/26/2022] [Accepted: 08/13/2022] [Indexed: 10/15/2022]
Abstract
Spinster 2 (Spns2) is a transporter that pumps sphingosine-1-phosphate (S1P), a bioactive lipid mediator synthesized in the cytoplasm, out of cells into the inter cellular space. S1P is a signal that modulates cellular behavior during embryonic development, inflammation and tissue repair, etc. A Spns2-null (KO) mouse is born with failure of eyelid closure (eyelid-open-at birth; EOB) and develop corneal fibrosis in adulthood. It remains elusive whether corneal lesion is caused by exposure to keratitis (lagophthalmos) of EOB phenotype or the loss of Spns2 directly perturbs the corneal tissue morphogenesis and intra-eyelid structures. Therefore, we investigated differences between the cornea and ocular adnexa morphogenesis in KO and wild-type (WT) embryos and adults as well. The loss of Spns2 perturbs cornea morphogenesis during embryonic development as early as E16.5 besides EOB phenotype. Histology showed that the corneal stroma was thinner with less extracellular matrix accumulation, e.g., collagen and keratocan in the KO mouse. Epithelial stratification, expression of keratin 12 and formation of desmosomes and hemidesmosomes were also perturbed in these KO corneas. Lacking Spns2 impaired morphogenesis of the Meibomian glands and of orbicularis oculi muscles. KO glands were labeled for ELOVL4 and PPARγ and were Oil-Red O-positive, suggesting KO acinar cells possessed functionality as the glands. This is the first report on the roles of Spns2 in corneal and Meibomian gland morphogenesis. Corneal tissue destruction in an adult KO mouse might be due to not only lagophthalmos but also to an impaired morphogenesis of cornea, Meibomian glands, and orbicularis oculi muscle.
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Affiliation(s)
- Shingo Yasuda
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan; Indiana University School of Optometry, USA.
| | - Takayoshi Sumioka
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan
| | - Masayasu Miyajima
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan
| | - Hiroki Iwanishi
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan
| | - Tomoya Morii
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Japan
| | - Peter S Reinach
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Winston W Y Kao
- Crawley Vision Research Center & Ophthalmic Research Laboratory, Department of Ophthalmology, College of Medicine University of Cincinnati, USA
| | - Yuka Okada
- Deaprtment of Ophthalmology, Kihoku Hospital, Wakayama Medical University School of Medicine, Japan
| | | | - Shizuya Saika
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Japan
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10
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Mechanism of Cornus Officinalis in Treating Diabetic Kidney Disease Based on Network Pharmacology. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1799106. [PMID: 35855831 PMCID: PMC9288281 DOI: 10.1155/2022/1799106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 04/24/2022] [Accepted: 05/05/2022] [Indexed: 11/28/2022]
Abstract
Diabetic kidney disease (DKD), one of the most important diabetic complications, is a great clinical challenge. It still lacks proper therapeutic strategies without side effects due to the complex pathological mechanisms. Cornus officinalis (CO) is a common traditional Chinese medicine, which has been used in the treatment of DKD and takes beneficial effects in therapy. However, the mechanism of CO in treating DKD is not clear yet. In this study, network pharmacology was applied to illustrate the potential mechanism of CO and the interaction between targets of CO and targets of disease. First, the active ingredients of CO and related targets were screened from the online database. Second, the intersection network between CO and disease was constructed, and protein–protein interaction analysis was done. Third, GO and KEGG analysis were employed to figure out the key targets of CO. Finally, molecular docking was carried out in the software SYBYL to verify the effectiveness of the ingredients and targets selected. According to GO and KEGG analysis, drug metabolism-cytochrome P450, sphingolipid signaling pathway, HIF-1 signaling pathway, TGF-beta signaling pathway, cGMP-PKG signaling pathway, estrogen signaling pathway, and TNF signaling pathway were most closely related to the pathogenesis of DKD. Moreover, NOS3, TNF, ROCK1, PPARG, KDR, and HIF1A were identified as key targets in regulating the occurrence and development of the disease. This study provides evidence to elucidate the mechanism of CO comprehensively and systematically and lays the foundation for further research on CO.
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Reslan A, Haddad JG, Desprès P, Bascands JL, Gadea G. High Glucose Induces in HK2 Kidney Cells an IFN–Dependent ZIKV Antiviral Status Fueled by Viperin. Biomedicines 2022; 10:biomedicines10071577. [PMID: 35884880 PMCID: PMC9313244 DOI: 10.3390/biomedicines10071577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 12/19/2022] Open
Abstract
Zika virus (ZIKV) is an emerging mosquito-borne flavivirus that rapidly became a major medical concern worldwide. We have recently reported that a high glucose level decreases the rate of Zika virus (ZIKV) replication with an impact on human kidney HK-2 cell survival. However, the mechanisms by which cells cultured in a high glucose medium inhibit ZIKV growth remain unclear. Viperin belongs to interferon-stimulated genes (ISG) and its expression is highly up-regulated upon viral infection, leading to antiviral activity against a variety of viruses, including flaviviruses. As such, viperin has been shown to be a major actor involved in the innate immune response against Zika virus (ZIKV). Our present study aims to further characterize the involvement of viperin in ZIKV growth inhibition under high glucose concentration (HK-2HGC). We show for the first time that endogenous viperin is over-expressed in HK-2 cells cultured under high glucose concentration (HK-2HGC), which is associated with ZIKV growth inhibition. Viperin knockdown in HK-2HGC rescues ZIKV growth. In addition, our results emphasize that up-regulated viperin in HK-2HGC leads to ZIKV growth inhibition through the stimulation of IFN-β production. In summary, our work provides new insights into the ZIKV growth inhibition mechanism observed in HK-2 cells cultured in a high glucose environment.
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Affiliation(s)
- Alawiya Reslan
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (A.R.); (J.G.H.); (P.D.)
- Unité Mixte Diabète Athérothrombose Thérapies Réunion Océan Indien, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1188, 94791 Sainte Clotilde, La Réunion, France
| | - Juliano G. Haddad
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (A.R.); (J.G.H.); (P.D.)
| | - Philippe Desprès
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (A.R.); (J.G.H.); (P.D.)
| | - Jean-Loup Bascands
- Unité Mixte Diabète Athérothrombose Thérapies Réunion Océan Indien, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1188, 94791 Sainte Clotilde, La Réunion, France
- Correspondence: (J.-L.B.); (G.G.); Tel.: +262-262-938-806 (G.G.)
| | - Gilles Gadea
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (A.R.); (J.G.H.); (P.D.)
- Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, INSERM U1194, IRCM, F-34298 Montpellier, France
- Correspondence: (J.-L.B.); (G.G.); Tel.: +262-262-938-806 (G.G.)
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Mechanism of glycometabolism regulation by bioactive compounds from the fruits of Lycium barbarum: A review. Food Res Int 2022; 159:111408. [DOI: 10.1016/j.foodres.2022.111408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/30/2022] [Accepted: 05/22/2022] [Indexed: 11/21/2022]
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13
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Mallela SK, Merscher S, Fornoni A. Implications of Sphingolipid Metabolites in Kidney Diseases. Int J Mol Sci 2022; 23:ijms23084244. [PMID: 35457062 PMCID: PMC9025012 DOI: 10.3390/ijms23084244] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 12/18/2022] Open
Abstract
Sphingolipids, which act as a bioactive signaling molecules, are involved in several cellular processes such as cell survival, proliferation, migration and apoptosis. An imbalance in the levels of sphingolipids can be lethal to cells. Abnormalities in the levels of sphingolipids are associated with several human diseases including kidney diseases. Several studies demonstrate that sphingolipids play an important role in maintaining proper renal function. Sphingolipids can alter the glomerular filtration barrier by affecting the functioning of podocytes, which are key cellular components of the glomerular filtration barrier. This review summarizes the studies in our understanding of the regulation of sphingolipid signaling in kidney diseases, especially in glomerular and tubulointerstitial diseases, and the potential to target sphingolipid pathways in developing therapeutics for the treatment of renal diseases.
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Affiliation(s)
- Shamroop kumar Mallela
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
- Peggy and Harold Katz Family Drug Discovery Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Sandra Merscher
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
- Peggy and Harold Katz Family Drug Discovery Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Correspondence: (S.M.); (A.F.); Tel.: +1-305-243-6567 (S.M.); +1-305-243-3583 (A.F.); Fax: +1-305-243-3209 (S.M.); +1-305-243-3506 (A.F.)
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
- Peggy and Harold Katz Family Drug Discovery Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Correspondence: (S.M.); (A.F.); Tel.: +1-305-243-6567 (S.M.); +1-305-243-3583 (A.F.); Fax: +1-305-243-3209 (S.M.); +1-305-243-3506 (A.F.)
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Ueda N. A Rheostat of Ceramide and Sphingosine-1-Phosphate as a Determinant of Oxidative Stress-Mediated Kidney Injury. Int J Mol Sci 2022; 23:ijms23074010. [PMID: 35409370 PMCID: PMC9000186 DOI: 10.3390/ijms23074010] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) modulate sphingolipid metabolism, including enzymes that generate ceramide and sphingosine-1-phosphate (S1P), and a ROS-antioxidant rheostat determines the metabolism of ceramide-S1P. ROS induce ceramide production by activating ceramide-producing enzymes, leading to apoptosis, while they inhibit S1P production, which promotes survival by suppressing sphingosine kinases (SphKs). A ceramide-S1P rheostat regulates ROS-induced mitochondrial dysfunction, apoptotic/anti-apoptotic Bcl-2 family proteins and signaling pathways, leading to apoptosis, survival, cell proliferation, inflammation and fibrosis in the kidney. Ceramide inhibits the mitochondrial respiration chain and induces ceramide channel formation and the closure of voltage-dependent anion channels, leading to mitochondrial dysfunction, altered Bcl-2 family protein expression, ROS generation and disturbed calcium homeostasis. This activates ceramide-induced signaling pathways, leading to apoptosis. These events are mitigated by S1P/S1P receptors (S1PRs) that restore mitochondrial function and activate signaling pathways. SphK1 promotes survival and cell proliferation and inhibits inflammation, while SphK2 has the opposite effect. However, both SphK1 and SphK2 promote fibrosis. Thus, a ceramide-SphKs/S1P rheostat modulates oxidant-induced kidney injury by affecting mitochondrial function, ROS production, Bcl-2 family proteins, calcium homeostasis and their downstream signaling pathways. This review will summarize the current evidence for a role of interaction between ROS-antioxidants and ceramide-SphKs/S1P and of a ceramide-SphKs/S1P rheostat in the regulation of oxidative stress-mediated kidney diseases.
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Affiliation(s)
- Norishi Ueda
- Department of Pediatrics, Public Central Hospital of Matto Ishikawa, 3-8 Kuramitsu, Hakusan 924-8588, Japan
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15
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Eskes ECB, van der Lienden MJC, Roelofs JJTH, Vogt L, Aerts JMFG, Aten J, Hollak CEM. Renal involvement in a patient with the chronic visceral subtype of acid sphingomyelinase deficiency resembles Fabry disease. JIMD Rep 2021; 62:15-21. [PMID: 34765393 PMCID: PMC8574181 DOI: 10.1002/jmd2.12242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/02/2021] [Accepted: 07/06/2021] [Indexed: 11/18/2022] Open
Abstract
Acid sphingomyelinase deficiency (ASMD) is a lysosomal storage disease (LSD) in which sphingomyelin accumulates due to deficient acid sphingomyelinase. In the chronic visceral subtype, organ manifestations are generally limited to the spleen, liver, and lungs. We report a male patient with the chronic visceral subtype who developed proteinuria and renal insufficiency at the age of 49. In renal tissue, foam cells were observed in the glomeruli as well as sphingomyelin accumulation within podocytes, mesangial cells, endothelial cells, and tubular epithelial cells. Although macrophages are the primary storage cells in both ASMD and Gaucher disease, comparison to the histopathological findings in Gaucher and Fabry disease revealed a diffuse storage pattern in multiple renal cell types, closer resembling the pattern found in Fabry disease.
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Affiliation(s)
- Eline C. B. Eskes
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
| | - Martijn J. C. van der Lienden
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
- Department of PathologyAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
| | - Joris J. T. H. Roelofs
- Department of PathologyAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
- Amsterdam UMC, Amsterdam Cardiovascular SciencesDepartment of Internal Medicine, section Nephrology, University of AmsterdamAmsterdamThe Netherlands
| | - Liffert Vogt
- Amsterdam UMC, Amsterdam Cardiovascular SciencesDepartment of Internal Medicine, section Nephrology, University of AmsterdamAmsterdamThe Netherlands
| | - Johannes M. F. G. Aerts
- Leiden Institute of Chemistry, Department of Medical BiochemistryUniversity of LeidenLeidenThe Netherlands
| | - Jan Aten
- Department of PathologyAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
| | - Carla E. M. Hollak
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
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Jiménez-Uribe AP, Gómez-Sierra T, Aparicio-Trejo OE, Orozco-Ibarra M, Pedraza-Chaverri J. Backstage players of fibrosis: NOX4, mTOR, HDAC, and S1P; companions of TGF-β. Cell Signal 2021; 87:110123. [PMID: 34438016 DOI: 10.1016/j.cellsig.2021.110123] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 12/16/2022]
Abstract
The fibrotic process could be easily defined as a pathological excess of extracellular matrix deposition, leading to disruption of tissue architecture and eventually loss of function; however, this process involves a complex network of several signal transduction pathways. Virtually almost all organs could be affected by fibrosis, the most affected are the liver, lung, skin, kidney, heart, and eyes; in all of them, the transforming growth factor-beta (TGF-β) has a central role. The canonical and non-canonical signal pathways of TGF-β impact the fibrotic process at the cellular and molecular levels, inducing the epithelial-mesenchymal transition (EMT) and the induction of profibrotic gene expression with the consequent increase in proteins such as alpha-smooth actin (α-SMA), fibronectin, collagen, and other extracellular matrix proteins. Recently, it has been reported that some molecules that have not been typically associated with the fibrotic process, such as nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (NOX4), mammalian target of rapamycin (mTOR), histone deacetylases (HDAC), and sphingosine-1 phosphate (S1P); are critical in its development. In this review, we describe and discuss the role of these new players of fibrosis and the convergence with TGF-β signaling pathways, unveiling new insights into the panorama of fibrosis that could be useful for future therapeutic targets.
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Affiliation(s)
| | - Tania Gómez-Sierra
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico
| | - Omar Emiliano Aparicio-Trejo
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City 14080, Mexico
| | - Marisol Orozco-Ibarra
- Laboratorio de Neurobiología Molecular y Celular, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Av. Insurgentes Sur # 3877, La Fama, Alcaldía Tlalpan, CP 14269 Ciudad de México, Mexico
| | - José Pedraza-Chaverri
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, CDMX 04510, Mexico.
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Donati C, Cencetti F, Bernacchioni C, Vannuzzi V, Bruni P. Role of sphingosine 1-phosphate signalling in tissue fibrosis. Cell Signal 2020; 78:109861. [PMID: 33253915 DOI: 10.1016/j.cellsig.2020.109861] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023]
Abstract
Fibrosis is characterized by the excessive accumulation of extracellular matrix components, leading to loss of tissue function in affected organs. Although the majority of fibrotic diseases have different origins, they have in common a persistent inflammatory stimulus and lymphocyte-monocyte interactions that determine the production of numerous fibrogenic cytokines. Treatment to contrast fibrosis is urgently needed, since some fibrotic diseases lead to systemic fibrosis and represent a major cause of death. In this article, the role of the bioactive sphingolipid sphingosine 1-phosphate (S1P) and its signalling pathway in the fibrosis of different tissue contexts is extensively reviewed, highlighting that it may represent an innovative and promising pharmacological therapeutic target for treating this devastating multifaceted disease. In multiple tissues S1P influences different aspects of fibrosis modulating the recruitment of inflammatory cells, as well as cell proliferation, migration and transdifferentiation into myofibroblasts, the cell type mainly involved in fibrosis development. Moreover, at the level of fibrotic lesions, S1P metabolism is profoundly influenced by multiple cross-talk with profibrotic mediators, such as transforming growth factor β, thus finely regulating the development of fibrosis. This article is part of a Special Issue entitled "Physiological and pathological roles of bioactive sphingolipids".
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Affiliation(s)
- Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy.
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Valentina Vannuzzi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
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Tumor necrosis factor superfamily 14 is critical for the development of renal fibrosis. Aging (Albany NY) 2020; 12:25469-25486. [PMID: 33231567 PMCID: PMC7803499 DOI: 10.18632/aging.104151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 08/29/2020] [Indexed: 01/13/2023]
Abstract
Objective: Tumor necrosis factor superfamily protein 14 (TNFSF14) was recently identified as a risk factor in some fibrosis diseases. However, the role of TNFSF14 in renal fibrosis pathogenesis remains unknown. Results: It was found that TNFSF14 levels were significantly increased both in UUO-induced renal fibrotic mice and in patients with fibrotic nephropathy, compared with those in controls. Accordingly, Tnfsf14 deficiency led to a marked reduction in renal fibrosis lesions and inflammatory cytokines expression in the UUO mice. Furthermore, the levels of Sphk1, a critical molecule that causes fibrotic nephropathy, were remarkably reduced in Tnfsf14 KO mice with UUO surgery. In vitro recombinant TNFSF14 administration markedly up-regulated the expression of Sphk1 of primary mouse renal tubular epithelial cells (mTECs). Conclusion: TNFSF14 is a novel pro-fibrotic factor of renal fibrosis, for which TNFSF14 up-regulates Sphk1 expression, which may be the underlying mechanism of TNFSF14-mediated renal fibrosis. Methods: We investigated the effect of TNFSF14 on renal fibrosis and the relationship between TNFSF14 and pro-fibrotic factor sphingosine kinase 1 (Sphk1) by using the unilateral urethral obstruction (UUO)-induced mice renal fibrosis as a model and the specimen of patients with fibrosis nephropathy, by Masson trichrome staining, immunohistochemistry, qRT-PCR, and western blot analysis.
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Gupta P, Taiyab A, Hassan MI. Emerging role of protein kinases in diabetes mellitus: From mechanism to therapy. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020; 124:47-85. [PMID: 33632470 DOI: 10.1016/bs.apcsb.2020.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Diabetes mellitus has emerged as a severe burden on the medical health system across the globe. Presently, around 422 million people are suffering from diabetes which is speculated to be expanded to about 600 million by 2035. Patients with type 2 diabetes are at increased risk of developing detrimental metabolic and cardiovascular complications. The scientific understanding of this chronic disease and its underlying root cause is not yet fully unraveled. Protein kinases are well known to regulate almost every cellular process through phosphorylation of target protein in diverse signaling pathways. The important role of several protein kinases including AMP-activated protein kinase, IκB kinase and protein kinase C have been well demonstrated in various animal models. They modulate glucose tolerance, inflammation and insulin resistance in the cells via acting on diverse downstream targets and signaling pathways. Thus, modulating the activity of potential human kinases which are significantly involved in diabetes by targeting with small molecule inhibitors could be an attractive therapeutic strategy to tackle diabetes. In this chapter, we have discussed the potential role of protein kinases in glucose metabolism and insulin sensitivity, and in the pathogenesis of diabetes mellitus. Furthermore, the small molecules reported in the literature that can be potentially used for the treatment of diabetes have been discussed in detail.
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Affiliation(s)
- Preeti Gupta
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Aaliya Taiyab
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India.
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Sphingosine-1-phosphate in anti-neutrophil cytoplasmic antibody-associated vasculitis: coagulation-related clinical indicators and complications. Biosci Rep 2020; 40:226723. [PMID: 33083841 PMCID: PMC7601353 DOI: 10.1042/bsr20200157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 10/05/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Sphingosine-1-phosphate (S1P) plays a significant role in anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). METHODS We collected the plasma samples from 40 patients with AAV and 10 healthy volunteers. The plasma levels of S1P were tested by enzyme-linked immunosorbent assay (ELISA). The levels of serum creatinine (Scr) were tested by rate method, and then the estimated glomerular filtration rate (eGFR) of the patients was calculated from the Scr, age, and gender. Prothrombin time (PT), partial thromboplastin time (APTT), thrombin time (TT), fibrinogen (FIB), fibrinogen reduction product (FDP), D-dimer and C-reactive protein (CRP) were tested by turbidimetric inhibition immunoassays. Platelets (PLTs) were tested by fluorescently labeled electrical impedance method. RESULTS The plasma levels of S1P were significantly higher in AAV patients than in healthy volunteers. Correlation analysis showed that plasma levels of S1P were negatively correlated with glomerular filtration (P=0.022, r = -0.306), and positively correlated with circulating levels of Birmingham vasculitis activity score (BVAS), PLT and D-dimer, (P=0.004, r = 0.443; P<0.001, r = 0.654; P=0.006, r = 0.427). The 40 patients with AAV were classified into three groups: the thromboembolism group (with complications of cerebral infarction and myocardial infarction, n=6), cerebral ischemia group (n=4), and cerebral hemorrhage group (n=2). The plasma levels of S1P were highest in the thromboembolism group and lowest in the cerebral hemorrhage group (P=0.003). CONCLUSIONS Plasma levels of S1P were associated with circulating levels of D-dimer, PLT and BVAS in the patients with AAV. Hence, plasma S1P level can be used as a biomarker to predict coagulation-related complications in AAV.
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21
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Mitrofanova A, Drexler Y, Merscher S, Fornoni A. Role of Sphingolipid Signaling in Glomerular Diseases: Focus on DKD and FSGS. JOURNAL OF CELLULAR SIGNALING 2020; 1:56-69. [PMID: 32914148 PMCID: PMC7480905 DOI: 10.33696/signaling.1.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sphingolipids are well-recognized as major players in the pathogenesis of many human diseases, including chronic kidney disease. The kidney is a very sensitive organ to alterations in sphingolipid metabolism. The critical issues to be addressed in this review relate to the role of sphingolipids and enzymes involved in sphingolipid metabolism in the pathogenesis of glomerular diseases with a special focus on podocytes, a key cellular component of the glomerular filtration barrier. Among several sphingolipids, we will highlight the role of ceramide, sphingosine, sphingosine-1-phosphate and ceramide-1-phosphate. Additionally, we will summarize the current knowledge with regard to the use of sphingolipids as therapeutic agents for the treatment of podocyte injury in kidney disease.
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Affiliation(s)
- Alla Mitrofanova
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, Florida, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, Florida, USA
- Department of Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Yelena Drexler
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, Florida, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Sandra Merscher
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, Florida, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, Florida, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, Florida, USA
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22
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Fan X, Liu L, Shi Y, Guo F, He X, Zhao X, Zhong D, Li G. Recent advances of the function of sphingosine 1-phosphate (S1P) receptor S1P3. J Cell Physiol 2020; 236:1564-1578. [PMID: 33410533 DOI: 10.1002/jcp.29958] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/18/2022]
Abstract
Known as a variety of sphingolipid metabolites capable of performing various biological activities, sphingosine 1-phosphate (S1P) is commonly found in platelets, red blood cells, neutrophils, lymph fluid, and blood, as well as other cells and body fluids. S1P comprises five receptors, namely, S1P1-S1P5, with the distribution of S1P receptors exhibiting tissue selectivity to some degree. S1P1, S1P2, and S1P3 are extensively expressed in a wide variety of different tissues. The expression of S1P4 is restricted to lymphoid and hematopoietic tissues, while S1P5 is primarily expressed in the nervous system. S1P3 plays an essential role in the pathophysiological processes related to inflammation, cell proliferation, cell migration, tumor invasion and metastasis, ischemia-reperfusion, tissue fibrosis, and vascular tone. In this paper, the relevant mechanism in the role of S1P3 is summarized.
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Affiliation(s)
- Xuehui Fan
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Lili Liu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yue Shi
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Fanghan Guo
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiao He
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiuli Zhao
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Di Zhong
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Guozhong Li
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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23
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Xie T, Chen C, Peng Z, Brown BC, Reisz JA, Xu P, Zhou Z, Song A, Zhang Y, Bogdanov MV, Kellems RE, D'Alessandro A, Zhang W, Xia Y. Erythrocyte Metabolic Reprogramming by Sphingosine 1-Phosphate in Chronic Kidney Disease and Therapies. Circ Res 2020; 127:360-375. [PMID: 32284030 DOI: 10.1161/circresaha.119.316298] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
RATIONALE Hypoxia promotes renal damage and progression of chronic kidney disease (CKD). The erythrocyte is the only cell type for oxygen (O2) delivery. Sphingosine 1-phosphate (S1P)-a highly enriched biolipid in erythrocytes-is recently reported to be induced under high altitude in normal humans to enhance O2 delivery. However, nothing is known about erythrocyte S1P in CKD. OBJECTIVE To investigate the function and metabolic basis of erythrocyte S1P in CKD with a goal to explore potential therapeutics. METHODS AND RESULTS Using erythrocyte-specific SphK1 (sphingosine kinase 1; the only enzyme to produce S1P in erythrocytes) knockout mice (eSphK1-/-) in an experimental model of hypertensive CKD with Ang II (angiotensin II) infusion, we found severe renal hypoxia, hypertension, proteinuria, and fibrosis in Ang II-infused eSphk1-/- mice compared with controls. Untargeted metabolomics profiling and in vivo U-13C6 isotopically labeled glucose flux analysis revealed that SphK1 is required for channeling glucose metabolism toward glycolysis versus pentose phosphate pathway, resulting in enhanced erythroid-specific Rapoport-Luebering shunt in Ang II-infused mice. Mechanistically, increased erythrocyte S1P functioning intracellularly activates AMPK (AMP-activated protein kinase) 1α and BPGM (bisphosphoglycerate mutase) by reducing ceramide/S1P ratio and inhibiting PP2A (protein phosphatase 2A), leading to increased 2,3-bisphosphoglycerate (an erythrocyte-specific metabolite negatively regulating Hb [hemoglobin]-O2-binding affinity) production and thus more O2 delivery to counteract kidney hypoxia and progression to CKD. Preclinical studies revealed that an AMPK agonist or a PP2A inhibitor rescued the severe CKD phenotype in Ang II-infused eSphK1-/- mice and prevented development of CKD in the control mice by inducing 2,3-bisphosphoglycerate production and thus enhancing renal oxygenation. Translational research validated mouse findings in erythrocytes of hypertensive CKD patients and cultured human erythrocytes. CONCLUSIONS Our study elucidates the beneficial role of eSphk1-S1P in hypertensive CKD by channeling glucose metabolism toward Rapoport-Luebering shunt and inducing 2,3-bisphosphoglycerate production and O2 delivery via a PP2A-AMPK1α signaling pathway. These findings reveal the metabolic and molecular basis of erythrocyte S1P in CKD and new therapeutic avenues.
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Affiliation(s)
- Tingting Xie
- From the Rheumatology and Immunology (T.X.), Xiangya Hospital, Central South University, Changsha, Hunan, China.,Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Changhan Chen
- Otolaryngology Head and Neck Surgery (C.C.), Xiangya Hospital, Central South University, Changsha, Hunan, China.,Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Zhangzhe Peng
- Nephrology (Z.P.), Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Benjamin C Brown
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora (B.C.B., J.A.R., A.D.)
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora (B.C.B., J.A.R., A.D.)
| | - Ping Xu
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Zhen Zhou
- Division of Medical Genetics, Department of Internal Medicine (Z.Z.), University of Texas McGovern Medical School at Houston
| | - Anren Song
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Yujin Zhang
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Mikhail V Bogdanov
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Rodney E Kellems
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston.,MDAnderson-UTHealth Graduate School of Biomedical Science, Houston, TX (R.E.K., Y.X.)
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora (B.C.B., J.A.R., A.D.)
| | - Weiru Zhang
- General Medicine (W.Z.), Xiangya Hospital, Central South University, Changsha, Hunan, China.,Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston
| | - Yang Xia
- Biochemistry and Molecular Biology (T.X., C.C., P.X., A.S., Y.Z., M.V.B., R.E.K., W.Z., Y.X.), University of Texas McGovern Medical School at Houston.,MDAnderson-UTHealth Graduate School of Biomedical Science, Houston, TX (R.E.K., Y.X.)
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24
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Macrophage Phenotype and Fibrosis in Diabetic Nephropathy. Int J Mol Sci 2020; 21:ijms21082806. [PMID: 32316547 PMCID: PMC7215738 DOI: 10.3390/ijms21082806] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) is the leading cause of end-stage renal disease globally. The primary initiating mechanism in DN is hyperglycemia-induced vascular dysfunction, but its progression is due to different pathological mechanisms, including oxidative stress, inflammatory cells infiltration, inflammation and fibrosis. Macrophages (Mφ) accumulation in kidneys correlates strongly with serum creatinine, interstitial myofibroblast accumulation and interstitial fibrosis scores. However, whether or not Mφ polarization is involved in the progression of DN has not been adequately defined. The prevalence of the different phenotypes during the course of DN, the existence of hybrid phenotypes and the plasticity of these cells depending of the environment have led to inconclusive results. In the same sense the role of the different macrophage phenotype in fibrosis associated or not to DN warrants additional investigation into Mφ polarization and its role in fibrosis. Due to the association between fibrosis and the progressive decline of renal function in DN, and the role of the different phenotypes of Mφ in fibrosis, in this review we examine the role of macrophage phenotype control in DN and highlight the potential factors contributing to phenotype change and injury or repair in DN.
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25
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Sui J, He M, Wang Y, Zhao X, He Y, Shi B. Sphingolipid metabolism in type 2 diabetes and associated cardiovascular complications. Exp Ther Med 2019; 18:3603-3614. [PMID: 31602237 DOI: 10.3892/etm.2019.7981] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 08/01/2019] [Indexed: 12/12/2022] Open
Abstract
Sphingolipid metabolism is dysregulated in type 2 diabetes mellitus (T2DM); however, the focus of previous studies was mostly limited to ceramide (Cer), and only few studies have investigated other metabolites, including sphingosine-1 phosphate (So1P). The present study aimed to examine the involvement of 8 major sphingolipid metabolites, including Cer, glucosyl ceramide (GluCer), lactosyl ceramide (LacCer), sphingomyelin (SM), sphinganine (Sa), So1P, sphingosine (So) and sphinganine-1-phosphate (Sa1P), during the progression of T2DM, and to evaluate the ability of serum sphingolipids to predict cases of diabetes with an elevated risk of cardiovascular complications. Blood samples were obtained from 245 participants who were divided into 3 groups: Healthy controls, pre-diabetes (pre-DM) and diagnosed diabetes. The 8 major sphingolipid metabolites were measured by high-performance liquid chromatography-tandem mass spectrometry and blood parameters were determined by routine laboratory assays for all subjects. Among the sphingolipid metabolites, So1P was associated with sex and lean mass index, but not with the body mass index. So1P was highest in healthy controls and gradually decreased when the disease proceeded to pre-DM and T2DM. GluCer, SM, Sa and So decreased in pre-DM and rose again in T2DM, graphically exhibiting a 'U' shape change during the progression of diabetes. So1P and Sa were identified to be significantly associated with cardiovascular complications by multivariate logistic regression analysis. Receiver operating characteristic curve analysis also suggested that So1P and Sa were able to indicate cardiovascular complications in diabetic patients. Pre-DM and diabetes were significantly associated with decreased So1P, SM, Sa and So, compared with the healthy controls. So1P was correlated with the progression of T2DM, and was a predictor of an elevated risk of cardiovascular complications among T2DM patients, along with Sa. The present study was registered with ClinicalTrials.gov (no. NCT02826759; April 2016).
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Affiliation(s)
- Jing Sui
- Department of Endocrinology and International Medical Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Mingqian He
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yue Wang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xinrui Zhao
- Department of Immunology and Rheumatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Yizhi He
- Department of Endocrinology, Xi'an No. 3 Hospital, Xi'an, Shaanxi 710018, P.R. China
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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26
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Lee JH, Kim D, Oh YS, Jun HS. Lysophosphatidic Acid Signaling in Diabetic Nephropathy. Int J Mol Sci 2019; 20:ijms20112850. [PMID: 31212704 PMCID: PMC6600156 DOI: 10.3390/ijms20112850] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 02/07/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive phospholipid present in most tissues and body fluids. LPA acts through specific LPA receptors (LPAR1 to LPAR6) coupled with G protein. LPA binds to receptors and activates multiple cellular signaling pathways, subsequently exerting various biological functions, such as cell proliferation, migration, and apoptosis. LPA also induces cell damage through complex overlapping pathways, including the generation of reactive oxygen species, inflammatory cytokines, and fibrosis. Several reports indicate that the LPA–LPAR axis plays an important role in various diseases, including kidney disease, lung fibrosis, and cancer. Diabetic nephropathy (DN) is one of the most common diabetic complications and the main risk factor for chronic kidney diseases, which mostly progress to end-stage renal disease. There is also growing evidence indicating that the LPA–LPAR axis also plays an important role in inducing pathological alterations of cell structure and function in the kidneys. In this review, we will discuss key mediators or signaling pathways activated by LPA and summarize recent research findings associated with DN.
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Affiliation(s)
- Jong Han Lee
- College of Pharmacy, Gachon University, Incheon 21936, Korea.
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
| | - Donghee Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
| | - Yoon Sin Oh
- Department of Food and Nutrition, Eulji University, Seongnam 13135, Korea.
| | - Hee-Sook Jun
- College of Pharmacy, Gachon University, Incheon 21936, Korea.
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
- Gachon University Gil Medical Center, Gachon Medical and Convergence Institute, Incheon 21565, Korea.
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27
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Huang F, Sheng XX, Zhang HJ. DUSP26 regulates podocyte oxidative stress and fibrosis in a mouse model with diabetic nephropathy through the mediation of ROS. Biochem Biophys Res Commun 2019; 515:410-416. [PMID: 31155289 DOI: 10.1016/j.bbrc.2019.05.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 05/03/2019] [Indexed: 01/02/2023]
Abstract
Diabetic nephropathy (DN) is a leading cause of renal failure worldwide. Unfortunately, the pathogenetic mechanism of DN is far from to be understood. Dual-specificity phosphatase 26 (DUSP26) is a member of the Dusp protein family, and is suggested to be involved in divers biological and pathological processes, such as cell growth, differentiation, inflammation and apoptosis. However, its role in the development of DN is still vague. In this study, we found that DUSP26 expression was increased in kidney of DN patients. Then, the wild type (DUSP26+/+) and gene knockout (DUSP26-/-) mice were used to further explore the effects of DUSP26 on DN development induced by streptozotocin (STZ). DUSP26 deficiency accelerated renal injury and dysfunction, as evidenced by the elevated glomerulosclerosis, reduced expression of Nephrin and promoted glomerular basement membrane thickness. In addition, STZ treatment resulted in reactive oxygen species (ROS) accumulation, H2O2 overproduction and superoxide dismutase (SOD) reduction in renal cortex or glomeruli of mice. The ROS production caused the activation of mitogen-activated protein kinase (MAPKs) signaling in kidney glomeruli of STZ-induced mice. These in vivo pathological processes were further confirmed in the differentiated podocytes stimulated by glucose (GLU). Intriguingly, we found that STZ-induced DN as mentioned above was further accelerated by DUSP26-/- in mice following STZ injection. Moreover, STZ-induced fibrosis in kidney glomeruli of DN mice was markedly prolonged in DUSP26-knockout mice through potentiating transforming growth factor-β1 (TGF-β1) expression. More importantly, reducing ROS generation could significantly abolish DUSP26 knockdown-exacerbated TGF-β1 expression and MAPKs activation, thereby protecting podocytes from GLU-induced podocyte injury. Thus, DUSP26-regulated DN development was largely dependent on ROS generation. Taken together, we concluded that DUSP26 might be a promising therapeutic target for developing effective treatments against DN progression.
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Affiliation(s)
- Feng Huang
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China
| | - Xu-Xiang Sheng
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China
| | - Hong-Juan Zhang
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China.
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28
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Perez DA, Galvão I, Athayde RM, Rezende BM, Vago JP, Silva JD, Reis AC, Ribeiro LS, Gomes JHS, Pádua RM, Braga FC, Sousa LP, Teixeira MM, Pinho V. Inhibition of the sphingosine-1-phosphate pathway promotes the resolution of neutrophilic inflammation. Eur J Immunol 2019; 49:1038-1051. [PMID: 30939218 DOI: 10.1002/eji.201848049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/27/2019] [Accepted: 04/01/2019] [Indexed: 12/19/2022]
Abstract
Sphingosine-1-phosphate (S1P) is an important sphingolipid derived from plasma membrane and has a known role in productive phase of inflammation, but its role in neutrophil survival and resolution phase of inflammation is unknown. Here, we investigated the effects of inhibition of S1P receptors and the blockade of S1P synthesis in BALB/c mice and human neutrophils. S1P and S1PR1-3 receptors expression were increased in cells from the pleural cavity stimulated with LPS. Using different antagonists of S1PRs and inhibitors of different steps of the metabolic pathway of S1P production, we show that S1P and its receptors are involved in regulating neutrophil survival and resolution of inflammation in the pleural cavity. Given the role of the S1P-S1PR axis in resolution of inflammation, we sought to identify whether blockade at different levels of the sphingosine-1-phosphate synthesis pathway could affect neutrophil survival in vitro. Inhibitors of the S1P pathway were also able to induce human neutrophil apoptosis. In addition, blockade of S1P synthesis or its receptor facilitated the efferocytosis of apoptotic neutrophil. Taken together, our data demonstrate a fundamental role for S1P in regulating the outcome of inflammatory responses, and position S1P-S1PR axis as a potential target for treatment of neutrophilic inflammation.
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Affiliation(s)
- Denise A Perez
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Izabela Galvão
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rayssa M Athayde
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Barbara M Rezende
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana P Vago
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Julia D Silva
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Alesandra C Reis
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucas S Ribeiro
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - José H S Gomes
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo M Pádua
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernão C Braga
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lirlândia P Sousa
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro M Teixeira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vanessa Pinho
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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29
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Kurano M, Tsuneyama K, Morimoto Y, Nishikawa M, Yatomi Y. Apolipoprotein M suppresses the phenotypes of IgA nephropathy in hyper-IgA mice. FASEB J 2019; 33:5181-5195. [PMID: 30629456 DOI: 10.1096/fj.201801748r] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Because the association between sphingosine 1-phosphate (S1P)/apolipoprotein M (ApoM) and chronic kidney diseases has not been established, we investigated the involvement of S1P/ApoM in the phenotypes of IgA nephropathy in hyper-IgA (HIGA) mice. The overexpression of ApoM in adenoviral gene transfer ameliorated the phenotypes of IgA nephropathy in HIGA mice, whereas the knockdown of ApoM with siRNA caused deterioration. When ApoM-overexpressing HIGA mice were treated with VPC23019, an antagonist against S1P receptor 1 (S1P1) and 3 (S1P3), we observed that the protective effects of ApoM were reversed, whereas JTE013, an antagonist against S1P2, did not inhibit the effects. We also found that S1P bound to albumin accelerated the proliferation of MES13 cells and the fibrotic changes of HK2 cells, which were inhibited by JTE013, whereas S1P bound to ApoM suppressed these changes, which were inhibited by VPC23019. These results suggest that S1P bound to ApoM possesses properties protective against the phenotypes of IgA nephropathy through S1P1 and S1P3, whereas S1P bound to albumin exerts deteriorating effects through S1P2. ApoM may be useful as a therapeutic target to treat or retard the progression of IgA nephropathy.-Kurano, M., Tsuneyama, K., Morimoto, Y., Nishikawa, M., Yatomi, Y. Apolipoprotein M suppresses the phenotypes of IgA nephropathy in hyper-IgA mice.
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Affiliation(s)
- Makoto Kurano
- Department of Clinical Laboratory Medicine, The University of Tokyo, Tokyo, Japan; and
| | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Morimoto
- Department of Pathology and Laboratory Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masako Nishikawa
- Department of Clinical Laboratory Medicine, The University of Tokyo, Tokyo, Japan; and
| | - Yutaka Yatomi
- Department of Clinical Laboratory Medicine, The University of Tokyo, Tokyo, Japan; and
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30
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Wang E, He X, Zeng M. The Role of S1P and the Related Signaling Pathway in the Development of Tissue Fibrosis. Front Pharmacol 2019; 9:1504. [PMID: 30687087 PMCID: PMC6338044 DOI: 10.3389/fphar.2018.01504] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/10/2018] [Indexed: 12/12/2022] Open
Abstract
Tissue fibrosis, including pulmonary fibrosis, hepatic fibrosis, and cardiac fibrosis, is an important stage in the development of many diseases. It can lead to structural damage and dysfunction and even severe carcinogenesis or death. There is currently no effective method for the treatment of fibrosis. At present, the molecular mechanism of tissue fibrosis has not yet been fully elucidated, but many studies have demonstrated that it is involved in conveying the complex messages between fibroblasts and various cytokines. Sphingosine 1-phosphate (S1P) is a naturally bioactive sphingolipid. S1P and the related signaling pathways are important intracellular metabolic pathways involved in many life activities, including cell proliferation, differentiation, apoptosis, and cellular signal transduction. Increasing evidence suggests that S1P and its signaling pathways play an important role in the development of tissue fibrosis; however, the mechanisms of these effects have not yet been fully elucidated, and even the role of S1P and its signaling pathways are still controversial. This article focuses on the role of S1P and the related signaling pathways in the development of fibrosis of lung, liver, heart, and other tissues, with emphasis on the application of inhibitors of some of molecules in the pathway in clinical treatment of fibrosis diseases.
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Affiliation(s)
- Erjin Wang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xingxuan He
- Department of Human Genetics and Genomic Sciences, Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ming Zeng
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, China
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31
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Zhang Y, Chen X, Yuan L, Zhang Y, Wu J, Guo N, Chen X, Liu J. Down-regulation of IRAK1 attenuates podocyte apoptosis in diabetic nephropathy through PI3K/Akt signaling pathway. Biochem Biophys Res Commun 2018; 506:529-535. [DOI: 10.1016/j.bbrc.2018.09.175] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 09/28/2018] [Indexed: 01/01/2023]
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32
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Therapeutic potential of curcumin in diabetic complications. Pharmacol Res 2018; 136:181-193. [DOI: 10.1016/j.phrs.2018.09.012] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/19/2018] [Indexed: 12/22/2022]
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33
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Jin J, Lu Z, Li Y, Ru JH, Lopes-Virella MF, Huang Y. LPS and palmitate synergistically stimulate sphingosine kinase 1 and increase sphingosine 1 phosphate in RAW264.7 macrophages. J Leukoc Biol 2018; 104:843-853. [PMID: 29882996 PMCID: PMC6162112 DOI: 10.1002/jlb.3a0517-188rrr] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 05/15/2018] [Accepted: 05/18/2018] [Indexed: 01/28/2023] Open
Abstract
It has been well established that patients with diabetes or metabolic syndrome (MetS) have increased prevalence and severity of periodontitis, an oral infection initiated by bacteria and characterized by tissue inflammation and destruction. To understand the underlying mechanisms, we have shown that saturated fatty acid (SFA), which is increased in patients with type 2 diabetes or MetS, and LPS, an important pathogenic factor for periodontitis, synergistically stimulate expression of proinflammatory cytokines in macrophages by increasing ceramide production. However, the mechanisms by which increased ceramide enhances proinflammatory cytokine expression have not been well understood. Since sphingosine 1 phosphate (S1P) is a metabolite of ceramide and a bioactive lipid, we tested our hypothesis that stimulation of ceramide production by LPS and SFA facilitates S1P production, which contributes to proinflammatory cytokine expression. Results showed that LPS and palmitate, a major SFA, synergistically increased not only ceramide, but also S1P, and stimulated sphingosine kinase (SK) expression and membrane translocation in RAW264.7 macrophages. Results also showed that SK inhibition attenuated the stimulatory effect of LPS and palmitate on IL-6 secretion. Moreover, results showed that S1P enhanced the stimulatory effect of LPS and palmitate on IL-6 secretion. Finally, results showed that targeting S1P receptors using either S1P receptor antagonists or small interfering RNA attenuated IL-6 upregulation by LPS and palmitate. Taken together, this study demonstrated that LPS and palmitate synergistically stimulated S1P production and S1P in turn contributed to the upregulation of proinflammatory cytokine expression in macrophages by LPS and palmitate.
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Affiliation(s)
- Junfei Jin
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Zhongyang Lu
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
| | - Yanchun Li
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Ji Hyun Ru
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Maria F Lopes-Virella
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
| | - Yan Huang
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
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34
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Zhou L, Xu DY, Sha WG, Shen L, Lu GY. Long non-coding RNA MALAT1 interacts with transcription factor Foxo1 to regulate SIRT1 transcription in high glucose-induced HK-2 cells injury. Biochem Biophys Res Commun 2018; 503:849-855. [DOI: 10.1016/j.bbrc.2018.06.086] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 06/17/2018] [Indexed: 10/28/2022]
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Yu SMW, Bonventre JV. Acute Kidney Injury and Progression of Diabetic Kidney Disease. Adv Chronic Kidney Dis 2018; 25:166-180. [PMID: 29580581 DOI: 10.1053/j.ackd.2017.12.005] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/15/2017] [Accepted: 12/22/2017] [Indexed: 12/23/2022]
Abstract
Diabetic kidney disease, commonly termed diabetic nephropathy (DN), is the most common cause of end-stage kidney disease (ESKD) worldwide. The characteristic histopathology of DN includes glomerular basement membrane thickening, mesangial expansion, nodular glomerular sclerosis, and tubulointerstitial fibrosis. Diabetes is associated with a number of metabolic derangements, such as reactive oxygen species overproduction, hypoxic state, mitochondrial dysfunction, and inflammation. In the past few decades, our knowledge of DN has advanced considerably although much needs to be learned. The traditional paradigm of glomerulus-centered pathophysiology has expanded to the tubule-interstitium, the immune response and inflammation. Biomarkers of proximal tubule injury have been shown to correlate with DN progression, independent of traditional glomerular injury biomarkers such as albuminuria. In this review, we summarize mechanisms of increased susceptibility to acute kidney injury in diabetes mellitus and the roles played by many kidney cell types to facilitate maladaptive responses leading to chronic and end-stage kidney disease.
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Wan RJ, Li YH. MicroRNA‑146a/NAPDH oxidase4 decreases reactive oxygen species generation and inflammation in a diabetic nephropathy model. Mol Med Rep 2018; 17:4759-4766. [PMID: 29328400 DOI: 10.3892/mmr.2018.8407] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 03/30/2017] [Indexed: 11/06/2022] Open
Abstract
The present study investigated the role of microRNA (miR)‑146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK‑2 human kidney cell line were exposed to 45% D‑glucose as an in vitro DN model. Firstly, it was demonstrated that miR‑146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK‑2 cells, overexpression of miR‑146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule‑1 (VCAM‑1) and intracellular adhesion molecule‑1 (ICAM‑1) protein expression. Nacetylcysteine, a Nox4 inhibitor, was demonstrated to inhibit ROS generation, suppress VCAM‑1 and ICAM‑1 protein expression, and decrease oxidative stress and inflammation in HK‑2 cells following overexpression of miR‑146a. In conclusion, these results indicated that miR‑146a/Nox4 decreases ROS generation and inflammation and prevents DN. Therefore, miR‑146a may represent a novel anti‑inflammatory and ‑oxidative modulator of DN.
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Affiliation(s)
- Rong Jun Wan
- Department of Urology, Hospital of Tianjin Nankai, Nankai, Tianjin 300100, P.R. China
| | - Yue Hong Li
- Department of Urology, Hospital of Tianjin Nankai, Nankai, Tianjin 300100, P.R. China
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Schmidt KG, Herrero San Juan M, Trautmann S, Berninger L, Schwiebs A, Ottenlinger FM, Thomas D, Zaucke F, Pfeilschifter JM, Radeke HH. Sphingosine-1-Phosphate Receptor 5 Modulates Early-Stage Processes during Fibrogenesis in a Mouse Model of Systemic Sclerosis: A Pilot Study. Front Immunol 2017; 8:1242. [PMID: 29033951 PMCID: PMC5626866 DOI: 10.3389/fimmu.2017.01242] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/19/2017] [Indexed: 12/15/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare multi-organ autoimmune disease characterized by progressive skin fibrosis. Inflammation, type 2 immunity, and fibrogenic processes are involved in disease development and may be affected by sphingolipids. However, details about early-stage pathophysiological mechanisms and implicated mediators remain elusive. The sphingolipid sphingosine-1-phosphate (S1P) is elevated in the sera of SSc patients, and its receptor S1P5 is expressed in skin tissue. Nevertheless, almost nothing is known about the dermatological contribution of S1P5 to inflammatory and pro-fibrotic processes leading to the pathological changes seen in SSc. In this study, we observed a novel effect of S1P5 on the inflammatory processes during low-dose bleomycin (BLM)-induced fibrogenesis in murine skin. By comparing 2-week-treated skin areas of wild-type (WT) and S1P5-deficient mice, we found that S1P5 is important for the transcriptional upregulation of the Th2 characteristic transcription factor GATA-3 under treatment-induced inflammatory conditions, while T-bet (Th1) and FoxP3 (Treg) mRNA expression was regulated independently of S1P5. Additionally, treatment caused a regulation of S1P receptor 1 and S1P receptor 3 mRNA as well as a regulation of long-chain ceramide profiles, which both differ significantly between the genotypes. Despite S1P5-dependent differences regarding inflammatory processes, similar macroscopic evidence of fibrosis was detected in the skin histology of WT and S1P5-deficient mice after 4 weeks of subcutaneous BLM treatment. However, at the earlier 2-week point in time, the mRNA data of pro-collagen type 1 and SMAD7 indicate a pro-fibrotic S1P5 contribution in the applied SSc mouse model. In conclusion, we propose that S1P5 plays a role as a novel modulator during the early phase of BLM-caused fibrogenesis in murine skin. An immediate relationship between dermal S1P5 expression and fibrotic processes leading to skin alterations, such as formative for SSc pathogenesis, is indicated but should be studied more profound in further investigations. Therefore, this study is an initial step in understanding the role of S1P5-mediated effects during early stages of fibrogenesis, which may encourage the ongoing search for new therapeutic options for SSc patients.
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Affiliation(s)
- Katrin G Schmidt
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
| | - Martina Herrero San Juan
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
| | - Sandra Trautmann
- pharmazentrum frankfurt/ZAFES, Institute for Clinical Pharmacology, Hospital of the Goethe University, Frankfurt, Germany
| | - Lucija Berninger
- Dr Rolf M Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital, Friedrichsheim gGmbH, Frankfurt, Germany
| | - Anja Schwiebs
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
| | - Florian M Ottenlinger
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
| | - Dominique Thomas
- pharmazentrum frankfurt/ZAFES, Institute for Clinical Pharmacology, Hospital of the Goethe University, Frankfurt, Germany
| | - Frank Zaucke
- Dr Rolf M Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital, Friedrichsheim gGmbH, Frankfurt, Germany
| | - Josef M Pfeilschifter
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
| | - Heinfried H Radeke
- pharmazentrum frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Hospital of the Goethe University, Frankfurt, Germany
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Sphingosine kinase 1 mediates AGEs-induced fibronectin upregulation in diabetic nephropathy. Oncotarget 2017; 8:78660-78676. [PMID: 29108256 PMCID: PMC5667989 DOI: 10.18632/oncotarget.20205] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 07/12/2017] [Indexed: 12/17/2022] Open
Abstract
Activation of sphingosine kinase 1 (SphK1) signaling pathway mediates fibronectin (FN) upregulation in glomerular mesangial cells (GMCs) under high glucose (HG) condition. However, the roles of SphK1 in advanced glycation end products (AGEs)-induced DN have not been elucidated. Here we show that AGEs upregulated FN and SphK1 and SphK1 activity. Inhibition of SphK1 signaling attenuated AGEs-induced FN synthesis in GMCs. Inhibition of AGE receptor (RAGE) signaling reduced the upregulation of FN and SphK1 and SphK1 activity in GMCs induced by AGEs. Treatment of aminoguanidine ameliorates the renal injury and fibrosis in STZ-induced diabetic mice and attenuated SphK1 expression and activity in diabetic mouse kidneys. The renal injury and fibrosis in diabetic SphK1-/- mice was significantly attenuated than WT mice. Furthermore, AGEs upregulated SphK1 by reducing its degradation and prolonging its half-life. Conclusion: SphK1 mediates AGEs-induced FN synthesis in GMCs and diabetic mice under hyperglycemic condition.
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Saulnier-Blache JS, Feigerlova E, Halimi JM, Gourdy P, Roussel R, Guerci B, Dupuy A, Bertrand-Michel J, Bascands JL, Hadjadj S, Schanstra JP. Urinary lysophopholipids are increased in diabetic patients with nephropathy. J Diabetes Complications 2017; 31:1103-1108. [PMID: 28506691 DOI: 10.1016/j.jdiacomp.2017.04.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/10/2017] [Accepted: 04/29/2017] [Indexed: 12/25/2022]
Abstract
Diabetic nephropathy (DN) is a major cause of chronic kidney disease that frequently leads to end stage renal failure. Lysophosphatidic acid (LPA) and lysophosphatidylcholine (LPC) are lysophospholipid mediators shown to accumulate in kidney and to promote renal inflammation and tubulo-interstitial fibrosis in diabetic rodent models. Here we assessed whether LPA and LPC were associated to the development of nephropathy in diabetic human patients. Several molecular species of LPA and LPC were quantified by LC/MS-MS in urine and plasma from type 2 diabetic patients with (cases; n=41) or without (controls, n=41) nephropathy symptoms (micro/macro-albuminuria and eGFR<60ml/min/1.73m2). Cases and controls were matched for sex, age and diabetes duration. Six species were detected in urine for both LPA and LPC, LPA16:0, LPA20:4, LPC16:0, LPC18:0, LPC18:1, and LPC18:2 that were significantly more concentrated in cases than in controls. Total LPC and LPA (sum of detected species) were significantly and exclusively associated with albuminuria (P<0.0001 and P=0.0009 respectively) and were significantly higher in the 3rd when compared to the 1st albuminuria tertile in cases. Plasma lysophospholipids showed a different species profile urine and their concentrations were not different between cases and controls. In conclusion, urine concentration of lysophospholipids increases in diabetic patients with DN as the likely result of their co-excretion with albumin combined with possible local production by kidney. Because LPA and LPC are known to promote renal inflammation and tubulo-interstitial fibrosis, their increased production in DN could participate to the development of kidney damage associated with diabetes.
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Affiliation(s)
- Jean-Sébastien Saulnier-Blache
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, Toulouse, France; Université Toulouse III Paul-Sabatier, Toulouse, France.
| | - Eva Feigerlova
- CHU de Poitiers, Service d'Endocrinologie, Pole DUNE, 86021, Poitiers, France; Université de Poitiers, UFR Médecine Pharmacie, 86021, Poitiers, France; Inserm, CIC 1402 & U1082, 86021, Poitiers, France
| | - Jean Michel Halimi
- CHU de Tours, Service Néphrologie-immunologie clinique, 37000, Tours, France; Université François-Rabelais, EA4245, Inserm, 37000, Tours, France
| | - Pierre Gourdy
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, Toulouse, France; Université Toulouse III Paul-Sabatier, Toulouse, France; CHU de Toulouse, Service de Diabétologie, Maladies Métaboliques et Nutrition, 31059, Toulouse, France
| | - Ronan Roussel
- Université Paris Diderot, Sorbonne Paris Cité, 75013, Paris, France; Inserm, UMRS1138, Centre de Recherche des Cordeliers, 75006, Paris, France, AP-HP; Hôpital Bichat, Diabétologie, Endocrinologie Nutrition, DHU FIRE, 75018, Paris, France
| | - Bruno Guerci
- Université de Lorraine & CHRU de Nancy, Diabétologie, Maladies Métaboliques et Nutrition, 54511, Vandoeuvre lès Nancy
| | - Aude Dupuy
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, Toulouse, France; Metatoul-Lipidomic core facility, MetaboHub, Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, 2 Université Toulouse III Paul-Sabatier, Toulouse, France
| | - Justine Bertrand-Michel
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, Toulouse, France; Metatoul-Lipidomic core facility, MetaboHub, Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, 2 Université Toulouse III Paul-Sabatier, Toulouse, France
| | - Jean-Loup Bascands
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1188 - Université de La Réunion, France
| | - Samy Hadjadj
- CHU de Poitiers, Service d'Endocrinologie, Pole DUNE, 86021, Poitiers, France; Université de Poitiers, UFR Médecine Pharmacie, 86021, Poitiers, France; Inserm, CIC 1402 & U1082, 86021, Poitiers, France
| | - Joost P Schanstra
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1048, Institut of Cardiovascular and Metabolic Disease, Toulouse, France; Université Toulouse III Paul-Sabatier, Toulouse, France.
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40
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Wang Y, Aoki H, Yang J, Peng K, Liu R, Li X, Qiang X, Sun L, Gurley EC, Lai G, Zhang L, Liang G, Nagahashi M, Takabe K, Pandak WM, Hylemon PB, Zhou H. The role of sphingosine 1-phosphate receptor 2 in bile-acid-induced cholangiocyte proliferation and cholestasis-induced liver injury in mice. Hepatology 2017; 65:2005-2018. [PMID: 28120434 PMCID: PMC5444993 DOI: 10.1002/hep.29076] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/14/2016] [Accepted: 01/19/2017] [Indexed: 12/13/2022]
Abstract
UNLABELLED Bile duct obstruction is a potent stimulus for cholangiocyte proliferation, especially for large cholangiocytes. Our previous studies reported that conjugated bile acids (CBAs) activate the protein kinase B (AKT) and extracellular signal-regulated kinase 1 and 2 (ERK1/2) signaling pathways through sphingosine 1-phosphate receptor (S1PR) 2 in hepatocytes and cholangiocarcinoma cells. It also has been reported that taurocholate (TCA) promotes large cholangiocyte proliferation and protects cholangiocytes from bile duct ligation (BDL)-induced apoptosis. However, the role of S1PR2 in bile-acid-mediated cholangiocyte proliferation and cholestatic liver injury has not been elucidated. Here, we report that S1PR2 is the predominant S1PR expressed in cholangiocytes. Both TCA- and sphingosine-1-phosphate (S1P)-induced activation of ERK1/2 and AKT were inhibited by JTE-013, a specific antagonist of S1PR2, in cholangiocytes. In addition, TCA- and S1P-induced cell proliferation and migration were inhibited by JTE-013 and a specific short hairpin RNA of S1PR2, as well as chemical inhibitors of ERK1/2 and AKT in mouse cholangiocytes. In BDL mice, expression of S1PR2 was up-regulated in whole liver and cholangiocytes. S1PR2 deficiency significantly reduced BDL-induced cholangiocyte proliferation and cholestatic injury, as indicated by significant reductions in inflammation and liver fibrosis in S1PR2 knockout mice. Treatment of BDL mice with JTE-013 significantly reduced total bile acid levels in serum and cholestatic liver injury. CONCLUSION This study suggests that CBA-induced activation of S1PR2-mediated signaling pathways plays a critical role in obstructive cholestasis and may represent a novel therapeutic target for cholestatic liver diseases. (Hepatology 2017;65:2005-2018).
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Affiliation(s)
- Yongqing Wang
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University,Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Hiroaki Aoki
- Division of Surgical Oncology, Department of Surgery, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Jing Yang
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,China Pharmaceutical University
| | - Kesong Peng
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,College of Pharmaceutical Science, Wenzhou Medical University
| | - Runping Liu
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Xiaojiaoyang Li
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,China Pharmaceutical University
| | - Xiaoyan Qiang
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,China Pharmaceutical University
| | - Lixin Sun
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,China Pharmaceutical University
| | - Emily C Gurley
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Guanhua Lai
- Department of Pathology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia, 23298
| | | | - Guang Liang
- College of Pharmaceutical Science, Wenzhou Medical University
| | - Masayuki Nagahashi
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata City 951-8510
| | - Kazuaki Takabe
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,Breast Surgery, Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, New York, 14263
| | - William M Pandak
- McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Phillip B. Hylemon
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, Virginia, 23298
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, 23298,McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, Virginia, 23298,College of Pharmaceutical Science, Wenzhou Medical University
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41
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Hsieh LTH, Nastase MV, Roedig H, Zeng-Brouwers J, Poluzzi C, Schwalm S, Fork C, Tredup C, Brandes RP, Wygrecka M, Huwiler A, Pfeilschifter J, Schaefer L. Biglycan- and Sphingosine Kinase-1 Signaling Crosstalk Regulates the Synthesis of Macrophage Chemoattractants. Int J Mol Sci 2017; 18:ijms18030595. [PMID: 28282921 PMCID: PMC5372611 DOI: 10.3390/ijms18030595] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 12/14/2022] Open
Abstract
In its soluble form, the extracellular matrix proteoglycan biglycan triggers the synthesis of the macrophage chemoattractants, chemokine (C-C motif) ligand CCL2 and CCL5 through selective utilization of Toll-like receptors (TLRs) and their adaptor molecules. However, the respective downstream signaling events resulting in biglycan-induced CCL2 and CCL5 production have not yet been defined. Here, we show that biglycan stimulates the production and activation of sphingosine kinase 1 (SphK1) in a TLR4- and Toll/interleukin (IL)-1R domain-containing adaptor inducing interferon (IFN)-β (TRIF)-dependent manner in murine primary macrophages. We provide genetic and pharmacological proof that SphK1 is a crucial downstream mediator of biglycan-triggered CCL2 and CCL5 mRNA and protein expression. This is selectively driven by biglycan/SphK1-dependent phosphorylation of the nuclear factor NF-κB p65 subunit, extracellular signal-regulated kinase (Erk)1/2 and p38 mitogen-activated protein kinases. Importantly, in vivo overexpression of soluble biglycan causes Sphk1-dependent enhancement of renal CCL2 and CCL5 and macrophage recruitment into the kidney. Our findings describe the crosstalk between biglycan- and SphK1-driven extracellular matrix- and lipid-signaling. Thus, SphK1 may represent a new target for therapeutic intervention in biglycan-evoked inflammatory conditions.
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Affiliation(s)
- Louise Tzung-Harn Hsieh
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Madalina-Viviana Nastase
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
- National Institute for Chemical-Pharmaceutical Research and Development, 112 Vitan Avenue, Bucharest 031299, Romania.
| | - Heiko Roedig
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Jinyang Zeng-Brouwers
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Chiara Poluzzi
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Stephanie Schwalm
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Christian Fork
- Institut für Kardiovaskulare Physiologie, Klinikum der Goethe-Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Claudia Tredup
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Ralf P Brandes
- Institut für Kardiovaskulare Physiologie, Klinikum der Goethe-Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Malgorzata Wygrecka
- Department of Biochemistry, Faculty of Medicine, Universities of Giessen and Marburg Lung Center, Friedrichstrasse 24, Giessen 35392, Germany.
| | - Andrea Huwiler
- Institute of Pharmacology, University of Bern, Inselspital INO-F, Bern CH-3010, Switzerland.
| | - Josef Pfeilschifter
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
| | - Liliana Schaefer
- Pharmazentrum Frankfurt, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe Universität, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
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42
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Schnute ME, McReynolds MD, Carroll J, Chrencik J, Highkin MK, Iyanar K, Jerome G, Rains JW, Saabye M, Scholten JA, Yates M, Nagiec MM. Discovery of a Potent and Selective Sphingosine Kinase 1 Inhibitor through the Molecular Combination of Chemotype-Distinct Screening Hits. J Med Chem 2017; 60:2562-2572. [DOI: 10.1021/acs.jmedchem.7b00070] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | | | - Jill Chrencik
- Medicine
Design, Pfizer, Groton, Connecticut 06340, United States
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43
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Ng ML, Wadham C, Sukocheva OA. The role of sphingolipid signalling in diabetes‑associated pathologies (Review). Int J Mol Med 2017; 39:243-252. [PMID: 28075451 PMCID: PMC5358714 DOI: 10.3892/ijmm.2017.2855] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/14/2016] [Indexed: 02/05/2023] Open
Abstract
Sphingosine kinase (SphK) is an important signalling enzyme that catalyses the phosphorylation of sphingosine (Sph) to form sphingosine‑1‑phosphate (S1P). The multifunctional lipid, S1P binds to a family of five G protein-coupled receptors (GPCRs). As an intracellular second messenger, S1P activates key signalling cascades responsible for the maintenance of sphingolipid metabolism, and has been implicated in the progression of cancer, and the development of other inflammatory and metabolic diseases. SphK and S1P are critical molecules involved in the regulation of various cellular metabolic processes, such as cell proliferation, survival, apoptosis, adhesion and migration. There is strong evidence supporting the critical roles of SphK and S1P in the progression of diabetes mellitus, including insulin sensitivity and insulin secretion, pancreatic β‑cell apoptosis, and the development of diabetic inflammatory state. In this review, we summarise the current state of knowledge for SphK/S1P signalling effects, associated with the development of insulin resistance, pancreatic β‑cell death and the vascular complications of diabetes mellitus.
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Affiliation(s)
- Mei Li Ng
- Centenary Institute of Cancer Medicine and Cell Biology, Sydney, NSW 2050
- Sydney Medical School, Faculty of Medicine, University of Sydney, Sydney, NSW 2006, Australia
- Advanced Medical and Dental Institute, University Sains Malaysia, Kepala Batas, Penang 13200, Malaysia
- Correspondence to: Dr Mei Li Ng, Advanced Medical and Dental Institute, University Sains Malaysia, No. 1-8 (Lot 8), Persiaran Seksyen 4, 1, Bandar Putra Bertam, Kepala Batas, Penang 13200, Malaysia, E-mail:
| | - Carol Wadham
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales, Randwick, NSW 2031
| | - Olga A. Sukocheva
- School of Social Health Sciences, Flinders University, Bedford Park, SA 5042, Australia
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Bajwa A, Huang L, Kurmaeva E, Ye H, Dondeti KR, Chroscicki P, Foley LS, Balogun ZA, Alexander KJ, Park H, Lynch KR, Rosin DL, Okusa MD. Sphingosine Kinase 2 Deficiency Attenuates Kidney Fibrosis via IFN- γ. J Am Soc Nephrol 2016; 28:1145-1161. [PMID: 27799486 DOI: 10.1681/asn.2016030306] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 09/11/2016] [Indexed: 12/17/2022] Open
Abstract
Maladaptive repair after AKI may lead to progressive fibrosis and decline in kidney function. Sphingosine 1-phosphate has an important role in kidney injury and pleiotropic effects in fibrosis. We investigated the involvement of sphingosine kinase 1 and 2 (SphK1 and SphK2), which phosphorylate sphingosine to produce sphingosine 1-phosphate, in kidney fibrosis induced by folic acid (FA) or unilateral ischemia-reperfusion injury. Analysis of Masson trichrome staining and fibrotic marker protein and mRNA expression 14 days after AKI revealed that wild-type (WT) and Sphk1-/- mice exhibited more kidney fibrosis than Sphk2-/- mice. Furthermore, kidneys of FA-treated WT and Sphk1-/- mice had greater immune cell infiltration and expression of fibrotic and inflammatory markers than kidneys of FA-treated Sphk2-/- mice. In contrast, kidneys of Sphk2-/- mice exhibited greater expression of Ifng and IFN-γ-responsive genes (Cxcl9 and Cxcl10) than kidneys of WT or Sphk1-/- mice did at this time point. Splenic T cells from untreated Sphk2-/- mice were hyperproliferative and produced more IFN-γ than did those of WT or Sphk1-/- mice. IFN-γ blocking antibody administered to Sphk2-/- mice or deletion of Ifng (Sphk2-/-Ifng-/- mice) blocked the protective effect of SphK2 deficiency in fibrosis. Moreover, adoptive transfer of Sphk2-/- (but not Sphk2-/-Ifng-/- ) CD4 T cells into WT mice blocked FA-induced fibrosis. Finally, a selective SphK2 inhibitor blocked FA-induced kidney fibrosis in WT mice. These studies demonstrate that SphK2 inhibition may serve as a novel therapeutic approach for attenuating kidney fibrosis.
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Affiliation(s)
- Amandeep Bajwa
- Division of Nephrology, .,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Liping Huang
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Elvira Kurmaeva
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Hong Ye
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Krishna R Dondeti
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Piotr Chroscicki
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Leah S Foley
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Z Ayoade Balogun
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Kyle J Alexander
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Hojung Park
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
| | - Kevin R Lynch
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia
| | - Diane L Rosin
- Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and .,Department of Pharmacology, University of Virginia, Charlottesville, Virginia
| | - Mark D Okusa
- Division of Nephrology.,Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, and
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Chou YJ, Kan WC, Chang CM, Peng YJ, Wang HY, Yu WC, Cheng YH, Jhang YR, Liu HW, Chuu JJ. Renal Protective Effects of Low Molecular Weight of Inonotus obliquus Polysaccharide (LIOP) on HFD/STZ-Induced Nephropathy in Mice. Int J Mol Sci 2016; 17:ijms17091535. [PMID: 27649140 PMCID: PMC5037810 DOI: 10.3390/ijms17091535] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 12/20/2022] Open
Abstract
Diabetic nephropathy (DN) is the leading cause of end-stage renal disease in diabetes mellitus. Oxidative stress, insulin resistance and pro-inflammatory cytokines have been shown to play an important role in pathogeneses of renal damage on type 2 diabetes mellitus (DM). Inonotus obliquus (IO) is a white rot fungus that belongs to the family Hymenochaetaceae; it has been used as an edible mushroom and exhibits many biological activities including anti-tumor, anti-oxidant, anti-inflammatory and anti-hyperglycemic properties. Especially the water-soluble Inonotus obliquus polysaccharides (IOPs) have been previously reported to significantly inhibit LPS-induced inflammatory cytokines in mice and protect from streptozotocin (STZ)-induced diabetic rats. In order to identify the nephroprotective effects of low molecular weight of IOP fraction (LIOP), from the fruiting bodies of Inonotus obliquus, high-fat diet (HFD) plus STZ-induced type 2-like diabetic nephropathy C57BL/6 mice were investigated in this study. Our data showed that eight weeks of administration of 10–100 kDa, LIOP (300 mg/kg) had progressively increased their sensitivity to glucose (less insulin tolerance), reduced triglyceride levels, elevated the HDL/LDL ratio and decreased urinary albumin/creatinine ratio(ACR) compared to the control group. By pathological and immunohistochemical examinations, it was indicated that LIOP can restore the integrity of the glomerular capsules and increase the numbers of glomerular mesangial cells, associated with decreased expression of TGF-β on renal cortex in mice. Consistently, three days of LIOP (100 μg/mL) incubation also provided protection against STZ + AGEs-induced glucotoxicity in renal tubular cells (LLC-PK1), while the levels of NF-κB and TGF-β expression significantly decreased in a dose-dependent manner. Our findings demonstrate that LIOP treatment could ameliorate glucolipotoxicity-induced renal fibrosis, possibly partly via the inhibition of NF-κB/TGF-β1 signaling pathway in diabetic nephropathy mice.
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Affiliation(s)
- Yen-Jung Chou
- Department of Traditional Chinese Medicine, En Chu Kong Hospital, New Taipei City 237, Taiwan.
| | - Wei-Chih Kan
- Division of Nephrology, Department of Medicine; Chi-Mei Medical Center, Tainan 710, Taiwan.
- Department of Biological Science and Technology, Chung Hwa University of Medical Technology, Tainan 717, Taiwan.
| | - Chieh-Min Chang
- Department of Traditional Chinese Medicine, En Chu Kong Hospital, New Taipei City 237, Taiwan.
| | - Yi-Jen Peng
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan.
| | - Hsien-Yi Wang
- Division of Nephrology, Department of Medicine; Chi-Mei Medical Center, Tainan 710, Taiwan.
- Department of Sports Management, College of Leisure and Recreation Management, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Wen-Chun Yu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan.
| | - Yu-Hsuan Cheng
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
| | - Yu-Rou Jhang
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
| | - Hsia-Wei Liu
- Department of Life Science, Fu Jen Catholic University, New Taipei City 242, Taiwan.
| | - Jiunn-Jye Chuu
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
- Pharmacy, Wei Gong Memorial Hospital, Miaoli 351, Taiwan.
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Chen C, Huang K, Hao J, Huang J, Yang Z, Xiong F, Liu P, Huang H. Polydatin attenuates AGEs-induced upregulation of fibronectin and ICAM-1 in rat glomerular mesangial cells and db/db diabetic mice kidneys by inhibiting the activation of the SphK1-S1P signaling pathway. Mol Cell Endocrinol 2016; 427:45-56. [PMID: 26948947 DOI: 10.1016/j.mce.2016.03.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/28/2016] [Accepted: 03/03/2016] [Indexed: 01/23/2023]
Abstract
We previously demonstrated that activation of sphingosine kinase 1 (SphK1)- sphingosine 1- phosphate (S1P) signaling pathway by high glucose (HG) plays a pivotal role in increasing the expression of fibronectin (FN), an important fibrotic component, by promoting the DNA-binding activity of transcription factor activator protein 1 (AP-1) in glomerular mesangial cells (GMCs) under diabetic conditions. As a multi-target anti-oxidative drug, polydatin (PD) has been shown to have renoprotective effects on experimental diabetes. However, whether PD could resist diabetic nephropathy (DN) by regulating SphK1-S1P signaling pathway needs further investigation. Here, we found that PD significantly reversed the upregulated FN and ICAM-1 expression in GMCs exposed to AGEs. Simultaneously, PD dose-dependently inhibited SphK1 levels at the protein expression and kinase activity and attenuated S1P production under AGEs treatment conditions. In addition, PD reduced SphK activity in GMCs transfected with wild-type SphK(WT) plasmid and significantly suppressed SphK1-mediated increase of FN and ICAM-1 levels under normal conditions. Furthermore, we found that the AGEs-induced upregulation of phosphorylation of c-Jun at Ser63 and Ser73 and c-Fos at Ser32, DNA-binding activity and transcriptional activity of AP-1 were blocked by PD. In comparison with db/db model group, PD treatment suppressed SphK1 levels (mRNA, protein expression, and activity) and S1P production, reversed the upregulation of FN, ICAM-1, c-Jun, and c-Fos in the kidney tissues of diabetic mice, and finally ameliorated renal injury in db/db mice. These findings suggested that the downregulation of SphK1-S1P signaling pathway is probably a novel mechanism by which PD suppressed AGEs-induced FN and ICAM-1 expression and improved renal dysfunction of diabetic models.
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Affiliation(s)
- Cheng Chen
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Kaipeng Huang
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jie Hao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Junying Huang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhiying Yang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Fengxiao Xiong
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Peiqing Liu
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Heqing Huang
- Laboratory of Pharmacology & Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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Lycium barbarum Polysaccharide Mediated the Antidiabetic and Antinephritic Effects in Diet-Streptozotocin-Induced Diabetic Sprague Dawley Rats via Regulation of NF-κB. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3140290. [PMID: 27200371 PMCID: PMC4856889 DOI: 10.1155/2016/3140290] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 04/06/2016] [Indexed: 12/21/2022]
Abstract
Lycium barbarum, extensively utilized as a medicinal plant in China for years, exhibits antitumor, immunoregulative, hepatoprotective, and neuroprotective properties. The present study aims to investigate the hyperglycemic and antidiabetic nephritic effects of polysaccharide which is separated from Lycium barbarum (LBPS) in high-fat diet-streptozotocin- (STZ-) induced rat models. The reduced bodyweight and enhanced blood glucose concentration in serum were observed in diabetic rats, and they were significantly normalized to the healthy level by 100 mg/kg of metformin (Met) and LBPS at doses of 100, 250, and 500 mg/kg. LBPS inhibited albuminuria and blood urea nitrogen concentration and serum levels of inflammatory factors including IL-2, IL-6, TNF-α, IFN-α, MCP-1, and ICAM-1 compared with diabetic rats, and it indicates the protection on renal damage. Furthermore, the activities of SOD and GSH-Px in serum were enhanced strikingly by LBPS which suggests its antioxidation effects. LBPS, compared with nontreated diabetic rats, inhibited the expression of phosphor-nuclear factors kappa B (NF-κB) and inhibitor kappa B alpha in kidney tissues. Collectively, LBPS possesses antidiabetic and antinephritic effects related to NF-κB-mediated antioxidant and antiinflammatory activities.
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