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TGF- beta AND nephropathy

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https://www.readbyqxmd.com/read/28805484/disparate-phospho-smad2-levels-in-advanced-type-2-diabetes-patients-with-diabetic-nephropathy-and-early-experimental-db-db-mouse-model
#1
Lise Høj Thomsen, Morten Fog-Tonnesen, Lisbeth Nielsen Fink, Jenny Norlin, Amaya García de Vinuesa, Troels Krarup Hansen, Emile de Heer, Peter Ten Dijke, Alexander Rosendahl
Uncontrolled activation of transforming growth factor beta (TGF-β) family members is hypothesized to participate in type 2 diabetes (T2D) dependent diabetic nephropathy (DN). We evaluated and compared downstream activation of the Smad2-signaling pathway in kidney samples from T2D patients to kidneys from the T2D model of leptin receptor deficient db/db mouse. Furthermore, expression of TGF-β family members was evaluated to elucidate molecular mechanisms in the mouse model. Kidney samples from patients with advanced stages of DN showed elevated pSmad2 staining whereas db/db mouse kidneys surprisingly showed a decrease in pSmad2 in the tubular compartment...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28719898/role-of-mir-155-signal-pathway-in-regulating-podocyte-injury-induced-by-tgf-%C3%AE-1
#2
Xu Lin, Xintng Zhen, Haiting Huang, Haohao Wu, Yanwu You, Pengwei Guo, Xiangjun Gu, Fafen Yang
BACKGROUND/AIMS: Transforming growth factor beta 1 (TGF-β1) plays a critical role in the pathogenesis of glomerulosclerosis. The purpose of this study was to examine the effects of inhibition of miR-155 on podocyte injury induced by TGF-β1 and to determine further molecular mediators involved in the effects of miR-155. METHODS: Conditionally immortalized podocytes were cultured in vitro and they were divided into four groups: control; TGF-β1 treatment; TGF-β1 with miR-155 knockdown [using antisense oligonucleotides against miR-155 (ASO-miR-155)] and TGF-β1 with negative control antisense oligonucleotides (ASO-NC)...
July 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28588674/resveratrol-ameliorates-diabetic-nephropathy-in-rats-through-negative-regulation-of-the-p38-mapk-tgf-%C3%AE-1-pathway
#3
Yuan Qiao, Ke Gao, Yangwei Wang, Xueliang Wang, Bo Cui
Resveratrol (RSV) has been shown to have a renoprotective effect against diabetic nephropathy, but the underlying mechanisms of this have not been fully elucidated. The aim of the current study was to explore the mechanisms responsible for the therapeutic effects of RSV in rat mesangial cells in vitro and in a rat model of diabetic nephropathy. The viability of CRL-2573 rat mesangial cells and their expression levels of p38, phosphorylated (p)-p38, transforming growth factor beta 1 (TGF-β1) and fibronectin were assessed in response to treatment with high glucose, with or without RSV...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28403088/changes-of-transforming-growth-factor-beta-1-in-patients-with-type-2-diabetes-and-diabetic-nephropathy-a-prisma-compliant-systematic-review-and-meta-analysis
#4
REVIEW
Yong-Chao Qiao, Yin-Ling Chen, Yan-Hong Pan, Wei Ling, Fang Tian, Xiao-Xi Zhang, Hai-Lu Zhao
BACKGROUND: The existing evidence indicates increased levels of transforming growth factor beta 1 (TGF-β1) in patients with type 2 diabetes mellitus (T2DM) and those with type 2 diabetic nephropathy (T2DN); yet no meta-analysis displays a reliable result. Here we conducted a meta-analysis to evaluate characteristic changes of TGF-β1 in T2DM and diabetic nephropathy. METHODS: A systematic search was conducted for eligible studies, which reported the association of TGF-β1 withT2DM and T2DN patients, in PubMed, Wangfang, Chinese-Cqvip, and China National Knowledge Infrastructure database, from February 1, 1991 to December 15, 2015...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28339909/il-17-and-cd40-ligand-synergistically-stimulate-the-chronicity-of-diabetic-nephropathy
#5
Huey-Liang Kuo, Chiu-Ching Huang, Tze-Yi Lin, Ching-Yuang Lin
Background: Early stages of diabetic nephropathy (DN) are characterized by an influx of inflammatory cells. Interactions between infiltrating T cells and podocytes may play an important role in the ongoing inflammatory response and remodelling. The aim of this study was to explore the role of IL-17 and CD40 ligand (CD40L) in DN. Methods: The study design involved a case series. Kidney biopsy samples of 69 patients with type 2 diabetes were assessed for the presence of CD4 +  IL-17 +  T cells...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339906/interstitial-fibrosis-scored-on-whole-slide-digital-imaging-of-kidney-biopsies-is-a-predictor-of-outcome-in-proteinuric-glomerulopathies
#6
Laura H Mariani, Sebastian Martini, Laura Barisoni, Pietro A Canetta, Jonathan P Troost, Jeffrey B Hodgin, Matthew Palmer, Avi Z Rosenberg, Kevin V Lemley, Hui-Ping Chien, Jarcy Zee, Abigail Smith, Gerald B Appel, Howard Trachtman, Stephen M Hewitt, Matthias Kretzler, Serena M Bagnasco
Background.: Interstitial fibrosis (IF), tubular atrophy (TA) and interstitial inflammation (II) are known determinants of progression of renal disease. Standardized quantification of these features could add value to current classification of glomerulopathies. Methods.: We studied 315 participants in the Nephrotic Syndrome Study Network (NEPTUNE) study, including biopsy-proven minimal change disease (MCD = 98), focal segmental glomerulosclerosis (FSGS = 121), membranous nephropathy (MN = 59) and IgA nephropathy (IgAN = 37)...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28319415/transforming-growth-factor-beta-1-an-important-biomarker-for-developing-cardiovascular-diseases-in-chronic-renal-failure
#7
E Avci, G Alp Avci, B Ozcelik, S Coskun Cevher, M Suicmez
OBJECTIVE: Our study focuses on the determination and evaluation of TGF-β1 levels of patients receiving hemodialysis treatment because of chronic renal failure. BACKGROUND: Chronic renal failure, characterized by irreversible loss of renal function, is a major public health problem in the world. Transforming growth factor-beta is a multifunctional cytokine involved in the cellular growth, differentiation, migration, apoptosis and immune regulation. Among the three TGF-β isoforms, TGF-β1 plays a key role in the pathogenesis of renal diseases...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28245472/role-of-protease-activated-receptor-2-in-regulating-focal-segmental-glomerulosclerosis
#8
Yongjun Wang, Yanfa He, Mingzheng Wang, Pei Lv, Jianzhen Liu, Junxia Wang
Background /Aims: The underlying mechanisms leading to focal segmental glomerulosclerosis (FSGS) are lacking. In this report, we examined the role of protease-activated receptors (PARs) subtype PAR2 and its downstream signals in regulating the pathophysiological process of FSGS. METHODS: Nephropathy was induced by intravenous injections of adriamycin (ADR) in rats to study FSGS. Western Blot analysis and ELISA were employed to determine the protein expression levels of PAR2 and its downstream signal pathways as well as the levels of PICs...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214865/inhibition-of-trpc6-signal-pathway-alleviates-podocyte-injury-induced-by-tgf-%C3%AE-1
#9
Haiting Huang, Yanwu You, Xu Lin, Chunrong Tang, Xiangjun Gu, Meiying Huang, Youling Qin, Junhua Tan, Feifan Huang
BACKGROUND/AIMS: Transforming growth factor beta 1 (TGF-β1) plays a critical role in the pathogenesis of glomerulosclerosis. The purpose of this study was to examine the effects of inhibition of transient receptor potential cation channel C6 (TRPC6) on podocyte injury induced by TGF-β1 via nephrin and desmin mechanisms. METHODS: A rat model of nephropathy was first induced by intravenous injections of adriamycin to determine TRPC6 signal pathway engaged in glomerulosclerosis in vivo...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28123632/effects-of-averrhoa-carambola-l-oxalidaceae-juice-mediated-on-hyperglycemia-hyperlipidemia-and-its-influence-on-regulatory-protein-expression-in-the-injured-kidneys-of-streptozotocin-induced-diabetic-mice
#10
Hoa Thi Thai Pham, Wansu Huang, Chuangye Han, Juman Li, Qiuqiao Xie, Jinbin Wei, Xiaohui Xu, Zefeng Lai, Xiang Huang, Renbin Huang, Qingwei Wen
Recently, many reports have shown that Averrhoa carambola L. (Oxalidaceae) juice (EACJ) could reduce blood glucose in humans. However, its mechanisms have not been well explored; therefore, our study aimed to investigate the beneficial effects of EACJ on hyperglycemia, hyperlipidemia and renal injury in streptozotocin (STZ)-induced diabetic mice. Those mice were injected with STZ via the tail vein (120 mg/kg body weight) and were identified as diabetic mice when the level of blood glucose was ≥ 11.1 mmol/L...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28111218/betanin-isolated-from-fruits-of-opuntia-elatior-mill-attenuates-renal-fibrosis-in-diabetic-rats-through-regulating-oxidative-stress-and-tgf-%C3%AE-pathway
#11
COMPARATIVE STUDY
Brijesh Sutariya, Madhusudan Saraf
ETHNOPHARMACOLOGICAL RELEVANCE: The fruits of Opuntia elatior Mill are being used traditionally in different disease condition like diabetes, obesity, asthma, inflammatory disorders, and anemia. Betanin, a compound isolated from fruits of Opuntia elatior Mill has potent anti-oxidative and anti-inflammatory activity. Recent study from our lab indicated the protective effect of betanin against high glucose induced rat renal epithelial cell fibrosis and matrix accumulation, major features of diabetic nephropathy (DN)...
February 23, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28060893/positioning-of-tacrolimus-for-the-treatment-of-diabetic-nephropathy-based-on-computational-network-analysis
#12
Constantin Aschauer, Paul Perco, Andreas Heinzel, Judith Sunzenauer, Rainer Oberbauer
OBJECTIVE: To evaluate tacrolimus as therapeutic option for diabetic nephropathy (DN) based on molecular profile and network-based molecular model comparisons. MATERIALS AND METHODS: We generated molecular models representing pathophysiological mechanisms of DN and tacrolimus mechanism of action (MoA) based on literature derived data and transcriptomics datasets. Shared enriched molecular pathways were identified based on both model datasets. A newly generated transcriptomics dataset studying the effect of tacrolimus on mesangial cells in vitro was added to identify mechanisms in DN pathophysiology...
2017: PloS One
https://www.readbyqxmd.com/read/27988328/emodin-self-emulsifying-platform-ameliorates-the-expression-of-fn-icam-1-and-tgf-%C3%AE-1-in-ages-induced-glomerular-mesangial-cells-by-promoting-absorption
#13
Jiani Huang, Wenyan Gong, Zhiquan Chen, Junying Huang, Qiuhong Chen, Heqing Huang, Chunshun Zhao
Emodin, a potential anti-diabetic nephropathy agent, is limited by its oral use due to the poor water solubility. The present study aimed to enhance the absorption and the suppressive effects of emodin on renal fibrosis by developing a self-microemulsifying drug delivery system (SMEDDS). Solubility studies, compatibility tests, pseudo-ternary phase diagrams analysis and central composite design were carried out to obtain the optimized formulation. The average droplet size of emodin-loaded SMEDDS was about 18...
March 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27976371/apolipoprotein-c-i-plays-a-role-in-the-pathogenesis-of-glomerulosclerosis
#14
Pascal Bus, Louise Pierneef, Rosalie Bor, Ron Wolterbeek, Leendert A van Es, Patrick Cn Rensen, Emile de Heer, Louis M Havekes, Jan A Bruijn, Jimmy F Berbée, Hans J Baelde
Diabetic nephropathy is the leading cause of end-stage renal disease. Diabetic patients have increased plasma concentrations of apolipoprotein C-I (apoCI), and meta-analyses found that a polymorphism in APOC1 is associated with an increased risk of developing nephropathy. To investigate whether overexpressing apoCI contributes to the development of kidney damage, we studied renal tissue and peritoneal macrophages from APOC1 transgenic (APOC1-tg) mice and wild-type littermates. In addition, we examined renal material from autopsied diabetic patients with and without diabetic nephropathy and from autopsied control subjects...
December 15, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27882817/h2s-improves-renal-fibrosis-in-stz-induced-diabetic-rats-by-ameliorating-tgf-%C3%AE-1-expression
#15
Yan Li, Lin Li, Ou Zeng, Jun Mao Liu, Jun Yang
Nephropathy develops in many patients with type 1 diabetes mellitus (T1DM). However, the specific mechanisms and therapies remain unclear. For this purpose we investigated the effects of hydrogen sulfide (H2S) on renal fibrosis in streptozotocin (STZ) induced diabetic rats and its underlying mechanisms. Experimental rats were randomly divided into four groups: Control group (normal rats), DM group (diabetes rats), DM + NaHS group [diabetes rats treated with sodium hydrosulfide (NaHS)], and NaHS group (normal rats treated with NaHS)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/27826032/sterol-regulatory-element-binding-protein-srebp-1-is-a-novel-regulator-of-the-transforming-growth-factor-tgf-%C3%AE-receptor-i-t%C3%AE-ri-through-exosomal-secretion
#16
Richard Van Krieken, Guang Chen, Bo Gao, Jolene Read, Hassan A Al Saleh, Renzhong Li, Khalid Al-Nedawi, Joan C Krepinsky
Accumulation of matrix in the glomerulus is a classic hallmark of diabetic nephropathy. The profibrotic cytokine transforming growth factor beta 1 (TGF-β1) plays a central role in the development of glomerular sclerosis. Recent studies have demonstrated that the transcription factor sterol regulatory element binding protein (SREBP)-1 is an important regulator of glomerular sclerosis through both induction of TGF-β1 as well as facilitation of its signaling. Here we have identified that SREBP-1 is also a novel regulator of TGF-β receptor I (TβRI) expression in kidney mesangial cells...
January 2017: Cellular Signalling
https://www.readbyqxmd.com/read/27679717/cardiovascular-renal-complications-and-the-possible-role-of-plasminogen-activator-inhibitor-a-review
#17
John A D'Elia, George Bayliss, Ray E Gleason, Larry A Weinrauch
Since angiotensin increases the expression of plasminogen activator inhibitor (PAI), mechanisms associated with an actively functioning renin-angiotensin-aldosterone system can be expected to be associated with increased PAI-1 expression. These mechanisms are present not only in common conditions resulting in glomerulosclerosis associated with aging, diabetes or genetic mutations, but also in autoimmune disease (like scleroderma and lupus), radiation injury, cyclosporine toxicity, allograft nephropathy and ureteral obstruction...
October 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27648419/different-risk-indictors-of-diabetic-nephropathy-in-transforming-growth-factor-beta1-t869c-cc-ct-genotype-and-tt-genotype
#18
Xin Mou, Yinghui Liu, Diyi Zhou, Yongbin Hu, Guoling Ma, Chengmin Shou, Jiawei Chen, Danyang Zhou
BACKGROUND: Transforming growth factor-beta 1(TGF-β1) T869C (rs1800470, the same below) gene polymorphism is notably relative with the development of Diabetic Nephropathy (DN), and CC/CT genotype diabetic have higher frequency of than TT genotype diabetic. To find out individual risk factors in the two genotypes especially in susceptible genotype could provide more efficient and targeted prevention. METHODS: This was a prospective cohort study. A total of 251 type 2 diabetes mellitus (T2DM) patients [53...
June 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/27612855/anti-diabetic-and-renoprotective-effects-of-aliskiren-in-streptozotocin-induced-diabetic-nephropathy-in-female-rats
#19
COMPARATIVE STUDY
Amal M Mahfoz, Hekma A Abd El-Latif, Lamiaa A Ahmed, Nahed M Hassanein, Afaf A Shoka
Since chronic kidney disease due to diabetic nephropathy (DN) is becoming an ever larger health burden worldwide, more effective therapies are desperately needed. In the present study, the anti-diabetic and renoprotective effects of aliskiren have been evaluated in streptozotocin (STZ)-induced DN in rats. DN was induced by a single intraperitoneal injection of STZ (65 mg/kg). Three weeks after STZ, rats were divided into four groups; normal, diabetic, diabetic treated with gliclazide (10 mg/kg/day) for 1 month, and diabetic treated with aliskiren (50 mg/kg/day) for 1 month...
December 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27602565/gsta3-attenuates-renal-interstitial-fibrosis-by-inhibiting-tgf-beta-induced-tubular-epithelial-mesenchymal-transition-and-fibronectin-expression
#20
Yun Xiao, Jishi Liu, Yu Peng, Xuan Xiong, Ling Huang, Huixiang Yang, Jian Zhang, Lijian Tao
Tubular epithelial-mesenchymal transition (EMT) has been widely accepted as the underlying mechanisms of renal interstitial fibrosis (RIF). The production of reactive oxygen species (ROS) plays a vital role in tubular EMT process. The purpose of this study was to investigate the involved molecular mechanisms in TGF-beta-induced EMT and identify the potential role of glutathione S-transferase alpha 3 (GSTA3) in this process. The iTRAQ screening was performed to identify protein alterations of the rats underwent unilateral-ureteral obstruction (UUO)...
2016: PloS One
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