scholarly journals Protective effects of quercetin and hyperoside on renal fibrosis in rats with unilateral ureteral obstruction

2014 ◽  
Vol 8 (3) ◽  
pp. 727-730 ◽  
Author(s):  
YANG YAN ◽  
YUAN FENG ◽  
WEI LI ◽  
JIAN-PING CHE ◽  
GUANG-CHUN WANG ◽  
...  
Keyword(s):  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Unilateral Ureteral Obstruction ◽  
Protective Effects

Protective effects of low-dose carbon monoxide against renal fibrosis induced by unilateral ureteral obstruction

2008 ◽  
Vol 294 (3) ◽  
pp. F508-F517 ◽  
Author(s):  
Lin Wang ◽  
Ji-Yang Sophie Lee ◽  
Joon Hyeok Kwak ◽  
Yanjuan He ◽  
Sung Il Kim ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Low Dose ◽  
Tissue Injury ◽  
Unilateral Ureteral Obstruction ◽  
Tubulointerstitial Fibrosis ◽  
In Vivo Model ◽  
Obstructive Nephropathy ◽  
Protective Effects

Tubulointerstitial fibrosis is a hallmark of chronic progressive kidney disease leading to end-stage renal failure. An endogenous product of heme oxygenase activity, carbon monoxide (CO), has been shown to exert cytoprotection against tissue injury. Here, we explored the effects of exogenous administration of low-dose CO in an in vivo model of renal fibrosis induced by unilateral ureteral obstruction (UUO) and examined whether CO can protect against kidney injury. UUO in mice leads to increased extracellular matrix (ECM) deposition and tubulointerstitial fibrosis within 4 to 7 days. Kidneys of mice exposed to low-dose CO, however, had markedly reduced ECM deposition after UUO. Moreover, low-dose CO treatment inhibited the induction of α-smooth muscle actin (α-SMA) and major ECM proteins, type 1 collagen and fibronectin, in kidneys after UUO. In contrast, these anti-fibrotic effects of CO treatment were abrogated in mice carrying null mutation of Mkk3, suggesting involvement of the MKK3 signaling pathway in mediating the CO effects. Additionally, in vitro CO exposure markedly inhibited TGF-β1-induced expression of α-SMA, collagen, and fibronectin in renal proximal tubular epithelial cells. Our findings suggest that low-dose CO exerts protective effects, via the MKK3 pathway, to inhibit development of renal fibrosis in obstructive nephropathy.

scholarly journals Protective effects of SKLB023 on a mouse model of unilateral ureteral obstruction by the modulation of gut microbiota

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40232-40242
Author(s):  
Yanhuan Feng ◽  
Lingzhi Li ◽  
Fan Guo ◽  
Yanping Li ◽  
Yan Liang ◽  
...  
Keyword(s):  
Mouse Model ◽  
Gut Microbiota ◽  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Unilateral Ureteral Obstruction ◽  
Protective Effects ◽  
Common Pathway ◽  
The Common

Renal fibrosis is the common pathway underlying the progression of CKD to ESRD and quantitative and qualitative alterations in gut microbiota are noted in patients with CKD. Our results indicated SKLB023 drives the alteration of gut microbiota to attenuate renal fibrosis.

scholarly journals Sorafenib Inhibits Renal Fibrosis Induced by Unilateral Ureteral Obstruction via Inhibition of Macrophage Infiltration

2016 ◽  
Vol 39 (5) ◽  
pp. 1837-1849 ◽  
Author(s):  
Wenting Ma ◽  
Le Tao ◽  
Xuefei Wang ◽  
Qinyi Liu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Cell Cancer ◽  
Unilateral Ureteral Obstruction ◽  
Macrophage Infiltration ◽  
Similar Distribution ◽  
Advanced Hepatocellular Carcinoma ◽  
Protective Effects ◽  
Sorafenib Treatment ◽  
Immunological Mechanisms

Aims: Sorafenib, which has been used extensively for the treatment of renal cell cancer and advanced hepatocellular carcinoma (HCC), has also been shown to have antifibrotic effects in liver fibrosis. However, the effects of sorafenib on renal fibrosis are unknown. Therefore, we investigated whether sorafenib inhibited renal fibrosis in a mouse model of unilateral ureteral obstruction (UUO) and further explored the potential mechanism. Methods: Mice underwent UUO followed by vehicle or sorafenib treatment. The expression of CD68, a macrophage marker, and the pro-inflammatory cytokines, MCP1 and CXCR3, were immunohistochemically analyzed. The involvement of macrophages in the formation of renal fibrosis was studied using confocal microscopy. Results: Renal histopathology improved in the UUO-sorafenib mice. Sorafenib notably suppressed TGF-β1-mediated renal fibrogenic effects. The mRNA and protein expressions of CD68, MCP1, and CXCR3 in the obstructed kidney were significantly decreased by sorafenib. Immunohistochemistry showed that CD68 and CXCR3 had a similar distribution, whereas MCP1 was observed predominantly in the tubular epithelial cells. Double immunofluorescence demonstrated that CD68-positive macrophages could co-localize with CXCR3. It also revealed that CXCR3 interacted with CXCL11 in the UUO mouse kidneys. Widespread adhesion of macrophages to myofibroblasts was markedly inhibited in UUO-sorafenib mouse kidneys. Conclusions: Taken together, the results indicated that sorafenib had protective effects against renal fibrosis; its mechanism of action was associated with inhibition of macrophage infiltration via the CXCR3/CXCL11 pathway. These data suggest the clinical potential of sorafenib for treatment of renal fibrosis and illustrate the immunological mechanisms underlying the protective effects of sorafenib.

scholarly journals NLRP3 Deficiency Attenuates Renal Fibrosis and Ameliorates Mitochondrial Dysfunction in a Mouse Unilateral Ureteral Obstruction Model of Chronic Kidney Disease

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Honglei Guo ◽  
Xiao Bi ◽  
Ping Zhou ◽  
Shijian Zhu ◽  
Wei Ding
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Mitochondrial Dysfunction ◽  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Unilateral Ureteral Obstruction ◽  
Tubulointerstitial Fibrosis ◽  
Mitochondrial Morphology ◽  
Glomerular Injury ◽  
Matrix Deposition

Background and Aims. The nucleotide-binding domain and leucine-rich repeat containing PYD-3 (NLRP3) inflammasome has been implicated in the pathogenesis of chronic kidney disease (CKD); however, its exact role in glomerular injury and tubulointerstitial fibrosis is still undefined. The present study was performed to identify the function of NLRP3 in modulating renal injury and fibrosis and the potential involvement of mitochondrial dysfunction in the murine unilateral ureteral obstruction (UUO) model of CKD. Methods. Employing wild-type (WT) and NLRP3−/− mice with or without UUO, we evaluated renal structure, tissue injury, and mitochondrial ultrastructure, as well as expression of some vital molecules involved in the progression of fibrosis, apoptosis, inflammation, and mitochondrial dysfunction. Results. The severe glomerular injury and tubulointerstitial fibrosis induced in WT mice by UUO was markedly attenuated in NLRP3−/− mice as evidenced by blockade of extracellular matrix deposition, decreased cell apoptosis, and phenotypic alterations. Moreover, NLRP3 deletion reversed UUO-induced impairment of mitochondrial morphology and function. Conclusions. NLRP3 deletion ameliorates mitochondrial dysfunction and alleviates renal fibrosis in a murine UUO model of CKD.

scholarly journals The Role of Apelin on the Alleviative Effect of Angiotensin Receptor Blocker in Unilateral Ureteral Obstruction-Induced Renal Fibrosis

Nephron Extra ◽  
2012 ◽  
Vol 2 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Masashi Nishida ◽  
Yasuko Okumura ◽  
Tatsujiro Oka ◽  
Kentaro Toiyama ◽  
Seiichiro Ozawa ◽  
...  
Keyword(s):  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Angiotensin Receptor Blocker ◽  
Unilateral Ureteral Obstruction ◽  
Receptor Blocker ◽  
Angiotensin Receptor

scholarly journals L-Endoglin Overexpression Increases Renal Fibrosis after Unilateral Ureteral Obstruction

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e110365 ◽  
Author(s):  
Bárbara Oujo ◽  
José M. Muñoz-Félix ◽  
Miguel Arévalo ◽  
Elena Núñez-Gómez ◽  
Lucía Pérez-Roque ◽  
...  
Keyword(s):  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Unilateral Ureteral Obstruction

Fate alteration of bone marrow-derived macrophages ameliorates kidney fibrosis in murine model of unilateral ureteral obstruction

2018 ◽  
Vol 34 (10) ◽  
pp. 1657-1668 ◽  
Author(s):  
Ying Yang ◽  
Xiaojian Feng ◽  
Xinyan Liu ◽  
Ying Wang ◽  
Min Hu ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Kidney Diseases ◽  
Unilateral Ureteral Obstruction ◽  
Immunofluorescent Staining ◽  
Enzyme Linked Immunosorbent Assay ◽  
Pathological Feature ◽  
Kidney Fibrosis ◽  
Anti Inflammatory

AbstractBackgroundRenal fibrosis is a key pathological feature and final common pathway leading to end-stage kidney failure in many chronic kidney diseases. Myofibroblast is the master player in renal fibrosis. However, myofibroblasts are heterogeneous. Recent studies show that bone marrow-derived macrophages transform into myofibroblasts by transforming growth factor (TGF)-β-induced macrophage–myofibroblast transition (MMT) in renal fibrosis.MethodsTGF-β signaling was redirected by inhibition of β-catenin/T-cell factor (TCF) to increase β-catenin/Foxo in bone marrow-derived macrophages. A kidney fibrosis model of unilateral ureteral obstruction was performed in EGFP bone marrow chimera mouse. MMT was examined by flow cytometry analysis of GFP+F4/80+α-SMA+ cells from unilateral ureteral obstruction (UUO) kidney, and by immunofluorescent staining of bone marrow-derived macrophages in vitro. Inflammatory and anti-inflammatory cytokines were analysis by enzyme-linked immunosorbent assay.ResultsInhibition of β-catenin/TCF by ICG-001 combined with TGF-β1 treatment increased β-catenin/Foxo1, reduced the MMT and inflammatory cytokine production by bone marrow-derived macrophages, and thereby, reduced kidney fibrosis in the UUO model.ConclusionsOur results demonstrate that diversion of β-catenin from TCF to Foxo1-mediated transcription not only inhibits the β-catenin/TCF-mediated fibrotic effect of TGF-β, but also enhances its anti-inflammatory action, allowing therapeutic use of TGF-β to reduce both inflammation and fibrosis at least partially by changing the fate of bone marrow-derived macrophages.

scholarly journals Dapagliflozin Alleviates Renal Fibrosis by Inhibiting RIP1-RIP3-MLKL-Mediated Necroinflammation in Unilateral Ureteral Obstruction

2022 ◽  
Vol 12 ◽  
Author(s):  
Mei Ying Xuan ◽  
Shang Guo Piao ◽  
Jun Ding ◽  
Qi Yan Nan ◽  
Mei Hua Piao ◽  
...  
Keyword(s):  
Cell Death ◽  
Ureteral Obstruction ◽  
Renal Fibrosis ◽  
Apoptotic Cell ◽  
Subsequent Development ◽  
Unilateral Ureteral Obstruction ◽  
Apoptotic Cell Death ◽  
Inflammasome Activation ◽  
Renal Tubular

Dapagliflozin, a sodium-glucose cotransporter-2 inhibitor, offers renoprotection in diabetes. However, potential for use in nondiabetic kidney disease remains unknown. Herein, we assessed whether dapagliflozin alleviates renal fibrosis by interfering with necroinflammation in a rat model of unilateral ureteral obstruction (UUO) and in vitro. After induction of UUO, rats were administered dapagliflozin daily for seven consecutive days. UUO induced significant renal tubular necrosis and overexpression of RIP1-RIP3-MLKL axis proteins; these coincided with NLRP3 inflammasome activation, and subsequent development of renal fibrosis. Oxidative stress caused by UUO is tightly associated with endoplasmic reticulum stress and mitochondrial dysfunction, leading to apoptotic cell death through Wnt3α/β-catenin/GSK-3β signaling; all of which were abolished by both dapagliflozin and specific RIP inhibitors (necrostatin-1 and GSK872). In H2O2-treated HK-2 cells, dapagliflozin and RIP inhibitors suppressed overexpression of RIP1-RIP3-MLKL proteins and pyroptosis-related cytokines, decreased intracellular reactive oxygen species production and apoptotic cell death, whereas cell viability was improved. Moreover, activated Wnt3α/β-catenin/GSK-3β signaling was inhibited by dapagliflozin and Wnt/β-catenin inhibitor ICG-001. Our findings suggest that dapagliflozin ameliorates renal fibrosis by inhibiting RIP1-RIP3-MLKL-mediated necroinflammation via Wnt3α/β-catenin/GSK-3β signaling in UUO.

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