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https://www.readbyqxmd.com/read/29329595/human-umbilical-cord-mesenchymal-stem-cell-conditioned-medium-attenuates-renal-fibrosis-by-reducing-inflammation-and-epithelial-to-mesenchymal-transition-via-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway-in-vivo-and-in-vitro
#1
Bo Liu, Fengxia Ding, Dong Hu, Yu Zhou, Chunlan Long, Lianju Shen, Yuanyuan Zhang, Deying Zhang, Guanghui Wei
BACKGROUND: Renal fibrosis is characterized by infiltration of interstitial inflammatory cells and release of inflammatory mediators, activation and proliferation of fibroblasts, and deposition of excessive extracellular matrix (ECM). The aim of this study was to evaluate the effect of human umbilical cord-derived mesenchymal stem cell (hucMSC) conditioned medium (CM) on renal tubulointerstitial inflammation and fibrosis. METHODS: Renal interstitial fibrosis was prepared in vivo using the unilateral ureteral obstruction (UUO)...
January 12, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29325696/urinary-mrna-analysis-of-biomarkers-to-epithelial-mesenchymal-transition-of-renal-allograft
#2
Imen Mezni, Pierre Galichon, Mohammed Mongi Bacha, Yi-Chun Xu-Dubois, Imen Sfar, David Buob, Sabrina Benbouzid, Rim Goucha, Yousr Gorgi, Ezzedine Abderrahim, Mondher Ounissi, Karine Dahan, Nacera Ouali, Alexandre Hertig, Isabelle Brocheriou, Aly Raies, Taieb Ben Abdallah, Éric Rondeau
Renal allograft loss is most often a chronic process, irrespective of the mechanism at stake. In this prospective study, we studied the expression of epithelial to mesenchymal transition (EMT) markers vimentin and β-catenin by immunohistochemistry in the surveillance biopsy and measured the mRNA encoding vimentin (VIM), CD45, GAPDH and uroplakin 1a (UPK) by quantitative PCR in urinary cells in 75 renal transplant patients. The aim is to establish a simple screening test for chronic renal allograft dysfunction...
January 8, 2018: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29314610/emerging-role-of-twist1-in-fibrotic-diseases
#3
REVIEW
Xiaoxuan Ning, Kun Zhang, Qingfeng Wu, Minna Liu, Shiren Sun
Epithelial-mesenchymal transition (EMT) is a pathological process that occurs in a variety of diseases, including organ fibrosis. Twist1, a basic helix-loop-helix transcription factor, is involved in EMT and plays significant roles in various fibrotic diseases. Suppression of the EMT process represents a promising approach for the treatment of fibrotic diseases. In this review, we discuss the roles and the underlying molecular mechanisms of Twist1 in fibrotic diseases, including those affecting kidney, lung, skin, oral submucosa and other tissues...
January 5, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29285425/active-maintenance-of-endothelial-cells-prevents-kidney-fibrosis
#4
Seung Hee Yang, Yong Chul Kim, Jung Nam An, Jin Hyuk Kim, Juhoh Lee, Hee-Yoon Lee, Joo-Youn Cho, Jin Ho Paik, Yun Kyu Oh, Chun Soo Lim, Yon Su Kim, Jung Pyo Lee
Background: Soluble epoxide hydrolase (sEH) expressed by endothelial cells catalyzes the metabolism of epoxyeicosatrienoic acids (EETs), which are vasoactive agents. Methods: We used a unilateral ureteral obstruction mouse model of kidney fibrosis to determine whether inhibition of sEH activity reduces fibrosis, the final common pathway for chronic kidney disease. Results: sEH activity was inhibited by continuous release of the inhibitor 12-(3-adamantan-1-ylureido)-dodecanoic acid (AUDA) for 1 or 2 weeks...
December 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/29277613/hypoxia-induced-activation-of-twist-mir-214-e-cadherin-axis-promotes-renal-tubular-epithelial-cell-mesenchymal-transition-and-renal-fibrosis
#5
Minna Liu, Limin Liu, Ming Bai, Lei Zhang, Feng Ma, Xiaoxia Yang, Shiren Sun
The epithelial-to-mesenchymal transition (EMT) induced by chronic hypoxia is one of the critical causes of renal fibrosis. Previous work reported that the transcription factors Twist plays an important role in hypoxia-induced EMT and renal fibrosis. Recent evidence indicates that miR-214 was regulated by Twist in many fibrotic diseases, but their role in hypoxia-induced EMT and renal fibrosis remains unknown. Here, we found that hypoxia significantly upregulated the expression of miR-214-3p in HK-2 cells, unilateral ureteral obstruction (UUO) nephropathy and patients with chronic kidney disease...
December 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29234448/aristolochic-acid-induced-autophagy-promotes-epithelial-to-myofibroblast-transition-in-human-renal-proximal-tubule-epithelial-cells
#6
Yu-Lin Man, Hong-Liang Rui, Yi-Pu Chen, Guo-Qin Wang, Li-Jun Sun, Hong Cheng
Autophagy plays an essential role in cellular homeostasis in kidney. Previous studies have found that aristolochic acid (AA) can induce autophagy of renal tubular epithelial cells and epithelial-to-myofibroblast transition (EMT). However, the relationship between AA-induced autophagy and EMT is unclear. Our results showed that, after AA stimulation, the appearance of autophagy preceded EMT. Autophagy of HKC cells began to increase gradually from the 3rd hour, reached the peak at 12th hour, and then weakened gradually until 36th hour; the EMT process of HKC continued to increase from 6th hour to 36th hour after AA stimulation...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29228653/overexpression-of-capn2-promotes-cell-metastasis-and-proliferation-via-akt-mtor-signaling-in-renal-cell-carcinoma
#7
Chenkui Miao, Chao Liang, Ye Tian, Aiming Xu, Jundong Zhu, Kai Zhao, Jianzhong Zhang, Yibo Hua, Shouyong Liu, Huiyu Dong, Chao Zhang, Shifeng Su, Pu Li, Chao Qin, Zengjun Wang
The calpain 2 (CAPN2) is upregulated in various malignant carcinomas. Previous studies have reported that CAPN2 functioned as an oncogenic factor in human cancers. However, its clinical role and potential effects on cell metastasis and proliferation in renal cell carcinoma (RCC) remain unknown. In this study, we evaluated the mRNA and protein levels of CAPN2 in human RCC specimens, matched normal specimens, and RCC cell lines using quantitative Real-time PCR (RT-PCR) and western blot. Immunohistochemistry of 74 RCC tissues in a tissue microarrays (TMAs) and normal kidney tissues were performed...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227974/mir302a-3p-may-modulate-renal-epithelial-mesenchymal-transition-in-diabetic-kidney-disease-by-targeting-zeb1
#8
Wen-Bin Tang, Linfeng Zheng, Renheng Yan, Jiayi Yang, Jianping Ning, Linlin Peng, Qiaoling Zhou, Liping Chen
BACKGROUND: Recent study found that microRNA (miRNA) are involved in diabetic kidney disease (DKD). The objective of this study is to determine the role of miR302a-3p in the process of renal epithelial-mesenchymal transition (EMT) in DKD. METHODS: The miRNA expression profiling of the cell line stimulated by high glucose was performed by a microarray analysis. Then real-time polymerase chain reaction (PCR) were used to determine the expression of one of the miRNAs significantly upregulated in cell line stimulated by high glucose, miR302a-3p...
December 8, 2017: Nephron
https://www.readbyqxmd.com/read/29195108/novel-combined-index-of-cardiometabolic-risk-related-to-periarterial-fat-improves-the-clinical-prediction-for-coronary-artery-disease-complexity
#9
Maciej Haberka, Michał Lelek, Tomasz Bochenek, Adam Kowalówka, Rafał Młynarski, Katarzyna Mizia-Stec, Zbigniew Gąsior
BACKGROUND AND AIMS: Cardiovascular (CV) risk assessment based on conventional risk factors has a limited performance in the prediction of obstructive coronary artery disease (CAD). Therefore, our aim was to provide a complete assessment on the associations between single or combined cardiovascular ultrasound indexes and the complexity of CAD in high and very-high risk patients. METHODS: Two hundred fifteen patients scheduled for elective coronary angiography were enrolled in the study (F/M: 80/135 pts; age: 61...
September 15, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29193729/fhl2-promotes-tubular-epithelial-to-mesenchymal-transition-through-modulating-%C3%AE-catenin-signalling
#10
Ting Cai, Danqin Sun, Ying Duan, Yumei Qiu, Chunsun Dai, Junwei Yang, Weichun He
β-Catenin signalling plays an important role in regulating tubular epithelial-to-mesenchymal transition (EMT), an indispensable programme for driving renal fibrosis. As an adapter protein, four and a half LIM domain protein 2 (FHL2) acts as a coregulator of β-catenin in several other cell types. To determine whether FHL2 affects β-catenin signalling and thus is involved in tubular EMT, we examined its expression and function in the process of TGF-β1-induced EMT. FHL2 mRNA and protein were induced by TGF-β1 in rat tubular epithelial cells (NRK-52E), an effect that intracellular Smad signalling was required...
November 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29174387/role-of-tumor-necrosis-factor-%C3%AE-in-epithelial-to-mesenchymal-transition-in-transplanted-kidney-cells-in-recipients-with-chronic-allograft-dysfunction
#11
Chunchun Zhao, Zhen Xu, Zijie Wang, Chuanjian Suo, Jun Tao, Zhijian Han, Min Gu, Ruoyun Tan
BACKGROUND: Chronic allograft dysfunction (CAD) is characterized by allograft kidney interstitial fibrosis, the underlying mechanism of which is unclear. Our aim was to elucidate the role and mechanism of TNF-α-induced epithelial-to-mesenchymal transition (EMT) in transplant kidney tubular interstitial fibrosis. METHODS: Human kidney tissues from normal volunteers and CAD patients were assessed using periodic acid-Schiff, Masson trichrome and immunohistochemical staining...
November 23, 2017: Gene
https://www.readbyqxmd.com/read/29170782/coordination-driven-assembly-of-catechol-modified-chitosan-for-the-kidney-specific-delivery-of-salvianolic-acid-b-to-treat-renal-fibrosis
#12
Jing Li, Cuiting Zhang, Weiming He, Hongzhi Qiao, Jiahui Chen, KaiKai Wang, David Oupický, Minjie Sun
Kidney-specific delivery is critically important for the treatment of renal fibrosis with drugs such as salvianolic acid B (Sal B). Here we report a kidney-specific nanocomplex formed by the coordination-driven assembly of catechol-modified low molecular weight chitosan (HCA-Chi), calcium ions and Sal B. The prepared HCA-Chi-Ca-Sal B (HChi-Ca-Sal B) nanocomplex reversed the TGF-β1-induced epithelial-mesenchymal transition (EMT) in HK-2 cells. In vivo imaging demonstrated a kidney-specific biodistribution of the nanocomplex...
November 24, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/29160908/connective-tissue-growth-factor-induces-renal-fibrosis-via-epidermal-growth-factor-receptor-activation
#13
Sandra Rayego-Mateos, José Luis Morgado-Pascual, Raúl R Rodrigues-Diez, Raquel Rodrigues-Diez, Lucas Falke, Sergio Mezzano, Alberto Ortiz, Jesús Egido, Roel Goldschmeding, Marta Ruiz-Ortega
Connective tissue growth factor (CCN2/CTGF) is a matricellular protein overexpressed in progressive human renal diseases, mainly in fibrotic areas. In vitro studies have demonstrated that CCN2 regulates production of extracellular matrix (ECM) proteins and epithelial mesenchymal transition (EMT), and therefore could contribute to renal fibrosis. CCN2 blockade ameliorates experimental renal damage, including diminution of ECM accumulation. We have described that CCN2 and its C-terminal degradation product CCN2(IV), bind to epidermal growth factor receptor (EGFR) to modulate renal inflammation...
November 21, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29158549/hypoxia-inducible-factor-1%C3%AE-mediates-the-profibrotic-effect-of-albumin-in-renal-tubular-cells
#14
Junping Hu, Weili Wang, Fan Zhang, Pin-Lan Li, Krishna M Boini, Fan Yi, Ningjun Li
Proteinuria is closely associated with the progression of chronic kidney diseases (CKD) by producing renal tubulointerstitial fibrosis. Over-activation of hypoxia inducible factor (HIF)-1α has been implicated in the progression of CKD. The present study tested the hypothesis that HIF-1α mediates albumin-induced profibrotic effect in cultured renal proximal tubular cells. Incubation of the cells with albumin (40 μg/ml) for 72 hrs significantly increased the protein levels of HIF-1α, tissue inhibitor of metalloproteinase (TIMP)-1 and collagen-I, which were blocked by HIF-1α shRNA...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29156750/somatic-mutations-in-cdh1-and-ctnnb1-in-primary-carcinomas-at-13-anatomic-sites
#15
Evan L Busch, Jason L Hornick, Renato Umeton, Adem Albayrak, Neal I Lindeman, Laura E MacConaill, Elizabeth P Garcia, Matthew Ducar, Timothy R Rebbeck
Metastases are involved in most cancer deaths. Evidence has suggested that cancer cell detachment from primary tumors might occur largely via the mechanism of epithelial-mesenchymal transition (EMT) activated by epigenetic events, but data addressing other possible triggers of detachment, particularly genetic mutations, have been limited. Using the Profile study of cancer genomics at Dana-Farber Cancer Institute, we examined somatic mutations in the EMT genes CDH1 in 5,106 primary carcinomas and CTNNB1 in 7,578 primary carcinomas across 13 anatomic sites: urinary bladder, breast, colon/rectum, endometrium, esophagus, kidney, lung, ovary, pancreas, prostate, skin (non-melanoma), stomach, and thyroid...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29150436/microvesicles-derived-from-human-wharton-s-jellymesenchymal-stem-cells-ameliorate-ischemia-reperfusion-induced-renal-fibrosis-by-releasing-from-g2-m-cell-cycle-arrest
#16
Wenxia Chen, Yongbin Yan, Chundong Song, Ying Ding, Tao Du
Studies have demonstrated that microvesicles (MVs) derived from human Wharton's Jelly mesenchymal stromal cells (hWJMSCs) could ameliorate renal ischemia/reperfusion injury (IRI), however, the underlying mechanisms were not clear yet. Here, MVs were isolated and injected intravenously into rats immediately after ischemia of the left kidney, and Erk1/2 activator HGF or inhibitor U0126 was administrated, respectively. Tubular cell proliferation and apoptosis were identified by Ki67 or TUNEL immunostaining. Masson's tri-chrome straining and alpha-smooth muscle actin (α -SMA) staining were used for assessing renal fibrosis...
November 17, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29122645/interleukin-33-levels-are-elevated-in-chronic-allograft-dysfunction-of-kidney-transplant-recipients-and-promotes-epithelial-to-mesenchymal-transition-of-human-kidney-hk-2-cells
#17
Zhen Xu, Chunchun Zhao, Zijie Wang, Jun Tao, Zhijian Han, Wei Zhang, Ruoyun Tan, Min Gu
This study is aimed to investigate the potential role of interleukin (IL)-33 in transplanted kidney interstitial fibrosis and the associated mechanism. Serum IL-33 levels were detected using an enzyme-linked immunosorbent assay (ELISA) in healthy volunteers, stable kidney transplantation recipients (KTRs) (stable), KTRs with acute rejection (AR), and KTRs with chronic allograft dysfunction (CAD) (CAD). Immunohistochemical (IHC) staining, Western blotting, and quantitative real-time PCR (qRT-PCR) were used to detect the expression of IL-33 in human kidney tissues obtained from control and CAD patients...
November 6, 2017: Gene
https://www.readbyqxmd.com/read/29116339/%C3%AE-arrestin-1-deficiency-ameliorates-renal-interstitial-fibrosis-by-blocking-wnt1-%C3%AE-catenin-signaling-in-mice
#18
Huiyan Xu, Quanxin Li, Jiang Liu, Jiaqing Zhu, Liang Li, Ziying Wang, Yan Zhang, Yu Sun, Jinpeng Sun, Rong Wang, Fan Yi
Despite substantial progress being made in understanding the mechanisms contributing to the pathogenesis of renal fibrosis, there are only a few therapies available to treat or prevent renal fibrosis in clinical use today. Therefore, identifying the key cellular and molecular mediators involved in the pathogenesis of renal fibrosis will provide new therapeutic strategy for treating patients with chronic kidney disease (CKD). β-Arrestin-1, a member of β-arrestin family, not only is a negative adaptor of G protein-coupled receptors (GPCRs), but also acts as a scaffold protein and regulates a diverse array of cellular functions independent of GPCR activation...
November 7, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29042968/hesperetin-alleviates-renal-interstitial-fibrosis-by-inhibiting-tubular-epithelial-mesenchymal-transition-in-vivo-and-in-vitro
#19
Hong-Wei Wang, Lei Shi, Yan-Ping Xu, Xing-Ya Qin, Qi-Zhi Wang
Hesperetin (HES) is a flavonoid that has been reported to exert protective effects against cardiac remodeling, lung fibrosis and hepatic fibrosis. However, reports on the effects and potential mechanisms of HES in renal fibrosis are limited. In the present study, a unilateral ureteric obstruction (UUO) mouse model and a transforming growth factor (TGF)-β1-activated normal rat kidney (NRK)-52E cell model were established. HES was subsequently administered to these models to evaluate its anti-fibrotic effects and potential underlying mechanisms of action...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29033543/effect-of-echinacoside-on-kidney-fibrosis-by-inhibition-of-tgf-%C3%AE-1-smads-signaling-pathway-in-the-db-db-mice-model-of-diabetic-nephropathy
#20
Fengjuan Tang, Yarong Hao, Xue Zhang, Jian Qin
Kidney fibrosis and renal tubular epithelial-to-mesenchymal transition (EMT) are the main pathological changes of diabetic nephropathy (DN), which eventually leads to end-stage renal disease. Previous studies have suggested that echinacoside (ECH) is antifibrotic in the liver. However, the effect of ECH on kidney fibrosis in DN and its mechanisms are unknown. This study was performed to explore the effect of ECH on kidney fibrosis and also the molecular mechanisms of ECH in a db/db mice model of DN. Our results showed that, relative to db/db mice, the mice in the ECH group had an improved general state and reduced blood glucose and 24-hour urinary protein levels...
2017: Drug Design, Development and Therapy
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