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https://www.readbyqxmd.com/read/29669060/plasticizer-di-2-ethylhexyl-phthalate-induces-epithelial-to-mesenchymal-transition-and-renal-fibrosis-in-vitro-and-in-vivo
#1
Cheng-Tien Wu, Ching-Chia Wang, Li-Chen Huang, Shing-Hwa Liu, Chih-Kang Chiang
Plasticizer di-(2-ethylhexyl)phthalate (DEHP) is known as an endocrine disruptor and a peroxisome proliferator. A currently epidemiological study has suggested that daily high di-(2-ethylhexyl)phthalate (DEHP) intake from phthalate-tainted foods in children may be a risk factor for renal dysfunction. DEHP can leach from medical devices such as blood storage bags and the tubing. Long-term exposure to DEHP is associated with nephropathy and exacerbates chronic kidney diseases (CKD) progression. However, the detailed effects and molecular mechanisms remain unclear...
April 14, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29668357/formin-dependent-tgf-%C3%AE-signaling-for-epithelial-to-mesenchymal-transition
#2
Manish K Rana, Francesca M Aloisio, Changhoon Choi, Diane L Barber
The role of distinct actin filaments architectures in epithelial plasticity remains incompletely understood. We, therefore, determined roles for formins and the Arp2/3 complex, which are actin nucleators generating unbranched and branched actin filaments, respectively, in the process of epithelial to mesenchymal transition (EMT). In clonal lung, mammary and renal epithelial cells, the formin activity inhibitor SMIFH2 but not the Arp2/3 complex activity inhibitor CK666 blocked EMT induced by TGF-β. SMIFH2 prevented the proximal signal of increased Smad2 phosphorylation, and hence also blocked downstream EMT markers, including actin filament remodeling, decreased expression of the adherens junction protein E-cadherin and increased expression of the matrix protein fibronectin and the transcription factor Snail...
April 18, 2018: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/29665787/valproic-acid-sensitizes-metformin-resistant-human-renal-cell-carcinoma-cells-by-upregulating-h3-acetylation-and-emt-reversal
#3
Muyun Wei, Shaowei Mao, Guoliang Lu, Liang Li, Xiaopeng Lan, Zhongxian Huang, Yougen Chen, Miaoqing Zhao, Yueran Zhao, Qinghua Xia
BACKGROUND: Metformin (Met) is a widely available diabetic drug and shows suppressed effects on renal cell carcinoma (RCC) metabolism and proliferation. Laboratory studies in RCC suggested that metformin has remarkable antitumor activities and seems to be a potential antitumor drug. But the facts that metformin may be not effective in reducing the risk of RCC in cancer clinical trials made it difficult to determine the benefits of metformin in RCC prevention and treatment. The mechanisms underlying the different conclusions between laboratory experiments and clinical analysis remains unclear...
April 17, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29627824/protective-effect-of-znt7-on-high-glucose-induced-epithelial-to-mesenchymal-transition-in-renal-tubular-epithelial-cells
#4
Xiuli Zhang, Xu Lian, Dan Liang, Lianzhi Zhang, Shengquan Liu, Lina Yang, Zhi-Hong Chi, Harvest F Gu
BACKGROUND/AIMS: Evidence from our and other groups has demonstrated that zinc transporter 7 in SLC30 family (ZnT7) inhibited epithelial-to-mesenchymal transition (EMT) and apoptosis in rat peritoneal mesothelial cells (RPMCs) under high glucose (HG) concentration. In the present study, we investigated the effect of ZnT7 on EMT of renal tubular epithelial cells (RTECs) in an in vitro model of diabetic nephropathy (DN). METHODS: A dual-fluorescent staining protocol was used for detection of ZnT7 in a normal rat kidney tubular epithelial cell line (NRK-52E cells)...
March 29, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29620271/mir%C3%A2-152-regulates-tgf%C3%A2-%C3%AE-1%C3%A2-induced-epithelial%C3%A2-mesenchymal-transition-by-targeting-hpip-in-tubular-epithelial-cells
#5
Ya-Xian Ning, Xiao-Yuan Wang, Jian-Qin Wang, Rong Zeng, Gou-Qin Wang
Renal fibrosis is a common pathological feature of chronic kidney diseases, and their development and progression are influenced by epigenetic modifications including aberrant microRNA (miRNA or miR) expression. miRNAs have been demonstrated to modulate the aggressiveness of various cancers and have emerged as possible therapeutic agents for the management of renal fibrosis. Transforming growth factor β1 (TGF‑β1)‑induced epithelial‑mesenchymal transition (EMT) of tubular epithelial cells serves a role in the initiation and progression of renal fibrosis...
April 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29607933/reduction-of-membrane-protein-crim1-decreases-e-cadherin-and-increases-claudin-1-and-mmps-enhancing-the-migration-and-invasion-of-renal-carcinoma-cells
#6
Nobutaka Ogasawara, Tamami Kudo, Masaki Sato, Yasushi Kawasaki, Sei Yonezawa, Satoru Takahashi, Yohei Miyagi, Yasuhiro Natori, Akinori Sugiyama
CRIM1 is a membrane protein that has been reported to be related to cell proliferation. CRIM1 is expressed in renal carcinoma cells, but its involvement in proliferation and malignant transformation remains unclear. We analyzed whether alterations in the characteristics of cancer cells are observed following knockdown of CRIM1. Decreased expression of CRIM1 did not affect proliferation or anchorage-independent growth. The results of wound healing and invasion assays showed that reduced expression of CRIM1 increased cells' migratory and invasive abilities...
2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29607931/ginsenoside-rg1-protects-against-renal-fibrosis-by-regulating-the-klotho-tgf-%C3%AE-1-smad-signaling-pathway-in-rats-with-obstructive-nephropathy
#7
Sha-Sha Li, Ao-Lin He, Zhi-Yong Deng, Qi-Feng Liu
Ginsenoside-Rg1 (G-Rg1) is an agent isolated from Panax ginseng that exerts anti-fibrotic effects; however, the mechanism is still unclear. Herein, we investigated whether G-Rg1 administration can mitigate or reverse unilateral ureteral obstruction (UUO)-induced renal fibrosis by regulating the Klotho/transforming growth factor (TGF)-β1/Smad signaling pathway in rats. Sprague-Dawley male rats were subjected to UUO, and rats in the treatment group were administered G-Rg1 or G-Rg1 plus Klotho short hairpin RNA interference (shRNA), while rats in the control and model groups were administered vehicle for 14 d...
2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29577935/parathyroid-hormone-like-hormone-induces-epithelial-to-mesenchymal-transition-of-intestinal-epithelial-cells-by-activating-the-transcription-factor-runx2
#8
Shuying He, Minmin Xue, Cuiping Liu, Fang Xie, Lan Bai
Epithelial-to-mesenchymal transition (EMT) is a key contributor to fibroblast activation in fibrosis of multiple organs, including the intestine. Parathyroid hormone-like hormone (PTHLH) is an important factor in renal fibrosis and regulates several processes, including EMT. Here, we investigated the role of PTHLH-induced EMT in intestinal fibrosis associated with Crohn's disease. The expression levels of the EMT-related proteins, PTHLH and parathyroid hormone receptor 1 (PTH1R) in intestinal tissues were determined by immunohistochemistry, and our results revealed that PTHLH and PTH1R were significantly elevated and associated with EMT marker expression...
March 22, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29576795/effects-of-qingshen-granules-on-the-oxidative-stress-nf-kb-signal-pathway-in-unilateral-ureteral-obstruction-rats
#9
Hua Jin, Yiping Wang, Dong Wang, Lei Zhang
Background . The activation of NF-kappa B (NF/kB) signaling pathway plays an important role in the process of epithelial-mesenchymal transition (EMT) and renal interstitial fibrosis (RIF) in renal tubules. The process of oxidative stress reaction in kidney is via excessive reactive oxygen species (ROS) production to activate NF/kB signaling pathway. Qingshen Granule (QSG) is an effective Chinese formula utilized to treat chronic renal failure. Previous studies confirmed that QSG could inhibit RIF in unilateral ureteral obstruction (UUO) rats...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29568897/mir-29b-regulates-ang-ii-induced-emt-of-rat-renal-tubular-epithelial-cells-via-targeting-pi3k-akt-signaling-pathway
#10
Hongtao Hu, Shuang Hu, Shen Xu, Yue Gao, Fang Zeng, Hua Shui
Renal interstitial fibrosis is a necessary step in the progression of chronic kidney to end stage renal disease. MicroRNA-29 (miR-29) has been shown to play essential roles in epithelial-mesenchymal transition (EMT), and thus may contribute to the regulation of renal interstitial fibrosis. However, the role of miR-29 in the regulation of EMT during chronic kidney disease and renal transplantation has been a source of intense debate, and the mechanisms underlying this process are incompletely understood. In this study, we investigated the function of miR-29b in the regulation of EMT and to gain a better understanding of the mechanism by which miR-29b modulates EMT by targeting the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) signaling pathway during the process of renal interstitial fibrosis...
March 22, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29551286/up-regulation-of-microrna-93-inhibits-tgf-%C3%AE-1-induced-emt-and-renal-fibrogenesis-by-down-regulation-of-orai1
#11
Jifang Ma, Lei Zhang, Jianbing Hao, Naqi Li, Jie Tang, Lirong Hao
TGF-β1-induced excessive deposition of ECM and EMT process of tubular epithelial cells play critical roles in the development and progression of fibrosis in diabetic nephropathy (DN). Orai1 has been demonstrated to be involved in TGF-β1-induced EMT via TGF-β/Smad3 pathway. We are aimed to explore the effects of miR-93 on TGF-β1-induced EMT process in HK2 cells. In this study, our data showed that miR-93 was dramatically decreased in renal tissues of patients with DN and TGF-β1-stimulated HK2 cells. Moreover, the decreased level of miR-93 was closely associated with the increased expression of Orai1...
February 14, 2018: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29531806/quantitative-peptidomics-of-endogenous-peptides-involved-in-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-of-renal-epithelial-cells
#12
Rattiyaporn Kanlaya, Visith Thongboonkerd
TGF-β1 is a key fibrotic factor mediating epithelial mesenchymal transition (EMT) of epithelial cells through various signaling pathways. However, roles of proteolytic cleavage and endogenous peptide dynamics in TGF-β1-induced EMT remain unknown. We therefore performed quantitative peptidomics of TGF-β1-induced EMT in renal tubular epithelial cells. The acquired mesenchymal characteristics were confirmed, including morphological change (from cobblestone-like to fibroblast-like), decreased epithelial marker (ZO-1), and increased mesenchymal marker (vimentin)...
December 2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29530599/the-glucagon-like-peptide-1-glp-1-analog-liraglutide-attenuates-renal-fibrosis
#13
Ya-Kun Li, Dong-Xia Ma, Zhi-Min Wang, Xiao-Fan Hu, Shang-Lin Li, Hong-Zhe Tian, Meng-Jun Wang, Yan-Wen Shu, Jun Yang
Renal fibrosis is recognized as the common route of all chronic kidney disease (CKD) progressing to end-stage renal disease (ESRD). Additionally, accumulating evidence suggests that epithelial-mesenchymal transition (EMT) plays a significant role in the process of renal fibrogenesis. Liraglutide is a long-acting glucagon-like peptide-1 (GLP-1) analog that has been widely used to treat type 2 diabetes. Recent studies have demonstrated that the GLP-1 analogs could also exert protective effects in cardiac fibrosis models...
March 9, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29522906/daily-therapy-with-a-slow-releasing-h-2-s-donor-gyy4137-enables-early-functional-recovery-and-ameliorates-renal-injury-associated-with-urinary-obstruction
#14
Shouzhe Lin, Dameng Lian, Weihua Liu, Aaron Haig, Ian Lobb, Ahmed Hijazi, Hassan Razvi, Jeremy Burton, Matthew Whiteman, Alp Sener
OBJECTIVES: To assess the effects of slow-releasing H2 S donor GYY4137 on post-obstructive renal function and injury following unilateral ureteral obstruction (UUO) by using the UUO and reimplantation (UUO-R) model in rats and to elucidate potential mechanisms by using an in vitro model of epithelial-mesenchymal transition (EMT). METHODS: Male Lewis rats underwent UUO at the left ureterovesical junction. From post-obstructive day (POD) 1-13, rats received daily intraperitoneal (IP) injection of phosphate buffered saline (PBS, 1 mL) or GYY4137 (200 μmol/kg/day in 1 mL PBS, IP)...
March 6, 2018: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29476431/renalase-contributes-to-protection-against-renal-fibrosis-via-inhibiting-oxidative-stress-in-rats
#15
Yiru Wu, Liyan Wang, Xiaoqi Wang, Yahui Wang, Qidong Zhang, Wenhu Liu
BACKGROUND: Renal interstitial fibrosis (RIF) is a common pathway for progression of chronic kidney disease (CKD) to end-stage renal disease. In our previous study, it has been provided that renalase can ameliorate renal interstitial fibrosis in unilateral ureteral obstruction (UUO) rats. The other mechanism of renalase to alleviate renal fibrosis should be explored. MATERIALS AND METHODS: In this study, we evaluated the role of oxidative stress in UUO rats and epithelial-mesenchymal transition (EMT) in human proximal renal tubular epithelial (HK-2) cells and examined the association of renalase...
February 23, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29472550/pim1-mediates-epithelial-mesenchymal-transition-by-targeting-smads-and-c-myc-in-the-nucleus-and-potentiates-clear-cell-renal-cell-carcinoma-oncogenesis
#16
Bin Zhao, Lei Liu, Jun Mao, Zhiwei Zhang, Qifei Wang, Quanlin Li
Emerging evidence has shown that the PIM serine/threonine kinase family, including PIM1, PIM2 and PIM3, is associated with tumour progression towards metastasis. PIM1, an attractive molecular target, has been identified as a potential prognostic biomarker for haematological and epithelial malignancies. However, to date, the potential regulatory roles and molecular mechanisms by which PIM1 affects the development and progression of cancers, including clear-cell renal-cell carcinoma (ccRCC), remain largely unknown...
February 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29464030/under-expression-of-ck2%C3%AE-subunit-in-ccrcc-represents-a-complementary-biomarker-of-p-stat3-ser727-that-correlates-with-patient-survival
#17
Jordi Vilardell, Estefania Alcaraz, Eduard Sarró, Enric Trilla, Thaïs Cuadros, Inés de Torres, Maria Plana, Santiago Ramón Y Cajal, Lorenzo A Pinna, Maria Ruzzene, Juan Morote, Anna Meseguer, Emilio Itarte
Clear cell renal cell carcinoma (ccRCC) is the most common and aggressive subtype of renal cancer. STAT3 pathway is altered in these tumors and p-STAT3 Ser727 is an independent prognostic factor for ccRCC. Protein kinase CK2 is altered in different types of tumors and overexpression of CK2α is considered predictive of bad prognosis and metastatic risk. CK2 subunits analyses in ccRCC samples showed increased CK2α/α' nuclear content in all cases, but decreased cytosolic CK2β (CK2βcyt) levels in the more advanced tumors...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29456733/fbxw7-regulates-renal-cell-carcinoma-migration-and-invasion-via-suppression-of-the-epithelial-mesenchymal-transition
#18
Hongchao He, Jun Dai, Zhaoping Xu, Wei He, Xiaojing Wang, Yu Zhu, Haofei Wang
F-box and WD repeat domain containing 7 (Fbxw7) is an F-box protein that belongs to the SKP1-CUL1-F-box protein E3 ligase complex and is responsible for transferring the ubiquitin molecule to the substrate, which results in its recognition and subsequent degradation by proteasomes. Furthermore, it can identify a network of signaling proteins that function in cell growth, diversion and apoptosis. In the present study, Fbxw7 was downregulated in renal cell carcinoma (RCC) tissues compared with the adjacent non-tumor tissues and its expression was significantly associated with the tumor-node-metastasis stage, lymph node metastasis and distant metastasis in patients with RCC...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29440295/microrna-203-inhibits-long-noncoding-rna-hotair-and-regulates-tumorigenesis-through-epithelial-to-mesenchymal-transition-pathway-in-renal-cell-carcinoma
#19
Pritha Dasgupta, Priyanka Kulkarni, Shahana Majid, Shahryari Varahram, Yutaka Hashimoto, Nadeem S Bhat, Marisa Shiina, Guoren Deng, Sharanjot Saini, Z Laura Tabatabai, Soichiro Yamamura, Yuichiro Tanaka, Rajvir Dahiya
This study aims to investigate the role of miR-203-HOTAIR interaction in the suppression of renal cell carcinoma (RCC). We employed series of in vitro assays such as proliferation, invasion, migration and colony formation along with in vivo tumor xenograft model. Profiling of miR-203 and HOTAIR expression revealed that miR-203 was significantly under-expressed whereas HOTAIR was overexpressed in RCC cell-lines and clinical specimens compared to normal cell line and tissue. Both miR-203 and HOTAIR expression significantly distinguished malignant from normal tissues and significantly correlated with clinicopathological characteristics of patients...
February 13, 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29436600/adenovirus-mediated-p311-ameliorates-renal-fibrosis-through-inhibition-of-epithelial-mesenchymal-transition-via-tgf-%C3%AE-1-smad-ilk-pathway-in-unilateral-ureteral-obstruction-rats
#20
Fang-Hua Qi, Ping-Ping Cai, Xiang Liu, Guo-Min Si
Epithelial-mesenchymal transition (EMT) is a critical step and key factor during renal fibrosis. Preventing renal tubular EMT is important for delaying the progression of chronic kidney disease (CKD). P311, a highly conserved 8-kDa intracellular protein, has been indicated as an important factor in myofibroblast transformation and in the progression of fibrosis. However, the related studies on P311 on renal fibrosis are limited and the mechanisms of P311 in the progression of renal tubulointerstitial fibrosis remain largely unknown...
February 12, 2018: International Journal of Molecular Medicine
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