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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
#1
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
#2
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
https://www.readbyqxmd.com/read/29398135/activation-of-podocyte-notch-mediates-early-wt1-glomerulopathy
#3
Rowan I Asfahani, Mona M Tahoun, Eve V Miller-Hodges, Jack Bellerby, Alex K Virasami, Robert D Sampson, Dale Moulding, Neil J Sebire, Peter Hohenstein, Peter J Scambler, Aoife M Waters
The Wilms' tumor suppressor gene, WT1, encodes a zinc finger protein that regulates podocyte development and is highly expressed in mature podocytes. Mutations in the WT1 gene are associated with the development of renal failure due to the formation of scar tissue within glomeruli, the mechanisms of which are poorly understood. Here, we used a tamoxifen-based CRE-LoxP system to induce deletion of Wt1 in adult mice to investigate the mechanisms underlying evolution of glomerulosclerosis. Podocyte apoptosis was evident as early as the fourth day post-induction and increased during disease progression, supporting a role for Wt1 in mature podocyte survival...
February 2, 2018: Kidney International
https://www.readbyqxmd.com/read/29393109/hyperuricemia-and-progression-of-chronic-kidney-disease-role-of-phenotype-transition-of-renal-tubular-and-endothelial-cells
#4
Duk-Hee Kang
BACKGROUND: Although the clinical implication of hyperuricemia in chronic kidney disease has been an issue of active debate, recent data suggested a causative role of uric acid (UA) in the development of renal disease. Afferent arteriopathy, an induction of oxidative stress and an activation of local inflammation, have been regarded as the mechanisms of UA-induced renal disease, which contribute to glomerular hypertrophy and interstitial fibrosis via endothelial dysfunction. However, there have been rare studies on the direct effect of UA on phenotype transition of renal cells such as epithelial-to-mesenchymal transition (EMT) or endothelial-to-mesenchymal transition (EndoMT)...
2018: Contributions to Nephrology
https://www.readbyqxmd.com/read/29341864/comparison-of-acute-kidney-injury-of-different-aetiology-reveals-in-common-mechanisms-of-tissue-damage
#5
Michael Hultström, Mediha Becirovic-Agic, Sofia Jönsson
Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate (GFR) and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high-quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis and cisplatin toxicity) identified 5254 differentially expressed genes in at least one of the AKI models...
December 20, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29337054/deficiency-of-primary-cilia-in-kidney-epithelial-cells-induces-epithelial-to-mesenchymal-transition
#6
Sang Jun Han, Jin Ki Jung, Seung-Soon Im, Seong-Ryong Lee, Byeong-Churl Jang, Kwon Moo Park, Jee In Kim
Primary cilium is a microtubule-based non-motile organelle that plays critical roles in kidney pathophysiology. Our previous studies revealed that the lengths of primary cilia decreased upon renal ischemia/reperfusion injury and oxidative stress, and restored with recovery. Here, we tested the hypothesis that lack of primary cilium causes epithelial to mesenchymal transition (EMT) of kidney tubule cells. We investigated the alteration of length of primary cilia in TGF-β-induced EMT via visualization of primary cilia by fluorescence staining against acetylated α-tubulin...
January 11, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29336056/ilei-is-an-important-intermediate-participating-in-the-formation-of-tgf-%C3%AE-1-induced-renal-tubular-emt
#7
Xing Zhao, Gang Luo, Yan Fan, Xiaoxue Ma, Jieqing Zhou, Hong Jiang
Renal interstitial fibrosis is the most common process by which chronic kidney diseases progress to end-stage renal failure. Epithelial-to-mesenchymal transitions (EMTs) play a crucial role in the progression of renal interstitial fibrosis. A newly identified cytokine, interleukin-like EMT inducer (ILEI), has been linked to EMT in some diseases. However, the effects of ILEI on renal tubular EMT have not yet been well established. Here, we characterize the expression of ILEI in tubular EMT and describe the role and mechanism of ILEI in transforming growth factor beta 1 (TGF-β1)-induced renal tubular EMT...
January 15, 2018: Cell Biochemistry and Function
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
#8
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
#9
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/29280536/screening-of-genes-involved-in-epithelial-mesenchymal-transition-and-differential-expression-of-complement-related-genes-induced-by-pax2-in-renal-tubules
#10
Xiu-Li Wang, Ling Hou, Cheng-Guang Zhao, Ying Tang, Bo Zhang, Jing-Ying Zhao, Yu-Bin Wu
AIM: To screen and verify downstream genes involved in the epithelial mesenchymal transition (EMT) induced by paired box 2 (PAX2) in NRK-52E cells. METHODS: NRK-52E cells were transfected with lentivirus carrying PAX2 gene or no-load virus respectively. Total RNA was isolated 72 hr after transfection from PAX2-overexpressing cells and control cells. Isolated RNA was then hybridized with the Rat OneArray Plus expression profile chip. The chips were examined by Agilent 0...
December 27, 2017: Nephrology
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
#11
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/29250977/microencapsulated-macrophages-releases-conditioned-medium-able-to-prevent-epithelial-to-mesenchymal-transition
#12
Anna Sola, Laura Saenz Del Burgo, Jesús Ciriza, Rosa Maria Hernandez, Gorka Orive, Jorge Martin Cordero, Priscila Calle, Jose Luis Pedraz, Georgina Hotter
Epithelial to mesenchymal transition (EMT) has emerged as a key process in the development of renal fibrosis. In fact, EMT-derived fibroblasts contribute to the progression of chronic renal disease. In addition, anti-inflammatory M2 macrophages have exhibited a great influence on renal fibrosis. However, because of the high impact that the inputs of different environmental cytokines have on their phenotype, macrophages can easily lose this property. We aim to known if microencapsulated macrophages on M2-inducing alginate matrices could preserve macrophage phenotype and thus release factors able to act on epithelial cells to prevent the epithelial differentiation towards mesenchymal cells...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29234448/aristolochic-acid-induced-autophagy-promotes-epithelial-to-myofibroblast-transition-in-human-renal-proximal-tubule-epithelial-cells
#13
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
#14
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
#15
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/29221190/the-m6a-methyltransferase-mettl3-acting-as-a-tumor-suppressor-in-renal-cell-carcinoma
#16
Xiao Li, Jingyuan Tang, Wen Huang, Feng Wang, Pu Li, Chao Qin, Zhiqiang Qin, Qing Zou, Jifu Wei, Lixin Hua, Haiwei Yang, Zengjun Wang
We aimed to study the role of METTL3 in renal cell carcinoma (RCC) carcinogenesis and development. Immunohistochemistry was performed in clinical tissue microarray. Expression level of METTL3 in RCC tissues and cell lines was evaluated by quantitative real-time PCR (qRT-PCR) and western blot. Then, the effects of METTL3 on proliferation, migration, invasion and cell cycle were studied in RCC cells. Additionally, in vivo study was carried out in nude mice. Negative METTL3 expression was associated with larger tumor size (P=0...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29215709/the-potential-role-of-aquaporin-1-on-aristolochic-acid-i-induced-epithelial-mesenchymal-transition-on-hk-2-cells
#17
Ji Li, Mincheng Zhang, Yong Mao, Yimao Li, Xiaoxia Zhang, Xuehan Peng, Feng Yu
Aristolochic acid I (AA-I), one of the main active components in Aristolochaia herbs, may induce aristolochic acid nephropathy (AAN). Renal interstitial fibrosis is one of the most typical features of AAN. To investigate the mechanism of Aristolochic acid I (AA-I) -induced renal epithelial-mesenchymal transition (EMT) and determine the role of aquaporin-1 (AQP1) in this process, we established an AA-I-induced EMT model in human proximal tubular epithelial cells (HK-2 cells). Morphological examination, MTT assay, and Western blot analysis were performed...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29209813/fsp1-specific-smad2-knockout-in-renal-tubular-endothelial-and-interstitial-cells-reduces-fibrosis-and-epithelial-to-mesenchymal-transition-in-murine-stz-induced-diabetic-nephropathy
#18
Ivonne Loeffler, Marita Liebisch, Stefanie Allert, Elke Kunisch, Raimund W Kinne, Gunter Wolf
Extracellular matrix deposition during tubulointerstitial fibrosis (TIF), a central pathological process in patients with diabetic nephropathy (DN), is driven by locally activated, disease-relevant myofibroblasts. Myofibroblasts can arise from various cellular sources, e.g., tubular epithelial cells via a process named epithelial-to-mesenchymal transition (EMT). Transforming growth factor beta 1 (TGF-β1) and its downstream Smad signaling play a critical role in both TIF and EMT. Whereas Smad3 is one central mediator, the role of the other prominently expressed variant, Smad2, is not completely understood...
December 6, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29204790/cytoplasmic-expression-of-twist1-an-emt-related-transcription-factor-is-associated-with-higher-grades-renal-cell-carcinomas-and-worse-progression-free-survival-in-clear-cell-renal-cell-carcinoma
#19
Arezoo Rasti, Zahra Madjd, Maryam Abolhasani, Mitra Mehrazma, Leila Janani, Leili Saeednejad Zanjani, Mojgan Asgari
Twist1 is a key transcription factor, which confers tumor cells with cancer stem cell (CSC)-like characteristics and enhances epithelial-mesenchymal transition in pathological conditions including tumor malignancy and metastasis. This study aimed to evaluate the expression patterns and clinical significance of Twist1 in renal cell carcinoma (RCC). The cytoplasmic and nuclear expression of Twist1 were examined in 252 well-defined renal tumor tissues, including 173 (68.7%) clear cell renal cell carcinomas (ccRCC), 45 (17...
December 4, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29198924/sinomenine-hydrochloride-attenuates-the-proliferation-migration-invasiveness-angiogenesis-and-epithelial-mesenchymal-transition-of-clear-cell-renal-cell-carcinoma-cells-via-targeting-smad-in-vitro
#20
Bin Zhao, Lei Liu, Jun Mao, Kun Liu, Weiwang Fan, Jiheng Liu, Zhiwei Zhang, Quanlin Li
New strategies for the treatment of clear-cell renal cell carcinoma (ccRCC) are urgently needed. Recently, accumulating evidence has demonstrated that sinomenine hydrochloride (SH), extracted from the plant sinomenium acutum, has potent anti-cancer activity in multiple human malignant solid tumors. However, the underlying molecular mechanism by which SH treatment exerts its antagonizing tumorigenic effects has not been clearly elucidated. In this study, we showed that SH treatment exerted profound effects on cell growth in ccRCC in a dose- and time-dependent manner in vitro...
November 29, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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