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Epithelial mesenchymal transformation

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https://www.readbyqxmd.com/read/29780673/breast-fibroblasts-in-both-cancer-and-normal-tissues-induce-phenotypic-transformation-of-breast-cancer-stem-cells-a-preliminary-study
#1
Bixiao Wang, Chunfang Xi, Mingwei Liu, Haichen Sun, Shuang Liu, Lei Song, Hua Kang
Background: Breast cancer stem cells (BCSCs) are associated with the invasion of breast cancer. In recent years, studies have demonstrated different phenotypes among BCSCs. Furthermore, BCSCs of diverse phenotypes are present at different tumour sites and different histological stages. Fibroblasts are involved in the phenotypic transformation of BCSCs. Cancer-associated fibroblasts (CAFs) participate in the induction of epithelial-mesenchymal transition, thereby promoting the acquisition of stem cell characteristics, but little is known about the role of normal fibroblasts (NFs) in the phenotypic transformation of BCSCs or about the effect of CAFs and NFs on BCSC phenotypes...
2018: PeerJ
https://www.readbyqxmd.com/read/29777784/cd146-mediates-an-e-cadherin-to-n-cadherin-switch-during-tgf-%C3%AE-signaling-induced-epithelial-mesenchymal-transition
#2
Yanbin Ma, Haofeng Zhang, Chaoliang Xiong, Zheng Liu, Qingji Xu, Jing Feng, Jun Zhang, Zhaoqing Wang, Xiyun Yan
Cadherin switch is an initiating factor of epithelial-mesenchymal transition (EMT) and is intimately correlated with cancer metastatic potential; however, its underlying mechanisms remain unclear. Here, using a transforming growth factor-β (TGF-β)-induced EMT model, we provide explicit evidence that CD146, with elevated expression and activity in a variety of cancers, is a key factor involved in the cadherin switch. We show that CD146 can be induced by TGF-β signaling. Moreover, CD146 expression is positively correlated with the activation levels of STAT3/Twist and ERK pathways...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29776755/neutral-ph-and-low-glucose-degradation-product-dialysis-fluids-induce-major-early-alterations-of-the-peritoneal-membrane-in-children-on-peritoneal-dialysis
#3
Betti Schaefer, Maria Bartosova, Stephan Macher-Goeppinger, Peter Sallay, Peter Vörös, Bruno Ranchin, Karel Vondrak, Gema Ariceta, Ariane Zaloszyc, Aysun K Bayazit, Uwe Querfeld, Rimante Cerkauskiene, Sara Testa, Christina Taylan, Johan VandeWalle, YokChin Yap, Rafael T Krmar, Rainer Büscher, Anne K Mühlig, Dorota Drozdz, Salim Caliskan, Felix Lasitschka, Sahar Fathallah-Shaykh, Enrico Verrina, Günter Klaus, Klaus Arbeiter, Raj Bhayadia, Anette Melk, Philipp Romero, Bradley A Warady, Franz Schaefer, Akos Ujszaszi, Claus Peter Schmitt
The effect of peritoneal dialysates with low-glucose degradation products on peritoneal membrane morphology is largely unknown, with functional relevancy predominantly derived from experimental studies. To investigate this, we performed automated quantitative histomorphometry and molecular analyses on 256 standardized peritoneal and 172 omental specimens from 56 children with normal renal function, 90 children with end-stage kidney disease at time of catheter insertion, and 82 children undergoing peritoneal dialysis using dialysates with low-glucose degradation products...
May 15, 2018: Kidney International
https://www.readbyqxmd.com/read/29774544/functional-molecules-in-mesothelial-to-mesenchymal-transition-revealed-by-transcriptome-analyses
#4
Sara Namvar, Adrian S Woolf, Leo A H Zeef, Thomas Wilm, Bettina Wilm, Sarah E Herrick
Peritoneal fibrosis is a common complication of abdominal and pelvic surgery, and can also be triggered by peritoneal dialysis, resulting in treatment failure. In these settings, fibrosis is driven by activated myofibroblasts that are considered to be partly derived by mesothelial-to-mesenchymal transition (MMT). We hypothesised that if the molecular signature of MMT could be better defined, these insights could be exploited to block this pathological cellular transition. Rat peritoneal mesothelial cells were purified, using an antibody to HBME1, a protein present on mesothelial cell microvilli, and streptavidin nanobead technology...
May 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29774214/the-expression-of-aqp1-is-modified-in-lung-of-patients-with-idiopathic-pulmonary-fibrosis-addressing-a-possible-new-target
#5
Ana Galán-Cobo, Elena Arellano-Orden, Rocío Sánchez Silva, José Luis López-Campos, César Gutiérrez Rivera, Lourdes Gómez Izquierdo, Nela Suárez-Luna, María Molina-Molina, José A Rodríguez Portal, Miriam Echevarría
Activation of the epithelial-mesenchymal transition process (EMT) by which alveolar cells in human lung tissue undergo differentiation giving rise to a mesenchymal phenotype (fibroblast/miofibroblasts) has been well recognized as a key element in the origin of idiopathic pulmonary fibrosis (IPF). Here we analyzed expression of AQP1 in lung biopsies of patients diagnosed with IPF, and compared it to biopsies derived from patients with diverse lung pneumonies, such as hypersensitivity pneumonitis, sarcoidosis or normal lungs...
2018: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/29774119/periostin-a-signal-transduction-intermediate-in-tgf-%C3%AE-induced-emt-in-u-87mg-human-glioblastoma-cells-and-its-inhibition-by-anthocyanidins
#6
Amira Ouanouki, Sylvie Lamy, Borhane Annabi
Periostin is a secreted protein that is highly expressed in glioblastoma cells as compared to normal brain tissue, and is therefore considered as a potential biomarker in therapeutic modalities. Its contribution in the cancer cells invasive phenotype is, however, poorly understood. This work investigates the role of periostin in U-87 MG glioblastoma cell invasion, cell migration and in Transforming Growth Factor β (TGF-β)-induced epithelial-mesenchymal transition (EMT). Periostin gene silencing, using small interfering RNA, decreased TGF-β-induced mesenchymal marker expression of fibronectin and vimentin, partly through reduced Smad2, Akt and Fak phosphorylation as well as U-87 MG cell invasion and migration...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774079/long-non-coding-rnas-ac026904-1-and-uca1-a-one-two-punch-for-tgf-%C3%AE-induced-snai2-activation-and-epithelial-mesenchymal-transition-in-breast-cancer
#7
Guo-Yin Li, Wei Wang, Jian-Yong Sun, Bo Xin, Xiang Zhang, Ting Wang, Qian-Feng Zhang, Li-Bo Yao, Hua Han, Dai-Ming Fan, An-Gang Yang, Lin-Tao Jia, Lei Wang
Transforming growth factor-β (TGF-β) has received much attention as a major inducer of epithelial-mesenchymal transition (EMT) during cancer progression, mainly by activating a set of pleiotropic transcription factors including SNAI2/Slug. However, the involvement of long non-coding RNAs (lncRNAs) in TGF-β-induced Slug activation and EMT remains largely unknown. Methods: In this study, we used microarray analysis to compare lncRNA expression profiles between TGF-β treated and untreated breast cancer cells...
2018: Theranostics
https://www.readbyqxmd.com/read/29772238/tgf-%C3%AE-1-induced-fascin1-expression-facilitates-the-migration-and-invasion-of-kidney-carcinoma-cells-through-erk-and-jnk-signaling-pathways
#8
Jianyu Yang, Naiwen Zhang, Ruxu Gao, Yuyan Zhu, Zhe Zhang, Xiaolong Xu, Jianfeng Wang, Zeliang Li, Xiankui Liu, Zhenhua Li, Jun Li, Jianbin Bi, Chuize Kong
Transforming growth factor-β1 (TGF-β1) plays a crucial role in the signaling network that controls cellular invasion and motility capability during tumor development. To investigate whether fascin1 plays a crucial role in TGF-β1-facilitated invasion and migration of kidney cancer cells (KCC), real-time PCR and western blotting were used to test the fascin1 expression after TGF-β1 treatment (10 ng/ml) in 769-P and OSRC cells. Fascin1 was silenced using the small interfering RNA (siRNA) technique. Cytoskeleton staining was used to test the change of Cytoskeleton...
May 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29771147/gpf15-promotes-epithelial-to-mesenchymal-transition-in-colorectal-carcinoma
#9
Yifei Zhang, Xixun Wang, Menglai Zhang, Zhenbin Zhang, Lixin Jiang, Leping Li
Growth differentiation factor 15 (GDF15) is a divergent member of the transforming growth factor-β (TGF-β) superfamily that has been associated with colorectal cancers (CRC). However, the role of GDF15 in the progression of CRC remains unknown. We demonstrated that GDF15 expression was higher in fresh CRC tissues than in adjacent normal tissues. Moreover, we found that GDF15 overexpression significantly facilitated cell viability, cell invasion and migration (p < .01 or p < .05). The protein expression of N-cadherin, vimentin and Twist1 were up-regulated by GDF15 overexpression, while E-cadherin was down-regulated...
May 17, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29770167/reactive-oxygen-species-mediated-tumor-microenvironment-transformation-the-mechanism-of-radioresistant-gastric-cancer
#10
REVIEW
Huifeng Gu, Tianhe Huang, Yicheng Shen, Yin Liu, Fuling Zhou, Yanxia Jin, Haseeb Sattar, Yongchang Wei
Radioresistance is one of the primary causes responsible for therapeutic failure and recurrence of cancer. It is well documented that reactive oxygen species (ROS) contribute to the initiation and development of gastric cancer (GC), and the levels of ROS are significantly increased in patients with GC accompanied with abnormal expressions of multiple inflammatory factors. It is also well documented that ROS can activate cancer cells and inflammatory cells, stimulating the release of a variety of inflammatory cytokines, which subsequently mediates the tumor microenvironment (TME) and promotes cancer stem cell (CSC) maintenance as well as renewal and epithelial-mesenchymal transition (EMT), ultimately resulting in radioresistance and recurrence of GC...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29768059/pentabromopseudilin-a-myosin-v-inhibitor-suppresses-tgf-%C3%AE-activity-by-recruiting-the-type-ii-tgf-%C3%AE-receptor-to-lysosomal-degradation
#11
Wang Shih-Wei, Chung Chih-Ling, Yu-Chen Kao, René Martin, Hans-Joachim Knölker, Meng-Shin Shiao, Chun-Lin Chen
Pentabromopseudilin (PBrP) is a marine antibiotic isolated from the marine bacteria Pseudomonas bromoutilis and Alteromonas luteoviolaceus. PBrP exhibits antimicrobial, anti-tumour, and phytotoxic activities. In mammalian cells, PBrP is known to act as a reversible and allosteric inhibitor of myosin Va (MyoVa). In this study, we report that PBrP is a potent inhibitor of transforming growth factor-β (TGF-β) activity. PBrP inhibits TGF-β-stimulated Smad2/3 phosphorylation, plasminogen activator inhibitor-1 (PAI-1) protein production and blocks TGF-β-induced epithelial-mesenchymal transition in epithelial cells...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29761840/ginsenoside-rg1-ameliorates-liver-fibrosis-via-suppressing-epithelial-to-mesenchymal-transition-and-reactive-oxygen-species-production-in-vitro-and-in-vivo
#12
Xiaoyu Wei, Yatang Chen, Wenxiang Huang
Liver fibrosis remains a major cause of morbidity and mortality with a complicated etiology and notorious complications, but there is a lack of efficacious therapeutics. Epithelial to mesenchymal transition (EMT) has a central role in the course of liver fibrosis, and thus, prevention of the development of EMT may control and even reverse liver fibrosis. This study aimed to examine the beneficial effect of ginsenoside Rg1, a phrenological active component isolated from Ginseng, and interrogate the mechanism in vitro and in vivo, with a focus on transforming growth factor-β (TGF-β)/Smad and Nrf2-mediated signaling pathways...
May 15, 2018: BioFactors
https://www.readbyqxmd.com/read/29750298/role-of-smad3-signaling-in-the-epithelial%C3%A2-mesenchymal-transition-of-the-lens-epithelium-following-injury
#13
Fanlan Meng, Jun Li, Xiao Yang, Xiaoyong Yuan, Xin Tang
Transforming growth factor‑β (TGF‑β) is important in the development of posterior capsule opacification (PCO), and inhibition of the TGF‑β pathway may represent a novel method of treating PCO. Drosophila protein, mothers against decapentaplegic homolog 3 (Smad3) is a phosphorylated receptor‑activated Smad required for the transmission of TGF‑β signals. Smad3 knockout (KO) disturbs the activation of TGF‑β signaling, thus inhibiting the onset of PCO. In the present study, lens epithelial cell (LEC) damage induced by extracapsular cataract extraction was simulated by puncture of the anterior capsule using a 26‑gauge hypodermic needle...
May 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29749520/silencing-of-urg11-expression-inhibits-the-proliferation-and-epithelial%C3%A2-mesenchymal-transition-in-benign-prostatic-hyperplasia-cells-via-the-rhoa-rock1-pathway
#14
Guanying Zhang, Feng Zhu, Guangye Han, Zeyu Li, Quanfeng Yu, Zhenhui Li, Jianchang Li
Upregulated gene 11 (URG11) represents a gene upregulated by hepatitis B virus X protein and is involved in the biological processes of multifarious tumors. The present study aimed to investigate the protective effects and regulatory mechanisms of URG11 in benign prostatic hyperplasia (BPH). URG11, Ras homolog family member A (RhoA) and Rho‑associated protein kinase 1 (ROCK1) expression was detected in patients with BPH using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). Furthermore, URG11 expression was silenced using URG11‑targeting small interfering RNAs...
May 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29749509/long-noncoding-rna-kcnq1ot1-promotes-proliferation-and-epithelial%C3%A2-mesenchymal-transition-by-regulation-of-smad4-expression-in-lens-epithelial-cells
#15
Bin Chen, Jian Ma, Chunwei Li, Yong Wang
Long noncoding RNAs (lncRNAs) are associated with various diseases including cataracts. The role of lncRNA potassium voltage‑gated channel subfamily Q member 1 opposite strand/antisense transcript 1 (KCNQ1OT1) on lens epithelial cell (LEC) proliferation and epithelial‑mesenchymal transition (EMT) in cataracts disease remains unclear. In the present study, KCNQ1OT1 and mothers against decapentaplegic homolog (SMAD)4 expression levels were upregulated in human cataract lens posterior capsular samples and in transforming growth factor (TGF)‑β2‑treated SRA01/04 cells, as demonstrated by reverse transcription‑quantitative polymerase chain reaction, immunohistochemical staining and western blot analyses...
May 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29748568/carf-enrichment-promotes-epithelial-mesenchymal-transition-via-wnt-%C3%AE-catenin-signaling-its-clinical-relevance-and-potential-as-a-therapeutic-target
#16
Rajkumar S Kalra, Anupama Chaudhary, A-Rum Yoon, Priyanshu Bhargava, Amr Omar, Sukant Garg, Chae-Ok Yun, Sunil C Kaul, Renu Wadhwa
CARF (Collaborator of ARF)/CDKN2AIP was discovered as a novel ARF-binding protein. It has been established as an essential cell survival, p53-, and cell proliferation-regulatory protein. Although a moderate upregulation of CARF caused growth arrest and senescence, its excessively enriched levels were shown to facilitate aggressive proliferation and malignant transformation of cancer cells. Here, we examined the relevance of CARF levels in clinical tumors and found its amplification (both at gene and transcript levels) in a variety of invasive and metastatic malignancies...
May 11, 2018: Oncogenesis
https://www.readbyqxmd.com/read/29747422/role-of-bone-morphogenetic-protein-7-bmp7-in-the-modulation-of-corneal-stromal-and-epithelial-cell-functions
#17
Bhavani S Kowtharapu, Ruby Kala Prakasam, Radovan Murín, Dirk Koczan, Thomas Stahnke, Andreas Wree, Anselm G M Jünemann, Oliver Stachs
In the cornea, healing of the wounded avascular surface is an intricate process comprising the involvement of epithelial, stromal and neuronal cell interactions. These interactions result to the release of various growth factors that play prominent roles during corneal wound healing response. Bone morphogenetic proteins (BMPs) are unique multi-functional potent growth factors of the transforming growth factor-beta (TGF-&beta;) superfamily. Treatment of corneal epithelial cells with substance P and nerve growth factor resulted to an increase in the expression of BMP7 mRNA...
May 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29740212/ldh-apromotes-epithelial-mesenchymal-transition-by-upregulating-zeb2-in-intestinal-type-gastric-cancer
#18
Yongjie Zhang, Sen Lin, Yan Chen, Fei Yang, Shenlin Liu
Introduction: Epithelial-mesenchymal transition (EMT) is regarded as a crucial process of invasion and metastasis, which contribute greatly to cancer-related relapse and death. Based on research results that hypoxia can trigger gastric cancer EMT and decreasing lactate production can selectively kill hypoxic cancer cells, we infer that lactate dehydrogenase A (LDH-A) transforming pyruvate into lactate is at least in part responsible for poor prognosis of gastric cancer. Materials and methods: We used siRNA to knock down LDH-A in intestinal-type gastric cancer (ITGC) cell lines SGC7901 and BGC823...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29739365/histone-methyltransferase-setdb1-promotes-cells-proliferation-and-migration-by-interacting-withtiam1-in-hepatocellular-carcinoma
#19
Yuqin Zhang, Jing Huang, Qisheng Li, Keli Chen, Yonghao Liang, Zetao Zhan, Feng Ye, Wen Ni, Longhua Chen, Yi Ding
BACKGROUND: SETDB1 is a histone H3K9 methyltransferase, which plays a significant role in the occurrence and progression of tumors. Previous studies have confirmed that T-lymphom invasion and metastasis gene (Tiam1) is a protein associated with the metastasis of hepatocellular carcinoma (HCC); however, we have not yet been successful in elucidating the specific mechanism of HCC. METHODS: Yeast two-hybrid test was conducted to screen proteins that interacted with Tiam1 gene...
May 8, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29738069/knockdown-of-beclin-1-impairs-epithelial-mesenchymal-transition-of-colon-cancer-cells
#20
Hong Shen, Ling Yin, Ganlu Deng, Cao Guo, Ying Han, Yiyi Li, Changjing Cai, Yaojie Fu, Shanshan Liu, Shan Zeng
Activation of autophagy significantly affects cancer cell behaviors, such as proliferation, differentiation, and invasiveness. Epithelial-to-mesenchymal transition (EMT) as an initial step of malignant transformation of cancer cells was linked to the activation of autophagy, but the detailed molecular mechanisms are still unknown. The present study investigates the effects of Beclin-1, a key molecule involved in activation of autophagy, on EMT of colon cancer cells. The normal colon epithelia cell line of CCD-18Co and six colon cancer cell lines with different expression levels of Beclin-1 were used in this study...
May 8, 2018: Journal of Cellular Biochemistry
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