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EMT and cancer

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https://www.readbyqxmd.com/read/28812296/mxr7-facilitates-liver-cancer-metastasis-via-epithelial-mesenchymal-transition
#1
Guishuai Lv, Yexiong Tan, Hongwei Lv, Tian Fang, Changzheng Wang, Ting Li, Yanting Yu, Congli Hu, Wen Wen, Hongyang Wang, Wen Yang
MXR7 is a cell-surface protein and highly expressed in hepatocellular carcinoma (HCC). The aim of this study is to determine the expression profile of MXR7 in HCC and investigate the influence of MXR7 on invasion and metastasis of HCC cells. For this purpose, immunohistochemical assay was used to identify the differential expression of MXR7 in 94 HCC specimens. Expression of MXR7 in 4 pairs of HCC and portal vein tumor thrombus (PVTT) was also tested. The motility of HCC cells were characterized by transwell migration and matrigel invasion assays...
August 11, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28811578/an-epithelial-to-mesenchymal-transition-inducing-potential-of-granulocyte-macrophage-colony-stimulating-factor-in-colon-cancer
#2
Yaqiong Chen, Zhi Zhao, Yu Chen, Zhonglin Lv, Xin Ding, Renxi Wang, He Xiao, Chunmei Hou, Beifen Shen, Jiannan Feng, Renfeng Guo, Yan Li, Hui Peng, Gencheng Han, Guojiang Chen
Growing evidence shows that granulocyte macrophage colony-stimulating factor (GM-CSF) has progression-promoting potentials in certain solid tumors, which is largely attributed to the immunomodulatory function of this cytokine in tumor niches. However, little is known about the effect of GM-CSF on cancer cells. Herein, we show that chronic exposure of colon cancer cells to GM-CSF, which harbor its receptor, leads to occurrence of epithelial to mesenchymal transition (EMT), in time and dose-dependent manners...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811384/loss-of-spdef-and-gain-of-tgfbi-activity-after-androgen-deprivation-therapy-promote-emt-and-bone-metastasis-of-prostate-cancer
#3
Wei-Yu Chen, Yuan-Chin Tsai, Hsiu-Lien Yeh, Florent Suau, Kuo-Ching Jiang, Ai-Ning Shao, Jiaoti Huang, Yen-Nien Liu
Androgen deprivation therapy (ADT) targeting the androgen receptor (AR) is a standard therapeutic regimen for treating prostate cancer. However, most tumors progress to metastatic castration-resistant prostate cancer after ADT. We identified the type 1, 2, and 4 collagen-binding protein transforming growth factor-β (TGFβ)-induced protein (TGFBI) as an important factor in the epithelial-to-mesenchymal transition (EMT) and malignant progression of prostate cancer. In prostate cancer cell lines, AR signaling stimulated the activity of the transcription factor SPDEF, which repressed the expression of TGFBI ADT, AR antagonism, or overexpression of TGFBI inhibited the activity of SPDEF and enhanced the proliferation rates of prostate cancer cells...
August 15, 2017: Science Signaling
https://www.readbyqxmd.com/read/28811330/epithelial-to-mesenchymal-and-mesenchymal-to-epithelial-transition-in-mesenchymal-tumors-a-paradox-in-sarcomas
#4
REVIEW
Giuseppina Sannino, Aruna Marchetto, Thomas Kirchner, Thomas G P Grünewald
The epithelial-to-mesenchymal transition (EMT) is a reversible process comprised of various subprograms via which epithelial cells reduce their intercellular adhesions and proliferative capacity while gaining a mesenchymal phenotype with increased migratory and invasive properties. This process has been well described in several carcinomas, which are cancers of epithelial origin, and is crucial to metastatic tumor cell dissemination and drug resistance. In contrast, the precise role of EMT-related processes in tumors originating from mesenchymal tissues, such as bone and soft-tissues sarcomas, is still largely unclear...
August 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#5
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28810836/suppression-of-agr2-in-a-tgf-%C3%AE-induced-smad-regulatory-pathway-mediates-epithelial-mesenchymal-transition
#6
Lucia Sommerova, Eva Ondrouskova, Borivoj Vojtesek, Roman Hrstka
BACKGROUND: During cancer progression, epithelial cancer cells can be reprogrammed into mesenchymal-like cells with increased migratory potential through the process of epithelial-mesenchymal transition (EMT), representing an essential step of tumor progression towards metastatic state. AGR2 protein was shown to regulate several cancer-associated processes including cellular proliferation, survival and drug resistance. METHODS: The expression of AGR2 was analyzed in cancer cell lines exposed to TGF-β alone or to combined treatment with TGF-β and the Erk1/2 inhibitor PD98059 or the TGF-β receptor specific inhibitor SB431542...
August 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28810656/hypoxia-inducible-factor-1%C3%AE-participates-in-hypoxia-induced-epithelial-mesenchymal-transition-via-response-gene-to-complement-32
#7
Liang Zhu, Qiu Zhao
The aim of the present study was to explore the function of response gene to complement 32 (RGC-32) in hypoxia-induced epithelial-mesenchymal transition (EMT) in pancreatic cancer. Three kinds of hypoxia-inducible factor 1α (HIF-1α) small interfering (si)RNA were synthesized and the different effects on the expression of HIF-1α were detected by western blotting. In human pancreatic cancer BxPC-3 cells, HIF-1α levels were diminished using siRNA transfection or HIF-1α inhibitor pretreatment, and the expression levels of RGC-32 and EMT-associated proteins were analyzed using reverse transcription-quantitative polymerase chain reaction and western blotting...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810650/glutathione-s-transferase-a1-mediates-nicotine-induced-lung-cancer-cell-metastasis-by-promoting-epithelial-mesenchymal-transition
#8
Wei Wang, Feiyu Liu, Chaoyang Wang, Chengde Wang, Yijun Tang, Zhongmin Jiang
The present study aimed to investigate the effect of glutathione S-transferase A1 (GSTA1) on lung cancer cell viability, invasion and adhesion in the presence of nicotine in vitro. Furthermore, the effect of GSTA1 on the epithelial-mesenchymal transition (EMT), a process strongly associated with lung cancer metastasis, was examined. Human lung carcinoma A549 cells were treated with various concentrations of nicotine (0.01, 0.1, 1 and 10 µM) and levels of GSTA1 mRNA and protein were measured by reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810526/microrna-374c-5p-regulates-the-invasion-and-migration-of-cervical-cancer-by-acting-on-the-foxc1-snail-pathway
#9
Yi Huang, Hao Huang, Mojuan Li, Xiuqing Zhang, Yusong Liu, Yifeng Wang
Some microRNAs (miRNAs) have been implicated in cervical cancer development and progression. However, the roles and mechanisms of several miRNAs in epithelial-mesenchymal transition (EMT) in cervical cancer remain poorly understood. Here, we conducted a microarray analysis and found that miR-374c-5p was most down-regulated miRNA in TGFβ1-treated cervical cancer cells compared to the expression in parental cell lines. Ectopic overexpression of miR-374c-5p inhibited cervical cancerl invasion and migration in TGFβ1- treated cervical cancer cells...
August 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28808957/differential-effect-of-tgf%C3%AE-on-the-proteome-of-cancer-associated-fibroblasts-and-cancer-epithelial-cells-in-a-co-culture-approach-a-short-report
#10
Maria Magdalena Koczorowska, Charlotte Friedemann, Klaus Geiger, Marie Follo, Martin Lothar Biniossek, Oliver Schilling
BACKGROUND: Solid tumors contain various components that together form the tumor microenvironment. Cancer associated fibroblasts (CAFs) are capable of secreting and responding to signaling molecules and growth factors. Due to their role in tumor development, CAFs are considered as potential therapeutic targets. A prominent tumor-associated signaling molecule is transforming growth factor β (TGFβ), an inducer of epithelial-to-mesenchymal transition (EMT). The differential action of TGFβ on CAFs and ETCs (epithelial tumor cells) has recently gained interest...
August 14, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28808208/effects-of-bisphenol-compounds-on-the-growth-and-epithelial-mesenchymal-transition-of-mcf-7-cv-human-breast-cancer-cells
#11
Ji-Youn Kim, Ho-Gyu Choi, Hae-Miru Lee, Geum-A Lee, Kyung-A Hwang, Kyung-Chul Choi
Bisphenol-A (BPA) has been considered as an endocrine disrupting chemical (EDC) because it can exert estrogenic properties. For bisphenol-S (BPS) and bisphenol-F (BPF) that are BPA analogs and substitutes, their risk to estrogen-dependent cancer has been reported rarely compared with the numerous cases of BPA. In this study, we examined whether BPA, BPS, and BPF can lead to the proliferation, migration, and epithelial mesenchymal transition (EMT) of MCF-7 clonal variant (MCF-7 CV) breast cancer cells expressing estrogen receptors (ERs)...
July 13, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28807938/s100a4-is-a-biomarker-and-regulator-of-glioma-stem-cells-that-is-critical-for-mesenchymal-transition-in-glioblastoma
#12
Kin-Hoe Chow, Hee Jung Park, Joshy George, Keiko Yamamoto, Andrew D Gallup, Joel H Graber, Yuanxin Chen, Wen Jiang, Dennis Steindler, Eric G Neilson, Betty Y S Kim, Kyuson Yun
Glioma stem cells (GSCs) and epithelial-mesenchymal transition (EMT) are strongly associated with therapy resistance and tumor recurrence, but the underlying mechanisms are incompletely understood. Here we show that S100A4 is a novel biomarker of GSCs. S100A4+ cells in gliomas are enriched with cancer cells that have tumor-initiating and sphere-forming abilities, with the majority located in perivascular niches where GSCs are found. Selective ablation of S100A4-expressing cells was sufficient to block tumor growth in vitro and in vivo...
August 14, 2017: Cancer Research
https://www.readbyqxmd.com/read/28806747/low-lamin-a-expression-in-lung-adenocarcinoma-cells-from-pleural-effusions-is-a-pejorative-factor-associated-with-high-number-of-metastatic-sites-and-poor-performance-status
#13
Elise Kaspi, Diane Frankel, Julien Guinde, Sophie Perrin, Sophie Laroumagne, Andrée Robaglia-Schlupp, Kevin Ostacolo, Karim Harhouri, Rachid Tazi-Mezalek, Joelle Micallef, Hervé Dutau, Pascale Tomasini, Annachiara De Sandre-Giovannoli, Nicolas Lévy, Pierre Cau, Philippe Astoul, Patrice Roll
The type V intermediate filament lamins are the principal components of the nuclear matrix, including the nuclear lamina. Lamins are divided into A-type and B-type, which are encoded by three genes, LMNA, LMNB1, and LMNB2. The alternative splicing of LMNA produces two major A-type lamins, lamin A and lamin C. Previous studies have suggested that lamins are involved in cancer development and progression. A-type lamins have been proposed as biomarkers for cancer diagnosis, prognosis, and/or follow-up. The aim of the present study was to investigate lamins in cancer cells from metastatic pleural effusions using immunofluorescence, western blotting, and flow cytometry...
2017: PloS One
https://www.readbyqxmd.com/read/28806534/knockdown-of-snail-inhibits-epithelial-mesenchymal-transition-of-human-laryngeal-squamous-cell-carcinoma-hep-2-cells-through-vdr-signaling-pathway
#14
Xue Zhao, Dan Yu, Jingpu Yang, Kai Xue, Yan Liu, Chunshun Jin
It has been well-documented that Snail plays a decisive role in various tumors. However, the direct effect of Snail on laryngeal squamous cell carcinoma (LSCC) has not been elaborated. In this study, we firstly detected the expression of Snail in 14 samples of patients with LSCC and found that its content was high in cancer tissues compared with adjacent tissues. Then we established LSCC Hep-2 cells with Snail silencing and validated the knockdown efficiency by western blotting and real-time PCR. Results showed that silencing of Snail significantly inhibited the ability of adhesion, migration, and invasion of Hep-2 cells...
August 14, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28805661/the-foxn3-neat1-sin3a-repressor-complex-promotes-progression-of-hormonally-responsive-breast-cancer
#15
Wanjin Li, Zihan Zhang, Xinhua Liu, Xiao Cheng, Yi Zhang, Xiao Han, Yu Zhang, Shumeng Liu, Jianguo Yang, Bosen Xu, Lin He, Luyang Sun, Jing Liang, Yongfeng Shang
The pathophysiological function of the forkhead transcription factor FOXN3 remains to be explored. Here we report that FOXN3 is a transcriptional repressor that is physically associated with the SIN3A repressor complex in estrogen receptor-positive (ER+) cells. RNA immunoprecipitation-coupled high-throughput sequencing identified that NEAT1, an estrogen-inducible long noncoding RNA, is required for FOXN3 interactions with the SIN3A complex. ChIP-Seq and deep sequencing of RNA genomic targets revealed that the FOXN3-NEAT1-SIN3A complex represses genes including GATA3 that are critically involved in epithelial-to-mesenchymal transition (EMT)...
August 14, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28804564/incrna-h19-promotes-tongue-squamous-cell-carcinoma-progression-through-%C3%AE-catenin-gsk3%C3%AE-emt-signaling-via-association-with-ezh2
#16
Da-Ming Zhang, Zhao-Yu Lin, Zhao-Hui Yang, You-Yuan Wang, Di Wan, Jiang-Long Zhong, Pei-Lin Zhuang, Zhi-Quan Huang, Bin Zhou, Wei-Liang Chen
H19 is involved in tumor metastasis and associated with tumor progression. Enhancer of zest homolog 2 (EZH2) is overexpressed in multiple cancer types and correlates with tumor proliferation, epithelial-mesenchymal transition, and poor prognosis. However, the interaction between H19 and EZH2 to promote tongue squamous cell carcinoma (TSCC) progression remains largely uncharacterized. Insitu hybridization and quantitative reverse-transcription PCR (qRT-PCR) were performed to measure H19 expression in primary TSCC and adjacent normal tissues and cell lines...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804523/tri-methylation-of-h3k79-is-decreased-in-tgf-%C3%AE-1-induced-epithelial-to-mesenchymal-transition-in-lung-cancer
#17
Emilie Evanno, Julie Godet, Nathalie Piccirilli, Joëlle Guilhot, Serge Milin, Jean Marc Gombert, Benoit Fouchaq, Joëlle Roche
BACKGROUND: The epithelial-to-mesenchymal transition (EMT) enables epithelial cancer cells to acquire mesenchymal features and contributes to metastasis and resistance to treatment. This process involves epigenetic reprogramming for gene expression. We explored global histone modifications during TGF-β1-induced EMT in two non-small cell lung cancer (NSCLC) cell lines and tested different epigenetic treatment to modulate or partially reverse EMT. RESULTS: Loss of classical epithelial markers and gain of mesenchymal markers were verified in A549 and H358 cell lines during TGF-β1-induced EMT...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28803991/dhea-increases-epithelial-markers-and-decreases-mesenchymal-proteins-in-breast-cancer-cells-and-reduces-xenograft-growth
#18
Zaira Colín-Val, Viridiana Yazmín González-Puertos, Criselda Mendoza-Milla, Erika Olivia Gómez, Claudia Huesca-Gómez, Rebeca López-Marure
Breast cancer is one of the most common neoplasias and the leading cause of cancer death in women worldwide. Its high mortality rate is linked to a great metastatic capacity associated with the epithelial-mesenchymal transition (EMT). During this process, a decrease in epithelial proteins expression and an increase of mesenchymal proteins are observed. On the other hand, it has been shown that dehydroepiandrosterone (DHEA), the most abundant steroid in human plasma, inhibits migration of breast cancer cells; however, the underlying mechanisms have not been elucidated...
August 10, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28803245/mir-143-5p-deficiency-triggers-emt-and-metastasis-by-targeting-hif-1%C3%AE-in-gallbladder-cancer
#19
Min He, Ming Zhan, Wei Chen, Sunwang Xu, Manmei Long, Hui Shen, Yongheng Shi, Qiang Liu, Man Mohan, Jian Wang
BACKGROUND/AIMS: Early metastasis plays a pivotal role in tumor-caused death in gallbladder cancer (GBC) patients. Increasing evidence suggest that miR-143-5p is an active player involved in cancer metastasis and a potential therapeutic target. However, its role in the development of GBC cells remains unclear. The aim of this study is to reveal the inhibiting effects of miR-143-5p on the proliferation and metastasis in GBC. METHODS: Quantitative real-time PCR were used to investigate miR-143-5p and its target HIF-1α mRNA levels...
August 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28803067/ppargc1a-is-upregulated-and-facilitates-lung-cancer-metastasis
#20
Jin-Dong Li, Qing-Chuan Feng, Yu Qi, Guanghui Cui, Song Zhao
Lung cancer remains a leading cause of cancer-related mortality, with metastatic progression remaining the single largest cause of lung cancer mortality. Hence it is imperative to determine reliable biomarkers for lung cancer prognosis. We performed quantitative real-time PCR (qRT-PCR) analysis to explore epithelial-mesenchymal transition (EMT) inducers that regulate EMT process in three patients with advanced lung cancer disease. Peroxisome proliferator-activated receptor gamma (PPARGC1A) was uniformly the topmost overexpressed gene in all three human non-small cell lung cancer (NSCLC) patient samples...
August 9, 2017: Experimental Cell Research
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