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EMT and cancer

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https://www.readbyqxmd.com/read/28079609/mesenchymal-stem-cells-induce-epithelial-mesenchymal-transition-in-melanoma-by-paracrine-secretion-of-transforming-growth-factor-%C3%AE
#1
Chuan Lv, Haiying Dai, Mengyan Sun, Hui Zhao, Kai Wu, Ji Zhu, Yuchong Wang, Xian Cao, Zhaofan Xia, Chunyu Xue
Mesenchymal stem cells (MSCs) are considered for potential use as an ideal vehicle to efficiently deliver therapeutic agents in treatment against cancers including melanoma. However, emerging evidence indicates that MSCs promote tumor growth and progression. Therefore, a comprehensive understanding of the role of MSCs is very important to evaluate the MSCs-based therapy in melanoma. B16 melanoma cells treated by MSC conditioned medium (CM), showed significantly enhanced migration and invasion, which was also confirmed in a lung metastasis mice model in vivo...
January 5, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28079253/epithelial-mesenchymal-transition-emt-a-biological-process-in-the-development-stem-cell-differentiation-and-tumorigenesis
#2
REVIEW
Tong Chen, Yanan You, Hua Jiang, Zack Z Wang
The lineage transition between epithelium and mesenchyme is a process known as epithelial-mesenchymal transition (EMT), by which polarized epithelial cells lose their adhesion property and obtain mesenchymal cell phenotypes. EMT is a biological process that is often involved in embryogenesis and diseases, such as cancer invasion and metastasis. The EMT and the reverse process, mesenchymal-epithelial transition (MET), also play important roles in stem cell differentiation and de-differentiation (or reprogramming)...
January 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28078601/inhibition-of-epithelial-mesenchymal-transition-and-metastasis-by-combined-tgfbeta-knockdown-and-metformin-treatment-in-a-canine-mammary-cancer-xenograft-model
#3
Camila Leonel, Thaiz Ferraz Borin, Lívia de Carvalho Ferreira, Marina Gobbe Moschetta, Marcio Chaim Bajgelman, Alicia M Viloria-Petit, Debora Aparecida Pires de Campos Zuccari
Epithelial mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce EMT. Metformin, has been shown to inhibit EMT in breast cancer cells. Based on this evidence we hypothesize that treatment with metformin and the silencing of TGF-β, inhibits the EMT in cancer cells. Canine metastatic mammary tumor cell line CF41 was stably transduced with a shRNA-lentivirus, reducing expression level of TGF-β1...
January 11, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28077929/hnrnpa2b1-regulates-the-epithelial-mesenchymal-transition-in-pancreatic-cancer-cells-through-the-erk-snail-signalling-pathway
#4
Shengjie Dai, Jie Zhang, Shihao Huang, Bin Lou, Binbo Fang, Tingting Ye, Xince Huang, Bicheng Chen, Mengtao Zhou
BACKGROUND: Heterogeneous nuclear ribonucleoprotein A2B1 (HNRNPA2B1) is closely related to tumour occurrence and development, oncogene expression, apoptosis inhibition and invasion and metastasis capacities. However, its function in the epithelial-mesenchymal transition (EMT) of pancreatic cancer is not fully understood. METHODS: By comparing various wild-type pancreatic cancer cell lines, we determined which have a higher expression level of HNRNPA2B1 accompanied by the higher expression of N-cadherin and vimentin and lower expression of E-cadherin...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28077595/long-non-coding-rna-linc00152-promotes-gallbladder-cancer-metastasis-and-epithelial-mesenchymal-transition-by-regulating-hif-1%C3%AE-via-mir-138
#5
Qiang Cai, Zhenqiang Wang, Shouhua Wang, Mingzhe Weng, Di Zhou, Chen Li, Jiandong Wang, Erzhen Chen, Zhiwei Quan
Long non-coding RNA LINC00152 had been reported as an oncogene in gastric and hepatocellular cancer. In this study, we show that LINC00152 is overexpressed in gallbladder cancer (GBC) tissue samples and cell lines. The high LINC00152 levels correlated negatively with the overall survival time in GBC patients. Functionally, LINC00152 dramatically promoted cell migration, invasion and epithelial-mesenchymal transition (EMT) progression in vitro. In vivo, LINC00152 overexpression significantly promoted tumour peritoneal spreading and metastasis...
January 2017: Open Biology
https://www.readbyqxmd.com/read/28076840/hif-1%C3%AE-induces-the-epithelial-mesenchymal-transition-in-gastric-cancer-stem-cells-through-the-snail-pathway
#6
Shi-Wei Yang, Zhi-Gang Zhang, Ying-Xue Hao, Yong-Liang Zhao, Feng Qian, Yan Shi, Ping-Ang Li, Chun-Yang Liu, Pei-Wu Yu
Substantial evidence suggests that the epithelial-mesenchymal transition (EMT) phenotype is associated with the invasive characteristics of cancer stem cells (CSCs),which possess an EMT phenotype that may predominate in tumor invasion and metastasis. However, the mechanisms for the generation and regulation of these CSCs have not been clearly defined. As hypoxia and EMT-related factors may have important functions in EMT-like CSCs, the aim of this study was to investigate the effects of hypoxia on these cells...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28076331/a-short-term-intervention-with-selenium-affects-expression-of-genes-implicated-in-the-epithelial-to-mesenchymal-transition-in-the-prostate
#7
Dieuwertje E G Kok, Lambertus A L M Kiemeney, Gerald W Verhaegh, Jack A Schalken, Emile N J T van Lin, J P Michiel Sedelaar, J Alfred Witjes, Christina A Hulsbergen-van de Kaa, Pieter Van't Veer, Ellen Kampman, Lydia A Afman
In parallel with the inconsistency in observational studies and chemoprevention trials, the mechanisms by which selenium affects prostate cancer risk have not been elucidated. We conducted a randomized, placebo-controlled trial to examine the effects of a short-term intervention with selenium on gene expression in non-malignant prostate tissue. Twenty-three men received 300 µg selenium per day in the form of selenized yeast (n=12) or a placebo (n=11) during 5 weeks. Prostate biopsies collected from the transition zone before and after intervention were analysed for 15 participants (n=8 selenium, n=7 placebo)...
January 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28075478/high-expression-of-rab43-predicts-poor-prognosis-and-is-associated-with-epithelial-mesenchymal-transition-in-gliomas
#8
Ming-Zhi Han, Bin Huang, An-Jing Chen, Xin Zhang, Ran Xu, Jian Wang, Xin-Gang Li
The Ras-related GTP-binding protein (RAB) family plays an important role in regulating signal transduction and cellular processes including vesicle transport, cytoskeleton formation and membrane trafficking. More recently, several RAB members have been reported to promote tumorigenesis in many types of cancers. However, the clinical significance and potential function of RAB43 in gliomas remain unclear. Herein, we found that RAB43 was upregulated and positively correlated with the grade of progression in glioma patients by in silico analysis and immunohistochemistry (IHC)...
January 3, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075476/silencing-of-gp73-inhibits-invasion-and-metastasis-via-suppression-of-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma
#9
Ying Yang, Qiang Liu, Hua Zhang, Huarong Zhao, Ruin Mao, Zhipeng Li, Sha Ya, Chunli Jia, Yongxing Bao
Epithelial-mesenchymal transition (EMT) is associated with invasion and metastasis of cancer cells. Golgi protein 73 (GP73) is a serum biomarker for hepatocellular carcinoma (HCC) and our previous study demonstrated that the expression of GP73 correlated with aggressive behavior and EMT molecules in HCC. However, its role in metastatic mechanism of HCC is not clear. The aim of this study was to investigate the effect of GP73 on invasion and migration, and underlying mechanism of GP73 involved in EMT of HCC...
January 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075475/mir-134-suppresses-the-migration-and-invasion-of-non%C3%A2-small-cell-lung-cancer-by-targeting-itgb1
#10
Qin Qin, Furong Wei, Jianbo Zhang, Baosheng Li
Most cancer-related deaths are caused by the development of metastatic disease. Thus, investigation of the underlying mechanisms of metastasis is urgent to design more effective targeted drugs and to treat metastatic disease more effectively. MicroRNAs (miRNAs) have emerged as potential targets for cancer treatment. In the present study, we aimed to identify the roles of miR-134 in non-small cell lung cancer (NSCLC) cell migration and invasion. We demonstrated that overexpression of miR-134 inhibited migration and invasion of A549 and H1299 cells...
January 3, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075456/hpip-silencing-inhibits-tgf-%C3%AE-1-induced-emt-in-lung-cancer-cells
#11
Shaomin Shi, Jianjun Zhao, Jing Wang, Donghui Mi, Zhongsen Ma
Epithelial-mesenchymal transition (EMT) has been reported to play an important role in the migration and invasion of tumor cells. Hematopoietic pre-B-cell leukemia transcription factor (PBX)-interacting protein (HPIP/PBXIP1) has emerged as an important regulator of the development of cancer. However, the role of HPIP in lung cancer is unclear. Thus, in the present study, we investigated the role of HPIP in transforming growth factor (TGF)-β1-induced EMT in A549 lung cancer cells in vitro. Our data demonstrated that HPIP was overexpressed in the lung cancer cell lines...
January 5, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28075454/expression-of-glia-maturation-factor-%C3%AE-is-associated-with-colorectal-cancer-metastasis-and-its-downregulation-suppresses-colorectal-cancer-cell-migration-and-invasion-in-vitro
#12
Huili Wang, Zhijiang Chen, Hongen Chang, Xiaoping Mu, Wenyu Deng, Zhaohu Yuan, Fang Yao, Yan Liu, Rongjia Mai, Bingyi Wu
Glia maturation factor γ (GMFG) functions to reorganize the actin cytoskeleton and appears to play a causative role in cell migration and adherence. The present study assessed GMFG expression in colorectal cancer cells and tissue specimens and then explored the role of GMFG in colorectal cancer progression in vitro. GMFG protein was highly expressed in colorectal cancer tissues and a metastatic colon cancer cell line. Knockdown of GMFG expression using GMFG siRNA or anti-GMFG antibody decreased the capacity of colon cancer LoVo cell migration and invasion in vitro, while recombinant GMFG treatment induced LoVo cell migration...
January 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075453/mir-375-inhibits-cancer-stem-cell-phenotype-and-tamoxifen-resistance-by-degrading-hoxb3-in-human-er-positive-breast-cancer
#13
Hui Fu, Lei Fu, Chao Xie, Wen-Shu Zuo, Yan-Song Liu, Mei-Zhu Zheng, Jin-Ming Yu
Cancer stem cell (CSC) formation and epithelial-mesenchymal transition (EMT) are pivotal events in tumor cell invasion and metastasis. They have been shown to occur in resistance to tamoxifen. Moreover, microRNAs (miRNAs) have been associated with CSCs, EMT as well as tamoxifen resistance. Studying molecular mechanism of CSCs, EMT as well as tamoxifen resistance will help us to further understand the pathogenesis and progression of the disease and offer new targets for effective therapies. In the present study, we showed that miR-375 inhibits CSC traits in breast cancer MCF-7 cells...
January 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28075173/tgf%C3%AE-1-induced-lncrna-uca1-upregulation-promotes-gastric-cancer-invasion-and-migration
#14
Zhong-Kun Zuo, Yi Gong, Xiang-Heng Chen, Fei Ye, Zheng-Ming Yin, Qian-Ni Gong, Jiang-Sheng Huang
According to recent studies, long noncoding RNA urothelial carcinoma associated 1 (UCA1) is involved in the development and progression of many malignant tumors, including gastric cancer (GC). We validated the detailed role of UCA1 in human GC cell lines and GC tissues so as to determine its exact function and the underlying mechanism of GC invasion and migration. In our research, lncRNA-UCA1 was specifically upregulated in GC tissues and cell lines, and augmented GC cell proliferation, and invasive and migratory capabilities...
January 11, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28073681/association-of-cytoplasmic-cxcr4-with-loss-of-epithelial-marker-and-activation-of-erk1-2-and-akt-signaling-pathways-in-non-small-cell-lung%C3%A2-cancer
#15
Nabil F Saba, Yuxiang Wang, Hongpeng Fu, Lydia Koenig, Fadlo R Khuri, Dong M Shin, Zhuo Georgia Chen
OBJECTIVES: Compelling evidence demonstrates that CXC-chemokine receptor 4 (CXCR4) is involved in tumor invasion, angiogenesis, metastasis, and resistance to chemotherapy in addition to being one of the coreceptors for T-tropic human immunodeficiency virus entry into T cells. However, it remains controversial as to how to identify functionally activated CXCR4 in tumor biopsies, which would assist in determining which patients may benefit from potential CXCR4-targeted therapy. MATERIALS AND METHODS: Immunohistochemistry (IHC) staining on archival tissues of patients with non-small-cell lung cancer (NSCLC) was used to detect a panel of biomarkers, including phospho-ERK1/2, phospho-AKT, and E-cadherin, which are relevant to downstream signaling of CXCR4 and epithelial to mesenchymal transition (EMT)...
December 22, 2016: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28073171/pan-cancer-survey-of-epithelial-mesenchymal-transition-markers-across-the-cancer-genome-atlas
#16
Don L Gibbons, Chad J Creighton
BACKGROUND: While epithelial-mesenchymal transition (EMT) can be readily induced experimentally in cancer cells, the EMT process as manifested in human tumors needs to be better understood. Pan-cancer genomic datasets from The Cancer Genome Atlas (TCGA)-representing over 10,000 patients and 32 distinct cancer types-provide a rich resource for examining correlative patterns involving EMT mediators in the setting of human cancers. RESULTS: Here, we surveyed a 16-gene signature of canonical EMT markers in TCGA pan-cancer cohort...
January 10, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28073170/loss-of-hsef-promotes-metastasis-through-up-regulation-of-emt-in-prostate-cancer
#17
S Hori, K Wadhwa, V Pisupati, V Zecchini, A Ramos-Montoya, A Y Warren, D E Neal, V J Gnanapragasam
We have previously reported that the negative regulator Similar Expression to FGF (hSef) is down-regulated in prostate cancer and its loss is associated with clinical metastasis. Here, we explored the mechanistic basis of this finding. We first confirmed our clinical observation by testing hSef manipulation in an in vivo metastasis model. hSef stable expressing cells (PC3M-hSef) or empty vector controls (PC3M-EV) were injected subcutaneously into the lateral thoracic walls of NOD-SCID gamma mice and lungs were harvested at autopsy...
January 10, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28072763/epithelial-to-mesenchymal-transition-and-hpv-infection-in-squamous-cell-oropharyngeal-carcinomas-the-papillophar-study
#18
Marine Lefevre, Alexandra Rousseau, Thomas Rayon, Véronique Dalstein, Christine Clavel, Agnès Beby-Defaux, Jean-Luc Pretet, Patrick Soussan, Myriam Polette, Jean Lacau Saint Guily, Philippe Birembaut
BACKGROUND: Human Papillomavirus (HPV) infection is recognised as aetiological factor of carcinogenesis in oropharyngeal squamous cell carcinomas (OPC). HPV-related OPC respond better to treatments and have a significantly favourable outcome. Epithelial to mesenchymal transition (EMT) implicated in tumour invasion, is a hallmark of a poor prognosis in carcinomas. METHODS: We have studied the relationship of EMT markers (E-cadherin, β-catenin and vimentin) with HPV infection (DNA and E6/E7 mRNA detection), p16(INK4a) expression and survival outcomes in a cohort of 296 patients with OPC...
January 10, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28070818/entangling-relation-of-micro-rna-let7-mirna-200-and-mirna-125-with-various-cancers
#19
REVIEW
Nosheen Masood, Azra Yasmin
Involvement of micro RNAs (miRNA) is currently the focus for cancer studies as they effect the post transcriptional expression of different genes. Let-7 family is among the firstly discovered miRNAs that play important role in cell proliferation and dysregulation leading to cell based diseases including cancer. Another family, miRNA-200 prevents transformation of cell to malignant form and tumor formation by interacting with epidermal mesenchymal transition (EMT). Similarly miRNA-125 controls apoptosis and proliferation by affecting multiple genes involved in transcription, immunological defense, resistance against viral and bacterial infections that ultimately leads to cell proliferation, metastasis and finally cancer...
January 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28070573/nanoparticle-delivery-of-wnt-1-sirna-enhances-photodynamic-therapy-by-inhibiting-epithelial-mesenchymal-transition-for-oral-cancer
#20
Chuan Ma, Leilei Shi, Yu Huang, Lingyue Shen, Hao Peng, Xinyuan Zhu, Guoyu Zhou
Activation of the epithelial to mesenchymal transition (EMT) in photodynamic therapy (PDT) can lead to the recurrence and progression of tumors. To enhance the effects of PDT, it is essential to inhibit the Wnt/β-catenin signaling pathway involved in EMT progression. Herein, we used polyethylene glycol-polyethyleneimine-chlorin e6 (PEG-PEI-Ce6) nanoparticles to efficiently deliver Wnt-1 small interfering RNA (siRNA) to the cytoplasm of KB cells (oral squamous cell carcinoma) that were subjected to PDT. Wnt-1 siRNA effectively inhibited the Wnt/β-catenin signaling pathway, reducing the expression of Wnt-1, β-catenin and vimentin that are crucial to the EMT...
January 10, 2017: Biomaterials Science
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