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https://www.readbyqxmd.com/read/28646172/dacomitinib-a-pan-inhibitor-of-erbb-receptors-suppresses-growth-and-invasive-capacity-of-chemoresistant-ovarian-carcinoma-cells
#1
Majid Momeny, Ghazaleh Zarrinrad, Farima Moghaddaskho, Arash Poursheikhani, Ghazaleh Sankanian, Azam Zaghal, Shahab Mirshahvaladi, Fatemeh Esmaeili, Haniyeh Eyvani, Farinaz Barghi, Zahra Sabourinejad, Zivar Alishahi, Hassan Yousefi, Reza Ghasemi, Leila Dardaei, Davood Bashash, Bahram Chahardouli, Ahmad R Dehpour, Javad Tavakkoly-Bazzaz, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
Epithelial ovarian cancer (EOC) is the most lethal gynaecological malignancy worldwide. Development of chemoresistance and peritoneal dissemination of EOC cells are the major reasons for low survival rate. Targeting signal transduction pathways which promote therapy resistance and metastatic dissemination is the key to successful treatment. Members of the ErbB family of receptors are over-expressed in EOC and play key roles in chemoresistance and invasiveness. Despite this, single-targeted ErbB inhibitors have demonstrated limited activity in chemoresistant EOC...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#2
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28642450/cbp501-inhibits-egf-dependent-cell-migration-invasion-and-epithelial-to-mesenchymal-transition-of-non-small-cell-lung-cancer-cells-by-blocking-kras-to-calmodulin-binding
#3
Naoya Saito, Naoki Mine, Donald W Kufe, Daniel D Von Hoff, Takumi Kawabe
The anti-cancer agent CBP501 binds to calmodulin (CaM). Recent studies showed that migration and metastasis are inhibited by several CaM antagonists. However, there is no available evidence that CBP501 has similar effects. Here we found that CBP501 inhibits migration of non-small cell lung cancer (NSCLC) cells in vitro, even in the presence of migration inducing factors such as WNT, IL-6, and several growth factors. CBP501 also inhibited epidermal growth factor (EGF) enhanced invasion and the epithelial-to-mesenchymal transition (EMT), and this inhibition was accompanied by (i) suppression of Akt and ERK1/2 phosphorylation, and (ii) suppression of expression of transcription factor Zeb1 and the mesenchymal marker Vimentin...
June 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28638460/zeb1-mediates-drug-resistance-and-emt-in-p300-deficient-crc
#4
Darina Lazarova, Michael Bordonaro
We discuss the hypothesis that ZEB1-Wnt-p300 signaling integrates epithelial to mesenchymal transition (EMT) and resistance to histone deacetylase inhibitors (HDACis) in colorectal cancer (CRC) cells. The HDACi butyrate, derived from dietary fiber, has been linked to CRC prevention, and other HDACis have been proposed as therapeutic agents against CRC. We have previously discussed that resistance to butyrate likely contributes to colonic carcinogenesis, and we have demonstrated that butyrate resistance leads to cross-resistance to cancer therapeutic HDACis...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28636101/knockdown-of-lncrna-meg3-inhibits-viability-migration-and-invasion-and-promotes-apoptosis-by-sponging-mir-127-in-osteosarcoma-cell
#5
Yang Wang, Daliang Kong
Osteosarcoma (OS) is one of the most common bone malignancies and occurs almost exclusively in children and adolescents. This study aimed to explore the role of lncRNA maternally expressed gene 3 (MEG3) in OS cells growth and metastasis, and to uncover the possible underlying mechanism. In this study, the expressions of MEG3 in five OS cell lines (MG63, OS-732, SaOS, G292, and 143B) and in a human osteoblast cell line hFOB1.19 were measured by qRT-PCR analysis. The expressions of MEG3, miR-127 and ZEB1 in OS-732 cells were overexpressed or suppressed by transfection...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28635228/-mechanism-of-long-non-coding-rna-metastasis-associated-lung-adenocarcinoma-transcript-1-induced-invasion-and-metastasis-of-esophageal-cancer-cell-ec-109
#6
Q Q Zhang, Y H Cui, Y Wang, W Z Kou, F Cao, X J Cao, Z H Miao, X H Kang
Objective: To investigate the effect and mechanism of long non-coding RNA-metastasis associated lung adenocarcinoma transcript 1, (LncRNA-MALAT1) on invasion and metastasis of esophageal cancer cell EC-109. Methods: EC-109 cells were transfected with lentiviral vector carrying short hairpin RNA of MALAT1( shRNA-MALAT1) or a nonspecific shRNA control (shRNA-control). The expressions of MALAT1, microRNA-200a, ZEB1 and ZEB2 were detected by qRT-PCR. The effect of shRNA-MALAT1 on invasion of EC-109 cells was determined by transwell assay...
June 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28635133/critical-role-of-glioma-associated-oncogene-homolog-1-in-maintaining-invasive-and-mesenchymal-like-properties-of-melanoma-cells
#7
I Ketut Gunarta, Rong Li, Ryota Nakazato, Ryusuke Suzuki, Jambaldorj Boldbaatar, Takeshi Suzuki, Katsuji Yoshioka
Cutaneous melanoma is the most aggressive form of skin cancer. This aggressiveness appears to be due to the cancer cells' ability to reversibly switch between phenotypes with non-invasive and invasive potentials, and microphthalmia-associated transcription factor (MITF) is known to play a central role in this process. The transcription factor glioma-associated oncogene homolog 1 (GLI1) is a component of the canonical and noncanonical sonic hedgehog pathways. Although GLI1 has been suggested to be involved in melanoma progression, its precise role and the mechanism underlying invasion remain unclear...
June 21, 2017: Cancer Science
https://www.readbyqxmd.com/read/28625518/histone-chaperone-asf1a-predicts-poor-outcomes-for-patients-with-gastrointestinal-cancer-and-drives-cancer-progression-by-stimulating-transcription-of-%C3%AE-catenin-target-genes
#8
Xiuming Liang, Xiaotian Yuan, Jingya Yu, Yujiao Wu, Kailin Li, Chao Sun, Shuyan Li, Li Shen, Feng Kong, Jihui Jia, Magnus Björkholm, Dawei Xu
Epigenetic mechanisms play a key role in gastrointestinal cancer (GIC) development and progression, and most studies have been focused on aberrant DNA methylation and histone modifying enzymes. However, the histone H3-H4 chaperone ASF1A is an important factor regulating chromatin assembling and gene transcription, while it is currently unclear whether ASF1A is involved in cancer pathogenesis. The present study is thus designed to address this issue. Here we showed that ASF1A expression was widespread in GIC-derived cell lines and up-regulated in primary GIC...
June 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28623900/characterization-of-microrna-200-pathway-in-ovarian-cancer-and-serous-intraepithelial-carcinoma-of-fallopian-tube
#9
Junzheng Yang, Yilan Zhou, Shu-Kay Ng, Kuan-Chun Huang, Xiaoyan Ni, Pui-Wah Choi, Kathleen Hasselblatt, Michael G Muto, William R Welch, Ross S Berkowitz, Shu-Wing Ng
BACKGROUND: Ovarian cancer is the leading cause of death among gynecologic diseases in Western countries. We have previously identified a miR-200-E-cadherin axis that plays an important role in ovarian inclusion cyst formation and tumor invasion. The purpose of this study was to determine if the miR-200 pathway is involved in the early stages of ovarian cancer pathogenesis by studying the expression levels of the pathway components in a panel of clinical ovarian tissues, and fallopian tube tissues harboring serous tubal intraepithelial carcinomas (STICs), a suggested precursor lesion for high-grade serous tumors...
June 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28618933/high-expression-of-long-non-coding-rna-zeb1-as1-promotes-colorectal-cancer-cell-proliferation-partially-by-suppressing-p15-expression
#10
Huangbo Gong, Hao Wen, Xuhui Zhu, Yifan Lian, Xiaojun Yang, Zhuyin Qian, Jin Zhu
This study aims to investigate the function of long non-coding RNA ZEB1-AS1, reveal its molecular mechanism in colorectal cancer cell growth, and evaluate its clinical significance in colorectal cancer patients. ZEB1-AS1 has reported in the development of several cancers, but the biological role of it in colorectal cancer has not been discussed. In this report, ZEB1-AS1 expression level was measured with quantitative real-time polymerase chain reaction in 63 pairs of colorectal cancer tissues and paired adjacent non-tumor colorectal tissues...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28618162/zeb1-regulated-inflammatory-phenotype-in-breast-cancer-cells
#11
Akihiro Katsura, Yusuke Tamura, Satoshi Hokari, Mayumi Harada, Masato Morikawa, Tsubasa Sakurai, Kei Takahashi, Anna Mizutani, Jun Nishida, Yuichiro Yokoyama, Yasuyuki Morishita, Takashi Murakami, Shogo Ehata, Kohei Miyazono, Daizo Koinuma
Zinc finger E-box binding protein 1 (ZEB1) and ZEB2 induce epithelial-mesenchymal transition (EMT) and enhance cancer progression. However, the global view of transcriptional regulation by ZEB1 and ZEB2 is yet to be elucidated. Here, we identified a ZEB1-regulated inflammatory phenotype in breast cancer cells using chromatin immunoprecipitation-sequencing and RNA sequencing, followed by gene set enrichment analysis (GSEA) of ZEB1-bound genes. Knockdown of ZEB1 and/or ZEB2 resulted in the down-regulation of genes encoding inflammatory cytokines related to poor prognosis in cancer patients, including IL6 and IL8, therefore suggesting that ZEB1 and ZEB2 have similar functions in terms of the regulation of production of inflammatory cytokines...
June 15, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28617555/correlation-analysis-of-mir-200b-mir-200c-and-mir-141-with-liver-metastases-in-colorectal-cancer-patients
#12
S-H Zhu, X-C He, L Wang
OBJECTIVE: To investigate correlation relationship between serum miR-200b, miR-200c, miR-141 levels with liver metastases in colorectal cancer patients. PATIENTS AND METHODS: A total of 85 colorectal cancer patients with liver metastases and 54 colorectal cancer patients without liver metastases were divided into experimental group and control. Serum sample was collected before surgery and tested by Real-time PCR to evaluate miR-200b, miR-200c, miR-141 expressions...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28615992/overexpression-of-lncrna-hoxa11-as-promotes-cell-epithelial-mesenchymal-transition-by-repressing-mir-200b-in-non-small-cell-lung-cancer
#13
Jian-Hui Chen, Li-Yang Zhou, Suo Xu, Yu-Long Zheng, Yu-Feng Wan, Cheng-Ping Hu
BACKGROUND: Recent studies have verified that long noncoding RNAs (lncRNAs) involved in many biological functions and play crucial roles in human cancers progression, the study aimed to detect the association between long non-coding RNA HOXA11-AS and epithelial-mesenchymal transition (EMT) process in non-small cell lung cancer (NSCLC). METHODS: The lncRNA HOXA11-AS expression levels were determined by quantitative real-time polymerase chain reaction (qRT-PCR) assays in 78 paired of tumor tissue and adjacent normal tissue samples in NSCLC patients...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28615725/transcriptome-analysis-reveals-similarities-between-human-blood-cd3-cd56-bright-cells-and-mouse-cd127-innate-lymphoid-cells
#14
David S J Allan, Ana Sofia Cerdeira, Anuisa Ranjan, Christina L Kirkham, Oscar A Aguilar, Miho Tanaka, Richard W Childs, Cynthia E Dunbar, Jack L Strominger, Hernan D Kopcow, James R Carlyle
For many years, human peripheral blood natural killer (NK) cells have been divided into functionally distinct CD3(-) CD56(bright) CD16(-) and CD3(-) CD56(dim) CD16(+) subsets. Recently, several groups of innate lymphoid cells (ILC), distinct from NK cells in development and function, have been defined in mouse. A signature of genes present in mouse ILC except NK cells, defined by Immunological Genome Project studies, is significantly over-represented in human CD56(bright) cells, by gene set enrichment analysis...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28608272/ctg18-1-repeat-expansion-may-reduce-tcf4-gene-expression-in-corneal-endothelial-cells-of-german-patients-with-fuchs-dystrophy
#15
Sabine Foja, Mirjam Luther, Katrin Hoffmann, Andreas Rupprecht, Claudia Gruenauer-Kloevekorn
PURPOSE: It was the aim of this investigation to elucidate the functional effects of CTG18.1 trinucleotide repeat expansion and the polymorphism rs613872 in the transcription factor 4 (TCF4) in corneas of patients affected by Fuchs' endothelial corneal dystrophy (FECD). METHODS: Sixty-one unrelated German patients with FECD and 113 unaffected controls were investigated and genotyped for the CTG18.1 locus by triplet primed PCR (TP-PCR) and the rs613872 polymorphism via Sanger sequencing and by employing genomic DNA from peripheral blood leucocytes...
June 12, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28605329/immunohistochemical-profile-of-tumor-pathways-and-prognostic-significance-in-colon-adenocarcinomas
#16
Serkan Senol, Ayse Bahar Ceyran, Duygu Kösemetin, Bengü Gobanoglu, Dincer Aydin, Esra Akdeniz Duran, Metin Leblebici
The current study examined the immunohistochemical expression levels of molecules on carcinogenesis pathway and evaluated their clinicopathologic significance in colorectal adenocarcinoma (CRA). A total of 189 CRA and 20 colonic mucosal tissue samples were evaluated by immunohistochemical staining using 38 antibodies targeting the known molecules that play roles in developmental pathways of various tumors. The immunoexpression data of the patients were compared to clinicopathologic parameters. Expression loss of MLH1, MSH2, MSH6, PMS2, PTEN, Smad4 and E-cadherin, and overexpression of ALDH1, CD44, CAIX, P504S (AMACR), TGFΒ, and ZEB1 were statistically significant in CRA compared to normal colon mucosa...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/28598827/expression-analysis-of-long-non-coding-atb-and-its-putative-target-in-breast-cancer
#17
Elahe Nikpayam, Mohammad Soudyab, Behnoosh Tasharrofi, Shaghayegh Sarrafzadeh, Mostafa Iranpour, Lobat Geranpayeh, Reza Mirfakhraie, Jalal Gharesouran, Soudeh Ghafouri-Fard
BACKGROUND: A long noncoding RNA (lncRNA) activated by transforming growth factor (TGF)-β (lncRNA-ATB) has been recently shown to promote the invasion-metastasis cascade in various types of cancers via upregulation of some targets including ZEB1. OBJECTIVES: The aim of the present study was to elucidate the expression of lncRNA-ATB and ZEB in breast cancer patients. METHODS: The expression of these genes was evaluated by real-time reverse transcription polymerase chain reaction in tumor samples form 50 newly diagnosed breast cancer patients as well as their corresponding adjacent non-cancerous tissues (ANCTs)...
June 2, 2017: Breast Disease
https://www.readbyqxmd.com/read/28597474/zeb1-expression-is-a-potential-indicator-of-invasive-endometriosis
#18
Masataka Furuya, Hirotaka Masuda, Kanako Hara, Hiroshi Uchida, Kenji Sato, Suguru Sato, Hironori Asada, Tetsuo Maruyama, Yasunori Yoshimura, Hidetaka Katabuchi, Mamoru Tanaka, Hideyuki Saya
INTRODUCTION: Although endometriosis is a benign disease, it shares some features with cancers, such as invasiveness and the potential to metastasize. This study sought to investigate the epithelial-mesenchymal transition (EMT) status in human endometriotic lesions. MATERIAL AND METHODS: Thirteen endometriosis patients and ten control women without endometriosis undergoing surgery for benign indications were recruited. We examined the expression of E-cadherin, vimentin, and EMT-induced transcriptional factors, such as Snail and ZEB1, by immunohistochemistry...
June 8, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28592291/tightly-controlled-mrtf-a-activity-regulates-epithelial-differentiation-during-formation-of-mammary-acini
#19
Anja Seifert, Guido Posern
BACKGROUND: Myocardin-related transcription factors (MRTF) A and B link actin dynamics and mechanotransduction to gene expression. In mice, MRTF-A is involved in mammary gland differentiation, but its role in human mammary epithelial cells remains unclear. METHODS: Three-dimensional cultures of human mammary epithelial MCF10A cells were used to model acinar morphogenesis. Stable MRTF-A knockdown, MRTF-A/B rescue and MRTF-A/B overexpression was established to characterize the functional role during morphogenesis using confocal microscopy and expression analysis...
June 7, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28587302/the-functions-of-microrna-200-family-in-ovarian-cancer-beyond-epithelial-mesenchymal-transition
#20
REVIEW
Pui-Wah Choi, Shu-Wing Ng
The majority of studies on microRNA-200 family members (miR-200s) in human cancers are based on the premise that miR-200s maintain epithelial cell integrity by suppressing epithelial-mesenchymal transition (EMT) through direct inhibition of mesenchymal transcription factors zinc finger E-box-binding homeobox 1/2 (ZEB1/ZEB2) and transforming growth factor-β (TGF-β), a potent inducer of EMT. Hence, downregulation of miR-200 in cancer cells promotes EMT and cancer metastasis. Yet, miR-200s are highly expressed in ovarian cancer, and ovarian cancer metastasizes primarily by dissemination within the pelvic cavity...
June 6, 2017: International Journal of Molecular Sciences
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