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https://www.readbyqxmd.com/read/29116025/mir-200c-suppresses-endometriosis-by-targeting-malat1-in-vitro-and-in-vivo
#1
Zongwen Liang, Yijie Chen, Yuan Zhao, Chaoyi Xu, Anqi Zhang, Qiong Zhang, Danhan Wang, Jing He, Wenfeng Hua, Ping Duan
BACKGROUND: Endometriosis is a common, benign, and estrogen-dependent disease characterized by pelvic pain and infertility. To date, the pathogenesis of endometriosis remains unclear. Recent studies have demonstrated that noncoding RNAs, including microRNAs and long noncoding RNAs, play important roles in the development of endometriosis. METHODS: Expression profiling of miRNAs in endometrial tissue was characterized using microarrays. The most differentially expressed miRNAs were confirmed using quantitative reverse transcriptase-polymerase chain reaction analysis in additional ectopic endometrial (n = 27) and normal endometrial (n = 12) tissues...
November 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29115924/transcription-factor-e2f1-promotes-emt-by-regulating-zeb2-in-small-cell-lung-cancer
#2
Tingting Wang, Xufang Chen, Weiwei Qiao, Lijun Kong, Daqing Sun, Zunling Li
BACKGROUND: Epithelial-mesenchymal transition (EMT) is an early event in tumour invasion and metastasis, and widespread and distant metastasis at early stages is the typical biological behaviour in small cell lung cancer (SCLC). Our previous reports showed that high expression of the transcription factor E2F1 was involved in the invasion and metastasis of SCLC, but the role of E2F1 in the process of EMT in SCLC is unknown. METHODS: Immunohistochemistry was performed to evaluate the expressions of EMT related markers...
November 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29104620/expression-of-and-correlation-between-bcl6-and-zeb-family-members-in-patients-with-breast-cancer
#3
Lin Ang, Li Zheng, Jin Wang, Jin Huang, Hong-Guang Hu, Qiang Zou, Yang Zhao, Qiang-Ming Liu, Min Zhao, Zheng-Sheng Wu
B-cell lymphoma 6 (BCL6), a proto-oncogene, is an evolutionarily conserved zinc finger protein that functions as a transcriptional repressor. BCL6 is the master regulator of B-lymphocyte development, and it has been reported that BCL6 may serve an important role in breast cancer progression. The aim of the present study was to investigate the expression of BCL6, zinc finger E-box-binding homeobox (ZEB)1 and ZEB2 and their associations in breast cancer. The mRNA and protein expression of BCL6, ZEB1 and ZEB2 was assessed using in situ hybridization and immunohistochemistry, respectively, in 228 patients with breast cancer and 80 patients with benign breast disease...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29089047/whole-exome-sequencing-in-342-congenital-cardiac-left-sided-lesion-cases-reveals-extensive-genetic-heterogeneity-and-complex-inheritance-patterns
#4
Alexander H Li, Neil A Hanchard, Dieter Furthner, Susan Fernbach, Mahshid Azamian, Annarita Nicosia, Jill Rosenfeld, Donna Muzny, Lisa C A D'Alessandro, Shaine Morris, Shalini Jhangiani, Dhaval R Parekh, Wayne J Franklin, Mark Lewin, Jeffrey A Towbin, Daniel J Penny, Charles D Fraser, James F Martin, Christine Eng, James R Lupski, Richard A Gibbs, Eric Boerwinkle, John W Belmont
BACKGROUND: Left-sided lesions (LSLs) account for an important fraction of severe congenital cardiovascular malformations (CVMs). The genetic contributions to LSLs are complex, and the mutations that cause these malformations span several diverse biological signaling pathways: TGFB, NOTCH, SHH, and more. Here, we use whole exome sequence data generated in 342 LSL cases to identify likely damaging variants in putative candidate CVM genes. METHODS: Using a series of bioinformatics filters, we focused on genes harboring population-rare, putative loss-of-function (LOF), and predicted damaging variants in 1760 CVM candidate genes constructed a priori from the literature and model organism databases...
October 31, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29073077/breast-tumor-cell-specific-knockout-of-twist1-inhibits-cancer-cell-plasticity-dissemination-and-lung-metastasis-in-mice
#5
Yixiang Xu, Dong-Kee Lee, Zhen Feng, Yan Xu, Wen Bu, Yi Li, Lan Liao, Jianming Xu
Twist1 is an epithelial-mesenchymal transition (EMT)-inducing transcription factor (TF) that promotes cell migration and invasion. To determine the intrinsic role of Twist1 in EMT and breast cancer initiation, growth, and metastasis, we developed mouse models with an oncogene-induced mammary tumor containing wild-type (WT) Twist1 or tumor cell-specific Twist1 knockout (Twist1(TKO)). Twist1 knockout showed no effects on tumor initiation and growth. In both models with early-stage tumor cells, Twist1, and mesenchymal markers were not expressed, and lung metastasis was absent...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29060924/identification-of-key-genes-in-endometrioid-endometrial-adenocarcinoma-via-tcga-database
#6
Yanni Liu, Zeshun Yu, Fangfang Nan, Kexin Lu, Yunfang Wang, Yu Liu, Shuangyan Wei, Ruixue Wu, Ying Wang
BACKGROUND: Understanding the molecular mechanisms is important in development and therapy of endometrioid endometrial adenocarcinoma. OBJECTIVE: To identify key genes in endometrioid endometrial adenocarcinoma. METHODS: The data of mRNA, miRNA and DNA methylation were downloaded from The Cancer Genome Atlas (TCGA) database and differential analysis was performed. Then, bioinformatic analysis was used to explore the regulatory mechanisms of miRNA and DNA methylation on gene expression...
October 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29059150/protein-phosphatase-1-regulatory-subunit-1a-in-ewing-sarcoma-tumorigenesis-and-metastasis
#7
W Luo, C Xu, J Ayello, F Dela Cruz, J M Rosenblum, S L Lessnick, M S Cairo
Protein phosphatase inhibitors are often considered as tumor promoters. Protein phosphatase 1 regulatory subunit 1A (PPP1R1A) is a potent protein phosphatase 1 (PP1) inhibitor; however, its role in tumor development is largely undefined. Here we characterize, for the first time, the functions of PPP1R1A in Ewing sarcoma (ES) pathogenesis. We found that PPP1R1A is one of the top ranked target genes of EWS/FLI, the master regulator of ES, and is upregulated by EWS/FLI via a GGAA microsatellite enhancer element...
October 23, 2017: Oncogene
https://www.readbyqxmd.com/read/29052277/src-promotes-egf-induced-epithelial-to-mesenchymal-transition-and-migration-in-gastric-cancer-cells-by-upregulating-zeb1-and-zeb2-through-akt
#8
Lei Zhao, Xin Li, Na Song, Aodi Li, Kezuo Hou, Xiujuan Qu, Xiaofang Che, Yunpeng Liu
Epithelial-to-mesenchymal transition (EMT) plays important roles in the migration, invasion and metastasis of cancer cells. However, the role of Src in epidermal growth factor (EGF)-induced EMT and migration in gastric cancer cells remains to be clarified. In the current study, the effect of Src on EGF-stimulated EMT and migration was explored in gastric cancer cells. EGF induced EMT in gastric cancer cells and increased their migratory ability, which was accompanied by the phosphorylation of Src. PP2, the Src inhibitor, markedly suppressed EGF-mediated EMT and migration in gastric cancer cells...
October 20, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29050198/mtorc1-autophagy-regulated-mertk-in-mutant-brafv600-melanoma-with-acquired-resistance-to-braf-inhibition
#9
Gongda Xue, Reto Kohler, Fengyuan Tang, Debby Hynx, Yuhua Wang, Francesca Orso, Vincent Prêtre, Reto Ritschard, Petra Hirschmann, Peter Cron, Tim Roloff, Reinhard Dummer, Mario Mandalà, Sandrine Bichet, Christel Genoud, Alexandra G Meyer, Manuele G Muraro, Giulio C Spagnoli, Daniela Taverna, Curzio Rüegg, Taha Merghoub, Daniela Massi, Huifang Tang, Mitchell P Levesque, Stephan Dirnhofer, Alfred Zippelius, Brian A Hemmings, Andreas Wicki
BRAF inhibitors (BRAFi) and the combination therapy of BRAF and MEK inhibitors (MEKi) were recently approved for therapy of metastatic melanomas harbouring the oncogenic BRAFV600 mutation. Although these therapies have shown pronounced therapeutic efficacy, the limited durability of the response indicates an acquired drug resistance that still remains mechanistically poorly understood at the molecular level. We conducted transcriptome gene profiling in BRAFi-treated melanoma cells and identified that Mer tyrosine kinase (MerTK) is specifically upregulated...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29021386/suppression-of-microrna-activity-in-kidney-collecting-ducts-induces-partial-loss-of-epithelial-phenotype-and-renal-fibrosis
#10
Sachin Hajarnis, Matanel Yheskel, Darren Williams, Thomas Brefort, Bob Glaudemans, Huguette Debaix, Michel Baum, Olivier Devuyst, Vishal Patel
microRNAs (miRNAs) are sequence-specific inhibitors of post-transcriptional gene expression. The physiologic function of these noncoding RNAs in postnatal renal tubules still remains unclear. Surprisingly, they appear to be dispensable for mammalian proximal tubule (PT) function. Here, we examined the effects of miRNA suppression in collecting ducts (CDs). To conclusively evaluate the role of miRNAs, we generated three mouse models with CD-specific inactivation of key miRNA pathway genes Dicer, Dgcr8, and the entire Argonaute gene family (Ago1, 2, 3, and 4)...
October 11, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28992472/lncrna-zeb2-as1-promotes-bladder-cancer-cell-proliferation-and-inhibits-apoptosis-by-regulating-mir-27b
#11
Xiaoqiang Wu, Tianzhong Yan, Zhiwei Wang, Xuan Wu, Guanghui Cao, Chan Zhang
BACKGROUND: The aim of this study was to explore the role of lncRNA zinc finger E-box binding homeobox 2 antisense RNA 1 (ZEB2-AS1), as a new tumor-associated lncRNA, in bladder cancer (BC) pathogenesis. METHODS: BC tissues and tumor-adjacent normal bladder tissues were collected for detection of the expression profile of ZEB2-AS1 and miR-27b in BC. The endogenous expression of ZEB2-AS1 and miR-27b was modulated by the recombinant expression vector in vitro. The interaction between ZEB2-AS1 and miR-27b was identified by luciferase report gene assays and RNA immunoprecipitation (RIP) assays...
October 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28982853/expression-of-epithelial-mesenchymal-transition-regulating-transcription-factors-in-head-and-neck-squamous-cell-carcinomas
#12
COMPARATIVE STUDY
Juliane Göppel, Nikolaus Möckelmann, Adrian Münscher, Guido Sauter, Udo Schumacher
BACKGROUND/AIM: The transcription factors Twist, Snail, Slug, ZEB1 and ZEB2 regulate epithelial-mesenchymal transition (EMT) and their expression has been associated with a poor prognosis in several cancer entities. The aim of this analysis was to investigate in parallel the expression of all of these transcription factors in head and neck squamous cell carcinomas (HNSCCs) in order to gain insight into their possible co-expression. MATERIALS AND METHODS: Tumor tissue samples were immunohistochemically stained using antibodies against these transcription factors...
October 2017: Anticancer Research
https://www.readbyqxmd.com/read/28980068/a-unique-methylation-pattern-co-segregates-with-neural-tube-defect-statuses-in-han-chinese-pedigrees
#13
Ruiping Zhang, Lirong Cao, Yizheng Wang, Yulian Fang, Linsheng Zhao, Weidong Li, Ou-Yan Shi, Chun-Quan Cai
Neural tube defects (NTDs) are a complex trait associated with gene-environment interactions. Folic acid deficiency and planar cell polarity gene mutations account for some NTD cases; however, the etiology of NTDs is still little understood. In this study, in three Han Chinese NTD pedigrees (two with multiple affected children), with no information on folic acid deficiency or supplement, we examined genome-wide methylation profiles of each individual in these families. We further compared methylation status among cases and normal individuals within the pedigrees...
October 4, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28962647/mir-524-5p-of-the-primate-specific-c19mc-mirna-cluster-targets-tp53ipn1-and-emt-associated-genes-to-regulate-cellular-reprogramming
#14
Phan Nguyen Nhi Nguyen, Kong Bung Choo, Chiu-Jung Huang, Shigeki Sugii, Soon Keng Cheong, Tunku Kamarul
BACKGROUND: Introduction of the transcription factors Oct4, Sox2, Klf4, and c-Myc (OSKM) is able to 'reprogram' somatic cells to become induced pluripotent stem cells (iPSCs). Several microRNAs (miRNAs) are known to enhance reprogramming efficiency when co-expressed with the OSKM factors. The primate-specific chromosome 19 miRNA cluster (C19MC) is essential in primate reproduction, development, and differentiation. miR-524-5p, a C19MC member, is highly homologous to the reprogramming miR-520d-5p; we also reported that miR-524-5p was expressed in iPSCs but not mesenchymal stem cells (MSCs)...
September 29, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28938653/overexpression-of-emt-inducing-transcription-factors-as-a-potential-poor-prognostic-factor-for-hepatocellular-carcinoma-in-asian-populations-a-meta-analysis
#15
Tao Wan, Tianwei Zhang, Xiaoying Si, Yanming Zhou
BACKGROUND AND OBJECTIVES: The clinical relevance of epithelial to mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) progression has been highlighted during the last decade. The zinc finger E-box binding homeobox (ZEB) family, the zinc-finger transcriptional repressor (SNAI) family, and the basic helix-loop-helix transcription factor (Twist) family, known as the prominent EMT-inducing transcription factors (EMT-TFs), played a crucial role in the process of EMT. Here, this meta-analysis aimed to evaluate the prognostic value of EMT-TFs high expression in patients with HCC after hepatectomy...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28928657/colocynth-extracts-prevent-epithelial-to-mesenchymal-transition-and-stemness-of-breast-cancer-cells
#16
Kaushik Chowdhury, Ankit Sharma, Suresh Kumar, Gyanesh K Gunjan, Alo Nag, Chandi C Mandal
Modern treatment strategies provide better overall survival in cancer patients, primarily by controlling tumor growth. However, off-target and systemic toxicity, tumor recurrence, and resistance to therapy are still inadvertent hurdles in current treatment regimens. Similarly, metastasis is another deadly threat to patients suffering from cancer. This has created an urgent demand to come up with new drugs having anti-metastatic potential and minimum side effects. Thus, this study was aimed at exploring the anti-proliferative and anti-metastatic potential of colocynth medicinal plant...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28927031/prognostic-significance-of-the-epithelial-mesenchymal-transition-factor-zinc-finger-e-box-binding-homeobox-2-in-esophageal-squamous-cell-carcinoma
#17
Xiaodong Huo, Bin Huo, Huixing Wang, Hongdian Zhang, Zhao Ma, Mingjian Yang, Haitao Wang, Zhentao Yu
Zinc finger E-box-binding homeobox 2 (ZEB2) has been reported to mediate epithelial-mesenchymal transition (EMT) and disease progression in several cancer types. However, the expression of ZEB2 in esophageal squamous cell carcinoma (OSCC) and its association with prognosis remains unclear. In the present study, a tissue microarray and immunohistochemistry were used to investigate ZEB2 and epithelial (E-)cadherin expression in OSCC tissues (n=218) and peritumoral esophageal tissues (POT; n=60). There was a significantly increased incidence of positive ZEB2 expression in OSCC tissues compared with the expression in POTs (P<0...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28915612/the-roles-of-ing5-in-gliomas-a-good-marker-for-tumorigenesis-and-a-potential-target-for-gene-therapy
#18
Shuang Zhao, Zhi-Juan Zhao, Hao-Yu He, Ji-Cheng Wu, Xiao-Qing Ding, Lei Yang, Ning Jia, Zhi-Jie Li, Hua-Chuan Zheng
To elucidate the anti-tumor effects and molecular mechanisms of ING5 on glioma cells, we overexpressed it in U87 cells, and examined the phenotypes and their relevant molecules. It was found that ING5 overexpression suppressed proliferation, energy metabolism, migration, invasion, and induced G2/M arrest, apoptosis, dedifferentiation, senescence, mesenchymal- epithelial transition and chemoresistance to cisplatin, MG132, paclitaxel and SAHA in U87 cells. There appeared a lower expression of N-cadherin, Twist, Slug, Zeb1, Zeb2, Snail, Ac-H3, Ac-H4, Cdc2, Cdk4 and XIAP, but a higher expression of Claudin 1, Histones 3 and 4, p21, p53, Bax, β-catenin, PI3K, Akt, and p-Akt in ING5 transfectants...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912304/e-cadherin-and-zeb2-modulate-trophoblast-cells-differentiation-during-placental-development-in-pigs
#19
Linjun Hong, Kun Han, Kejia Wu, Ruize Liu, Ji Huang, Joan K Lunney, Shuhong Zhao, Mei Yu
It is one of the important events that trophoblast cells within the placental folds differentiate into two types that differ in cell shape during placental development in pigs. This study showed that all the trophoblast cells were in similar shape between Yorkshire and Chinese Meishan pigs on day 26 of gestation, thereafter, the trophoblast cells located at the top of the placental folds became high columnar while those cells at the base of the placental folds were cuboidal on day 50 of gestation. Additionally, on day 95 of gestation, all the trophoblast cells in Meishan pigs became cuboidal, but the trophoblast cells located at the top of the placental folds in Yorkshire pigs still remained columnar...
September 14, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28890036/tumoral-and-stromal-expression-of-slug-zeb1-and-zeb2-in-brain-metastasis
#20
Masaya Nagaishi, Satoshi Nakata, Yuko Ono, Koji Hirata, Yoshihiro Tanaka, Kensuke Suzuki, Hideaki Yokoo, Akio Hyodo
Epithelial-to-mesenchymal transition (EMT) has an active role in the malignant progression of epithelial tumor cells. The aim of the study was to identify the existence of the EMT mechanism in brain metastasis. Tumors from 29 patients with brain metastases were assessed in terms of the immunoexpression of EMT-related factors including Slug, ZEB1, ZEB2, and E-cadherin in tumor cells and the surrounding mesenchymal stromal cells. The results were compared between primary tumors and their matched metastatic brain tumors...
December 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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