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EMT OR ZEB1

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https://www.readbyqxmd.com/read/28821798/unconventional-mapk-gsk-3%C3%AE-pathway-behind-atypical-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma
#1
Sana Parveen, Dhiviya Vedagiri, Hitha Gopalan Nair, Haripriya Parthasarathy, Krishnan Harinivas Harshan
We recently reported an atypical epithelial mesenchymal transition (EMT) in human hepatoma cell culture Huh7.5, which was non-responsive to the canonical EMT-transcription factors. Here we characterize major pathways regulating this atypical EMT through whole genome transcriptome profiling and molecular analysis, and identify a unique regulation of EMT by GSK-3β. Our analysis reveals remarkable suppression of several key liver-specific markers in Huh7.5M cells indicating that EMT not only changes the epithelial properties, but alters the characteristics associated with hepatocytes as well...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821617/janus-kinase-3-regulates-adherens-junction-and-epithelial-mesenchymal-transition-through-beta-catenin
#2
Jayshree Mishra, Jugal Kishore Das, Narendra Kumar
Compromise in adherens junction (AJ) is associated with several chronic inflammatory diseases. Previously we reported that Janus kinase-3, a non-receptor tyrosine kinase plays a crucial role in AJ formation through its interaction with beta-catenin. In this report, we characterize the structural determinants responsible for Jak3 interactions with beta-catenin and determine the functional implications of previously unknown tyrosine residues on beta-catenin phosphorylated by Jak3. We demonstrate that Jak3 auto-phosphorylation was the rate- limiting step during Jak3 trans-phosphorylation of beta-catenin where Jak3 directly phosphorylated three tyrosine residues viz...
August 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28820530/cxcr7-attenuates-the-tgf-%C3%AE-induced-endothelial-to-mesenchymal-transition-and-pulmonary-fibrosis
#3
Shuhong Guan, Jun Zhou
Lung fibrosis is a progressive and often fatal lung disease characterized by fibroblast proliferation and excessive deposition of extracellular matrix in the lungs. The chemokine receptor CXCR7 has been shown to control cell adhesion, migration and proliferation by regulating the epithelial-to-mesenchymal transition (EMT), but the role of CXCR7 in regulating the endothelial-to-mesenchymal transition (EndMT) and lung fibrosis remains largely unclear. In this study, we investigated the interrelation of CXCR7 and TGF-β, a crucial player in lung fibrogenesis...
August 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28820324/road-to-perdition-zeb1-dependent-and-independent-ways-to-metastasis
#4
Simone Brabletz, Thomas Brabletz, Marc P Stemmler
No abstract text is available yet for this article.
August 18, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28819788/insulin-like-growth-factor-1-activates-different-catalytic-subunits-p110-of-pi3k-in-a-cell-type-dependent-manner-to-induce-lipogenesis-dependent-epithelial-mesenchymal-transition-through-the-regulation-of-adam10-and-adam17
#5
Ga Bin Park, Daejin Kim
The activation of phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) is critical for the induction of epithelial-mesenchymal transition (EMT) by growth factors, including insulin-like growth factor 1 (IGF-1). The activation of intracellular lipogenesis provides proliferative and survival signals for cancer cells. In this study, we investigated the connection between lipogenesis-related EMT processes and IGF-1-mediated PI3K p110 isoform activation in primary (SW480 cells) and metastatic (SW620) colon carcinoma cells...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28819779/curcuma-wenyujin-y-h-chen-et-c-ling-n-butyl-alcohol-extract-inhibits-ags-cell-helicobacter-pylori-caga-vaca-promoted-invasiveness-by-down-regulating-caudal-type-homeobox-transcription-factor-and-claudin-2-expression
#6
Hai-Feng Jin, Jin-Feng Dai, Li-Na Meng, Bin Lu
OBJECTIVE: To investigate the effects and possible mechanisms of action of Curcuma wenyujin Y. H. Chen et C. Ling n-Butyl alcohol extract (CWNAE) on repression of human gastric cancer (GC) AGS cell invasion induced by co-culturing with Helicobacter pylori (HP). METHODS: AGS cells were cultured with HP of positive or negative cytotoxin-associated gene A (CagA) and vacuolating cytotoxin gene A (VacA) expression (CagA+/- or VacA+/-) and divided into 5 group. Group A was cultured without HP as a control, Group B with HPCagA+VacA+, Group C with HPCagA-VacA-, Group D with HPCagA+VacA+ and CWNAE, and Group E with HPCagA-VacA- and CWNAE...
August 17, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28819582/relationship-of-metabolic-alterations-and-pd-l1-expression-in-cisplatin-resistant-lung-cancer
#7
M Wangpaichitr, H Kandemir, Y Y Li, C Wu, Djm Nguyen, L G Feun, M T Kuo, N Savaraj
Despite numerous reports on immune checkpoint inhibitor for the treatment of non-small cell lung cancer (NSCLC), the response rate remains low but durable. Thus cisplatin still plays a major role in the treatment of NSCLC. While there are many mechanisms involved in cisplatin resistance, alteration in metabolic phenotypes with elevated levels of reactive oxygen species (ROS) are found in several cisplatin resistant tumors. These resistant cells become more reliant on mitochondria oxidative metabolism instead of glucose...
April 28, 2017: Cell & Developmental Biology
https://www.readbyqxmd.com/read/28819440/microrna-204-5p-inhibits-invasion-and-metastasis-of-laryngeal-squamous-cell-carcinoma-by-suppressing-forkhead-box-c1
#8
Wei Gao, Yongyan Wu, Xiaoling He, Chunming Zhang, Meixia Zhu, Bo Chen, Qingqing Liu, Xukuan Qu, Weiyan Li, Shuxin Wen, Binquan Wang
Background and aim: Understanding the molecular biological mechanisms underlying laryngeal squamous cell carcinoma (LSCC) invasion and metastasis is crucial for diagnosis, treatment, and prognosis. We aimed to examine the expression of the tumor suppressor microRNA-204-5p (miR-204-5p) and its target gene, forkhead box C1 (FOXC1), in human LSCC and explore their roles in the malignant behaviors of LSCC Hep-2 and TU-177 cells. Methods: The regulatory effects of miR-204-5p on the 3' untranslated region of FOXC1 predicted by bioinformatics were tested by dual-luciferase reporter assay...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819436/epithelial-mesenchymal-transition-potential-regulator-of-abc-transporters-in-tumor-progression
#9
REVIEW
Zong-Sheng Jiang, Yan-Zi Sun, Shao-Ming Wang, Jun-Shan Ruan
Epithelial-mesenchymal transition (EMT) can directly contribute to some malignant phenotypes of tumor cells including invasion, metastasis and resistance to chemotherapy. Although EMT is widely demonstrated to play a critical role in chemoresistance and metastasis, the potential signaling network between EMT and drug resistance is still unclear. The distribution of drugs in the internal and external environment of the tumor cells is tightly linked with ATP-binding cassette (ABC) transporters. Recent studies have shown that ABC transporters expression changed continuously during EMT...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819404/activin-b-regulates-adhesion-invasiveness-and-migratory-activities-in-oral-cancer-a-potential-biomarker-for-metastasis
#10
Akihiro Kita, Atsushi Kasamatsu, Dai Nakashima, Yosuke Endo-Sakamoto, Sho Ishida, Toshihiro Shimizu, Yasushi Kimura, Isao Miyamoto, Shusaku Yoshimura, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Activin B, a homodimer of inhibin beta b (INHBB), is a multifunctional cytokine belonging to the transforming growth factor-β (TGF-β) family. However, the molecular functions and clinical relevance of activin B have not been determined in oral cancer. We investigated the critical roles of activin B in oral squamous cell carcinoma (OSCC). We performed quantitative reverse transcriptase-polymerase chain reaction, Western blotting, and immunohistochemistry to study INHBB expression in OSCC-derived cell lines and OSCC clinical samples...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819379/hypoxia-inducible-factor-1-alpha-correlates-with-tumor-associated-macrophages-infiltration-influences-survival-of-gastric-cancer-patients
#11
Wei-Jie Zhang, Cheng Chen, Zhi-Hua Zhou, Shan-Ting Gao, Teong Jin Tee, Liu-Qing Yang, Yuan-Yuan Xu, Tao-Hong Pang, Xin-Yun Xu, Qi Sun, Min Feng, Hao Wang, Chun-Lei Lu, Guo-Zhong Wu, Sheng Wu, Wen-Xian Guan, Gui-Fang Xu
Background: Hypoxia was a common feature for accelerating tumor metastasis by both inducting epithelial-mesenchymal transition (EMT) of tumor cells and polarization of tumor-associated macrophages (TAMs). The association and roles between hypoxia, EMT and TAMs in the biological behavior of gastric cancer (GC) for the time being recurrence is unclear. Material and methods: hypoixa by expression of hypoxia-inducible factor-1 alpha (HIF-1α), polarized functional status of infiltrated TAMs by immunohistochemical staining of CD68 and CD163, and the expression of E-cadherin as EMT property had been evaluated in 236 patients consecutive with histologically confirmed GC...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819306/prognostic-significance-of-edil3-expression-and-correlation-with-mesenchymal-phenotype-and-microvessel-density-in-lung-adenocarcinoma
#12
Dongjun Jeong, Seona Ban, Seunghyun Oh, Su Jin Lee, Seong Yong Park, Young Wha Koh
We examined the prognostic significance of Epidermal Growth Factor-like repeats and Discoidin I-Like Domains 3 (EDIL3) expression and its correlations with mesenchymal phenotype and microvessel density in non-small cell lung carcinoma (NSCLC). A total of 268 NSCLC specimens were evaluated retrospectively by immunohistochemical staining for EDIL3, EMT markers (e-cadherin, β-catenin, and vimentin), and CD31 to measure microvessel density. EDIL3, e-cadherin, β-catenin, and vimentin were expressed in 16%, 22...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819223/levobuipivacaine-induced-dissemination-of-a549-lung-cancer-cells
#13
Shun-Ming Chan, Bo-Feng Lin, Chih-Shung Wong, Wen-Ting Chuang, Yu-Ting Chou, Zhi-Fu Wu
While anaesthetics are frequently used on cancer patients during surgical procedures, their consequence on cancer progression remains to be elucidated. In this study, we sought to investigate the influence of local anesthetics on lung cancer cell dissemination in vitro and in vivo. A549 human non-small lung cancer cells were treated with various local anaesthetics including ropivacaine, lidocaine, levobupivacaine and bupivacaine. Cell barrier property was assessed using an electric cell-substrate impedance sensing (ECIS) system...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819095/non-coding-rnas-participate-in-the-regulatory-network-of-cldn4-via-cerna-mediated-mirna-evasion
#14
Yong-Xi Song, Jing-Xu Sun, Jun-Hua Zhao, Yu-Chong Yang, Jin-Xin Shi, Zhong-Hua Wu, Xiao-Wan Chen, Peng Gao, Zhi-Feng Miao, Zhen-Ning Wang
Thousands of genes have been well demonstrated to play important roles in cancer progression. As genes do not function in isolation, they can be grouped into "networks" based on their interactions. In this study, we discover a network regulating Claudin-4 in gastric cancer. We observe that Claudin-4 is up-regulated in gastric cancer and is associated with poor prognosis. Claudin-4 reinforce proliferation, invasion, and EMT in AGS, HGC-27, and SGC-7901 cells, which could be reversed by miR-596 and miR-3620-3p...
August 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28818997/ccr2-3-utr-functions-as-a-competing-endogenous-rna-to-inhibit-breast-cancer-metastasis
#15
Jinhang Hu, Xiaoman Li, Xinwei Guo, Qianqian Guo, Chenxi Xiang, Zhiting Zhang, Yingying Xing, Tao Xi, Lufeng Zheng
Diverse RNA transcripts acting as competing endogenous RNAs (ceRNAs) can co-regulate each other's expression by competing for shared microRNAs. CCR2 protein, the receptor of CCL2, is implicated in cancer progression. However, our results showed that higher CCR2 mRNA level was remarkably associated with prolonged survival of breast cancer patients. The conflicting results prompt us to study the non-coding function of CCR2 mRNA. We indicated that CCR2 3'UTR inhibited MDA-MB-231 and MCF-7 cells metastasis by repressing EMT in vitro and suppressed breast cancer metastasis in vivo Mechanistically, CCR2 3'UTR modulated RhoGAP protein STARD13 expression via acting as a STARD13 ceRNA in a microRNA-dependent and protein coding-independent manner...
August 17, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28817834/mdm2-promotes-epithelial-mesenchymal-transition-and-metastasis-of-ovarian-cancer-skov3-cells
#16
Ying Chen, Dan-Dan Wang, Ye-Ping Wu, Dan Su, Tian-Yi Zhou, Ren-Hua Gai, Ying-Ying Fu, Lin Zheng, Qiao-Jun He, Hong Zhu, Bo Yang
BACKGROUND: Metastasis accounts for the most lethal reason for the death of ovarian cancer patients, but remains largely untreated. Epithelial-mesenchymal transition (EMT) is critical for the conversion of early-stage ovarian tumours into metastatic malignancies. Thus the exploration of the signalling pathways promoting EMT would open potential opportunities for the treatment of metastatic ovarian cancer. Herein, the putative role of MDM2 in regulating EMT and metastasis of ovarian cancer SKOV3 cells was investigated...
August 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28817830/microrna-200a-inhibits-transforming-growth-factor-%C3%AE-1-induced-proximal-tubular-epithelial-mesenchymal-transition-by-targeting-%C3%AE-catenin
#17
Yi Gong, Zhexue Qin, Baoshang Zhou, Hua Chen, Zhengmin Shi, Jing Zhang
BACKGROUND: The epithelial-mesenchymal transition (EMT) is a crucial event in the development of renal interstitial fibrosis (RIF). A growing body of evidence indicates that β-catenin plays an important role in various types of fibrosis. Although members of the microRNA (miRNA)-200 family have been suggested to suppress EMT in cancer and fibrosis, the function of miRNA-200a in regulating the progression of RIF is unknown. We speculate that miRNA-200a may hinder this progression through the suppression of β-catenin...
August 18, 2017: Nephron
https://www.readbyqxmd.com/read/28817737/myc-mediates-cancer-stem-like-cells-and-emt-changes-in-triple-negative-breast-cancers-cells
#18
Shuping Yin, Vino T Cheryan, Liping Xu, Arun K Rishi, Kaladhar B Reddy
Women with triple negative breast cancer (TNBC) have poor prognosis compared to other breast cancer subtypes. There were several reports indicating racial disparity in breast cancer outcomes between African American (AA) and European American (EA) women. For example, the mortality rates of AA breast cancer patients were three times higher than of EA patients, even though, the incidence is lower in AA women. Our in vitro studies indicate that cancer stem-like cells (CSCs) derived from AA TNBC cell lines have significantly higher self-renewal potential (mammosphere formation) than CSCs derived from EA cell lines...
2017: PloS One
https://www.readbyqxmd.com/read/28817313/ccr7-mediates-tgf-%C3%AE-1-induced-human-malignant-glioma-invasion-migration-and-epithelial-mesenchymal-transition-by-activating-mmp2-9-through-the-nuclear-factor-kappab-signaling-pathway
#19
Yanyan Zheng, Yiting Miu, Xiaokai Yang, Xiaoguo Yang, Meijia Zhu
Chemokine receptor 7 (CCR7) has emerged as an inducer of invasion, migration, and epithelial-mesenchymal transition (EMT) in cancer. In this research, human malignant glioma cells were stimulated with transforming growth factor beta 1 (TGF-β1) and siCCR7. The data show that CCR7 mediates TGF-β1-induced EMT, migration, and invasion in U251 and U87 cells and that these effects of TGF-β1 were reversed by treatment with siCCR7 or a CCR7 neutralizing antibody. Importantly, the TGF-β1-mediated increase in nuclear factor kappaB (NF-κB) activity in human glioma cells was reduced by treatment with siCCR7 or a CCR7 neutralizing antibody...
August 17, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28816009/protective-effect-of-atazanavir-sulfate-against-pulmonary-fibrosis-in-vivo-and-in-vitro
#20
Shina Song, Yunxia Ji, Guanghua Zhang, Xue Zhang, Bin Li, Defang Li, Wanglin Jiang
Atazanavir sulfate, an antiretroviral protease inhibitor, has been used to treat HIV/AIDS, but its ability to serve as an anti-pulmonary fibrosis (PF) agent remains unknown. In this study, the effects of atazanavir sulfate on various aspects of PF were examined and CoCl2 was used to induce the hypoxia-mimicking condition in vitro, including epithelial-mesenchymal transition (EMT) in A549 cells, endothelial-mesenchymal transition (EndMT) in human pulmonary microvascular endothelial cells (HPMECs), proliferation in human lung fibroblasts (HLF-1) and potential protective effects in human type I alveolar epithelial cells (AT I)...
August 16, 2017: Basic & Clinical Pharmacology & Toxicology
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