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https://www.readbyqxmd.com/read/29332338/x-ray-induced-epithelial-mesenchymal-transition-in-sw480-colorectal-cancer-cells-and-its-potential-mechanisms
#1
Suyong Lin, Shaoqin Chen, Zhihua Chen, Qibao Dai, Chunlin Ke
PURPOSE: The purpose of this study was to investigate the relation between X-ray irradiation and epithelial-mesenchymal transition (EMT), as well as the potential mechanisms of X-ray-induced EMT in SW480 colorectal cancer (CRC) cells. METHODS: It is well known that EMT plays a critical role in invasive and metastatic of colorectal cancer progression. However, the possible role of X-ray irradiation on EMT in colorectal cancer is widely disputed and its potential mechanisms are unclear...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29331644/ozone-exposure-induces-respiratory-barrier-biphasic-injury-and-inflammation-controlled-by-interleukin-33
#2
Chloé Michaudel, Claire Mackowiak, Isabelle Maillet, Louis Fauconnier, Cezmi Akdis, Milena Sokolowska, Anita Dreher, Hern-Tze Tina Tan, Valérie F Quesniaux, Bernhard Ryffel, Dieudonnée Togbe
BACKGROUND: IL-33 plays critical role in the regulation of tissue homeostasis, injury and repair. Whether IL-33 regulates neutrophil recruitment and function independently of airways hyperresponsiveness (AHR) in ozone induced lung injury and inflammation is unclear. OBJECTIVE: To examine the role of IL-33/ST2 axis in lung inflammation upon acute ozone exposure in mice. METHODS: ST2 and IL-33 deficient mice, IL-33-citrine reporter and C57BL/6 (WT) mice underwent a single ozone exposure (1 ppm for 1h) in all studies...
January 10, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29331415/nogo-b-receptor-promotes-epithelial-mesenchymal-transition-in-non-small-cell-lung-cancer-cells-through-the-ras-erk-snail1-pathway
#3
Donghua Wu, Baofeng Zhao, Xiaoyu Qi, Fang Peng, Hailu Fu, Xinming Chi, Qing Robert Miao, Shujuan Shao
Nogo-B receptor (NgBR) is a specific receptor of Nogo-B that regulates vascular remodeling and angiogenesis. Previously, we found that NgBR promotes the membrane translocation and activation of Ras in breast cancer cells and enhances the chemoresistance of hepatocellular carcinoma cells to 5-fluorouracil. However, the role of NgBR in lung cancer has not yet been elucidated. In the present study, we found that NgBR knockdown inhibited epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) cells in vitro and metastasis of NSCLC cells in vivo...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29331414/inhibition-of-fasn-and-er%C3%AE-signalling-during-hyperglycaemia-induced-matrix-specific-emt-promotes-breast-cancer-cell-invasion-via-a-caveolin-1-dependent-mechanism
#4
H A Zielinska, J M P Holly, A Bahl, C M Perks
Since disturbed metabolic conditions such as obesity and diabetes can be critical determinants of breast cancer progression and therapeutic failure, we aimed to determine the mechanism responsible for their pro-oncogenic effects. Using non-invasive, epithelial-like ERα-positive MCF-7 and T47D human breast cancer cells we found that hyperglycaemia induced epithelial to mesenchymal transition (EMT), a key programme responsible for the development of metastatic disease. This was demonstrated by loss of the epithelial marker E-cadherin together with increases in mesenchymal markers such as vimentin, fibronectin and the transcription factor SLUG, together with an enhancement of cell growth and invasion...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29331390/the-tet2-e-cadherin-%C3%AE-catenin-regulatory-loop-confers-growth-and-invasion-in-hepatocellular-carcinoma-cells
#5
Guohua Yang, Xiang Zeng, Mengchuan Wang, Aiguo Wu
The poor outcome of hepatocellular carcinoma (HCC) is mainly due to the development of fast growth, invasion and metastasis. The role of TET2 has been implicated in some cancer types, but its role and mechanisms in HCC remains elusive. In this study, our findings indicated that TET2 expression frequently increased in HCC and that TET2 expressional upregulation correlated with HCC progression. TET2 knockdown inhibited HCC cells proliferation in vitro and growth in vivo, and inhibited the invasion potential of HCC cells...
January 10, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29328404/chronic-oxymatrine-treatment-induces-resistance-and-epithelial%C3%A2-mesenchymal-transition-through-targeting-the-long-non-coding-rna-malat1-in-colorectal-cancer-cells
#6
Yibai Xiong, Jun Wang, Huirong Zhu, Lingshuang Liu, Yi Jiang
A major reason for colorectal cancer (CRC) chemoresistance is the enhanced migration and invasion of cancer cells, such as the cell acquisition of epithelial-mesenchymal transition (EMT). Long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been considered as a pro-oncogene in multiple cancers. However, the precise functional mechanism of lncRNA MALAT1 in chemoresistance and EMT is not well known. In the present study, we focused on the effect of oxymatrine on CRC cells and further investigated the role of MALAT1 in oxymatrine-induced resistance and EMT process...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29327363/pretreatment-with-substance-p-alleviates-irritation-due-to-sodium-lauryl-sulphate-exposure-by-maintaining-e-cadherin-expression-on-human-keratinocytes
#7
H W Choi, H J Ahn, M K Shin, Y S Son, K S Kim
No abstract text is available yet for this article.
January 12, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29327067/overexpression-of-nogo-receptor-3-ngr3-correlates-with-poor-prognosis-and-contributes-to-the-migration-of-epithelial-cells-of-nasopharyngeal-carcinoma-patients
#8
Jiang-Yi He, Ping Han, Yu Zhang, Yong-Dong Liu, Shi-Jian Song, Guo-Kai Feng, Yu An, Ai-Jun Zhou, Hong-Bo Wang, Li Yuan, Zhi-Rui Lin, Tian-Liang Xia, Man-Zhi Li, Yan-Min Liu, Xiao-Ming Huang, Hua Zhang, Qian Zhong
Lymph node metastasis (N classification) is one of the most important prognostic factors of nasopharyngeal carcinoma (NPC), and nerve involvement is associated with the transition of the N category in NPC patients. Although the nervous system has been reported to participate in many types of cancer progression, its functions in NPC progression remains unknown. Through analysis of gene profiling data, we demonstrate an enrichment of genes associated with neuronal development and differentiation in NPC tissues and cell lines...
January 11, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29324568/effects-of-pressure-support-ventilation-on-ventilator-induced-lung-injury-in-mild-acute-respiratory-distress-syndrome-depend-on-level-of-positive-end-expiratory-pressure
#9
Paulo A F Magalhães, Gisele de A Padilha, Lillian Moraes, Cíntia L Santos, Ligia de A Maia, Cassia L Braga, Maria do Carmo M B Duarte, Lívia B Andrade, Alberto Schanaider, Vera L Capellozzi, Robert Huhle, Marcelo Gama de Abreu, Paolo Pelosi, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats...
January 10, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29324443/epithelial-mesenchymal-transition-leads-to-nk-cell-mediated-metastasis-specific-immunosurveillance-in-lung-cancer
#10
Peter J Chockley, Jun Chen, Guoan Chen, David G Beer, Theodore J Standiford, Venkateshwar G Keshamouni
During epithelial-mesenchymal transition (EMT) epithelial cancer cells trans-differentiate into highly-motile, invasive, mesenchymal-like cells giving rise to disseminating tumor cells. Only few of these disseminated cells successfully metastasize. Immune cells and inflammation in the tumor microenvironment was shown to drive EMT, but few studies investigated the consequences of EMT on tumor immunosurveillance. In addition to initiating metastasis, we demonstrate that EMT confers increased susceptibility to NK cells and contributes, in part, to the inefficiency of the metastatic process...
January 11, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29324356/inflammation-induced-er-stress-affects-absorptive-intestinal-epithelial-cells-function-and-integrity
#11
Sucheera Chotikatum, Hassan Y Naim, Nahed El-Najjar
Recent studies have linked impairment of intestinal epithelial function in inflammatory bowel disease to the disturbance of endoplasmic reticulum homeostasis (ER) in response to stress. Most studies are on goblet and Paneth cells, which are considered more susceptible to stress due to their role in the protection of intestinal epithelium against microbes and harmful substances. However, studies on the role of inflammation-induced ER stress in absorptive intestinal cells are scarce. In this study, we show, using Caco-2 cells as a model of intestinal epithelial barrier, that inducing ER stress using a cocktail mixture of pro-inflammatory mediators [TNFα (50ng/ml), MCP1 (50ng/ml), and IL-1β (25ng/ml)] as observed in IBD patients induces ER stress and leads to significant changes in key proteins of the apical (sucrase-isomaltase (SI), dipeptidyl-peptidase (DPPIV), and ezrin) and basolateral (E-cadherin, zonula occludens (ZO-1), and connexin-43) membranes...
January 8, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29323792/the-retinamide-vnlg-152-inhibits-ar-ar-v7-and-mnk-eif4esignaling-pathways-to-suppress-emt-and-castration-resistant-prostate-cancer-xenograft-growth
#12
Vidya P Ramamurthy, Senthilmurugan Ramalingam, Lalji K Gediya, Vincent C O Njar
VNLG-152, a lead novel retinamide (NR) shown to suppress growth and progression in genetically diverse PCa cells via inhibition of AR signaling and eIF4E translational machinery. Herein, we report therapeutic effects of VNLG-152 on castration resistant prostate cancer (CRPC) growth and metastatic phenotype in CRPC tumor xenograft model. Administration of VNLG-152 significantly and dose-dependently suppressed the growth of aggressive CWR22Rv1 tumors by 63.4% and 76.3% respectively (P = 0.001), vs. vehicle with no host toxicity...
January 11, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29323181/oral-exposure-of-low-dose-bisphenol-a-promotes-proliferation-of-dorsolateral-prostate-and-induces-epithelial-mesenchymal-transition-in-aged-rats
#13
Dong-Yan Huang, Cheng-Cheng Zheng, Qi Pan, Shuang-Shuang Wu, Xin Su, Lei Li, Jian-Hui Wu, Zu-Yue Sun
Bisphenol A (BPA) is a well-known endocrine disruptor compound reported to have prostate toxicity. This study aimed to assess the effect of BPA on the proliferation of dorsolateral prostate (DLP) and the expression of epithelial-mesenchymal transition (EMT)-related genes in aged rats. Male aged SD rats were treated with BPA (10.0, 30.0, and 90.0 µg/kg i.g., daily) or vehicle (i.g., daily) for 3 months. Treatment with BPA resulted in increased the expression of PCNA, DLP weight and DLP epithelial height compared with the control group (P < 0...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321957/high-expression-of-palb2-predicts-poor-prognosis-in-patients-with-advanced-breast-cancer
#14
Jingquan Li, Mian Li, Peizhan Chen, Qian Ba
PALB2 mutation is associated with increased breast cancer risk; however, PALB2 mutation is rare in sporadic breast cancer cases and little is known about PALB2 expression in breast cancer. Here, we evaluated the prognostic effects of PALB2 with tissue microarray specimens of 117 female breast cancer patients, and determined the potential underlying mechanisms in cell models. In immunohistochemical analysis, we found increased expression of PALB2 in breast cancer tissues compared with the adjacent normal ductal epithelium (P < 0...
January 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29320956/transvaginal-elastosonography-as-an-imaging-technique-for-diagnosing-adenomyosis
#15
Xishi Liu, Ding Ding, Yunyun Ren, Sun-Wei Guo
To test the hypothesis that the lesional stiffness as measured by transvaginal elastosonography (TVESG) correlates with the extent of fibrosis in adenomyotic (AM) lesions, and thus TVESG can be used to diagnose AM, we conducted 2 studies. The first evaluated the relationship, if any, between lesional stiffness and lesional histology in 35 women with histologically confirmed AM in comparison with tissue stiffness in 11 control myometrial (CM) and 8 uterine fibroids (UFs) tissue samples. The second validated the relationship between lesional stiffness and the severity of dysmenorrhea and the amount of menses in AM patients by recruiting 112 patients diagnosed with AM, 67 with UF, and 130 controls...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29317613/glucose-6-phosphate-dehydrogenase-is-indispensable-in-embryonic-development-by-modulation-of-epithelial-mesenchymal-transition-via-the-nox-smad3-mir-200b-axis
#16
Yi-Hsuan Wu, Ying-Hsuan Lee, Hung-Yu Shih, Shih-Hsiang Chen, Yi-Chuan Cheng, Daniel Tsun-Yee Chiu
Glucose-6-phosphate dehydrogenase (G6PD) is a housekeeping enzyme involved in the pentose phosphate shunt for producing nicotinamide adenine dinucleotide phosphate (NADPH). Severe G6PD deficiency leads to embryonic lethality, but the underlying mechanism is unclear. In the current study, the effects of G6PD on epithelial-mesenchymal transition (EMT), especially during embryonic development, were investigated. The knockdown of G6PD induced morphological changes, accompanied by the suppression of epithelial markers, E-cadherin and β-catenin, in A549 and MDCK cells...
January 9, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29317480/mir-205-targets-angiogenesis-and-emt-concurrently-in-anaplastic-thyroid-carcinoma
#17
Haleh Vosgha, Armin Ariana, Robert Smith, Alfred Lam
The current study aims to evaluate for the first time the inhibitory roles of miR-205 in the pathogenesis of anaplastic thyroid carcinoma. In addition, we investigated the mechanisms by which miR-205 regulates angiogenesis and epithelial-to-mesenchymal transition (EMT) in cancer. Two anaplastic thyroid carcinoma cell lines were transfected with the expression vector pCMV-MIR-205. Selected markers of angiogenesis and EMT including vascular endothelial growth factor A (VEGF-A) and zinc-finger E-box-binding homeobox 1 (ZEB1) were investigated by Western blot...
January 9, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29317263/keratinocyte-specific-ablation-of-ripk4-allows-epidermal-cornification-but-impairs-skin-barrier-formation
#18
Corinne Urwyler-Rösselet, Giel Tanghe, Kirsten Leurs, Barbara Gilbert, Riet De Rycke, Michiel De Bruyne, Saskia Lippens, Sonja Bartunkova, Philippe De Groote, Carine Niessen, Marek Haftek, Peter Vandenabeele, Wim Declercq
In humans, RIPK4 mutations can lead to the autosomal recessive Bartsocas-Papas and popliteal pterygium syndromes, which are characterized by severe skin defects, pterygia as well as clefting. We show here that the epithelial fusions observed in RIPK4 full KO mice are E-cadherin dependent, as keratinocyte-specific deletion of E-cadherin in RIPK4 full KO mice rescued the tail-to-body fusion and fusion of oral epithelia. To elucidate RIPK4 function in epidermal differentiation and development we generated epidermis-specific RIPK4 knockout mice (RIPK4EKO)...
January 6, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29317235/differentiating-breast-carcinoma-with-signet-ring-features-from-gastrointestinal-signet-ring-carcinoma-assessment-of-immunohistochemical-markers
#19
Yiang Hui, Yihong Wang, Gahie Nam, Jacqueline Fanion, Ashlee Sturtevant, Kara A Lombardo, Murray B Resnick
Signet-ring morphology is recognized throughout the gastrointestinal tract. However, this pattern may be observed in other primary sites giving rise to diagnostic challenges in the work-up of metastases. Relatively newer immunohistochemical markers have not been evaluated in this context. We assessed expression patterns of several common immunohistochemical markers in tumors with signet-ring morphology to delineate a pragmatic approach to this differential diagnosis. Primary breast and gastrointestinal carcinomas showing signet-ring features were reviewed...
January 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29316692/3-3-diindolylmethane-suppressed-cyprodinil-induced-epithelial-mesenchymal-transition-and-metastatic-related-behaviors-of-human-endometrial-ishikawa-cells-via-an-estrogen-receptor-dependent-pathway
#20
Bo-Gyoung Kim, Jin-Wook Kim, Soo-Min Kim, Ryeo-Eun Go, Kyung-A Hwang, Kyung-Chul Choi
Cyprodinil (CYP) is a pyrimidine amine fungicide that has been extensively used in agricultural areas. 3,3'-Diindolylmethane (DIM) is a derivative of the dietary phytoestrogen, indole-3-carbinol (I3C), which is derived from cruciferous vegetables and considered to be a cancer-preventive phytonutrient agent. In this study, the effects of CYP and DIM were examined on the cell viability, invasion, and metastasis of human endometrial cancer cells, Ishikawa, via epithelial mesenchymal transition (EMT). CYP increased the level of cell viability of Ishikawa cells compared to DMSO as a control, as did E2...
January 8, 2018: International Journal of Molecular Sciences
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