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https://www.readbyqxmd.com/read/28220242/expression-of-clonorchis-sinensis-giiispla2-protein-in-baculovirus-infected-insect-cells-and-its-overexpression-facilitating-epithelial-mesenchymal-transition-in-huh7-cells-via-akt-pathway
#1
Mei Shang, Zhizhi Xie, Zeli Tang, Lei He, Xiaoyun Wang, Caiqin Wang, Yinjuan Wu, Ye Li, Lu Zhao, Zhiyue Lv, Zhongdao Wu, Yan Huang, Xinbing Yu, Xuerong Li
Although prior studies confirmed that group III secretory phospholipase A2 of Clonorchis sinensis (CsGIIIsPLA2) had stimulating effect on liver fibrosis by binding to LX-2 cells, large-scale expression of recombinant protein and its function in the progression of hepatoma are worth exploring. Because of high productivity and low lipopolysaccharides (LPS) in the Sf9-baculovirus expression system, we firstly used this system to express the coding region of CsGIIIsPLA2. The molecular weight of recombinant CsGIIIsPLA2 protein was about 34 kDa...
February 20, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28214216/cancer-stem-cell-cytokeratins-and-epithelial-to-mesenchymal-transition-markers-expression-in-oral-squamous-cell-carcinoma-derived-from-ortothopic-xenoimplantation-of-cd44-high-cells
#2
Nathália Paiva de Andrade, Maria Fernanda Setúbal Destro Rodrigues, Camila Oliveira Rodini, Fabio Daumas Nunes
Oral squamous cell carcinoma (OSCC) is the most prevalent neoplasia of oral cavity worldwide and prognosis remains unchanged in decades. Recently, different authors reported that head and neck squamous cell carcinomas have a subpopulation of tumor initiating cells that apparently correspond to cancer stem cells (CSC) and are also responsible for tumor growth and metastasis. The purpose of the present study was to investigate the microscopic and phenotypic characteristics of OSCC tumors induced after orthotopic xenoimplantation of SCC9(WT) cell line and CSC-enriched subpopulation isolated from SCC9 cell line based on high expression of the putative CSC marker CD44...
December 23, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28209530/slc39a6-promotes-aggressiveness-of-esophageal-carcinoma-cells-by-increasing-intracellular-levels-of-zinc-activating-phosphatidylinositol-3-kinase-signaling-and-upregulating-genes-that-regulate-metastasis
#3
Xinxin Cheng, Lixuan Wei, Xudong Huang, Jian Zheng, Mingming Shao, Ting Feng, Jun Li, Yaling Han, Wenle Tan, Wen Tan, Dongxin Lin, Chen Wu
BACKGROUND & AIMS: A common variant in the solute carrier family 39 member 6 gene (SLC39A6) has been associated with survival times of patients with esophageal squamous-cell carcinoma (ESCC). We investigated the function of SLC39A6 and ways in which this variant affects tumor progression by studying ESCC samples and cell lines. METHODS: SLC39A6 was expressed, or knocked down by expression of small hairpin RNAs, in ESCC cells (KYSE30 and KYSE450) and HeLa cells using lentiviral vectors; we analyzed effects on proliferation, colony formation, migration, and invasion in vitro...
February 13, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28209428/an-artificial-intelligence-based-improved-classification-of-two-phase-flow-patterns-with-feature-extracted-from-acquired-images
#4
C Shanthi, N Pappa
Flow pattern recognition is necessary to select design equations for finding operating details of the process and to perform computational simulations. Visual image processing can be used to automate the interpretation of patterns in two-phase flow. In this paper, an attempt has been made to improve the classification accuracy of the flow pattern of gas/ liquid two- phase flow using fuzzy logic and Support Vector Machine (SVM) with Principal Component Analysis (PCA). The videos of six different types of flow patterns namely, annular flow, bubble flow, churn flow, plug flow, slug flow and stratified flow are recorded for a period and converted to 2D images for processing...
February 13, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28197390/the-immune-checkpoint-ligand-pd-l1-is-upregulated-in-emt-activated-human-breast-cancer-cells-by-a-mechanism-involving-zeb-1-and-mir-200
#5
Muhammad Zaeem Noman, Bassam Janji, Abderemane Abdou, Meriem Hasmim, Stéphane Terry, Tuan Zea Tan, Fathia Mami-Chouaib, Jean Paul Thiery, Salem Chouaib
PD-L1 expression and regulation by mesenchymal tumor cells remain largely undefined. Here, we report that among different EMT-activated MCF7 human breast cancer cell clones, PD-L1 was differentially upregulated in MCF7 sh-WISP2, MCF7-1001/2101, and MDA-MB-231 cells but not in MCF7 SNAI1 and MCF7 SNAI1-6SA cells. Mechanistic investigations revealed that siRNA silencing of ZEB-1, but not SNAI1, TWIST, or SLUG and overexpression of miR200 family members in MCF7 sh-WISP2 cells strongly decreased PD-L1 expression...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28194635/using-the-slug-mucosal-irritation-assay-to-investigate-the-tolerability-of-tablet-excipients-on-human-skin-in-the-context-of-the-use-of-a-nipple-shield-delivery-system
#6
Richard Kendall, Joke Lenoir, Stephen Gerrard, Rebekah L Scheuerle, Nigel K H Slater, Catherine Tuleu
PURPOSE: Neonates are particularly challenging to treat. A novel patented drug delivery device containing a rapidly disintegrating tablet held within a modified nipple shield (NSDS) was designed to deliver medication to infants during breastfeeding. However concerns exist around dermatological nipple tolerability with no pharmaceutical safety assessment guidance to study local tissue tolerance of the nipple and the areola. This is the first Slug Mucosal Irritation (SMI) study to evaluate irritancy potential of GRAS excipients commonly used to manufacture rapidly disintegrating immediate release solid oral dosage form METHODS: Zinc sulphate selected as the antidiarrheal model drug that reduces infant mortality, was blended with functional excipients at traditional levels [microcrystalline cellulose, sodium starch glycolate, croscarmellose sodium, magnesium stearate]...
February 13, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28192678/assaying-the-stability-and-inactivation-of-aav-serotype-1-vectors
#7
Douglas B Howard, Brandon K Harvey
Adeno-associated virus (AAV) vectors are a commonplace tool for gene delivery ranging from cell culture to human gene therapy. One feature that makes AAV a desirable vector is its stability, in regard to both the duration of transgene expression and retention of infectivity as a viral particle. This study examined the stability of AAV serotype 1 (AAV1) vectors under different conditions. First, transducibility after storage at 4°C decreased 20% over 7 weeks. Over 10 freeze-thaw cycles, the resulting transduction efficiency became variable at 60-120% of a single thaw...
February 2017: Human Gene Therapy Methods
https://www.readbyqxmd.com/read/28192397/downregulation-of-mir-218-contributes-to-epithelial-mesenchymal-transition-and-tumor-metastasis-in-lung-cancer-by-targeting-slug-zeb2-signaling
#8
Z-M Shi, L Wang, H Shen, C-F Jiang, X Ge, D-M Li, Y-Y Wen, H-R Sun, M-H Pan, W Li, Y-Q Shu, L-Z Liu, S C Peiper, J He, B-H Jiang
Epithelial-mesenchymal transition (EMT) has been recognized as a key element of cell migration and invasion in lung cancer; however, the underlying mechanisms are not fully elucidated. Recently, emerging evidence suggest that miRNAs have crucial roles in control of EMT and EMT-associated traits such as migration, invasion and chemoresistance. Here, we found that miR-218 expression levels were significantly downregulated in lung cancer tissues compared with adjacent non-cancerous tissues, and the levels of miR-218 were significantly associated with histological grades and lymph node metastasis...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28188636/fluorescence-hyperspectral-imaging-technique-for-foreign-substance-detection-on-fresh-cut-lettuce
#9
Changyeun Mo, Giyoung Kim, Moon S Kim, Jongguk Lim, Hyunjeong Cho, Jinyoung Yang Barnaby, Byoung-Kwan Cho
BACKGROUND: Nondestructive methods based on fluorescence hyperspectral imaging (HSI) techniques were developed to detect worms on fresh-cut lettuce. The optimal wavebands for detecting the worms were investigated using the one-way ANOVA and correlation analyses. RESULTS: The worm detection imaging algorithms, RSI-I(492-626)/492 , provided a prediction accuracy of 99.0%. The fluorescence HSI techniques indicated that the spectral images with a pixel size of 1 × 1 mm had the best classification accuracy for worms...
February 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28186089/adenovirus-mediated-tipe2-overexpression-inhibits-gastric-cancer-metastasis-via-reversal-of-epithelial-mesenchymal-transition
#10
H Yin, X Huang, M Tao, Q Hu, J Qiu, W Chen, J Wu, Y Xie
Tumor necrosis factor (TNF)-alpha-induced protein 8-like 2 (TNFAIP8L2; also termed TIPE2) has been shown to be involved in both the immune-negative modulation and cancer. We previously found that TIPE2 is lost in human gastric cancer, and TIPE2 restoration suppresses gastric cancer growth by induction of apoptosis and impairment of protein kinase B (PKB/AKT) and extracellular signal-regulated kinase-1/2 (ERK1/2) signaling. However, its correlation with epithelial-mesenchymal transition (EMT) in gastric cancer is largely elusive...
February 10, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28179411/pancreatic-neuroendocrine-tumors-and-emt-behavior-are-driven-by-the-csc-marker-dclk1
#11
Yu Ikezono, Jun Akiba, Mitsuhiko Abe, Takafumi Yoshida, Fumitaka Wada, Toru Nakamura, Hideki Iwamoto, Atsutaka Masuda, Takahiko Sakaue, Hirohisa Yano, Takuji Torimura, Osamu Tsuruta, Hironori Koga
: Doublecortin-like kinase 1 (DCLK1), a marker for intestinal and pancreatic cancer stem cells, is highly expressed in neuroblastomas. This study was conducted to assess DCLK1 expression levels in pancreatic neuroendocrine tumor (PNET) tissues and to explore the roles of this molecule in clinical tissue from multiple PNET patients, cells (BON1, QGP1, and CM), and tumor xenografts. Immunohistochemically, all PNET tissues highly and diffusely expressed DCLK1 as a full-length isoform, identical to that detected in primary liver NETs...
February 8, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28177668/chimaphilin-inhibits-human-osteosarcoma-cells-invasion-and-metastasis-through-suppressing-the-tgf-%C3%AE-1-induced-epithelial-to-mesenchymal-transition-markers-via-pi-3k-akt-erk1-2-and-smad-signaling-pathways
#12
Feng Dong, Tingting Liu, Hao Jin, Wenbo Wang
Epithelial-to-mesenchymal transition is a cellular process associated with cancer invasion and metastasis. However, the anti-metastatic effects of chimaphilin remain elusive. In this study, we attempted to investigate the potential use of chimaphilin as an inhibitor of TGF-β1-induced epithelial-to-mesenchymal in U2OS cells. We found that TGF-β1 induced epithelial-to-mesenchymal to promote U2OS cells invasion and metastasis. Western blotting demonstrated that chimaphilin inhibited U2OS cells invasion and migration, increased the expression of the epithelial phenotype marker E-cadherin, repressed the expression of the mesenchymal phenotype marker Vimentin, as well as decreased the level of epithelial-to-mesenchymal-inducing transcription factors Snail1 and Slug during the initiation of TGF-β1-induced epithelial-to-mesenchymal...
January 29, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28169279/corrigendum-daxx-inhibits-hypoxia-induced-lung-cancer-cell-metastasis-by-suppressing-the-hif-1%C3%AE-hdac1-slug-axis
#13
Ching-Wen Lin, Lu-Kai Wang, Shu-Ping Wang, Yih-Leong Chang, Yi-Ying Wu, Hsuan-Yu Chen, Tzu-Hung Hsiao, Wei-Yun Lai, Hsuan-Hsuan Lu, Ya-Hsuan Chang, Shuenn-Chen Yang, Ming-Wei Lin, Chi-Yuan Chen, Tse-Ming Hong, Pan-Chyr Yang
No abstract text is available yet for this article.
February 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28159931/prostate-derived-ets-factor-improves-prognosis-and-represses-proliferation-and-invasion-in-hepatocellular-carcinoma
#14
Er-Bao Chen, Shao-Lai Zhou, Xu-Guang Pang, Dan Yin, Pei-Zhen Miao, Yi Yang, Qing Chen, Kai Zhu, Dong-Mei Gao, Tian-Shu Liu, Xiao-Yi Wang, Ying-Hong Shi, Wei-Zhong Wu, Jian Zhou, Zheng-Jun Zhou, Zhi Dai
Prostate-derived E-twenty-six (ETS) factor (PDEF), an epithelium-specific ETS transcription factor, regulates carcinogenesis and tumor progression. The prognostic importance and biologic functions in hepatocellular carcinoma (HCC) have not been established. We investigated PDEF expression in 400 HCC patients using quantitative real-time polymerase chain reaction, western blot and immunohistochemistry analysis. PDEF expression was significantly lower in tumors than in peritumoral tissues. Lower PDEF levels were associated with poorer prognosis in patients...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28143510/gastropod-derived-haemocyte-extracellular-traps-entrap-metastrongyloid-larval-stages-of-angiostrongylus-vasorum-aelurostrongylus-abstrusus-and-troglostrongylus-brevior
#15
Malin K Lange, Felipe Penagos-Tabares, Tamara Muñoz-Caro, Ulrich Gärtner, Helena Mejer, Roland Schaper, Carlos Hermosilla, Anja Taubert
BACKGROUND: Phagocyte-derived extracellular traps (ETs) were recently demonstrated mainly in vertebrate hosts as an important effector mechanism against invading parasites. In the present study we aimed to characterize gastropod-derived invertebrate extracellular phagocyte trap (InEPT) formation in response to larval stages of important canine and feline metastrongyloid lungworms. Gastropod haemocytes were isolated from the slug species Arion lusitanicus and Limax maximus, and the snail Achatina fulica, and exposed to larval stages of Angiostrongylus vasorum, Aelurostrongylus abstrusus and Troglostrongylus brevior and investigated for gastropod-derived InEPT formation...
January 31, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28131904/potential-therapeutic-targets-of-epithelial-mesenchymal-transition-in-melanoma
#16
Ross L Pearlman, Mary Katherine Montes de Oca, Harish Chandra Pal, Farrukh Afaq
Melanoma is a cutaneous neoplastic growth of melanocytes with great potential to invade and metastasize, especially when not treated early and effectively. Epithelial-mesenchymal transition (EMT) is the process by which melanocytes lose their epithelial characteristics and acquire mesenchymal phenotypes. Mesenchymal protein expression increases the motility, invasiveness, and metastatic potential of melanoma. Many pathways play a role in promotion of mesenchymal protein expression including RAS/RAF/MEK/ERK, PI3K/AKT/mTOR, Wnt/β-catenin, and several others...
January 25, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28128736/small-interfering-rna-sirna-against-slug-induces-apoptosis-and-sensitizes-human-anaplastic-thyroid-carcinoma-cells-to-doxorubicin
#17
Yinghua Pan, Peiji Liu, Deng Chen, Shushu Zhao
OBJECTIVE: Anaplastic thyroid carcinoma (ATC) is one of the most aggressive human cancers and often shows resistance to multimodal therapeutic approaches. It has been shown that the transcriptional repressor Slug inhibits the chemotherapeutic agent-induced apoptosis of cancer cells. We evaluated whether targeting of Slug could augment doxorubicin (DOX)-induced apoptosis of ATC cells. We also determined changes in PUMA (p53-upregulated modulator of apoptosis) expression levels to identify possible mechanisms of their combined actions...
January 20, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28122142/dysregulation-of-akt1-a-mir-138-target-gene-is-involved-in-the-migration-and-invasion-of-tongue-squamous-cell-carcinoma
#18
Muyuan Ji, Wei Wang, Wangxiang Yan, Dan Chen, Xueqiang Ding, Anxun Wang
BACKGROUND: AKT1, also known as PKBα, is abnormally expressed in various malignancies. In this study, we aimed to evaluate the role of AKT1 in the tongue squamous cell carcinoma (TSCC) and further clarify the mechanisms of AKT1 in the migration and invasion of TSCC. METHODS: At first, immunohistochemistry (IHC) was conducted to detect the expression of AKT1 in TSCC. Then, we determined the role of AKT1 in the migration and invasion of TSCC and further investigated whether AKT1 was the target gene of miR-138 by using dual luciferase reporter assays and western blot...
January 25, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28115976/photosynthate-accumulation-in-solar-powered-sea-slugs-starving-slugs-survive-due-to-accumulated-starch-reserves
#19
Elise M J Laetz, Victoria C Moris, Leif Moritz, André N Haubrich, Heike Wägele
BACKGROUND: Solar-powered sea slugs are famed for their ability to survive starvation due to incorporated algal chloroplasts. It is well established that algal-derived carbon can be traced in numerous slug-derived compounds, showing that slugs utilize the photosynthates produced by incorporated plastids. Recently, a new hypothesis suggests that the photosynthates produced are not continuously made available to the slug. Instead, at least some of the plastid's photosynthetic products are stored in the plastid itself and only later become available to the slug...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28115724/how-jet-lag-impairs-major-league-baseball-performance
#20
Alex Song, Thomas Severini, Ravi Allada
Laboratory studies have demonstrated that circadian clocks align physiology and behavior to 24-h environmental cycles. Examination of athletic performance has been used to discern the functions of these clocks in humans outside of controlled settings. Here, we examined the effects of jet lag, that is, travel that shifts the alignment of 24-h environmental cycles relative to the endogenous circadian clock, on specific performance metrics in Major League Baseball. Accounting for potential differences in home and away performance, travel direction, and team confounding variables, we observed that jet-lag effects were largely evident after eastward travel with very limited effects after westward travel, consistent with the >24-h period length of the human circadian clock...
February 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
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