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https://www.readbyqxmd.com/read/28802586/nontypeable-haemophilus-influenzae-nthi-directly-interfere-with-the-regulation-of-e-cadherin-in-lung-epithelial-cells
#1
Inga Kaufhold, Sünja Osbahr, Kensuke Shima, Sebastian Marwitz, Kristina Rohmann, Daniel Drömann, Torsten Goldmann, Klaus Dalhoff, Jan Rupp
Loss of epithelial barriers characterized by reduction of E-cadherin is a hallmark of chronic obstructive pulmonary disease (COPD). We investigated the effects of nontypeable Haemophilus influenzae (NTHi) infections, associated with acute exacerbations of chronic bronchitis, on the regulation of E-cadherin in host cells. NTHi infection decreased E-cadherin mRNA and protein-levels in lung epithelial cells. E-cadherin reduction was mediated by activation of the fibroblast growth factor 2 (FGF2), the mammalian target of rapamycin (mTOR) and Slug...
August 10, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28801289/-lkb1-regulates-epithelial-mesenchymal-transition-in-peutz-jeghers-hamartoma-and-intestinal-epithelial-cells
#2
Chao Zhong, Liang Peng, Ran Li, Jing Chen, Xin-Qi Chen, Di Zeng, Xiao-Ping Xu, Zhi-Qing Wang, Chu-di Chen, Ya-Dong Wang, Ai-Min Li, Si-de Liu, Bao-Ping Wu
OBJECTIVE: To investigate the molecular mechanism by which LKB1 regulates epithelial-mesenchymal transition (EMT) in Peutz-Jeghers hamartoma and intestinal epithelial cells. METHODS: Immunohistochemistry was used to detect gene expression of LKB1, E-cadherin, and vimentin in 20 hamartoma tissues and 10 normal intestinal tissues, and collagen fiber deposition was analyzed using Masson trichrome staining. Normal intestinal epithelial NCM460 cells were transfected with LKB1 shRNA plasmid or negative control via lentiviral vectors, and the role of LKB1 in cell polarization and migration were determined using CCK8 and Transwell assays...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28800315/mir-99a-suppresses-proliferation-migration-and-invasion-of-esophageal-squamous-cell-carcinoma-cells-through-inhibiting-the-igf1r-signaling-pathway
#3
Li-Li Mei, Yun-Tan Qiu, Meng-Bing Huang, Wen-Jun Wang, Jie Bai, Zhi-Zhou Shi
miR-99a is down-regulated in esophageal squamous cell carcinoma (ESCC), however the role and underlying mechanism are still unknown. We aim to explore the role and mechanism of miR-99a down-regulation in ESCC. The expression of miR-99a in ESCC tissues and cell lines was detected by Human miRNA Microarrays and Real-time PCR. The effects of miR-99a on cell proliferation, migration and invasion were determined by Cell Counting Kit-8 (CCK-8) assay, transwell migration and invasion assay. Target gene of miR-99a were analyzed by target prediction software and validated by Real-time PCR and Western blotting assay...
July 31, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28798379/kleptoplast-photosynthesis-is-nutritionally-relevant-in-the-sea-slug-elysia-viridis
#4
Paulo Cartaxana, Erik Trampe, Michael Kühl, Sónia Cruz
Several sacoglossan sea slug species feed on macroalgae and incorporate chloroplasts into tubular cells of their digestive diverticula. We investigated the role of the "stolen" chloroplasts (kleptoplasts) in the nutrition of the sea slug Elysia viridis and assessed how their abundance, distribution and photosynthetic activity were affected by light and starvation. Elysia viridis individuals feeding on the macroalga Codium tomentosum were compared with starved specimens kept in dark and low light conditions...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790850/emodin-suppresses-proliferation-migration-and-invasion-in-ovarian-cancer-cells-by-down-regulating-ilk-in-vitro-and-in-vivo
#5
Jingjing Lu, Ying Xu, Zhe Zhao, Xiaoning Ke, Xuan Wei, Jia Kang, Xuan Zong, Hongluan Mao, Peishu Liu
OBJECTIVE: Although our previous studies have confirmed that 1, 3, 8-trihydroxy-6-methylant hraquinone (emodin) inhibits migration and invasion in epithelial ovarian cancer (EOC) cells, the underlying molecular mechanism remains unknown. Here, the aim was to investigate the effects of emodin on EOC cells and to study further the mechanism underlying this process, both in vitro and in vivo. MATERIALS AND METHODS: Cell proliferation was evaluated by the methylthiazolyl tetrazolium assay...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28774595/interleukin-36%C3%AE-induced-by-the-tlr3-slug-vdr-axis-promotes-wound-healing-via-reg3a
#6
Ziwei Jiang, Yuanqi Liu, Changwei Li, Leilei Chang, Wang Wang, Zhenhua Wang, Xiaoguang Gao, Bernhard Ryffel, Yelin Wu, Yuping Lai
Interleukin-36 (IL-36) family members are highly expressed in hyperproliferative keratinocytes and play an important role in the pathogenesis of skin diseases such as psoriasis. However, whether and how IL-36 cytokines are induced to promote wound healing remains unknown. Here we demonstrated that skin injury increased the expression of IL-36γ to promote wound healing. Mechanistically, the expression of IL-36γ was induced by RNAs from damaged cells via the activation of Toll-like receptor 3 (TLR3) and TIR-domain-containing adapter-inducing interferon-β (TRIF) followed by the induction of a zinc finger protein SLUG to abrogate the inhibitory effect of vitamin D receptor (VDR) on the promoter of IL-36γ gene...
July 31, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28771223/pigment-epithelium-derived-factor-promotes-tumor-metastasis-through-an-interaction-with-laminin-receptor-in-hepatocellular-carcinomas
#7
Jianjing Hou, Chao Ge, Meiling Cui, Tengfei Liu, Xiaoqin Liu, Hua Tian, Fangyu Zhao, Taoyang Chen, Ying Cui, Ming Yao, Jinjun Li, Hong Li
Pigment epithelium-derived factor (PEDF) has complex functions in tumor metastasis, but little is known about the roles of PEDF and its receptors in hepatocellular carcinoma (HCC). Here we found that high expression of PEDF is associated with shorter overall survival in HCC patients. Forced expression of PEDF enhanced HCC cell aggressive behavior in vitro and in vivo, whereas silencing PEDF expression reduced migration and invasion. Furthermore, PEDF expression led to changes in cell morphology and the expression of epithelial-mesenchymal transition (EMT)-related markers via ERK1/2 signaling pathway, including the upregulation of N-cadherin and slug, and the downregulation of E-cadherin in HCC cells...
August 3, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28768501/hybrid-clone-cells-derived-from-human-breast-epithelial-cells-and-human-breast-cancer-cells-exhibit-properties-of-cancer-stem-initiating-cells
#8
Daria Gauck, Silvia Keil, Bernd Niggemann, Kurt S Zänker, Thomas Dittmar
BACKGROUND: The biological phenomenon of cell fusion has been associated with cancer progression since it was determined that normal cell × tumor cell fusion-derived hybrid cells could exhibit novel properties, such as enhanced metastatogenic capacity or increased drug resistance, and even as a mechanism that could give rise to cancer stem/initiating cells (CS/ICs). CS/ICs have been proposed as cancer cells that exhibit stem cell properties, including the ability to (re)initiate tumor growth...
August 2, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28763860/-role-of-enolase-1-in-hepatocellular-carcinoma-and-possible-mechanism
#9
T T Yan, L N Ma, X Luo, Z H Lu, Q Liu, Y H Xu, X L Liu, X C Ding
Objective: To investigate the role of enolase 1 (ENO1) in hepatocellular carcinoma (HCC) and possible mechanism. Methods: Real-time PCR and Western blot were used to measure the expression of ENO1 in HCC tissue, adjacent tissue, hepatoma cells, and normal hepatocytes. The siRNA interference technique was used for ENO1 knockout in HepG2 cells, and then CCK-8, colony formation assay, and transwell assay were used to measure the proliferation, migration, and invasion abilities of HepG2 cells. Real-time PCR and Western blot were used to measure the expression of proteins and genes involved in the activation of the Notch signaling pathway...
June 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28762325/activation-of-vimentin-is-critical-to-promote-a-metastatic-potential-of-cholangiocarcinoma-cells
#10
Waraporn Saentaweesuk, Norie Araki, Kulthida Vaeteewoottacharn, Atit Silsirivanit, Wunchana Seubwai, Chutima Talabnin, Kanha Muisuk, Banchob Sripa, Sopit Wongkham, Seiji Okada, Chaisiri Wongkham
Cholangiocarcinoma (CCA) is a highly metastatic tumor, of which the majority of the patients have short survival due tono effective treatment. Hence, a better understanding regarding CCA metastasis may provide an opportunity to improve the strategies for treatment. A comparison study between the highly metastatic cells and their parental cells is an approach to uncover the molecular mechanisms underlying the metastatic process. In the present study, a lung metastatic CCA cell line, KKU-214L5 was established by the in vivo selection of the tail-vein injected mouse model...
July 25, 2017: Oncology Research
https://www.readbyqxmd.com/read/28761361/circ-104916-is-downregulated-in-gastric-cancer-and-suppresses-migration-and-invasion-of-gastric-cancer-cells
#11
Jin Li, Li Zhen, Yan Zhang, Liying Zhao, Hao Liu, Danxian Cai, Hao Chen, Jiang Yu, Xiaolong Qi, Guoxin Li
Circular RNAs are a large class of noncoding RNA that have shown huge capabilities as gene regulators. Recent evidence suggest that circular RNAs are associated with many diseases, especially cancer. However, little attention has been focused on the expression and function of circular RNA in gastric cancer (GC). In this study, we demonstrate that the expression of circ-104916 is downregulated in GC tissues and cell lines. A lower expression of circ-104916 appeared in deeper invasion depth, higher tumor stage and more frequent lymphatic metastasis patients...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28760625/methylglyoxal-upregulates-dictyostelium-discoideum-slug-migration-by-triggering-glutathione-reductase-and-methylglyoxal-reductase-activity
#12
Hyang-Mi Lee, Ji-Hui Seo, Min-Kyu Kwak, Sa-Ouk Kang
Glutathione (GSH)-deprived Dictyostelium discoideum accumulates methylglyoxal (MG) and reactive oxygen species (ROS) during vegetative growth. However, the reciprocal effects of the production and regulation of these metabolites on differentiation and cell motility are unclear. Based on the inhibitory effects of γ-glutamylcysteine synthetase (gcsA) disruption and GSH reductase (gsr) overexpression on aggregation and culmination, respectively, we overexpressed GSH-related genes encoding superoxide dismutase (Sod2), catalase (CatA), and Gcs, in D...
July 29, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28759535/relationship-between-physical-fitness-at-the-end-of-pre-season-and-the-in-season-game-performance-in-japanese-female-professional-baseball-players
#13
Yuya Watanabe, Yosuke Yamada, Tsukasa Yoshida, Tomoyuki Matsui, Kazuya Seo, Yoshikazu Azuma, Machiko Hiramoto, Yuichiro Miura, Hideaki Fukushima, Akito Shimazu, Toshiaki Eto, Homare Saotome, Noriyuki Kida, Toru Morihara
This study examined anthropometric and fitness profiles of Japanese female professional baseball players and investigated the relationship between players' physical fitness and in-season game performance. Fifty-seven players who were registered in the Japan Women's Baseball League (JWBL) participated. Height, weight, grip strength, back strength, knee-extension and -flexion strength, hamstring extensibility, vertical jump height, and horizontal jump distance were measured at pre-season (February and March) in 2013...
July 28, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28758930/treatment-of-human-placental-choriocarcinoma-cells-with-formaldehyde-and-benzene-induced-growth-and-epithelial-mesenchymal-transition-via-induction-of-an-antioxidant-effect
#14
Hae-Miru Lee, Soo-Min Kim, Kyung-Chul Choi
Cigarette smoke (CS) causes about 480,000 deaths each year worldwide, and it is well-known to have harmful effects on the human body, leading to heart disease, stroke, lung cancer, and cardiovascular problems. In this study, the effects of formaldehyde (FA) and benzene (Bz), the main components of CS, on cell proliferation and epithelial mesenchymal transition (EMT) of JEG-3 human choriocarcinoma cells were examined to confirm the relationship between CS components and placenta carcinoma. Upon MTT assay, FA (10(-8) M to 10(-5) M) and Bz (10(-11) M to 10(-8) M) increased JEG-3 cell proliferation...
July 29, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28757590/tanshinone-iia-inhibits-epithelial-mesenchymal-transition-in-bladder-cancer-cells-via-modulation-of-stat3-ccl2-signaling
#15
Sung-Ying Huang, Shu-Fang Chang, Kuan-Fu Liao, Sheng-Chun Chiu
Tanshinone IIA (Tan-IIA) is an extract from the widely used traditional Chinese medicine (TCM) Danshen (Salvia miltiorrhiza), and has been found to attenuate the proliferation of bladder cancer (BCa) cells (The IC50 were: 5637, 2.6 μg/mL; BFTC, 2 μg/mL; T24, 2.7 μg/mL, respectively.). However, the mechanism of the effect of Tan-IIA on migration inhibition of BCa cells remains unclear. This study investigates the anti-metastatic effect of Tan-IIA in human BCa cells and clarifies its molecular mechanism. Three human BCa cell lines, 5637, BFTC and T24, were used for subsequent experiments...
July 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28754964/enhancer-of-zeste-homolog-2-ezh2-induces-epithelial-mesenchymal-transition-in-endometriosis
#16
Qi Zhang, Peixin Dong, Xishi Liu, Noriaki Sakuragi, Sun-Wei Guo
EZH2, a subunit of the polycomb repressive complex 2 (PRC2) catalyzing trimethylation of histone H3 lysine 27 (H3K27), induces epithelial-mesenchymal transition (EMT) in cancers. However, whether EZH2 regulates EMT in endometriosis is unclear. Here, we show that EZH2 expression, along with its associated PRC2 proteins, is significantly elevated in ectopic and eutopic endometrium from women with endometriosis as compared with control endometrium. EZH2 knockdown or inhibition restored the epithelial phenotypes of endometriotic epithelial cells, concomitant with the upregulation of E-cadherin and downregulation of vimentin and transcription factors (Snail and Slug) as well as reduced cellular migratory and invasive propensity...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28753236/blood-spinal-cord-barrier-breakdown-and-pericyte-deficiency-in-peripheral-neuropathy
#17
Reine-Solange Sauer, Juliane Kirchner, Shaobing Yang, Liu Hu, Mathias Leinders, Claudia Sommer, Alexander Brack, Heike L Rittner
The blood-spinal cord barrier (BSCB) prevents leakage of molecules, such as pronociceptive mediators, into the spinal cord, but its role in the pathophysiology of neuropathic pain is not completely understood. Rats with chronic constriction injury (CCI) develop mechanical allodynia, thermal hypersensitivity, and reduced motor performance (Rota-Rod test) compared with sham-injured mice-similar to mice with spared nerve injury (SNI). The BSCB becomes permeable for small and large tracers 1 day after nerve ligation...
July 28, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28740192/preventive-effect-of-celecoxib-use-against-cancer-progression-and-occurrence-of-oral-squamous-cell-carcinoma
#18
Shang-Lun Chiang, Bharath Kumar Velmurugan, Chia-Min Chung, Shu-Hui Lin, Zhi-Hong Wang, Chun-Hung Hua, Ming-Hsui Tsai, Tzer-Min Kuo, Kun-Tu Yeh, Pei-Ying Chang, Yi-Hsin Yang, Ying-Chin Ko
Overexpression of cyclooxygenase-2 in oral cancer increases lymph node metastasis and is associated with a poor prognosis. The potential of celecoxib (CXB) use is reported in cancer treatment by inhibiting proliferation through apoptosis, but the effects on the epithelial-mesenchymal transition (EMT) and cancer cell mobility remain unclear. We performed a preclinical study and population-based study to evaluate CXB use in the prevention of oral cancer progression and occurrence. The in-vitro findings showed that CXB is involved in the inhibition of EMT and cell mobility through blocking transcription factors (Slug, Snail and ZEB1), cytoplasmic mediators (focal adhesion kinase (FAK), vimentin and β-catenin), cell adhesion molecules (cadherins and integrins), and surface receptors (AMFR and EGFR)...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28739734/nherf1-suppresses-lung-cancer-cell-migration-by-regulation-of-epithelial-mesenchymal-transition
#19
Fenglian Yang, Yanan Gu, Zehang Zhao, Jing Huang, Wen G Jiang, Shan Cheng
BACKGROUND/AIM: Na(+)/H(+) exchanger regulatory factor 1 (NHERF1) has been reported to interact with many cancer-related proteins and plays an important role in cancer progression. However, little is known about the biological functions of NHERF1 in lung cancer cells. The aim of the current study was to explore whether NHERF1 is involved in transforming growth factor (TGF)-β1-induced epithelial-mesenchymal transition (EMT) in non-small-cell lung cancer cells. MATERIALS AND METHODS: The expression of NHERF1 and EMT-associated markers including E-cadherin, N-cadherin, snail family transcriptional repressor 1 (SNAI1) and snail family transcriptional repressor 2 (SLUG) were analyzed by reverse transcription polymerase chain reaction (RT-PCR) and western blotting...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28736174/effects-of-cigarette-smoke-extracts-on-cell-cycle-cell-migration-and-endocrine-activity-in-human-placental-cells
#20
Cho-Won Kim, Hae-Miru Lee, Kyuhong Lee, Bumseok Kim, Moo-Yeol Lee, Kyung-Chul Choi
Maternal smoking during pregnancy is known to be related to adverse pregnancy results associated with trophoblast proliferation and cell cycle progression. Moreover, many previous studies have shown that cigarette smoke is correlated with human chorionic gonadotropin beta (hCG-β) subunit produced from syncytiotrophoblasts during pregnancy. Thus, we further investigated whether cigarette smoke extract (CSE) affects the cell proliferation, migration and endocrine hormone activity of JEG-3 human placental cancer cells...
July 20, 2017: Reproductive Toxicology
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