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https://www.readbyqxmd.com/read/28442011/-ck2%C3%AE-regulates-the-metastases-and-migration-of-lung-adenocarcinoma-%C3%A2-a549-cell-line-through-pi3k-akt-gsk-3%C3%AE-signal-pathway
#1
Aibing Wu, Mingchun Li, Zongjiong Mai, Shujun Li, Zhixiong Yang
BACKGROUND: Lung cancer is the leading cancer-related death worldwide. Patients with lung cancer mainly died of tumor metastasis and invasion. Protein kinase CK2 is an ubiquitous serine/threonine protein kinase and is frequently upregulated in various human tumors. This study aims to explore the effect and molecular mechanism of the invasion and migration of lung adenocarcinoma A549 cells after knock-down of CK2α expression. METHODS: The pSilencerTM 4.1-siCK2α-eGFP of lentiviral-mediated shRNA was constructed...
April 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28441437/quantitative-modeling-of-responses-to-chronic-ionizing-radiation-exposure-using-targeted-and-non-targeted-effects
#2
Igor Shuryak
The biological effects of chronic ionizing radiation exposure can be difficult to study, but important to understand in order to protect the health of occupationally-exposed persons and victims of radiological accidents or malicious events. They include targeted effects (TE) caused by ionizations within/close to nuclear DNA, and non-targeted effects (NTE) caused by damage to other cell structures and/or activation of stress-signaling pathways in distant cells. Data on radiation damage in animal populations exposed over multiple generations to wide ranges of dose rates after the Chernobyl nuclear-power-plant accident are very useful for enhancing our understanding of these processes...
2017: PloS One
https://www.readbyqxmd.com/read/28440499/effects-of-tanshinone-iia-on-the-regulation-of-renal-proximal-tubular-fibrosis
#3
Luoyuan Cao, Baoying Huang, Xianguo Fu, Jing Yang, Yinghua Lin, Feng Lin
The development of diabetes mellitus, along with its complications, is a chronic inflammatory response process. Chronic kidney diseases are characterized by renal fibrosis, and fibrosis is an important pathway for end‑stage renal failure. According to previous studies, high glucose (HG) has been demonstrated to be the most important fibrogenesis‑inducing agent. Tanshinone IIA is one of the main components isolated from Danshen (Salvia miltiorrhiza). Although tanshinone IIA has been widely used for the treatment of cardiovascular diseases, the possible role of tanshinone IIA in fibrosis regulation remains to be elucidated and requires investigation...
April 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440207/epithelial-mesenchymal-transition-in-cancer-progression-preventive-phytochemicals
#4
Soorya Parathodi Illam, Arunaksharan Narayanankutty, Shaji Edappilly Mathew, Remya Valsalakumari, Rosemol M Jacob, Achuthan Chathrattil Raghavamenon
BACKGROUND: Epithelial-Mesenchymal Transition (EMT) is the conversion of epithelial cells into mesenchymal phenotype generally observed during embryogenesis and wound healing as well as in malignant transformation. Several signaling pathways and transcription factors associated with EMT have been explored. Dietary phytochemicals are multi-targeted agents that interfere with these pathways, assume preventive potential against pathologic EMT. OBJECTIVE: Present review aims to provide a detailed description on the nature, characteristics of EMT in physiological and pathophysiological conditions and the scope of phytochemicals in its prevention...
April 24, 2017: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/28438916/nearly-400-million-people-are-at-higher-risk-of-schistosomiasis-because-dams-block-the-migration-of-snail-eating-river-prawns
#5
Susanne H Sokolow, Isabel J Jones, Merlijn Jocque, Diana La, Olivia Cords, Anika Knight, Andrea Lund, Chelsea L Wood, Kevin D Lafferty, Christopher M Hoover, Phillip A Collender, Justin V Remais, David Lopez-Carr, Jonathan Fisk, Armand M Kuris, Giulio A De Leo
Dams have long been associated with elevated burdens of human schistosomiasis, but how dams increase disease is not always clear, in part because dams have many ecological and socio-economic effects. A recent hypothesis argues that dams block reproduction of the migratory river prawns that eat the snail hosts of schistosomiasis. In the Senegal River Basin, there is evidence that prawn populations declined and schistosomiasis increased after completion of the Diama Dam. Restoring prawns to a water-access site upstream of the dam reduced snail density and reinfection rates in people...
June 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28438518/testicular-spermatogenesis-and-sperm-morphology-in-martarega-bentoi-heteroptera-notonectidae
#6
Ademária M Novais, Glenda Dias, José Lino-Neto
The testicular, spermatogenesis and sperm morphology of the backswimmer Martarega bentoi was described using light and transmission electron microscopy. In this species, a pair of testes, two deferent ducts, two different pairs of accessory glands, and an ejaculatory duct form the male reproductive system. Each testis consists of two testicular follicles, which are arranged side by side in snail shape. The follicles are filled with cysts at different stages of spermatogenesis, but in the same cyst the germ cells (up to 64) are in the same stage...
April 21, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28438134/poly-i-c-induces-collective-migration-of-hacat-keratinocytes-via-il-8
#7
Kazuhide Takada, Shihoko Komine-Aizawa, Naoko Hirohata, Quang Duy Trinh, Atsuyoshi Nishina, Hirokazu Kimura, Satoshi Hayakawa
BACKGROUND: Delayed wound healing reduces the quality of life (QOL) of patients. Thus, understanding the mechanism of wound healing is indispensable for better management. However, the role of innate immunity in wound healing is thus far unknown. Recently the involvement of TLR3 in wound healing has been evaluated. The systemic administration of polyriboinosinic-polyribocytidylic acid (poly I:C ; a substitute for viral dsRNA and a ligand of toll-like receptor 3), enhances wound healing in vivo...
April 24, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28438065/reduced-expression-of-eukaryotic-translation-initiation-factor-3-subunit-e-and-its-possible-involvement-in-the-epithelial-mesenchymal-transition-in-endometriosis
#8
Xianjun Cai, Minhong Shen, Xishi Liu, Sun-Wei Guo
Epithelial-mesenchymal transition (EMT) is now well documented to be involved in the development of endometriosis through the promotion of invasion and fibrogenesis. To date, several factors have been reported to be involved in EMT in endometriosis. The eukaryotic translation initiation factor 3 subunit e (eIF3e) protein is a component of the multisubunit eIF3 complex essential for cap-dependent translation initiation. The aim of this study was to investigate whether eIF3e is involved in EMT in endometriosis...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28437577/high-gene-flow-despite-opposite-chirality-in-hybrid-zones-between-enantiomorphic-door-snails
#9
Eva L Koch, Marco T Neiber, Frank Walther, Bernhard Hausdorf
We studied differentiation and gene flow patterns between enantiomorphic door-snail species in two hybrid zones in the Bucegi Mountains (Romania) to investigate the effects of intrinsic barriers (complications in copulation) and extrinsic selection by environmental factors. A mitochondrial gene tree confirmed the historical separation of the examined populations into the dextral Alopia livida and the sinistral Alopia straminicollis in accordance with the morphological classification, but also indicated gene flow between the species...
April 24, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28435292/reg3a-promotes-the-proliferation-migration-and-invasion-of-gastric-cancer-cells
#10
Zhou-Feng Chen, Zhi-Ming Huang, Hai-Bo Xue, Xiu-Qing Lin, Ren-Ping Chen, Meng-Jun Chen, Rui-Fang Jin
The mechanism underlying the metastasis of gastric cancer (GC) cells remains elusive. REG3A is considered an oncogene in various cancers, but in GC its role is unclear. Here, we report that the expression of REG3A was significantly increased in the tumor tissues of patients with GC compared with the matched normal tissues. Knockdown of REG3A induced by specific small interfering RNA (siRNA) significantly repressed the proliferation of GC cells for 24 h or 48 h. Moreover, knockdown of REG3A significantly suppressed the migration, invasion, and adhesion of GC cells in vitro...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28434000/apolipoprotein-a1-inhibits-the-tgf-%C3%AE-1-induced-endothelial-to-mesenchymal-transition-of-human-coronary-artery-endothelial-cells
#11
Juling Feng, Jingjing Zhang, Ampadu O Jackson, Xiao Zhu, Hainan Chen, Wen Chen, Qingjun Gui, Kai Yin
OBJECTIVE: Transforming growth factor β1 (TGF-β1) is the major cytokine for stimulating endothelial cells (ECs) to transdifferentiate to mesenchymal cells (MCs) in the process known as endothelial-to-mesenchymal transition (EndMT). Recently, TGF-β1-induced EndMT has been implicated in the pathogenesis of atherosclerosis (AS). It has been identified that apolipoprotein A1 (ApoA-I) obstructs TGF-β1-induced endothelial dysfunction, providing a protective effect for ECs and also anti-AS activity...
April 22, 2017: Cardiology
https://www.readbyqxmd.com/read/28432972/assessment-of-the-bioavailability-and-depuration-of-uranium-cesium-and-thorium-in-snails-cantareus-aspersus-using-kinetics-models
#12
B Pauget, A Villeneuve, P O Redon, A Cuvier, A de Vaufleury
Uranium ore waste has led to soil contamination that may affect both environmental and soil health. To analyze the risk of metal transfer, metal bioavailability must be estimated by measuring biological parameters. Kinetic studies allow taking into account the dynamic mechanisms of bioavailability, as well as the steady state concentration in organisms necessary to take into account for relevant risk assessment. In this way, this work aims to model the snail accumulation and excretion kinetics of uranium (U), cesium (Cs) and thorium (Th)...
April 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28431931/peroxiredoxin-5-promotes-the-epithelial-mesenchymal-transition-in-colon-cancer
#13
Hye-Mi Ahn, Jin-Woo Yoo, Seunghoon Lee, Hong Jun Lee, Hyun-Shik Lee, Dong-Seok Lee
Globally, colorectal cancer (CRC) is common cause of cancer-related deaths. The high mortality rate of patients with colon cancer is due to cancer cell invasion and metastasis. Initiation of the epithelial-to-mesenchymal transition (EMT) is essential for the tumorigenesis. Peroxiredoinxs (PRX1-6) have been reported to be overexpressed in various tumor tissues, and involved to be responsible for tumor progression. However, the exact role of PRX5 in colon cancer remains to be investigated enhancing proliferation and promoting EMT properties...
April 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28431762/effects-of-a-common-insecticide-on-wetland-communities-with-varying-quality-of-leaf-litter-inputs
#14
A B Stoler, B M Mattes, W D Hintz, D K Jones, L Lind, M S Schuler, R A Relyea
Chemical contamination of aquatic systems often co-occurs with dramatic changes in surrounding terrestrial vegetation. Plant leaf litter serves as a crucial resource input to many freshwater systems, and changes in litter species composition can alter the attributes of freshwater communities. However, little is known how variation in litter inputs interacts with chemical contaminants. We investigated the ecological effects resulting from changes in tree leaf litter inputs to freshwater communities, and how those changes might interact with the timing of insecticide contamination...
April 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28431572/hepatitis-c-virus-ns4b-protein-induces-epithelial-mesenchymal-transition-by-upregulation-of-snail
#15
Bicheng Hu, Shenggao Xie, Yuqian Hu, Wen Chen, Xiaofan Chen, Yi Zheng, Xinxing Wu
BACKGROUND: Chronic hepatitis C virus (HCV) infection is an important cause of hepatocellular carcinoma (HCC). Epithelial to mesenchymal transition (EMT) is a key process associated with tumor metastasis and poor prognosis. HCV infection, HCV core and NS5A protein could induce EMT process, but the role of NS4B on EMT remains poorly understood. METHODS: We overexpressed HCV NS4B protein in HepG2 cells or Huh7.5.1 cells infected by HCVcc, the E-cadherin expression, N-cadherin expression and the EMT-associated transcriptional factor Snail were determined...
April 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28429458/genomic-evidence-for-population-specific-responses-to-coevolving-parasites-in-a-new-zealand-freshwater-snail
#16
Laura A Bankers, Peter Fields, Kyle E McElroy, Jeffrey L Boore, John M Logsdon, Maurine Neiman
Reciprocal coevolving interactions between hosts and parasites are a primary source of strong selection that can promote rapid and often population- or genotype-specific evolutionary change. These host-parasite interactions are also a major source of disease. Despite their importance, very little is known about the genomic basis of coevolving host-parasite interactions in natural populations, especially in animals. Here, we use gene expression and sequence evolution approaches to take critical steps towards characterizing the genomic basis of interactions between the freshwater snail Potamopyrgus antipodarum and its coevolving sterilizing trematode parasite, Microphallus sp...
April 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28424413/the-snail-mir-128-axis-regulated-growth-invasion-metastasis-and-epithelial-to-mesenchymal-transition-of-gastric-cancer
#17
Wei-Wei Yu, Hong Jiang, Cun-Tai Zhang, Yang Peng
miR-128 is expressed in various tumors, but its expression and function in gastric cancer have not been defined. Thus, the goal of this study was to characterize miR-128 in gastric cancer. We found first that miR-128 is down-regulated in gastric cancer cell lines and tissues, and this dysregulation is correlated with DNA methylation and the transcription factor SNAIL. Using prediction tools, western blotting, and luciferase reporter assays, we found that Bmi-1 was the direct target of miR-128. Additionally, overexpression of miR-128 inhibited gastric cancer cell migration, invasion, and proliferation by targeting Bmi-1 in vitro and in vivo...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423737/rmp-promotes-epithelial-mesenchymal-transition-through-nf-%C3%AE%C2%BAb-csn2-snail-pathway-in-hepatocellular-carcinoma
#18
Wei Zhou, Qi Wang, Yi Xu, Jingting Jiang, Jingchun Guo, Huijun Yu, Wenxiang Wei
Epithelial-mesenchymal transition (EMT) is a significant risk factor for metastasis in hepatocellular carcinoma (HCC) patients and with poor prognosis. In this study, we demonstrate the key role of RPB5-mediating protein (RMP) in EMT of HCC cells and the mechanism by which RMP promote EMT. RMP increases migration, invasion, and the progress of EMT of HCC cells, which facilitates the accumulation of Snail, a transcriptional repressor involved in EMT initiation. NF-κB is activated by RMP, which directly promotes the expression of COP9 signalosome 2 (CSN2) to repress the degradation of Snail...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423510/genistein-inhibits-the-growth-and-regulates-the-migration-and-invasion-abilities-of-melanoma-cells-via-the-fak-paxillin-and-mapk-pathways
#19
Shuna Cui, Juan Wang, Qingqing Wu, Jing Qian, Changshui Yang, Ping Bo
Genistein is one of the main components of soy-based foods, which are widely known for their many benefits, including anti-cancer, anti-inflammatory, and antioxidant effects. In this study, we investigated the anti-metastasis effects of genistein on B16F10 melanoma cells. Our results showed that genistein strongly inhibited B16F10 cell proliferation and induced apoptosis in time- and concentration-dependent manners. Genistein altered the morphology of B16F10 cells to an elongated shape with slim pseudopodia-like protrusions...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423359/epithelial-mesenchymal-transition-induced-by-gro-%C3%AE-cxcr2-promotes-bladder-cancer-recurrence-after-intravesical-chemotherapy
#20
Lu Chen, Xiu-Wu Pan, Hai Huang, Yi Gao, Qi-Wei Yang, Lin-Hui Wang, Xin-Gang Cui, Dan-Feng Xu
Non-muscle invasive bladder cancers (NMIBC) are typically treated by transurethral resection with intravesical chemotherapy. However, the post-therapeutic incidence of tumor recurrence and progression to muscle invasive disease is high, and the underlying mechanism(s) remains unknown. In this study, we observed that recurrent bladder cancer cells exhibit a mesenchymal phenotype, which is initiated by the autocrine GRO-α signaling. Mechanically, the chemotherapeutic drug epidoxorubicin induces GRO-α expression in primary bladder cancer cells at G1/S phase via p38-dependent activation of NF-κB...
April 3, 2017: Oncotarget
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