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y box binding protein

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https://www.readbyqxmd.com/read/28624808/yb-1-regulates-tumor-growth-by-promoting-macc1-c-met-pathway-in-human-lung-adenocarcinoma
#1
Tao Guo, Shilei Zhao, Peng Wang, Xiaoyuan Xue, Yan Zhang, Mengying Yang, Nan Li, Zhuoshi Li, Lingzhi Xu, Lei Jiang, Lei Zhao, Patrick C Ma, Rafael Rosell, Jinxiu Li, Chundong Gu
Aberrant overexpression of the transcription/translation factor Y-box-binding protein (YB-1) is associated with poor prognosis of lung adenocarcinoma, however the underlying mechanism by which YB-1 acts has not been fully elucidated. Here, we reported that inhibition of YB-1 diminished proliferation, migration and invasion of lung adenocarcinoma cells. Interestingly, we identified metastasis associated in colon cancer-1 (MACC1) as a target of YB-1. Depletion of YB-1 markedly decreased MACC1 promoter activity and suppressed the MACC1/c-Met signaling pathway in lung adenocarcinoma cells...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28614407/genome-wide-identification-and-characterization-of-micrornas-differentially-expressed-in-fibers-in-a-cotton-phytochrome-a1-rnai-line
#2
Qing Miao, Peng Deng, Sukumar Saha, Johnie N Jenkins, Chuan-Yu Hsu, Ibrokhim Y Abdurakhmonov, Zabardast T Buriev, Alan Pepper, Din-Pow Ma
Cotton fiber is an important commodity throughout the world. Fiber property determines fiber quality and commercial values. Previous studies showed that silencing phytochrome A1 gene (PHYA1) by RNA interference in Upland cotton (Gossypium hirsutum L. cv. Coker 312) had generated PHYA1 RNAi lines with simultaneous improvements in fiber quality (longer, stronger and finer fiber) and other key agronomic traits. Characterization of the altered molecular processes in these RNAi genotypes and its wild-type controls is a great interest to better understand the PHYA1 RNAi phenotypes...
2017: PloS One
https://www.readbyqxmd.com/read/28610763/inflammatory-cell-infiltration-and-resolution-of%C3%A2-kidney-inflammation-is-orchestrated-by-the-cold-shock-protein-y-box-binding-protein-1
#3
Anja Bernhardt, Alexander Fehr, Sabine Brandt, Saskia Jerchel, Tobias M Ballhause, Lars Philipsen, Saskia Stolze, Robert Geffers, Honglei Weng, Klaus-Dieter Fischer, Berend Isermann, Monika C Brunner-Weinzierl, Arvind Batra, Britta Siegmund, Cheng Zhu, Jonathan A Lindquist, Peter R Mertens
Tubular cells recruit monocytic cells in inflammatory tubulointerstitial kidney diseases. The cell-cell communication that establishes pro- or anti-inflammatory activities is mainly influenced by cytokines, reactive oxygen species, nitric oxide, and phagocytosis. Key proteins orchestrating these processes such as cold-shock proteins linked with chemoattraction and cell maturation have been identified. The prototypic member of the cold-shock protein family, Y-box binding protein (YB)-1, governs specific phenotypic alterations in monocytic cells and was explored in the present study...
June 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28594324/mecp2-regulates-tet1-catalyzed-demethylation-ctcf-binding-and-learning-dependent-alternative-splicing-of-the-bdnf-gene-in-turtle
#4
Zhaoqing Zheng, Ganesh Ambigapathy, Joyce Keifer
MECP2 mutations underlying Rett syndrome cause widespread misregulation of gene expression. Functions for MeCP2 other than transcriptional are not well understood. In an ex vivo brain preparation from the pond turtle Trachemys scripta elegans, an intraexonic splicing event in the brain-derived neurotrophic factor (BDNF) gene generates a truncated mRNA transcript in naïve brain that is suppressed upon classical conditioning. MeCP2 and its partners, splicing factor Y-box binding protein 1 (YB-1) and methylcytosine dioxygenase 1 (Tet1), bind to BDNF chromatin in naïve but dissociate during conditioning; the dissociation correlating with decreased DNA methylation...
June 8, 2017: ELife
https://www.readbyqxmd.com/read/28565767/hair-follicle-derived-mesenchymal-cells-support-undifferentiated-growth-of-embryonic-stem-cells
#5
Vanessa Carvalho Coelho de Oliveira, Danúbia Silva Dos Santos, Leandro Vairo, Tais Hanae Kasai Brunswick, Luiz Alberto Soares Pimentel, Adriana Bastos Carvalho, Antonio Carlos Campos de Carvalho, Regina Coeli Dos Santos Goldenberg
The aim of the present study was to investigate whether feeder layers composed of human hair follicle-derived mesenchymal stem cells (hHFDCs) are able to support human embryonic stem cells (hESCs). hHFDCs and mouse embryonic fibroblasts (MEFs) were isolated and cultured in Dulbecco's modified Eagle's medium (DMEM)/F-12 and low-glucose DMEM, respectively. hHFDCs were passaged three times and subsequently characterized. hHFDCs and MEFs were mitotically inactivated with mitomycin C for 3 h prior to co-culture with H9-hESCs...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28558013/downregulation-of-sirt1-signaling-underlies-hepatic-autophagy-impairment-in-glycogen-storage-disease-type-ia
#6
Jun-Ho Cho, Goo-Young Kim, Chi-Jiunn Pan, Javier Anduaga, Eui-Ju Choi, Brian C Mansfield, Janice Y Chou
A deficiency in glucose-6-phosphatase-α (G6Pase-α) in glycogen storage disease type Ia (GSD-Ia) leads to impaired glucose homeostasis and metabolic manifestations including hepatomegaly caused by increased glycogen and neutral fat accumulation. A recent report showed that G6Pase-α deficiency causes impairment in autophagy, a recycling process important for cellular metabolism. However, the molecular mechanism underlying defective autophagy is unclear. Here we show that in mice, liver-specific knockout of G6Pase-α (L-G6pc-/-) leads to downregulation of sirtuin 1 (SIRT1) signaling that activates autophagy via deacetylation of autophagy-related (ATG) proteins and forkhead box O (FoxO) family of transcriptional factors which transactivate autophagy genes...
May 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28545230/nanog-plays-a-hierarchical-role-in-the-transcription-network-regulating-the-pluripotency-and-plasticity-of-adipose-tissue-derived-stem-cells
#7
Maria Pitrone, Giuseppe Pizzolanti, Laura Tomasello, Antonina Coppola, Lorenzo Morini, Gianni Pantuso, Romina Ficarella, Valentina Guarnotta, Sebastio Perrini, Francesco Giorgino, Carla Giordano
The stromal vascular cell fraction (SVF) of visceral and subcutaneous adipose tissue (VAT and SAT) has increasingly come into focus in stem cell research, since these compartments represent a rich source of multipotent adipose-derived stem cells (ASCs). ASCs exhibit a self-renewal potential and differentiation capacity. Our aim was to study the different expression of the embryonic stem cell markers NANOG (homeobox protein NANOG), SOX2 (SRY (sex determining region Y)-box 2) and OCT4 (octamer-binding transcription factor 4) and to evaluate if there exists a hierarchal role in this network in ASCs derived from both SAT and VAT...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28515914/analysis-of-the-function-of-microrna-375-in-humans-using-bioinformatics
#8
Xiaohua Chen, Baoxia Li, Rongcheng Luo, Sina Cai, Cao Zhang, Xiaolong Cao
MicroRNA-375 (miR-375) is expressed at low levels in many types of solid tumor, particularly in gastrointestinal tumors. It is considered to be important in the development of cancer and certain diseases. Thus, more detailed knowledge is required on the particular functions of miR-375. miRs function by regulating target genes. Therefore, in the current study, miRWalk (which includes the data from 10 prediction software programs) was used to predict the target genes of miR-375. The genes, which were co-predicted using five different software programs were further analyzed using Database for Annotation, Visualization and Integrated Discovery online software [including gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis]...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28515422/up-regulation-and-nuclear-translocation-of-y-box-binding-protein-1-yb-1-is-linked-to-poor-prognosis-in-erg-negative-prostate-cancer
#9
Asmus Heumann, Özge Kaya, Christoph Burdelski, Claudia Hube-Magg, Martina Kluth, Dagmar S Lang, Ronald Simon, Burkhard Beyer, Imke Thederan, Guido Sauter, Jakob R Izbicki, Andreas M Luebke, Andrea Hinsch, Frank Jacobsen, Corinna Wittmer, Franziska Büscheck, Doris Höflmayer, Sarah Minner, Maria Christina Tsourlakis, Thorsten Schlomm, Waldemar Wilczak
Y-box binding protein 1 (YB-1) is an RNA and DNA binding factor with potential prognostic cancer. To evaluate the clinical impact of YB-1, a tissue microarray with 11,152 prostate cancers was analysed by immunohistochemistry. Cytoplasmic and nuclear staining was separately analysed. Cytoplasmic YB-1 was absent or weak in normal epithelium but seen in 86,3% of carcinomas. Cytoplasmic staining was weak, moderate, and strong in 29.6%, 43.7% and 13.0% of tumours and was accompanied by nuclear YB-1 staining in 32...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28454322/accumulation-of-low-dose-bix01294-promotes-metastatic-potential-of-u251-glioblastoma-cells
#10
Min Young Kim, Shin-Ji Park, Jae Woong Shim, Yu Jin Song, Kwangmo Yang, Seong-Joon Park, Kyu Heo
BIX01294 (Bix) is known to be a euchromatic histone-lysine N-methyltransferase 2 inhibitor and treatment with Bix suppresses cancer cell survival and proliferation. In the present study, it was observed that sequential treatment with low-dose Bix notably increases glioblastoma cell migration and metastasis. It was demonstrated that U251 cells sequentially treated with low-dose Bix exhibited induced characteristic changes in critical epithelial-mesenchymal transition (EMT) markers, including E-cadherin, N-cadherin, β-catenin and zinc finger protein SNAI2...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28441755/role-of-rheb-in-regulating-differentiation-fate-of-mesenchymal-stem-cells-for-cartilage-and-bone-regeneration
#11
Sajjad Ashraf, In-Bo Han, Hansoo Park, Soo-Hong Lee
Advances in mesenchymal stem cells (MSCs) and cell replacement therapies are promising approaches to treat cartilage and bone defects since substantial differentiation capacities of MSCs match the demands of tissue regeneration. Our understanding of the dynamic process requiring indispensable differentiation of MSCs remains limited. Herein, we describe the role of RHEB (Ras homolog enriched in brain) regulating gene signature for differentiation of human adipose derived mesenchymal stem cells (ASCs) into chondrogenic, osteogenic, and adipogenic lineages...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28440450/comprehensive-analysis-of-a-microrna-expression-profile-in-pediatric-medulloblastoma
#12
Junqiang Dai, Qiao Li, Zhitong Bing, Yinian Zhang, Liang Niu, Hang Yin, Guoqiang Yuan, Yawen Pan
Medulloblastoma is the most common malignant brain tumor of the central nervous system among children. Medulloblastoma is an embryonal tumor, of which little is known about the pathogenesis. Several efforts have been made to understand the molecular aspects of its tumorigenic pathways; however, these are poorly understood. microRNA (miRNA), a type of non‑coding short RNA, has been proven to be associated with a number of physiological processes and pathological processes of serious diseases, including brain tumors...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28419631/tgpl2-a-patatin-like-phospholipase-domain-containing-protein-is-involved-in-the-maintenance-of-apicoplast-lipids-homeostasis-in-toxoplasma
#13
Maude F Lévêque, Laurence Berry, Yoshiki Yamaryo-Botté, Hoa Mai Nguyen, Marine Galera, Cyrille Y Botté, Sébastien Besteiro
Patatin-like phospholipases are involved in numerous cellular functions, including lipid metabolism and membranes remodeling. The patatin-like catalytic domain, whose phospholipase activity relies on a serine-aspartate dyad and an anion binding box, is widely spread among prokaryotes and eukaryotes. We describe TgPL2, a novel patatin-like phospholipase domain-containing protein from the parasitic protist Toxoplasma gondii. TgPL2 is a large protein, in which the key motifs for enzymatic activity are conserved in the patatin-like domain...
April 17, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28415756/human-melanoma-cells-resistant-to-mapk-inhibitors-can-be-effectively-targeted-by-inhibition-of-the-p90-ribosomal-s6-kinase
#14
Corinna Kosnopfel, Tobias Sinnberg, Birgit Sauer, Heike Niessner, Anja Schmitt, Elena Makino, Andrea Forschner, Stephan Hailfinger, Claus Garbe, Birgit Schittek
The clinical availability of small molecule inhibitors specifically targeting mutated BRAF marked a significant breakthrough in melanoma therapy. Despite a dramatic anti-tumour activity and improved patient survival, rapidly emerging resistance, however, greatly limits the clinical benefit. The majority of the already described resistance mechanisms involve a reactivation of the MAPK signalling pathway. The p90 ribosomal S6 kinase (RSK), a downstream effector of the MAPK signalling cascade, has been reported to enhance survival of melanoma cells in response to chemotherapy...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407375/h19-promotes-cholestatic-liver-fibrosis-by-preventing-zeb1-mediated-inhibition-of-epcam
#15
Yongfeng Song, Chune Liu, Xia Liu, Jocelyn Trottier, Michele Beaudoin, Li Zhang, Chad Pope, Guangyong Peng, Olivier Barbier, Xiaobo Zhong, Linheng Li, Li Wang
Based on our recent finding that disruption of bile acid (BA) homeostasis in mice results in the induction of hepatic lncRNA H19 expression, we sought to elucidate the role of H19 in cholestatic liver fibrosis. Hepatic overexpression of H19RNA augmented bile duct ligation (BDL)-induced liver fibrosis, which was accompanied by the elevation of serum ALT, AST, bilirubin, and BA levels. Multiple genes related to liver fibrosis, inflammation, and biliary hyperplasia were increased in H19-BDL vs Null-BDL mice, whereas genes in BA synthesis were decreased...
April 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28400280/transcriptional-activation-of-nanog-by-ybx1-promotes-lung-cancer-stem-like-properties-and-metastasis
#16
Tao Guo, Jing Kong, Yang Liu, Zhuoshi Li, Jianglong Xia, Yan Zhang, Shilei Zhao, Fengzhou Li, Jinxiu Li, Chundong Gu
Aberrant overexpression of the transcription/translation factor Y-box-binding protein-1 (YBX1) is associated with non-small cell lung cancer (NSCLC) aggressiveness. Cancer stem cells (CSCs) contribute to the tumorigenesis and metastasis of NSCLC. Hitherto, the mechanism by which YBX1 regulates CSCs and metastasis in NSCLC remains unclear. Here, we demonstrated that YBX1 levels were elevated in NSCLC tissues and cell lines. Enforced expression of YBX1 promoted NSCLC cells invasion, sphere forming ability and ALDH1(+) population...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28397066/microrna-9-promotes-the-proliferation-migration-and-invasion-of-breast-cancer-cells-via-down-regulating-foxo1
#17
D-Z Liu, B Chang, X-D Li, Q-H Zhang, Y-H Zou
PURPOSE: The objective of the study was to investigate the role of microRNA-9 (miR-9) targeting forkhead box O1 (FOXO1) in the proliferation, migration, and invasion of breast cancer cells. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to determine the expressions of miR-9 and FOXO1 mRNA in breast cancer tissues, normal breast tissues, breast cancer cell lines, and normal breast epithelial cells. After the up-regulation of miR-9 expression, qRT-PCR and Western blotting were used to determine the expression of FOXO1...
April 10, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28389215/clock-gene-dysregulation-induced-by-chronic-er-stress-disrupts-%C3%AE-cell-function
#18
Yasuharu Ohta, Akihiko Taguchi, Takuro Matsumura, Hiroko Nakabayashi, Masaru Akiyama, Kaoru Yamamoto, Ruriko Fujimoto, Risa Suetomi, Akie Yanai, Koh Shinoda, Yukio Tanizawa
In Wfs1(-/-)A(y)/a islets, in association with endoplasmic reticulum (ER) stress, D-site-binding protein (Dbp) expression decreased and Nuclear Factor IL-3 (Nfil3)/E4 Promoter-binding protein 4 (E4bp4) expression increased, leading to reduced DBP transcriptional activity. Similar alterations were observed with chemically-induced ER stress. Transgenic mice expressing E4BP4 under the control of the mouse insulin I gene promoter (MIP), in which E4BP4 in β-cells is expected to compete with DBP for D-box, displayed remarkable glucose intolerance with severely impaired insulin secretion...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28382490/silencing-of-y-box-binding-protein-1-by-rna-interference-inhibits-proliferation-invasion-and-metastasis-and-enhances-sensitivity-to-cisplatin-through-nf-%C3%AE%C2%BAb-signaling-pathway-in-human-neuroblastoma-sh-sy5y-cells
#19
Hong Wang, Ruowen Sun, Zuofei Chi, Shuang Li, Liangchun Hao
Y-box binding protein-1 (YB-1), a member of Y-box protein family binding DNA and RNA, has been proposed as a novel marker in multiple malignant tumors and found to be associated with tumor malignancy. Neuroblastoma is an embryonal tumor arising from neuroblast cells of the autonomic nervous system, which is the most common cancer diagnosed in infants. It has been reported that YB-1 is highly expressing in various human tumors including nasopharynx, thyroid, lung, breast, colon, ovary, and prostate cancers. This study aimed to investigate the functional role of YB-1 in neuroblastoma by silencing YB-1 using RNA interference (shRNA) in neuroblastoma SH-SY5Y cells...
April 5, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28373420/y-box-binding-protein-1-is-involved-in-regulating-the-g2-m-phase-of-the-cell-cycle
#20
Yojiro Kotake, Nagisa Arikawa, Keiichiro Tahara, Hiroaki Maru, Madoka Naemura
BACKGROUND/AIM: The transcription factor Y-box-binding protein 1 (YB1) is overexpressed in many types of human cancers. YB1 regulates the G1 phase of the cell cycle by controlling transcription of G1 regulators. Here, we report that YB1 is also involved in regulating G2/M phase. MATERIALS AND METHODS: YB1-depleted TKO cells were subjected to quantitative reverse transcription-polymerase chain reaction and cell-cycle analysis. RNA immunoprecipitation (RIP)-chip assay was performed using anti-YB1 antibodies...
April 2017: Anticancer Research
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