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Wnt beta catenin

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https://www.readbyqxmd.com/read/28427939/nrage-induces-%C3%AE-catenin-arm-o-glcnacylation-and-negatively-regulates-wnt-signaling
#1
Yuxin Chen, Lei Jin, Bin Xue, Dong Jin, Fenyong Sun, Chuanjun Wen
The Wnt pathway is crucial for animal development, as well as tumor formation. Understanding the regulation of Wnt signaling will help to elucidate the mechanism of the cell cycle, cell differentiation and tumorigenesis. It is generally accepted that in response to Wnt signals, β-catenin accumulates in the cytoplasm and is imported into the nucleus where it recruits LEF/TCF transcription factors to activate the expression of target genes. In this study, we report that human NRAGE, a neurotrophin receptor p75 (p75NTR) binding protein, markedly suppresses the expression of genes activated by the Wnt pathway...
April 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28405929/thermodynamics-in-cancers-opposing-interactions-between-ppar-gamma-and-the-canonical-wnt-beta-catenin-pathway
#2
REVIEW
Yves Lecarpentier, Victor Claes, Alexandre Vallée, Jean-Louis Hébert
Cancer cells are the site of numerous metabolic and thermodynamic abnormalities. We focus this review on the interactions between the canonical WNT/beta-catenin pathway and peroxisome proliferator-activated receptor gamma (PPAR gamma) in cancers and their implications from an energetic and metabolic point of view. In numerous tissues, PPAR gamma activation induces inhibition of beta-catenin pathway, while the activation of the canonical WNT/beta-catenin pathway inactivates PPAR gamma. In most cancers but not all, PPAR gamma is downregulated while the WNT/beta-catenin pathway is upregulated...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28392344/after-skin-wounding-noncoding-dsrna-coordinates-prostaglandins-and-wnts-to-promote-regeneration
#3
Amadeus S Zhu, Ang Li, Tabetha S Ratliff, Martha Melsom, Luis A Garza
In a rare example akin to organogenesis in adult mammals, large wounds in mice lead to de novo morphogenesis of hair follicles. It is still not fully clear what controls this process, known as Wound Induced Hair Neogenesis (WIHN). In other tissues, prostaglandin E2 (PGE2) is an important effector of regeneration and has been shown to stimulate the Wnt/beta-catenin pathway, which in turn is known to control WIHN. Previously, our group has demonstrated that noncoding dsRNA released during wounding is both necessary and sufficient to stimulate WIHN through TLR3...
April 6, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28387908/cdh17-is-a-downstream-effector-of-hoxa13-in-modulating-the-wnt-%C3%AE-catenin-signaling-pathway-in-gastric-cancer
#4
L-P Qu, Y-M Zhong, Z Zheng, R-X Zhao
OBJECTIVE: In this study, we investigated the mechanism underlying co-upregulation of HOXA13 and CDH17 in gastric cancer, the signaling pathway in which HOXA13 and CDH17 involve in and their functional role in gastric cancer cells. MATERIALS AND METHODS: Relevant microarrays investigated the dysregulated genes in gastric cancer tissues were searched in ArrayExpress. The co-expression of HOXA13 and CDH17 was analyzed in the gastric cancer patient cohort in TCGA database using cBioportal and UCSC Xena...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28382841/hepatocellular-carcinoma-in-fanconi-bickel-syndrome
#5
Jennifer Pogoriler, Allison F O'Neill, Stephan D Voss, Robert C Shamberger, Antonio R Perez-Atayde
Fanconi-Bickel syndrome is a rare autosomal recessive disorder due to mutations in the facilitative glucose transporter 2 ( GLUT2 or SLC2A2) gene resulting in excessive glycogen storage predominantly in the liver and kidney. Previous case reports of this condition have described liver biopsies with glycogen storage and variable steatosis and/or fibrosis. Unlike in other types of glycogen storage disease, hepatocellular adenomas and carcinomas have not been described to date in this syndrome. A 6-year-old boy with consanguineous parents had short stature, poorly controlled rickets, hepatosplenomegaly, and renal tubular dysfunction clinically consistent with Fanconi-Bickel Syndrome...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28369070/probing-the-canonicity-of-the-wnt-wingless-signaling-pathway
#6
Alexandra Franz, Daria Shlyueva, Erich Brunner, Alexander Stark, Konrad Basler
The hallmark of canonical Wnt signaling is the transcriptional induction of Wnt target genes by the beta-catenin/TCF complex. Several studies have proposed alternative interaction partners for beta-catenin or TCF, but the relevance of potential bifurcations in the distal Wnt pathway remains unclear. Here we study on a genome-wide scale the requirement for Armadillo (Arm, Drosophila beta-catenin) and Pangolin (Pan, Drosophila TCF) in the Wnt/Wingless(Wg)-induced transcriptional response of Drosophila Kc cells...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28367588/effect-of-long-term-in-vitro-lithium-exposure-on-mrna-levels-of-claudin-3-cyp1a1-abcg2-and-gstm3-genes-in-the-hcmec-d3-human-brain-endothelial-cell-line
#7
Ramzi Shawahna, Kayathiri Ganeshamoorthy, Luo Huilong, Jean-Michel Scherrmann, Pierre-Olivier Couraud, Xavier Declèves
BACKGROUND AND OBJECTIVES: Lithium chloride (LiCl) has been shown to improve the tightness of brain endothelial cell monolayers in vitro by inhibition of the GSK-3β enzyme, activation of the Wnt/beta-catenin pathway and regulation of tight junction (TJ) protein expression. However, the effect of LiCl on the drug transporters and drug-metabolizing enzymes has not been addressed so far. The hCMEC/D3 cell line is a validated in vitro BBB model expressing transporters and drug-metabolizing enzymes (phase 1 and 2)...
April 3, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28348214/spemann-organizer-transcriptome-induction-by-early-beta-catenin-wnt-nodal-and-siamois-signals-in-xenopus-laevis
#8
Yi Ding, Diego Ploper, Eric A Sosa, Gabriele Colozza, Yuki Moriyama, Maria D J Benitez, Kelvin Zhang, Daria Merkurjev, Edward M De Robertis
The earliest event in Xenopus development is the dorsal accumulation of nuclear β-catenin under the influence of cytoplasmic determinants displaced by fertilization. In this study, a genome-wide approach was used to examine transcription of the 43,673 genes annotated in the Xenopus laevis genome under a variety of conditions that inhibit or promote formation of the Spemann organizer signaling center. Loss of function of β-catenin with antisense morpholinos reproducibly reduced the expression of 247 mRNAs at gastrula stage...
April 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28340578/abcb1-and-abcg2-drug-transporters-are-differentially-expressed-in-non-small-cell-lung-cancers-nsclc-and-expression-is-modified-by-cisplatin-treatment-via-altered-wnt-signaling
#9
M Vesel, J Rapp, D Feller, E Kiss, L Jaromi, M Meggyes, G Miskei, B Duga, G Smuk, T Laszlo, I Karner, J E Pongracz
BACKGROUND: Lung cancer (LC) is still the most common cause of cancer related deaths worldwide. Non-small cell lung cancer (NSCLC) accounts for 85% of all LC cases but is not a single entity. It is now accepted that, apart from the characteristic driver mutations, the unique molecular signatures of adeno- (AC) and squamous cell carcinomas (SCC), the two most common NSCLC subtypes should be taken into consideration for their management. Therapeutic interventions, however, frequently lead to chemotherapy resistance highlighting the need for in-depth analysis of regulatory mechanisms of multidrug resistance to increase therapeutic efficiency...
March 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28334814/genome-wide-association-study-identifies-novel-susceptible-loci-and-highlights-wnt-beta-catenin-pathway-in-the-development-of-adolescent-idiopathic-scoliosis
#10
Zezhang Zhu, Leilei Xu, Nelson Leung-Sang Tang, Xiaodong Qin, Zhenhua Feng, Weixiang Sun, Weiguo Zhu, Benlong Shi, Peng Liu, Saihu Mao, Jun Qiao, Zhen Liu, Xu Sun, Fangcai Li, Jack Chun-Yiu Cheng, Yong Qiu
The genetic architecture of adolescent idiopathic scoliosis (AIS) remains poorly understood. Here we present the result of a 4-stage genome-wide association study composed of 5,953 AIS patients and 8,137 controls. Overall, we identified three novel susceptible loci including rs7593846 at 2p14 near MEIS1 (Pcombined = 1.19 × 10-13, OR = 1.21, 95% CI = 1.10-1.32), rs7633294 at 3p14.1 near MAGI1 (Pcombined = 1.85 × 10-12, OR = 1.20, 95% CI = 1.09-1.32), and rs9810566 at 3q26.2 near TNIK (Pcombined = 1...
April 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28298922/interactions-between-ppar-gamma-and-the-canonical-wnt-beta-catenin-pathway-in-type-2-diabetes-and-colon-cancer
#11
REVIEW
Yves Lecarpentier, Victor Claes, Alexandre Vallée, Jean-Louis Hébert
In both colon cancer and type 2 diabetes, metabolic changes induced by upregulation of the Wnt/beta-catenin signaling and downregulation of peroxisome proliferator-activated receptor gamma (PPAR gamma) may help account for the frequent association of these two diseases. In both diseases, PPAR gamma is downregulated while the canonical Wnt/beta-catenin pathway is upregulated. In colon cancer, upregulation of the canonical Wnt system induces activation of pyruvate dehydrogenase kinase and deactivation of the pyruvate dehydrogenase complex...
2017: PPAR Research
https://www.readbyqxmd.com/read/28293067/syndecan-1-acts-as-an-important-regulator-of-cxcl1-expression-and-cellular-interaction-of-human-endometrial-stromal-and-trophoblast-cells
#12
Dunja Maria Baston-Buest, Olga Altergot-Ahmad, Sarah Jean Pour, Jan-Steffen Krüssel, Udo Rudolf Markert, Tanja Natascha Fehm, Alexandra Petra Bielfeld
Successful implantation of the embryo into the human receptive endometrium is substantial for the establishment of a healthy pregnancy. This study focusses on the role of Syndecan-1 at the embryo-maternal interface, the multitasking coreceptor influencing ligand concentration, release and receptor presentation, and cellular morphology. CXC motif ligand 1, being involved in chemotaxis and angiogenesis during implantation, is of special interest as a ligand of Syndecan-1. Human endometrial stromal cells with and without Syndecan-1 knock-down were decidualized and treated with specific inhibitors to evaluate signaling pathways regulating CXC ligand 1 expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28293052/beta-catenin-forms-protein-aggregation-at-high-concentrations-in-hek293tcells
#13
Marie Saghaeian Jazi, Seyed Mahmoud Arab Najafi
BACKGROUND: The canonical Wnt signal transduction (or the Wnt/β-catenin pathway) plays a crucial role in the development of animals and in carcinogenesis. Beta-catenin is the central component of this signaling pathway. The activation of Wnt/β-catenin signaling results in the cytoplasmic and nuclear accumulation of β-catenin. In the nucleus, β-catenin interacts with the TCF/LEF transcription factors and, therefore, participates in the upregulation or downregulation of some important genes involved in diverse cellular activities...
January 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28284560/computational-discovery-of-niclosamide-ethanolamine-a-repurposed-drug-candidate-that-reduces-growth-of-hepatocellular-carcinoma-cells-in-vitro-and-in-mice-by-inhibiting-cdc37-signaling
#14
Bin Chen, Wei Wei, Li Ma, Bin Yang, Ryan M Gill, Mei-Sze Chua, Atul J Butte, Samuel So
BACKGROUND & AIMS: Drug repositioning offers a shorter approval process than new drug development. We therefore searched large public datasets of drug-induced gene expression signatures to identify agents that might be effective against hepatocellular carcinoma (HCC). METHODS: We searched public databases of mRNA expression patterns reported from HCC specimens from patients, HCC cell lines, and cells exposed to various drugs. We identified drugs that might specifically increase expression of genes that are downregulated in HCCs and reduce expression of genes upregulated in HCCs using a non-parametric, rank-based pattern-matching strategy based on the Kolmogorov-Smirnov statistic...
March 8, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28271698/ovarian-cancer-in-endometriosis-an-update-on-the-clinical-and-molecular-aspects
#15
Rachel Ruderman, Mary Ellen Pavone
While endometriosis is a benign condition, the presence of endometriosis has been associated with the development of several types of cancers, including ovarian. Endometriomas, or ovarian endometriotic cysts, are found in 17-44% of patients with endometriosis, and may be a common precursor lesions to ovarian cancer. Endometriosis associated ovarian cancer is especially prominent in endometrioid and clear cell ovarian tumor histological subtypes. Several common pathways linking endometriosis and ovarian cancer have been elucidated, including the dominance of certain cytokines, oxidative stress, and a hyper-estrogenic hormonal milieu, which propagate both endometriosis and endometriosis associated ovarian cancer...
June 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28244852/silencing-transmembrane-protein-45b-tnem45b-inhibits-proliferation-invasion-and-tumorigenesis-in-osteosarcoma-cells
#16
(no author information available yet)
Transmembrane protein 45B (TMEM45B) is a member of TMEMs and has been reported to be expressed abnormally in differentkinds of human tumors. However, the biological function of TMEM45B in osteosarcoma remains unclear. The objective of this study was to investigate the role of TMEM45B in regulating the biological behavior of osteosarcoma cells. Oure results demonstrated that the expression of TMEM45B at both protein and mRNA levels was dramatically up-regulated human osteosarcoma cell lines. Knockdown of TMEM45B significantly suppressed the proliferation, migration and invasion of U2OS cells <em>in vitro</em>...
December 21, 2016: Oncology Research
https://www.readbyqxmd.com/read/28230988/design-and-synthesis-of-novel-cyclic-amine-benzimidazoles-for-the-treatment-of-pancreatic-cancer
#17
Vibha Pathak, Corinne Elizabeth Augelli-Szafran, Han-Xun Wei, Yonghe Li, Patsy G Oliver, Wenyan Lu, Donald J Buchsbaum, Mark J Suto
Wnt/beta-Catenin signaling pathway has a very important role in pancreatic ductal adenocarcinoma (PDAC) initiation and progression. This signaling pathway has been implicated in angiogenesis, maintenance of resistant CICs (cancer-initiating cells), metastasis, regulation of cell cycle, apoptosis and chemoresistance. We investigated the activity of a chemical series of phenyl benzimidazoles, small molecule inhibitors of Wnt signaling in LRP6-expressing HEK 293 cells against PDAC cells. Several benzimidazoles were designed, synthesized and screened under adherent and CIC conditions...
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28223363/autoinhibition-of-dishevelled-protein-regulated-by-its-extreme-c-terminus-plays-a-distinct-role-in-wnt-%C3%AE-catenin-and-wnt-planar-cell-polarity-pcp-signaling-pathways
#18
Jing Qi, Ho-Jin Lee, Audrey Saquet, Xiao-Ning Cheng, Ming Shao, Jie J Zheng, De-Li Shi
Dishevelled (Dvl) is a key intracellular signaling molecule that mediates the activation of divergent Wnt pathways. It contains three highly conserved domains known as DIX, PDZ, and DEP, the functions of which have been well characterized in β-catenin-dependent canonical and β-catenin-independent noncanonical Wnt signaling. The C-terminal region is also highly conserved from invertebrates to vertebrates. However, its function in regulating the activation of different Wnt signals remains unclear. We reported previously that Dvl conformational change triggered by the highly conserved PDZ-binding C terminus is important for the pathway specificity...
April 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28217097/feedback-activation-of-basic-fibroblast-growth-factor-signaling-via-the-wnt-%C3%AE-catenin-pathway-in-skin-fibroblasts
#19
Xu Wang, Yuting Zhu, Congcong Sun, Tao Wang, Yingjie Shen, Wanhui Cai, Jia Sun, Lisha Chi, Haijun Wang, Na Song, Chao Niu, Jiayi Shen, Weitao Cong, Zhongxin Zhu, Yuanhu Xuan, Xiaokun Li, Litai Jin
Skin wound healing is a complex process requiring the coordinated behavior of many cell types, especially in the proliferation and migration of fibroblasts. Basic fibroblast growth factor (bFGF) is a member of the FGF family that promotes fibroblast migration, but the underlying molecular mechanism remains elusive. The present RNA sequencing study showed that the expression levels of several canonical Wnt pathway genes, including Wnt2b, Wnt3, Wnt11, T-cell factor 7 (TCF7), and Frizzled 8 (FZD8) were modified by bFGF stimulation in fibroblasts...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28191283/active-%C3%AE-catenin-is-regulated-by-the-pten-pi3-kinase-pathway-a-role-for-protein-phosphatase-pp2a
#20
Amit Persad, Geetha Venkateswaran, Li Hao, Maria E Garcia, Jenny Yoon, Jaskiran Sidhu, Sujata Persad
Dysregulation of Wnt/β-catenin signaling has been associated with the development and progression of many cancers. The stability and subcellular localization of β-catenin, a dual functional protein that plays a role in intracellular adhesion and in regulating gene expression, is tightly regulated. However, little is known about the transcriptionally active form of β-catenin, Active Beta Catenin (ABC), that is unphosphorylated at serine 37 (Ser37) and threonine 41 (Thr41). Elucidating the mechanism by which β-catenin is activated to generate ABC is vital to the development of therapeutic strategies to block β-catenin signaling for cancer treatment...
November 2016: Genes & Cancer
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