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Wnt beta catenin

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https://www.readbyqxmd.com/read/28507620/expression-of-e-cadherin-beta-catenin-in-epithelial-carcinomas-of-the-thyroid-gland
#1
Koni Ivanova, Julian Ananiev, Elina Aleksandrova, Maria Magdalena Ignatova, Maya Gulubova
BACKGROUND: The aberrant activation of Wnt signalling pathway may be a common denominator for the development of thyroid tumorigenesis. It was announced that the loss of E-cadherin rather than β-catenin mutation represents a crucial event in determining the degree of differentiation of thyroid carcinomas. AIM: The aim of the study was to evaluate the expression of E-cadherin and β-catenin in the thyroid cancer tissue and to correlate these data with some histological and clinical parameters of the tumours...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28500235/beta-catenin-inhibitor-bc2059-is-efficacious-as-monotherapy-or-in-combination-with-proteasome-inhibitor-bortezomib-in-multiple-myeloma
#2
Ioanna Savvidou, Tiffany Khong, Andrew Cuddihy, Catriona McLean, Stephen Horrigan, Andrew Spencer
Currently available treatment options are unlikely to be curative for the majority of multiple myeloma (MM) patients, emphasizing a continuing role for the introduction of investigational agents that can overcome drug resistance. The canonical Wnt/beta-catenin signalling pathway, essential for self-renewal, growth and survival, has been found to be dysregulated in MM, particularly in advanced stages of disease. This provides the rationale for evaluating the novel beta-catenin inhibitor BC2059 as monotherapy and in combination with proteasome inhibitors in vitro and in vivo...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28476164/wnt-beta-catenin-pathway-modulating-anticancer-immune-response
#3
REVIEW
Sachin Gopalkrishna Pai, Benedito A Carneiro, Jose Mauricio Mota, Ricardo Costa, Caio Abner Leite, Romualdo Barroso-Sousa, Jason Benjamin Kaplan, Young Kwang Chae, Francis Joseph Giles
Wnt/β-catenin signaling, a highly conserved pathway through evolution, regulates key cellular functions including proliferation, differentiation, migration, genetic stability, apoptosis, and stem cell renewal. The Wnt pathway mediates biological processes by a canonical or noncanonical pathway, depending on the involvement of β-catenin in signal transduction. β-catenin is a core component of the cadherin protein complex, whose stabilization is essential for the activation of Wnt/β-catenin signaling. As multiple aberrations in this pathway occur in numerous cancers, WNT-directed therapy represents an area of significant developmental therapeutics focus...
May 5, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28474989/discovery-of-small-molecule-inhibitors-of-the-wnt-%C3%AE-catenin-signaling-pathway-by-targeting-%C3%AE-catenin-tcf4-interactions
#4
Maocai Yan, Guanqun Li, Jing An
The Wnt/β-catenin signaling pathway typically shows aberrant activation in various cancer cells, especially colorectal cancer cells. This signaling pathway regulates the expression of a variety of tumor-related proteins, including c-myc and cyclin D1, and plays essential roles in tumorigenesis and in the development of many cancers. Small molecules that block the interactions between β-catenin and Tcf4, a downstream stage of activation of the Wnt/β-catenin signaling pathway, could efficiently cut off this signal transduction and thereby act as a novel class of anticancer drugs...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28472177/ubiquitin-carboxyl-terminal-esterase-l1-uchl1-is-associated-with-stem-like-cancer-cell-functions-in-pediatric-high-grade-glioma
#5
Patricia C Sanchez-Diaz, Judy C Chang, Emily S Moses, Tu Dao, Yidong Chen, Jaclyn Y Hung
Pediatric high-grade gliomas represent 8-12% of all primary tumors of the nervous system in children. Five-year survival for these pediatric aggressive tumors is poor (15-35%) indicating the need to develop better treatments for pediatric high-grade gliomas. In this work we used SF188 and SJ-GBM2 cell lines to study the function of the ubiquitin carboxyl-terminal esterase L1 (UCHL1), a deubiquitinase de-regulated in several cancers, in pediatric high-grade gliomas. UCHL1 depletion in SF188 and SJ-GBM2 glioma cells was associated with decreased cell proliferation and invasion, along with a reduced ability to grow in soft agar and to form spheres (i...
2017: PloS One
https://www.readbyqxmd.com/read/28469658/neural-stem-cells-over-expressing-brain-derived-neurotrophic-factor-promote-neuronal-survival-and-cytoskeletal-protein-expression-in-traumatic-brain-injury-sites
#6
Tao Chen, Yan Yu, Liu-Jiu Tang, Li Kong, Cheng-Hong Zhang, Hai-Ying Chu, Liang-Wei Yin, Hai-Ying Ma
Cytoskeletal proteins are involved in neuronal survival. Brain-derived neurotrophic factor can increase expression of cytoskeletal proteins during regeneration after axonal injury. However, the effect of neural stem cells genetically modified by brain-derived neurotrophic factor transplantation on neuronal survival in the injury site still remains unclear. To examine this, we established a rat model of traumatic brain injury by controlled cortical impact. At 72 hours after injury, 2 × 10(7) cells/mL neural stem cells overexpressing brain-derived neurotrophic factor or naive neural stem cells (3 mL) were injected into the injured cortex...
March 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28463112/a-novel-als-associated-variant-in-ubqln4%C3%A2-regulates-motor-axon-morphogenesis
#7
Brittany M Edens, Jianhua Yan, Han-Xiang Deng, Teepu Siddique, Yongchao C Ma
The etiological underpinnings of amyotrophic lateral sclerosis (ALS) are complex and incompletely understood, although contributions to pathogenesis by regulators of proteolytic pathways have become increasingly apparent. Here, we present a novel variant in UBQLN4 that is associated with ALS and show that its expression compromises motor axon morphogenesis in mouse motor neurons and in zebrafish. We further demonstrate that the ALS-associated UBQLN4 variant impairs proteasomal function, and identify the Wnt signaling pathway effector beta-catenin as a UBQLN4 substrate...
May 2, 2017: ELife
https://www.readbyqxmd.com/read/28427939/nrage-induces-%C3%AE-catenin-arm-o-glcnacylation-and-negatively-regulates-wnt-signaling
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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