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Wnt pathway

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https://www.readbyqxmd.com/read/29165387/nitric-oxide-mediates-crosstalk-between-interleukin-1%C3%AE-and-wnt-signaling-in-primary-human-chondrocytes-by-reducing-dkk1-and-frzb-expression
#1
Leilei Zhong, Stefano Schivo, Xiaobin Huang, Jeroen Leijten, Marcel Karperien, Janine N Post
Interleukin 1 beta (IL1β) and Wingless-Type MMTV Integration Site Family (WNT) signaling are major players in Osteoarthritis (OA) pathogenesis. Despite having a large functional overlap in OA onset and development, the mechanism of IL1β and WNT crosstalk has remained largely unknown. In this study, we have used a combination of computational modeling and molecular biology to reveal direct or indirect crosstalk between these pathways. Specifically, we revealed a mechanism by which IL1β upregulates WNT signaling via downregulating WNT antagonists, DKK1 and FRZB...
November 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29164615/arhgef19-interacts-with-braf-to-activate-mapk-signaling-during-the-tumorigenesis-of-non-small-cell-lung-cancer
#2
Yingchang Li, Zhihua Ye, Shuai Chen, Zhiwen Pan, Qianghua Zhou, Yi-Zhuo Li, Wen-di Shuai, Chun-Mei Kuang, Qi-Hua Peng, Wei Shi, Xueli Mao, Ran-Yi Liu, Wenlin Huang
Rho guanine nucleotide exchange factors (RhoGEFs) are proteins that activate Rho GTPases in response to extracellular stimuli and regulate various biologic processes. ARHGEF19, one of RhoGEFs, was reported to activate RhoA in the Wnt-PCP pathway controlling convergent extension in Xenopus gastrulation. The goal of this study was to identify the role and molecular mechanisms of ARHGEF19 in the tumorigenesis of non-small cell lung cancer (NSCLC). ARHGEF19 expression was significantly elevated in NSCLC tissues, and ARHGEF19 levels were significantly associated with lymph node status, distant metastasis and TNM stage; Patients with high ARHGEF19 levels had poor overall survival (OS) and progression-free survival (PFS)...
November 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29164587/mir-214-inhibits-human-mesenchymal-stem-cells-differentiating-into-osteoblasts-through-targeting-%C3%AE-catenin
#3
J-P Li, H-T Zhuang, M-Y Xin, Y-L Zhou
OBJECTIVE: Wnt/β-catenin signaling pathway promotes osteoblasts (OBs) differentiation through up-regulating osteoblast-specific gene runt-related transcription factor 2 (RUNX2) expression. It was showed that microRNA-214 (miR-214) was abnormally increased in bone tissue from osteoporosis patients, suggesting its role in osteogenesis. Bioinformatics analysis revealed the complementary binding site between miR-214 and 3'-UTR of β-catenin. This study investigated the effects of miR-214 in regulating β-catenin expression and bone marrow mesenchymal stem cells (BMSCs) differentiating into OB...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164582/mir-15a-5p-suppresses-endometrial-cancer-cell-growth-via-wnt-%C3%AE-catenin-signaling-pathway-by-inhibiting-wnt3a
#4
Z-M Wang, X-H Wan, G-Y Sang, J-D Zhao, Q-Y Zhu, D-M Wang
OBJECTIVE: Endometrial cancer is one of the three most common types of gynecologic cancer. The global incidence has increased in recent years. microRNAs (miRNAs) regulate numerous biological processes by binding to the 3'UTR of target mRNA to down-regulate protein synthesis. PATIENTS AND METHODS: Endometrial cancer patients received surgeries in our hospital were enrolled. MiR-15a-5p mimic or miR-15a-5p inhibitor was transfected into HEC-1-A cells by lentivirus...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164578/mir-590-3p-promotes-colon-cancer-cell-proliferation-via-wnt-%C3%AE-catenin-signaling-pathway-by-inhibiting-wif1-and-dkk1
#5
Z-Y Feng, X-H Xu, D-Z Cen, C-Y Luo, S-B Wu
OBJECTIVE: Colon cancer is one of the most common and deadly types of gastrointestinal tumor. Despite progressive treatments, the patient prognosis has not been improved effectively. MATERIALS AND METHODS: Expression of miRNA and mRNA were tested by Realtime PCR. Cell cycle was detected by flow cytometry. Cell viability was evaluated by MTT assay. Cell spheroid formation was determined by colony assay. Wnt signaling pathway activity was evaluated by TOP/FOP ratio...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164556/the-effect-of-mir-224-down-regulation-on-sw80-cell-proliferation-and-apoptosis-and-weakening-of-adm-drug-resistance
#6
C-Q Liang, Y-M Fu, Z-Y Liu, B-R Xing, Y Jin, J-L Huang
OBJECTIVE: Glycogen synthase kinase-3β (GSK-3β) can phosphorylate and degrade β-catenin, and negatively regulates Wnt/β-catenin signal pathway. MiR-224 up-regulation is associated with colorectal cancer (CRC). Bioinformatics analysis showed complementary binding sites between miR-224 and GSK-3β. This study investigated if miR-224 plays a role in mediating GSK-3β expression, Wnt/β-catenin pathway activity, CRC cell proliferation, apoptosis as well as drug sensitivity of Adriamycin (ADM)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29163887/a-novel-peptide-stapling-strategy-enables-the-retention-of-ring-closing-amino-acid-side-chains-for-the-wnt-%C3%AE-catenin-signalling-pathway
#7
Ye Wu, Ye-Hua Li, Xiang Li, Yan Zou, Hong-Li Liao, Lei Liu, Ye-Guang Chen, Donald Bierer, Hong-Gang Hu
The all-hydrocarbon peptide stapling strategy has recently been extensively explored in drug discovery. There remains the potential for improvement regarding the retention of the amino acid side chains at the stapled positions. Herein, we describe a new series of amino acids that not only contain the native side chains, but also carry the alkenyl arms that are needed for the ring-closing stapling chemistry. We incorporate the new amino acids into a β-catenin-binding domain of Axin (469-482) and develop a new category of stapled peptides with the retention of the native side chains...
November 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29163854/interactions-between-tgf-%C3%AE-1-canonical-wnt-%C3%AE-catenin-pathway-and-ppar-%C3%AE-in-radiation-induced-fibrosis
#8
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Radiation therapy induces DNA damage and inflammation leading to fibrosis. Fibrosis can occur 4 to 12 months after radiation therapy. This process worsens with time and years. Radiation-induced fibrosis is characterized by fibroblasts proliferation, myofibroblast differentiation, and synthesis of collagen, proteoglycans and extracellular matrix. Myofibroblasts are non-muscle cells that can contract and relax. Myofibroblasts evolve towards irreversible retraction during fibrosis process. In this review, we discussed the interplays between transforming growth factor-β1 (TGF-β1), canonical WNT/β-catenin pathway and peroxisome proliferator-activated receptor gamma (PPAR γ) in regulating the molecular mechanisms underlying the radiation-induced fibrosis, and the potential role of PPAR γ agonists...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163694/exploration-of-the-mechanism-of-colorectal-cancer-metastasis-using-microarray-analysis
#9
Shuo Chen, Yan Wang, Lin Zhang, Yinan Su, Mingqing Zhang, Juan Wang, Xipeng Zhang
The aim of the present study was to investigate the mechanism of metastasis in colorectal cancer (CRC) using microRNA (miRNA) and mRNA expression profiles. The mRNA and miRNA expression profiles of the GSE2509 and GSE56350 datasets were obtained from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) and differentially expressed miRNAs (DEMs) were identified using the limma software package. The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the DEGs...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29163692/clinical-significance-and-biological-role-of-wnt10a-in-ovarian-cancer
#10
Ping Li, Wenlian Liu, Qian Xu, Changxiu Wang
Ovarian cancer is one of the five most malignant types of cancer in females, and the only currently effective therapy is surgical resection combined with chemotherapy. Wnt family member 10A (Wnt10a) has previously been identified to serve an oncogenic function in several tumor types, and was revealed to have clinical significance in renal cell carcinoma; however, there is still only limited information regarding the function of Wnt10a in the carcinogenesis of ovarian cancer. The present study identified increased expression levels of Wnt10a in two cell lines, SKOV3 and A2780, using reverse transcription-polymerase chain reaction...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29163677/trim37-promotes-tumor-cell-proliferation-and-drug-resistance-in-pediatric-osteosarcoma
#11
Yanling Tao, Meiyun Xin, Huanchen Cheng, Zongxuan Huang, Tiantian Hu, Teng Zhang, Jianlong Wang
Osteosarcoma (OS) is among the most frequently occurring bone tumors, particularly in children. Clinical treatment of OS is limited due to several factors including resistance to chemotherapy drugs and metastasis, and the underlying molecular mechanisms remain unclear. In the present study, tripartite motif containing 37 (TRIM37) expression levels were upregulated in tumor samples and associated with the development of drug resistance in OS. Furthermore, chemotherapy drug treatment (doxorubicin, cisplatin and methotrexate) induced TRIM37 expression in OS cells in vitro...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29163160/aberrant-wnt-beta-catenin-pathway-activation-in-dialysate-induced-peritoneal-fibrosis
#12
Yuanyuan Guo, Lin Sun, Li Xiao, Rong Gou, Yudong Fang, Yan Liang, Ruiqiang Wang, Ningjun Li, Fuyou Liu, Lin Tang
Peritoneal dialysis (PD)-associated peritoneal fibrosis is a chronic progress which induces ultrafiltration failure. It remains a challenge to prevent the progression of PD-associated fibrosis in clinic practice. Wnt/β-catenin pathway plays important role in many severe fibrotic diseases, here we investigated its contribution to the development of peritoneal damage. We isolated mesothelial cells (MC) from the effluent of PD patients and found that the expressions of Wnt1, Wnt5a, β-catenin, and LEF1 were increased in patients with more than 1-year PD compared with patients who just started with PD (<1 month)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29162747/therapeutic-effect-of-a-novel-wnt-pathway-inhibitor-on-cardiac-regeneration-after-myocardial-infarction
#13
Chunyu Zeng, Dezhong Yang, Wenbin Fu, Liangpeng Li, Xuewei Xia, Qiao Liao, Rongchuan Yue, Hongmei Chen, Xiongwen Chen, Songzhu An, Wei Eric Wang
After myocardial infarction (MI), the heart is difficult to repair because of great loss of cardiomyoctyes and lack of cardiac regeneration. Novel drug candidates that aim at reducing pathological remodeling and stimulating cardiac regeneration are highly desirable. In this study, we identified if and how a novel porcupine inhibitor CGX1321 influenced MI and cardiac regeneration. Permanent ligation of left anterior descending (LAD) coronary artery was performed in mice to induce MI injury. Cardiac function was measured by echocardiography, infarct size was examined by TTC staining...
November 21, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29162699/dnajb1-prkaca-fusion-kinase-interacts-with-%C3%AE-catenin-and-the-liver-regenerative-response-to-drive-fibrolamellar-hepatocellular-carcinoma
#14
Edward R Kastenhuber, Gadi Lalazar, Shauna L Houlihan, Darjus F Tschaharganeh, Timour Baslan, Chi-Chao Chen, David Requena, Sha Tian, Benedikt Bosbach, John E Wilkinson, Sanford M Simon, Scott W Lowe
A segmental deletion resulting in DNAJB1-PRKACA gene fusion is now recognized as the signature genetic event of fibrolamellar hepatocellular carcinoma (FL-HCC), a rare but lethal liver cancer that primarily affects adolescents and young adults. Here we implement CRISPR-Cas9 genome editing and transposon-mediated somatic gene transfer to demonstrate that expression of either the endogenous fusion protein or a chimeric cDNA leads to the formation of indolent liver tumors in mice that closely resemble human FL-HCC...
November 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29162129/integrating-molecular-and-structural-findings-wnt-as-a-possible-actor-in-shaping-cognitive-impairment-in-cornelia-de-lange-syndrome
#15
REVIEW
Laura Avagliano, Paolo Grazioli, Milena Mariani, Gaetano P Bulfamante, Angelo Selicorni, Valentina Massa
Cornelia de Lange Syndrome (CdLS) is a choesinopathy: a severe genetic disorder caused by mutations in the cohesin complex genes. The phenotype is characterized by typical facial dysmorphism, growth impairment and multiorgan abnormalities including brain alterations. Wnt pathway is known to play a fundamental role in central nervous system development and it has been shown that Wnt pathway is disrupted in CdLS animal models and patients cells. In this review we investigate the possible link between Wnt pathway disruption and brain abnormalities in Cornelia de Lange Syndrome as such molecular impairment could lead to an abnormal embryonic development resulting in brain abnormalities (i...
November 21, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29161772/microarray-analysis-of-gene-expression-in-the-cyclooxygenase-cox-knockout-mice-a-connection-to-autism-spectrum-disorder
#16
Ravneet Rai-Bhogal, Eizaaz Ahmad, Hongyan Li, Dorota A Crawford
The cellular and molecular events that take place during brain development play an important role in governing function of the mature brain. Lipid signalling molecules such as prostaglandin E2 (PGE2 ) play an important role in healthy brain development. Abnormalities along the COX/PGE2 signalling pathway due to genetic or environmental causes have been linked to Autism Spectrum Disorders (ASDs). This study aims to evaluate the effect of altered COX/PGE2 signalling on development and function of the prenatal brain using male mice lacking cyclooxygenase-1 and -2 (COX-1(-/-) and COX-2(-/-) ) as potential model systems of ASD...
November 21, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29160735/up-regulation-of-wnt-%C3%AE-catenin-expression-is-accompanied-with-vascular-repair-after-traumatic-brain-injury
#17
Arjang Salehi, Amandine Jullienne, Mohsen Baghchechi, Mary Hamer, Mark Walsworth, Virginia Donovan, Jiping Tang, John H Zhang, William J Pearce, Andre Obenaus
Recent data suggest that repairing the cerebral vasculature after traumatic brain injury (TBI) may help to improve functional recovery. The Wnt/β-catenin signaling pathway promotes blood vessel formation during vascular development, but its role in vascular repair after TBI remains elusive. In this study, we examined how the cerebral vasculature responds to TBI and the role of Wnt/β-catenin signaling in vascular repair. We induced a moderate controlled cortical impact in adult mice and performed vessel painting to visualize the vascular alterations in the brain...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29160422/identification-of-the-difference-in-the-pathogenesis-in-heart-failure-arising-from-different-etiologies-using-a-microarray-dataset
#18
Guodong Yang, Shuping Chen, Aiqun Ma, Jun Lu, Tingzhong Wang
OBJECTIVES: Clinically, patients with chronic heart failure arising from different etiologies receive the same treatment. However, the prognoses of these patients differ. The purpose of this study was to elucidate whether the pathogenesis of heart failure arising from different etiologies differs. METHODS: Heart failure-related dataset GSE1145 was obtained from the Gene Expression Omnibus database. Differentially expressed genes were identified using R. A protein-protein interaction network of the differentially expressed genes was constructed using Search Tool for the Retrieval of Interacting Genes...
October 2017: Clinics
https://www.readbyqxmd.com/read/29159713/tmem88-mediates-inflammatory-cytokines-secretion-by-regulating-jnk-p38-and-canonical-wnt-%C3%AE-catenin-signaling-pathway-in-lx-2-cells
#19
Tao Xu, Lin-Xin Pan, Yun-Xuan Ge, Peng Li, Xiao-Ming Meng, Cheng Huang, Jun Li
Recent data have shown that Transmembrane protein 88 (TMEM88), a newly discovered protein localized on the cell membrane, interacts with the PDZ domain of disheveled-1 (Dvl-1) in Xenopus embryos. Indeed, TMEM88 might inhibit the canonical Wnt/β-catenin signaling pathway by competing with LRP5/6 for interaction with Dvl-1. TMEM88 plays a crucial role in regulating human stem cell differentiation and embryonic development. Until recently, the function of TMEM88 has been a matter of debate. In this study, we explore the role of TMEM88 in cytokine secretion and the role of the MAPK and Wnt/β-catenin signaling pathway in tumor necrosis factor-alpha (TNF-α)-induced TMEM88 expression in LX-2 cells...
November 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/29158916/the-involvement-of-%C3%AE-catenin-cox-2-vegf-axis-in-nmda-caused-retinopathy
#20
Dan Ning, Wei Kevin Zhang, Han Tian, Xiao-Jun Li, Min Liu, Yu-Sang Li, He-Bin Tang
NMDA, a molecule that is capable of producing the loss of retinal ganglia cells (RGCs), has been widely studied; however, the detailed mechanism is not yet clarified. Previously, Wnt/β-catenin signaling has been suggested to be involved in the NMDA-induced retinopathy. In addition, previous investigations in our group demonstrated the presence of a Wnt/β-catenin/COX-2 axis in dorsal root ganglions (DRGs). Therefore, here in this paper, we tested whether there is an association of such axis with NMDA-induced RGC loss...
2017: Journal of Ophthalmology
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