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Syk pathway cancer

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https://www.readbyqxmd.com/read/29703908/a-side-effect-free-method-for-identifying-cancer-drug-targets
#1
Md Izhar Ashraf, Seng-Kai Ong, Shama Mujawar, Shrikant Pawar, Pallavi More, Somnath Paul, Chandrajit Lahiri
Identifying effective drug targets, with little or no side effects, remains an ever challenging task. A potential pitfall of failing to uncover the correct drug targets, due to side effect of pleiotropic genes, might lead the potential drugs to be illicit and withdrawn. Simplifying disease complexity, for the investigation of the mechanistic aspects and identification of effective drug targets, have been done through several approaches of protein interactome analysis. Of these, centrality measures have always gained importance in identifying candidate drug targets...
April 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29693170/inflammatory-genes-are-novel-prognostic-biomarkers-for-colorectal-cancer
#2
Hao Jiang, Li Dong, Fangyan Gong, Yuping Gu, Henghun Zhang, Dong Fan, Zhiguo Sun
Inflammatory genes serve a crucial role in the pathogenesis of inflammation‑associated tumors. However, as recent studies have mainly focused on the effects of single inflammatory genes on colorectal cancer (CRC), but not on the global interactions between genes, the underlying mechanisms between inflammatory genes and CRC remain unclear. In the current study, two inflammation‑associated networks were constructed based on inflammatory genes, differentially expressed genes (DEGs) in CRC vs. normal samples, and protein‑protein interactions (PPIs)...
April 18, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29643476/inhibition-of-ovarian-tumor-cell-invasiveness-by-targeting-syk-in-the-tyrosine-kinase-signaling-pathway
#3
Yu Yu, Yohan Suryo Rahmanto, Meng-Horng Lee, Pei-Hsun Wu, Jude M Phillip, Chuan-Hsiang Huang, Michele I Vitolo, Stephanie Gaillard, Stuart S Martin, Denis Wirtz, Ie-Ming Shih, Tian-Li Wang
Cell motility and invasiveness are prerequisites for dissemination, and largely account for cancer mortality. We have identified an actionable kinase, spleen tyrosine kinase (SYK), which is keenly tightly associated with tumor progression in ovarian cancer. Here, we report that active recombinant SYK directly phosphorylates cortactin and cofilin, which are critically involved in assembly and dynamics of actin filament through phosphorylation signaling. Enhancing SYK activity by inducing expression of a constitutively active SYK mutant, SYK130E , increased growth factor-stimulated migration and invasion of ovarian cancer cells, which was abrogated by cortactin knockdown...
April 11, 2018: Oncogene
https://www.readbyqxmd.com/read/29540860/dectin-1-stimulates-il-33-expression-in-dendritic-cells-via-upregulation-of-irf4
#4
Dongjiao Wang, Sujun Gao, Jintong Chen, Yinghua Zhao, Yuxue Jiang, Xiao Chu, Xiaohua Wang, Ning Liu, Tianxue Qin, Qing Yi, Ying Yue, Siqing Wang
Interleukin-33 (IL-33) is a potent contributor to antiviral immune responses and antitumor immunity. We recently discovered that IL-33 is overexpressed in dectin-1-activated dendritic cells (DCs). However, mechanisms of dectin-1-induced IL-33 expression in DCs remain elusive. Curdlan, an agonist of dectin-1, was used to mature DCs in this study. We found that dectin-1-induced IL-33 expression in DCs relies on Syk and Raf-1 pathways. By using nuclear factor (NF)-κB inhibitors, we also found that dectin-1-induced IL-33 expression relies on NF-κB signaling...
March 14, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29340070/a-novel-orally-available-syk-src-jak2-inhibitor-sklb-850-showed-potent-anti-tumor-activities-in-b-cell-lymphoma-bcl-models
#5
Nannan Zhang, Guo Zhang, Ning Liu, Wanting Lin, Sen Ji, Mingwu Zheng, Kai Chen, Xiao Liang, Guobo Li, Yu Ma, Jun Zhu, Ting Niu, Lin-Li Li, Jiong Li, Yu-Quan Wei, Sheng-Yong Yang
B cell lymphoma (BCL) is the most frequently diagnosed type of non-Hodgkin lymphoma (NHL), and accounts for about 4% of all cancers in the USA. Kinases spleen tyrosine kinase (Syk), Src, and Janus kinase 2 (JAK2) have been thought as potential targets for the treatment of BCL. We have recently developed a multikinase inhibitor, SKLB-850, which potently inhibits Syk, Src, and JAK2. The aim of this study is to investigate the anti-BCL activities and mechanisms of action of SKLB-850 both in vitro and in vivo ...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29286114/cigarette-smoke-induced-egfr-activation-promotes-epithelial-mesenchymal-migration-of-human-retinal-pigment-epithelial-cells-through-regulation-of-the-fak-mediated-syk-src-pathway
#6
Ga Bin Park, Daejin Kim
Epithelial-mesenchymal transition (EMT) of retinal pigment epithelial (RPE) cells is inevitable change of age‑related macular degeneration (AMD). Smoking is a major risk factor for the development of EMT in several diseases, including lung cancer. Cigarette smoke‑induced stress promotes the production of epidermal growth factor (EGF) in RPE cells. However, the underlying signaling pathways induced by aberrant EGF receptor (EGFR) expression in cigarette smoke-exposed RPE cells remain largely unknown. In the present study, the morphological transformation and production of EMT-associated cytokines were investigated to analyze the effect of smoking on the retina...
March 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29202478/%C3%AE-%C3%AE-tcr-recruits-the-syk-pi3k-axis-to-drive-proinflammatory-differentiation-program
#7
Ryunosuke Muro, Takeshi Nitta, Kenta Nakano, Tadashi Okamura, Hiroshi Takayanagi, Harumi Suzuki
γδT cells produce inflammatory cytokines and have been implicated in the pathogenesis of cancer, infectious diseases, and autoimmunity. The T cell receptor (TCR) signal transduction that specifically regulates the development of IL-17-producing γδT (γδT17) cells largely remains unclear. Here, we showed that the receptor proximal tyrosine kinase Syk is essential for γδTCR signal transduction and development of γδT17 in the mouse thymus. Zap70, another tyrosine kinase essential for the development of αβT cells, failed to functionally substitute for Syk in the development of γδT17...
January 2, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29137391/activated-spleen-tyrosine-kinase-promotes-malignant-progression-of-oral-squamous-cell-carcinoma-via-mtor-s6-signaling-pathway-in-an-erk1-2-independent-manner
#8
Pan Gao, Xianghe Qiao, Haibin Sun, Yi Huang, Jie Lin, Longjiang Li, Xiaoyi Wang, Chunjie Li
Spleen tyrosine kinase (SYK), a non-receptor cytoplasmic tyrosine enzyme, is well known for its ability in certain pathways through immune receptors. Recently, SYK role in cancer has been widely studied. SYK plays a dual role as a tumor suppressor and tumor promoter. Nevertheless, its role in oral squamous cell carcinoma (OSCC) has not been fully investigated. In the current study, samples from OSCC tumors and adjacent normal counterparts were collected and SYK expression was evaluated by real-time qPCR. SYK mRNA expression in tumors was higher than the normal tissues...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29055830/pharmacological-inhibition-of-tankyrase-induces-bone-loss-in-mice-by-increasing-osteoclastogenesis
#9
Shunichi Fujita, Tomoyuki Mukai, Takafumi Mito, Shoko Kodama, Akiko Nagasu, Mizuho Kittaka, Teruki Sone, Yasuyoshi Ueki, Yoshitaka Morita
Tankyrase is a poly (ADP-ribose) polymerase that leads to ubiquitination and degradation of target proteins. Since tankyrase inhibitors suppress the degradation of AXIN protein, a negative regulator of the canonical Wnt pathway, they effectively act as Wnt inhibitors. Small molecule tankyrase inhibitors are being investigated as drug candidates for cancer and fibrotic diseases, in which the Wnt pathways are aberrantly activated. Tankyrase is also reported to degrade the adaptor protein SH3BP2 (SH3 domain-binding protein 2)...
October 18, 2017: Bone
https://www.readbyqxmd.com/read/28933554/rational-targeting-of-cellular-cholesterol-in-diffuse-large-b-cell-lymphoma-dlbcl-enabled-by-functional-lipoprotein-nanoparticles-a-therapeutic-strategy-dependent-on-cell-of-origin
#10
Jonathan S Rink, Shuo Yang, Osman Cen, Tim Taxter, Kaylin M McMahon, Sol Misener, Amir Behdad, Richard Longnecker, Leo I Gordon, C Shad Thaxton
Cancer cells have altered metabolism and, in some cases, an increased demand for cholesterol. It is important to identify novel, rational treatments based on biology, and cellular cholesterol metabolism as a potential target for cancer is an innovative approach. Toward this end, we focused on diffuse large B-cell lymphoma (DLBCL) as a model because there is differential cholesterol biosynthesis driven by B-cell receptor (BCR) signaling in germinal center (GC) versus activated B-cell (ABC) DLBCL. To specifically target cellular cholesterol homeostasis, we employed high-density lipoprotein-like nanoparticles (HDL NP) that can generally reduce cellular cholesterol by targeting and blocking cholesterol uptake through the high-affinity HDL receptor, scavenger receptor type B-1 (SCARB1)...
November 6, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28819788/insulin-like-growth-factor-1-activates-different-catalytic-subunits-p110-of-pi3k-in-a-cell-type-dependent-manner-to-induce-lipogenesis-dependent-epithelial-mesenchymal-transition-through-the-regulation-of-adam10-and-adam17
#11
Ga Bin Park, Daejin Kim
The activation of phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) is critical for the induction of epithelial-mesenchymal transition (EMT) by growth factors, including insulin-like growth factor 1 (IGF-1). The activation of intracellular lipogenesis provides proliferative and survival signals for cancer cells. In this study, we investigated the connection between lipogenesis-related EMT processes and IGF-1-mediated PI3K p110 isoform activation in primary (SW480 cells) and metastatic (SW620) colon carcinoma cells...
February 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28791394/identification-of-key-genes-and-pathways-associated-with-classical-hodgkin-lymphoma-by-bioinformatics-analysis
#12
Zhixing Kuang, Li Guo, Xun Li
The current study aimed to explore the mechanisms associated with classic Hodgkin lymphoma (cHL) to identify novel diagnostic and therapeutic targets. The GES12453 microarray dataset was downloaded from the Gene Expression Omnibus database; the differentially expressed genes (DEGs) between cHL samples and normal B cell samples by were identified using the limma package. Gene ontology (GO) and pathway enrichment analysis of DEGs gene were performed. Furthermore, construction and analysis of protein‑protein interaction (PPI) network was performed, and co‑expression modules of DEGs were produced...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28791367/molecular-mechanisms-of-breast-cancer-metastasis-by-gene-expression-profile-analysis
#13
Tianying Zheng, Aijun Wang, Dongyan Hu, Yonggang Wang
Metastasis is the main cause of breast cancer‑related mortalities. The present study aimed to uncover the relevant molecular mechanisms of breast cancer metastasis and to explore potential biomarkers that may be used for prognosis. Expression profile microarray data GSE8977, which contained 22 stroma samples (15 were from normal breast and 7 were from invasive ductal carcinoma tumor samples), were obtained from the Gene Expression Omnibus database. Following data preprocessing, differentially expressed genes (DEGs) were selected based on analyses conducted using the linear models for microarray analysis package from R and Bioconductor software...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28722316/the-mincle-ligand-trehalose-dibehenate-differentially-modulates-m1-like-and-m2-like-macrophage-phenotype-and-function-via-syk-signaling
#14
Kristel Kodar, Jacquie L Harper, Melanie J McConnell, Mattie S M Timmer, Bridget L Stocker
INTRODUCTION: Macrophages play a significant role in the progression of diseases, such as cancer, making them a target for immune-modulating agents. Trehalose dibehenate (TDB) is known to activate M1-like macrophages via Mincle, however, the effect of TDB on M2-like macrophages, which are found in the tumor microenvironment, has not been studied. METHODS: qRT-PCR, flow cytometry, cytokine ELISA, and Western Blotting were used to study the effect of TDB on GM-CSF and M-CSF/IL-4 derived bone marrow macrophages (BMMs) from C57BL/6 and Mincle-/- mice...
December 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28706459/beauvericin-a-cyclic-peptide-inhibits-inflammatory-responses-in-macrophages-by-inhibiting-the-nf-%C3%AE%C2%BAb-pathway
#15
Sulgi Yoo, Mi-Yeon Kim, Jae Youl Cho
Beauvericin (BEA), a cyclic hexadepsipeptide produced by the fungus Beauveria bassiana, is known to have anti-cancer, anti-inflammatory, and anti-microbial actions. However, how BEA suppresses macrophage-induced inflammatory responses has not been fully elucidated. In this study, we explored the anti-inflammatory properties of BEA and the underlying molecular mechanisms using lipopolysaccharide (LPS)-treated macrophage-like RAW264.7 cells. Levels of nitric oxide (NO), mRNA levels of transcription factors and the inflammatory genes inducible NO synthase (iNOS) and interleukin (IL)-1, and protein levels of activated intracellular signaling molecules were determined by Griess assay, semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), luciferase reporter gene assay, and immunoblotting analysis...
July 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28558959/the-transcriptional-landscape-of-p53-signalling-pathway
#16
Chizu Tanikawa, Yao-Zhong Zhang, Ryuta Yamamoto, Yusuke Tsuda, Masami Tanaka, Yuki Funauchi, Jinichi Mori, Seiya Imoto, Rui Yamaguchi, Yusuke Nakamura, Satoru Miyano, Hidewaki Nakagawa, Koichi Matsuda
Although recent cancer genomics studies have identified a large number of genes that were mutated in human cancers, p53 remains as the most frequently mutated gene. To further elucidate the p53-signalling network, we performed transcriptome analysis on 24 tissues in p53(+/+) or p53(-/-) mice after whole-body X-ray irradiation. Here we found transactivation of a total of 3551 genes in one or more of the 24 tissues only in p53(+/+) mice, while 2576 genes were downregulated. p53 mRNA expression level in each tissue was significantly associated with the number of genes upregulated by irradiation...
June 2017: EBioMedicine
https://www.readbyqxmd.com/read/28391340/targeting-the-tyrosine-kinase-signalling-pathways-for-treatment-of-immune-mediated-glomerulonephritis-from-bench-to-bedside-and-beyond
#17
REVIEW
Terry King-Wing Ma, Stephen P McAdoo, Frederick Wai Keung Tam
Glomerulonephritis (GN) affects patients of all ages and is an important cause of morbidity and mortality. Non-selective immunosuppressive drugs have been used in immune-mediated GN but often result in systemic side effects and occasionally fatal infective complications. There is increasing evidence from both preclinical and clinical studies that abnormal activation of receptor and non-receptor tyrosine kinase signalling pathways are implicated in the pathogenesis of immune-mediated GN. Activation of spleen tyrosine kinase (SYK), Bruton's tyrosine kinase (BTK), platelet-derived growth factor receptor (PDGFR), epidermal growth factor receptor (EGFR) and discoidin domain receptor 1 (DDR1) have been demonstrated in anti-GBM disease...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28350104/induction-of-galectin-1-by-tlr-dependent-pi3k-activation-enhances-epithelial-mesenchymal-transition-of-metastatic-ovarian-cancer-cells
#18
Ga Bin Park, Yoon Hee Chung, Daejin Kim
The expression of different toll-like receptors (TLRs) on tumor cells has been associated with disease aggressiveness, treatment resistance, and poor prognosis. The phosphatidylinositol 3-kinase (PI3K)/AKT pathway is considered critical for cancer cell survival and proliferation. Thus, we investigated the effect of TLR-stimulated PI3K activation on the epithelial-to-mesenchymal transition (EMT) of primary (Caov-3) and metastatic (SK‑OV‑3) epithelial ovarian cancer cell lines in this study. TLR engagement with various ligands promoted the expression of class IA PI3K (p110α, p110β, and p110δ) and increased the expression of mesenchymal markers (N-cadherin, Slug, Vimentin, Snail, α-SMA, and TCF) in SK‑OV‑3 cells...
May 2017: Oncology Reports
https://www.readbyqxmd.com/read/28345605/extracellular-matrix-protein-reelin-promotes-myeloma-progression-by-facilitating-tumor-cell-proliferation-and-glycolysis
#19
Xiaodan Qin, Liang Lin, Li Cao, Xinwei Zhang, Xiao Song, Jie Hao, Yan Zhang, Risheng Wei, Xiaojun Huang, Jin Lu, Qing Ge
Reelin is an extracellular matrix protein that is crucial for neuron migration, adhesion, and positioning. We examined the expression of Reelin in a large cohort of multiple myeloma patients recorded in Gene Expression Omnibus (GEO) database and used over-expression and siRNA knockdown of Reelin to investigate the role of Reelin in myeloma cell growth. We find that Reelin expression is negatively associated with myeloma prognosis. Reelin promotes myeloma cell proliferation in vitro as well as in vivo. The Warburg effect, evidenced by increased glucose uptake and lactate production, is also enhanced in Reelin-expressing cells...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326700/-in-vitro-investigation-on-the-mechanism-of-cyclooxygenase-2-upregulation-induced-by-spleen-tyrosine-kinase-nuclear-factor-%C3%AE%C2%BAb-signaling-in-cancer-pain-caused-by-oral-cancer-associated-macrophage
#20
Lin Jie, Wang Miao, Ji Yang, Liu Le, Gao Pan, Li Chunjie
OBJECTIVE: This study explores the mechanism of cyclooxygenase-2 (COX-2) upregulation in oral cancers associated with macrophage by using molecular biology techniques and primary culture of murine macrophage. METHODS: Murine macrophage was induced by macrophage colony-stimulating factor (M-CSF) and Cal27 conditional medium (CM). Purity of the macrophage was detected through CD68 immunofluorescence staining. Inhibitors of spleen tyrosine kinase (Syk) and nuclear factor κB (NFκB) were used to inhibit these pathways...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
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