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Expression of SUDHL-1 cell line treated by ALK inhibitors

ABSTRACT: In this study we compared the effects of ALK inhibitor on the gene expression, activation of cell signaling pathways, and functional properties of cells derived from a patient with Anaplastic Large Cell Lymphoma. we used microarrays to map the genome-wide gene expression patterns in ALK+TCL cells in response to ALK inhibition.

ORGANISM(S): Homo sapiens

PROVIDER: GSE50803 | GEO | 2013/10/31

SECONDARY ACCESSION(S): PRJNA219056

REPOSITORIES: GEO

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Expression of SUDHL-1 cell line treated by ALK inhibitors

Project description:In this study we compared the effects of ALK inhibitor on the gene expression, activation of cell signaling pathways, and functional properties of cells derived from a patient with Anaplastic Large Cell Lymphoma. we used microarrays to map the genome-wide gene expression patterns in ALK+TCL cells in response to ALK inhibition. The ALK+TCL Sudhl-1 cell line was treated in triplicates with the ALK inhibitor, CEP-14083, or the compound's solvent for 6 h. The isolated RNA was reverse-transcribed, biotin-labeled, and hybridized to the U133 Plus 2.0 array chips (Affymetrix). Microarray data were normalized using the MAS5 algorithm and analyzed using Partek GS (Partek).

2013-10-31 | E-GEOD-50803 | biostudies-arrayexpress

ALK effection analysis on T-lymphocyte cells

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NPM-ALK metabolic regulation

Project description:The mechanisms underlying the pathogenesis of the constitutively active tyrosine kinase nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) expressing anaplastic large cell lymphoma are not completely understood. Here we show using an integrated phosphoproteomic and metabolomic strategy that NPM-ALK induces a metabolic shift toward aerobic glycolysis, increased lactate production, and biomass production. The metabolic shift is mediated through the anaplastic lymphoma kinase (ALK) phosphorylation of the tumor-specific isoform of pyruvate kinase (PKM2) at Y105, resulting in decreased enzymatic activity. Small molecule activation of PKM2 or expression of Y105F PKM2 mutant leads to reversal of the metabolic switch with increased oxidative phosphorylation and reduced lactate production coincident with increased cell death, decreased colony formation, and reduced tumor growth in an in vivo xenograft model. This study provides comprehensive profiling of the phosphoproteomic and metabolomic consequences of NPM-ALK expression and reveals a novel role of ALK in the regulation of multiple components of cellular metabolism. Our studies show that PKM2 is a novel substrate of ALK and plays a critical role in mediating the metabolic shift toward biomass production and tumorigenesis. Research is published: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739039/

2013-09-24 | ST000016 | MetabolomicsWorkbench

Gene expression profiles of Glioblastoma stem cells in which ALK or pleiotrophin expression was suppressed.

Project description:Cancer stem cells are believed to be responsible for tumor initiation and development. Much current research on human brain tumors is focused on the stem-like properties of glioblastoma stem cells. Anaplastic lymphoma kinase (ALK) and its ligand pleiotrophin are required for maintaining the stem-like properties and tumorigenicity of glioblastoma stem cells. Human glioblastoma stem cells (GB2) were infected with a lentivirus expressing an shRNA targeting ALK or pleiotrophin.

2011-09-30 | E-GEOD-32482 | biostudies-arrayexpress

Alteration of treatment of the ALK inhibitor in ALK-amplified neuroblastoma

Project description:Anaplastic Lymphoma Kinase (ALK) most frequently mutated in neuroblastoma (NB) and is atractive molecular target for therapy. However, efficacy of the ALK inhibitor against ALK-amplified NB is unclear. To elucidate genetic alterations induced by treatment of the ALK inhibitor, we compared expression profile between ALK inhibitor-treated and DMSO-treated NB39nu cells using Agilent SurePrint G3 Human GE 8x60K V2 Microarray Kit

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The DNA-helicase HELLS drives ALK- ALCL proliferation by the transcriptional control of a cytokinesis-related program

Project description:Deregulation of chromatin modifiers, including DNA helicases, are emerging as one of the mechanism underlying the transformation of anaplastic lymphoma kinase negative (ALK−) anaplastic large cell lymphoma (ALCL). We recently identified the DNA helicase HELLS as central for proficient ALK-ALCL proliferation and progression. By performing RNA-sequencing profiling coupled with bioinformatic prediction, we demonstrated that HELLS contributes to an appropriate cytokinesis via the transcriptional regulation of genes involved in cleavage furrow regulation in ALK- anaplastic large cell lymphoma

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Gene expression profiles of Glioblastoma stem cells in which ALK or pleiotrophin expression was suppressed.

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ALK–transformed mature T lymphocytes restores early thymus progenitor features

Project description:Anaplastic large cell lymphoma (ALCL) is a mature T cell neoplasm that often expresses the CD4+ T cell surface marker. (It usually harbors the t(2;5) (p23;q35) translocation, leading to the ectopic expression of NPM-ALK, a chimeric tyrosine kinase. We demonstrated that in vitro transduction of normal human CD4+ T lymphocytes with NPM-ALK results in their immortalization and malignant transformation. The tumor cells displayed morphological and immunophenotypical characteristics of primary patient–derived anaplastic large cell lymphomas. Cell growth, proliferation, and survival were strictly dependent on NPM-ALK activity and include activation of the key factors STAT3 and DNMT1 and expression of CD30 (the hallmark of anaplastic large-cell lymphoma). Implantation of NPM-ALK–transformed CD4+ T lymphocytes into immunodeficient mice resulted in the formation of tumors indistinguishable from patients’ anaplastic large cell lymphomas. Integration of “Omic” data revealed that NPM-ALK–transformed CD4+ T lymphocytes and primary NPM-ALK+ ALCL biopsies share similarities with early T cell precursors. Of note, these NPM-ALK+ lymphoma cells overexpress stem cell regulators (OCT4, SOX2, and NANOG) and HIF2A, which is known to affect hematopoietic precursor differentiation and NPM-ALK+ cell growth. Altogether, for the first time our findings suggest that NPM-ALK could restore progenitor-like features in mature CD30+ peripheral CD4+ T cells, in keeping with a thymic progenitor-like pattern.

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Analysis of the genomic landscape in ALK+ NSCLC patients identifies novel aberrations associated with clinical outcomes

Project description:Expression data of primary and metastasic tissues from ALK+ NSCLC patients (Anaplastic lymphoma kinase fusion positive non-small cell lung carcinoma)

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Effects of ALK inhibitory treatment with alectinib in glioblastoma cells

Project description:Anaplastic lymphoma kinase (ALK) is expressed in around 60% of glioblastomas and conveys tumorigenic function. Therefore, ALK inhibitory strategies with alectinib were investigated in glioblastoma cells. We demonstrated that alectinib inhibited proliferation and clonogenicity of ALK expressing glioblastoma initiating cells, whereas cells without ALK expression or after ALK depletion via knockdown showed primary resistance against alectinib. The aim of this analysis was to investigate molecular mechanisms of alectinib mediated treatment effects in the ALK expressing S24 cells, which represent a primary glioblastoma cell culture, and after knockdown of ALK.

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