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Expression data from CD4-positive HTLV-positive cell lines and from CD4-positive HTLV-negative primary cells.

ABSTRACT: We used microarrays to compare the global programme of gene expression in HTLV-positive, ATL-derived and HTLV-positive in vitro-transformed cell lines with that of uninfected primary CD4 T cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE17718 | GEO | 2009/08/20

SECONDARY ACCESSION(S): PRJNA118429

REPOSITORIES: GEO

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Expression data from CD4-positive HTLV-positive cell lines and from CD4-positive HTLV-negative primary cells.

Project description:We used microarrays to compare the global programme of gene expression in HTLV-positive, ATL-derived and HTLV-positive in vitro-transformed cell lines with that of uninfected primary CD4 T cells. Cells were harvested one day after splitting, in case of primary T cells, cells were harvested after reaching a postmitotic state.

2009-08-20 | E-GEOD-17718 | biostudies-arrayexpress

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Project description:HTLV-1 infected individuals stay as carriers for their lifetimes, while the rest of 5% are killed by ATL. ATL leukemogenesis is a complex process involving accumulation of multiple genetic abnormalities in HTLV-1 infected cells. To clarify genetic events underlying ATL leukemogenesis, we conducted comprehensive gene expression profiling in 52 ATL patients and in 21 healthy volunteers. Total RNA samples from PBMC of ATL patients (mostly HTLV-1 inefcted CD4+ T-cells) and from CD4+ T-cells from healthy donors were subjected to Cy-3 labeling followed by human whole genome gene expression microarray analyses.

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miRNA expression profiling in Adult T-cell Leukemia (ATL) cells and in Normal CD4+ T-cells

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Gene expression profiling in patients infected with HTLV-1: Identification of ATL and HAM/TSP-specific genetic profiles

Project description:We examined the gene expression profiles of CD4+ T-cells isolated from 7 ATL, 12 HAM/TSP and 11 AC (asymptomatic carriers) to identify gene signatures that may be characteristic for these particular diseases. Using gene expression arrays, we identified ~ 1039 immune-related genes that were differentially expressed in CD4+ T cells; using stringent exclusion criteria, a 122 gene signature could be divided into 3 groups: I) ATL-specific; II) common; and III) HAM/TSP-specific markers To better understand the genetic differences between HTLV-1-associated diseases, we examined the gene expression profile of T lymphocytes from patients either suffering from ATL, HAM/TSP or carrying the HTLV-1 virus without any symptoms. Microarray experiments were performed using the human ImmuneArray cDNA array (UHN Microarray Center, University of Toronto). We used the Stratagene Universal Control, labelled Cy5 for all samples in a competitive hybridization.

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Human gene expression microarray analysis in CEM cells overexpressing HTLV-1 Rex

Project description:HTLV-1 is an onco-retrovirus that infects human T cells and causes poor prognosis leukaemia/lymphoma, ATL. The viral RNA binding protein, Rex, intervenes in host cell regulation of gene expression, splicing and translation mechanisms to promote viral particle replication, but the detailed mechanism of its function has not been elucidated. In the present study, we stably overexpressed HTLV-1 Rex in the human T-cell-derived cell line, CEM, and investigated effect of Rex on gene expression profiles in CEM cells by gene expression microarray analysis.

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Whole genome gene expression profiling in CD4+ T-cells, FACS-sorted based on CADM1/CD7 expression levels, in Adult T-cell Leukemia-lymphoma (ATL) patients, HTLV-1 carriers, and in healthy volunteers.

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