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Profile of gene expression in Tax positive (TaxP) cells compared with Tax negative (TaxN) cells.

ABSTRACT: Investigating the effect of Tax protein on the expression of genes in Jurkat cells. Current study will help us to elucidate the differential gene expression profiles of Tax positive Jurkat cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE39601 | GEO | 2012/07/27

SECONDARY ACCESSION(S): PRJNA171366

REPOSITORIES: GEO

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Profile of gene expression in Tax positive (TaxP) cells compared with Tax negative (TaxN) cells.

Project description:Investigating the effect of Tax protein on the expression of genes in Jurkat cells. Current study will help us to elucidate the differential gene expression profiles of Tax positive Jurkat cells. The Tax-positive (TaxP) and Tax negative (TaxN) subline of Jurkat were established. mRNA isolated from TaxN or TaxP cell lines were analyzed using gene array.

2012-07-26 | E-GEOD-39601 | biostudies-arrayexpress

miRNA profiling of Jurkat with stably integrated HTLV1-LTR in the presence of HTLV-1 Tax

Project description:RNA interference (RNAi) is a natural cellular mechanism to silence gene expression and is predominantly mediated by microRNAs (miRNAs) that target messenger RNA. Viruses can manipulate the cellular processes necessary for their replication by targeting the host RNAi machinery. This study explores the effect of human T-cell leukemia virus type 1 (HTLV-1) transactivating protein Tax on the RNAi pathway in the context of a chromosomally integrated viral long terminal repeat (LTR) using a CD4(+) T-cell line, Jurkat. Jurkat cells with stably integrated HTLV1-LTR were transfected with either pCMV-Tax or pCMV. Total miRNA was isolated, labeled and hybridized to the miRNA microarray as described by the manufacturer (Invitrogen). The hybridized slides were then analyzed on a GenePix scanner.

2012-08-08 | E-GEOD-39986 | biostudies-arrayexpress

RNA sequencing for transcriptome comparison between HTLV-1 Tax(-) and Tax(+) cells in Adult T-cell leukemia cell lines (MT-1 and KK-1)

Project description:Initially, ATL cell lines (MT-1 or KK-1) were stably transfected with reporter plasmid for HTLV-1 Tax expression, and single clones were isolated . This reporter in composed of Tax responsive element upstream of d2EGFP fluorescent protein. d2EGFP is expressed upon Tax expression in any individual cell. To compare transcriptomes of Tax(-) and Tax(+) cells, FACS sorting was done for d2EGFP(-) and d2EGFP(+) populations and RNA sequencing was performed.

2018-02-02 | GSE108601 | GEO

Transcriptome analysis of HTLV-1 Tax-transformed T cell line Tesi in absence and presence of Tax

Project description:The Tesi system allows analysis of HTLV-1 Tax's impact on the transcriptome of a human CD4+ T-cell which is not derived from leukemia but directly from normal human lymphocytes. By comparing cells with and without Tax, one can specifically filter for celluar genes that are either activated or repressed in the presence of Tax. Keywords: cell type comparison, Tax

2008-02-14 | GSE10508 | GEO

Expression data from Bovine leukemia virus (BLV) Tax-transfected HeLa cells

2013-01-03 | GSE35823 | GEO

Expression data from Bovine leukemia virus (BLV) Tax-transfected HeLa cells

Project description:Bovine leukemia virus (BLV) Tax is a transcriptional activator of viral replication and a key contributor to oncogenic potential. We previously identified interesting mutant forms of Tax with elevated (TaxD247G) or reduced (TaxS240P) transactivation effects on BLV replication and propagation. In this study, to identify genes that play a role in the cascade of signal events regulated by wild-type and mutant Tax proteins, we used a large-scale host cell gene-profiling approach. HeLa cells transiently transfected with the pCAGGS vector for the control sample was compared with HeLa cells transiently transfected with the pCAGGS-Tax-FLAG vector. These cells were incubated for 30h after transfection and total RNA was isolated.

2013-01-03 | E-GEOD-35823 | biostudies-arrayexpress

miRNA profiling of Jurkat with stably integrated HTLV1-LTR in the presence of HTLV-1 Tax

2012-08-09 | GSE39986 | GEO

Expression data from Human Tax transfected HeLa cell

Project description:Human T cell leukemia virus type 1 (HTLV-1) Tax is potent activator of viral and cellular gene expression that interacts with a number of cellular proteins. In this study, a large-scale host cell signaling events related to cellular proliferation were used to identify genes involved in Tax-mediated cell signaling events related to cellular proliferation and apoptosis. HeLa cell transiently transfected with with pCAGGS vector for control sample was compared with HeLa cell transiently transfected with with pCAGGS-Tax-FLAG vector. These cells were incubated for 30h after transfection and were used for total RNA isolation.

2013-03-21 | E-GEOD-34750 | biostudies-arrayexpress

Expression data from Human Tax transfected HeLa cell

2013-03-21 | GSE34750 | GEO

RNA Expression Data from IL-15-/- and IL-15+/+ TAX-LUC Mouse Tumors

Project description:IL-15 is recognized as a promising candidate for tumor immunotherapy and has been described as both a promoter of cancer and a promoter of anti-cancer immunity. IL-15 was discovered in cells transformed by HTLV-1, the etiologic agent of adult T cell leukemia / lymphoma (ATL) and the human retrovirus that carries the Tax oncogene. We have developed the TAX-LUC mouse model of ATL in which Tax expression drives both malignant transformation and luciferase expression, enabling non-invasive imaging of tumorigenesis in real time. To identify the role of IL-15 in spontaneous development of lymphoma in vivo, an IL-15-/- TAX-LUC strain was developed and examined. The absence of IL-15 resulted in aggressive tumor growth and accelerated mortality and demonstrated that IL-15 was not required for Tax-mediated lymphoma but was essential for anti-tumor immunity. Further analysis revealed a unique transcriptional profile in tumor cells that arise in the absence of IL-15 that included a significant increase in the expression of IL-1α and IL-1α-regulated cytokines. Moreover, anti-IL-1α antibodies and an IL-1 receptor antagonist (Anakinra) were used to interrogate the potential of IL-1α targeted therapies in this model. Taken together, these findings identify IL-15 and IL-1α as therapeutic targets in lymphoma. We used microarrays to compare the gene expression profile of tumors in IL-15-/- TAX-LUC mice to IL-15+/+ TAX-LUC mice RNA was obtained from CD16/32HI and CD16/32LO cells harvested from n=2 IL-15+/+ (control)and n=2 IL-15-/- Tax tumors and was compared to look for alterations in gene expression in malignant and tumor infiltrating cells resulting from loss of IL-15 in vivo

2013-06-11 | E-GEOD-46072 | biostudies-arrayexpress

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