Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA117159 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Identification of genes that regulated by IRF4 in human cutaneous T cell lymphoma HuT-102 cells
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Project description:We previously reported that human T cell lymphotropic virus 1 (HTLV-1) Tax oncoprotein constitutively activates TAK1. Here, we established Tax-positive HuT-102 cells stably downregulated TAK1 expression by short-hairpin RNA (HuT-shTAK1 cells), and investigated the physiological function of TAK1. Microarray analysis demonstrated that several interferon (IFN)-inducible genes including chemokines such as CXCL10 and CCL5 were significantly downregulated in HuT-shTAK1 cells. In contrast, Tax-mediated constitutive activation of NF-kB was intact in HuT-shTAK1 cells. IRF3, a critical transcription factor in innate immunity to viral infection, was constitutively activated in a Tax-dependent manner. Activation of IRF3 and IRF3-dependent gene expression were dependent on TAK1 and TBK1. On the other hand, IRF4, another IRF family of transcription factor overexpressed in a Tax-independent manner, negatively regulated the TAK1-dependent IRF3 transcriptional activity. Together, HTLV-1 manipulates IFN signaling by regulating both positive and negative IRFs. HuT-102 cells, a human cutaneous T cell lymphoma, were stably transfected with shRNA expression vectors against human MAP3K7 (TAK1) or firefly luciferase (Luc). The cells were maintained in media containing 0.5 mg/ml G418. For the experiment, the cells were incubated in media without G418 for 36 h at 37M-BM-0C. Total RNA samples were prepared from the cells. Gene expression was analyzed by an Affymetrix GeneChipM-BM-. system with a Human Genome U133-plus 2.0 array for analysis of over 47,000 transcripts. Sample preparation for array hybridization was carried out as described in the manufacturerM-bM-^@M-^Ys instructions. Two replicates per sample type.
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Project description:The microarray analysis showed an interesting up-regulation in the set of genes controlling the development of Th1, mainly IFN-gamma, and other type 1 interferon response genes including CXCL10 in IRF4 knocked-down HuT-102 cells. HuT-102 cells, a human cutaneous T cell lymphoma, were transiently transfected with siRNAs against human IRF4 or firefly luciferase. Cells were incubated for 60 h at 37 centigrade. Total RNA samples were prepared from the cells. Gene expression was analyzed by an Affymetrix GeneChip® system with a Human Genome U133-plus 2.0 array for analysis of over 47,000 transcripts. Sample preparation for array hybridization was carried out as described in the manufacturerâs instructions.
2010-06-08 | E-GEOD-22036 | biostudies-arrayexpress
Project description:Identification of genes regulated during passaging of human osteosarcoma cell lines
| PRJNA277710 | ENA
Project description:We previously reported that human T cell lymphotropic virus 1 (HTLV-1) Tax oncoprotein constitutively activates TAK1. Here, we established Tax-positive HuT-102 cells stably downregulated TAK1 expression by short-hairpin RNA (HuT-shTAK1 cells), and investigated the physiological function of TAK1. Microarray analysis demonstrated that several interferon (IFN)-inducible genes including chemokines such as CXCL10 and CCL5 were significantly downregulated in HuT-shTAK1 cells. In contrast, Tax-mediated constitutive activation of NF-kB was intact in HuT-shTAK1 cells. IRF3, a critical transcription factor in innate immunity to viral infection, was constitutively activated in a Tax-dependent manner. Activation of IRF3 and IRF3-dependent gene expression were dependent on TAK1 and TBK1. On the other hand, IRF4, another IRF family of transcription factor overexpressed in a Tax-independent manner, negatively regulated the TAK1-dependent IRF3 transcriptional activity. Together, HTLV-1 manipulates IFN signaling by regulating both positive and negative IRFs.
2009-08-18 | GSE16219 | GEO
Project description:The genes regulated by SOX11 in mantle cell lymphoma
| PRJNA133969 | ENA