Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Real-time quantitative PCR analysis of DZNep treated B cell Lymphoma cell line Jeko-1

ABSTRACT: Jeko-1 cells were culture with or without PRC2 inhibitor 3-deazaneplanocin A (DZNep)(1uM) for 72hrs. We used TaqManM-BM-. Human MicroRNA Array to quantitate miRNA expression profile regulated by PRC2. qPCR miRNA expression profiling.

ORGANISM(S): Homo sapiens

SUBMITTER: jianguo tao

PROVIDER: E-GEOD-40019 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Coordinated silencing of MYC-mediated miR-29 by HDAC3 and EZH2 as a therapeutic target of histone modification in aggressive B-Cell lymphomas.

Zhang Xinwei X Zhao Xiaohong X Fiskus Warren W Lin Jianhong J Lwin Tint T Rao Rekha R Zhang Yizhuo Y Chan John C JC Fu Kai K Marquez Victor E VE Chen-Kiang Selina S Moscinski Lynn C LC Seto Edward E Dalton William S WS Wright Kenneth L KL Sotomayor Eduardo E Bhalla Kapil K Tao Jianguo J

Cancer cell 20121001 4

We investigated the transcriptional and epigenetic repression of miR-29 by MYC, HDAC3, and EZH2 in mantle cell lymphoma and other MYC-associated lymphomas. We demonstrate that miR-29 is repressed by MYC through a corepressor complex with HDAC3 and EZH2. MYC contributes to EZH2 upregulation via repression of the EZH2 targeting miR-26a, and EZH2 induces MYC via inhibition of the MYC targeting miR-494 to create positive feedback. Combined inhibition of HDAC3 and EZH2 cooperatively disrupted the MYC ...[more]

PMID: 23079660

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Project description:We investigated the roles of IRF-3 and IRF-7 in innate antiviral immunity against dengue virus (DENV). Double-deficient Irf-3-/-7-/- mice infected with the DENV2 strain S221 possessed 1,000-150,000 fold higher levels of viral RNA than wild-type and single-deficient mice 24 hours after infection; however, they remained resistant to lethal infection. IFN-α/β was induced similarly in wild-type and Irf-3-/- mice post DENV infection, whereas in the Irf-7-/- and Irf-3-/-7-/- mice, significantly low levels of IFN-α/β expression was observed within 24 hours post-infection. IFN-stimulated gene (ISG) induction was also delayed in Irf-3-/-7-/- mice relative to wild-type and single-deficient mice. In particular, Cxcl10 and Ifnα2 were rapidly induced independently of both IRF-3 and IRF-7 in the Irf-3-/-7-/- mice with DENV infection. Higher levels of serum IFN-γ, IL-6, CXCL10, IL-8, IL-12 p70, and TNF were also observed in Irf-3-/-7-/- mice 24 hours after infection, at which time point viral titers peaked and started to be cleared. Antibody-mediated blockade experiments revealed that IFN-γ, CXCL10, and CXCR3 function to restrict DENV replication in Irf-3-/-7-/- mice. Additionally, the ISGs Cxcl10, Ifit1, Ifit3, and Mx2 can be induced via an IRF-3- and IRF-7-independent pathway that does not involve IFN-γ signaling for protection against DENV. Collectively, these results demonstrate that IRF-3 and IRF-7 are redundant, albeit IRF-7 plays a more important role than IRF-3 in inducing the initial IFN-α/β response; only the combined actions of IRF-3 and IRF-7 are necessary for efficient control of early DENV infection; and the late, IRF-3- and IRF-7-independent pathway contributes to anti-DENV immunity. To identify the antiviral genes that are controlled by IRF-3 and IRF-7 signaling during DENV infection, we examined a panel of ISG expression in the spleens of wild-type, Irf-3-/-, Irf-7-/- and Irf-3-/-7-/- mice at 12 or 24 hours after DENV infection using a quantitative PCR array kit. The fold changes in expression of 55 genes from infected mice were normalized to that of strain-matched naïve mice.

Dataset Information

Real-time quantitative PCR analysis of DZNep treated B cell Lymphoma cell line Jeko-1

Publications

Coordinated silencing of MYC-mediated miR-29 by HDAC3 and EZH2 as a therapeutic target of histone modification in aggressive B-Cell lymphomas.

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