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Gene inductions in response to B-DNA transfection in Tbk1 and/or Ikbke-deficient embryonic fibroblasts

ABSTRACT: B-DNA-induced gene expression profile in wild-type, TBK1, IKKi(Ikbke), or TBK1 IKKi doubly deficient embryonic fibroblats; to elucidate how TBK1 and/or IKKi mediates B-DNA-mediated innate immune responses. Keywords: ordered

ORGANISM(S): Mus musculus

PROVIDER: GSE4171 | GEO | 2006/02/04

SECONDARY ACCESSION(S): PRJNA95087

REPOSITORIES: GEO

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Transcription profiling of mouse wild-type, TBK1, IKKi(Ikbke), or TBK1 IKKi doubly deficient embryonic fibroblats to elucidate how TBK1 and/or IKKi mediates B-DNA-mediated innate immune responses

Project description:B-DNA-induced gene expression profile in wild-type, TBK1, IKKi(Ikbke), or TBK1 IKKi doubly deficient embryonic fibroblats; to elucidate how TBK1 and/or IKKi mediates B-DNA-mediated innate immune responses. Experiment Overall Design: Total RNA was extracted from embryonic fibroblats transfected for 4 h with or without poly(dA-dT)-poly(dT-dA), after which cRNA was synthesized. Preparation of cRNA, hybridization and scanning of the microarray were done according to the manufacturer's instructions (Affymetrix). A microarray (MG U74A version 2; Affymetrix) was used with Microarray Suite software (version 5.0; Affymetrix) and GeneSpring software (Silicon Genetics).

2007-12-07 | E-GEOD-4171 | biostudies-arrayexpress

Analysis of the TBK1 interactors from TBK1-deficient A549 cells reconstituted with moTAP TBK1 or empty vector

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In vitro responses of fibroblasts from patients with TBK1 deficiency after TLR3 dependent and independent stimuli

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In vitro responses of fibroblasts from patients with TBK1 deficiency after TLR3 dependent and independent stimuli

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TBK1 Regulates Regeneration of Pancreatic b-cells

Project description:b-cell proliferation induction is one of the most tangible therapeutic strategies to restore b-cell mass. However, this approach has proven challenging due to a remarkable resistance of adult human b-cells to proliferation. Here we aim to unravel the role of a non-canonical IkB kinase TBK1 (TANK-binding kinase 1), which is predominantly expressed in b-cells in mammalian islets, in regulating cell cycle progression. Genetic silencing of TBK1 in INS-1 832/13 rat b-cell line promoted proliferation of b-cells. Proteomic and transcriptome analyses further revealed changes of proteins and genes critical for cell growth and proliferation, including upregulation of ribosomal proteins and cell cycle regulators, upon depletion of TBK1. TBK1 overexpression decreased sensitivity of b-cells to the elevation of cAMP levels and reduced proliferation of b-cells in a manner dependent on the activity of phosphodiesterase 3 (PDE3). Importantly, pharmacological inhibition of TBK1 using (E)3-(3-phenylbenzo[c]isoxazol-5-yl) acrylic acid (PIAA) augmented proliferation and function of rat and human embryonic stem cell (hESC)-derived insulin-producing b-cells under basal conditions. Diabetogenic insults further induced TBK1 expression and accordingly, PIAA protected b-cells against cytokine- and streptozotocin-induced diabetogenic challenges and promoted b-cell replication. Furthermore, PIAA increased proliferation of β-cells in normal and type 2 diabetic human islets with elevation in insulin secretion. Altogether, these data unveil novel and essential function of TBK1 as a key cell-autonomous negative regulator of b-cell replication and presenting PIAA as a valid therapeutic strategy for augmenting proliferation and function of b-cells.

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The Loss of TBK1 Kinase Activity in Motor Neurons or in All Cell Types Differentially Impacts ALS Disease Progression in SOD1 Mice

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B cell intrinsic TBK1 is essential for germinal center formation during infection and vaccination

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