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Accession IconGSE16510

Normal lung transcriptome distinguishes mouse lines with different susceptibility to inflammation and to tumorigenesis

Organism Icon Mus musculus
Sample Icon 24 Downloadable Samples
Technology Badge IconIllumina MouseRef-8 v2.0 expression beadchip

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Description
AIRmax and AIRmin mouse lines show a differential lung inflammatory response and differential lung tumor susceptibility after urethane treatment, thus constituting a good genetic model to investigate differences in gene expression profiles related to inflammatory response and lung tumor susceptibility. The transcript profile of ~24,000 known genes was analyzed in normal lung tissue of untreated and urethane-treated AIRmax and AIRmin mice. In lungs of untreated mice, inflammation associated genes involved in pathways such as leukocyte transendothelial migration, cell adhesion and tight junctions were differentially expressed in AIRmax versus AIRmin mice. Moreover, gene expression levels differed significantly in urethane-treated mice even at 21 days after treatment. In AIRmin mice, modulation of expression of genes involved in pathways associated with inflammatory response paralleled the previously observed persistent infiltration of inflammatory cells in the lung of these mice. In conclusion, a specific gene expression profile in normal lung tissue is associated with mouse line susceptibility or resistance to lung tumorigenesis and with different inflammatory response, and urethane treatment causes a long-lasting alteration of the lung gene expression profile that correlates with persistent inflammatory response of AIRmin mice.
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