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accession-icon GSE15694
Lenses expression profile of DBL oncogene transgenic mice
  • organism-icon Mus musculus
  • sample-icon 18 Downloadable Samples
  • Technology Badge Icon Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)

Description

The Dbl family of proteins represents a large group of proto-oncogenes involved in cell growth regulation. Alterations of the normal function of these proteins lead to pathological processes such as developmental disorders and neoplastic transformation. We have generated transgenic mice introducing the onco-Dbl cDNA sequences linked to the metallothionein promoter into the germ line of FVB mice and found that onco-Dbl expression affected proliferation, migration and differentiation of lens epithelial cells. We used high density oligonucleotide microarray to define the transcriptional profile induced by Dbl in the lenses of transgenic mice and observed modulation of genes encoding proteins promoting epithelial-mesenchymal transition (EMT). Moreover, genes encoding proteins involved in the positive regulation of apoptosis were markedly down regulated while anti-apoptotic genes were strongly up-regulated. Finally, several genes encoding proteins involved in the process of angiogenesis were up-regulated. These observations were validated by histological and immunohistochemical examination of the transgenic lenses, where vascularization can be readily observed. Thus, onco-Dbl expression in mouse lenses induces disruption of the lens architecture, epithelial cell proliferation, EMT, evasion from cell death, and aberrant angiogenesis.

Publication Title

Induction of epithelial mesenchimal transition and vasculogenesis in the lenses of Dbl oncogene transgenic mice.

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Cite refine.bio

Casey S. Greene, Dongbo Hu, Richard W. W. Jones, Stephanie Liu, David S. Mejia, Rob Patro, Stephen R. Piccolo, Ariel Rodriguez Romero, Hirak Sarkar, Candace L. Savonen, Jaclyn N. Taroni, William E. Vauclain, Deepashree Venkatesh Prasad, Kurt G. Wheeler. refine.bio: a resource of uniformly processed publicly available gene expression datasets.
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Note that the contributor list is in alphabetical order as we prepare a manuscript for submission.

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