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DNA Cell Biol. 2005 Jul;24(7):432-7.

Differentially expressed genes in endothelial differentiation.

Author information

1
Center for Molecular Medicine, Jichi Medical School, Tochigi, Japan. hishiiAms.jichi.ac.jp

Abstract

By screening differentially expressed genes in mouse embryonic stem (ES) cells by subtractive hybridization, we identified three conserved but uncharacterized genes encoding bromodomain containing 3 (BRD3), protein lysine methyltransferase (PLM), and kelch domain containing 2 (KLHDC2), which were downregulated during endothelial differentiation. An RNA blot study showed that these genes were markedly expressed in undifferentiated ES cells, whereas the expression was reduced upon endothelial differentiation; a study of mouse endothelium showed a significant reduction in the expression of BRD3. A study of human BRD3, located on chromosome 9 at q34, a region susceptible to genomic rearrangement, showed an altered expression in 4 of 12 patients with bladder cancer, compared with adjacent noncancerous tissues. Taken together with the result of siRNA inhibition showing the positive regulation of cell proliferation by BRD3, it is suggested that this molecule plays a role in allowing cells to enter the proliferative phase of the angiogenic process.

PMID:
16008511
DOI:
10.1089/dna.2005.24.432
[Indexed for MEDLINE]

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