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  • Title: Overexpression of a dominant negative type II bone morphogenetic protein receptor inhibits the growth of human breast cancer cells.
    Author: Pouliot F, Blais A, Labrie C.
    Journal: Cancer Res; 2003 Jan 15; 63(2):277-81. PubMed ID: 12543773.
    Abstract:
    Bone morphogenetic proteins (BMPs) exert cell type-specific effects on cell proliferation. To clarify the role of the BMP pathway in human breast cancer cells, we used a dominant negative strategy with a truncated human type II BMP receptor (DN-BMPRII; amino acid 1-172) fused to the NH2 terminus of enhanced green fluorescent protein. Transient overexpression of DN-BMPRII interfered with BMP-2-induced Smad1 transcriptional activity and caused cells to accumulate in G1. Stable cell lines that constitutively overexpressed DN-BMPRII were resistant to BMP-2-induced Smad1 phosphorylation and proliferated much more slowly than control stable cell lines. These results suggest that BMPs interacting with type II BMP receptors contribute to the proliferation and/or survival of human breast cancer cells.
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