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Forever young: Differentiation blocked in tumor stem cells
Date:1/7/2008

through a polycomb repressive complex. BMPs are known to mediate proliferation, differentiation and apoptosis in NSCs, depending on the stage of cell development and the local environment. Importantly, forced expression of the silenced BMPR1B restored normal differentiation capacity to the isolated TICs, halting further cell division and inducing terminal differentiation.

Our research provides an example of a temporally deregulated and aberrantly fixed normal stem cell developmental block to differentiation contributing to the pathogenesis of a human tumor. Not only will such insights pave the way for a more thorough understanding of tumor stem cell biology, but they also identify BMPR1B as a promising molecular target and open the potential for targeted therapeutic approaches for agents that can induce terminal differentiation of tumor stem cells, offers Dr. Fine.


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Contact: Cathleen Genova
cgenova@cell.com
617-397-2802
Cell Press
Source:Eurekalert

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