Cancer

Reports outline cancer research from L.J. Meng and colleagues

Published in Cancer Weekly, February 3rd, 2009

"Nucleolar disassembly occurs during mitosis and nucleolar stress, releasing several MDM2-interactive proteins residing in the nucleolus that share the common activity of p53 stabilization. Here, we demonstrate that mobilization of nucleostemin, a nucleolar protein enriched in cancer and stem cells, has the opposite role of stabilizing MDM2 and suppressing p53 functions," scientists in the United States report.

"Our results show that nucleostemin increases the protein stability and nucleoplasmic retention of MDM2, and competes with L23 for MDM2 binding. These activities were significantly elevated when nucleostemin is released into the nucleoplasm by mutations that...

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Source: Cancer Weekly (2009-02-03)

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