The Advances in Cancer Research series provides invaluable information on the exciting and fast-moving field of cancer research. This volume presents outstanding and original reviews on a variety of topics, including HAMLET and tumor cells; survivin and apoptosis control; retroviral insertional mutagenesis; aberrant ubiquitin-mediated proteolysis of cell cycle regulatory proteins and oncogenesis; and epigenetic variability and the evolution of human cancer. The Advances in Cancer Research series provides invaluable information on the exciting and fast-moving field of cancer research. This volume presents outstanding and original reviews on a variety of topics, including HAMLET and tumor cells; survivin and apoptosis control; retroviral insertional mutagenesis; aberrant ubiquitin-mediated proteolysis of cell cycle regulatory proteins and oncogenesis; and epigenetic variability and the evolution of human cancer.