Progress in Cell Cycle Research

Part of the series Progress in Cell Cycle Research pp 171-191

The role of cyclin E in cell proliferation, development and cancer

  • Khandan KeyomarsiAffiliated withWadsworth Center, New York State Department of Health
  • , Thaddeus W. HerliczekAffiliated withWadsworth Center, New York State Department of Health

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Normal cell proliferation is under strict regulation governed by checkpoints located at distinct points in the cell cycle. The deregulation of these checkpoint events and the molecules associated with them may transform a normal cell into a cancer cell. One of these checkpoints whose deregulation results in transformation occurs at the Restriction point, near the G1/S boundary. The periodic appearance of one of the recently identified regulatory cyclins, cyclin E, coincides precisely with the timing of the Restriction point. The deregulation in the expression and activity of cyclin E has been associated with a number of cancers and is thought to be involved in the process of oncogenesis. In this chapter, we summarise the current knowledge on the regulation and apparent function of cyclin E in normal proliferating cells and in developing tissue and alterations of these processes in cancer.