Control of the Initiation of DNA Synthesis in 3T3 Cells: Serum Factors

Abstract
The initiation of DNA synthesis in 3T3 cells can be controlled by a variety of different factors. Cells that are quiescent because of limited serum initiate DNA synthesis in response to the fibroblast growth factor of Gospodarowicz, to insulin, and to dexamethasone, as well as to other, unidentified biological materials. Interactions are seen between the effects of different factors.