Control of the Initiation of DNA Synthesis in 3T3 Cells: Low-Molecular-Weight Nutrients
AUTOR(ES)
Holley, Robert W.
RESUMO
Sparse 3T3 cells, in excess serum, become quiescent in the early G1 (or G0) phase of the cell cycle if the cells are cultured in low concentrations of amino acids, glucose, or phosphate ion. These quiescent cells then initiate DNA synthesis if the concentration of the limiting nutrient is increased. In normal medium, DNA synthesis in the same 3T3 cell line is controlled by serum factors. The results demonstrate the complexity of the control by external agents of DNA synthesis in these “normal,” density-dependent cells.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=388594Documentos Relacionados
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