Growth- and Density-Dependent Inhibition of Deoxyglucose Transport in Balb 3T3 Cells and Its Absence in Cells Transformed by Murine Sarcoma Virus
AUTOR(ES)
Bose, Subir K.
RESUMO
The earliest measurable parameter that shows density-dependent inhibition is the uptake of [3H]deoxyglucose by Balb 3T3 cells. The rate decreases even during the exponential phase of growth and reaches a minimum, about 8- to 10-times lower than maximum, as the culture approaches the saturation density. Cells transformed by murine sarcoma virus fail to show either growth-dependent or density-dependent inhibition of deoxyglucose uptake. Treatment with dibutyryl cyclic AMP in the presence of theophylline results in premature cessation of growth and in an arrest in the decline of deoxyglucose transport. Culture in serum-deficient medium also produces rapid inhibition of growth at low cell density, but these cultures exhibit a markedly decreased rate of deoxyglucose uptake.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=433738Documentos Relacionados
- Density-dependent stimulation and inhibition of cell growth by agents that disrupt microtubules
- Natural Selection and Density-Dependent Population Growth
- Cell Density-Dependent Changes of Glycolipid Concentrations in Fibroblasts, and Loss of This Response in Virus-Transformed Cells
- Density-Dependent Selection in Vesicular Stomatitis Virus
- Fitness and Density-Dependent Population Growth in DROSOPHILA MELANOGASTER
