Loss of the post-translational control of nutrient transport in in vitro and in vivo virus-transformed chicken cells
| Autor: | James F. Perdue |
|---|---|
| Rok vydání: | 1976 |
| Předmět: |
Aminoisobutyric Acids
Physiology Clinical Biochemistry Biological Transport Active Chicken Cells Chick Embryo Deoxyglucose Biology Cycloheximide Avian sarcoma virus chemistry.chemical_compound In vivo Culture Techniques Animals Receptor Uridine Temperature Cell Biology Fibroblasts Molecular biology In vitro Culture Media Blood Cell Transformation Neoplastic Avian Sarcoma Viruses chemistry Mutation Cattle Thymidine |
| Zdroj: | Journal of Cellular Physiology. 89:729-736 |
| ISSN: | 1097-4652 0021-9541 |
| DOI: | 10.1002/jcp.1040890433 |
| Popis: | The removal of serum from the medium of uninfected fibroblasts decreased the rate of uptake of uridine, 2-deoxyglucose, alpha-aminoisobutyrate and thymidine. Its subsequent addition rapidly and reversibly stimulated the uptake of all the nutrients but thymidine and this response was not inhibited by treatment of the cells with cycloheximide. The cycloheximide insensitive, rapid increase in the rate of transport has been designated post-translational control. The nutrient transport systems in chick embryo fibroblasts transformed in vitro with avian sarcoma viruses and virus-induced cultured chicken tumor cells do not respond to serum removal or addition. Two possible levels for the control of nutrient transport, i.e., mitogen receptor occupancy and mitrogen-induced activation of the transport system, are presented to explain these observations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text