Drug-induced differentiation of a rat glioma in vitro: II. the expression of S-100, a glial specific protein and steroid sulfatase
| Autor: | A.S. Perumal, M.N. Goldstein, Blake W. Moore, A.R. Kolber |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
DNA Replication
Time Factors Cell division Biology In Vitro Techniques Amethopterin Glioma medicine Steroid sulfatase Animals Molecular Biology Cells Cultured chemistry.chemical_classification Cell growth General Neuroscience medicine.disease Molecular biology In vitro Neoplasm Proteins Rats Enzyme Methotrexate Biochemistry chemistry Bromodeoxyuridine Steroids Neurology (clinical) Subculture (biology) Sulfatases Cell Division Developmental Biology |
| Zdroj: | Brain research. 143(3) |
| ISSN: | 0006-8993 |
| Popis: | Amethopterin and 5-bromodeoxyuridine (BUdR) were used to induce morphological changes in cloned rat glioma (C6). The expression of S-100 protein, an acidic protein localized in glial cells, and steroid sulfatase, an ubiquitously distributed enzyme found in high concentration in glial cells, were followed during cell growth, from subculture to well into the stationary phase of control and drug-treated cultures. Amethopterin and BUdR differed in their effects on glioma morphology and in the expression of the biochemical parameters. Amethopterin coordinately stimulated both the production of S-100 protein and steroid sulfatase activity when cell division was inhibited during early logarithmic growth phase. BUdR stimulated steroid sulfatase activity but repressed production of S-100 protein. The results are discussed with respect to the mechanism of regulation of the differentiated state of tumor cells. |
| Databáze: | OpenAIRE |
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