| Autor: |
Stavrovskaia AA, Stromskaia TP, Brodskaia RM, Stoĭka RS, Sushel'nitskiĭ SI, Garas'ko SI, Shafranskaia GS |
| Jazyk: |
ruština |
| Zdroj: |
Eksperimental'naia onkologiia [Eksp Onkol] 1990; Vol. 12 (2), pp. 43-6. |
| Abstrakt: |
It was shown previously that cells of sarcoma PS-103 induced in mouse by subcutaneous transplantation of plastic film produce growth-stimulating activity. In this communication clone 3 sb, isolated from sarcoma PS-103, was studied. Growth factor produced by the cells of this clone stimulated proliferation of quasi-normal (3T3, NRK) cells and transformed cells both in monolayer and in semi-solid medium. It was shown by gel filtration chromatography that the main growth-stimulating activity migrated with the protein fraction m.m. 10-15 kDa. The addition of this growth factor to the culture medium significantly (90%) inhibited 125I-EGF (epidermal growth factor) binding by A-431 cells. These data suggest that the growth factor produced by the studied tumor cells is transforming growth factor alpha. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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