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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chen, L. B. Buchanan, J. M. |
| Abstract | The fibrinolytic activity of proteases secreted by chick embryo fibroblasts infected with Rous sarcoma virus was studied by use of a procedure in which a fibrin clot was formed with highly purified fibrinogen and thrombin above the cell layer. This procedure results in the formation of fibrin that is apparently a more suitable substrate for studies on fibrinolysis than is fibrin prepared by other methods. Since neither plasminogen nor serum were included in the assay system in the present studies, the fibrinolytic activity observed cannot be ascribed to the conversion of the plasminogen in serum to plasmin by a plasminogen activator produced by transformed cells. Our procedure, therefore, measures proteolytic activities other than those reported by previous investigators. Maintenance of some of the transformed phenotypes of Rous sarcoma virus transformed chick embryo fibroblasts such as morpholigical change and increased rate of glucose uptake apparently does not depend on the presence of plasminogen in the culture medium. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 3 |
| Volume Number | 72 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1975-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cell Transformation, Neoplastic Fibrinolysis Peptide Hydrolases Pharmacology Plasminogen Animals Avian Sarcoma Viruses Cell Division Drug Effects Cell Line Chick Embryo Deoxyglucose Metabolism Fibrinogen Fibroblasts Peptides Phenotype Thrombin Trypsin Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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