Amplification and overexpression of the met gene in spontaneously transformed NIH3T3 mouse fibroblasts.

Cooper, C. S. ORCID: https://orcid.org/0000-0003-2013-8042, Tempest, P. R., Beckman, M. P., Heldin, C. H. and Brookes, P. (1986) Amplification and overexpression of the met gene in spontaneously transformed NIH3T3 mouse fibroblasts. The EMBO Journal, 5 (10). pp. 2623-2628. ISSN 0261-4189

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Abstract

We have identified a class of transformed NIH3T3 mouse fibroblasts that arise at low frequencies in transfection experiments with DNA from both neoplastic and non-neoplastic cells and that may result from a low level of spontaneous transformation of NIH3T3 cells. DNA from the transformed cells was unable to transform NIH3T3 cells in a second cycle of transfection and, where examined, the cells showed no evidence for the uptake of the transfected DNA sequences. The results of Southern analyses demonstrate that a mouse homologue of the human met oncogene is amplified 4- to 8-fold in 7 of 10 lines of these transformed NIH3T3 mouse fibroblasts. The cells containing the amplified gene also exhibit at least a 20-fold overexpression of an 8.5-kb mRNA that is homologous to met. To test the hypothesis that met encodes a growth factor receptor, we examined the binding of platelet-derived growth factor, epidermal growth factor, insulin-like growth factor I and gastrin-releasing peptide to transformed and non-transformed NIH3T3 cells. The results show that there is no significant elevation of the binding of these growth factors to cells containing amplification and overexpression of met.

Item Type: Article
Uncontrolled Keywords: neuroscience(all),molecular biology,biochemistry, genetics and molecular biology(all),immunology and microbiology(all) ,/dk/atira/pure/subjectarea/asjc/2800
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
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Depositing User: LivePure Connector
Date Deposited: 18 Jul 2022 17:30
Last Modified: 13 Aug 2022 02:25
URI: https://ueaeprints.uea.ac.uk/id/eprint/86542
DOI: 10.1002/j.1460-2075.1986.tb04543.x

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