Reversible abrogation of IL-3 dependence by an inducible H-ras oncogene

Andrejauskas, E. and Moroni, C.. (1989) Reversible abrogation of IL-3 dependence by an inducible H-ras oncogene. The EMBO journal, Vol. 8, H. 9. pp. 2575-2581.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5257904

Downloads: Statistics Overview


Immortalized, interleukin-3 (IL-3)-dependent mouse mast cells (PB-3c) were transfected with a human activated c-H-ras gene under the transcriptional control of the mouse mammary tumor virus long terminal repeat. Addition of increasing amounts of dexamethasone resulted in a concentration-dependent increase in expression of the H-ras oncogene. The elevation of p21 ras protein concentrations was paralleled by progressive growth of the transfectants in the absence of exogenous IL-3, leading to complete abrogation of growth-factor requirement at high p21ras levels. The maintenance of the IL-3-independent state required the continuous expression of the H-ras oncogene, since dexamethasone removal was followed by rapid cell death. Expression of the H-ras oncogene induced PB-3c cells to produce IL-3 and granulocyte-macrophage colony-stimulating factor, suggesting that their IL-3-independent proliferation may be due to an autocrine mechanism.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Growth and Development (Moroni)
03 Faculty of Medicine > Departement Biomedizin > Former Units at DBM > Growth and Development (Moroni)
UniBasel Contributors:Moroni, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:20
Deposited On:22 Mar 2012 13:19

Repository Staff Only: item control page