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  • Title: Effect of infection with murine recombinant retroviruses containing the v-src oncogene on interleukin 2- and interleukin 3-dependent growth states.
    Author: Watson JD, Eszes M, Overell R, Conlon P, Widmer M, Gillis S.
    Journal: J Immunol; 1987 Jul 01; 139(1):123-9. PubMed ID: 3495596.
    Abstract:
    The cloned murine interleukin 3 (IL 3)-dependent cell lines FD.C/1, 32Dc1-23, and KP3 can each be switched to interleukin 2 (IL 2)-dependent growth states. Replication-defective retroviral vectors have been used to introduce the v-src oncogene into each of these cell lines maintained in either an IL 3- or an IL 2-dependent growth state. These cell lines maintained in an IL 3-dependent growth state were converted to lymphokine-independent growth after infection with v-src. These same cells maintained in an IL 2-dependent growth state and infected with v-src maintained strict lymphokine dependence for growth. Another cloned murine IL 3-dependent cell line, GM, can be switched to a granulocyte-macrophage colony-stimulating factor (GM-CSF)-dependent growth state. GM cells maintained as IL 3- or GM-CSF-dependent cells readily converted to a lymphokine-independent growth state when infected with v-src. These experiments indicate that either there exist differences in the biochemical mechanisms of signal transduction through the IL 3- and IL 2-specific receptors, or developmental processes associated with the switching of cells to an IL 2-dependent growth state influence expression of the v-src gene product. These cell lines offer new ways not only for analyzing biochemical pathways that regulate cell growth, but also for analyzing the control of oncogene expression.
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