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. 1988 Mar;2(3):223-6.

Constitutive c-myc expression enhances the response of murine mast cells to IL-3, but does not eliminate their requirement for growth factors

C R Hume  1 , K H Nocka, V Sorrentino, J S Lee, E Fleissner
Affiliations
  • PMID: 3281092

Constitutive c-myc expression enhances the response of murine mast cells to IL-3, but does not eliminate their requirement for growth factors

C R Hume et al. Oncogene. 1988 Mar.

Abstract

An interleukin-3 (IL-3) dependent mast cell line (MC) was infected with a recombinant retrovirus expressing the proto-oncogene c-myc and the drug selectable marker neo. Cells containing the transcriptionally activated c-myc gene displayed an increased growth rate in liquid culture and a higher cloning efficiency in soft agar when compared to control virus infected cells. All infected cells remained absolutely dependent on IL-3 for growth and were not tumorigenic in nude mice. Similar results were obtained with two additional IL-3 dependent cell lines, the mast cell 32D and the pre-B-cell Ea3. Thus, while constitutive expression of c-myc potentiates the response of mast cells to IL-3, it is not sufficient to eliminate their requirement for growth factors.

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