Transformation of mouse bone marrow cells by transfection with a human oncogene related to c-myc is associated with the endogenous production of macrophage colony stimulating factor 1

J Cell Physiol. 1985 Dec;125(3):403-12. doi: 10.1002/jcp.1041250307.


We recently derived a series of transformed cell lines by transfecting mouse bone marrow cells highly enriched for macrophage progenitors with a newly described human gene, R-myc, which has homology to the c-myc oncogene. In this report, we show that these lines share some features characteristic of cells of the mononuclear phagocyte lineage. Specifically, all cell lines had macrophage- or monocytelike morphology, contained nonspecific esterase, were phagocytic for latex beads, secreted lysozyme, bore the Mac-1 antigen, and contained a minority of cells with Fc receptors. However, only a single monocytelike clone had appreciable numbers of cells which bore complement receptor 1, and none were phagocytic for antibody or complement-coated particles, or constitutively secreted Interleukin-1. All these cell lines secreted a growth factor capable of supporting the in vitro proliferation of bone marrow macrophages. Radioimmunoassay and receptor binding studies indicate that this factor is colony stimulating factor 1.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Bone Marrow Cells*
  • Cell Differentiation / drug effects*
  • Cell Division / drug effects
  • Cell Line
  • Colony-Forming Units Assay
  • Colony-Stimulating Factors / biosynthesis*
  • Colony-Stimulating Factors / physiology
  • Female
  • Macrophages / classification
  • Macrophages / cytology
  • Macrophages / metabolism*
  • Male
  • Mice
  • Mice, Inbred AKR
  • Mice, Inbred BALB C
  • Mice, Inbred C3H
  • Mice, Nude
  • Oncogenes*
  • Phenotype
  • Transfection


  • Colony-Stimulating Factors