TY - JOUR
T1 - Selective immortalization of murine macrophages from fresh bone marrow by a raf/myc recombinant murine retrovirus
AU - Blasi, Elisabetta
AU - Mathieson, Bonnie J.
AU - Varesio, Luigi
AU - Cleveland, John L.
AU - Borchert, Patricia A.
AU - Rapp, Ulf R.
PY - 1985
Y1 - 1985
N2 - Myeloid precursors can be grown in vitro in the presence of specific growth factors; however, their expansion is limited by a competing process of terminal differentiation1,2. Proto-oncogenes seem to be involved in cellular proliferation and/or differentiation and may also play a role in the myelopoietic process3,4. Murine myeloid precursors which are grown in vitro with growth factors respond with augmented self-renewal upon infection with recombinant retroviruses carrying the v-myc or v-src oncogenes 5-11, suggesting a synergism or complementation between some viral oncogenes (v-onc) and certain growth factors. We now show that the combination of two v-onc genes (raf and myc) induces the selective proliferation of monocytic cells from fresh murine bone marrow (BM) in the absence of a specific growth factor supplement. Depending on the culture conditions these cells can either differentiate and cease to proliferate or grow continuously, thus mimicking the alternative pathways that can be followed by committed BM stem cells in vivo.
AB - Myeloid precursors can be grown in vitro in the presence of specific growth factors; however, their expansion is limited by a competing process of terminal differentiation1,2. Proto-oncogenes seem to be involved in cellular proliferation and/or differentiation and may also play a role in the myelopoietic process3,4. Murine myeloid precursors which are grown in vitro with growth factors respond with augmented self-renewal upon infection with recombinant retroviruses carrying the v-myc or v-src oncogenes 5-11, suggesting a synergism or complementation between some viral oncogenes (v-onc) and certain growth factors. We now show that the combination of two v-onc genes (raf and myc) induces the selective proliferation of monocytic cells from fresh murine bone marrow (BM) in the absence of a specific growth factor supplement. Depending on the culture conditions these cells can either differentiate and cease to proliferate or grow continuously, thus mimicking the alternative pathways that can be followed by committed BM stem cells in vivo.
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U2 - 10.1038/318667a0
DO - 10.1038/318667a0
M3 - Article
C2 - 4079980
AN - SCOPUS:0022401274
VL - 318
SP - 667
EP - 670
JO - Nature
JF - Nature
SN - 0028-0836
IS - 6047
ER -