rna levels of the proto-oncogenes c-fos , c-fes and c-fms were undetectable in normal or m1 differentiation inducible ( d+ ) leukemic myeloblasts , and were stably induced upon stimulation of the normal precursors for growth and differentiation , with highest levels at the time when most of the cells had undergone terminal differentiation .
C0085301
proto-oncogenes c-fos
C0007589
differentiation