the pattern of protein phosphorylation induced by phorbol-12-myristate-13-acetate ( pma ) was analyzed by two-dimensional gel electrophoresis in human hl-60 leukemia cells , which are susceptible to induction of cell differentiation by pma , and in cells from an hl-60 cell variant designated r-94 that are resistant to such an induction .
C1516343
induction
C0007634
cells