studies were performed on a pure population of hairy cells before and after culture with phorbol ester : 12-o-tetradecanoyl phorbol-13-acetate ( tpa ) , 5 azacytidine ( 5 aza ) , sodium butyrate ( na-bu ) , and phytohemagglutinin ( pha-p ) .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl phorbol-13-acetate