the effect of four different retinoids [ retinol , 13-cis-retinoic acid ( ro4-3780 ) , beta-all-trans-retinoic acid , and aromatic retinoic acid ethyl ester ( ro10-9359 ) ] on the cellular proliferation ( cell number ) and biochemical differentiation ( tyrosinase activity ) of a human melanoma cell line ( mirw ) and three subclones was assessed .
C0035339
retinoids
C0040845
retinoic acid