cells were incubated with all-trans-retinoic acid , 13-cis-retinoic acid or arotinoid ro15-0778 ( 10 ( -10 ) to 10 ( -5 ) m ) , total rna was isolated , and mrna transcripts for odc were analyzed by northern and slot blot hybridizations with a human odc cdna .
C0022265
13-cis-retinoic acid
C0029282
odc