Receptors, Retinoic AcidRetinoid X ReceptorsTretinoinRetinoidsLeukemia, Promyelocytic, AcuteKeratolytic AgentsVitamin AReceptors, Amino AcidIsotretinoinCell DifferentiationReceptors, Lysophosphatidic AcidTetrahydronaphthalenesTranscription FactorsRetinal DehydrogenaseBenzoatesRetinol-Binding Proteins, CellularTumor Cells, CulturedRNA, MessengerMolecular Sequence DataVitamin A DeficiencyRetinol-Binding ProteinsAldehyde OxidoreductasesBase SequenceCarcinoma, EmbryonalReceptors, Thyroid HormoneSignal TransductionTranscription, Genetic