ATRA did not activate nuclear factor kappa B or signal transducer and activator of transcription ( STAT ) activation pathways , suggesting that an alternate mechanism is involved in IRF-1 gene activation .
atra did not activate nuclear factor kappa b or signal transducer and activator of transcription ( stat ) activation pathways , suggesting that an alternate mechanism is involved in irf-1 gene activation .
B-other_organic_compound O O O O O O O O O O O O O O O O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O