tokens: Our studies showed that levels of C/EBP epsilon mRNA were markedly increased in NB4 cells ( promyelocytic leukemia line ) , because they were induced by 9-cis retinoic acid ( 9-cis RA ) to differentiate towards granulocytes .
folded_tokens: our studies showed that levels of c/ebp epsilon mrna were markedly increased in nb4 cells ( promyelocytic leukemia line ) , because they were induced by 9-cis retinoic acid ( 9-cis ra ) to differentiate towards granulocytes .
labels: O O O O O O B-RNA_molecule I-RNA_molecule I-RNA_molecule O O O O B-cell_line I-cell_line O B-cell_line I-cell_line I-cell_line O O O O O O O B-other_organic_compound I-other_organic_compound I-other_organic_compound O B-other_organic_compound I-other_organic_compound O O O O B-cell_type O