tokens: NB4 cells pulse-exposed ( 30 minutes ) to all-trans retinoic acid ( ATRA ) , washed , and cultured ( 3 days ) with either dimethylsulfoxide ( DMSO ) or hexamethylene bisacetamide ( HMBA ) had a prominent increase in levels of C/EBP epsilon mRNA and an increase in granulocytic differentiation , but exposure to either DMSO or HMBA alone had no effect on base levels of C/EBP epsilon and did not induce differentiation .
folded_tokens: nb4 cells pulse-exposed ( 30 minutes ) to all-trans retinoic acid ( atra ) , washed , and cultured ( 3 days ) with either dimethylsulfoxide ( dmso ) or hexamethylene bisacetamide ( hmba ) had a prominent increase in levels of c/ebp epsilon mrna and an increase in granulocytic differentiation , but exposure to either dmso or hmba alone had no effect on base levels of c/ebp epsilon and did not induce differentiation .
labels: B-cell_line I-cell_line O O O O O O B-other_organic_compound I-other_organic_compound I-other_organic_compound O B-other_organic_compound O O O O O O O O O O O O B-other_organic_compound O B-other_organic_compound O O B-other_organic_compound I-other_organic_compound O B-other_organic_compound O O O O O O O O B-RNA_molecule I-RNA_molecule I-RNA_molecule O O O O B-other_name I-other_name O O O O O B-other_organic_compound O B-other_organic_compound O O O O O O O O O O O O O O O O