tokens: ATRA also induced expression of C/EBP epsilon protein in NB4 cells , as shown by Western blotting .
folded_tokens: atra also induced expression of c/ebp epsilon protein in nb4 cells , as shown by western blotting .
labels: B-other_organic_compound O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-cell_line I-cell_line O O O O B-other_name I-other_name O