tokens: Reversible differentiation of human monoblastic leukemia U937 cells by ML-9 , an inhibitor of myosin light chain kinase .
folded_tokens: reversible differentiation of human monoblastic leukemia u937 cells by ml-9 , an inhibitor of myosin light chain kinase .
labels: O O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O B-other_organic_compound O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O