In other neuroblastoma cell lines , such as SK-N-Be ( 2 ) , the lack of PMA induction of differentiation was correlated with the lack of NF-kappa B activation .
in other neuroblastoma cell lines , such as sk-n-be ( 2 ) , the lack of pma induction of differentiation was correlated with the lack of nf-kappa b activation .
O O B-cell_line I-cell_line I-cell_line O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O O B-other_organic_compound O O B-other_name O O O O O O B-protein_molecule I-protein_molecule O O