Furthermore , the same cell lines were resistant to cytolytic action of other cytotoxic proteins secreted by LAK cells .
furthermore , the same cell lines were resistant to cytolytic action of other cytotoxic proteins secreted by lak cells .
O O O O B-cell_line I-cell_line O O O B-other_name I-other_name O O B-protein_family_or_group I-protein_family_or_group O O B-cell_line I-cell_line O