All tumor cell lines from the B-cell lineage and a few from the T-cell lineage express Oct-2 .
all tumor cell lines from the b-cell lineage and a few from the t-cell lineage express oct-2 .
O B-cell_line I-cell_line I-cell_line O O B-cell_type I-cell_type O O O O O B-cell_type I-cell_type O B-protein_molecule O