CD40 expression was confirmed in 7 human MM cell lines established from immunogenic primary tumors or metastases , whereas 11 cell lines established from advanced stages were CD40 negative .
cd40 expression was confirmed in 7 human mm cell lines established from immunogenic primary tumors or metastases , whereas 11 cell lines established from advanced stages were cd40 negative .
B-protein_molecule O O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O B-tissue B-tissue I-tissue O B-other_name O O O B-cell_line I-cell_line O O O O O B-protein_molecule O O