CD40 ligation leads to B cell activation events such as proliferation , Ig secretion , isotype switching , and up-regulation of cell surface molecules , as well as the generation of memory B cells .
cd40 ligation leads to b cell activation events such as proliferation , ig secretion , isotype switching , and up-regulation of cell surface molecules , as well as the generation of memory b cells .
B-protein_molecule O O O B-other_name I-other_name I-other_name I-other_name O O B-other_name O B-other_name I-other_name O B-other_name I-other_name O O B-other_name O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O B-cell_type I-cell_type I-cell_type O