Where Do B Cells Differentiate And What Do They Produce?

Where Do B Cells Differentiate And What Do They Produce? When a naïve or memory B cell is activated by an antigen, it proliferates and differentiates into an antibody-secreting effector cell, known as a plasmablast or plasma cell. Additionally, B cells present antigens (they are also classified as professional antigen-presenting cells (APCs)) and secrete cytokines.