Upgrade subject to access all content
After membrane-bound Ig (mIg), expressed on the surface of a B cell, binds to its antigen, several events take place to activate that B cell.
Which of the following does NOT occur as a result of this antigen-binding?
The antigen is internalized by receptor-mediated endocytosis.
A signal cascade is initiated that results in the upregulation of MHC II.
A signal cascade is initiated that results in the expression of membrane receptors for cytokines, including IL-2.
The antigen is processed into peptides for presentation to T helper cells.