||Serves to minimize autoimmunity or self-reactivity
of the immune system
||Serves to present fragments of antigens
to T cells
||Used by helper T cells to regulate the
expansion of antibody producing B cells
All of the above
MHC proteins complex with antigen
fragments on the surface of antigen presenting cells.
This allows the helper T cell to recognize the antigen
and stimulate B cells and cytotoxic T cells to launch
an immune response.