it is suggested that feedback antibody acts ( a ) in competition with receptors , inter alia removing antigen into immunologically irrelevant pathways , ( b ) by a process involving the linking of antigen to fc receptors , and ( c ) as a blocking antibody coating b cells ( bm ) or apc which are already binding epitopes , thus preventing their cooperation with specific helper or other accessory cells .
C0003320
antigen
C0003316
epitopes