although in vitro treatment of cd4+ t cells with mab to a specific epitope of the cd4 molecule ( t4a ) blocks virus binding , syncytia formation , and infectivity , it is unclear if antibodies to gp120 from an infected individual that can inhibit the binding of gp120 to cd4 is in any way related to the clinical course of disease .
C0003250
mab
C0003241
antibodies