Molecules at work on the T-cell surface.

Over the past two years a series of molecules on the T-cell surface have been defined using monoclonal antibodies. These have been grouped according to an agreed nomenclature (Table 1) and at a recent meeting(∗) there was conspicuous interest in the functional significance of some of these molecules. There was much new information on the T-cell antigen receptor which has been reviewed elsewhere(1)