The use of a prostacyclin analogue, [3H]iloprost, for studying prostacyclin-binding sites on human platelets and neuronal hybrid cells.

The stable prostacyclin analogue [3H]iloprost has been used for labelling prostacyclin-binding sites on human platelets and NCB-20 neuronal hybrid cells. The ligand-binding properties of the sites have been determined and correlate well with stimulation of cAMP synthesis in NCB-20 cells and inhibition of aggregation in human platelets.