“Scatchard analysis of … ng/ml IFN-beta ser showed a decrease in binding affinity (control cells, Kd = 28 +/- 7 pM; IFN-beta ser-treated cells, Kd = 38 +/- 7 pM, …-gamma receptor sites (receptor number/control cell = 4257 +/- 464, receptor number/IFN-beta ser-treated cell = 5570 +/- 730; n = 2).”