during incubations with protein synthesis suppressed by cycloheximide following surface tnf receptor digestion by trypsin , tnf receptors reappeared on the cell surface , increasing in number to a peak at 60 min and gradually decreasing , and cells previously exposed to cycloheximide with or without tnf showed no recurrence of surface tnf receptors , suggesting that the tnf receptor is non-recycling .
C0699040
cell surface
C0007634
cells