Journal of Experimental Medicine, Vol 146, 600-605, Copyright © 1977 by Rockefeller University Press
Cytotoxic T cells distinguish between trinitrophenyl- and dinitrophenyl- modified syngeneic cells
J Forman
Spleen cells sensitized against trinitrophenyl (TNP)-modified stimulator
cells displayed a cytotoxic effect against syngeneic TNP- modified but not
dinitrophenyl (DNP)-modified target cells. The same finding was observed in
the opposite direction; that is, effector cells sensitized against
DNP-modified stimulator cells did not cross kill TNP- modified targets. The
specificity of the anti-TNP effector cells was confirmed in a cold target
competition assay. Presensitization in vivo with hapten-modified cells
followed by rechallenge and testing in vitro did not alter the specificity
of the response between the haptens. These data indicate that the
receptor(s) on the cytotoxic T cell can distinguish between two closely
related haptenic molecules.