T-cell Mediated Cytotoxicity Necrosis Programmed cell death or apoptosis CTL recognizes and binds CTLprograms target for death, virus-infected cell inducing DNA fragmentation CTL migrates to new target Target cell dies by apoptosis 1997 Current Biology Ltd./Garland Publishing.Inc.T-cell Mediated Cytotoxicity ◼ Necrosis ◼ Programmed cell death or apoptosis