T-Dependent Activation带 Intracellular pathogens Digested when released from dying host cell Peptide Ag presented on MHC class I Proliferation of cytotoxic T cells(CD8+) BIOL 533 Lecture 7BIOL 533 4 Lecture 7 T-Dependent Activation • Intracellular pathogens – Digested when released from dying host cell – Peptide Ag presented on MHC class I – Proliferation of cytotoxic T cells (CD8+)