PATHOLOGY

Detailed explanation-1: -Cytotoxic T cells kill target cells bearing specific antigen while sparing neighboring uninfected cells. All the cells in a tissue are susceptible to lysis by the cytotoxic proteins of armed effector CD8 T cells, but only infected cells are killed.

Detailed explanation-2: -Cytotoxic T Cells These cells (1) express the CD8 coreceptor and (2) destroy infected cells in an antigen-specific manner that depends on the expression of MHC class I molecules on APCs. CTLs are able to kill target cells directly by inducing apoptosis.

Detailed explanation-3: -There are two main types of T-cells: Helper T-cells stimulate B-cells to make antibodies and help killer cells develop. Killer T-cells or cytotoxic T-cells directly kill cells that have already been infected by a foreign invader.

Detailed explanation-4: -Killer T-cells are able to find the cells with viruses and destroy them. Antigens work like identification tags that give your immune system information about your cells and any intruders.