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Cytotoxic T Cell
A kind of white blood cell that eliminates cancerous cells, cells infected mainly by viruses, or cells harmed in various manners.
MHC Class I
(Major Histocompatibility Complex Class I) are molecules found on almost all nucleated cells that present peptide antigens to the immune system, particularly to CD8+ T cells.
Antigen-Presenting Cell
A cell that displays antigen complexed with major histocompatibility complexes on their surfaces for recognition by T-cells, crucial in initiating an immune response.
MHC Class II
A group of proteins found on the surface of certain immune system cells, which are involved in presenting antigens to T cells, playing a crucial role in initiating immune responses.
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