Examlex
Frequently occurring nightmares of one a week or more are associated with
Antigens
Substances that provoke an immune response in the body, often foreign proteins or polysaccharides that are recognized by antibodies or immune cells.
Unresponsiveness
The state of not reacting to stimuli or not exhibiting any response.
Cytotoxic T cells
A type of immune cell that kills cancer cells, cells that are infected with viruses, or cells that are damaged in other ways.
MHC class I
Molecules found on the surface of all nucleated cells that present peptide fragments derived from the cell's internal proteins to the immune system.
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