NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,489 terms related to cancer and medicine.

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T-cell receptor
(… sel reh-SEP-ter)
A group of proteins found on T cells (a type of immune cell that recognizes and binds to foreign substances). T-cell receptors bind to certain antigens (proteins) found on abnormal cells, cancer cells, cells from other organisms, and cells infected with a virus or another microorganism. This interaction causes the T cells to attack these cells and helps the body fight infection, cancer, or other diseases. Also called TCR.