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NCI Dictionary of Cancer Terms


signal transduction inhibitor  listen  (SIG-nul tranz-DUK-shun in-HIH-bih-ter)

  A substance that blocks signals passed from one molecule to another inside a cell. Blocking these signals can affect many functions of the cell, including cell division and cell death, and may kill cancer cells. Certain signal transduction inhibitors are being studied in the treatment of cancer.