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NCI Dictionary of Cancer Terms


S100 calcium binding protein A8  listen  (… KAL-see-um … PROH-teen …)

  A protein that is made by many different types of cells and is involved in processes that take place both inside and outside of the cell. It is made in larger amounts in inflammatory diseases such as rheumatoid arthritis, and in some types of cancer. It is being studied as a biomarker for breast cancer. Also called calgranulin A.