Dictionary of Cancer Terms
View in Spanish: MUC-1
MUC-1
A substance found on certain epithelial cells (cells that cover organs, glands, and other body surfaces) and on breast cells involved in making milk. It is also found on tumors of the breast, ovary, lung, and prostate. MUC-1 is a type of tumor marker.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.