The disclosed nucleic acid primer sets, used in combination with quantitative amplification (PCR) of tissue cDNA, can indicate the presence of specific proteases in a tissue sample. Specifically, the present invention relates to expression of PUMP-1 protease (matrix metalloprotease 7). The detected proteases are themselves specifically over-expressed in certain cancers, and their presence may serve for early detection of associated ovarian and other malignancies, and for the design of interactive therapies for cancer treatment.