BIOMARKER FOR CANCER DIAGNOSIS, PROGNOSIS AND FOLLOW-UP

摘要

The present invention relates to a novel biomarker for cancer - preferably breast or colon - diagnosis, prognosis and follow-up: the PIK3R2 gene or any of the expressed products thereof, since high levels of PIK3R2 correlate with advanced tumor stages, and in the case of breast cancer, with metastatic or invasive capacity. The invention further relates to a method of cancer - preferably breast or colon - diagnosis, prognosis and follow-up, wherein it is necessary to quantify said biomarker in a biological sample that includes tumor cells.