What are Biomarkers and Their Role in Tumor Characterization?
Biomarkers are biological molecules found in blood, other body fluids, or tissues that signify a normal or abnormal process, or a condition or disease. In cancer, biomarkers can be used for early detection, diagnosis, prognosis, and monitoring treatment response. Common biomarkers include PSA for prostate cancer, HER2 for breast cancer, and CA-125 for ovarian cancer.