Some well-known cancer biomarkers include: - PSA (Prostate-Specific Antigen): Used for screening prostate cancer. - HER2 (Human Epidermal Growth Factor Receptor 2): Important in breast cancer prognosis and treatment decisions. - CA-125 (Cancer Antigen 125): Used in ovarian cancer detection and monitoring. - EGFR (Epidermal Growth Factor Receptor): Targets in non-small cell lung cancer.
