What is the Importance of Biomarkers in Cancer Treatment?
Biomarkers are biological molecules found in blood, other body fluids, or tissues that signal the presence of cancer. They are essential for early detection, diagnosis, and monitoring of cancer. Biomarkers can also predict how well a patient will respond to a particular treatment, enabling more precise and effective therapy choices. For example, the presence of the HER2 protein in breast cancer cells can determine the use of targeted therapies like trastuzumab.