How Are Protein Biomarkers Used in Cancer Diagnosis and Prognosis?
Protein biomarkers are invaluable in the diagnosis, prognosis, and treatment of cancer. Biomarkers like PSA for prostate cancer and CA-125 for ovarian cancer can be detected in blood tests, helping in early diagnosis. Additionally, the expression levels of certain proteins can provide prognostic information. For instance, high levels of Ki-67 indicate rapid cell proliferation and may suggest a more aggressive tumor.