Ki67

Ki67 is a protein found in cells that are actively dividing and multiplying, which is important in understanding how quickly a tumor or tissue grows. When doctors analyze a sample of tissue, they can measure the level of Ki67 to assess how aggressive a cancer might be. A higher Ki67 index indicates that more cells are dividing rapidly, often suggesting a more aggressive disease, while a lower index suggests slower growth. This information helps guide treatment decisions and predict prognosis. Overall, Ki67 serves as a useful marker for understanding cell growth activity in both healthy and diseased tissues.