AP BIOLOGY

Detailed explanation-1: -Cancer that spreads from where it started to a distant part of the body is called metastatic cancer. For many types of cancer, it is also called stage IV (4) cancer. The process by which cancer cells spread to other parts of the body is called metastasis.

Detailed explanation-2: -(meh-TAS-tuh-sis) The spread of cancer cells from the place where they first formed to another part of the body. In metastasis, cancer cells break away from the original (primary) tumor, travel through the blood or lymph system, and form a new tumor in other organs or tissues of the body.

Detailed explanation-3: -The EMT posits that metastatic cells arise from either epithelial stem cells or differentiated epithelial cells through a step-wise accumulation of gene mutations that eventually transform the epithelial cell into a tumor cell with mesenchymal features.

Detailed explanation-4: -Metastasis is ability of cancer cells to spread from one organ or part of the body to another. Cancer cells migrate through blood or lymph pathway and invade other tissues and form new tumors. The process is termed as metastasis. It is the property of malignant tumor.