How cells actively stop breast cancer from becoming invasive
A new study shows that the cells surrounding the breast's milk ducts form an active barrier that extends and grabs cancer cells before they spread to the rest of the body. The American Cancer Society estimate that in 2017, there were over 310,000 new cases of breast cancer among American women. Of these, 63,410 women had breast cancer in situ and 252,710 had invasive breast cancer. In situ breast cancer, also called ductal carcinoma in situ , is a non-invasive form of breast cancer in which the cancer cells that line the milk ducts have not broken through the walls of the ducts and have not managed to spread to the surrounding breast tissue. In invasive breast cancer , on the other hand, which is also called infiltrating breast cancer, cancer cells have spread beyond the ducts and can migrate through the blood and lymphatic system to other parts of the body. To distinguish clearly between non-invasive and invasive breast cancer, phys...