WASEDA UNIVERSITY IMAGE: WASEDA UNIVERSITY RESEARCHERS IDENTIFY THE UNDERLYING MECHANISM BEHIND THE EXTRUSION OF PRECANCEROUS CELLS BY EPITHELIAL CELLS, A MECHANISM THAT PREVENTS THE FORMATION OF CANCEROUS LESIONS. CREDIT: WASEDA UNIVERSITY In addition to its immune surveillance system, recent reports have shown that the human body has defense mechanisms run by non-immune epithelial cells. Epithelial...