December 10, 2021

On the Cover
Human colon cancer cells with the cell nuclei stained red and the protein E-cadherin stained green. E-cadherin is a cell adhesion molecule and its loss signals a process known as the epithelial-mesenchymal transition in which cells acquire the ability to migrate and become invasive. Dec. 23, 2021, marks the 50th anniversary of the landmark National Cancer Act.
Photo: NCI Center for Cancer Research