Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Escaping immune surveillance.
Notes: T-cells in the immune system recognize and eliminate immunogenic transformed cells. However, some cells do not express enough neoantigens to be recognized by the immune system, while others express ligands for checkpoint receptors on T-cells to terminate the immune response.
