And in this case, the cancer cell will now display a pathogenic, a foreign antigen on that MHC Class One complex. And now this is when the cytotoxicy T cell comes into play. It has the CDA Glycoprotein and the complementary T cell receptor that can basically bind onto this particular specific antigen and onto the Mhclass One complex. And once they are bound, the cytotoxic T cell basically does the same exact thing that the natural killer cell does. It releases these digestive proteins that poke holes in the membrane and lice and destroy that cell. So these are the two different types of white blood cells that make up the immunosurveillance system of our bodies.