Cancer vaccines self-sabotage, channel immune attack to injection site
HOUSTON – Cancer vaccines that attempt to stimulate an immune system assault fail because the killer T cells aimed at tumors instead find the vaccination site a more inviting target, scientists at The University of Texas MD Anderson Cancer Center report in Nature Medicine.
A common substance used in many cancer vaccines to boost immune attack betrays the cause by facilitating a buildup of T cells at the vaccination site, which then summon more T cells to help with the perceived threat.
"Vaccines stimulate production of T cells primed to attack the target cancer, and ...
