University of Massachusetts Amherst Oct 9 2025 A study led by University of Massachusetts Amherst researchers demonstrates that their nanoparticle-based vaccine can effectively prevent melanoma, pancreatic and triple-negative breast cancer in mice. Not only did up to 88% of the vaccinated mice remain tumor-free (depending on the cancer), but the vaccine reduced-and in some cases completely prevented-the cancer's spread. By engineering these nanoparticles to activate the immune system via multi-