Credit: NANCY MARIN/FEHNIGER LAB
A new study from Washington University School of Medicine in St. Louis demonstrates, in mice and human cells, that a cell-based immunotherapy may be effective against melanoma. Until now, such therapy — based on the immune system's natural killer cells — has only been used against blood cancers. Shown are three "memory-like" natural killer cells (red) attacking a melanoma cancer cell (green). The white areas show toxic molecules that the natural killer cells use to destroy the tumor cell.