The present embodiments relate to an FDA- approved injectable multi-dose antigen pulsed dendritic cell (DC) vaccine. In one embodiment, the activated antigen-loaded DC vaccine comprises an initial immunizing dose and multiple "booster"doses. Also provided is a method of blocking both HER-2 and HER-3 as a treatment in causing permanent tumor senescence in HER-2 expressing breast cancers. Also provided is combination anti-estrogen therapy and anti-HER2 dendritic call vaccination for ERpos/HER2pos DCIS breast cancer patients.