- In the phase I patients with any solid tumor positive for p53 by IHC (>= 5% of cells with any degree of nuclear staining) staining; for the phase II, patients must have histologically or cytologically confirmed metastatic invasive breast cancer that is positive for p53 staining by IHC (>= 5% of cells with any degree of nuclear staining); patients will sign a separate consent for the p53 testing, and those that meet the above requirements will then be allowed to sign the vaccine trial consent