NCIt definition : A cancer vaccine consisting of an immunogenic peptide derived from the cancer-testis
antigen (NY-ESO-1), an antigen found in normal testis and various tumors. Vaccination
with NY-ESO-1 peptide vaccine may stimulate the host immune system to mount a humoral
and cytotoxic T lymphocyte (CTL) response to cells expressing NY-ESO-1 antigen, resulting
in tumor cell lysis.;