NCIt definition : A peptide vaccine consisting of a combination of seven synthetic long peptides (SLPs),
which are each about 30 amino acids in size, and derived from cancer-testis antigens
(CTA) and melanocytic differentiation proteins (MDP), with potential immunostimulating
and antitumor activities. Upon administration, long peptide vaccine 7 may stimulate
the host immune system to mount a cytotoxic T-cell lymphocyte (CTL) response against
tumor cells expressing these peptides. CTA and MDP are overexpressed in a variety
of cancer cell types.;