Figure 5. Immunity to OCT4 in ovarian cancer patients. Peripheral blood mononuclear cells (PBMCs) and ascitic fluid-derived mononuclear cells from the same patient were cultured in the presence or in the absence of an immunoreactive OCT4-derived peptide for 48 h, followed by the quantification of interferon γ (IFNγ)-inducible protein 10 (IP-10) secretion in co-culture supernatants. Phytohemagglutinin PHA-stimulated cells were used as a positive control. Results from one representative patients are shown.