Correlation of survival with tumor antigen expression in patients with newly diagnosed glioblastoma receiving a multi-epitope pulsed dendritic cell vaccine.
2017
2087 Background: This study evaluated the safety and immune responses to an autologous dendritic cell vaccine pulsed with class I peptides from tumor associated antigens (TAA) expressed on gliomas and overexpressed in their cancer stem cell population (ICT-107). These TAA epitodes AIM-2. TRP-2, HER2 and AIM-2, are also overexpressed on glioblastoma multiforme (GBM) cancer stem cells. Methods: TAA epitopes included HER2, TRP-2, gp100, MAGE-1, IL13Rα2, and AIM-2. HLA-A1 and/or HLA-A2 positive glioblastoma (GBM) patients with gross total resection were eligible. Mononuclear cells from leukapheresis were differentiated into dendritic cells, pulsed with TAA peptides, and administered intradermally three times at two-week intervals in the axilla region after a standard treatment with concurrent temozolomide (TMZ) and radiation therapy for newly diagnosed (ND-GBM). Results: Twenty-one patients were enrolled with 17 ND-GBM and three recurrent GBM patients and one brainstem glioma. Immune response data on 15 newly...
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