Artikel
Natural HLA class I ligands from glioblastoma: Extending the options for immunotherapy
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Autoren
Veröffentlicht: | 21. Mai 2013 |
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Gliederung
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Objective: Glioblastoma multiforme (GBM) is the most frequent and most malignant primary brain tumor with a poor prognosis despite surgical removal and radio-chemotherapy. In this setting, immunotherapeutic strategies have great potential, but the reported repertoire of tumor-associated antigens (TAAs) is only for HLA-A*02 positive tumors.
Method: We describe the first analysis of HLA-peptide presentation patterns in HLA-A*02 negative glioma tissue combined with gene expression profiling of the tumor samples by oligonucleotide microarrays.
Results: We identified numerous candidate peptides for immunotherapy. These are peptides derived from proteins with a well-described role in glioma tumor biology and suitable gene expression profiles such as PTPRZ1, EGFR, SEC61G and TNC.
Conclusions: Information obtained from complementary analyses of HLA-A*02 negative tumors not only contributes to the discovery of novel shared glioma antigens, but most importantly provides the opportunity to tailor a patient-individual cocktail of tumor-associated peptides for a personalized, targeted immunotherapeutic approach in HLA-A*02 negative patients. This strategy is especially attractive in recurrent glioma since tissue samples can be obtained during the initial resection.