Glioblastoma Embryonic-like Stem Cells Exhibit Immune-Evasive Phenotype.
antigen presentation; epigenomics; glioblastoma; glioma stem cells; transcriptomics; california; sjci; psjhc
BACKGROUND: Glioma stem cells (GSCs) have self-renewal and tumor-initiating capacities involved in drug resistance and immune evasion mechanisms in glioblastoma (GBM).
METHODS: Core-GSCs (c-GSCs) were identified by selecting cells co-expressing high levels of embryonic stem cell (ESC) markers from a single-cell RNA-seq patient-derived GBM dataset (
RESULTS: We identified a GSC population (4.22% ± 0.59) exhibiting concurrent high expression of ESC markers and downregulation of immune-associated pathways, named c-GSCs. In vitro ic-GSCs presented high expression of ESC markers and downregulation of antigen presentation HLA proteins. Transcriptomic analysis revealed a strong agreement of enriched biological pathways between tumor c-GSCs and in vitro ic-GSCs (
CONCLUSIONS: This study unravels glioblastoma immune-evasive mechanisms involving a c-GSC population. In addition, it provides a cellular model with paired gene expression, and DNA methylation maps to explore potential therapeutic complements for GBM immunotherapy.
Sesé, Borja; Íñiguez-Muñoz, Sandra; Ensenyat-Mendez, Miquel; Llinàs-Arias, Pere; Ramis, Guillem; Orozco, Javier I; Fernández de Mattos, Silvia; Villalonga, Priam; and Marzese, Diego M, "Glioblastoma Embryonic-like Stem Cells Exhibit Immune-Evasive Phenotype." (2022). Articles, Abstracts, and Reports. 6074.