Monocarboxylate transporter 1 (MCT1) is expressedin the brain endothelial cell membrane and is upregulated in glioblastomatumor cells.−,  Particularly interesting, MCT1 is overexpressed inglioblastoma tumor stem-like cells, asubpopulation of tumor cells responsible for tumor recurrence andtreatment resistance. This evidence concerns the gene SLC16A1 and neoplasm.