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World J Clin Oncol. Aug 24, 2025; 16(8): 108112
Published online Aug 24, 2025. doi: 10.5306/wjco.v16.i8.108112
Figure 1
Figure 1 The basic mechanism of action of temozolomide in the treatment of gliomas. Temozolomide reaches high-grade glioma cells after passing through the blood–brain barrier. The active molecule (MTIC), which methylates DNA bases, splits double-strand DNA, and triggers apoptosis. O6-methylguanine-DNA methyltransferase and other DNA repair pathways are in opposition to MTIC action. MTIC: 5-(3-methyltriazen-1-yl)-imidazole-4-carboxamide; TMZ: Temozolomide; MGMT: O6-methylguanine-DNA methyltransferase; BBB: Blood-brain barrier. This figure was created by BioRender.com (Supplementary material).