MAPK Pathway Activity and Heme Biosynthesis Gene Expression in IDH-Wildtype Glioblastoma: A Purity-Adjusted, Discovery-Validation Analysis
5-aminolevulinic acid (5-ALA) promotes fluorescence-based resection of glioblastoma via protoporphyrin IX (PpIX); however, there is considerable heterogeneity in fluorescence intensity, limiting margin distinction. Cell-line studies show that stimulation of the MAPK pathway results in decreased PpIX levels through incr...