To understand the possible implications of Gln metabolism-related genes as biomarkers for PCa progression after radiation therapy, we analyzed The Cancer Genome Atlas (TCGA) gene expression dataset and found that high combined expression of both MYC and GLS is significantly associated with decreased relapse-free survival in PCa patients treated with radiotherapy (n = 56) (Figure S8C). The gene discussed is GLS; the disease is posterior cortical atrophy.