Remarkably, in the TCGA‐LGG and GTEx cohorts, a significant majority of the ARHGAP family genes, with the exception of ARHGAP15, ARHGAP20, ARHGAP24, and ARHGAP28, exhibited notable differential expression between tumour tissues and normal samples, as established through Wilcoxon test analysis (Figure 1A). The gene discussed is ARHGAP15; the disease is neoplasm.