Since DLGAP1‐AS1 has six transcripts, we searched on online database GEPIA (http://gepia.cancer‐pku.cn/) and found that DLGAP1‐AS1‐005 (ENST00000573355) and DLGAP1‐AS1‐002 (ENST00000576606) were expressed higher in GBM tissues than that in normal brain tissues (Figures 1a and S1a). Here, PTGDR is linked to glioblastoma.