For another, lncRNAs function as oncogenes11, 12 or anti‐oncogenes in NSCLC.6, 13 LncRNA AFAP1‐AS1, linc00460 and LINC00312 facilitate the proliferation, invasion and epithelial‐mesenchymal transition,5, 11, 12 while EPB41L4A‐AS26 and NKILA13 have the opposite effects in NSCLC cells. Here, PTGDR is linked to non-small cell lung carcinoma.