Generally, the lncRNAs function in an intricate way,15, 16 as a competing endogenous RNAs (ceRNAs) to sponging miRNAs to affect target mRNA.17 MiR‐635 was first identified in colorectal cancer.18 Moreover, it was reported that miR‐635 could inhibit the tumorigenesis of NSCLC by targeting Ying Yang 1 (YY1).19 To date, whether PART1 binds with miR‐635 relevant molecular mechanism still needs to be confirmed by further experiments. Here, YY1 is linked to non-small cell lung carcinoma.