According to past reports, miR-23b-3p was underexpressed in gastric cancer [18] and tongue cancer [19], and likewise, here we discovered the low expression of miR-23b-3p in PC, and through correlation analysis, we identified a negative correlation between KTN1-AS1 and miR-23b-3p. The gene discussed is PTGDR; the disease is pachyonychia congenita.