PPARA and basal cell carcinoma: The results showed that the tumor hallmarks primary immunodeficiency (NES=-2.21, normalized P < 0.0001), intestinal immune network for IgA production (NES=-1.95, normalized P < 0.0001), PPAR signaling pathway (NES=-1.80, normalized P< 0.001), basal cell carcinoma (NES=1.53, normalized P =0.013), Wnt signaling pathway (NES=1.