Additionally, nine more candidates (ANKRD29, C1orf198, C5orf38, CRTAC1, EMP2, EPB41L5, PLLP, SELENBP1, and SEMA3B) were reported to be expressed in transitional AT2 cells in IPF lung tissue [22]. This evidence concerns the gene CRTAC1 and idiopathic pulmonary fibrosis.