In separate experiments, FACS-sorted CCR10+ IPF cells were intravenously administered into NSG mice (Figure 6, J–M), and at day 35 after injection, the numbers of CD45+CCR10+ (Figure 6K), EpCAM+CCR10+ (Figure 6L), and Lin–CCR10+ (Figure 6M) cells were found to positively correlate with hydroxyproline levels in the lungs of humanized NSG mice. This evidence concerns the gene EPCAM and idiopathic pulmonary fibrosis.