In addition, using dual-color IHC analysis, we observed that CCR10+EphA3+ cells were rarely localized in normal lung explants (Figure 2R) while various CCR10+EphA3+ cell types were clearly visible in IPF lung biopsies (Figure 2, S and T) and explants (Figure 2, U and V). Here, EPHA3 is linked to idiopathic pulmonary fibrosis.