Figure 2. Reference datasets reveal heterogeneity of macrophage subtypes in lung fibrosis.

a-c, t-SNE plots of single-cell suspensions from mouse whole lung sequenced by Drop-seq color-coded by condition (a); annotated by SingleR using the ImmGen database as reference (b); and annotated by SingleR with lung-specific myeloid datasets26,27 (c). Data shown pool replicates (n=3 biologically independent mice for bleomycin-injured and n=6 biologically independent mice for healthy control). d, Quantification of similarity in gene expression of individual cells to bulk RNA-seq profiles of alveolar macrophages (AM) and CD11c+ interstitial macrophages (IM)27.