CCL19 and colitis: Figure 4D shows a phylogenetic tree and identities of murine stromal cell clusters in DSS colitis. We assigned S3 sub-clusters decimal suffixes with the exception of cluster 7, which we labeled as S4 on the basis of its overlap with the corresponding human subset (Figure S4C). Among the shared marker genes identified were the FRC-associated chemokine Ccl19 and the IL-1 family alarmin Il33 (Figure 4E).