High‐dimensional UMAP and t‐sne plots of mass cytometry‐derived CD4+ T cells from 10 gluten challenged CeD patients confirmed that the Tetramer+ cells at baseline and d6 cluster within CD45RA−, CD62L−, integrin β7+ cells (Figure 1C,D; participants variables in Table S4 in the Supporting Information). This evidence concerns the gene SELL and cranioectodermal dysplasia.