Thus, TH17 cells in psoriatic skin transition from IL26+ TH17 intermediates to IL-17A producers under the influence of TGF-β.To investigate whether this transition specifically occurs in psoriatic skin, we turned to our atopic dermatitis (AD) scRNAseq dataset to quantify the number of IL26+ and IL17A+ cells. This evidence concerns the gene TGFB1 and Alzheimer disease.