Compared to control subjects, patients with RA exhibited LL thickening and a clearly elevated cell depth (Figures 1A,B), but no differences were noted in the percentages of pPDGFRαβ+CDH11–, pPDGFRαβ-CDH11+, or pPDGFRαβ+CDH11+ cells (Figures 1D–G). This evidence concerns the gene CDH11 and rheumatoid arthritis.