Representative flow cytometry images showing the proportion of CD19+CD40+,CD19+CD44+, CD19+CD80, CD19+CD86+, CD19+CD11b+, and CD19+HLA-DR+ B cells in PBMCsfrom a patient with psoriasis vulgaris at the active stage and a HC are shown inFigure 2. Here, CD80 is linked to psoriasis vulgaris.