Figure 9.
Natural killer (NK) cells support IL-17A expression by helper T (Th) cells by CD58 co-stimulation. A representative plot of CD58 expression by CD3−CD56+ NK cells is shown from healthy subject peripheral blood mononuclear cell (PBMC) (A). Memory CD4+ T cells from healthy subjects PBMC were activated with anti-CD3, anti-CD28, and Th17 polarizing factors with NK cells in the presence or absence of CD58 neutralizing or isotype control antibody for 4 days. The cytokine IL-17A was assessed by enzyme-linked immunosorbent assay from cell culture supernatants (B). Graph indicates mean IL-17A concentration for N = 3 samples.