Effect of Vasoactive Intestinal Peptide (VIP) on NKG2D Signal Pathway and Its Contribution to Immune Escape of MKN45 Cells

Figure 4

NKG2D protein expression in different groups ×200 ((a) NK + VIP, (b) NK + VIP + VIP antagonist, and (c) NK).

(a)

(b)

(c)