At identical final concentrations, combinations of synergy-inducing chemokines are equivalent in their potency compared with a single synergy-inducing chemokine. CCR7-transfected cell migration to 10 nM SLC in the presence of different chemokines at 150 nM (if not indicated differently in the figure). Mean ± SD of the chemotactic increase of 3 independent experiments is shown. The percentage of the chemotactic increase was calculated as described in Figure 4.