Fig. 2.
(A) In vitro uptake of 68Ga-labelled siderophores in A.f. cultures over time (mean±S.D., n=4). Incubation in iron-sufficient media as well as addition of excess of ferri-siderophore statistically significantly reduced the uptake (P<.01), except for early time points (10–20 min), and 68Ga-FCH, 68Ga-COP and 68Ga-FOXB. (B) In vitro uptake of 68Ga-labelled siderophores in the presence of excess of NaN3 and ferri-siderophore (mean±S.D., n=8). Incubation in iron-sufficient media and addition of sodium azide statistically significantly reduced the uptake (P<.01) for all tested 68Ga-siderophores.