Fig. (6B) Visualization of intracellular aluminium adjuvant. Confocal images of the centre sections of THP-1 cells that after staining with CellTrace™ Far Red were incubated with lumogallion labelled ABAs, washed and put back in culture. Experimental conditions as described in the Materials and Methods section. Images show nucleus as blue (DAPI), cytoplasm as red (CellTrace™ Far Red) and aluminium adjuvant as green (lumogallion). Upper left. A cell immediately after incubation with lumogallion labelled Alhydrogel® and removal of non-phagocytosed ABA. Upper right. A cell 3 days in culture after incubation with lumogallion labelled Alhydrogel® and removal of non-phagocytosed ABA. Lower left. A cell immediately after incubation with lumogallion labelled Adju-Phos® and removal of non-phagocytosed ABA. Lower right. A cell without any incubation with aluminium adjuvants.