Fig. (3) Flow cytometry of lumogallion labelled aluminium adjuvants and THP-1. Lumogallion labelled ABAs suspended in R10 medium were incubated with and without THP-1 cells for 1 h at 37°C and then analysed by flow cytometry using forward (FSC) and side (SSC) scatter. Gate setting used to analyse THP-1 cells (P3) and ABA particles (P4). A. Lumogallion labelled Alhydrogel^®, 100 μg/ml in R10 medium. B. Lumogallion labelled Adju-Phos^®, 100 μg/ml in R10 medium. C. THP-1 cells incubated with R10 medium. D. THP-1 cells incubated with Alhydrogel^®, 100 μg/ml in R10 medium. E. THP-1 cells incubated with Adju-Phos^®, 100 μg/ml in R10 medium.