Effects of ionizing radiation on FcεRI expression in human mast cells.

<p>HMC-1(5C6) (A) and LAD2 (B) cells were incubated for 30 min in medium containing human IgE and exposed to 0–0.5 Gy ionizing radiation. Thirty minutes after irradiation, cells were incubated with FITC-conjugated human anti-IgE for 30 min. FcεRI expression was evaluated with flow cytometry. (C) The mean fluorescence intensity (MFI) is expressed as the mean ± SEM relative to the mean maximal MFI (100%). Data are representative of three experiments. *p<0.05, #p < 0.05 versus the corresponding control group of HMC-1(5C6) and LAD2 cells, respectively.