Fig. 3
From: Far-ultraviolet light causes direct DNA damage in human lung cells and tissues
CW and pulsed 222 nm irradiation induced DNA DSBs in human trachea. (A) Representative immunofluorescence images of γH2AX(Ser139) staining (green) in human trachea after CW 222 nm irradiation. Hoechst nuclei (blue). Scale bar, 100 μm. (B) Representative immunofluorescence images of γH2AX(Ser139) staining (green) after pulsed 222 nm irradiation in human trachea. Hoechst nuclei (blue). Pulsed 254 nm (5 mJ/cm2) irradiation was used as a positive control. Scale bar, 100 μm.
