Immunofluorescent staining of tight junction proteins in RPE. D407 were treated with 100 nM HIV-1 Tat and Hi-Tat for 24 h. Occludin and claudin-1 to -4 expressions were determined by immunofluorescence microscopy. (a) Occludin, (b) claudin-1, (c) claudin-2, (d) claudin-3, and (e) claudin-4. Bar, 25 μm.
Bai et al. BMC Infectious Diseases 2008 8:77 doi:10.1186/1471-2334-8-77