Figure 6. Transfer of captured HIV-1 from epithelial cells to permissive cells via cell-cell contact.

TR146, FaDu and A431 cells were incubated with R5 (YU2) and LAI (X4) virus for 24 h and following extensive washing TZM-bl indicator cells were added for a further 48 h. Controls included FaDu, TR146 and A431 cells without the addition of virus. Data are representative of three independent experiments.