Of plant lectins on HIV-1 transcytosis through a tight epithelial cells monolayer To evaluate the capacity of each plant lectin to inhibit in vitro HIV-1 transcytosis through genital epithelial cells, such as HEC-1A cells, we used a dual-chamber model in which the apical chamber consisted of a confluent monolayer of HEC-1A cells, and the basal chamber contained fresh medium. Cell-free virus (HIV-1