Transepithelial transport of putrescine across monolayers of the human intestinal epithelial cell line, Caco-2

Figure 1 Apical vs. basolateral uptake of putrescine in confluent (day 7) and differentiated (day 14) Caco-2 cells in culture. The experiments were carried out as indicated in the Methods section. EGF (100 μg/L) was added to the basolateral chamber, and the cells were incubated for 12 h. Mean ± SEM, N = 4. ^aP < 0.001 vs control.