RESUMEN
Objective: To investigate the influence of furan coumarins from Angelicae Dahuricae Radix on intestinal absorption of puerarin, paeoniflorin, and vincristine, and to explore the influence law of furan coumarins on the intestinal absorption of the drugs with different structures. Methods: The apparent permeability coefficient (Papp) of drugs across the Caco-2 cell monolayers as evaluated index and Caco-2 cell model was used to study the absorption effects of furan coumarins (imperatorin, isoimperatorin, bergapten, and oxypeucedanin) on the transport of puerarin, paeoniflorin, and vincristine across Caco-2 cell monolayers. Results: There are different effects of the four coumarins on puerarin, paeoniflorin, and vincristine. For imperatorin, isoimperatorin, and oxypeucedanin could improve the transport of puerarin on Caco-2 cell significantly (P < 0.05, 0.01), while bergapten has no effect on the transport of puerarin across Caco-2 cell monolayers. For imperatorin and bergapten have no effect on the transport of paeoniflorin: However isoimperatorin and oxypeucedanin could significantly inhibit the transport of paeoniflorin across Caco-2 cell monolayers (P < 0.05, 0.01). Iperatorin, isoimperatorin, and oxypeucedanin could improve the transport of vincristine across Caco-2 cell monolayers significantly (P < 0.05, 0.01), but bergapten could significantly restrain the transport of vincristine across Caco-2 cell monolayers (P < 0.05). Conclusion: Different furan coumarins have different effects on the intestinal transport of the same medicine. Although the structures all are the furan type, the influence shows the opposite effect on drug transport. The same furan coumarin combined with different drugs have the different influences on the intestinal transport of compatibility drugs.