RT info:eu-repo/semantics/article T1 The Breast Cancer Resistance Protein (BCRP/ABCG2) influences the levels of enterolignans and their metabolites in plasma, milk and mammary gland A1 García Mateos, Dafne A1 García-Villalba, Rocío A1 Marañón, José Ángel A1 Espín, Juan Carlos A1 Merino Peláez, Gracia A1 Álvarez de Felipe, Ana Isabel A2 Fisiologia K1 Sanidad animal K1 Veterinaria K1 Enterolactone K1 Enterodiol K1 ABCG2, K1 Milk K1 Mammary gland K1 Gut microbiota AB Lignans are phytoestrogens widely used in dietary supplements and functional foods. After oralingestion, these polyphenols are metabolized to enterolignans, the main gut microbiota-derivedmetabolites with weak estrogenic/anti-estrogenic activities. The ABCG2 transporter is highlyexpressed in the mammary gland and could be responsible for enterolignan accumulation. Weaimed here at evaluating the levels of enterolignans and their conjugates in plasma, milk andmammary tissue from wild-type and knockout Abcg2-/- female mice after a lignan-enriched dietfor one week. In vitro transepithelial transport of enterolignans was also assayed with ABCG2-transduced cells. Enterolactone and enterodiol levels were higher in plasma and lower in milkfrom Abcg2-/- compared with wild-type mice. Both enterolactone and enterodiol wereaccumulated in the mammary gland but with significant differences only for enterolactone. Ourresults suggest that ABCG2 may be determinant for plasma and milk levels of enterolignanswhose accumulation could exert chemopreventive effects against breast cancer PB Elsevier YR 2017 FD 2017-10-10 LK http://hdl.handle.net/10612/6863 UL http://hdl.handle.net/10612/6863 NO Journal of Functional Foods, 2017, n. 35 NO P. 648-654 DS BULERIA. Repositorio Institucional de la Universidad de León RD 19-abr-2024