RT info:eu-repo/semantics/article T1 Bioavailable wine pomace attenuates oxalate-induced type II epithelial mesenchymal transition and preserve the differentiated phenotype of renal MDCK cells A1 Gerardi, Gisela A1 Casali, Cecilia I. A1 Cavia Saiz, Mónica A1 Rivero Pérez, Maria Dolores A1 Perazzo, Cecilia A1 González San José, Mª Luisa A1 Muñiz Rodríguez, Pilar A1 Fernández Tome, María C. K1 Food science K1 Cell biology K1 Plant products K1 Cell differentiation K1 Cytoskeleton K1 Natural product K1 Polyphenol K1 Antioxidant K1 Cancer research K1 Renal system K1 Wine pomace K1 Polyphenols K1 EMT K1 Oxalate K1 E-cadherin K1 Alimentos K1 Food K1 Biología molecular K1 Molecular biology K1 Bioquímica K1 Biochemistry AB The functional renal epithelium is composed of differentiated and polarized tubular cells with a strong actin cortex and specialized cell-cell junctions. If, under pathological conditions, these cells have to resist higher kidney osmolarity, they need to activate diverse mechanisms to survive external nephrotoxic agents such as inflammation and oxidative stress. Wine pomace polyphenols exert protective effects on renal cells. In this study, two wine-pomace products and their protective effects upon promotion and preservation of normal cell differentiation and attenuation of oxalate-induced type II epithelial mesenchymal transition (EMT) are evaluated. Treatment with gastrointestinal and colonic bioavailable fractions from red (rWPP) and white (wWPP) wine pomaces, both in the presence and the absence of oxalate, showed similar cell numbers and nuclear size than the non-treated differentiated MDCK cells. Immunofluorescence analysis showed the reduction of morphological changes and the preservation of cellular junctions for the rWPP and wWPP pre-treatment of cells exposed to oxalate injury. Hence, both rWPP and wWPP attenuated oxalate type II EMT in MDCK cells that conserved their epithelial morphology and cellular junctions through the antioxidant activities of grape pomace polyphenols. PB Elsevier SN 2405-8440 YR 2020 FD 2020-11 LK http://hdl.handle.net/10259/5577 UL http://hdl.handle.net/10259/5577 LA eng NO Agencia Nacional de Promoci on Científica y Tecnol ogica (PICT 2016-1055), the University of Buenos Aires (UBACYT 2014-2017, 20020130100658BA) and the Ministerio de Ciencia, Innovaci on y Universidades (PGC2018-097113B100). DS Repositorio Institucional de la Universidad de Burgos RD 21-nov-2024