RT Journal Article T1 Membrane vesicles of toxigenic Clostridioides difficile affect the metabolism of liver hepG2 cells A1 Caballano-Infantes, Estefanía A1 Ho-Plágaro, Ailec A1 López-Gómez, Carlos A1 Martín-Reyes, Flores A1 Rodríguez-Pacheco, Francisca A1 Taminiau, Bernard A1 Daube, Georges A1 Garrido Sánchez, Lourdes A1 Alcaín-Martínez, Guillermo A1 Andrade-Bellido, Raúl Jesús A1 García-Cortés, Miren A1 Lucena-González, María Isabel A1 García Fuentes, Eduardo A1 Rodriguez-Diaz, Cristina K1 Células hepáticas K1 Metabolismo K1 Vesícula biliar K1 Aparato digestivo-Enfermedades K1 Patógenos K1 Patología celular AB Clostridioides difficile infection (CDI) appears to be associated with different liver diseases. C. difficile secretes membrane vesicles (MVs), which may be involved in the development of nonalcoholic fatty liver disease (NALFD) and drug-induced liver injury (DILI). In this study, we investigated the presence of C. difficile-derived MVs in patients with and without CDI, and analyzed their effects on pathways related to NAFLD and DILI in HepG2 cells. Fecal extracellular vesicles from CDI patients showed an increase of Clostridioides MVs. C. difficile-derived MVs that were internalized by HepG2 cells. Toxigenic C. difficile-derived MVs decreased mitochondrial membrane potential and increased intracellular ROS compared to non-toxigenic C. difficile-derived MVs. In addition, toxigenic C. difficile-derived MVs upregulated the expression of genes related to mitochondrial fission (FIS1 and DRP1), antioxidant status (GPX1), apoptosis (CASP3), glycolysis (HK2, PDK1, LDHA and PKM2) and β-oxidation (CPT1A), as well as anti- and pro-inflammatory genes (IL-6 and IL-10). However, non-toxigenic C. difficile-derived MVs did not produce changes in the expression of these genes, except for CPT1A, which was also increased. In conclusion, the metabolic and mitochondrial changes produced by MVs obtained from toxigenic C. difficile present in CDI feces are common pathophysiological features observed in the NAFLD spectrum and DILI. PB MDPI YR 2023 FD 2023-03-27 LK https://hdl.handle.net/10630/26958 UL https://hdl.handle.net/10630/26958 LA eng NO Caballano-Infantes E, Ho-Plágaro A, López-Gómez C, Martín-Reyes F, Rodríguez-Pacheco F, Taminiau B, Daube G, Garrido-Sánchez L, Alcaín-Martínez G, Andrade RJ, et al. Membrane Vesicles of Toxigenic Clostridioides difficile Affect the Metabolism of Liver HepG2 Cells. Antioxidants. 2023; 12(4):818. https://doi.org/10.3390/antiox12040818 NO Partial funding for open access charge: Universidad de Málaga DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026