RT Journal Article T1 Methanolic Extract of Ganoderma lucidum Induces Autophagy of AGS Human Gastric Tumor Cells A1 Reis, Filipa S. A1 Lima, Raquel T. A1 Morales Gómez, Patricia A1 Ferreira, Isabel C. F. R. A1 Vasconcelos, M. Helena AB Ganoderma lucidum is one of the most widely studied mushroom species, particularly in what concerns its medicinal properties. Previous studies (including those from some of us) have shown some evidence that the methanolic extract of G. lucidum affects cellular autophagy. However, it was not known if it induces autophagy or decreases the autophagic flux. The treatment of a gastric adenocarcinoma cell line (AGS) with the mushroom extract increased the formation of autophagosomes (vacuoles typical from autophagy). Moreover, the cellular levels of LC3-II were also increased, and the cellular levels of p62 decreased, confirming that the extract affects cellular autophagy. Treating the cells with the extract together with lysossomal protease inhibitors, the cellular levels of LC3-II and p62 increased. The results obtained proved that, in AGS cells, the methanolic extract of G. lucidum causes an induction of autophagy, rather than a reduction in the autophagic flux. To our knowledge, this is the first study proving that statement. PB MDPI SN 1420-3049 YR 2015 FD 2015-09-29 LK https://hdl.handle.net/20.500.14352/23899 UL https://hdl.handle.net/20.500.14352/23899 LA eng NO e Portuguese Foundation for Science and Technology. NO Programa Operacional Regional do Norte DS Docta Complutense RD 7 oct 2024