@article{uneatlantico87, year = {2018}, title = {Overexpression of the Anthocyanidin Synthase Gene in Strawberry Enhances Antioxidant Capacity and Cytotoxic Effects on Human Hepatic Cancer Cells}, pages = {581--592}, volume = {66}, author = {Francesca Giampieri and Massimiliano Gasparrini and Tamara Y. Forbes-Hernandez and Luca Mazzoni and Franco Capocasa and Silvia Sabbadini and Jos{\'e} M. Alvarez-Suarez and Sadia Afrin and Carlo Rosati and Tiziana Pandolfini and Barbara Molesini and Jos{\'e} Federico S{\'a}nchez-Sevilla and Iraida Amaya and Bruno Mezzetti and Maurizio Battino}, journal = {Journal of Agricultural and Food Chemistry}, number = {3}, keywords = {Anthocyanidin synthase; Anticancer effects; Apoptosis; Flavonoids; RNA-seq.}, url = {http://repositorio.uneatlantico.es/id/eprint/87/}, abstract = {Food fortification through the increase and/or modulation of bioactive compounds has become a major goal for preventing several diseases, including cancer. Here, strawberry lines of cv. Calypso transformed with a construct containing an anthocyanidin synthase (ANS) gene were produced to study the effects on anthocyanin biosynthesis, metabolism, and transcriptome. Three strawberry ANS transgenic lines (ANS L5, ANS L15, and ANS L18) were analyzed for phytochemical composition and total antioxidant capacity (TAC), and their fruit extracts were assessed for cytotoxic effects on hepatocellular carcinoma. ANS L18 fruits had the highest levels of total phenolics and flavonoids, while those of ANS L15 had the highest anthocyanin concentration; TAC positively correlated with total polyphenol content. Fruit transcriptome was also specifically affected in the polyphenol biosynthesis and in other related metabolic pathways. Fruit extracts of all lines exerted cytotoxic effects in a dose/time-dependent manner, increasing cellular apoptosis and free radical levels and impairing mitochondrial functionality.} }