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Due to its epigenetic modulatory potential, it has been studied for possible therapeutic application in anticancer therapies. However, the VA exhibits different side effects in its application. Thus, synthetic coordination complexes with valproate can generate promising candidates for new active drugs with reduced toxicity. In this sense, we investigated the genotoxic and mutagenic potential of the sodium valproate and of the mixed ternary mononuclear Mg complex based on VA with 1,10\u2010phenanthroline (Phen) ligand \u2010 [Mg (Valp)<jats:sub>2<\/jats:sub>Phen], in <jats:styled-content style=\"fixed-case\"><jats:italic>Saccharomyces cerevisiae<\/jats:italic><\/jats:styled-content> and V79 cells. The MTT and clonal survival assays in V79 cells indicated that the Mg complex has higher cytotoxicity than sodium valproate. A similar cytotoxicity profile is observed in yeast. This fact is possibly due to the intercalation capacity of [Mg(Valp)<jats:sub>2<\/jats:sub>Phen], inducing DNA strand breaks, as observed in the comet assay and micronucleus test. In this sense, members of the NER, HR, NHEJ and TLS repair pathways are required for the repair of DNA lesions induced by [Mg(Valp)<jats:sub>2<\/jats:sub>Phen]. Interestingly, BER proteins apparently increase the cytotoxic potential of the drug. Furthermore, the [Mg(Valp)<jats:sub>2<\/jats:sub>Phen] showed higher cytotoxicity in V79 cells and yeast when compared to sodium valproate indicating applicability as a cytotoxic agent.<\/jats:p>","DOI":"10.1111\/bcpt.14091","type":"journal-article","created":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T08:44:44Z","timestamp":1728031484000},"page":"767-781","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Cytotoxicity, genotoxicity and mutagenicity of mixed ternary mononuclear Mg complex based on valproic acid with 1,10\u2010phenanthroline in <scp><i>Saccharomyces cerevisiae<\/i><\/scp> and V79 cells"],"prefix":"10.1111","volume":"135","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9382-5460","authenticated-orcid":false,"given":"Julia","family":"Vanini","sequence":"first","affiliation":[{"name":"Department of Biophysics Federal University of Rio Grande do Sul  Porto Alegre 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