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- W3045367054 abstract "Several rare neurodegenerative diseases, including chorea acanthocytosis, are caused by mutations in the VPS13A–D genes. Only symptomatic treatments for these diseases are available. Saccharomyces cerevisiae contains a unique VPS13 gene and the yeast vps13Δ mutant has been proven as a suitable model for drug tests. A library of drugs and an in-house library of natural compounds and their derivatives were screened for molecules preventing the growth defect of vps13Δ cells on medium with sodium dodecyl sulfate (SDS). Seven polyphenols, including the iron-binding flavone luteolin, were identified. The structure–activity relationship and molecular mechanisms underlying the action of luteolin were characterized. The FET4 gene, which encodes an iron transporter, was found to be a multicopy suppressor of vps13Δ, pointing out the importance of iron in response to SDS stress. The growth defect of vps13Δ in SDS-supplemented medium was also alleviated by the addition of iron salts. Suppression did not involve cell antioxidant responses, as chemical antioxidants were not active. Our findings support that luteolin and iron may target the same cellular process, possibly the synthesis of sphingolipids. Unveiling the mechanisms of action of chemical and genetic suppressors of vps13Δ may help to better understand VPS13A–D-dependent pathogenesis and to develop novel therapeutic strategies." @default.
- W3045367054 created "2020-07-29" @default.
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- W3045367054 creator A5083042297 @default.
- W3045367054 date "2020-07-21" @default.
- W3045367054 modified "2023-10-18" @default.
- W3045367054 title "Flavonoids as Potential Drugs for VPS13-Dependent Rare Neurodegenerative Diseases" @default.
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- W3045367054 doi "https://doi.org/10.3390/genes11070828" @default.
- W3045367054 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7397310" @default.
- W3045367054 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32708255" @default.