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- W2955362110 abstract "ABSTRACT In this pilot study, we show that nuclei in spinal cord from ALS patients exhibit a differential lipidomic signature. Among the differential lipid species we could annotate 41 potential identities. These comprise membrane-bound lipids such as phosphatidylethanolamines–including plasmalogens- and phosphatidylcholines but also other lipid classes such as glycosphingolipids, diacylglycerols, and triacylglycerides (potentially present as nuclear lipid droplets). These results were orthogonally validated by showing loss of alkyldihydroxyacetonephosphate synthase (AGPS), a key peroxisomal enzyme in plasmalogen synthesis, both in ALS necropsy samples, in human motor neurons derived from iPSC from ALS patients and in hSOD-G93A transgenic mice. Further, diacylglycerol content changes were associated to ALS-linked variations in related-enzymes, such as phospholipase C ßI (PLCßI), the source of nuclear diacylglycerol, and protein kinase CßII (PKCßII), whose function partially depends on nuclei concentration of diacylglycerol. These results point out for not only a role of nuclear membrane lipids but also to lipids present in the nucleoplasm, suggesting an undisclosed role for this part of the subcellular lipidome in ALS pathophysiology." @default.
- W2955362110 created "2019-07-12" @default.
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- W2955362110 date "2019-06-26" @default.
- W2955362110 modified "2023-10-17" @default.
- W2955362110 title "Nuclear lipidome is altered in amyotrophic lateral sclerosis: a preliminary study" @default.
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- W2955362110 doi "https://doi.org/10.1101/682526" @default.
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