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- W4206920924 abstract "Abstract Toxicoepigenetics is an emerging field that studies the toxicological impact of compounds on protein expression through heritable, non-genetic mechanisms, such as histone post-translational modifications (hPTMs). Due to substantial progress in the large-scale study of hPTMs, integration into the field of toxicology is promising and offers the opportunity to gain novel insights into toxicological phenomena. Moreover, there is a growing demand for high-throughput human-based in vitro assays for toxicity testing, especially for developmental toxicity. Consequently, we developed a mass spectrometry-based proof-of-concept to assess a histone code screening assay capable of simultaneously detecting multiple hPTM-changes in human embryonic stem cells. We first validated the untargeted workflow with valproic acid (VPA), a histone deacetylase inhibitor. These results demonstrate the capability of mapping the hPTM-dynamics, with a general increase in acetylations as an internal control. To illustrate the scalability, a dose–response study was performed on a proof-of-concept library of ten compounds (1) with a known effect on the hPTMs (BIX-01294, 3-Deazaneplanocin A, Trichostatin A, and VPA), (2) classified as highly embryotoxic by the European Centre for the Validation of Alternative Methods (ECVAM) (Methotrexate, and All-trans retinoic acid), (3) classified as non-embryotoxic by ECVAM (Penicillin G), and (4) compounds of abuse with a presumed developmental toxicity (ethanol, caffeine, and nicotine)." @default.
- W4206920924 created "2022-01-26" @default.
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- W4206920924 date "2022-01-24" @default.
- W4206920924 modified "2023-10-14" @default.
- W4206920924 title "A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity" @default.
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- W4206920924 doi "https://doi.org/10.1038/s41598-022-05268-x" @default.
- W4206920924 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35075221" @default.
- W4206920924 hasPublicationYear "2022" @default.
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