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A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity

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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).
Keywords
LC-MS/MS, toxicoepigenetics, histone post-translational modifications, developmental toxicity, EMBRYONIC STEM-CELLS, VALPROIC ACID, ENVIRONMENTAL CHEMICALS, GENE-EXPRESSION, RETINOIC ACID, METHYLATION, NICOTINE, DIFFERENTIATION, DEACETYLASE, ASSAY

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MLA
Verhelst, Sigrid, et al. “A Large Scale Mass Spectrometry-Based Histone Screening for Assessing Epigenetic Developmental Toxicity.” SCIENTIFIC REPORTS, vol. 12, no. 1, 2022, doi:10.1038/s41598-022-05268-x.
APA
Verhelst, S., Van Puyvelde, B., Willems, S., Daled, S., Cornelis, S., Corveleyn, L., … Dhaenens, M. (2022). A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity. SCIENTIFIC REPORTS, 12(1). https://doi.org/10.1038/s41598-022-05268-x
Chicago author-date
Verhelst, Sigrid, Bart Van Puyvelde, Sander Willems, Simon Daled, Senne Cornelis, Laura Corveleyn, Ewoud Willems, Dieter Deforce, Laura De Clerck, and Maarten Dhaenens. 2022. “A Large Scale Mass Spectrometry-Based Histone Screening for Assessing Epigenetic Developmental Toxicity.” SCIENTIFIC REPORTS 12 (1). https://doi.org/10.1038/s41598-022-05268-x.
Chicago author-date (all authors)
Verhelst, Sigrid, Bart Van Puyvelde, Sander Willems, Simon Daled, Senne Cornelis, Laura Corveleyn, Ewoud Willems, Dieter Deforce, Laura De Clerck, and Maarten Dhaenens. 2022. “A Large Scale Mass Spectrometry-Based Histone Screening for Assessing Epigenetic Developmental Toxicity.” SCIENTIFIC REPORTS 12 (1). doi:10.1038/s41598-022-05268-x.
Vancouver
1.
Verhelst S, Van Puyvelde B, Willems S, Daled S, Cornelis S, Corveleyn L, et al. A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity. SCIENTIFIC REPORTS. 2022;12(1).
IEEE
[1]
S. Verhelst et al., “A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity,” SCIENTIFIC REPORTS, vol. 12, no. 1, 2022.
@article{8735551,
  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).}},
  articleno    = {{1256}},
  author       = {{Verhelst, Sigrid and Van Puyvelde, Bart and Willems, Sander and Daled, Simon and Cornelis, Senne and Corveleyn, Laura and Willems, Ewoud and Deforce, Dieter and De Clerck, Laura and Dhaenens, Maarten}},
  issn         = {{2045-2322}},
  journal      = {{SCIENTIFIC REPORTS}},
  keywords     = {{LC-MS/MS,toxicoepigenetics,histone post-translational modifications,developmental toxicity,EMBRYONIC STEM-CELLS,VALPROIC ACID,ENVIRONMENTAL CHEMICALS,GENE-EXPRESSION,RETINOIC ACID,METHYLATION,NICOTINE,DIFFERENTIATION,DEACETYLASE,ASSAY}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{16}},
  title        = {{A large scale mass spectrometry-based histone screening for assessing epigenetic developmental toxicity}},
  url          = {{http://doi.org/10.1038/s41598-022-05268-x}},
  volume       = {{12}},
  year         = {{2022}},
}

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