Cited by 46Histone Deacetylase Inhibitors ResearchEffects and risks of endocrine disrupting chemicalsEpigenetics and DNA Methylation

Histone deacetylase 4 promotes ubiquitin-dependent proteasomal degradation of Sp3 in SH-SY5Y cells treated with di(2-ethylhexyl)phthalate (DEHP), determining neuronal death

Guida, Natascia, Laudati, Giusy, Galgani, Mario, Santopaolo, Marianna, Montuori, Paolo, Triassi, Maria, Di Renzo, Gianfranco, Canzoniero, Lorella M.T. +1 more·2014·Toxicology and Applied Pharmacology

Abstract

Phthalates, phthalic acid esters, are widely used as plasticizers to produce polymeric materials in industrial production of plastics and daily consumable products. Animal studies have shown that di(2-ethylhexyl)phthalate (DEHP) may cause toxic effects in the rat brain. In the present study, chronic exposure to DEHP (0.1-100μM) caused dose-dependent cell death via the activation of caspase-3 in neuroblastoma cells. Intriguingly, this harmful effect was prevented by the pan-histone deacetylase (HDAC) inhibitor trichostatin A, by the class II HDAC inhibitor MC-1568, but not by the class I HDAC inhibitor MS-275. Furthermore, DEHP reduced specificity protein 3 (Sp3) gene expression, but not Sp3 mRNA, after 24 and 48h exposures. However, Sp3 protein reduction was prevented by pre-treatment with MC-1568, suggesting the involvement of class II HDACs in causing this effect. Then, we investigated the possible relationship between DEHP-induced neuronal death and the post-translational mechanisms responsible for the down-regulation of Sp3. Interestingly, DEHP-induced Sp3 reduction was associated to its deacetylation and polyubiquitination. Co-immunoprecipitation studies showed that Sp3 physically interacted with HDAC4 after DEHP exposure, while HDAC4 inhibition by antisense oligodeoxynucleotide reverted the DEHP-induced degradation of Sp3. Notably, Sp3 overexpression was able to counteract the detrimental effect induced by DEHP. Taken together, these results suggest that DEHP exerts its…

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Crossref · 10.1016/j.taap.2014.07.014

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Authors
Guida, N., Laudati, G., Galgani, M., Santopaolo, M., Montuori, P., Triassi, M., Di Renzo, G., Canzoniero, L. M. T., & Formisano, L.
Affiliations
  • University of Naples Federico II (IT)
  • Institute for Experimental Endocrinology and Oncology (IT)
  • University of Sannio (IT)
Corresponding author
  • Canzoniero, Lorella M.T.
  • Formisano, Luigi
Venue
Toxicology and Applied Pharmacology
Publisher
Elsevier BV
Published
2014-10
Volume
280
Issue
1
Pages
190-198
ISSN
0041-008X (ISSN-L)
OpenAlex
W2087802053
Cited by
46
References
45
Citations by year
2026: 4 · 2025: 5 · 2024: 3 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 3 · 2019: 3 · 2018: 6 · 2017: 3 · 2016: 3 · 2015: 8 · 2014: 2
FWCI
2.19
Type
journal article
Language
en
Open access
closed
Locations
  • Toxicology and Applied Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Effects and risks of endocrine disrupting chemicals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
DEHP, phthalate toxicity, HDAC4, Sp3, ubiquitin-proteasome degradation, polyubiquitination, protein deacetylation, class II histone deacetylases, trichostatin A, entinostat, caspase-3 activation, neuronal cell death, neuroblastoma cells, SH-SY5Y cells
MeSH terms
Animals, Cell Survival, Diethylhexyl Phthalate, Dose-Response Relationship, Drug, Histone Deacetylases, Humans, Repressor Proteins, Cell Death, Rats, Wistar, Ubiquitin, Cell Line, Tumor, Proteasome Endopeptidase Complex, Rats, Histone Deacetylase Inhibitors

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