Cited by 109Histone Deacetylase Inhibitors ResearchCancer, Hypoxia, and MetabolismAngiogenesis and VEGF in Cancer

The Histone Deacetylase Inhibitor, Vorinostat, Represses Hypoxia Inducible Factor 1 Alpha Expression through Translational Inhibition

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Hutt, Darren M., Roth, Daniela Martino, Vignaud, Hélène, Cullin, Christophe, Bouchecareilh, Marion·2014·PLoS ONE

Abstract

Hypoxia inducible factor 1α (HIF-1α) is a master regulator of tumor angiogenesis being one of the major targets for cancer therapy. Previous studies have shown that Histone Deacetylase Inhibitors (HDACi) block tumor angiogenesis through the inhibition of HIF-1α expression. As such, Vorinostat (Suberoylanilide Hydroxamic Acid/SAHA) and Romidepsin, two HDACis, were recently approved by the Food and Drug Administration (FDA) for the treatment of cutaneous T cell lymphoma. Although HDACis have been shown to affect HIF-1α expression by modulating its interactions with the Hsp70/Hsp90 chaperone axis or its acetylation status, the molecular mechanisms by which HDACis inhibit HIF-1α expression need to be further characterized. Here, we report that the FDA-approved HDACi Vorinostat/SAHA inhibits HIF-1α expression in liver cancer-derived cell lines, by a new mechanism independent of p53, prolyl-hydroxylases, autophagy and proteasome degradation. We found that SAHA or silencing of HDAC9 mechanism of action is due to inhibition of HIF-1α translation, which in turn, is mediated by the eukaryotic translation initiation factor--eIF3G. We also highlighted that HIF-1α translation is dramatically inhibited when SAHA is combined with eIF3H silencing. Taken together, we show that HDAC activity regulates HIF-1α translation, with HDACis such as SAHA representing a potential novel approach for the treatment of hepatocellular carcinoma.

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Crossref · 10.1371/journal.pone.0106224

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  • Vorinostat inhibits HIF-1α translation, impairs nuclear accumulation, and promotes ubiquitination-dependent proteasomal degradation, collectively suppressing HIF-1 transcriptional activity under hypoxia.

    “Mechanistically, vorinostat acts at multiple regulatory levels: it inhibits HIF-1α translation, impairs nuclear accumulation, and promotes ubiquitination-dependent proteasomal degradation, collectively suppressing HIF-1 transcriptional activity under hypoxia [351,352].”

    From HIF inhibition: Current strategies and clinical challenges (2026) · cites this paper as [351]

    The Abstract and Discussion report that vorinostat (SAHA) inhibits HIF-1α translation, and the Results show reduced HIF-1α protein levels with hypoxia-mimicking treatments. The Results section “SAHA down regulates HIF-1α protein levels independent of protein degradation” explicitly says the reduction does not occur through increased proteasomal degradation. The cited passages do not establish impaired nuclear accumulation or directly demonstrate the claimed suppression of HIF-1 transcriptional activity under hypoxia. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Vorinostat exerts broad suppressive effects on HIF signaling, resulting in robust reductions in HIF-1α protein abundance.

    “Vorinostat (suberoylanilide hydroxamic acid), a pan-histone deacetylase (HDAC) inhibitor, exerts broad suppressive effects on HIF signaling, resulting in robust reductions in HIF-1α protein abundance [351,352].”

    From HIF inhibition: Current strategies and clinical challenges (2026) · cites this paper as [351]

    The Results section (‘SAHA down regulates HIF-1α protein levels independent of protein degradation’; page unavailable) reports that vorinostat/SAHA reduced HIF-1α protein levels in liver cancer-derived cell lines, including under treatments that increased HIF-1α. The paper does not establish broad suppression of HIF signaling beyond its findings on HIF-1α expression, so that part of the claim is overstated. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • HDAC inhibitors have been shown to promote HIF-1α degradation, and translational inhibition of HIF-1α has been proposed as vorinostat's mechanism of action.

    “HDAC inhibitors have been shown to promote HIF-1α degradation and, although the exact mechanism is not completely understood, translational inhibition of HIF-1α has been proposed as vorinostat's mechanism of action (Hutt et al., 2014).”

    From Therapeutic targeting of hypoxia and hypoxia-inducible factors in cancer (2016) · cites this paper as Hutt et al., 2014

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Research works printed but not linked: 2

  1. [1]El-Serag HB (2011) Hepatocellular carcinoma. N Engl J Med 365: 1118– 1127. 21992124
  2. [10]Boumber Y, Issa JP (2011) Epigenetics in cancer: what’s the future? Oncology (Williston Park) 25: 220–226, 228. 21548464

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Authors
Hutt, D. M., Roth, D. M., Vignaud, H., Cullin, C., & Bouchecareilh, M.
Affiliations
  • Scripps Research Institute (US)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Bouchecareilh, Marion
Venue
PLoS ONE
Published
2014-08-28
Volume
9
Issue
8
Pages
e106224
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1965331098
Cited by
109
References
64
Citations by year
2026: 4 · 2025: 11 · 2024: 8 · 2023: 7 · 2022: 6 · 2021: 12 · 2020: 15 · 2019: 9 · 2018: 8 · 2017: 14 · 2016: 10 · 2015: 5
FWCI
3.97
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
Institut National de la Santé et de la Recherche Médicale (U1053)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
Keywords
vorinostat, histone deacetylase inhibitors, hypoxia-inducible factor-1α, protein synthesis inhibition, eIF3h, hepatocellular carcinoma, liver cancer, tumor angiogenesis, HDAC9, cutaneous T-cell lymphoma
MeSH terms
Vorinostat, Histone Deacetylases, Humans, Hydroxamic Acids, Liver Neoplasms, Repressor Proteins, Protein Biosynthesis, Gene Expression Regulation, Neoplastic, Gene Silencing, Eukaryotic Initiation Factor-3, Cell Line, Tumor, Hypoxia-Inducible Factor 1, alpha Subunit, Histone Deacetylase Inhibitors

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