Cited by 27Cancer-related Molecular PathwaysCell death mechanisms and regulationUbiquitin and proteasome pathways

Actionable cancer vulnerability due to translational arrest, p53 aggregation and ribosome biogenesis stress evoked by the disulfiram metabolite CuET

Open access
Kanellis, Dimitris C., Zisi, Asimina, Skrott, Zdenek, Lemmens, Bennie, Espinoza, Jaime A., Kosar, Martin, Björkman, Andrea, Li, Xuexin +7 more·2023·Cell Death & Differentiation

Abstract

Drug repurposing is a versatile strategy to improve current therapies. Disulfiram has long been used in the treatment of alcohol dependency and multiple clinical trials to evaluate its clinical value in oncology are ongoing. We have recently reported that the disulfiram metabolite diethyldithiocarbamate, when combined with copper (CuET), targets the NPL4 adapter of the p97VCP segregase to suppress the growth of a spectrum of cancer cell lines and xenograft models in vivo. CuET induces proteotoxic stress and genotoxic effects, however important issues concerning the full range of the CuET-evoked tumor cell phenotypes, their temporal order, and mechanistic basis have remained largely unexplored. Here, we have addressed these outstanding questions and show that in diverse human cancer cell models, CuET causes a very early translational arrest through the integrated stress response (ISR), later followed by features of nucleolar stress. Furthermore, we report that CuET entraps p53 in NPL4-rich aggregates leading to elevated p53 protein and its functional inhibition, consistent with the possibility of CuET-triggered cell death being p53-independent. Our transcriptomics profiling revealed activation of pro-survival adaptive pathways of ribosomal biogenesis (RiBi) and autophagy upon prolonged exposure to CuET, indicating potential feedback responses to CuET treatment. The latter concept was validated here by simultaneous pharmacological inhibition of RiBi and/or autophagy that further enhanced CuET’s tumor cytotoxicity, using both cell culture and zebrafish in vivo preclinical models. Overall, these findings expand the mechanistic repertoire of CuET’s anti-cancer activity, inform about the temporal order of responses and identify an unorthodox new mechanism of targeting p53. Our results are discussed in light of cancer-associated endogenous stresses as exploitable tumor vulnerabilities and may inspire future clinical applications of CuET in oncology, including combinatorial treatments and focus on potential advantages of using certain validated drug metabolites, rather than old, approved drugs with their, often complex, metabolic profiles.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41418-023-01167-4

Cites

43 of 43 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [32]Ewels PA, Peltzer A, Fillinger S, Alneberg J, Patel H, Wilm A et al. nf-core: community curated bioinformatics pipelines. Nat Biotechnol. 2020;38:276–278. 32055031
  2. [43]Test No. 236: Fish Embryo Acute Toxicity (FET) Test. OECD Guidelines for the Testing of Chemicals, Section 2: Effects on Biotic Systems. OECD iLibrary. https://www.oecd-ilibrary.org/environment/test-no-236-fish-embryo-acute-toxicity-fet-test_9789264203709-en. Accessed 27 Mar 2023.

Cited by

Sorted by citations

Authors
Kanellis, D. C., Zisi, A., Skrott, Z., Lemmens, B., Espinoza, J. A., Kosar, M., Björkman, A., Li, X., Arampatzis, S., Bartkova, J., Andújar-Sánchez, M., Fernandez-Capetillo, O., Mistrik, M., Lindström, M. S., & Bartek, J.
Affiliations
  • Science for Life Laboratory (SE)
  • Danish Cancer Society (DK)
Corresponding author
Kanellis, Dimitris C.
Venue
Cell Death & Differentiation
Published
2023-05-04
Volume
30
Issue
7
Pages
1666-1678
ISSN
  • 1350-9047 (ISSN-L)
  • 1476-5403
OpenAlex
W4372337602
Cited by
27
References
43
Citations by year
2026: 15 · 2025: 7 · 2024: 4 · 2023: 1
FWCI
3.29
Type
journal article
Language
en
Open access
Locations
  • Cell Death and Differentiation (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Cancerfonden (170176)
  • Vetenskapsrådet (VR-MH 2014-46602-117891-30)
  • Novo Nordisk Fonden (NNF20OC0060590)
  • Danmarks Grundforskningsfond (DNRF 125)
  • Dansk Kræftforsknings Fond (R204-A12617-B153)
  • Det Frie Forskningsråd (1026-00241B)
  • Grantová Agentura České Republiky (GACR 20-28685S)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
diethyldithiocarbamate, drug repurposing, Npl4, integrated stress response, translational arrest, nucleolar stress, ribosome biogenesis, autophagy, proteotoxic stress, p53-independent cell death, tumor vulnerability, zebrafish xenograft
MeSH terms
Animals, Disulfiram, Humans, Neoplasms, Ribosomes, Zebrafish, Tumor Suppressor Protein p53, Cell Line, Tumor

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review