Evidence map›Paper›PMID 25716680›Full record

ArticleCancer research2015

Usp28 counteracts Fbw7 in intestinal homeostasis and cancer.

Markus E Diefenbacher, Atanu Chakraborty, Sophia M Blake, Richard Mitter, Nikita Popov, Martin Eilers, Axel Behrens

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Molecular insights and clinical implications for the tumor suppressor role of SCFBiochimica et biophysica acta. Reviews on cancer · 2024
    Review
  8. Article
  9. Review
  10. Review
  11. Deubiquitinases in cancer.Nature reviews. Cancer · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Markus E DiefenbacherMammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, Lincoln's Inn Fields, London, United Kingdom.
Atanu ChakrabortyMammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, Lincoln's Inn Fields, London, United Kingdom.
Sophia M BlakeMammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, Lincoln's Inn Fields, London, United Kingdom.
Richard MitterBioinformatics and Biostatistics, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, Lincoln's Inn Fields, London, United Kingdom.
Nikita PopovUniversity of Würzburg, Comprehensive Cancer Center Mainfranken, Würzburg, Germany.
Martin EilersDepartment of Biochemistry and Molecular Biology, Theodor Boveri Institute, Biocenter, University of Würzburg, Würzburg, Germany.
Axel BehrensMammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, Lincoln's Inn Fields, London, United Kingdom. School of Medicine, King's College London, Guy's Campus, London, United Kingdom. axel.behrens@cancer.org.uk.
University of Würzburg · DE

Funding

Cancer Research UK 15679Cancer Research UK A3588European Research Council 281661
6 · The paper itself

Abstract

The stability of several oncoproteins, including c-Myc, is regulated by ubiquitin-dependent degradation mediated by the SCF(Fbw7) ubiquitin ligase. This activity is antagonized by the deubiquitinase Usp28, which is highly expressed in murine and human intestinal cancers. Usp28 was previously shown to interact with its substrates via a "piggyback" interaction with Fbw7, which suggested that Fbw7 is required for Usp28 activity. Unexpectedly, we found that genetic deletion of Usp28 rescued the lethality of Fbw7-deficient primary fibroblasts. Moreover, Usp28 inactivation in the intestine (Usp28(ΔIEC)) ameliorated the hyperproliferation and the impaired goblet and Paneth cell differentiation observed in Fbw7(ΔIEC) mice. The aggressive intestinal tumor formation of APC(Min/+); Fbw7(ΔIEC) mice was restrained when Usp28 was inactivated concomitantly. In both fibroblasts and intestinal cells, Usp28 deficiency corrected the accumulation of SCF(Fbw7) substrate proteins, including NICD1, c-Jun, and c-Myc. These findings suggested that Usp28 function does not depend on the presence of Fbw7, but instead independently recognizes and deubiquitylates the same substrates as SCF(Fbw7). Fbw7 binds to a phosphorylated motif termed the phosphodegron and we found that Usp28 also interacted with this same motif, but only when it is unphosphorylated, offering a mechanistic explanation for identical substrate selection by Fbw7 and Usp28. Our results indicate an unusually direct antagonism between an E3 ligase and a deubiquitinase, Fbw7 and Usp28, in modulating intestinal homeostasis and cancer.

Indexed as

HomeostasisAnimalsCarcinogenesisCell DifferentiationCell ProliferationF-Box ProteinsF-Box-WD Repeat-Containing Protein 7HCT116 CellsHumansIntestinal MucosaIntestinal NeoplasmsIntestinesMice, TransgenicUbiquitinationUbiquitin-Protein LigasesUbiquitin ThiolesteraseF-Box ProteinsF-Box-WD Repeat-Containing Protein 7Fbxw7 protein, mouseUbiquitin-Protein LigasesUbiquitin ThiolesteraseUSP28 protein, mouse

Identifiers

PMID25716680
PMCPMC4384988
OpenAlexW2068426682

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.