Evidence map›Paper›PMID 21258410›Full record

ArticleOncogene2011

Selective targeting of activating and inhibitory Smads by distinct WWP2 ubiquitin ligase isoforms differentially modulates TGFβ signalling and EMT.

S M Soond, A Chantry

Open access · greenAbstract read
In one paragraph

Article in Oncogene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.0field-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

48 citing papers in PubMed, 102 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. The cross talk of ubiquitination and chemotherapy tolerance in colorectal cancer.Journal of cancer research and clinical oncology · 2024
    Review
  8. TGF-β signaling in health, disease, and therapeutics.Signal transduction and targeted therapy · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. The HECT family of E3 ubiquitin ligases and PTEN.Seminars in cancer biology · 2022
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. SMADS-Mediate Molecular Mechanisms in Sjögren's Syndrome.International journal of molecular sciences · 2021
    Review
  20. Article
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

2 authors at 1 institution in 1 country.

S M SoondSchool of Biological Sciences, University of East Anglia, Norwich, UK.
A Chantry
University of East Anglia · GB

Funding

The Dunhill Medical Trust R162/0510Worldwide Cancer Research 06-0407
6 · The paper itself

Abstract

Ubiquitin-dependent mechanisms have emerged as essential regulatory elements controlling cellular levels of Smads and TGFβ-dependent biological outputs such as epithelial-mesenchymal transition (EMT). In this study, we identify a HECT E3 ubiquitin ligase known as WWP2 (Full-length WWP2-FL), together with two WWP2 isoforms (N-terminal, WWP2-N; C-terminal WWP2-C), as novel Smad-binding partners. We show that WWP2-FL interacts exclusively with Smad2, Smad3 and Smad7 in the TGFβ pathway. Interestingly, the WWP2-N isoform interacts with Smad2 and Smad3, whereas WWP2-C interacts only with Smad7. In addition, WWP2-FL and WWP2-C have a preference for Smad7 based on protein turnover and ubiquitination studies. Unexpectedly, we also find that WWP2-N, which lacks the HECT ubiquitin ligase domain, can also interact with WWP2-FL in a TGFβ-regulated manner and activate endogenous WWP2 ubiquitin ligase activity causing degradation of unstimulated Smad2 and Smad3. Consistent with our protein interaction data, overexpression and knockdown approaches reveal that WWP2 isoforms differentially modulate TGFβ-dependent transcription and EMT. Finally, we show that selective disruption of WWP2 interactions with inhibitory Smad7 can stabilise Smad7 protein levels and prevent TGFβ-induced EMT. Collectively, our data suggest that WWP2-N can stimulate WWP2-FL leading to increased activity against unstimulated Smad2 and Smad3, and that Smad7 is a preferred substrate for WWP2-FL and WWP2-C following prolonged TGFβ stimulation. Significantly, this is the first report of an interdependent biological role for distinct HECT E3 ubiquitin ligase isoforms, and highlights an entirely novel regulatory paradigm that selectively limits the level of inhibitory and activating Smads.

Indexed as

AnimalsBlotting, WesternCell Line, TumorChlorocebus aethiopsCOS CellsEpithelial-Mesenchymal TransitionHEK293 CellsHumansIsoenzymesProtein BindingReverse Transcriptase Polymerase Chain ReactionRNA InterferenceSignal TransductionSmad2 ProteinSmad3 ProteinSmad7 ProteinIsoenzymesSmad2 ProteinSmad3 ProteinSmad7 ProteinSmad ProteinsTransforming Growth Factor betaUbiquitin-Protein LigasesWWP2 protein, human

Identifiers

PMID21258410
PMCPMC4073228
OpenAlexW1985830991

What OpenQuestion holds

Textmetadata
LicenceTDM
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.