Evidence map›Paper›PMID 28035068›Full record

ArticleOncotarget2017

Otub1 stabilizes MDMX and promotes its proapoptotic function at the mitochondria.

Yingxiao Chen, Yue-Gang Wang, Yuhuang Li, Xiao-Xin Sun, Mu-Shui Dai

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 12% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Deubiquitylating Enzymes in Cancer and Immunity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Deubiquitinases: Modulators of Different Types of Regulated Cell Death.International journal of molecular sciences · 2021
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  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

5 authors at 1 institution in 1 country.

Yingxiao ChenDepartment of Molecular and Medical Genetics, School of Medicine, and The OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA.
Yue-Gang WangDepartment of Molecular and Medical Genetics, School of Medicine, and The OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA.
Yuhuang LiDepartment of Molecular and Medical Genetics, School of Medicine, and The OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA.
Xiao-Xin SunDepartment of Molecular and Medical Genetics, School of Medicine, and The OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA.
Mu-Shui DaiDepartment of Molecular and Medical Genetics, School of Medicine, and The OHSU Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA.
Oregon Health & Science University · US

Funding

Hydroxylation regulation of c-MycR01CA186241 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Mu-Shui Dai, ROSALIE C SEARS · 2015 to 2026
$4.2M
Role of Otubain 1 in the p53 PathwayR01CA160474 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI DAI, MU-SHUI · 2012 to 2016
$1.6M
NCI NIH HHS R01 CA160474NCI NIH HHS R01 CA186241
6 · The paper itself

Abstract

Otub1 regulates p53 stability and activity via non-canonical inhibition of UbcH5, the MDM2 cognate ubiquitin-conjugating enzyme (E2). However, whether Otub1 regulates MDMX stability and activity is not clear. Here we report that Otub1 also suppresses MDM2-mediated MDMX ubiquitination in cells and in vitro, independently of its deubiquitinating enzyme activity. Consequently, overexpression of Otub1 markedly stabilized MDMX and increased its levels, whereas knockdown of Otub1 reduced the levels of MDMX. Interestingly, MDMX induced by Otub1 can localize to mitochondria in addition to the cytosol, enhance p53 phosphorylation at S46 (p53S46P) and promote mitochondria-mediated apoptotic pathway. Knockdown of MDMX reduced Otub1-induced p53S46P, which was shown to be critical for p53's mitochondrial function and apoptotic activity. Furthermore, Otub1 promotes UV-irradiation-induced p53S46P and apoptosis, which can be significantly inhibited by MDMX depletion. Together, these results suggest that Otub1 stabilizes MDMX and promotes p53S46P and mitochondria-mediated apoptosis, providing an alternative mechanism of Otub1's role in apoptosis.

Indexed as

ApoptosisCell Cycle ProteinsCell Line, TumorCysteine EndopeptidasesDeubiquitinating EnzymesGene Expression Regulation, NeoplasticHumansImmunoblottingMitochondriaNuclear ProteinsPhosphorylationProto-Oncogene ProteinsProto-Oncogene Proteins c-mdm2Reverse Transcriptase Polymerase Chain ReactionRNA InterferenceSerineCell Cycle ProteinsCysteine EndopeptidasesDeubiquitinating EnzymesMDM2 protein, humanMDM4 protein, humanNuclear ProteinsOTUB1 protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins c-mdm2SerineTumor Suppressor Protein p53apoptosisdeubiquitinating enzymesMDMXOtub1p53

Identifiers

PMID28035068
PMCPMC5355245
OpenAlexW2565996772

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.