Evidence map›Paper›PMID 16170383›Full record

ArticleOncogene2005

Stabilization of E2F1 protein by MDM2 through the E2F1 ubiquitination pathway.

Zhuo Zhang, Hui Wang, Mao Li, Elizabeth R Rayburn, Sudhir Agrawal, Ruiwen Zhang

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

87 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Role of the MDM2/p53 axis in regulating cisplatin response in tumor cells.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  19. MDM2, MDMX, and p73 regulate cell-cycle progression in the absence of wild-type p53.Proceedings of the National Academy of Sciences of the United States of America · 2021
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27 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Zhuo ZhangDepartment of Pharmacology and Toxicology and Division of Clinical Pharmacology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Hui Wang
Mao Li
Elizabeth R Rayburn
Sudhir Agrawal
Ruiwen Zhang
University of Alabama at Birmingham · US

Funding

MDM2 AS A NEGATIVE REGULATOR OF P21 WAF1/CIP1R01CA112029 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ZHANG, RUIWEN · 2005 to 2009
$1.3M
NCI NIH HHS CA 112029NCI NIH HHS CA80698
6 · The paper itself

Abstract

Although previous studies suggested that the tumorigenicity of mouse double minute 2 (MDM2) was due to its negative regulation of p53, the p53-independent interactions may be equally as important. During recent studies utilizing MDM2 inhibitors, we noted that E2F transcription factor 1 (E2F1) was down regulated upon inhibition of MDM2, regardless of the p53 status of the cancer. The present study investigated the mechanisms responsible for the MDM2-mediated increase in E2F1 expression. MDM2 prolongs the half-life of the E2F1 protein by inhibiting its ubiquitination. MDM2 displaces SCF(SKP2), the E2F1 E3 ligase. Direct binding between MDM2 and E2F1 is necessary for the negative effects of MDM2 on E2F1 ubiquitination, and deletion of the MDM2 nuclear localization signal does not result in loss of the ability to increase the E2F1 protein level. The downregulation of E2F1 upon MDM2 inhibition was not due to either pRB or p14(Arf). In addition, E2F1 was responsible for at least part of the inhibition of cell proliferation induced by MDM2 knockdown. In conclusion, the present study provides evidence that stabilization of the E2F1 protein is likely another p53-independent component of MDM2-mediated tumorigenesis. More knowledge about the MDM2-E2F1 interaction may be helpful in developing novel anticancer therapies.

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorCell NucleusChlorocebus aethiopsCOS CellsDose-Response Relationship, DrugDown-RegulationE2F1 Transcription FactorFemaleFluorescent Antibody Technique, IndirectGene DeletionGene Expression Regulation, NeoplasticHalf-LifeHumansMaleE2F1 protein, humanE2F1 Transcription FactorMDM2 protein, humanOligonucleotides, AntisenseProto-Oncogene Proteins c-mdm2Ubiquitin

Identifiers

PMID16170383
OpenAlexW2091145752

What OpenQuestion holds

Textmetadata
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.