Evidence map›Paper›PMID 29267372›Full record

ArticlePloS one2017

Cardiac-specific ablation of the E3 ubiquitin ligase Mdm2 leads to oxidative stress, broad mitochondrial deficiency and early death.

Ludger Hauck, Shanna Stanley-Hasnain, Amelia Fung, Daniela Grothe, Vivek Rao, Tak W Mak, Filio Billia

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
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

29 citing papers in PubMed, 43 citations in OpenAlex.

  1. 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
    Review
  2. Ubiquitin E3 Ligases and p53 in Doxorubicin-Induced Cardiotoxicity.International journal of molecular sciences · 2025
    Review
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  14. p53 and Myofibroblast Apoptosis in Organ Fibrosis.International journal of molecular sciences · 2023
    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 3 institutions in 1 country.

Ludger HauckToronto General Research Institute, Toronto, Ontario, Canada.
Shanna Stanley-HasnainToronto General Research Institute, Toronto, Ontario, Canada.
Amelia FungToronto General Research Institute, Toronto, Ontario, Canada.
Daniela GrotheToronto General Research Institute, Toronto, Ontario, Canada.
Vivek RaoDivision of Cardiovascular Surgery, UHN, Toronto, Ontario, Canada.
Tak W MakCampbell Family Cancer Research Institute, Princess Margaret Hospital, Toronto, Ontario, Canada.
Filio BilliaToronto General Research Institute, Toronto, Ontario, Canada.ORCID 0000-0002-2824-1215
Toronto General Hospital · CAOntario Institute for Cancer Research · CAUniversity Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The maintenance of normal heart function requires proper control of protein turnover. The ubiquitin-proteasome system is a principal regulator of protein degradation. Mdm2 is the main E3 ubiquitin ligase for p53 in mitotic cells thereby regulating cellular growth, DNA repair, oxidative stress and apoptosis. However, which of these Mdm2-related activities are preserved in differentiated cardiomyocytes has yet to be determined. We sought to elucidate the role of Mdm2 in the control of normal heart function. We observed markedly reduced Mdm2 mRNA levels accompanied by highly elevated p53 protein expression in the hearts of wild type mice subjected to myocardial infarction or trans-aortic banding. Accordingly, we generated conditional cardiac-specific Mdm2 gene knockout (Mdm2f/f;mcm) mice. In adulthood, Mdm2f/f;mcm mice developed spontaneous cardiac hypertrophy, left ventricular dysfunction with early mortality post-tamoxifen. A decreased polyubiquitination of myocardial p53 was observed, leading to its stabilization and activation, in the absence of acute stress. In addition, transcriptomic analysis of Mdm2-deficient hearts revealed that there is an induction of E2f1 and c-Myc mRNA levels with reduced expression of the Pgc-1a/Ppara/Esrrb/g axis and Pink1. This was associated with a significant degree of cardiomyocyte apoptosis, and an inhibition of redox homeostasis and mitochondrial bioenergetics. All these processes are early, Mdm2-associated events and contribute to the development of pathological hypertrophy. Our genetic and biochemical data support a role for Mdm2 in cardiac growth control through the regulation of p53, the Pgc-1 family of transcriptional coactivators and the pivotal antioxidant Pink1.

Indexed as

Oxidative StressAnimalsApoptosisEchocardiographyHumansMiceMice, Inbred C57BLMicroscopy, FluorescenceMitochondria, HeartMyocardiumProto-Oncogene Proteins c-mdm2Real-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTumor Suppressor Protein p53MDM2 protein, humanProto-Oncogene Proteins c-mdm2RNA, MessengerTumor Suppressor Protein p53

Identifiers

PMID29267372
PMCPMC5739440
OpenAlexW2777103975

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.