Evidence map›Paper›PMID 25411382›Full record

ArticleCardiovascular research2015

Physiological activation of Akt by PHLPP1 deletion protects against pathological hypertrophy.

Courtney Moc, Amy E Taylor, Gino P Chesini, Cristina M Zambrano, Melissa S Barlow, Xiaoxue Zhang, Åsa B Gustafsson, Nicole H Purcell

Open access · bronzeAbstract read
In one paragraph

Article in Cardiovascular research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

41 citing papers in PubMed, 63 citations in OpenAlex.

  1. PHLPP is neither a Phosphatase nor a Tumor Suppressor.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  2. Exercise-induced cardiac hypertrophy: cellular and molecular mechanisms of cardiac adaptation following physical activity.Postepy w kardiologii interwencyjnej = Advances in interventional cardiology · 2026
    Review
  3. Ang-1 and VEGF: central regulators of angiogenesis.Molecular and cellular biochemistry · 2025
    Review
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  16. The female syndecan-4Frontiers in cell and developmental biology · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Courtney MocDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA.
Amy E TaylorDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA.
Gino P ChesiniDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA.
Cristina M ZambranoDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA.
Melissa S BarlowDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA.
Xiaoxue ZhangSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA.
Åsa B GustafssonSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA.
Nicole H PurcellDepartment of Pharmacology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0636, USA npurcell@ucsd.edu.
University of California, San Diego · US

Funding

LCenter for Clinical and Translational Science and TrainingUL1TR001425 · NCATS · UNIVERSITY OF CINCINNATI · PI HEUBI, JAMES E., KISSELA, BRETT M · 2015 to 2024
$37.5M
Surgery, Physiology and ImmunohistopathologyP01HL085577 · NHLBI · SAN DIEGO STATE UNIVERSITY · PI GUSTAFSSON, ASA B. · 2006 to 2017
$18.4M
Role of Bnip3 in Myocardial Ischemia/ReperfusionR01HL087023 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GUSTAFSSON, ASA B. · 2007 to 2016
$3.8M
Role of PHLPP in the HeartR01HL114949 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PURCELL, NICOLE H · 2014 to 2022
$3.7M
NCATS NIH HHS UL1 TR001425NHLBI NIH HHS HL085577NHLBI NIH HHS HL087023NHLBI NIH HHS HL114949NHLBI NIH HHS P01 HL085577NHLBI NIH HHS R01 HL087023NHLBI NIH HHS R01 HL114949
6 · The paper itself

Abstract

aimsTo examine the role of physiological Akt signalling in pathological hypertrophy through analysis of PHLPP1 (PH domain leucine-rich repeat protein phosphatase) knock-out (KO) mice. METHODS AND

resultsTo investigate the in vivo requirement for 'physiological' control of Akt activation in cardiac growth, we examined the effect of deleting the Akt phosphatase, PHLPP, on the induction of cardiac hypertrophy. Basal Akt phosphorylation increased nearly two-fold in the cardiomyocytes from PHLPP1 KO mice and physiological hypertrophy induced by swimming exercise was accentuated as assessed by increased heart size and myocyte cell area. In contrast, the development of pathophysiological hypertrophy induced by pressure overload and assessed by increases in heart size, myocyte cell area, and hypertrophic gene expression was attenuated. This attenuation coincided with decreased fibrosis and cell death in the KO mice. Cast moulding revealed increased capillary density basally in the KO hearts, which was further elevated relative to wild-type mouse hearts in response to pressure overload. In vitro studies with isolated myocytes in co-culture also demonstrated that PHLPP1 deletion in cardiomyocytes can enhance endothelial tube formation. Expression of the pro-angiogenic factor VEGF was also elevated basally and accentuated in response to transverse aortic constriction in hearts from KO mice.

conclusionOur data suggest that enhancing Akt activity by inhibiting its PHLPP1-mediated dephosphorylation promotes processes associated with physiological hypertrophy that may be beneficial in attenuating the development of pathological hypertrophy.

Indexed as

AnimalsHeartHypertrophyMice, KnockoutMyocardiumMyocytes, CardiacNuclear ProteinsPhosphoprotein PhosphatasesPhosphorylationProto-Oncogene Proteins c-aktNuclear ProteinsPHLPP1 protein, mousePhosphoprotein PhosphatasesProto-Oncogene Proteins c-aktAktHypertrophyMouse modelPH domain leucine-rich repeat protein phosphatasePHLPP

Identifiers

PMID25411382
PMCPMC4303795
OpenAlexW2087390649

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.