Evidence map›Paper›PMID 18697823›Full record

ArticleCirculation2008

Quantitative control of adaptive cardiac hypertrophy by acetyltransferase p300.

Jian Qin Wei, Lina A Shehadeh, James M Mitrani, Monica Pessanha, Tatiana I Slepak, Keith A Webster, Nanette H Bishopric

Open access · bronzeAbstract read
In one paragraph

Article in Circulation, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
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

68 citing papers in PubMed, 132 citations in OpenAlex.

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  19. MIAT, a potent CVD-promoting lncRNA.Cellular and molecular life sciences : CMLS · 2021
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8 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

7 authors at 1 institution in 1 country.

Jian Qin WeiUniversity of Miami School of Medicine, Department of Molecular and Cellular Pharmacology, Miami, FL, USA.
Lina A Shehadeh
James M Mitrani
Monica Pessanha
Tatiana I Slepak
Keith A Webster
Nanette H Bishopric
University of Miami · US

Funding

Pathways of Apoptosis in Hypoxic Cardiac MyocytesR01HL044578 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI WEBSTER, KEITH A · 1996 to 2011
$3.7M
Transcription Programming in Cardiac GrowthR01HL071094 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI BISHOPRIC, NANETTE HAHR · 2003 to 2012
$3.4M
Transcription Factor Networks in Cardiac HypertrophyF32HL083673 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SHEHADEH, LINA A · 2006 to 2008
$146k
NHLBI NIH HHS F32 HL083673NHLBI NIH HHS R01 HL044578NHLBI NIH HHS R01 HL071094NHLBI NIH HHS R01-HL44578NHLBI NIH HHS R01-HL71094
6 · The paper itself

Abstract

backgroundAcetyltransferase p300 is essential for cardiac development and is thought to be involved in cardiac myocyte growth through MEF2- and GATA4-dependent transcription. However, the importance of p300 in the modulation of cardiac growth in vivo is unknown. METHODS AND

resultsPressure overload induced by transverse aortic coarctation, postnatal physiological growth, and human heart failure were associated with large increases in p300. Minimal transgenic overexpression of p300 (1.5- to 3.5-fold) induced striking myocyte and cardiac hypertrophy. Both mortality and cardiac mass were directly related to p300 protein dosage. Heterozygous loss of a single p300 allele reduced pressure overload-induced hypertrophy by approximately 50% and rescued the hypertrophic phenotype of p300 overexpressers. Increased p300 expression had no effect on total histone deacetylase activity but was associated with proportional increases in p300 acetyltransferase activity and acetylation of the p300 substrates histone 3 and GATA-4. Remarkably, a doubling of p300 levels was associated with the de novo acetylation of MEF2. Consistent with this, genes specifically upregulated in p300 transgenic hearts were highly enriched for MEF2 binding sites.

conclusionsSmall increments in p300 are necessary and sufficient to drive myocardial hypertrophy, possibly through acetylation of MEF2 and upstream of signals promoting phosphorylation or nuclear export of histone deacetylases. We propose that induction of myocardial p300 content is a primary rate-limiting event in the response to hemodynamic loading in vivo and that p300 availability drives and constrains adaptive myocardial growth. Specific reduction of p300 content or activity may diminish stress-induced hypertrophy and forestall the development of heart failure.

Indexed as

AcetylationAnimalsAortic CoarctationCardiomegalyCell DivisionCells, CulturedEpigenesis, GeneticHeart FailureHumansMADS Domain ProteinsMiceMice, Inbred C57BLMice, TransgenicMyocytes, CardiacMyogenic Regulatory Factorsp300-CBP-Associated FactorMADS Domain ProteinsMyogenic Regulatory Factorsp300-CBP-Associated Factorp300-CBP Transcription Factors

Identifiers

PMID18697823
PMCPMC2726266
OpenAlexW2161850894

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.