Evidence map›Paper›PMID 19109969›Full record

ArticleJournal of molecular and cellular cardiology2009

Secreted frizzled related protein 2 protects cells from apoptosis by blocking the effect of canonical Wnt3a.

Zhongyan Zhang, Arjun Deb, Zhiping Zhang, Alok Pachori, Wei He, Jian Guo, Richard Pratt, Victor J Dzau

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular and cellular cardiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
3.3field-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

79 citing papers in PubMed, 120 citations in OpenAlex.

  1. Review
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  8. Molecular Mechanism of Male Sterility Induced byMolecules (Basel, Switzerland) · 2023
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19 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

8 authors at 1 institution in 1 country.

Zhongyan ZhangEdna and Fred L. Mandel, Jr. Center for Hypertension and Atherosclerosis Research, Duke University School of Medicine, Durham, NC 27710, USA.
Arjun Deb
Zhiping Zhang
Alok Pachori
Wei He
Jian Guo
Richard Pratt
Victor J Dzau
Duke University · US

Funding

GENE THERAPY FOR LONG-TERM MYOCARDIAL PROTECTIONR01HL072010 · NHLBI · DUKE UNIVERSITY · PI DZAU, VICTOR J · 2003 to 2013
$4.5M
Sfrp2 as a Stem Cell Derived Paracrine Factor for CardioprotectionR01HL081744 · NHLBI · DUKE UNIVERSITY · PI DZAU, VICTOR J · 2006 to 2015
$3.8M
RENIN GENE EXPRESSION IN HYPERTENSIONR01HL035610 · NHLBI · STANFORD UNIVERSITY · PI DZAU, VICTOR J · 1985 to 2011
$3.6M
Homing and Genetic Modification of Mesenchymal Stem CellR01HL073219 · NHLBI · DUKE UNIVERSITY · PI DZAU, VICTOR J · 2003 to 2012
$3.5M
AT2 RECEPTOR-MEDIATED GENE PROGRAMMING OF SMOOTH MUSCLER01HL058516 · NHLBI · DUKE UNIVERSITY · PI DZAU, VICTOR J · 1997 to 2005
$2.3M
Role of Wnts in Cardiac RepairR01HL102190 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DEB, ARJUN · 2010 to 2014
$1.8M
NHLBI NIH HHS HL058516NHLBI NIH HHS HL072010NHLBI NIH HHS HL073219NHLBI NIH HHS HL081744NHLBI NIH HHS R01 HL035610NHLBI NIH HHS R01 HL058516NHLBI NIH HHS R01 HL072010NHLBI NIH HHS R01 HL073219NHLBI NIH HHS R01 HL081744NHLBI NIH HHS R01 HL102190
6 · The paper itself

Abstract

We have demonstrated that mesenchymal stem cells overexpressing the survival gene Akt can confer paracrine protection to ischemic myocytes both in vivo and in vitro through the release of secreted frizzled related protein 2 (Sfrp2). However, the mechanisms mediating these effects of Sfrp2 have not been fully elucidated. In this study, we studied rat cardiomyoblasts subjected to hypoxia reoxygenation (HR) injury to test the hypothesis that Sfrp2 exerts anti-apoptotic effect by antagonizing pro-apoptotic properties of specific Wnt ligands. We examined the effect of Wnt3a and Sfrp2 on HR-induced apoptosis. Wnt3a significantly increased cellular caspase activities and TUNEL staining in response to HR. Sfrp2 attenuated significantly Wnt3a-induced caspase activities in a concentration dependent fashion. Using a solid phase binding assay, our data demonstrates that Sfrp2 physically binds to Wnt3a. In addition, we observed that Sfrp2 dramatically inhibits the beta-catenin/TCF transcriptional activities induced by Wnt3a. Impressively, Dickkopf-1, a protein that binds to the Wnt coreceptor LRP, significantly inhibited the Wnt3a-activated caspase and transcriptional activities. Similarly, siRNA against beta-catenin markedly inhibited the Wnt3a-activated caspase activities. Consistent with this, significantly fewer TUNEL positive cells were observed in siRNA transfected cells than in control cells. Together, our data provide strong evidence to support the notion that Wnt3a is a canonical Wnt with pro-apoptotic action whose cellular activity is prevented by Sfrp2 through, at least in part, the direct binding of these molecules. These results can explain the in vivo protective effect of Sfrp2 and highlight its therapeutic potential for the ischemic heart.

Indexed as

ApoptosisAnimalsbeta CateninCaspasesCell HypoxiaCell LineEnzyme InductionFemaleIn Situ Nick-End LabelingMembrane ProteinsMyoblasts, CardiacMyocardial IschemiaRatsRats, Sprague-DawleySecreted Frizzled-Related ProteinsWnt3 Proteinbeta CateninCaspasesMembrane ProteinsSecreted Frizzled-Related ProteinsSfrp2 protein, ratWnt3 ProteinWnt Proteins

Identifiers

PMID19109969
PMCPMC2710029
OpenAlexW2084075462

What OpenQuestion holds

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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.