PPARβ/δ priming enhances the anti-apoptotic and therapeutic properties of mesenchymal stromal cells in myocardial ischemia–reperfusion injury

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dc.coverageDOI: 10.1186/s13287-022-02840-0
dc.creatorSarre, Charlotte
dc.creatorContreras-Lopez, Rafael
dc.creatorNernpermpisooth, Nitirut
dc.creatorBarrere, Christian
dc.creatorBahraoui, Sarah
dc.creatorTerraza, Claudia
dc.creatorTejedor, Gautier
dc.creatorVincent, Anne
dc.creatorLuz-Crawford, Patricia
dc.creatorKongpol, Kantapich
dc.creatorKumphune, Sarawut
dc.creatorPiot, Christophe
dc.creatorNargeot, Joel
dc.creatorJorgensen, Christian
dc.creatorDjouad, Farida
dc.creatorBarrere-Lemaire, Stéphanie
dc.date2022
dc.date.accessioned2025-11-18T19:41:55Z
dc.date.available2025-11-18T19:41:55Z
dc.description<p>Background: Mesenchymal Stromal Cells (MSC) have been widely used for their therapeutic properties in many clinical applications including myocardial infarction. Despite promising preclinical results and evidences of safety and efficacy in phases I/ II, inconsistencies in phase III trials have been reported. In a previous study, we have shown using MSC derived from the bone marrow of PPARβ/δ (Peroxisome proliferator-activated receptors β/δ) knockout mice that the acute cardioprotective properties of MSC during the first hour of reperfusion are PPARβ/δ-dependent but not related to the anti-inflammatory effect of MSC. However, the role of the modulation of PPARβ/δ expression on MSC cardioprotective and anti-apoptotic properties has never been investigated. Objectives: The aim of this study was to investigate the role of PPARβ/δ modulation (inhibition or activation) in MSC therapeutic properties in vitro and ex vivo in an experimental model of myocardial infarction. Methods and results: Naïve MSC and MSC pharmacologically activated or inhibited for PPARβ/δ were challenged with H<sub>2</sub>O<sub>2</sub>. Through specific DNA fragmentation quantification and qRT-PCR experiments, we evidenced in vitro an increased resistance to oxidative stress in MSC pre-treated by the PPARβ/δ agonist GW0742 versus naïve MSC. In addition, PPARβ/δ-priming allowed to reveal the anti-apoptotic effect of MSC on cardiomyocytes and endothelial cells in vitro. When injected during reperfusion, in an ex vivo heart model of myocardial infarction, 3.75 × 10<sup>5</sup> PPARβ/δ-primed MSC/heart provided the same cardioprotective efficiency than 7.5 × 10<sup>5</sup> naïve MSC, identified as the optimal dose in our experimental model. This enhanced short-term cardioprotective effect was associated with an increase in both anti-apoptotic effects and the number of MSC detected in the left ventricular wall at 1 h of reperfusion. By contrast, PPARβ/δ inhibition in MSC before their administration in post-ischemic hearts during reperfusion decreased their cardioprotective effects. Conclusion: Altogether these results revealed that PPARβ/δ-primed MSC exhibit an increased resistance to oxidative stress and enhanced anti-apoptotic properties on cardiac cells in vitro. PPARβ/δ-priming appears as an innovative strategy to enhance the cardioprotective effects of MSC and to decrease the therapeutic injected doses. These results could be of major interest to improve MSC efficacy for the cardioprotection of injured myocardium in AMI patients.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/e2346630-f263-421a-bf33-139b22ccda3f
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/52076
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcevol.13 (2022) nr.1 p.167
dc.subjectApoptosis
dc.subjectCardioprotection
dc.subjectMesenchymal stem cells
dc.subjectMyocardial infarction
dc.subjectPPARβ/δ
dc.subjectPriming
dc.subjectReperfusion injury
dc.titlePPARβ/δ priming enhances the anti-apoptotic and therapeutic properties of mesenchymal stromal cells in myocardial ischemia–reperfusion injuryeng
dc.typeArticleeng
dc.typeArtículospa
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