0000000000530771

AUTHOR

Eric Chevalier

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C-X-C Motif Chemokine Receptor 4 Blockade Promotes Tissue Repair After Myocardial Infarction by Enhancing Regulatory T Cell Mobilization and Immune-R…

2019

Background: Acute myocardial infarction (MI) elicits an inflammatory response that drives tissue repair and adverse cardiac remodeling. Inflammatory cell trafficking after MI is controlled by C-X-C motif chemokine ligand 12 (CXCL12) and its receptor, C-X-C motif chemokine receptor 4 (CXCR4). CXCR4 antagonists mobilize inflammatory cells and promote infarct repair, but the cellular mechanisms are unclear. Methods: We investigated the therapeutic potential and mode of action of the peptidic macrocycle CXCR4 antagonist POL5551 in mice with reperfused MI. We applied cell depletion and adoptive transfer strategies using lymphocyte-deficient Rag1 knockout mice; DEREG mice, which express a diphth…

Receptors CXCR4Regulatory T cellCXCR4 antagonistSus scrofaAnti-Inflammatory AgentsMyocardial InfarctionNeovascularization PhysiologicMice TransgenicInflammation030204 cardiovascular system & hematologyT-Lymphocytes RegulatoryVentricular Function Left03 medical and health sciencesChemokine receptor0302 clinical medicineImmune systemPhysiology (medical)medicineAnimalsMyocardial infarction030304 developmental biology0303 health sciencesMobilizationVentricular Remodelingbusiness.industryMyocardiumProteinsDendritic CellsRecovery of FunctionRegulatory T cellsTissue repairmedicine.diseaseMyocardial ContractionBlockadeMice Inbred C57BLDisease Models Animalmedicine.anatomical_structureCancer researchmedicine.symptomCardiology and Cardiovascular MedicinebusinessSignal TransductionCirculation
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