Home > Articles > Published articles > Local administration of porcine immunomodulatory, chemotactic and angiogenic extracellular vesicles using engineered cardiac scaffolds for myocardial infarction |
Date: | 2021 |
Abstract: | The administration of extracellular vesicles (EV) from mesenchymal stromal cells (MSC) is a promising cell-free nanotherapy for tissue repair after myocardial infarction (MI). However, the optimal EV delivery strategy remains undetermined. Here, we designed a novel MSC-EV delivery, using 3D scaffolds engineered from decellularised cardiac tissue as a cell-free product for cardiac repair. EV from porcine cardiac adipose tissue-derived MSC (cATMSC) were purified by size exclusion chromatography (SEC), functionally analysed and loaded to scaffolds. cATMSC-EV markedly reduced polyclonal proliferation and pro-inflammatory cytokines production (IFNγ, TNFα, IL12p40) of allogeneic PBMC. Moreover, cATMSC-EV recruited outgrowth endothelial cells (OEC) and allogeneic MSC, and promoted angiogenesis. Fluorescently labelled cATMSC-EV were mixed with peptide hydrogel, and were successfully retained in decellularised scaffolds. Then, cATMSC-EV-embedded pericardial scaffolds were administered in vivo over the ischemic myocardium in a pig model of MI. Six days from implantation, the engineered scaffold efficiently integrated into the post-infarcted myocardium. cATMSC-EV were detected within the construct and MI core, and promoted an increase in vascular density and reduction in macrophage and T cell infiltration within the damaged myocardium. The confined administration of multifunctional MSC-EV within an engineered pericardial scaffold ensures local EV dosage and release, and generates a vascularised bioactive niche for cell recruitment, engraftment and modulation of short-term post-ischemic inflammation. |
Grants: | Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-301 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-1427 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-483 Ministerio de Economía y Competitividad SAF2017-84324-C2-1-R Ministerio de Economía y Competitividad PID2019-110137RB-I00 Ministerio de Economía y Competitividad PID2019-107145RB-I00 Instituto de Salud Carlos III PI17-01487 Instituto de Salud Carlos III PIC18-00014 Instituto de Salud Carlos III ICI19-00039 Instituto de Salud Carlos III PI18-00256 Instituto de Salud Carlos III PI18-01227 Instituto de Salud Carlos III ICI20-00135 Instituto de Salud Carlos III RD16-0009 Instituto de Salud Carlos III RD16-0011-0006 Instituto de Salud Carlos III CB16-11-00403 Agència de Gestió d'Ajuts Universitaris i de Recerca 2019-PROD-00122 Instituto de Salud Carlos III CPII15-00003 Instituto de Salud Carlos III PI16-00981 |
Note: | Altres ajuts: This work was supported in part by grants from Fundació la Marató de TV3 (201516-10, 201502-30). |
Note: | Altres ajuts: PERIS/SLT002-16-00234 |
Note: | Altres ajuts: PERIS/SLT002-16-00209 |
Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Language: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Subject: | Exosomes ; Mesenchymal stem/stromal cells ; Migration ; Infiltration ; Cardiac tissue engineering |
Published in: | Bioactive Materials, Vol. 6 (march 2021) , p. 3314-3327, ISSN 2452-199X |
14 p, 12.2 MB |