Key result
Hydrogel-loaded dendritic cell-derived exosomes significantly prolonged in vivo retention and improved cardiac function after myocardial infarction by activating Treg cells and promoting M2 macrophage polarization.
Why the study?
Dendritic cell-derived exosomes may improve cardiac function after myocardial infarction, but their therapeutic use is limited by low retention times and short-lived effects.
Does a hydrogel delivery system for dendritic cell-derived exosomes improve cardiac function in a mouse model of myocardial infarction?
Population
MI model mice and in vitro models
Comparison
Alginate hydrogel incorporating dendritic cell-derived exosomes (DEXs-Gel) vs DEXs
Design
Preclinical in vitro and in vivo animal study
Authors
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Alginate hydrogel may sustain DEX release post-MI in vitro; leaves open clinical translation and in vivo efficacy.
Does a hydrogel delivery system for dendritic cell-derived exosomes improve cardiac function in a mouse model of myocardial infarction?
A novel alginate hydrogel delivery system for dendritic cell-derived exosomes improves cardiac function post-MI by modulating Treg cells and macrophage polarization in a preclinical model.
Zhang et al. (2021) studied Myocardial infarction. Hydrogel-loaded dendritic cell-derived exosomes (DEXs-Gel) vs. DEXs alone, Gel alone, or MI control was evaluated on Cardiac function (LVEF and LVFS) and infarct size. Hydrogel-loaded dendritic cell-derived exosomes significantly prolonged in vivo retention and improved cardiac function after myocardial infarction by activating Treg cells and promoting M2 macrophage polarization.
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