Enhanced engraftment and repairing ability of human adipose-derived stem cells, conveyed by pharmacologically active microcarriers continuously releasing HGF and IGF-1, in healing myocardial infarction in rats

Journal of Biomedical Materials Research. Part a
Monia SaviEzio Musso

Abstract

One of the main cause of ineffective cell therapy in repairing the damaged heart is the poor yield of grafted cells. To overcome this drawback, rats with 4-week-old myocardial infarction (MI) were injected in the border zone with human adipose-derived stem cells (ADSCs) conveyed by poly(lactic-co-glycolic acid) microcarriers (PAMs) releasing hepatocyte growth factor (HGF) and insulin-like growth factor-1 (IGF-1) (GFsPAMs). According to treatments, animals were subdivided into different groups: MI_ADSC, MI_ADSC/PAM, MI_GFsPAM, MI_ADSC/GFsPAM, and untreated MI_V. Two weeks after injection, a 31% increase in ADSC engraftment was observed in MI_ADSC/PAM compared with MI_ADSC (p < 0.05). A further ADSC retention was obtained in MI_ADSC/GFsPAM with respect to MI_ADSC (106%, p < 0.05) and MI_ADSC/PAM (57%, p < 0.05). A 130% higher density of blood vessels of medium size was present in MI_ADSC/GFsPAM compared with MI_ADSC (p < 0.01). MI_ADSC/GFsPAM also improved, albeit slightly, left ventricular remodeling and hemodynamics with respect to the other groups. Notably, ADSCs and/or PAMs, with or without HGF/IGF-1, trended to induce arrhythmias in electrically driven, Langendorff-perfused, hearts of all groups. Thus, PAMs releasing HGF/IGF...Continue Reading

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Citations

Mar 30, 2016·The Journal of Thoracic and Cardiovascular Surgery·Philippe Menasché
Jun 30, 2015·Journal of Cellular and Molecular Medicine·Cheng-Han ChenReza Ardehali
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May 10, 2017·Materials Science & Engineering. C, Materials for Biological Applications·Hanieh MoradianShahab Faghihi
Apr 18, 2021·Stem Cell Reviews and Reports·Saravanan RameshMurugan Ramalingam

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