2020
Delivering More of an Injectable Human Recombinant Collagen III Hydrogel Does Not Improve Its Therapeutic Efficacy for Treating Myocardial Infarction
PUPKAITE, J; Veronika SEDLÁKOVÁ; CE CIMENCI; M BAK; S MCLAUGHLIN et al.Základní údaje
Originální název
Delivering More of an Injectable Human Recombinant Collagen III Hydrogel Does Not Improve Its Therapeutic Efficacy for Treating Myocardial Infarction
Autoři
PUPKAITE, J; Veronika SEDLÁKOVÁ; CE CIMENCI; M BAK; S MCLAUGHLIN; M RUEL; EI ALARCON a EJ SUURONEN
Vydání
ACS BIOMATERIALS SCIENCE & ENGINEERING, WASHINGTON, AMER CHEMICAL SOC, 2020, 2373-9878
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.749
Označené pro přenos do RIV
Ne
UT WoS
Klíčová slova anglicky
myocardial infarction; injectable hydrogel; collagen type III; scar; vascularization
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 26. 1. 2022 10:05, MUDr. Veronika Sedláková, Ph.D.
Anotace
V originále
Injectable hydrogels are a promising method to enhance repair in the heart after myocardial infarction (MI). However, few studies have compared different strategies for the application of biomaterial treatments. In this study, we use a clinically relevant mouse MI model to assess the therapeutic efficacy of different treatment protocols for intramyocardial injection of a recombinant human collagen III (rHCIII) thermoresponsive hydrogel. Comparing a single hydrogel injection at an early time point (3 h) versus injections at multiple time points (3 h, 1 week, and 2 weeks) post-MI revealed that the single injection group led to superior cardiac function, reduced scar size and inflammation, and increased vascularization. Omitting the 3 h time point and delivering the hydrogel at 1 and 2 weeks post-MI led to poorer cardiac function. The positive effects of the single time point injection (3 h) on scar size and vascular density were lost when the hydrogel's collagen concentration was increased from 1% to 2%, and it did not confer any additional functional improvement. This study shows that early treatment with a rHCIII hydrogel can improve cardiac function post-MI but that injecting more rHCIII (by increased concentration or more over time) can reduce its efficacy, thus highlighting the importance of investigating optimal treatment strategies of biomaterial therapy for MI.