Abstract:
:Despite the success of current therapies for acute myocardial infarction (MI), many patients still develop adverse cardiac remodeling and heart failure. With the growing prevalence of heart failure, a new therapy is needed that can prevent remodeling and support tissue repair. Herein, we report on injectable recombinant human collagen type I (rHCI) and type III (rHCIII) matrices for treating MI. Injecting rHCI or rHCIII matrices in mice during the late proliferative phase post-MI restores the myocardium's mechanical properties and reduces scar size, but only the rHCI matrix maintains remote wall thickness and prevents heart enlargement. rHCI treatment increases cardiomyocyte and capillary numbers in the border zone and the presence of pro-wound healing macrophages in the ischemic area, while reducing the overall recruitment of bone marrow monocytes. Our findings show functional recovery post-MI using rHCI by promoting a healing environment, cardiomyocyte survival, and less pathological remodeling of the myocardium.
journal_name
Nat Communjournal_title
Nature communicationsauthors
McLaughlin S,McNeill B,Podrebarac J,Hosoyama K,Sedlakova V,Cron G,Smyth D,Seymour R,Goel K,Liang W,Rayner KJ,Ruel M,Suuronen EJ,Alarcon EIdoi
10.1038/s41467-019-12748-8subject
Has Abstractpub_date
2019-10-25 00:00:00pages
4866issue
1issn
2041-1723pii
10.1038/s41467-019-12748-8journal_volume
10pub_type
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