Abstract：
:Mesenchymal stromal/stem cell (MSC)-based therapy is a promising approach for the treatment of heart failure. However, current MSC-delivery methods result in poor donor cell engraftment, limiting the therapeutic efficacy. To address this issue, we introduce here a novel technique, epicardial placement of bi-layered, adhesive dressings incorporating MSCs (MSC-dressing), which can be easily fabricated from a fibrin sealant film and MSC suspension at the site of treatment. The inner layer of the MSC dressing, an MSC-fibrin complex, promptly and firmly adheres to the heart surface without sutures or extra glues. We revealed that fibrin improves the potential of integrated MSCs through amplifying their tissue-repair abilities and activating the Akt/PI3K self-protection pathway. Outer collagen-sheets protect the MSC-fibrin complex from abrasion by surrounding tissues and also facilitates easy handling. As such, the MSC-dressing technique not only improves initial retention and subsequent maintenance of donor MSCs but also augment MSC's reparative functions. As a result, this technique results in enhanced cardiac function recovery with improved myocardial tissue repair in a rat ischemic cardiomyopathy model, compared to the current method. Dose-dependent therapeutic effects by this therapy is also exhibited. This user-friendly, highly-effective bioengineering technique will contribute to future success of MSC-based therapy.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Kobayashi K,Ichihara Y,Sato N,Umeda N,Fields L,Fukumitsu M,Tago Y,Ito T,Kainuma S,Podaru M,Lewis-McDougall F,Yamahara K,Uppal R,Suzuki Kdoi
10.1016/j.biomaterials.2019.04.014subject
Has Abstractpub_date
2019-07-01 00:00:00pages
41-53eissn
0142-9612issn
1878-5905pii
S0142-9612(19)30225-Xjournal_volume
209pub_type
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