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Transplantation of 3D bio-printed cardiac mesh improves cardiac function and vessel formation via ANGPT1/Tie2 pathway in rats with acute myocardial infarction

Authors
Kim, Kyung SeobJoo, Hyung JoonChoi, Seung-CheolKim, Jong-HoPark, Chi-YeonSong, Myeong-HwaNoh, Ji-MinCha, Jung-JoonHong, Soon JunAhn, Tae HoonKim, Mi-NaNa, Ji EunRhyu, Im JooLim, Do-Sun
Issue Date
10월-2021
Publisher
IOP PUBLISHING LTD
Keywords
3D bio-printing; GelMA-collagen hydrogel; acute myocardial infarction; angiogenesis; graft survival; porous mesh structure
Citation
BIOFABRICATION, v.13, no.4
Indexed
SCIE
SCOPUS
Journal Title
BIOFABRICATION
Volume
13
Number
4
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/136247
DOI
10.1088/1758-5090/ac1e78
ISSN
1758-5082
Abstract
A novel tissue engineering strategy using 3D bio-print technology has become a promising therapeutic method for acute myocardial infarction (AMI) in an animal model. However, the application of 3D bio-printed tissue remains limited due to poor graft survival. Therefore, it is a scientific priority to enhance graft survival by precisely adjusting the 3D environment of encapsulated cells. In this study, novel transplantable 3D cardiac mesh (cMesh) tissue with a porous mesh structure was presented using human cardiomyocytes, human cardiac fibroblasts, and gelatin-methacryloyl-collagen hydrogel. Cardiomyocytes and cardiac fibroblasts were well spreaded. The cardiomyocytes were connected with a gap junction channel in bio-printed cMesh and a 3D cardiac patch with an aggregated structure. Porous cMesh demonstrated structural advantages by increased phosphorylation of mTOR, AKT, and ERK signals associated with cell survival. Transplanted cMesh in rats with AMI improved long-term graft survival, vessel formation, and stabilization, reduced fibrosis, increased left ventricle thickness, and enhanced cardiac function. Our results suggest that porous cMesh provides structural advantages and a positive therapeutic effect in an AMI animal model.
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College of Medicine > Department of Medical Science > 1. Journal Articles
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