Transplantation of Adipose-Derived Stem Cell Sheet Attenuates Adverse Cardiac Remodeling in Acute Myocardial Infarction.
Adipose-derived stem cell (ADSC) transplantation has been proposed to improve cardiac function and acute myocardial infarction (AMI). Recently, cell sheet technology has been investigated for its potential applicability in cardiac injury. However, a detailed comparison of the functional recovery in the injured myocardium between cell sheets and conventional cell injection has not been adequately examined. ADSCs were isolated from the inguinal fat tissue of ICR mice. Three groups of AMI induction only (sham), intramyocardial injection of ADSCs (imADSC), and ADSC sheet transplantation (shADSC) were compared by using rat AMI models. Engraftment of ADSCs was better sustained through 28 days in the shADSC group compared with the imADSC group. Ejection fraction was improved in both imADSC and shADSC groups compared with the sham group. Ventricular wall thickness in the infarct zone was higher in the shADSC group compared with both imADSC and sham groups. Growth factor and cytokine expression in the implanted heart tissue were higher in the shADSC group compared with both imADSC and sham groups. Furthermore, only the shADSC group showed donor-derived vessels at the peri-infarct zone. Taken together, these results indicate that, although shADSC resulted in a similar improvement in left ventricular systolic function, it significantly promoted cellular engraftment and upregulated growth factor and cytokine expression, and, ultimately, attenuated adverse cardiac remodeling in rat AMI models compared with imADSC.
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Jong-Ho
JH
Kim
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Hyung Joon
HJ
Joo
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Mina
M
Kim
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Seung-Cheol
SC
Choi
2 Department of Veterinary Obstetrics and Theriogenology, College of Veterinary Medicine and Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University , Seoul, South Korea .
Jeong Ik
JI
Lee
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Soon Jun
SJ
Hong
1 Department of Cardiology, Cardiovascular Center, College of Medicine, Korea University , Seoul, South Korea .
Do-Sun
DS
Lim
D000273:Adipose Tissue / Q000378:metabolism*; D000818:Animals; D004195:Disease Models, Animal; D005260:Female; D064593:Heterografts; D008297:Male; D008813:Mice, Inbred ICR; D009203:Myocardial Infarction / Q000378:metabolism / Q000503:physiopathology / Q000628:therapy; D017207:Rats, Sprague-Dawley; D033581:Stem Cell Transplantation; D013234:Stem Cells / Q000378:metabolism*; D013318:Stroke Volume; D020257:Ventricular Remodeling
ADSC sheet; acute myocardial infarction; adipose-derived stem cell; cardiac remodeling; engraftment; intramyocardial injection