Abstract
This study was designed to compare the efficacy of intraventricular (IV), intramyocardial (IM) or combined IV and IM injections of human adipose tissue-derived stem cells (hADSCs) administered either immediately, 5, or 10 days after induction of acute myocardial infarction (AMI) in a nude rat model. Acute myocardial infarction was induced in 99, adult (250–350 g BW), male nude rats strain Crl:NIH-Fox1RNU. Rats received either no cells (group I, n = 15) or 2 million, hADSCs as follows: group II (n = 19) IV injection immediately after AMI; group III (n = 18) IV injection 5 days after AMI; group IV (n = 15) IV injection 5 days and IM injection 10 days after AMI; group V (n = 17) IV injection immediately after AMI and IM injection 10 days after AMI and group VI (n = 15) IM injection 10 days after AMI. Tissue sections from hearts were studied using H&E and immunohistochemistry. In the control group, there was a tendency toward granulation tissue formation, active phagocytosis, and variable angiogenesis when evaluated at 10 days, early fibrosis when evaluated at 30 days, and established fibrosis when evaluated at 60 days. However, hADSC-treated groups showed a tendency toward cardiomyocyte regeneration and prominent angiogenesis when evaluated at 10 days and smaller infarction size when evaluated at 30 and 60 days. The present study showed a significantly decreased amount of scar tissue following myocardial infarction and enhanced regenerative capacity of myocardial cells following a single, intraventricular injection of 2 million hADSCs immediately after AMI.





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Discover the latest articles and news from researchers in related subjects, suggested using machine learning.Abbreviations
- AMI:
-
Acute myocardial infarction
- BMSCs:
-
Bone marrow-derived stem cells
- hADSCs:
-
Human adipose tissue-derived stem cells
- JUST-ACUC:
-
Institutional animal care and use committee of Jordan University of Science and Technology
- LAD:
-
Left descending coronary artery
- PBS:
-
Phosphate-buffered saline
- LVEDD:
-
Left ventricular end diastolic dimension
- LVESD:
-
Left ventricular end systolic dimension
- FS %:
-
Fraction of shortening
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Acknowledgments
This project was sponsored by Bioheart, Inc, USA. The authors would like to thank the sponsors, University of Jordan, Jordan University of Science and Technology, Dr. Omar Alshobaki, The Animal House staff and animal care takers, Professor Abdallah Abbadi, Director of Hematology and stem cell laboratory University of Jordan, Faculty of Medicine, Mr. Mohammad Al-Zu'bi and Miss Shereen Kklouf for their help and hard work.
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Abu-Abeeleh, M., Matalka, I., Bani Ismail, Z.A. et al. Efficacy of human adipose tissue-derived stem cells in cardiac muscle repair in an experimental acute myocardial infarction model using nude rats (Crl:NIH-Fox1RNU). Comp Clin Pathol 19, 593–600 (2010). https://doi.org/10.1007/s00580-009-0927-3
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DOI: https://doi.org/10.1007/s00580-009-0927-3


