| Intracardiac injection of matrigel induces stem cell recruitment and improves cardiac functions in a rat myocardial infarction model. | |
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MedLine Citation:
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PMID: 20477905 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Matrigel promotes angiogenesis in the myocardium from ischemic injury and prevents remodelling of the left ventricle. We assessed the therapeutic efficacy of intracardiac matrigel injection and matrigel-mediated stem cell homing in a rat myocardial infarction (MI) model. Following MI, matrigel (250 μl) or phosphate-buffered solution (PBS) was delivered by intracardiac injection. Compared to the MI control group (MI-PBS), matrigel significantly improved left ventricular function (n= 11, P < 0.05) assessed by pressure-volume loops after 4 weeks. There is no significant difference in infarct size between MI-matrigel (MI-M; 21.48 ± 1.49%, n = 10) and MI-PBS hearts (20.98 ± 1.25%, n = 10). The infarct wall thickness of left ventricle is significantly higher (P < 0.01) in MI-M (0.72 ± 0.02 mm, n = 10) compared with MI-PBS (0.62 ± 0.02 mm, n = 10). MI-M hearts exhibited higher capillary density (border 130.8 ± 4.7 versus 115.4 ± 6.0, P < 0.05; vessels per high-power field [HPF; 400×], n = 6) than MI-PBS hearts. c-Kit(+) stem cells (38.3 ± 5.3 versus 25.7 ± 1.5 c-Kit(+) cells per HPF [630×], n = 5, P < 0.05) and CD34(+) cells (13.0 ± 1.51 versus 5.6 ± 0.68 CD34(+) cells per HPF [630×], n = 5, P < 0.01) were significantly more numerous in MI-M than in MI-PBS in the infarcted hearts (n = 5, P < 0.05). Intracardiac matrigel injection restores myocardial functions following MI, which may attribute to the improved recruitment of CD34(+) and c-Kit(+) stem cells. |
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Authors:
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Lailiang Ou; Wenzhong Li; Yue Zhang; Weiwei Wang; Jun Liu; Heiko Sorg; Dario Furlani; Ralf Gäbel; Peter Mark; Christian Klopsch; Liang Wang; Karola Lützow; Andreas Lendlein; Klaus Wagner; Doris Klee; Andreas Liebold; Ren-Ke Li; Deling Kong; Gustav Steinhoff; Nan Ma |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-05-14 |
Journal Detail:
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Title: Journal of cellular and molecular medicine Volume: 15 ISSN: 1582-4934 ISO Abbreviation: J. Cell. Mol. Med. Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-05-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101083777 Medline TA: J Cell Mol Med Country: England |
Other Details:
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Languages: eng Pagination: 1310-8 Citation Subset: IM |
Copyright Information:
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© 2011 The Authors Journal of Cellular and Molecular Medicine © 2011 Foundation for Cellular and Molecular Medicine/Blackwell Publishing Ltd. |
Affiliation:
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Reference- and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock, Rostock, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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