Combined therapy with human cord blood cell transplantation and basic fibroblast growth factor delivery for treatment of myocardial infarction

Seung Woo Cho, Il Kwon Kim, Suk Ho Bhang, Boyoung Joung, Young Jin Kim, Kyung Jong Yoo, Yoon Sun Yang, Cha Yong Choi, Byung Soo Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Background: Transplanting cord blood-derived cells has been shown to augment neovascularization in ischaemic tissue. Aim: To test whether sustained delivery of basic fibroblast growth factor (bFGF) enhances the efficacy of angiogenic cord blood mononuclear cell (CBMNC) transplantation therapy in treating myocardial infarction. Methods: Three weeks after myocardial infarction, Sprague-Dawley rats were randomised to either injection of medium only (control), CBMNC transplantation, sustained bFGF delivery, or combined CBMNC transplantation and sustained bFGF delivery. Six weeks after treatment, tissue formation, neovascularization, and apoptotic activity in the infarct regions were evaluated by histology and immunohistochemistry. Left ventricular (LV) dimensions and function were evaluated by magnetic resonance imaging. Results: Combined bFGF delivery and CBMNC transplantation significantly enhanced neovascularization in the ischaemic myocardium, as compared with either therapy alone. The enhanced neovascularization was likely due to increased VEGF and bFGF expression. The combined therapy also exhibited a reduced infarct area and apoptosis in the ischaemic myocardium, as compared with either individual therapy. The combined therapy did not attenuate LV dilation or increase ejection fraction significantly over either individual therapy. Conclusion: This study demonstrates that sustained bFGF delivery enhances the angiogenic efficacy of CBMNC transplantation in rat myocardial infarction models.

Original languageEnglish
Pages (from-to)974-985
Number of pages12
JournalEuropean Journal of Heart Failure
Volume9
Issue number10
DOIs
Publication statusPublished - 2007 Oct 1

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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