Therapeutic effects of late outgrowth endothelial progenitor cells or mesenchymal stem cells derived from human umbilical cord blood on infarct repair

INTERNATIONAL JOURNAL OF CARDIOLOGY

卷:203

Article

Kim, Sung-Whan^1,2  Jin, Hong Lian³  Kang, Seok-Min⁴  Kim, Sinyoung⁵  Yoo, Kyung-Jong⁶  Jang, Yangsoo³  Kim, Hyun Ok⁵  Yoon, Young-sup^1,7 

[1] Emory Univ, Sch Med, Div Cardiol, Dept Med, Atlanta, GA 30322 USA

[2] Catholic Kwandong Univ, Coll Med, Dept Med, Kangnung, South Korea

[3] Yonsei Univ, Coll Med, Brain Korea Project Med Sci 21, Seoul, South Korea

[4] Yonsei Univ, Coll Med, Dept Internal Med, Seoul, South Korea

[5] Yonsei Univ, Coll Med, Dept Lab Med, Seoul, South Korea

[6] Yonsei Univ, Coll Med, Dept Cardiovasc Surg, Seoul, South Korea

[7] Yonsei Univ, Coll Med, Severance Biomed Sci Inst, Seoul, South Korea

关键词: Umbilical cord blood;    Late outgrowing endothelial progenitor cells;    Mesenchymal stem cells;    Acute myocardial infarction;    Angiogenesis;   

DOI  :  10.1016/j.ijcard.2015.10.110

来源: Elsevier

【 摘 要 】

Background: This study sought to systematically investigate the derivation of late outgrowth endothelial progenitor cells (late EPC) and mesenchymal stem cells (MSC) from umbilical cord blood (UCB) and to examine their therapeutic effects on myocardial infarction (MI). Methods: The expression of angiogenic genes was determined by qRT-PCR. Myocardial infarction (MI) was induced in rats, and cells were directly transplanted into the border regions of ischemic heart tissue. Results: Culture of UCB mononuclear cells yielded two distinct types of cells by morphology after 2 weeks in the sameculture conditions. These cells were identified as late EPC and MSC, and each was intramyocardially injected into rat hearts after induction of MI. Echocardiography and histologic analyses demonstrated that both EPC and MSC improved cardiac function and enhanced vascularization, although fibrosis was reduced only in the EPC transplanted hearts. Different paracrine factors were enriched in EPC and MSC. However, once injected into the hearts, they induced similar types of paracrine factors in the heart. Transplanted EPC or MSC were mostly localized at the perivascular areas. This study demonstrated that EPC and MSC can be simultaneously derived from UCB under the same initial culture conditions, and that common paracrine factors are involved in the repair of MI. Conclusion: Late EPC and MSC are effective for infarct repair, apparently mediated through common humoral mechanisms. (C) 2015 Elsevier Ireland Ltd. All rights reserved.

【 授权许可】

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