Document Detail

Suicide gene-mediated sequencing ablation revealed the potential therapeutic mechanism of induced pluripotent stem cell-derived cardiovascular cell patch post-myocardial infarction.
MedLine Citation:
PMID:  24787391     Owner:  NLM     Status:  In-Data-Review    
RESULTS: In vivo: bi-cell patch containing induced pluripotent stem cell (iPSC)-derived CM and EC (BIC) was transplanted onto the infarcted heart. BIC were transduced with herpes simplex virus thymidine kinase "suicide" gene driven by cardiac NCX1 or endothelial vascular endothelium-cadherin promoter. IGF-1α and VEGF levels released from ischemic tissues were significantly enhanced in the BIC patch treatment group. Heart function, infarction size, and vessel density were significantly improved after BIC patch treatment. These effects were completely abolished in the group given ganciclovir (GCV) at week 1 as a suicide gene activator, and partially abolished in the group given GCV at week 3 as compared with the untreated cell patch group.
INNOVATION: This study was designed to distinguish between cell-based and noncell-based therapeutic effects of PC lineages after MI. PCs derived from iPSC were genetically modified to express "suicide" gene. iPSC-derived CM and EC were then ablated in situ at week 1 and 3 by intraperitoneal administration of GCV. This enabled direct assessment of the effects of iPSC transplantation on myocardial function and tissue regeneration potential.
CONCLUSIONS: Data support a mechanism in which iPSC-derived cardiovascular lineages contribute directly to improved cardiac performance and attenuated remodeling. Paracrine factors provide additional support to the restoration of heart function. Antioxid. Redox Signal. 21, 2177-2191.
Yuhua Wang; Wei Huang; Jialiang Liang; Zhili Wen; Dehua Chang; Kai Kang; Jiapeng Wang; Meifeng Xu; Ronald W Millard; Yigang Wang
Publication Detail:
Type:  Journal Article     Date:  2014-08-13
Journal Detail:
Title:  Antioxidants & redox signaling     Volume:  21     ISSN:  1557-7716     ISO Abbreviation:  Antioxid. Redox Signal.     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-11-08     Completed Date:  -     Revised Date:  2014-12-01    
Medline Journal Info:
Nlm Unique ID:  100888899     Medline TA:  Antioxid Redox Signal     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2177-91     Citation Subset:  IM    
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