Abstract:
:Catheter-based percutaneous transluminal gene delivery (PTGD) into the coronary artery still falls behind the expectations of an efficient myocardial gene delivery system. In this study gene delivery was applied by selective pressure-regulated retroinfusion through the coronary veins to prolong adhesion of replication defective adenovirus within the targeted myocardium. Adenoviral vectors consisted either of luciferase (Ad.rsv-Luc) or beta-galactosidase (Ad.rsv-betaGal) reporter gene under control of an unspecific promotor derived from the Rous sarcoma virus (RSV). In this pig model, selective retrograde gene delivery into the anterior cardiac vein during a brief period of ischemia substantially increased reporter gene expression in the targeted myocardium (LAD region) compared with antegrade delivery as a control. Repeated retrograde delivery during two periods of brief ischemia resulted in a more homogeneous transmural expression predominantly observed in cardiomyocytes (X-gal-staining). In the nontargeted myocardium (CX region) there was no evidence for adenoviral transfection. From our data we infer that selective pressure-regulated retroinfusion is a promising approach for efficient percutaneous transluminal gene delivery to the myocardium. Gene Therapy (2000) 7, 232-240.
journal_name
Gene Therjournal_title
Gene therapyauthors
Boekstegers P,von Degenfeld G,Giehrl W,Heinrich D,Hullin R,Kupatt C,Steinbeck G,Baretton G,Middeler G,Katus H,Franz WMdoi
10.1038/sj.gt.3301079keywords:
subject
Has Abstractpub_date
2000-02-01 00:00:00pages
232-40issue
3eissn
0969-7128issn
1476-5462journal_volume
7pub_type
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