Document Detail

A nanobiohybrid complex of recombinant baculovirus and Tat/DNA nanoparticles for delivery of Ang-1 transgene in myocardial infarction therapy.
MedLine Citation:
PMID:  21840594     Owner:  NLM     Status:  Publisher    
The study aims to design a new gene delivery method utilizing the complementary strengths of baculovirus, such as relatively high transduction efficiency and easy scale-up, and non-viral nanodelivery systems, such as low immunogenicity. This formulation was developed by generating a self assembled binary complex of negatively charged baculovirus (Bac) and positively charged endosomolytic histidine rich Tat peptide/DNA nanoparticles (NP). The synergistic effect of this hybrid (Bac-NP) system to induce myocardial angiogenesis in acute myocardial infarction (AMI) model has been explored in this study, using Angiopoietin-1 (Ang-1) as the transgene carried by both vector components. Under optimal transduction conditions, Bac-NP(Ang1) showed 1.75 times higher and sustained Ang-1 expression in cardiomyocytes than Bac(Ang1), with significantly high angiogenic potential as confirmed by functional assays. For in vivo analysis, we intramyocardially delivered Bac-NP(Ang1) to AMI rat model. 3 weeks post AMI, data showed increase in capillary density (p < 0.01) and reduction in infarct sizes (p < 0.05) in Bac-NP(Ang1) compared to Bac(Ang1), NP(Ang1) and control groups due to enhanced myocardial Ang-1 expression at peri-infarct regions (1.65 times higher than Bac(Ang1)). Furthermore, the Bac-NP(Ang1) group showed significantly higher cardiac performance in echocardiography than Bac(Ang1) (44.2 ± 4.77% vs 37.46 ± 5.2%, p < 0.01), NP(Ang1) and the control group (32.26 ± 2.49% and 31.58 ± 2.26%). Collectively, this data demonstrates hybrid Bac-NP as a new and improved gene delivery system for therapeutic applications.
Arghya Paul; Zyad M Binsalamah; Afshan A Khan; Sana Abbasia; Cynthia B Elias; Dominique Shum-Tim; Satya Prakash
Related Documents :
11391034 - Myocardial revascularization as a therapeutic strategy in the patient with advanced ven...
10909704 - Surgical versus interventional procedures in patients with multivessel coronary artery ...
20172114 - Preoperative atrial fibrillation and elevated c-reactive protein levels as predictors o...
10064354 - Emergency aortocoronary bypass grafting after failed percutaneous transluminal angiopla...
7309534 - A hemodynamic complication of verapamil therapy in a neonate.
1404844 - Precordial st segment elevation in acute ischemia caused by right coronary artery occlu...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-12
Journal Detail:
Title:  Biomaterials     Volume:  -     ISSN:  1878-5905     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8100316     Medline TA:  Biomaterials     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Crown Copyright © 2011. Published by Elsevier Ltd. All rights reserved.
Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering and Artificial Cells and Organs Research Centre, Faculty of Medicine, McGill University, 3775 University Street, Montreal, Quebec H3A 2B4, Canada.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Chitosan-graft-(PEI-?-cyclodextrin) copolymers and their supramolecular PEGylation for DNA and siRNA...
Next Document:  Magnetically enhanced adeno-associated viral vector delivery for human neural stem cell infection.