Abstract:
:Targeted expression of genetic material within the vascular endothelium is potentially a powerful tool for the investigation of endothelial cell (EC) biology. We developed, optimized, and characterized an efficient somatic transgenic model of EC-specific gene transfer. Rat carotid arteries were infused with adenovirus expressing a beta-galactosidase (beta-gal) gene. The level and cell-type specificity of recombinant gene expression were measured by assaying beta-gal activity in vessel extracts and by counting transduced cells in histological sections. Toxicity was evaluated by counting total ECs (3 days) and by measuring neointimal formation (14 days). Effects of transduction on the proliferation of vascular cells were measured with bromodeoxyuridine and [3H]thymidine. Maximum recombinant gene expression resulted from infusion of 1 x 10(10) to 1 x 10(11) plaque-forming units (pfu) per milliliter; approximately 35% of luminal ECs were transduced. A high degree of EC specificity (90% to 98% of total transduced cells) was maintained over this range of virus concentrations. More highly concentrated virus resulted in loss of beta-gal expression and a large decrease in luminal EC number (97% decrease, P < .001). Gene transfer at 4 x 10(10) pfu/mL was efficient, preserved EC integrity, and caused minimal neointimal formation. After gene transfer, there were early (3-day) increases in both EC and smooth muscle cell proliferation. At 14 days, only EC proliferation remained elevated (18% versus 1.4% in vehicle-infused arteries, P = .005). This animal model permits efficient highly EC-specific gene transfer. Vascular toxicity is minimal, although the EC proliferative index is elevated. This model will be useful in experiments that elucidate the biological role of EC gene products and define pathways of EC gene regulation and signal transduction in vivo.
journal_name
Circ Resjournal_title
Circulation researchauthors
Schulick AH,Dong G,Newman KD,Virmani R,Dichek DAdoi
10.1161/01.res.77.3.475subject
Has Abstractpub_date
1995-09-01 00:00:00pages
475-85issue
3eissn
0009-7330issn
1524-4571journal_volume
77pub_type
杂志文章abstract::The aims of the current study were to examine the efficacy of acetylcholine (ACh) to mimic ischemic preconditioning in dogs and to determine the role of nitric oxide (NO), muscarinic receptors, and ATP-sensitive K+ (KATP) channels in mediating its effects. Barbital-anesthetized open-chest dogs were subjected to 60 min...
journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.73.6.1193
更新日期:1993-12-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1995-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1161/01.res.81.4.493
更新日期:1997-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:2004-12-10 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.118.313283
更新日期:2018-11-09 00:00:00
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更新日期:2004-10-29 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.61.2.244
更新日期:1987-08-01 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.87.6.480
更新日期:2000-09-15 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.85.12.1139
更新日期:1999-12-03 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2012-03-02 00:00:00
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pub_type: 杂志文章
doi:10.1161/01.RES.0000233315.38086.bc
更新日期:2006-07-21 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.107.169573
更新日期:2008-04-25 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章,收录出版
doi:10.1161/01.res.48.2.286
更新日期:1981-02-01 00:00:00
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pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.116.304899
更新日期:2015-02-13 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.109.206045
更新日期:2010-04-16 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章,评审
doi:10.1161/CIRCRESAHA.116.305421
更新日期:2015-05-22 00:00:00
abstract::The atrioventricular (AV) node is a recurrent source of potentially life-threatening arrhythmias. Nevertheless, limited data are available on its developmental control or molecular phenotype. We used a novel AV nodal myocardium-specific reporter mouse to gain insight into the gene programs determining the formation an...
journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.108.192443
更新日期:2009-07-02 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.117.305781
更新日期:2015-07-31 00:00:00
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pub_type: 杂志文章
doi:10.1161/01.res.49.2.326
更新日期:1981-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1161/01.res.49.1.141
更新日期:1981-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:1998-07-13 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.58.6.839
更新日期:1986-06-01 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章,评审
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更新日期:2007-06-08 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.64.6.1127
更新日期:1989-06-01 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/CIRCRESAHA.112.275586
更新日期:2013-01-04 00:00:00
abstract::Complete knowledge of myocardial structure, metabolism, and function is crucial to understanding the response of the heart to injury such as ischemia. Increasingly, this type of knowledge is required at multiple levels, from that of the isolated myocyte to the functioning organism, to provide basic scientists and clin...
journal_title:Circulation research
pub_type: 杂志文章,评审
doi:10.1161/01.RES.0000103863.40055.E8
更新日期:2003-12-12 00:00:00
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journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.res.0000013835.53611.97
更新日期:2002-03-22 00:00:00
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pub_type: 杂志文章
doi:10.1161/01.RES.0000097262.21507.DF
更新日期:2003-10-17 00:00:00
abstract::Vascular endothelial growth factors (VEGFs) and their receptors have emerged as central regulators of the angiogenic process. However, involvement of VEGF-B, one of these factors, in angiogenesis remains obscure. Mice received subcutaneous injection of Matrigel alone or Matrigel with human recombinant protein rhVEGF-B...
journal_title:Circulation research
pub_type: 杂志文章
doi:10.1161/01.RES.0000081594.21764.44
更新日期:2003-07-25 00:00:00