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Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels.

Publication ,  Journal Article
Channon, KM; Fulton, GJ; Gray, JL; Annex, BH; Shetty, GA; Blazing, MA; Peters, KG; Hagen, PO; George, SE
Published in: Cardiovasc Res
September 1997

OBJECTIVES: Gene therapy may provide new approaches to reduce vein graft failure following coronary or peripheral bypass surgery. The aim of this study was to investigate the relative efficacy of intraoperative adenoviral gene transfer to vein grafts, comparing transgene expression in vein grafts with that in matched native vessels in the same animal. In addition, we assessed the impact of bypass grafting on the cellular targets of gene transfer. METHODS: New Zealand White rabbits underwent interposition bypass grafting of the carotid artery, using the ipsilateral external jugular vein, which was infected with an adenovirus expressing beta-galactosidase immediately prior to bypass grafting (n = 16). The contralateral native jugular vein (n = 16) and carotid artery (n = 8) were infected concurrently with the same adenoviral preparation. After 3, 7 or 14 days, beta-galactosidase protein expression was quantified by ELISA, and specific cell types expressing beta-galactosidase were identified by X-Gal staining and by immunohistochemistry. RESULTS: After 3 days, endothelial cells were efficiently transduced in all vessels; medial smooth muscle cells were transduced infrequently. In contrast to jugular veins after gene transfer, endothelium in vein grafts showed expression of VCAM-1 and ICAM-1, and intense inflammation with CD18+ leukocytes. Transgene expression in vein grafts at day 3 was maintained at levels approximately 50% of that in ungrafted jugular veins, but continued to decrease through day 7. CONCLUSIONS: Although vascular injury in early venous bypass grafts reduces gene transfer efficacy, significant transgene expression is maintained for at least 7 days. These findings have important implications for intraoperative gene transfer strategies in vein grafts.

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Published In

Cardiovasc Res

DOI

ISSN

0008-6363

Publication Date

September 1997

Volume

35

Issue

3

Start / End Page

505 / 513

Location

England

Related Subject Headings

  • beta-Galactosidase
  • Time Factors
  • Rabbits
  • Muscle, Smooth, Vascular
  • Male
  • Jugular Veins
  • Immunohistochemistry
  • Genetic Therapy
  • Gene Transfer Techniques
  • Gene Expression
 

Citation

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Chicago
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MLA
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Channon, K. M., Fulton, G. J., Gray, J. L., Annex, B. H., Shetty, G. A., Blazing, M. A., … George, S. E. (1997). Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels. Cardiovasc Res, 35(3), 505–513. https://doi.org/10.1016/s0008-6363(97)00098-9
Channon, K. M., G. J. Fulton, J. L. Gray, B. H. Annex, G. A. Shetty, M. A. Blazing, K. G. Peters, P. O. Hagen, and S. E. George. “Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels.Cardiovasc Res 35, no. 3 (September 1997): 505–13. https://doi.org/10.1016/s0008-6363(97)00098-9.
Channon KM, Fulton GJ, Gray JL, Annex BH, Shetty GA, Blazing MA, et al. Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels. Cardiovasc Res. 1997 Sep;35(3):505–13.
Channon, K. M., et al. “Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels.Cardiovasc Res, vol. 35, no. 3, Sept. 1997, pp. 505–13. Pubmed, doi:10.1016/s0008-6363(97)00098-9.
Channon KM, Fulton GJ, Gray JL, Annex BH, Shetty GA, Blazing MA, Peters KG, Hagen PO, George SE. Efficient adenoviral gene transfer to early venous bypass grafts: comparison with native vessels. Cardiovasc Res. 1997 Sep;35(3):505–513.
Journal cover image

Published In

Cardiovasc Res

DOI

ISSN

0008-6363

Publication Date

September 1997

Volume

35

Issue

3

Start / End Page

505 / 513

Location

England

Related Subject Headings

  • beta-Galactosidase
  • Time Factors
  • Rabbits
  • Muscle, Smooth, Vascular
  • Male
  • Jugular Veins
  • Immunohistochemistry
  • Genetic Therapy
  • Gene Transfer Techniques
  • Gene Expression