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Therapeutic angiogenesis for ischemic syndromes.
Isr Med Assoc J. 2000 Jul; 2 Suppl:52-7.IM

Abstract

Disease caused by atherosclerosis are the most common causes of morbidity and mortality in western societies. The inadequacy of current therapeutic modalities is most pronounced in the significant proportion of patients with arterial obstructive disease, in whom anatomical and technical limitations rule out the possibility of angioplasty or surgery. Therefore, less invasive approaches are necessary to treat these patients. The development of collateral circulation improves blood flow to ischemic tissues and to alleviate ischemia-related symptoms. Our project concentrates on enhancement of the natural mechanism of angiogenesis by adenoviral based vector encoding vascular endothelial growth factor as an angiogenic factor. The aim of our study was to determine the efficacy of human vascular cell infection by adenoviral based vectors in vitro and in vivo. Human saphenous vein endothelial cells and smooth muscle cells were infected by adenoviral vectors encoding the lacZ and VEGF genes (rAdlacZ, rAdVEGF). VEGF expression by adenoviral vector-infected cells was detected by western analysis and its biological activity was examined by proliferation assay. The feasibility of adenoviral based gene transfer in vivo was evaluated after direct femoral artery injection of rAdlacZ in the rat. Vascular endothelial and smooth muscle cells expressed high levels of VEGF following rAdVEGF infection. The mitogenic effect of VEGF was validated by threefold increase in EC proliferation rate in comparison to the control groups. In vivo gene transfer was demonstrated using lacZ gene transfer to arterial wall cells in the superficial femoral artery. Efficient adenoviral based gene delivery was demonstrated both in vitro and in vivo. VEGF over-expression enhanced endothelial cell proliferation, which is the key step for induction of angiogenesis.

Authors+Show Affiliations

Department of Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10909418

Citation

Weisz, A, et al. "Therapeutic Angiogenesis for Ischemic Syndromes." The Israel Medical Association Journal : IMAJ, vol. 2 Suppl, 2000, pp. 52-7.
Weisz A, Koren B, Fischer L, et al. Therapeutic angiogenesis for ischemic syndromes. Isr Med Assoc J. 2000;2 Suppl:52-7.
Weisz, A., Koren, B., Fischer, L., Lewis, B. S., & Flugelman, M. Y. (2000). Therapeutic angiogenesis for ischemic syndromes. The Israel Medical Association Journal : IMAJ, 2 Suppl, 52-7.
Weisz A, et al. Therapeutic Angiogenesis for Ischemic Syndromes. Isr Med Assoc J. 2000;2 Suppl:52-7. PubMed PMID: 10909418.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Therapeutic angiogenesis for ischemic syndromes. AU - Weisz,A, AU - Koren,B, AU - Fischer,L, AU - Lewis,B S, AU - Flugelman,M Y, PY - 2000/7/26/pubmed PY - 2000/8/12/medline PY - 2000/7/26/entrez SP - 52 EP - 7 JF - The Israel Medical Association journal : IMAJ JO - Isr. Med. Assoc. J. VL - 2 Suppl N2 - Disease caused by atherosclerosis are the most common causes of morbidity and mortality in western societies. The inadequacy of current therapeutic modalities is most pronounced in the significant proportion of patients with arterial obstructive disease, in whom anatomical and technical limitations rule out the possibility of angioplasty or surgery. Therefore, less invasive approaches are necessary to treat these patients. The development of collateral circulation improves blood flow to ischemic tissues and to alleviate ischemia-related symptoms. Our project concentrates on enhancement of the natural mechanism of angiogenesis by adenoviral based vector encoding vascular endothelial growth factor as an angiogenic factor. The aim of our study was to determine the efficacy of human vascular cell infection by adenoviral based vectors in vitro and in vivo. Human saphenous vein endothelial cells and smooth muscle cells were infected by adenoviral vectors encoding the lacZ and VEGF genes (rAdlacZ, rAdVEGF). VEGF expression by adenoviral vector-infected cells was detected by western analysis and its biological activity was examined by proliferation assay. The feasibility of adenoviral based gene transfer in vivo was evaluated after direct femoral artery injection of rAdlacZ in the rat. Vascular endothelial and smooth muscle cells expressed high levels of VEGF following rAdVEGF infection. The mitogenic effect of VEGF was validated by threefold increase in EC proliferation rate in comparison to the control groups. In vivo gene transfer was demonstrated using lacZ gene transfer to arterial wall cells in the superficial femoral artery. Efficient adenoviral based gene delivery was demonstrated both in vitro and in vivo. VEGF over-expression enhanced endothelial cell proliferation, which is the key step for induction of angiogenesis. SN - 1565-1088 UR - https://www.unboundmedicine.com/medline/citation/10909418/Therapeutic_angiogenesis_for_ischemic_syndromes_ L2 - http://www.ima.org.il/IMAJ/ViewArticle.aspx?year=2000&month=07&page=52 DB - PRIME DP - Unbound Medicine ER -