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Title: Vascular adventitia is a suitable compartment to transplant transduced vascular smooth muscle cells for ex vivo gene expression
Authors: Braga, Patricia Cristina Baleeiro Beltrao [UNIFESP]
Koh, Ivan Hong Jun [UNIFESP]
Silva, MRR
Gutierrez, P. S.
Han, Sang Won [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Keywords: smooth muscle cells
retroviral vector
gene therapy
Issue Date: 1-Jan-2002
Publisher: Cognizant Communication Corp
Citation: Cell Transplantation. Elmsford: Cognizant Communication Corp, v. 11, n. 6, p. 583-592, 2002.
Abstract: Vascular smooth muscle cells (VSMC) are ideal for systemic gene therapy because of their proximity to blood vessels and they have demonstrated long-term exogenous gene expression in vivo. However, the procedure generally followed to seed the transduced VSMC onto arteries denuded of endothelial cells usually induces stenosis and thrombosis, with a consequent high risk for use in humans. We demonstrate here that the vascular adventitia is a suitable place to introduce transduced VSMC and to secrete therapeutic proteins into the blood stream by a simple procedure, avoiding postoperative vascular complications. Transduced VSMC, with the retroviral vectors carrying the human growth hormone gene (hGH), were seeded into the adventitia of the rat abdominal aorta by single injection of a cell suspension. Based on the hGH and anti-hGH production in serum and on histological analysis of the removed aortas, we demonstrated hGH production over the 2-month experimental period. None of the animals used in the experiment showed stenosis, thrombosis, or other vascular or visible physiological abnormalities.
ISSN: 0963-6897
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Appears in Collections:Artigo

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