کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9774667 | 1509091 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Soluble Flt-1 gene delivery using PEI-g-PEG-RGD conjugate for anti-angiogenesis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Vascular endothelial growth factor (VEGF), a potent angiogenic molecule specific for vascular endothelial cells, is overexpressed in most tumors and closely associated with tumor growth and metastasis. It has been shown that a soluble fragment of VEGF receptor Flt-1 (sFlt-1) has anti-angiogenic properties by way of its antagonist activity against VEGF. In the present study, we demonstrated that the stable expression of sFlt-1 by endothelial cell targeted non-viral gene delivery inhibited the angiogenesis of endothelial cells. A targeted polymeric gene delivery system, PEI-g-PEG-RGD, was developed by incorporating the ανβ3/ανβ5 integrin-binding RGD peptide, ACDCRGDCFC (single-letter amino acid code), into the cationic polymer, polyethylenimine (PEI) via a hydrophilic polyethylene glycol (PEG) spacer. The functional analysis of therapeutic gene encoding sFlt-1/carrier complex was performed with an endothelial cell proliferation assay. The complex of sFlt-1 gene with PEI-g-PEG-RGD conjugate efficiently inhibited the proliferation of cultured endothelial cells, representing that expressed sFlt-1 predominantly bound to exogenous VEGF and blocked the binding of VEGF to the full-length Flt-1 receptor. These findings suggest that the combination of targeted gene carrier and sFlt-1 possesses the potential to be an efficient tool for the anti-angiogenic gene therapy to treat cancer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Controlled Release - Volume 106, Issues 1â2, 18 August 2005, Pages 224-234
Journal: Journal of Controlled Release - Volume 106, Issues 1â2, 18 August 2005, Pages 224-234
نویسندگان
Won Jong Kim, James W. Yockman, Minhyung Lee, Ji Hoon Jeong, Yong-Hee Kim, Sung Wan Kim,