کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10614772 | 987173 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formulation and characterization of naked DNA and complexed DNA loaded polymer films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Sustained release of DNA from polymeric films is of considerable interest for enhanced and prolonged gene therapy. This report describes the detailed studies of the formulation of naked plasmid DNA (pDNA) and complexed DNA-incorporated polymer films and in vitro release of the DNA. The effect of hydrophilic polymers (PEG, HA) also studied to modulate the release of pDNA and complexed DNA (lipoplex) from slow biodegradable polymer (PCL) films. The polymer system consists of a biodegradable semi-crystalline polymer (PCL) blended with a hydrophilic polymer such as poly (ethylene glycol) (PEG) or hyaluronic acid (HA). For the release of pDNA (naked DNA), a burst effect was always seen, and the addition of HA and PEG did not suppress the burst release of pDNA from PCL films. For complexed pDNA (lipoplex), the release was slow, but it could be accelerated using additives such as PEG or HA. The transfection efficiency of the complexed DNA and the naked pDNA was determined in vitro using COS 7Â cells to evaluate the bioactivity of the released DNA. Transfection was observed from released lipoplexes samples from PCL/HA film. Overall, this work suggested that these polymeric DNA delivery systems are promising for the local sustained release of DNA from implanted films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 31, Issue 2, 12 March 2011, Pages 224-229
Journal: Materials Science and Engineering: C - Volume 31, Issue 2, 12 March 2011, Pages 224-229
نویسندگان
Debasish Mondal, Subbu S. Venkatraman,