کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2506161 1557516 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Intrapericardial administration of novel DNA formulations based on thermosensitive Poloxamer 407 gel
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی علوم دارویی
پیش نمایش صفحه اول مقاله
Intrapericardial administration of novel DNA formulations based on thermosensitive Poloxamer 407 gel
چکیده انگلیسی

Inherited cardiopathies are leading to life-threatening conditions such as heart failure. Moreover, treatments currently available fail in altering the cardiac phenotype. Thus, gene therapy appears as an attracting alternative to conventional treatments. However, gene delivery remains a major hurdle in achieving this goal. To obtain regional delivery of plasmid DNA, intrapericardial administration seems to be an interesting approach. In order to improve retention time at the site of injection, formulations based on a thermosensitive gel of Poloxamer 407 were assessed. Protection and condensation of plasmid DNA was initially performed through complexation with polyethyleneimine (PEI), a widely used polymer. Characterization of the size and zeta potential of the complexes suggested interactions between the polyplexes and the Poloxamer gel through significant increase of the size of the polyplexes and shielding of the surface charges. In vivo evaluation has highlighted the toxicity of PEI/DNA polyplexes toward the myocardium. However, feasibility of intrapericardial injection of Poloxamer based formulations as well as their very low toxicity has been established.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pharmaceutics - Volume 331, Issue 2, 1 March 2007, Pages 220–223
نویسندگان
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