کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8513940 | 1556501 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
PEGylation of the GALA Peptide Enhances the Lung-Targeting Activity of Nanocarriers That Contain Encapsulated siRNA
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کلمات کلیدی
PEGylationED50HMVEC-LDNA/oligonucleotide deliverysiRNA - siRNAGene delivery - انتقال ژن Endothelial - اندوتلیالBiomaterials - بیومتریال، بیومواد multifunctional envelope-type nano device - دستگاه نانوپارک چند منظورهNanotechnology - فناوری نانوMEND - مرمت کردنNanoparticles - نانوذراتpolyethyleneglycol - پلی اتیلن گلیکولPEG - پلیاتیلن گلیکول GalA - گالا
موضوعات مرتبط
علوم پزشکی و سلامت
داروسازی، سم شناسی و علوم دارویی
اکتشاف دارویی
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چکیده انگلیسی
A α-helical GALA peptide (WEAALAEALAEALAEHLAEALAEALEALAA) has been found to possess dual functions: a pH-dependent inducer of endosomal escape, and a ligand that targets lung endothelium. In the present study, the flexibility of GALA was improved by modifying the edge with polyethylene glycol linker, to increase lung-targeting activity. We first investigated the uptake of the GALA-modified liposomes in which GALA was directly conjugated to the lipid (Cholesterol: GALA/Chol) or the phospholipid-PEG (GALA/PEG2000). The liposomes that were modified with GALA/PEG2000 (GALA/PEG2000-LPs) were taken up at a higher level by human lung endothelial cells (HMVEC-L), in comparison with particles that were modified with GALA/Chol (GALA/Chol-LPs). Small-interfering RNA-encapsulating liposomal-based nanocarriers (multifunctional envelope-type nano device: MEND) that were formulated with a vitamin E-scaffold SS-cleavable pH-activated lipid-like material, namely GALA/PEG2000-MENDssPalmE were also modified with GALA/PEG2000. Gene silencing activity in the lung endothelium was then evaluated against an endothelial marker; CD31. In comparison with the unmodified MENDssPalmE, GALA/PEG2000-MENDssPalmE exhibited a higher silencing activity in the lung. Optimization of GALA/PEG2000-MENDssPalmE resulted in silencing activity in the lung with an ED50 value of 0.21 mg/kg, while non-specific gene silencing in liver was marginal. Collectively, PEGylated GALA is a promising device for use in targeting the lung endothelium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 106, Issue 9, September 2017, Pages 2420-2427
Journal: Journal of Pharmaceutical Sciences - Volume 106, Issue 9, September 2017, Pages 2420-2427
نویسندگان
Sarochin Santiwarangkool, Hidekata Akita, Taichi Nakatani, Kenji Kusumoto, Hiroki Kimura, Masaru Suzuki, Masaharu Nishimura, Yusuke Sato, Hideyoshi Harashima,