کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7785097 | 1500605 | 2016 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioreducible PEI-functionalized glycol chitosan: A novel gene vector with reduced cytotoxicity and improved transfection efficiency
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Bioreducible PEI-functionalized glycol chitosan: A novel gene vector with reduced cytotoxicity and improved transfection efficiency Bioreducible PEI-functionalized glycol chitosan: A novel gene vector with reduced cytotoxicity and improved transfection efficiency](/preview/png/7785097.png)
چکیده انگلیسی
Non-viral gene delivery has been well recognised as a potential way to address the main safety limitations of viral gene carriers. A new redox-responsive PEI derivative was designed, synthesized and evaluated for non-viral delivery applications of GFP DNA. Glycol chitosan was covalently attached to highly branched LMW PEI via bio-cleavable disulfide bonds to synthesize a new redox-responsive gene carrier (GCS-ss-PEI). Results showed the enhanced buffering capacity of GCS-ss-PEI, 43.1%, compared to the buffering capacities of both LMW PEI and HMW PEI, 23.2% and 31.5%, respectively, indicating more likely endosomal escape of the entrapped gene for GCS-ss-PEI. Moreover, electrophoretic gel retardation assay, performed to investigate the binding strength of GCS-ss-PEI to GFP DNA, showed stronger complexation with GFP DNA in GCS-ss-PEI at non-GSH condition. Employing GCS and incorporation of disulfide bonds in the structure of the PEI-based gene carrier resulted in improved redox-responsivity, reduced toxicity, enhanced endosomal escape and GFP DNA transfection. The facilitated intracellular gene release along with excellent redox-responsive characteristics and dropped cytotoxicity suggests the potential of GCS-ss-PEI as a candidate for developing highly efficient and safe gene vectors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 153, 20 November 2016, Pages 160-168
Journal: Carbohydrate Polymers - Volume 153, 20 November 2016, Pages 160-168
نویسندگان
Shahrouz Taranejoo, Ramya Chandrasekaran, Wenlong Cheng, Kerry Hourigan,