کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2484623 | 1114321 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of PEGylated Exendin-4 Released from Poly (Lactic-co-Glycolic Acid) Microspheres for Antidiabetic Therapy
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
داروسازی، سم شناسی و علوم دارویی
اکتشاف دارویی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Evaluation of PEGylated Exendin-4 Released from Poly (Lactic-co-Glycolic Acid) Microspheres for Antidiabetic Therapy Evaluation of PEGylated Exendin-4 Released from Poly (Lactic-co-Glycolic Acid) Microspheres for Antidiabetic Therapy](/preview/png/2484623.png)
چکیده انگلیسی
Peptide-based therapies have the potential to induce antibody formation if the molecules differ from a native human peptide. Several reports have disclosed the occurrence of antibody generation in a patient treated with exenatide. The immune response can be problematic from a clinical stand point, particularly if the antibodies neutralize the efficacy of the biotherapeutic agent or cause a general immune reaction. To overcome this limit, PEGylated exendin-4 analogs were designed and examined for metabolic stability and biological activity. To develop an extended release delivery system for exendin-4 for the safe and effective delivery of bioactive exendin-4 without peptide acylation and immunogenicity, PEGylated exendin-4 was encapsulated into poly (lactic-co-glycolic acid) (PLGA) microspheres by w/o/w double emulsion solvent evaporation method. Peptide-loaded microspheres were characterized in terms of morphology, particle diameter, and peptide encapsulation efficiency. Then, the release profile of the peptide from PLGA microspheres and the acylated products from PLGA polymer degradation was determined. The results obtained showed that the stability of exendin-4 was greatly improved by PEGylation. Moreover, eliminated acylation during PLGA polymer degradation in vitro and reduced immunogenicity in vivo were observed. The findings demonstrate that PEGylated exendin-4-loaded microspheres may be a safe and biocompatible system for clinical development. © 2014 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 104:72-80, 2015
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 104, Issue 1, January 2015, Pages 72-80
Journal: Journal of Pharmaceutical Sciences - Volume 104, Issue 1, January 2015, Pages 72-80
نویسندگان
Sung Mook Lim, Ha Na Eom, Hai Hua Jiang, Minji Sohn, Kang Choon Lee,