167 0

Thermo-reversible injectable gel based on enzymatically-chopped low molecular weight methylcellulose for exenatide and FGF 21 delivery to treat types 1 and 2 diabetes

Title
Thermo-reversible injectable gel based on enzymatically-chopped low molecular weight methylcellulose for exenatide and FGF 21 delivery to treat types 1 and 2 diabetes
Author
김용희
Keywords
Enzymatically-chopped low molecular weight methylcellulose; Thermo-reversible gel; Protein delivery; Diabetes; HYDROLYZED METHYL CELLULOSE; INSULIN THERAPY; DRUG-DELIVERY; FORMING HYDROGELS; SYSTEMS; PHARMACOKINETICS; REGULATOR; MELLITUS; FAMILY
Issue Date
2014-09
Publisher
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Citation
Journal of Controlled Release, 2014, 194, P.316-322
Abstract
Diabetes is the fastest growing metabolic disease that fails to utilize glucose properly due to insulin deficiency or insulin resistance. Although several limited studies demonstrated non-invasivemeans of protein delivery, major hurdles for commercial success such as short half-life, enzymatic degradation and low bioavailability still remain to overcome. Methylcellulose (MC), a hydrophobically-modified cellulose derivative, forms temperature reversible gel in aqueous solution. However, as the gelling temperature of MC is higher than body temperature, it should be lowered to below body temperature for practical clinical application. In order to decrease gelling temperature and increase bio-compatibility and bio-elimination of MC, the molecular weight of MC was decreased using enzymatic degradation method and confirmed by gel permeation chromatography. Bio-elimination of low molecular weight (LMw) MC was confirmed with non-invasive live image and ex vivo experiment. The exenatide and FGF 21 were physically loaded 100% into LMwMC-based thermo-reversible gel and slowly released from gel with no initial bursts. Exenatide-loaded LMwMC gel showed reduction of blood glucose level for a week in type 1 diabetic animal model. FGF 21-loaded LMwMC gel reduced glucose level to normal condition and maintained over 10 days in type 2 diabetic animal model. LMwMC-based thermo-reversible and injectable hydrogel provides a strong potential to be efficient protein drug delivery system for the treatment of type 1 and type 2 diabetes. (C) 2014 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0168365914006439http://hdl.handle.net/20.500.11754/48894
ISSN
0168-3659; 1873-4995
DOI
10.1016/j.jconrel.2014.09.014
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > BIOENGINEERING(생명공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE