Document Detail


Acrylate-tethering drug carrier: Covalently linking carrier to biological surface and application in the treatment of Helicobacter pylori infection.
MedLine Citation:
PMID:  25300443     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The development of carriers to sustain drugs at stomach surface is an attractive strategy to increase drug bioavailability locally and systematically. So far, the only reported carrier that can form covalent bond with mucus, the thiolated carrier, relies on a reversible disulfide exchange reaction between thiols on the carrier and disulfide bridges on the mucus. Here we show the design and fabrication of a cellulose carrier with tethering acrylate groups (denoted here as clickable carrier) that, under a non-toxic condition, can efficiently react with thiols on biomaterials in situ through the thermodynamically driven and kinetically probable Michael thiol-ene click reaction. Here we show the attachments of the clickable carriers to a mucin protein, a surface of Human laryngeal carcinoma cells, and a surface of a fresh porcine stomach. We also show that the required thiol moieties can be generated in situ by reducing existing cystine disulfide bridges with either the edible vitamin C or the relatively non-toxic tris (2-carboxyethyl) phosphine. Comparing to a control carrier, the clickable carrier can increase some drug concentrations in an ex vivo stomach tissue, and improve the Helicobacter pylori treatment in infected C57BL/6 mice.
Authors:
Amornset Tachaprutinun; Porntip Pan-In; Pawatsanai Samutprasert; Wijit Banlunara; Nuntaree Chaichanawongsaroj; Supason Pattanaargson Wanichwecharungruang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-9
Journal Detail:
Title:  Biomacromolecules     Volume:  -     ISSN:  1526-4602     ISO Abbreviation:  Biomacromolecules     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-10     Completed Date:  -     Revised Date:  2014-10-11    
Medline Journal Info:
Nlm Unique ID:  100892849     Medline TA:  Biomacromolecules     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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