Development of delivery methods for carbohydrate-based drugs: controlled release of biologically-active short chain fatty acid-hexosamine analogs.

Abstract

Carbohydrates are attractive candidates for drug development because sugars are involved in many, if not most, complex human diseases including cancer, immune dysfunction, congenital disorders, and infectious diseases. Unfortunately, potential therapeutic benefits of sugar-based drugs are offset by poor pharmacologic properties that include rapid serum clearance, poor cellular uptake, and relatively high concentrations required for efficacy. To address these issues, pilot studies are reported here where 'Bu(4)ManNAc', a short chain fatty acid-monosaccharide hybrid molecule with anti-cancer activities, was encapsulated in polyethylene glycol-sebacic acid (PEG-SA) polymers. Sustained release of biologically active compound was achieved for over a week from drug-laden polymer formulated into microparticles thus offering a dramatic improvement over the twice daily administration currently used for in vivo studies. In a second strategy, a tributanoylated ManNAc analog (3,4,6-O-Bu(3)ManNAc) with anti-cancer activities was covalently linked to PEG-SA and formulated into nanoparticles suitable for drug delivery; once again release of biologically active compound was demonstrated.

• Authors: Udayanath Aich, M Adam Meledeo, Srinivasa-Gopalan Sampathkumar, Jie Fu, Mark B Jones, Christopher A Weier, Sung Yun Chung, Benjamin C Tang, Ming Yang, Justin Hanes, Kevin J Yarema
• Journal: Glycoconjugate journal (Glycoconj J) Vol. 27 Issue 4 Pg. 445-59 (May 2010) ISSN: 1573-4986 [Electronic] United States
• PMID: 20458533 (Publication Type: Journal Article, Research Support, N.I.H., Extramural)

Chemical References

• Antineoplastic Agents
• Decanoic Acids
• Delayed-Action Preparations
• Dicarboxylic Acids
• Fatty Acids, Volatile
• Hexosamines
• Polyvinyls
• polyvinyl acetate
• Polyethylene Glycols
• sebacic acid
• N-acetylmannosamine

Topics

• Antineoplastic Agents (administration & dosage, chemical synthesis, pharmacology)
• Chemistry, Pharmaceutical
• Chromatography, High Pressure Liquid
• Decanoic Acids (chemistry)
• Delayed-Action Preparations
• Dicarboxylic Acids (chemistry)
• Drug Delivery Systems (methods)
• Fatty Acids, Volatile (chemistry)
• Hexosamines (administration & dosage, chemical synthesis, chemistry, pharmacology)
• Nanoparticles
• Polyethylene Glycols (chemistry)
• Polyvinyls (chemistry)