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Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
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A novel melphalan polymeric prodrug: preparation and property study
Dan Li1, Bo Lu2, Zhijun Huang2
1Department of Pharmaceutical Engineering, School of Chemical Engineering, Wuhan University of Technology, Wuhan 430070, PR China.
Carbohydrate Polymers
|July 20, 2014
Summary
Researchers developed novel O,N-carboxymethyl chitosan-peptide-melphalan conjugates to improve anticancer drug delivery. These polymeric prodrugs enhance melphalan
Area of Science:
- Biomaterials Science
- Drug Delivery Systems
- Cancer Therapeutics
Background:
- Melphalan (Me) is an anticancer drug for hematologic malignancies.
- Its clinical use is limited by poor water solubility, rapid elimination, and lack of target specificity.
Purpose of the Study:
- To synthesize and characterize O,N-carboxymethyl chitosan-peptide-melphalan conjugates to overcome melphalan's limitations.
- To evaluate the impact of polymer molecular weight and peptide spacer on conjugate properties and drug release.
Main Methods:
- Synthesis and characterization of O,N-carboxymethyl chitosan-peptide-melphalan conjugates.
- In vitro drug release studies.
- Cell cytotoxicity assessment using MTT assay.
Main Results:
- Polymeric prodrugs exhibited satisfactory water solubility.
- Molecular weight of O,N-carboxymethyl chitosan and peptide spacer influenced drug content, diameter, and release.
- Conjugates with glycylglycine spacer showed improved cathepsin X-sensitivity, lower toxicity, and enhanced drug release.
Conclusions:
- O,N-carboxymethyl chitosan-peptide-melphalan conjugates represent a promising strategy for improving melphalan delivery.
- This polymeric conjugation approach enhances solubility, controls release, and reduces toxicity for potential anticancer applications.
