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Published on: December 27, 2013
Stimulus-Responsive Degradable Polylactide-Based Block Copolymer Nanoassemblies for Controlled/Enhanced Drug
Kamaljeet K Bawa1, Jung Kwon Oh1
1Department of Chemistry and Biochemistry, Concordia University , Montreal, Quebec, Canada H4B 1R6.
Stimulus-responsive degradation (SRD) enhances drug release from polylactide (PLA)-based nanoassemblies. This strategy improves drug delivery for cancer therapy by enabling controlled release from advanced nanocarriers.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery
Background:
- Polylactide (PLA) is a biocompatible, FDA-approved material widely used in biomedical applications.
- Conventional PLA-based amphiphilic block copolymer (ABP) nanoassemblies show limitations in drug release due to slow biodegradation.
- Stimulus-responsive degradation (SRD) offers a solution to overcome these limitations.
Purpose of the Study:
- To review recent strategies for developing PLA-based ABPs with SRD capabilities.
- To summarize the design, synthesis, and evaluation of SRD nanoassemblies for enhanced drug release.
- To focus on intracellular drug delivery nanocarriers for cancer therapy.
Main Methods:
- Development of PLA-based amphiphilic block copolymers (ABPs).
- Self-assembly of ABPs into nanostructures exhibiting stimulus-responsive degradation.
- Evaluation of nanoassemblies as intracellular drug delivery systems.
Main Results:
- SRD-PLA-based nanoassemblies demonstrate enhanced and controlled drug release.
- These nanocarriers show potential for improved cancer therapy through targeted intracellular drug delivery.
- Recent strategies have advanced the development of effective SRD PLA-based nanoassemblies.
Conclusions:
- SRD is a promising platform for developing advanced PLA-based nanoassemblies for drug delivery.
- These nanoassemblies offer improved control over drug release kinetics.
- Further development is crucial for effective tumor-targeting intracellular drug delivery in cancer treatment.
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