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Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
Published on: June 13, 2014
5-Boronopicolinic acid-functionalized polymeric nanoparticles for targeting drug delivery and enhanced tumor therapy
Xuefang Hao1, Weiwei Gai1, Lina Wang1
1Nano Innovation Institute, Inner Mongolia Key Laboratory of Carbon Nanomaterials, College of Chemistry and Materials Science, Inner Mongolia University for Nationalities, Tongliao 028000, China.
Abstract:
Strong specificity for cancer cells is still the main challenge to deliver drugs for the therapy of cancer. Herein, we developed a convenient strategy to prepare a series of 5-boronopicolinic acid (BA) modified tumor-targeting drug delivery systems (T-DDSs) with strong tumor targeting function. An anti-tumor drug of camptothecin (CPT) was encapsulated into poly(lactide-co-glycolide)-g-polyethylenimine (PLGA-PEI) to form drug-loaded nanoparticles (NP/CPT). Then, the surface of NP/CPT was coated by BA with different polymer and BA molar ratios of 1:1, 1:5, 1:10 and 1:20 via electrostatic interaction to obtain T-DDSs with enhanced biocompatibility and specificity for tumor cells. The introduced BA can endow drug-loaded NPs with high targeting ability to tumor cells because of the overexpression of sialic acids (SA) in tumor cells, which possessed strong interaction with BA. Those T-DDSs exhibited good biocompatibility according to the results of MTT assay, hemolysis test and cellular uptake. Moreover, they were capable of decreasing the viability of breast cancer cell line 4T1 and MCF-7 cells with no obvious cytotoxicity for endothelial cells. Especially, T-DDS with 1:20 molar ratio displayed much higher cellular uptake than other groups, and also exhibited highly efficient in vivo anti-tumor effect. The significantly high targeting function and biocompatibility of T-DDSs improved their drug delivery efficiency and achieved good anti-tumor effect. The BA decorated T-DDSs provides a simple and robust strategy for the design and preparation of DDSs with good biocompatibility and strong tumor-specificity to promote drug delivery efficiency.
Insights
Researchers developed novel tumor-targeting drug delivery systems (T-DDSs) using 5-boronopicolinic acid (BA) to enhance cancer therapy. These BA-modified nanoparticles show improved specificity and efficacy against cancer cells, offering a promising strategy for drug delivery.
Area of Science:
- Biomedical Engineering
- Materials Science
- Oncology
Background:
- Achieving high specificity for cancer cells remains a significant challenge in developing effective cancer therapies.
- Current drug delivery systems often lack targeted action, leading to off-target effects and reduced therapeutic efficacy.
Purpose of the Study:
- To develop novel 5-boronopicolinic acid (BA)-modified tumor-targeting drug delivery systems (T-DDSs) for enhanced cancer therapy.
- To investigate the tumor-targeting capability and anti-tumor efficacy of these BA-decorated T-DDSs.
Main Methods:
- Synthesized camptothecin (CPT)-loaded poly(lactide-co-glycolide)-g-polyethylenimine (PLGA-PEI) nanoparticles (NP/CPT).
- Coated NP/CPT with 5-boronopicolinic acid (BA) at various molar ratios (1:1, 1:5, 1:10, 1:20) via electrostatic interaction.
- Evaluated biocompatibility (MTT assay, hemolysis test) and cellular uptake in cancer cell lines (4T1, MCF-7) and endothelial cells.
Main Results:
- BA modification endowed nanoparticles with strong targeting ability towards tumor cells, attributed to interactions with overexpressed sialic acids (SA).
- T-DDSs demonstrated good biocompatibility and reduced viability of breast cancer cells (4T1, MCF-7) without significant cytotoxicity to endothelial cells.
- The T-DDS with a 1:20 molar ratio exhibited superior cellular uptake and highly efficient in vivo anti-tumor effects.
Conclusions:
- BA-decorated T-DDSs offer a simple and robust strategy for designing drug delivery systems with excellent biocompatibility and tumor specificity.
- These systems significantly enhance drug delivery efficiency and achieve effective anti-tumor outcomes, addressing a key challenge in cancer therapy.
