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Related Experiment Video

Updated: Jun 12, 2026

Synthesis and Characterization of Placental Chondroitin Sulfate A (plCSA)-Targeting Lipid-Polymer Nanoparticles
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Chondroitin sulfate functionalized liposomes for solid tumor targeting.

Rashmi Bagari1, Divya Bansal, Arvind Gulbake

  • 1Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr. H. S. Gour Vishwavidyalaya, Sagar (Madhya Pradesh), India.

Journal of Drug Targeting
|June 16, 2010
PubMed
Summary

Chondroitin sulfate-coupled liposomes (CS-LP) show enhanced solid tumor targeting. This targeted delivery system improved drug uptake in cancer cells and tumors, offering a promising approach for cancer therapy.

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Drug Delivery Systems

Background:

  • Liposomes are widely used drug delivery vehicles.
  • Targeting solid tumors remains a challenge in cancer therapy.
  • Chondroitin sulfate offers potential for targeted drug delivery.

Purpose of the Study:

  • To develop and evaluate chondroitin sulfate-coupled liposomes (CS-LP) for enhanced solid tumor targeting.
  • To characterize the physicochemical properties of CS-LP.
  • To assess the in vitro and in vivo targeting efficiency of CS-LP.

Main Methods:

  • Liposomes were prepared using the cast film method and coupled with chondroitin sulfate.
  • Characterization included infrared spectroscopy, vesicle size analysis, zeta potential, entrapment efficiency, and in vitro drug release.
  • Cellular uptake studies were performed using MDA-MB-231 breast cancer cell lines and fluorescence microscopy.
  • In vivo tumor targeting was assessed by measuring drug recovery from tumors.

Main Results:

  • Chondroitin sulfate coupling increased vesicle size (256 nm to 310 nm).
  • In vitro drug release was slightly lower for CS-LP (38.3%) compared to uncoupled liposomes (44.2%) over 24 hours.
  • CS-LP demonstrated significantly higher uptake by MDA-MB-231 cells.
  • Administration of CS-LP resulted in higher drug recovery from tumors compared to uncoupled liposomes or free drug.

Conclusions:

  • Chondroitin sulfate coupling enhances liposome recognition and uptake by cancer cells.
  • CS-LP effectively targets solid tumors, improving drug delivery.
  • This targeted liposomal system holds promise as a vector for solid tumor treatment.