Ligand-targeted liposomes for cancer treatment
Puja Sapra1, Pradeep Tyagi, Theresa M Allen
1Immunomedics, Inc., Morris Plains, NJ 07940, USA.
Abstract:
Selective targeting of ligand-targeted liposomes containing anticancer drugs or therapeutic genes to cell surface receptors expressed on cancer cells is a recognized strategy for improving the therapeutic effectiveness of conventional chemotherapeutics or gene therapeutics. Some recent advances in the field of ligand-targeted liposomes for the treatment of cancer are summarized including: selection criteria for the receptors to be targeted, choice of targeting ligands and choice of encapsulated therapeutics. Targeting of liposomes to solid tumors, versus angiogenic endothelial cells versus vascular targets is discussed. Ligand-targeted liposomes have shown considerable promise in preclinical xenograft models and are poised for clinical development.
Insights
Ligand-targeted liposomes offer a promising strategy to deliver anticancer drugs and gene therapies directly to cancer cells, enhancing treatment effectiveness. These targeted liposomes show significant potential in preclinical models and are advancing toward clinical trials.
Area of Science:
- Oncology
- Nanotechnology
- Pharmacology
Background:
- Conventional cancer therapies often lack specificity, leading to systemic toxicity.
- Ligand-targeted liposomes represent an advanced drug delivery system designed to overcome these limitations.
- Targeting specific cell surface receptors on cancer cells enhances therapeutic precision.
Purpose of the Study:
- To summarize recent advancements in ligand-targeted liposomes for cancer treatment.
- To discuss key considerations in designing effective targeted liposomes.
- To review the potential of these systems in preclinical and clinical settings.
Main Methods:
- Review of recent scientific literature on ligand-targeted liposomes in cancer therapy.
- Analysis of receptor selection criteria for targeted delivery.
- Evaluation of targeting ligand choices and encapsulated therapeutic agents.
- Discussion of targeting strategies for solid tumors, angiogenic cells, and vascular targets.
Main Results:
- Ligand-targeted liposomes demonstrate selective delivery to cancer cells expressing specific receptors.
- The choice of targeting ligand and encapsulated therapeutic agent influences efficacy.
- Targeting strategies can be adapted for different cancer types and stages, including solid tumors and angiogenic vasculature.
- Preclinical studies in xenograft models show significant promise for ligand-targeted liposomes.
Conclusions:
- Ligand-targeted liposomes are a promising platform for enhancing cancer therapy efficacy and reducing side effects.
- Further research and clinical development are warranted to translate preclinical success into patient benefits.
- This approach holds potential for improving outcomes in various cancer treatments, including chemotherapy and gene therapy.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Modified-Release Drug Delivery Systems: Site-Targeted
Site-Targeted Drug Delivery Systems: Polymeric Carriers


