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Vascular targeting--a new approach to the therapy of solid tumors
1Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas 75235-8576.
Abstract:
An attractive approach to the therapy of solid tumors is to attack the endothelial cells of the tumor vascular bed rather than the tumor cells themselves, which circumvents the problem of poor penetration of tumor masses by monoclonal antibodies and other macromolecules. In this review, we will discuss the drawbacks of targeting solid tumors and the advantages of the 'vascular targeting' approach, describe the validation of the concept in a mouse model and summarize the properties of tumor endothelial cell markers, which are candidates for vascular targeting in humans.
Insights
Targeting tumor blood vessels offers advantages over directly attacking cancer cells, potentially improving drug delivery and treatment efficacy for solid tumors. This review explores vascular targeting strategies and relevant human cell markers.
Area of Science:
- Oncology
- Vascular Biology
- Drug Development
Background:
- Directly targeting solid tumor cells faces challenges with drug penetration.
- Tumor vasculature presents an alternative therapeutic target.
- Vascular targeting circumvents issues associated with macromolecule delivery into tumor masses.
Purpose of the Study:
- To review the drawbacks of traditional solid tumor targeting.
- To highlight the advantages of the vascular targeting approach.
- To summarize tumor endothelial cell markers for human vascular targeting.
Main Methods:
- Review of existing literature on tumor therapy and vascular targeting.
- Discussion of preclinical validation in mouse models.
- Analysis of properties of potential human tumor endothelial cell markers.
Main Results:
- Vascular targeting offers a promising alternative to direct tumor cell attack.
- Preclinical models validate the concept of targeting tumor vasculature.
- Identification and characterization of endothelial cell markers are crucial for clinical translation.
Conclusions:
- Vascular targeting represents a viable strategy for solid tumor treatment.
- Further research into tumor endothelial cell markers will facilitate clinical application.
- This approach may overcome limitations of conventional cancer therapies.