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Updated: Mar 29, 2026

Isolation and Culture Expansion of Tumor-specific Endothelial Cells
Published on: October 14, 2015
Heterogeneity of tumor endothelial cells and drug delivery
Kyoko Hida1, Nako Maishi1, Yu Sakurai2
1Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, N15, W7, Kita-ku, Sapporo 060-0815, Japan.
Abstract:
To date anti-angiogenic therapy has been used for cancer therapy widely, yielding promising results. However, it has been elucidated that current anti-angiogenic drug has several issues to be solved, such as side-effects and drug resistance. It has been reported that tumor endothelial cells (TECs) differ from normal counterparts. In addition, it was shown that the TECs are heterogeneous according to the malignancy status of tumor. The development of novel strategy for targeting tumor vasculature is required. Recently, we have developed an active targeting system, which targets TECs specifically. In this review, we will discuss how TECs in tumor vasculature are heterogeneous and offer new perspectives on a drug delivery system, which can target heterogeneous tumor blood vessels from a viewpoint of personalized medicine.
Insights
Current anti-angiogenic cancer therapy faces challenges like side-effects and resistance. This review explores targeting heterogeneous tumor endothelial cells (TECs) with novel drug delivery systems for personalized medicine.
Area of Science:
- Oncology
- Vascular Biology
- Drug Delivery Systems
Background:
- Anti-angiogenic therapy is widely used in cancer treatment but faces challenges including side-effects and drug resistance.
- Tumor endothelial cells (TECs) exhibit distinct characteristics compared to normal endothelial cells.
- TECs display heterogeneity that correlates with tumor malignancy status.
Purpose of the Study:
- To review the heterogeneity of TECs within tumor vasculature.
- To discuss novel strategies for targeting these heterogeneous tumor blood vessels.
- To offer new perspectives on drug delivery systems for personalized cancer medicine.
Main Methods:
- Review of existing literature on anti-angiogenic therapy and tumor vasculature.
- Analysis of studies detailing TEC heterogeneity.
- Discussion of a newly developed active targeting system for TECs.
Main Results:
- Tumor endothelial cells are heterogeneous, varying with tumor malignancy.
- Current anti-angiogenic drugs have limitations, necessitating new approaches.
- An active targeting system specifically targeting TECs has been developed.
Conclusions:
- Addressing TEC heterogeneity is crucial for improving cancer therapy.
- Novel drug delivery systems targeting heterogeneous tumor vasculature offer promise.
- Personalized medicine approaches are needed to overcome current therapeutic challenges.
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