International Journal of Clinical Oncology

, Volume 21, Issue 2, pp 206–212

Tumor angiogenesis—characteristics of tumor endothelial cells

  • Kyoko Hida
  • Nako Maishi
  • Chisaho Torii
  • Yasuhiro Hida
Invited Review Article

DOI: 10.1007/s10147-016-0957-1

Cite this article as:
Hida, K., Maishi, N., Torii, C. et al. Int J Clin Oncol (2016) 21: 206. doi:10.1007/s10147-016-0957-1

Abstract

Tumor blood vessels provide nutrition and oxygen to the tumor, resulting in tumor progression. They also act as gatekeepers, inducing tumor metastasis. Thus, targeting tumor blood vessels is an important strategy in cancer therapy. Tumor endothelial cells (TECs), which line the inner layer of blood vessels of the tumor stromal tissue, are the main targets of anti-angiogenic therapy. Because new tumor blood vessels generally sprout from pre-existing vasculature, they have been considered to be the same as normal blood vessels. However, tumor blood vessels demonstrate a markedly abnormal phenotype that includes several important morphological changes. The degree of angiogenesis is determined by the balance between the angiogenic stimulators and inhibitors released by the tumor and host cells. Recent studies have revealed that TECs also exhibit altered characteristics which depend on the tumor microenvironment. Here, we review recent studies on TEC abnormalities and heterogeneity with respect to tumor progression and consider their therapeutic implications.

Keywords

Tumor angiogenesis Anti-angiogenic therapy Tumor endothelial cell Blood vessel Metastasis 

Copyright information

© Japan Society of Clinical Oncology 2016

Authors and Affiliations

  • Kyoko Hida
    • 1
  • Nako Maishi
    • 1
  • Chisaho Torii
    • 1
    • 2
  • Yasuhiro Hida
    • 3
  1. 1.Vascular Biology, Frontier Research Unit, Institute for Genetic MedicineHokkaido UniversitySapporoJapan
  2. 2.Department of Oral and Maxillofacial SurgeryHokkaido University Graduate School of Dental MedicineSapporoJapan
  3. 3.Department of Cardiovascular and Thoracic SurgeryHokkaido University Graduate School of MedicineSapporoJapan

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