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Tumor Endothelial Heterogeneity in Cancer Progression

Department of Vascular Biology and Molecular Pathology, Hokkaido University Graduate School of Dental Medicine, Sapporo 060-8586, Japan
Vascular Biology, Frontier Research Unit, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan
Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine, Sapporo 060-8636, Japan
Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine, Sapporo 060-8638, Japan
Author to whom correspondence should be addressed.
Received: 15 September 2019 / Revised: 1 October 2019 / Accepted: 2 October 2019 / Published: 9 October 2019
(This article belongs to the Special Issue Metastatic Progression and Tumour Heterogeneity)
Tumor blood vessels supply nutrients and oxygen to tumor cells for their growth and provide routes for them to enter circulation. Thus, angiogenesis, the formation of new blood vessels, is essential for tumor progression and metastasis. Tumor endothelial cells (TECs) that cover the inner surfaces of tumor blood vessels reportedly show phenotypes distinct from those of their normal counterparts. As examples, TECs show cytogenetic abnormalities, resistance to anticancer drugs, activated proliferation and migration, and specific gene expression patterns. TECs contain stem-like cell populations, which means that the origin of TECs is heterogeneous. In addition, since some abnormal phenotypes in TECs are induced by factors in the tumor microenvironment, such as hypoxia and tumor cell-derived factors, phenotypic diversity in TECs may be caused in part by intratumoral heterogeneity. Recent studies have identified that the interaction of tumor cells and TECs by juxtacrine and paracrine signaling contributes to tumor malignancy. Understanding TEC abnormality and heterogeneity is important for treatment of cancers. This review provides an overview of the diversity of TECs and discusses the interaction between TECs and tumor cells in the tumor microenvironment. View Full-Text
Keywords: tumor endothelial cell; metastasis; heterogeneity; angiocrine factor tumor endothelial cell; metastasis; heterogeneity; angiocrine factor
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MDPI and ACS Style

Maishi, N.; Annan, D.A.; Kikuchi, H.; Hida, Y.; Hida, K. Tumor Endothelial Heterogeneity in Cancer Progression. Cancers 2019, 11, 1511.

AMA Style

Maishi N, Annan DA, Kikuchi H, Hida Y, Hida K. Tumor Endothelial Heterogeneity in Cancer Progression. Cancers. 2019; 11(10):1511.

Chicago/Turabian Style

Maishi, Nako, Dorcas A. Annan, Hiroshi Kikuchi, Yasuhiro Hida, and Kyoko Hida. 2019. "Tumor Endothelial Heterogeneity in Cancer Progression" Cancers 11, no. 10: 1511.

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