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Tumor Vasculature Is Regulated by PHD2-Mediated Angiogenesis and Bone Marrow-Derived Cell Recruitment

Denise A. Chan; Tiara L.A. Kawahara; Patrick D. Sutphin; Howard Y. Chang; Jen-Tsan Chi; Amato J. Giaccia

(Profiled Author: Patrick D Sutphin)

Cancer Cell. 2009;15(6):527-538.

Abstract

Sustained angiogenesis, through either local sprouting (angiogenesis) or the recruitment of bone marrow-derived cells (BMDCs) (vasculogenesis), is essential to the development of a tumor. How BMDCs are recruited to the tumor and their contribution to the tumor vasculature is poorly understood. Here, we demonstrate that both IL-8 and angiogenin contribute to the complementary pathways of angiogenesis and BMDC mobilization to increase tumor growth. These two factors are regulated by PHD2 in a HIF-independent but NF-κB-dependent manner. PHD2 levels are decreased in human cancers, compared with corresponding normal tissue, and correlate with an increase in mature blood vessels. Thus, PHD2 plays a critical role in regulating tumor angiogenesis. © 2009 Elsevier Inc. All rights reserved.


PMID: 19477431     PMCID: PMC2846696    

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