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Tumor Vasculature is Regulated by PHD2-mediated Angiogenesis and Bone Marrow-derived Cell Recruitment

Overview
Journal Cancer Cell
Publisher Cell Press
Specialty Oncology
Date 2009 May 30
PMID 19477431
Citations 105
Authors
Affiliations
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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-kappaB-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.

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