title: Macrophages and angiogenesis: a role for Wnt signaling.
abstract: Macrophages regulate many developmental and pathological processes in both embryonic and adult tissues, and recent studies have shown a significant role in angiogenesis. Similarly, Wnt signaling is fundamental to tissue morphogenesis and also has a role in vascular development. In this review, we summarize recent advances in the field of macrophage-regulated angiogenesis, with a focus on the role of macrophage-derived Wnt ligands. We review data that provide both direct and indirect evidence for macrophage-derived Wnt regulation of physiologic and pathologic angiogenesis. Finally, we propose that Wnt signaling plays a central role in differentiation of tumor associated and wound infiltrating macrophages to a proangiogenic phenotype.
authors.affiliation: The Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, 92697, USA. cchughes@uci.edu.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Newman
authors.forename: Christopher C W
authors.initials: CC
authors.lastname: Hughes