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Updated: Mar 15, 2026

Investigation of Macrophage Polarization Using Bone Marrow Derived Macrophages
Published on: June 23, 2013
Delta-Like Ligand 4-Notch Signaling in Macrophage Activation
Toshiaki Nakano1, Daiju Fukuda1, Jun-Ichiro Koga1
1From The Center for Excellence in Vascular Biology (T.N., D.F., J.K., M.A.), The Center for Interdisciplinary Cardiovascular Sciences (M.A.), Cardiovascular Division (T.N., D.F., J.K., M.A.), and Channing Division of Network Medicine (M.A.), Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Abstract:
The Notch signaling pathway regulates the development of various cell types and organs, and also contributes to disease mechanisms in adults. Accumulating evidence suggests its role in cardiovascular and metabolic diseases. Notch signaling components also control the phenotype of immune cells. Delta-like ligand 4 (Dll4) of the Notch pathway promotes proinflammatory activation of macrophages in vitro and in vivo. Dll4 blockade attenuates chronic atherosclerosis, vein graft disease, vascular calcification, insulin resistance, and fatty liver in mice. The Dll4-Notch axis may, thus, participate in the shared mechanisms for cardiometabolic disorders, serving as a potential therapeutic target for ameliorating these global health problems.
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