TY - JOUR A1 - Lautz, Thomas A1 - Lasch, Manuel A1 - Borgolte, Julia A1 - Troidl, Kerstin A1 - Pagel, Judith-Irina Carola A1 - Caballero-Martinez, Amelia A1 - Kleinert, Eike Christian A1 - Walzog, Barbara A1 - Deindl, Elisabeth T1 - Midkine controls arteriogenesis by regulating the bioavailability of vascular endothelial growth factor A and the expression of nitric oxide synthase 1 and 3 T2 - EBioMedicine N2 - Midkine is a pleiotropic factor, which is involved in angiogenesis. However, its mode of action in this process is still ill defined. The function of midkine in arteriogenesis, the growth of natural bypasses from pre-existing collateral arteries, compensating for the loss of an occluded artery has never been investigated. Arteriogenesis is an inflammatory process, which relies on the proliferation of endothelial cells and smooth muscle cells. We show that midkine deficiency strikingly interferes with the proliferation of endothelial cells in arteriogenesis, thereby interfering with the process of collateral artery growth. We identified midkine to be responsible for increased plasma levels of vascular endothelial growth factor A (VEGFA), necessary and sufficient to promote endothelial cell proliferation in growing collaterals. Mechanistically, we demonstrate that leukocyte domiciled midkine mediates increased plasma levels of VEGFA relevant for upregulation of endothelial nitric oxide synthase 1 and 3, necessary for proper endothelial cell proliferation, and that non-leukocyte domiciled midkine additionally improves vasodilation. The data provided on the role of midkine in endothelial proliferation are likely to be relevant for both, the process of arteriogenesis and angiogenesis. Moreover, our data might help to estimate the therapeutic effect of clinically applied VEGFA in patients with vascular occlusive diseases. KW - Midkine KW - Arteriogenesis KW - Vascular endothelial growth factor A KW - Vascular endothelial growth factor receptor 2 KW - Endothelial nitric oxide synthase KW - Neuronal nitric oxide synthase Y1 - 2017 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/45608 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-456087 SN - 2352-3964 N1 - © 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). VL - 27 SP - 237 EP - 246 PB - Elsevier CY - Amsterdam [u. a.] ER -