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Open AccessReview

The Janus Face of VEGF in Stroke

Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, 0371 Oslo, Norway
Institute for Behavioral Sciences, Faculty of Health Sciences, OsloMet—Oslo Metropolitan University, 0166 Oslo, Norway
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(5), 1362;
Received: 28 March 2018 / Revised: 27 April 2018 / Accepted: 1 May 2018 / Published: 4 May 2018
(This article belongs to the Special Issue Vascular Endothelial Growth Factor)
The family of vascular endothelial growth factors (VEGFs) are known for their regulation of vascularization. In the brain, VEGFs are important regulators of angiogenesis, neuroprotection and neurogenesis. Dysregulation of VEGFs is involved in a large number of neurodegenerative diseases and acute neurological insults, including stroke. Stroke is the main cause of acquired disabilities, and normally results from an occlusion of a cerebral artery or a hemorrhage, both leading to focal ischemia. Neurons in the ischemic core rapidly undergo necrosis. Cells in the penumbra are exposed to ischemia, but may be rescued if adequate perfusion is restored in time. The neuroprotective and angiogenic effects of VEGFs would theoretically make VEGFs ideal candidates for drug therapy in stroke. However, contradictory to what one might expect, endogenously upregulated levels of VEGF as well as the administration of exogenous VEGF is detrimental in acute stroke. This is probably due to VEGF-mediated blood–brain-barrier breakdown and vascular leakage, leading to edema and increased intracranial pressure as well as neuroinflammation. The key to understanding this Janus face of VEGF function in stroke may lie in the timing; the harmful effect of VEGFs on vessel integrity is transient, as both VEGF preconditioning and increased VEGF after the acute phase has a neuroprotective effect. The present review discusses the multifaceted action of VEGFs in stroke prevention and therapy. View Full-Text
Keywords: growth factor; VEGF; stroke; ischemia; exercise growth factor; VEGF; stroke; ischemia; exercise
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MDPI and ACS Style

Geiseler, S.J.; Morland, C. The Janus Face of VEGF in Stroke. Int. J. Mol. Sci. 2018, 19, 1362.

AMA Style

Geiseler SJ, Morland C. The Janus Face of VEGF in Stroke. International Journal of Molecular Sciences. 2018; 19(5):1362.

Chicago/Turabian Style

Geiseler, Samuel J.; Morland, Cecilie. 2018. "The Janus Face of VEGF in Stroke" Int. J. Mol. Sci. 19, no. 5: 1362.

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