Cited by 1,296Barrier Structure and Function StudiesAngiogenesis and VEGF in CancerAcute Ischemic Stroke Management

VEGF enhances angiogenesis and promotes blood–brain barrier leakage in the ischemic brain

Open access
Zhang, Zheng Gang, Zhang, Li, Jiang, Quan, Zhang, Ruilan, Davies, Kenneth, Powers, Cecylia, Bruggen, Nicholas van, Chopp, Michael·2000·Journal of Clinical Investigation

Abstract

VEGF is a secreted mitogen associated with angiogenesis and is also a potent vascular permeability factor. The biological role of VEGF in the ischemic brain remains unknown. This study was undertaken to investigate whether VEGF enhances cerebral microvascular perfusion and increases blood-brain barrier (BBB) leakage in the ischemic brain. Using magnetic resonance imaging (MRI), three-dimensional laser-scanning confocal microscope, and functional neurological tests, we measured the effects of administrating recombinant human VEGF(165) (rhVEGF(165)) on angiogenesis, functional neurological outcome, and BBB leakage in a rat model of focal cerebral embolic ischemia. Late (48 hours) administration of rhVEGF(165) to the ischemic rats enhanced angiogenesis in the ischemic penumbra and significantly improved neurological recovery. However, early postischemic (1 hour) administration of rhVEGF(165) to ischemic rats significantly increased BBB leakage, hemorrhagic transformation, and ischemic lesions. Administration of rhVEGF(165) to ischemic rats did not change BBB leakage and cerebral plasma perfusion in the contralateral hemisphere. Our results indicate that VEGF can markedly enhance angiogenesis in the ischemic brain and reduce neurological deficits during stroke recovery and that inhibition of VEGF at the acute stage of stroke may reduce the BBB permeability and the risk of hemorrhagic transformation after focal cerebral ischemia.

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  • VEGF is responsible for multiple important physiological functions, particularly BBB permeability.

    “As a pleiotropic growth factor, VEGF is responsible for multiple important physiological functions, particularly BBB permeability [44, 50, 51].”

    From Chronic stress-induced depression requires the recruitment of peripheral Th17 cells into the brain (2022) · cites this paper as [50]

    The Discussion (page not provided) describes VEGF’s roles in angiogenesis and possible neuronal effects, and reports increased BBB leakage after early VEGF administration in ischemic rats. The claim is broader than the evidence: the study found no increased leakage in nonischemic areas or rats and does not establish BBB permeability as a general physiological function of VEGF. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Similar findings about the importance of timing for administration of a neurorestorative therapy for stroke have been reported for VEGF and modulators of matrix metalloproteinases.

    “Similar findings about the importance of timing for administration of a neurorestorative therapy for stroke have been reported for VEGF94 and modulators of matrix metallo proteinases.95”

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Research works printed but not linked: 1

  1. Paxinos, G., and Watson, C. 1986. The rat brain in sterotaxic coordinates. 2nd edi- tion. Academic Press Inc. New York, New York, USA. 29-50.

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Authors
Zhang, Z. G., Zhang, L., Jiang, Q., Zhang, R., Davies, K., Powers, C., Bruggen, N. V., & Chopp, M.
Affiliations
  • Henry Ford Health (US)
  • Henry Ford Hospital (US)
  • Genentech (US)
  • Oakland University (US)
Corresponding author
Chopp, Michael
Venue
Journal of Clinical Investigation
Published
2000-10-01
Volume
106
Issue
7
Pages
829-838
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2084498863
Cited by
1,296
References
75
Citations by year
2026: 32 · 2025: 49 · 2024: 53 · 2023: 52 · 2022: 64 · 2021: 73 · 2020: 58 · 2019: 42 · 2018: 59 · 2017: 59 · 2016: 61 · 2015: 49 · 2014: 70 · 2013: 70 · 2012: 64
FWCI
13.44
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01ns033627-08)
  • National Institute of Neurological Disorders and Stroke (P01NS23393, R01NS-33627, P01NS023393)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
Keywords
vascular endothelial growth factor, angiogenesis, blood-brain barrier disruption, cerebral ischemia, hemorrhagic transformation, ischemic penumbra, neurological recovery, VEGF inhibition, stroke
MeSH terms
Animals, Blood-Brain Barrier, Brain Ischemia, Image Processing, Computer-Assisted, Lymphokines, Magnetic Resonance Imaging, Male, Microcirculation, Neovascularization, Pathologic, Regional Blood Flow, Endothelial Growth Factors, Treatment Outcome, Rats, Wistar, Stroke, Vascular Endothelial Growth Factors, Vascular Endothelial Growth Factor A, Rats

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