Cited by 105Angiogenesis and VEGF in CancerAcute Ischemic Stroke ManagementBarrier Structure and Function Studies

Niaspan increases angiogenesis and improves functional recovery after stroke

Chen, Jieli, Cui, Xu, Zacharek, Alex, Jiang, Hao, Roberts, Cynthia, Zhang, Chunling, Lu, Mei, Kapke, Alissa +2 more·2007·Annals of Neurology

Abstract

Objective: High‐density lipoprotein (HDL) is implicated in the modulation of angiogenesis. In this study, we investigated whether the Niacin‐mediated increase of HDL regulates angiogenesis and thereby improves functional outcome after stroke. Methods: Adult male rats were subjected to middle cerebral artery occlusion and were treated with or without different doses (40 and 80mg/kg) of Niaspan, starting 24 hours after middle cerebral artery occlusion and daily for 14 days. Neurological functional tests were performed, and serum HDL level was measured. Angiogenesis and angiogenic factor expression were measured by immunohistochemistry, corneal neovascularization and capillary tube formation assay, and Western blot, respectively. Results: Niaspan significantly increased HDL level, promoted angiogenesis in the ischemic brain, and improved functional outcome after stroke. Niaspan also significantly increased corneal neovascularization compared with nontreatment control. Mechanisms underlying the Niaspan‐induced vascular remodeling were investigated. Niaspan increased the expression of vascular endothelial growth factor and angiopoietin‐1 (Ang1), and phosphorylation of Akt, endothelial nitric oxide synthase (NOS), and Tie2 in the ischemic brain. Niacin upregulated Ang1 expression in cultured brain endothelial cells and increased vascular endothelial growth factor, Ang1, and endothelial NOS expression in cultured astrocytes, and dose‐dependently increased capillary tube formation compared with nontreatment control. Inhibition of NOS partially decreased Niacin‐induced capillary tube formation. Inhibition of phosphoinositide 3‐kinase or knockdown of Tie2 substantially and significantly decreased Niacin‐induced capillary tube formation. Interpretation: Niacin increases HDL and promotes angiogenesis, which may contribute to improvement of functional outcome after stroke. The Ang1/Tie2, phosphoinositide 3‐kinase/Akt, and endothelial NOS pathways appear to mediate Niacin‐induced angiogenesis. Ann Neurol 2007

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Crossref · 10.1002/ana.21160

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  • In rats with cerebral ischaemia, vitamin B3 administration, which raises HDL and lowers serum cholesterol, increased angiogenesis, VEGF and angiopoietin 1 expression, and phosphorylation of eNOS and Tie2, improving neurological recovery.

    “In rats with cerebral ischaemia, vitamin B3 administration, which elevates high-density lipoprotein and thereby reduces serum cholesterol, increased angiogenesis, the expression of VEGF and angiopoietin 1, and enhanced the phosphorylation (ie, activation) of eNOS and the angiopoietin-1 receptor Tie2, thus improving neurological recovery.85”
  • In cerebral endothelial cell culture, eNOS inhibition or Tie2 knockdown reduced the effects of vitamin B3 on capillary tube formation, showing a role for eNOS and angiopoietin 1 in the beneficial effects of HDL elevation.

    “In cerebral endothelial cell culture, the effects of vitamin B3 on capillary tube formation were reduced after eNOS inhibition or Tie2 knockdown,85 showing a role for eNOS and angiopoietin 1 in the beneficial effects of the high-density lipoprotein elevation.”

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Authors
Chen, J., Cui, X., Zacharek, A., Jiang, H., Roberts, C., Zhang, C., Lu, M., Kapke, A., Feldkamp, C. S., & Chopp, M.
Affiliations
  • Henry Ford Health (US)
  • Henry Ford Hospital (US)
Corresponding author
Chopp, Michael
Venue
Annals of Neurology
Publisher
Wiley
Published
2007-06-07
Volume
62
Issue
1
Pages
49-58
ISSN
  • 0364-5134 (ISSN-L)
  • 1531-8249
OpenAlex
W2150253311
Cited by
105
References
49
Citations by year
2026: 3 · 2024: 1 · 2023: 2 · 2022: 5 · 2021: 4 · 2020: 1 · 2019: 7 · 2018: 1 · 2017: 4 · 2016: 9 · 2015: 7 · 2014: 14 · 2013: 8 · 2012: 10
FWCI
2.92
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS047682, P01NS23393, P01NS023393)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
Niaspan, nicotinic acid, high-density lipoprotein, angiogenesis, stroke, middle cerebral artery occlusion, functional recovery, angiopoietin-1, Tie2, vascular endothelial growth factor, endothelial nitric oxide synthase, phosphatidylinositol 3-kinase/Akt signaling, capillary tube formation, corneal neovascularization, ischemic brain, astrocytes, brain endothelial cells, vascular remodeling
MeSH terms
Animals, Bromodeoxyuridine, Cells, Cultured, Cholesterol, Disease Models, Animal, Dose-Response Relationship, Drug, Gene Expression Regulation, Cholesterol, HDL, Male, Niacin, Vitamin B Complex, Endothelial Growth Factors, Drug Delivery Systems, Rats, Wistar, Neovascularization, Physiologic, Recovery of Function, Stroke, Angiopoietin-1, Oncogene Protein v-akt, Rats, Nitric Oxide Synthase Type III

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