Abstract
Inflammation may be one of the independent risk factors contributing to many neurological diseases. Moreover, there is an emerging body of data indicating that statins may have neuroprotective action. Recent studies suggest that CD40-CD40 ligand (CD40L) system is proven to be an important mediator of several auto-immune and chronic inflammation diseases. To address whether lovastatin produces neuroprotection as a potential novel anti-inflammatory pathway through the inhibition of CD40 expression, we examined the possible effects of lovastatin on expression of CD40, apoptosis, level of nitric oxide (NO) and nitric oxide synthase (NOS) activity induced by tumor necrosis factor α (TNF-α) in the cerebral vascular endothelial cells (CVECs) involved in cerebrovascular diseases. Preincubation with lovastatin (10-7, 10-6 and 10-5 mol/l) for 24 hours (h) protected CVECs from TNF-α-induced decrease of cellular viability. Further, lovastatin inhibited the TNF-α-induced increases of NO level, NOS activity, apoptotic cells and CD40 expression in a dosedependent manner, and anti-CD40 antibody also inhibited the cellular apoptosis induced by TNF-α. In conclusion, our data provide evidence to support a direct pro-inflammatory effect of CD40-CD40L signaling pathway in CVECs, and lovastatin possesses an anti-inflammatory effect independent of its lipid-lowering action involved in the cerebrovascular diseases.
Keywords: Lovastatin, TNF-α, CD40, apoptosis, NO, NOS, cerebral vascular endothelial cell
Current Neurovascular Research
Title: Lovastatin Reduces Apoptosis and Downregulates the CD40 Expression Induced by TNF-α in Cerebral Vascular Endothelial Cells
Volume: 3 Issue: 1
Author(s): Rong Lin, Juntian Liu, Ning Peng, Weijie Gan, Weirong Wang, Chunjie Han and Cunjing Ding
Affiliation:
Keywords: Lovastatin, TNF-α, CD40, apoptosis, NO, NOS, cerebral vascular endothelial cell
Abstract: Inflammation may be one of the independent risk factors contributing to many neurological diseases. Moreover, there is an emerging body of data indicating that statins may have neuroprotective action. Recent studies suggest that CD40-CD40 ligand (CD40L) system is proven to be an important mediator of several auto-immune and chronic inflammation diseases. To address whether lovastatin produces neuroprotection as a potential novel anti-inflammatory pathway through the inhibition of CD40 expression, we examined the possible effects of lovastatin on expression of CD40, apoptosis, level of nitric oxide (NO) and nitric oxide synthase (NOS) activity induced by tumor necrosis factor α (TNF-α) in the cerebral vascular endothelial cells (CVECs) involved in cerebrovascular diseases. Preincubation with lovastatin (10-7, 10-6 and 10-5 mol/l) for 24 hours (h) protected CVECs from TNF-α-induced decrease of cellular viability. Further, lovastatin inhibited the TNF-α-induced increases of NO level, NOS activity, apoptotic cells and CD40 expression in a dosedependent manner, and anti-CD40 antibody also inhibited the cellular apoptosis induced by TNF-α. In conclusion, our data provide evidence to support a direct pro-inflammatory effect of CD40-CD40L signaling pathway in CVECs, and lovastatin possesses an anti-inflammatory effect independent of its lipid-lowering action involved in the cerebrovascular diseases.
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Cite this article as:
Lin Rong, Liu Juntian, Peng Ning, Gan Weijie, Wang Weirong, Han Chunjie and Ding Cunjing, Lovastatin Reduces Apoptosis and Downregulates the CD40 Expression Induced by TNF-α in Cerebral Vascular Endothelial Cells, Current Neurovascular Research 2006; 3 (1) . https://dx.doi.org/10.2174/156720206775541796
DOI https://dx.doi.org/10.2174/156720206775541796 |
Print ISSN 1567-2026 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5739 |
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