Adverse effects of varenicline on the neurovascular unit
Project/Area Number |
25460236
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Medical pharmacy
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Research Institution | Fukuoka University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
DOHGU Shinya 福岡大学, 薬学部, 准教授 (60399186)
TAKATA Fuyuko 福岡大学, 薬学部, 助教 (70412575)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | バレニクリン / 血液脳関門 / 中枢性有害作用 / ニコチン性アセチルコリン受容体 / タイトジャンクション / 脳ペリサイト |
Outline of Final Research Achievements |
Smoking cessation therapy with varenicline is associated with the increased risk of suicide or attempted suicide and depression, although varenicline exerts antidepressant-like effects as a partial agonist at α4β2 and full agonist at α7 nicotinic acetylcholine receptor (nAChR). These neuropsychiatric events may be attributed to the dysfunction of the neurovascular unit with hyperpermeability of the blood-brain barrier (BBB). The aim of this study is to determine nAChR subtype as a target for varenicline-indcued BBB hyperpermeability. We found that (1) brain endothelial barrier was impaired by a long term exposure of the α7 nAChR agonist, (2) brain pericytes were the highest responsive cell type to the α7 nAChR stimulation in releasing the matrix metalloproteinase-9, and (3) brain pericytes enhanced the α7 nAChR agonist-induced brain endothelial hyperpermeability. These findings suggest that varenicline would induce BBB dysfunction by stimulating α7 nAChR.
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Report
(4 results)
Research Products
(30 results)
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[Presentation] IL-1βおよびTNF-αによる血液脳関門機能障害における細胞内情報伝達機構2015
Author(s)
古瀬由奈, 道具伸也, 高田芙友子, 松本純一, 木村郁哉, 吉田 愛, 有留尚孝, 岩尾悠可, 納富 夕, 山内淳史, 片岡泰文
Organizer
第68回日本薬理学会西南部会
Place of Presentation
下関
Year and Date
2015-11-21
Related Report
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