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Pharmacokinetics of quinacrine efflux from mouse brain via the P-glycoprotein efflux transporter.

التفاصيل البيبلوغرافية
العنوان: Pharmacokinetics of quinacrine efflux from mouse brain via the P-glycoprotein efflux transporter.
المؤلفون: Misol Ahn, Sina Ghaemmaghami, Yong Huang, Puay-Wah Phuan, Barnaby C H May, Kurt Giles, Stephen J DeArmond, Stanley B Prusiner
المصدر: PLoS ONE, Vol 7, Iss 7, p e39112 (2012)
بيانات النشر: Public Library of Science (PLoS), 2012.
سنة النشر: 2012
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: The lipophilic cationic compound quinacrine has been used as an antimalarial drug for over 75 years but its pharmacokinetic profile is limited. Here, we report on the pharmacokinetic properties of quinacrine in mice. Following an oral dose of 40 mg/kg/day for 30 days, quinacrine concentration in the brain of wild-type mice was maintained at a concentration of ∼1 µM. As a substrate of the P-glycoprotein (P-gp) efflux transporter, quinacrine is actively exported from the brain, preventing its accumulation to levels that may show efficacy in some disease models. In the brains of P-gp-deficient Mdr1(0/0) mice, we found quinacrine reached concentrations of ∼80 µM without any signs of acute toxicity. Additionally, we examined the distribution and metabolism of quinacrine in the wild-type and Mdr1(0/0) brains. In wild-type mice, the co-administration of cyclosporin A, a known P-gp inhibitor, resulted in a 6-fold increase in the accumulation of quinacrine in the brain. Our findings argue that the inhibition of the P-gp efflux transporter should improve the poor pharmacokinetic properties of quinacrine in the CNS.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1932-6203
Relation: http://europepmc.org/articles/PMC3388068?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0039112
URL الوصول: https://doaj.org/article/b1378581b9864925bf5d24e3b527f0f3
رقم الأكسشن: edsdoj.b1378581b9864925bf5d24e3b527f0f3
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19326203
DOI:10.1371/journal.pone.0039112