期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 57, 期 7, 页码 3005-3010出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm401963n
关键词
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资金
- Science for Life Laboratory (SciLifeLab)
- Swedish Fund for Research Without Animal Experiments, Magnus Bergvalls Stiftelse
- Swedish Research Council [9478, 21386]
- Fundacao para a Ciencia e Tecnologia, Portugal [SFRH/BD/68304/2010]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/68304/2010] Funding Source: FCT
Optimization of drug efficacy in the brain requires understanding of the local exposure to unbound drug at the site of action. This relies on measurements of the unbound drug fraction (f(u,brain)), which currently requires access to brain tissue. Here, we present a novel methodology using homogenates of cultured cells for rapid estimation of f(u,brain). In our setup, drug binding to human embryonic kidney cell (HEK293) homogenate was measured in a small-scale dialysis apparatus. To increase throughput, we combined drugs into cassettes for simultaneous measurement of multiple compounds. Our method estimated f(u,brain) with an average error of 1.9-fold. We propose that our simple method can be used as an inexpensive, easily available and high-throughput alternative to brain tissues excised from laboratory animals. Thereby, estimates of unbound drug exposure can now implemented at a much earlier stage of the drug discovery process, when molecular property changes are easier to make.
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