Identifying new antiepileptic drugs through genomics-based drug repurposing

Mirza, N., Sills, G. J., Pirmohamed, M. and Marson, A. G. (2017) Identifying new antiepileptic drugs through genomics-based drug repurposing. Human Molecular Genetics, 26(3), pp. 527-537. (doi:10.1093/hmg/ddw410) (PMID:28053048)

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Abstract

Currently available antiepileptic drugs (AEDs) fail to control seizures in 30% of patients. Genomics-based drug repurposing (GBR) offers the potential of savings in the time and cost of developing new AEDs. In the current study, we used published data and software to identify the transcriptomic signature of chornic temporal lobe epilepsy and the drugs that reverse it. After filtering out compounds based on exclusion criteria, such as toxicity, 36 drugs were retained. 11 of the 36 drugs identified (>30%) have published evidence of the antiepileptic efficacy (for example, curcumin) or antiepileptogenic affect (for example, atorvastatin) in recognised rodent models or patients. By objectively annotating all ∼20,000 compounds in the LINCS database as either having published evidence of antiepileptic efficacy or lacking such evidence, we demonstrated that our set of repurposable drugs is ∼6-fold more enriched with drugs having published evidence of antiepileptic efficacy in animal models than expected by chance (P-value <0.006). Further, we showed that another of our GBR-identified drugs, the commonly-used well-tolerated antihyperglycemic sitagliptin, produces a dose-dependent reduction in seizures in a mouse model of pharmacoresistant epilepsy. In conclusion, GBR successfully identifies compounds with antiepileptic efficacy in animal models and, hence, it is an appealing methodology for the discovery of potential AEDs.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sills, Dr Graeme
Authors: Mirza, N., Sills, G. J., Pirmohamed, M., and Marson, A. G.
College/School:College of Medical Veterinary and Life Sciences
Journal Name:Human Molecular Genetics
Publisher:Oxford University Press
ISSN:0964-6906
ISSN (Online):1460-2083
Published Online:04 January 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Human Molecular Genetics 26(30):527-537
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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