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Whole transcriptome in-silico screening implicates cardiovascular and infectious disease in the mechanism of action underlying atypical antipsychotic side-effects

By Yasaman Malekizadeh, Gareth Williams, Mark Kelson, David Whitfield, Jonathan Mill, David A Collier, Clive Ballard, Aaron Jeffries, Byron Creese

Posted 09 Apr 2020
bioRxiv DOI: 10.1101/2020.04.09.033472 (published DOI: 10.1002/trc2.12078)

INTRODUCTION Stroke/thromboembolic events, infections and death are all significantly increased by antipsychotics in dementia but little is known about why they can be harmful. Using a novel application of a drug repurposing paradigm, we aimed to identify potential mechanisms underlying adverse events. METHOD Whole transcriptome signatures were generated for SH-SY5Y cells treated with amisulpride, risperidone and volinanserin using RNA-sequencing. Bioinformatic analysis was performed which scored the association between antipsychotic signatures and expression data from 415,252 samples in the NCBI GEO repository. RESULTS Atherosclerosis, venous thromboembolism and influenza NCBI GEO-derived samples scored positively against antipsychotic signatures. Pathways enriched in antipsychotic signatures were linked to the cardiovascular and immune systems (e.g. BDNF, PDGFR-beta, TNF, TGF-beta, selenoamino acid metabolism and influenza infection). CONCLUSION These findings for the first time mechanistically link antipsychotics to specific cardiovascular and infectious diseases which are known side effects of their use in dementia, providing new information to explain related adverse events. ### Competing Interest Statement CB has received grants and personal fees from ACADIA Pharmaceuticals and Lundbeck, and personal fees from Heptares, Roche, Lilly, Otsuka, Orion, GlaxoSmithKline and Pfizer. DAC is an employee of Eli Lilly and Company Ltd.

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