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Identifying nootropic drug targets via large-scale cognitive GWAS and transcriptomics
Max Lam1,2,3,4,5, Chia-Yen Chen3,6,7, Tian Ge2,7
1Division of Psychiatry Research, The Zucker Hillside Hospital, Glen Oaks, NY, USA.
Summary
This study identifies novel genes and pathways linked to general cognitive ability using large-scale genetic data. It also pinpoints existing drugs that could be repurposed to treat cognitive deficits in severe mental illness.
Area of Science:
- Neuroscience
- Genetics
- Pharmacology
Background:
- Cognitive deficits are a major challenge in severe mental illness, with limited treatment options.
- Genome-wide association studies (GWAS) offer potential for discovering new drug targets for cognitive enhancement.
Purpose of the Study:
- To meta-analyze cognitive GWAS data for enhanced locus discovery.
- To identify cognition-associated genes using transcriptomic methods.
- To find druggable gene targets for repurposing existing medications.
Main Methods:
- Meta-analysis of two cognitive GWAS datasets (N=373,617).
- Application of complementary transcriptomic approaches to identify candidate genes.
- Chemoinformatic database analysis to assess target druggability.
Main Results:
- Identified 241 independent cognition-associated loci, including 29 novel ones.
- Pinpointed 76 genes associated with cognition via multiple methods.
- Discovered actin and chromatin binding as novel pathways for drug repurposing.
- Identified 16 genes targeted by existing drugs for potential cognitive repurposing.
Conclusions:
- This research provides a robust set of cognition-associated genes and pathways.
- Identified druggable targets and existing medications offer promising avenues for treating cognitive impairments in severe mental illness.
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