Identification of evolutionarily conserved gene networks mediating neurodegenerative dementia

International Frontotemporal Dementia Genomics Consortium

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Identifying the mechanisms through which genetic risk causes dementia is an imperative for new therapeutic development. Here, we apply a multistage, systems biology approach to elucidate the disease mechanisms in frontotemporal dementia. We identify two gene coexpression modules that are preserved in mice harboring mutations in MAPT, GRN and other dementia mutations on diverse genetic backgrounds. We bridge the species divide via integration with proteomic and transcriptomic data from the human brain to identify evolutionarily conserved, disease-relevant networks. We find that overexpression of miR-203, a hub of a putative regulatory microRNA (miRNA) module, recapitulates mRNA coexpression patterns associated with disease state and induces neuronal cell death, establishing this miRNA as a regulator of neurodegeneration. Using a database of drug-mediated gene expression changes, we identify small molecules that can normalize the disease-associated modules and validate this experimentally. Our results highlight the utility of an integrative, cross-species network approach to drug discovery.

Original languageEnglish (US)
Pages (from-to)152-164
Number of pages13
JournalNature Medicine
Volume25
Issue number1
DOIs
StatePublished - Jan 1 2019

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Gene Regulatory Networks
Dementia
Genes
MicroRNAs
Pharmaceutical Databases
Frontotemporal Dementia
Mutation
Systems Biology
Cell death
Drug Discovery
Gene expression
Proteomics
Brain
Cell Death
Gene Expression
Messenger RNA
Molecules
Pharmaceutical Preparations
Therapeutics

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

International Frontotemporal Dementia Genomics Consortium. / Identification of evolutionarily conserved gene networks mediating neurodegenerative dementia. In: Nature Medicine. 2019 ; Vol. 25, No. 1. pp. 152-164.
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Identification of evolutionarily conserved gene networks mediating neurodegenerative dementia. / International Frontotemporal Dementia Genomics Consortium.

In: Nature Medicine, Vol. 25, No. 1, 01.01.2019, p. 152-164.

Research output: Contribution to journalArticle

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AU - Swarup, Vivek

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AU - Schofield, Peter R.

AU - Halliday, Glenda M.

AU - Hodges, John R.

AU - Piguet, Olivier

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AU - Thompson, Elizabeth

AU - Haan, Eric

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AU - Cairns, Nigel J.

AU - Cruchaga, Carlos

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AU - Ghidoni, Roberta

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AU - Albani, Diego

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AU - Serpente, Maria

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