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February 23, 2023Nature GeneticsOpen Access

Network expansion of genetic associations defines a pleiotropy map of human cell biology

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Key result

Network-based expansion of GWAS data across 1,002 human traits identified 73 pleiotropic gene modules, recovering known disease genes and highlighting targets for drug repurposing.

Why the study?

Interacting proteins tend to have similar functions influencing organismal traits, and interaction networks can expand candidate trait-associated genes from genome-wide association studies.

Population

1,002 human traits

Comparison

Network-based expansion of trait-associated genes

Authors

IBInigo Barrio‐HernandezAgrobiotechnology InstituteJSJeremy SchwartzentruberWellcome Sanger InstituteASAnjali ShrivastavaWellcome Sanger Institute

Discussion

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Implication

May inform cardiovascular drug repurposing via pleiotropic targets; extends GWAS interpretation but remains hypothesis-generating pending validation.

Structured PICO

P
Population
A computational network expansion analysis of genome-wide association study data across 1,002 human traits to map pleiotropic gene modules and identify drug repurposing opportunities.
E
Exposure
Network-based expansion of trait-associated genes
O
Outcome
Identification of pleiotropic gene modules and recovery of known disease genes or drug targets

Network-based expansion of GWAS data identifies pleiotropic gene modules that can map targets of approved drugs for repurposing and implicate disease-relevant genes.

Limitations

  • Genes identified by network expansion lack information on the direction of effect.
  • Targeting highly pleiotropic processes could raise safety concerns.
  • Trait-to-module analysis tends to miss pleiotropy that is highly essential to cells, as such perturbations may be lethal and not observed in human populations.

Cite This Study

Barrio‐Hernandez et al. (2023) studied 1,002 human traits (GWAS data). Network-based expansion of trait-associated genes was evaluated on Identification of pleiotropic gene modules linked to multiple traits. Network-based expansion of GWAS data across 1,002 human traits identified 73 pleiotropic gene modules, recovering known disease genes and highlighting targets for drug repurposing.

synapsesocial.com/papers/6a5efb29531077db68af2153https://doi.org/10.1038/s41588-023-01327-9
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Also Consider

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  1. 1The Chemical Genomic Portrait of Yeast: Uncovering a Phenotype for All Genes2008 · 1,057 citations
  2. 2Predicting disease genes using protein–protein interactions2006 · 593 citations