Identification of ATPAF1 as a novel candidate gene for asthma in children

Eric M Schauberger1, Susan L Ewart, Syed H Arshad

  • 1Michigan State University, East Lansing, MI, USA.

Insights

Genetic variations in the ATPAF1 gene are linked to childhood asthma susceptibility across diverse ancestries. This finding aids in predicting and stratifying asthma risk in children.

Area of Science:

  • Genetics
  • Pediatrics
  • Respiratory Medicine

Background:

  • Childhood asthma is a prevalent condition with a complex genetic basis.
  • Identifying genetic factors is crucial for predicting asthma risk and stratifying patients.

Purpose of the Study:

  • To identify specific genes associated with asthma susceptibility in children.
  • To investigate the role of genetic variations in childhood asthma.

Main Methods:

  • A nested case-control genetic association study was performed on a birth cohort of European ancestry children.
  • Genome-wide genotyping of single nucleotide polymorphisms (SNPs) was conducted, followed by replication in diverse populations.
  • ATPAF1 gene expression was analyzed in bronchial biopsies.

Main Results:

  • A significant association was found between asthma and a cluster of SNPs and haplotypes within the ATPAF1 gene region, with genome-wide significance.
  • Associations were confirmed across multiple ancestries, including Caucasian, African American, and Hispanic populations.
  • Increased ATPAF1 gene expression was observed in asthmatic children's bronchial biopsies compared to controls.

Conclusions:

  • Genetic variations in the ATPAF1 gene contribute to asthma predisposition in children of various ancestries.
  • The ATPAF1 gene is a potential target for understanding and managing childhood asthma.
Abstract

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