Association of genetic variants in the autophagy gene ATG4B with asthma
DeWan, A. T.; Nicholson, D.
Show abstract
Asthma is a chronic respiratory illness that causes mild to severe inflammation throughout narrowed airways. During allergic airways inflammation, autophagy prevents extensive lung tissue impairment while inducing a protective anti-pathogen response and macrophages in the lung to maintain homeostasis. Previous studies of autophagy genes and asthma have shown an association with variants in ATG5, but a comprehensive analysis of autophagy related genes and asthma has not been performed. Here we utilize summary statistic data generated from a two-stage genome-wide association study (GWAS) of asthma in the UK Biobank. We examined variants in 21 autophagy related genes and found statistically significant associations for 28 variants in two genes in the discovery dataset and nominally significant replication for 16 of these variants, all annotated to ATG4B. This is the first evidence of an association with variants in ATG4B with asthma which provides a novel potential for future drug development.
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