Association of KLF6 gene with lung function has been indicated from genomic data and from in vitro experiments which showed that blocking of KLF6 in vitro can decrease transforming growth factor β (TGF-β) production leading to airway remodeling and asthma (Mgbemena et al. 2011; Duan et al. 2014). Here, KLF6 is linked to asthma.