Moreover, the expression of IL-17 in the airways was found to contribute to the advancement of asthma by inducing the infiltration of neutrophils, excessive production of mucus, an increase in the number of goblet cells, the differentiation of myofibroblasts, and the proliferation of airway smooth muscles (Newcomb and Peebles, 2013; Ramakrishnan et al., 2019). The gene discussed is IL17A; the disease is asthma.