Besides the participation in the host response against pathogens, IL-17 is also involved in a number of other pathologies that include allergic and autoimmune diseases (Oboki et al., 2008; Cosmi et al., 2011; Newcomb and Peebles, 2013; Zhao et al., 2013; Manni et al., 2014; Naji et al., 2014). This evidence concerns the gene IL17A and autoimmune disease.