In the TSLP/DC/OX40L pathway, TSLP triggers the Th2 mediated allergic cascade by induction of OX40-ligand (OX40L) on DCs, may contribute to asthma pathogenesis and airway inflammation by modulating level of CD4+CD25+Treg cells and the profile of inflammatory cytokines (Murakami-Satsutani et al., 2014; Feng et al., 2017). This evidence concerns the gene TSLP and asthma.