High levels of IL-17 have also been demonstrated in BAL fluid and peripheral blood among patients with ICI-Pneumonitis, indicative of the therapeutic potential of monoclonal antibody targeting of this cytokine or its receptor in this irAE (Petri et al., 2019; Stroud et al., 2019; Kim et al., 2021; Tyan et al., 2021). The gene discussed is IL17A; the disease is pneumonitis.