Several mediators and effectors of the non‐canonical IKB kinase pathway such as interleukin 1β (IL1β), Toll‐like receptors (TLRs), and interferon γ (IFNγ) were seen upregulated in a meta‐analysis of PAH blood genome (Elinoff et al., 2020). Here, IFNG is linked to pulmonary arterial hypertension.