GADD45B and idiopathic pulmonary fibrosis: Reduced NFKBIZ expression in IPF alveolar septae was further validated by interrogation of a publicly available laser-capture-microdissection RNA-seq dataset of IPF alveolar septae, confirming a reduction in the expression of NFKBIZ, IL6 and GADD45B in IPF alveolar septae compared with control tissue (Figures 7L–7N).