Furthermore, expression of JUNB‐LOF in human primary fibroblasts treated with IPF‐stimuli exerts a reduction in the pro‐fibrotic response, suggesting the effect of O‐GlcNAcylated JUNB extends beyond epithelial cells in driving pro‐fibrotic responses (Figure S5E–I, Supporting Information). The gene discussed is JUNB; the disease is idiopathic pulmonary fibrosis.