KEAP1 and pulmonary fibrosis: In this study, we have found that the expression of Keap1 and Nrf2 are abnormal in mouse models of pulmonary fibrosis and pulmonary fibrosis cells, that is, Keap1 is highly expressed and Nrf2 is low, indicating that the Keap1/Nrf2 signaling pathway is affected by lung fibrosis.