Carbonic anhydrase 4 restrains dual TLR4–NF-κB/IRF3 innate immune signaling and epithelial-mesenchymal transition in methotrexate-induced pulmonary fibrosis
BackgroundMethotrexate (MTX)-induced pulmonary fibrosis (MTX-PF) is the most severe and frequently irreversible manifestation of MTX pulmonary toxicity, yet the molecular target and signaling circuitry linking drug exposure to fibrosis remain undefined…