(A–F) Expression of LOX, LOXL1, LOXL2, LOXL3, LOXL4, and PLOD2 in healthy alveolar septae, IPF alveolar septae and IPF fibroblast foci (n = 10 individual healthy and IPF donors). The gene discussed is PLOD2; the disease is idiopathic pulmonary fibrosis.