As a further confirmation, we observed that at the transcriptional level, IPF (SN) induced a positive regulation of TNFR1 in T cells at 3 h, whereas CLF (SN) induced a negative regulation (Figure 6D), and at 24 h, both supernatants provoked a negative regulation. This evidence concerns the gene TNFRSF1A and idiopathic pulmonary fibrosis.