4.2. Transcriptomic Signatures of IPF Cell Cultures Include the Activation of Cell Cycle Regulators, the Upregulation of Ciliary Movement, and the Predicted Inhibition of the Pulmonary Fibrosis Idiopathic and TGF-β1 Signaling Pathways. Here, TGFB1 is linked to idiopathic interstitial pneumonia.