FTX and asthma: In human airway SMCs, PDGF-BB stimulation suppresses lncRNA-H19 and increases the expression of lncRNAs such as taurine-upregulated gene 1 (TUG1), Malat1, plasmacytoma variant translocation 1 (PVT1), five prime to Xist (FTX), NEAT1, long intergenic non-protein coding RNA 882 (LINC00882), and lncTCF7, thereby regulating asthma and the phenotype of human airway SMCs [153,154].