Pin1 has been implicated in control of mRNA stability and turnover of the cytokine GM-CSF [104,105,106], Pth [107,108], and TGFβ [109] mRNAs, all of which have AU-rich cis-elements (ARE) in their 3' untranslated regions (3' UTRs) and play important roles in control of the immune response in inflammation and asthma. The gene discussed is PIN1; the disease is asthma.