They demonstrated increased angiogenic activity in a large number of IPF lung specimens [41,42] and speculated that there it may be an opposing balance of angiogenic (CXCL8, CXCL5) and angiostatic factors (CXCL10) that favors angiogenesis [41,42]. The gene discussed is CXCL10; the disease is idiopathic interstitial pneumonia.