Interestingly, EpCam and IL-15 double positive cells were increased in intestinal samples from IBD patients, and particularly from those with UC (CD: median 1.5, range 0.5–3.2%; UC: 1.9, 1.2–5.4%; HC: 0.9, 0.2–2.7%; p<0.02, UC vs HC and p<0.06, CD vs HC), Fig 3B and 3C. The gene discussed is IL15; the disease is inflammatory bowel disease.