The differential frequency of Lineage−CRTH2−CD45+NKp44−CD117−CD127+ILC subset in the inflamed terminal ileum of patients with Crohn's disease

Deregulation of various components of the immune system has been reported in the inflamed gut of Crohn's disease (CD) patients. Innate lymphoid cells (ILCs) are novel innate effector lymphocytes which can rapidly respond to danger signals, from invading pathogens or tissue damage, to maintain homeostasis, especially along the mucosal surfaces. The purpose of this study is to compare composition of the intestinal ILCs subsets of CD patients with differential inflammatory conditions of the terminal ileum, which are marked by distinct histological appearances and mucosal profiles of cytokines. We observed alterations in the frequency of Lineage−CRTH2−CD45+NKp44−CD117−CD127+ILC subset in the inflamed terminal ileum.