First Author | O'Shea NR | Year | 2016 |
Journal | J Crohns Colitis | Volume | 10 |
Issue | 12 | Pages | 1417-1427 |
PubMed ID | 27226416 | Mgi Jnum | J:301741 |
Mgi Id | MGI:6506917 | Doi | 10.1093/ecco-jcc/jjw111 |
Citation | O'Shea NR, et al. (2016) Critical Role of the Disintegrin Metalloprotease ADAM-like Decysin-1 [ADAMDEC1] for Intestinal Immunity and Inflammation. J Crohns Colitis 10(12):1417-1427 |
abstractText | BACKGROUND AND AIMS: ADAM [A Disintegrin And Metalloproteinase] is a family of peptidase proteins which have diverse roles in tissue homeostasis and immunity. Here, we study ADAM-like DECysin-1 [ADAMDEC1] a unique member of the ADAM family. ADAMDEC1 expression is restricted to the macrophage/dendritic cell populations of the gastrointestinal tract and secondary lymphoid tissue. The biological function of ADAMDEC1 is unknown but it has been hypothesised to play a role in immunity. The identification of reduced ADAMDEC1 expression in Crohn's disease patients has provided evidence of a potential role in bowel inflammation. METHODS: Adamdec1(-/-) mice were exposed to dextran sodium sulphate or infected orally with Citrobacter rodentium or Salmonella typhimurium. The clinical response was monitored. RESULTS: The loss of Adamdec1 rendered mice more susceptible to the induction of bacterial and chemical induced colitis, as evidenced by increased neutrophil infiltration, greater IL-6 and IL-1beta secretion, more weight loss and increased mortality. In the absence of Adamdec1, greater numbers of Citrobacter rodentium were found in the spleen, suggestive of a breakdown in mucosal immunity which resulted in bacteraemia. CONCLUSION: In summary, ADAMDEC1 protects the bowel from chemical and bacterial insults, failure of which may predispose to Crohn's disease. |