Another gel forming mucin MUC5AC, normally expressed in non-intestinal mucosa, has been reported to be expressed in the intestine, along with MUC2, during inflammation in diseases such as ulcerative colitis and adenocarcinoma and report state that MUC5AC acts as a direct and critical mediator of resistance during intestinal nematode infection [6], [7]. This evidence concerns the gene MUC5AC and ulcerative colitis.