MUC2 and colitis: As it has been previously described in this experimental model of colitis (Garrido-Mesa et al., 2011, 2015), the colonic inflammation was associated with a reduced expression of different proteins involved in the epithelial integrity and barrier function of the colonic mucosa, like the mucins MUC-3 and MUC-2, as well as OCLN and ZO-1.