MEC or chemokine (C-C motif) ligand 28 (CCL28) is a secreted CC chemokine expressed primarily by epithelial cells of the bronchioles, salivary gland, mammary gland and colon. MEC contains six cysteines including the four highly conserved cysteine residues present in CC chemokines. Recombinant murine MEC is a 12.6kDa protein containing 111 amino acid residues.
Chemokine (C-C motif) ligand 28 (CCL28) or MEC signals through the CCR10 receptor and chemoattracts resting CD4, CD8 T-cells, IgA-secreting plasma cells and eosinophils. It has been shown to exhibit antimicrobial activity against bacteria and fungi.
