CCL28
Description
The CCL28 (C-C motif chemokine ligand 28) is a protein-coding gene located on chromosome 5.
CCL28, also known as mucosae-associated epithelial chemokine (MEC), CCK1 and SCYA28, is a chemokine that regulates the chemotaxis of cells expressing the chemokine receptors CCR3 and CCR10. CCL28 is expressed by columnar epithelial cells in the gut, lung, breast and the salivary glands and drives the mucosal homing of T and B lymphocytes that express CCR10, and the migration of eosinophils expressing CCR3. This chemokine is constitutively expressed in the colon, but its levels can be increased by pro-inflammatory cytokines and certain bacterial products, suggesting a role in effector cell recruitment to sites of epithelial injury. CCL28 has also been implicated in the migration of IgA-expressing cells to the mammary gland, salivary gland, intestine and other mucosal tissues. It has also been shown as a potential antimicrobial agent effective against certain pathogens, such as Gram negative and Gram positive bacteria and the fungus Candida albicans. Human CCL28 is encoded by an RNA transcript of 373 nucleotides and a gene with four exons. The gene codes for a 127-amino acid CCL28 protein with a 22-amino acid N-terminal signal peptide. It shares 76% nucleic acid identity and 83% amino acid similarity to the equivalent molecule in mouse. Sequence analysis has revealed CCL28 to be most similar to another CC chemokine called CCL27.
CCL28 is also known as CCK1, MEC, SCYA28.
Associated Diseases
- ovarian cancer
- breast cancer
- isolated agammaglobulinemia
- severe combined immunodeficiency due to CARD11 deficiency
- common variable immunodeficiency
- T-B+ severe combined immunodeficiency due to JAK3 deficiency
- autoimmune lymphoproliferative syndrome due to CTLA4 haploinsuffiency
- immunodeficiency 14b, autosomal recessive
- immunodeficiency 18
- immunodeficiency 70
- immunodeficiency, common variable, 14