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chemokine (C-C motif) ligand 27
Alt. symbolsSCYA27, ALP, ILC, CTACK, skinkine, ESkine, PESKY, CTAK
Other data
LocusChr. 9 q13

Chemokine (C-C motif) ligand 27 (CCL27) is a small cytokine belonging to the CC chemokine family also known under the names IL-11 R-alpha-locus chemokine (ILC), Skinkine, ESkine and Cutaneous T-cell-attracting chemokine (CTACK). It is associated with homing of memory T lymphocytes to the skin, and plays a role in T cell-mediated inflammation of the skin.[1][2] CCL27 is expressed in numerous tissues, including gonads, thymus, placenta and skin. It elicits its chemotactic effects by binding to the chemokine receptor CCR10.[3] The gene for CCL27 is located on human chromosome 9.[4]


  1. Morales et al. CTACK, a skin-associated chemokine that preferentially attracts skin-homing memory T cells. Proc. Natl. Acad. Sci. U.S.A. 96:14470-14475, 1999.
  2. Homey et al. CCL27-CCR10 interactions regulate T cell-mediated skin inflammation. Nature Med. 8: 157-165, 2002.
  3. Homey et al. The orphan chemokine receptor G protein-coupled receptor-2 (GPR-2, CCR10) binds the skin-associated chemokine CCL27 (CTACK/ALP/ILC). J. Immunol. 164:3465-3470, 2000.
  4. Ishikawa-Mochizuki et al. Molecular cloning of a novel CC chemokine, interleukin-11 receptor alpha-locus chemokine (ILC), which is located on chromosome 9p13 and a potential homologue of a CC chemokine encoded by molluscum contagiosum virus. FEBS Lett. 460:544-548, 1999.