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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Identification of CCR8: a human monocyte and thymus receptor for the CC chemokine I-309.

The human CC chemokine I-309 is a potent monocyte chemoattractant and inhibits apoptosis in thymic cell lines. Here, we identify a specific human I-309 receptor, and name it CCR8 according to an accepted nomenclature system. The receptor has seven predicted transmembrane domains, is expressed constitutively in monocytes and thymus, and is encoded by a previously reported gene of previously unknown function named, alternatively, CY6, TER1, and CKR-L1. After transfection with the CY6 open reading frame, a mouse pre-B cell line exhibited calcium flux and chemotaxis in response to I-309 (EC50 = 2 nM for each), whereas 20 other chemokines were inactive. Signaling was sensitive to pertussis toxin, suggesting coupling to a Gi-type G protein. These properties parallel those of endogenous I-309 receptors expressed in an HL-60 clone 15 cell line model. The apparent monogamous relationship between I-309 and CCR8 is unusual among known CC chemokines and known CC chemokine receptors. CCR8 may regulate monocyte chemotaxis and thymic cell line apoptosis.[1]


  1. Identification of CCR8: a human monocyte and thymus receptor for the CC chemokine I-309. Tiffany, H.L., Lautens, L.L., Gao, J.L., Pease, J., Locati, M., Combadiere, C., Modi, W., Bonner, T.I., Murphy, P.M. J. Exp. Med. (1997) [Pubmed]
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