Cutting edge: Identification of the orphan chemokine receptor GPR-9-6 as CCR9, the receptor chemokine TECK

Citation
A. Zaballos et al., Cutting edge: Identification of the orphan chemokine receptor GPR-9-6 as CCR9, the receptor chemokine TECK, J IMMUNOL, 162(10), 1999, pp. 5671-5675
Citations number
21
Categorie Soggetti
Immunology
Journal title
JOURNAL OF IMMUNOLOGY
ISSN journal
00221767 → ACNP
Volume
162
Issue
10
Year of publication
1999
Pages
5671 - 5675
Database
ISI
SICI code
0022-1767(19990515)162:10<5671:CEIOTO>2.0.ZU;2-7
Abstract
Thymus-expressed chemokine (TECK) has been reported to chemoattract dendrit ic cells, thymocytes, and activated macrophages. Here, we show that TECK is a specific agonist for a human orphan receptor called GPR-9-6, We have det ermined the cDNA sequence of human GPR-9-6 and cloned the corresponding mur ine cDNA, Human and murine GPR-9-6 expression is very high in the thymus an d low in lymph nodes and spleen. RT-PCR analysis of murine GPR-9-6 expressi on on murine FAGS-sorted thymocyte subpopulations showed that this gene is expressed in both immature and mature T cells, Additions of human or murine TECK to HEK 293/human GPR-9-6 and HEK 293/murine GPR-9-6 transfectants pro voked intracytoplasmic calcium mobilization. Human TECK also induced the in vitro migration of HEK 293/human GPR-9-6 cells. These results confirm that GPR-9-6 is a specific receptor for TECK, According to the established nome nclature system, we propose to rename GPR-9-6 as CC chemokine receptor 9 (C CR9).