Journal
EUROPEAN JOURNAL OF IMMUNOLOGY
Volume 38, Issue 2, Pages 334-337Publisher
WILEY
DOI: 10.1002/eji.200738101
Keywords
cell migration; chemokine receptors; signal transduction
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Dimerization has emerged as a common mechanism for regulating the function of G protein-coupled receptors (GPCR). Among these are chemokine receptors, which detect various chemokines and regulate a range of physiological process, including immune cell trafficking, cancer cell migration, and neuronal patterning. Homo- and heterodimerization in response to chemokine binding has been shown to be required for the initiation or alteration of signaling by a number of chemokine receptors. In this issue of the European Journal of Immunology, a new study indicates that the formation of heterodimers of chemokine receptor CXCR4 and the delta-opioid receptor (DOR) prevents each of them from actively signaling, suggesting a novel mechanism for silencing GPCR function.
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