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

MIP-1 gamma: molecular cloning, expression, and biological activities of a novel CC chemokine that is constitutively secreted in vivo.

We have identified a novel CC chemokine family member, herein termed MIP-1 gamma in view of its similarity to existing members of the MIP-1 group. The murine protein has a predicted length of 100 amino acids. Like MIP-1 alpha, recombinant MIP-1 gamma acts as a pyrogen when administered intracerebroventricularly. MIP-1 gamma and MIP-1 alpha engage the same high-affinity receptor on neutrophils, activating calcium release within seconds following cell contact. Pretreatment with either chemokine abolishes responses to the other, and to itself, suggesting utilization of a common signaling pathway. However, unlike MIP-1 alpha or any of the other CC chemokines, MIP-1 gamma is expressed constitutively by a wide variety of tissues, and circulates in the blood of healthy mice at concentrations of approximately 1 microgram/ml (90 nM). It would therefore be predicted that MIP-1 gamma occupies most of the CC chemokine receptors that exist in the intravascular compartment. As such it might, under normal circumstances, markedly influence responses to the inducible CC chemokines.[1]

References

  1. MIP-1 gamma: molecular cloning, expression, and biological activities of a novel CC chemokine that is constitutively secreted in vivo. Poltorak, A.N., Bazzoni, F., Smirnova, I.I., Alejos, E., Thompson, P., Luheshi, G., Rothwell, N., Beutler, B. J. Inflamm. (1995) [Pubmed]
 
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