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

Functional expression of the fractalkine (CX3C) receptor and its regulation by lipopolysaccharide in rat microglia.

Functional expression of CX3CR1, a recently discovered receptor for the chemokine fractalkine, was investigated in cultured rat microglia. Reverse transcriptase polymerase chain reaction (PCR) experiments show abundant expression of fractalkine receptor mRNA in microglia. mRNA expression of fractalkine was undetectable in astrocytes and microglia but was very strong in cortical neurons. Incubation of microglia with lipopolysaccharide (100 ng/ml) transiently suppressed expression of fractalkine receptor mRNA. Fractalkine induced a concentration-dependent (10(-10)-10(-8) M) and, at high concentrations, oscillatory mobilization of intracellular Ca2+ in microglia The concentration-response curve of fractalkine was shifted to the right after 12 h incubation with lipopolysaccharide. It is concluded that treatment with endotoxin downregulates expression of fractalkine receptor mRNA in rat microglia and suppresses the functional response to fractalkine.[1]

References

  1. Functional expression of the fractalkine (CX3C) receptor and its regulation by lipopolysaccharide in rat microglia. Boddeke, E.W., Meigel, I., Frentzel, S., Biber, K., Renn, L.Q., Gebicke-Härter, P. Eur. J. Pharmacol. (1999) [Pubmed]
 
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