Ready-to-Assay CX3CR1 Chemokine Receptor Frozen Cells

Millipore’s Ready-to-Assay GPCR frozen cells are designed for simple, rapid calcium assays with no requirement for intensive cell culturing. Millipore has optimized the freezing conditions to provide cells with high viability and functionality post-thaw. The user simply thaws the cells and resuspends them in media, dispenses cell suspension into assay plates and, following over night recovery, assays for calcium response.

CX3CR1 is a GPCR expressed on natural killer cells, cytotoxic T lymphocytes, and macrophages. The sole ligand for CX3CR1, fractalkine, is an unusual chemokine that is expressed as a transmembrane molecule with a CX3C domain and a mucin domain (Imai et al., 1997). Fractalkine is highly expressed on endothelial cells activated by TNFα and other proinflammatory cytokines, and fractalkine/CX3CR1 interactions mediate recruitment of macrophages into the atherosclerotic plaque (Lesnick et al., 2003; McDermott et al., 2003). In addition, fractalkine and CX3CR1 have been implicated in the pathogenesis of glomerulonephritis, HIV infection and rheumatoid arthritis (Ito et al., 2002; Faure et al., 2003; Nanki et al., 2002). Millipore′s cloned human CX3CR1 –expressing cell line is made in the Chem-4 host, which supports high levels of recombinant CX3CR1 expression on the cell surface and contains optimized levels of a recombinant promiscuous G protein to couple the receptor to the calcium signaling pathway. Thus, the cell line is an ideal tool for screening for agonists, antagonists and modulators at CX3CR1.

Chem-4

GPCR Cell Lines

Human CX3CR1 GPCR frozen cells for Calcium Flux FLIPR Assays.

GPCR Class: A

Protein Target: CX3CR1

Target Sub-Family: Chemokine

Pack contains 2 vials of mycoplasma-free cells, 1 ml per vial.

Fifty (50) mL of Media Component.

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