Ready-to-Assay# CXCR2 Frozen Cells

Application

Human CXCR2 / IL-8b GPCR frozen cells for Calcium Flux FLIPR Assays.

Biochem/physiol Actions

GPCR Class: A Protein Target: CXCR2/ IL-8b Target Sub-Family: Chemokine

Cell Line Description

GPCR Cell Lines Host cells: Chem-1

Components

Pack contains 2 vials of mycoplasma-free cells, 1 ml per vial.Fifty (50) mL of Media Component.

Disclaimer

This product contains genetically modified organisms (GMO). Within the EU GMOs are regulated by Directives 2001/18/EC and 2009/41/EC of the European Parliament and of the Council and their national implementation in the member States respectively.

General description

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.

CXCR2 is a 7-TM G-protein coupled receptor that binds to the chemokines GRO, GRO, GRO, IL-8, ENA-78, NAP-2 and GCP-2 (Olson and Ley, 2002). Neutrophils, mast cells and microvascular endothelial cells express CXCR2, and ligand interactions with CXCR2 promote chemotaxis of these cell types (Heidemann et al., 2003; Nilsson et al., 1999; White et al., 1998). Studies with mice lacking CXCR2 indicate that CXCR2 promotes growth of primary tumors and secondary metastases (Keane et al., 2004), and plays an essential role in hyperoxia-induced lung injury (Sue et al., 2004). In addition, cytomegalovirus encodes a CXCR2-binding chemokine, vCXC-1, that promotes neutrophil migration to infected cells (Penfold et al., 1999). Millipore’;s cloned human CXCR2 ]-expressing cell line is made in the Chem-1 host, which supports high levels of recombinant CXCR2 expression on the cell surface and contains high levels of the promiscuous G protein Gα15 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 CXCR2.