HUMAN RECOMBINANT CCR9 RECEPTOR
MULTISCREEN™ STABLE CELL LINES
1 vial (2 x 106) frozen cells
Sigma Freezing Medium (C-6164)
Expression vector containing full-length human CCR9 cDNA (GenBank Accession Number: NM_006641) with FLAG tag sequence at N-terminus
Liquid nitrogen upon receiving
Propagation Medium: DMEM, 10% FBS, 1 μg/mL puromycin
Stable in culture for minimum of two months
Background: CCR9 (C-C chemokine receptor type 9) is a thymus-specific receptor for chemokine CCL25 (SCYA25 or TECK). It is an alternative co-receptor with CD4 for HIV-1 infection. Activation of the receptor may lead to potent cFLIP(L)- independent resistance to cycloheximide-induced apoptosis and modest resistance to Fas-mediated apoptosis possibly via activation of multiple signaling components involving Akt and glycogen synthase kinase 3β. Thus, dissection of signaling components involved in the CCR9-mediated antiapoptosis could be a framework for cell survival mechanisms and may provide options for therapeutic interventions.
Application: Functional assays
Figure 1. Dose-dependent inhibition of forskolin-stimulated intracellular cAMP level upon treatment with ligand, measured with MultiscreenTM TR-FRET cAMP 1.0 No Wash Assay Kit (Multispan MSCM01). Figure 2. Dose-dependent stimulation of calcium flux upon treatment with ligand, measured with MultiscreenTM Calcium 1.0 No Wash Assay Kit (Multispan MSCA01). Figure 3. Receptor expression on cell surface measured by flow cytometry (FACS) using an anti-FLAG antibody. Thin line: parental cells; thick line: receptor-expressing cells.
Youn et al. (2002) Role of the CC chemokine receptor 9/TECK interaction in apoptosis. Apoptosis 7:271-276.
Zaballos et al. (1999) Cutting edge: identification of the orphan chemokine receptor GPR-9-6 as CCR9, the receptor for the chemokine TECK. J Immunol 162(10):5671- 5.