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  • Title: Functional identification of the stable transfection C5aR cell line Molt-4.
    Author: Zhang C, Xu R, Wang J, Han G, Chen G, Wang R, Wei H, Shen B, Ma Y, Li Y.
    Journal: Cell Mol Immunol; 2007 Dec; 4(6):461-5. PubMed ID: 18163958.
    Abstract:
    The complement C5 anaphylatoxin receptor is a member of the seven transmembrane-spanning G protein-coupled receptor superfamily that signals through Galphai and Galpha16. C5aR is mostly expressed on neutrophils, macrophages and endothelial cells. C5a and C5aR interaction plays an important role in numerous biological effects such as in vivo cytokine storm which results in inflammatory damage. Considering the limitation of collection of human peripheral blood neutrophils and their short half life, the stably transfected cell line for studying the biological effects of C5aR is needed. In this study, we transfected C5aR gene into Molt-4 cell line and examined the function of ectopic C5aR. Our results showed stable expression of the C5aR in Molt-4 cell line and their interaction with human C5a induced ERK1/2 phosphorylation, Ca++ influx. This stable transfected cell line may provide a useful tool for studying signal pathways related to C5a and C5aR interplay and antibody development specific for C5aR.
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