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Calcium mobilization via sphingosine kinase in signalling by the FcɛRI antigen receptor
CALCIUM mobilization through antigen receptors, including high-affinity IgE receptors (FcsRI), is thought to be mediated by inositol-l,4,5-trisphosphate production (InsP3)1–4. Here we show that… Expand
Calcium mobilization via sphingosine kinase in signalling by the Fc epsilon RI antigen receptor.
Calcium mobilization through antigen receptors, including high-affinity IgE receptors (Fc epsilon RI), is thought to be mediated by inositol-1,4,5-trisphosphate production (InsP3). Here we show that… Expand
Inhibition of FcepsilonRI-dependent mediator release and calcium flux from human mast cells by sialic acid-binding immunoglobulin-like lectin 8 engagement.
- H. Yokoi, O. H. Choi, +9 authors B. Bochner
- Biology, Medicine
- The Journal of allergy and clinical immunology
- 1 February 2008
BACKGROUND Sialic acid-binding immunoglobulin-like lectins (Siglecs) are a family of glycan-binding inhibitory receptors, and among them, Siglec-8 is selectively expressed on human eosinophils,… Expand
Carbachol induces secretion in a mast cell line (RBL‐2H3) transfected with the ml muscarinic receptor gene
The possibility that the ml muscarinic receptor subtype can induce release of intracellular granules and transmitters was studied by transfecting a cultured mast cell line, RBL‐2H3 cells, with the ml… Expand
Agonists of the Mas-Related Gene (Mrgs) Orphan Receptors as Novel Mediators of Mast Cell-Sensory Nerve Interactions1
IgE-dependent activation of mast cell activation is often associated with symptoms attributed to activation of sensory nerves. Depending on the tissues involved such symptoms include itching,… Expand
Caffeine and theophylline analogues: correlation of behavioral effects with activity as adenosine receptor antagonists and as phosphodiesterase inhibitors.
The behavioral stimulant effects of xanthines, such as caffeine and theophylline, appear to involve blockade of central adenosine receptors. However, 3-isobutyl-1-methylxanthine (IBMX), a potent… Expand
Antigen-induced Ca2+ mobilization in RBL-2H3 cells: role of I(1,4,5)P3 and S1P and necessity of I(1,4,5)P3 production.
- H. Lee, Chang-Shin Park, Y. Lee, H. Suk, Tameka C M Clemons, O. H. Choi
- Biology, Medicine
- Cell calcium
- 1 December 2005
Inositol 1,4,5-trisphosphate (IP3) has long been recognized as a second messenger for intracellular Ca2+ mobilization. Recently, sphingosine 1-phosphate (S1P) has been shown to be involved in Ca2+… Expand
Secretion from rat basophilic RBL-2H3 cells is associated with diphosphorylation of myosin light chains by myosin light chain kinase as well as phosphorylation by protein kinase C.
- O. H. Choi, R. Adelstein, M. Beaven
- Medicine, Biology
- The Journal of biological chemistry
- 7 January 1994
The phosphorylation of myosin light chains and heavy chains by protein kinase C is known to be temporally correlated with Ca(2+)-dependent secretion of granules from RBL-2H3 cells (Ludowyke, R. I.,… Expand
Sustained activation of phospholipase D via adenosine A3 receptors is associated with enhancement of antigen- and Ca(2+)-ionophore-induced secretion in a rat mast cell line.
- H. Ali, O. H. Choi, P. Fraundorfer, K. Yamada, H. M. Gonzaga, M. Beaven
- Biology, Medicine
- The Journal of pharmacology and experimental…
- 1 February 1996
The adenosine analog, N-ethylcarboxamidoadenosine (NECA), causes transient activation of phospholipase C and an enhancement of antigen-induced secretion in a rat mast cell (RBL-2H3) line via… Expand
Effects of the amphiphilic peptides melittin and mastoparan on calcium influx, phosphoinositide breakdown and arachidonic acid release in rat pheochromocytoma PC12 cells.
Two amphiphilic peptides from hymenopterid insects, melittin and mastoparan, stimulate secretion in a variety of cell types. In PC12 cells, both peptides stimulate calcium influx with melittin some… Expand