YM 58483
Chemical Name: N-[4-[3,5-Bis(trifluoromethyl)-1H-pyrazol-1-yl]phenyl]-4-methyl-1,2,3-thiadiazole-5-carboxamide
Purity: ≥99%
Biological Activity
Blocker of store-operated Ca2+ entry (SOCE), which mediates the activation of non-excitable cells (e.g. lymphocytes). Inhibits calcium release-activated calcium (CRAC) channels; suppresses thapsigargin-induced sustained Ca2+ influx (IC50 = 100 nM). Displays immuno-modulatory and anti-inflammatory effects; suppresses cytokine production and proliferation of T cells in vitro.Technical Data
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Background References
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A pyrazole derivative, YM-58483, potently inhibits store-operated sustained Ca2+ influx and IL-2 production in T lymphocytes.
Ishikawa et al.
J.Immunol., 2003;170:4441 -
Potent inhibition of Ca2+ release-activated Ca2+ channels and T-lymphocyte activation by the pyrazole derivative BTP2.
Zitt et al.
J.Biol.Chem., 2004;26:12427 -
Characterization of YM-58483/BTP2, a novel store-operated Ca2+ entry blocker, on T cell-mediated immune responses in vivo.
Ohga et al.
Int.Immunopharmocol., 2008;8:1787
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Citations for YM 58483
The citations listed below are publications that use Tocris products. Selected citations for YM 58483 include:
2 Citations: Showing 1 - 2
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A store-operated calcium channel inhibitor attenuates collagen-induced arthritis.
Authors: Gao Et al.
Br J Pharmacol 2015;172:2991
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Potent analgesic effects of a store-operated calcium channel inhibitor.
Authors: Gao Et al.
Pain 2013;154:2034
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YM 58483 was used to study the role of the MRGPRX2 receptor in store-operated calcium entry using human mast cells (LAD2 cells). At a concentration of 0.3 and 1 uM of YM58483 inhibited the calcium entry induced by cortistatin in mast cells.
HEK293 cells were incubated with intracellular Ca2+ sensitive dye, Fura-2AM in normal tyrode solution for 40 min, washed and kept aside for 20 min. Fura2-loaded cells were excited alternately at 340 and 380 nm and fluorescence at 510 nm was expressed as 340/380 ratio. Intracellular Ca2+ stores were depleted with 30 μM BHQ which promotes store-operated Ca2+ entry into the cells upon addition of 1 mM extracellular Ca2+. Preincubation of cells with 10 μM BTP2 (YM 58483) for 10 min attenuates this Ca2+ entry.
Used to block SOCE mechanism but no effect was seen. Unsure about efficacy of the compound, it might be a lack of SOCE involvement in the biological process studied here.
