NVP-231 is a potent, specific, and reversible CerK inhibitor that competitively inhibits binding of ceramide to CerK. NVP-231 is active in the low nanomolar range on purified as well as cellular CerK and abrogates phosphorylation of ceramide, resulting in decreased endogenous C1P levels. When combined with another ceramide metabolizing inhibitor, such as tamoxifen, NVP-231 synergistically increased ceramide levels and reduced cell growth. Therefore, NVP-231 represents a novel and promising compound for controlling ceramide metabolism that may provide insight into CerK physiological function.
Chemical Formula: C25H25N3O2S
Exact Mass: 431.16675
Molecular Weight: 431.55
Elemental Analysis: C, 69.58; H, 5.84; N, 9.74; O, 7.41; S, 7.43
InChi Code: InChI=1S/C25H25N3O2S/c29-22(18-4-2-1-3-5-18)28-24-27-20-7-6-19(11-21(20)31-24)26-23(30)25-12-15-8-16(13-25)10-17(9-15)14-25/h1-7,11,15-17H,8-10,12-14H2,(H,26,30)(H,27,28,29)
Appearance: White to off-white solid powder
Purity: >98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility: Soluble in DMSO, not in water
Shelf Life: >2 years if stored properly
Drug Formulation: This drug may be formulated in DMSO
Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code: 2934.99.9001
NVP-231 (0-500 nM; 24 hours) gradually reduces the cellular CerK activity, as measured by NBD-C1P formation, demonstrating that NVP-231 active in transfected cells. The IC50 for CerK in this cellular system is 59.70 ± 12 nM.
NVP-231 (0-1000 nM; 48 hours) decreases cell viability as a dose-dependent manner. This compound shows IC50 values of 1 μM in MCF-7 cells and 500 nM in NCI-H358 cells.
NVP-231 (1 μM; 24-72 hours) induces caspase-3 and caspase-9 cleavage in both cell lines. However, the highest caspase-3 and caspase-9 cleavage and activation occurred at 24 hours in MCF-7 cells, then decreases again. In NCI-H358 cells, caspase-3 and caspase-9 cleavage occurrs continuously over 72 hours.
NVP-231 (0-500 nM; 24 hours) causes a concentration-dependent up-regulation of cyclin B1 phosphorylation at Ser133 and a reduction of CDK1 phosphorylation at Tyr15. The total CDK1 expression also declined upon CerK inhibition
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Graf C, Klumpp M, Habig M, Rovina P, Billich A, Baumruker T, Oberhauser B, Bornancin F. Targeting ceramide metabolism with a potent and specific ceramide kinase inhibitor. Mol Pharmacol. 2008 Oct;74(4):925-32. doi: 10.1124/mol.108.048652. Epub 2008 Jul 8. PubMed PMID: 18612076.RTRCRBT50415^^1/.65&2*1.05**5**2(*
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