S5696
SKI II
≥98% (HPLC), solid
Synonym(s):
4-[[4-(4-Chlorophenyl)-2-thiazolyl]amino]phenol
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About This Item
Empirical Formula (Hill Notation):
C15H11ClN2OS
CAS Number:
Molecular Weight:
302.78
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77
Recommended Products
Quality Level
Assay
≥98% (HPLC)
form
solid
storage condition
protect from light
color
off-white
solubility
DMSO: ≥20 mg/mL
storage temp.
2-8°C
SMILES string
Oc1ccc(Nc2nc(cs2)-c3ccc(Cl)cc3)cc1
InChI
1S/C15H11ClN2OS/c16-11-3-1-10(2-4-11)14-9-20-15(18-14)17-12-5-7-13(19)8-6-12/h1-9,19H,(H,17,18)
InChI key
ZFGXZJKLOFCECI-UHFFFAOYSA-N
Application
Human cisplatin-resistant gastric cancer cell line was treated with SKI-II to study the mechanism of reversion of multidrug resistance.1
SKI II has been used to study the regulatory mechanism and signaling pathway induced by SKI II in inhibiting tumor growth.
Biochem/physiol Actions
Sphingosine kinase (SK) plays a pivotal role in regulating tumor growth and SK can act as an oncogene. Expression of SK RNA is significantly elevated in a variety of solid tumors, compared with normal tissue from the same patient. A number of novel inhibitors of human SK were identified, and several representative compounds were characterized in detail. These compounds demonstrated activity at sub- to micromolar concentrations, making them more potent than any other reported SK inhibitor, and were selective toward SK compared with a panel of human lipid and protein kinases. Kinetic studies revealed that the compounds were not competitive inhibitors of the ATP-binding site of SK. 4-[4-(4-chloro-phenyl)-thiazol-2-ylamino]-phenol (SKI-II) inhibitor is orally bioavailable, detected in the blood for at least 8 h, and showed a significant inhibition of tumor growth in mice with IC50 = 0.5 μM; SKI II does not act at ATP-binding site. Displays no inhibition of ERK2, PI 3-kinase, or PKCa at concentrations up to 60 μM.SKI II induces apoptosis and inhibits proliferation in several other tumor cell lines in vitro (IC50 = 0.9-4.6 μM).
Features and Benefits
This compound is a featured product for Kinase Phosphatase Biology research. Click here to discover more featured Kinase Phosphatase Biology products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
Other Notes
Product is air and light sensitive
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Antimalarial drugs trigger lysosome-mediated cell death in chronic lymphocytic leukemia (CLL) cells.
Subhadip Das et al.
Leukemia research, 70, 79-86 (2018-06-15)
Lysosomes are the most acidic vesicles within mammalian cells and are promising targets for the treatment of breast cancer, glioblastomas and acute myeloid leukemia (AML). Our previous studies have shown that chronic lymphocytic leukemia (CLL) cells are also sensitive to
Bo Kyung A Seong et al.
Cancer research, 77(3), 696-706 (2016-12-03)
Metastatic relapse is the major cause of death in pediatric neuroblastoma, where there remains a lack of therapies to target this stage of disease. To understand the molecular mechanisms mediating neuroblastoma metastasis, we developed a mouse model using intracardiac injection
SphK1 inhibitor SKI II inhibits the proliferation of human hepatoma HepG2 cells via the Wnt5A/beta-catenin signaling pathway
Liu H, et al.
Life Sciences, 151, 23-29 (2016)
Zu-An Zhu et al.
Asian Pacific journal of cancer prevention : APJCP, 13(2), 625-631 (2012-04-25)
In order to investigate whether SKI-II could reverse drug resistance and its possible mechanisms, we treated SGC7901/DDP cells with SKI-II or SKI-II in combination with DDP. Then cell growth, apoptosis, micro- morphological changes, and expression of SphK1, P-gp, NF-kB, Bcl-2
Jingjing Ge et al.
Scientific reports, 6, 22141-22141 (2016-02-26)
RNA-binding protein HuR mediates transforming growth factor (TGF)-β1-induced profibrogenic actions. Up-regulation of Sphingosine kinase 1 (SphK1) is involved in TGF-β1-induced activation of hepatic stellate cells (HSCs) in liver fibrogenesis. However, the molecular mechanism of TGF-β1 regulates SphK1 remains unclear. This
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