Molecular Weight(MW): 610.59
SH-4-54 is a potent STAT inhibitor with KD of 300 nM and 464 nM for STAT3 and STAT5, respectively.
Cited by 6 Publications
4 Customer Reviews
Expression of indicated proteins in PRL-stimulated INS-1 cells without (control, white bars) or with (black bars) STAT inhibitor (SH-4-54).
Diabetologia, 2015, 58: 2064–2073. SH-4-54 purchased from Selleck.
After cells exposed to 20 μM SH-4-54 for 24 hr, (a) Western blot analysis was conducted to determine protein expression of p-Stat5 at Tyr694, Stat5, Akt1, Akt2, and Akt, and (b) RT-PCR was performed to determine mRNA expression of Akt1/2. After cells transfected with si-Stat5/si-NC.
Sci Rep, 2016, 6:33358.. SH-4-54 purchased from Selleck.
Pancreatic acini exposed for 1 h to 300 μM of oleic acid (OA) or linoleic acid (LA) were pre-treated for 45 min with the vehicle (DMSO), JSH-23 (30 μM) or SH-4-54 (10 μM). CCL2 mRNA expression was analyzed by qRT-PCR with 18S as internal standard. *p<0.05, **p<0.01 as compared with untreated acini, ♦♦p<0.01 as compared with OA- or LA-treated acini.
Biochim Biophys Acta, 2015, 1852(12):2671-7. SH-4-54 purchased from Selleck.
Influence of small molecule inhibitors on IFN-g production in MAIT cells. (A to F) Representative flow plots showing IFN-g production in MAIT cells stimulated with Mtb lysates/IL-15, in the presence of DMSO alone (A), JNK1/2/3 inhibitor SP600125 (B), NFkB inhibitor BAY11-7802 (C), p38 MAPK inhibitor SB203580 (D), PI3 Kinase p100a/d/b inhibitor LY294002 (E), or STAT3/STAT5 inhibitor SH-4-54 (F). (G) Comparison of inhibition effect on IFN-g production in MAIT cells in the presence of DMSO (solvent for small molecule inhibitors), or different small molecule inhibitors (nZ6). In the figure, error bars indicate SEM. Paired t-test was used for statistical analysis between groups.
J Infect, 2016, 72(3):338-52.. SH-4-54 purchased from Selleck.
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2. For more details, such as half maximal inhibitory concentrations (IC50s) and working concentrations of each inhibitor, please click on the link of the inhibitor of interest.
3. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
4. Orange "√" refers to compounds which do inhibitory effects on the related isoform, but without specific value.
|Description||SH-4-54 is a potent STAT inhibitor with KD of 300 nM and 464 nM for STAT3 and STAT5, respectively.|
SH-4-54 shows unprecedented cytotoxicity in human glioblastoma brain cancer stem cells (BTSCs), while has no toxicity in human fetal astrocytes. In addition, SH-4-54 effectively suppresses STAT3 phosphorylation and its downstream transcriptional targets. 
|In vivo||In mice orthotopically xenografted with BT73, SH-4-54 (10 mg/kg i.p.) exhibits BBB permeability, potently suppresses glioma tumor growth, and inhibits pSTAT3. |
Surface Plasmon Resonance (SPR) studies:The binding experiments are carried out on a ProteOn XPR36 biosensor at 25°C using the HTE sensor chip. The flow cells of the sensor chip are loaded with a nickel solution at 30 μL/min for 120 s to saturate the Tris–NTA surface with Ni(II) ions. Purified His-tagged STAT3 and STAT5 in PBST buffer (PBS with 0.005% (v/v) Tween-20 and 0.001% DMSO pH 7.4) is injected in the first and second channels of the chip respectively in the vertical direction at a flow rate of 25 μg/μL for 300 s, which attained, on average, ~8000 resonance unit (RU). After a wash with PBST buffer, inhibitors binding to the immobilized proteins is monitored by injecting a range of concentrations along with a blank at a flow rate of 100 μL/min for 200 s for each of these small molecules. When the injection of the small molecule inhibitor is completed, running buffer is allowed to flow over the immobilized substrates for the non-specifically bound inhibitors to dissociate for 600 s. Following dissociation of the inhibitors, the chip surface is regenerated with an injection of 1 M NaCl at a flow rate of 100 μL/ml for 18 s. Interspot channel reference is used for non-specific binding corrections and the blank channel used with each analyte injection served as a double reference to correct for possible baseline drift. Data are analyzed using ProteOn Manager Software version 3.1. The Langmuir 1:1 binding model was used to determine the KD values.
|In vitro||DMSO||100 mg/mL (163.77 mM)|
|Ethanol||50 mg/mL warmed (81.88 mM)|
* 1 mg/ml means slightly soluble or insoluble.
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