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    HS-173
    HS-173

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    This product is for research use only, not for human use. We do not sell to patients.
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    InvivoChem Cat #: V0148
    CAS #: 1276110-06-5Purity ≥98%

    Description: HS-173 is a novel and potent PI3Kα (phosphatidylinositol 3-kinase) inhibitor (IC50 = 0.8 nM) with a potential to be used as an effective therapeutic agent for ameliorating liver fibrosis. HS-173 also has potential anticancer activity by promoting apoptosis and inhibiting angiogenesis. HS-173 blocked the PI3K/Akt signaling pathway in vitro and in vivo. It suppressed fibrotic responses such as cell proliferation and collagen synthesis by blocking PI3K/Akt signaling. HS-173 inhibited the PI3K signaling pathway, and showed anti-proliferative effects on cancer cells. Also, HS-173 induced cell cycle arrest at the G(2)/M phase and apoptosis. In addition, HS-173 decreased the expression HIF-1α and VEGF which play an important role in angiogenesis. This effect was confirmed by the suppression of tube formation and migration assay in vitro.

    References: Cancer Lett. 2013 Jan 1;328(1):152-9; Scientific Reports, 2013, 3, 3470. 

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    Molecular Weight (MW)

    422.46

    Formula

    C21H18N4O4S

    CAS No.

    1276110-06-5

    Storage

    -20℃ for 3 years in powder form

    -80℃ for 2 years in solvent

    Solubility (In vitro)

    DMSO: 84 mg/mL warming (198.8 mM)

    Water:<1 mg/mL

    Ethanol: <1 mg/mL

    Other info

    Synonym: HS173; HS 173; HS-173.

    InChi Key: SEKOTFCHZNXZMM-UHFFFAOYSA-N

    InChi Code: InChI=1S/C21H18N4O4S/c1-2-29-21(26)19-13-23-20-9-8-15(14-25(19)20)16-10-17(12-22-11-16)24-30(27,28)18-6-4-3-5-7-18/h3-14,24H,2H2,1H3

    SMILES Code: O=C(C1=CN=C2C=CC(C3=CC(NS(=O)(C4=CC=CC=C4)=O)=CN=C3)=CN21)OCC

    Chemical Name

    Ethyl 6-(5-(phenylsulfonamido)pyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxylate

     


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    In Vitro

    Kinase Assay: The PI3K assay is performed using the Kinase-Glo Max luminescent kinase assay kit which quantifies the amount of ADP produced by the PI3K reaction. In brief, an active PI3K (100 ng) is preincubated with compound for 5 min in kinase reaction buffer (25 mM MOPS [pH 7.0], 5 mM MgCl2, and 1 mM EGTA) and 10 μg l-α-phosphatidylinositol (PI). Before addition of PI, it is sonicated with sonication buffer (25 mM MOPS [pH 7.0], 1 mM EGTA) in water for 20 min for allowing miscelle formation. Then reaction is started by the addition of 10 μM ATP and ran for 180 min. To terminate kinase reaction, same volume of Kinase-Glo Max buffer is added. After 10 min, the plates are then read on a GloMax plate reader for luminescence detection.

     

    Cell Assay: Cell viability is performed by a MTT assay. Briefly, T47D cells are plated in 96-well plates for 24 h. Then, the medium is removed and cells were treated with either DMSO as a control or various concentrations of inhibitors. The final concentration of DMSO in the medium was ≤0.1% (v/v). After the cells are incubated for 48 h, 20 μL MTT solution (5 mg/mL) is added to each well for another 4 h at 37 °C. The formazan crystals that formed are dissolved in DMSO (100 μL/well) by constant shaking for 5 min. The plate is then read on a microplate reader at 540 nm. Three replicate wells are used for each analysis. The median inhibitory concentration (IC50, defined as the drug concentration at which cell growth is inhibited by 50%) is assessed from the dose−response curves. To assess the effect of compounds on cell proliferation, T47D cells are cultured with compound (0.1−100 μM) for 48 h before MTT analysis.

    HS-173 diminishes blood vessel formation in mice. HS-173 markedly attenuates the development of liver fibrosis by blocking PI3K/Akt signaling in vivo..

    In Vivo

    Combination of Quercetin (75 mg/kg) and 2-Methoxyestradiol enhances inhibition of human prostate cancer LNCaP and PC-3 cells xenograft tumor growth. LD50: >3000mg/kg (i.g.)

    Animal model

    Male BALB/c mice with CCl4-induced liver fibrosis

    Formulation & Dosage

     Dissolved in DMSO, and then mixture (DMSO:PEG400:D.W. = 1:5:4); 20 mg/kg; Oral gavage

    References

    [1] Kim O, et al. J Med Chem. 2011, 54(7), 2455-2466.[2] Son MK, et al. Sci Rep. 2013, 3, 3470.

     


    These protocols are for reference only. InvivoChem does not independently validate these methods.

    HS-173

    Effects of HS-173 on the proliferation of hepatic stellate cells. Sci Rep. 2013, 3, 3470.

    HS-173

    Effect of HS-173 on PI3K/AKT signaling in HSC cells.


    HS-173

    Effect of HS-173 on CCl4-induced liver fibrosis in mice.


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