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5.32384

Sigma-Aldrich

PI3K Inhibitor, HS-173

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Synonym(s):
PI3K Inhibitor, HS-173, PI3Kα Inhibitor, Phosphatidylinositol 3-kinase α Inhibitor
Empirical Formula (Hill Notation):
C21H18N4O4S
CAS Number:
Molecular Weight:
422.46
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥96% (HPLC)

Quality Level

form

powder

potency

800 pM IC50

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

light beige

solubility

DMSO: 50 mg/mL

storage temp.

−20°C

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

InChI key

SEKOTFCHZNXZMM-UHFFFAOYSA-N

General description

A cell permeable imidazopyridine-carboxylate derived compound that acts as a potent and selective inhibitor of phosphatidylinositol 3-kinase a (PI3Ka; IC50 = 800 pM). Blocks the proliferation of several cancer cells (IC50 = 600 nM; 1.5 µM, and 7.8 µM for T47D, SK-BR3, and MCF-7 cells, respectively). Suppresses the growth and proliferation of hepatic stellate cells (HSC-T6 and LX-2 cells) and induces cell cycle arrest at G2/M phase in a dose and time-dependent manner. Induces apoptosis in HSC-T6 cells (~5 µM) as evidenced by morphological changes, activation of caspase-3, reduction in Bcl-2 levels, and loss of mitochondrial transmembrane potential. Exhibits anti-fibrolytic activity and diminishes the expression of profibrotic mediators, such as fibronectin and vimentin (~ 1 µM) and weakens the severity of hepatic damage in a murine model of carbon tetrachloride-induced fibrosis and reduces the phosphorylation of Akt and p70S6 kinase (10 mg/kg, p.o., 6d/week for 1 month).
A cell permeable imidazopyridine-carboxylate derived compound that acts as a potent and selective inhibitor of phosphatidylinositol 3-kinase a (PI3Ka; IC50 = 800 pM). Blocks the proliferation of several cancer cells (IC50 = 600 nM; 1.5 µM, and 7.8 µM for T47D, SK-BR3, and MCF-7 cells, respectively). Suppresses the growth and proliferation of hepatic stellate cells (HSC-T6 and LX-2 cells) and induces cell cycle arrest at G2/M phase in a dose and time-dependent manner. Induces apoptosis in HSC-T6 cells (~5 µM) as evidenced by morphological changes, activation of caspase-3, reduction in Bcl-2 levels, and loss of mitochondrial transmembrane potential. Exhibits anti-fibrolytic activity and diminishes the expression of profibrotic mediators, such as fibronectin and vimentin (~ 1 µM) and weakens the severity of hepatic damage in a murine model of carbon tetrachloride-induced fibrosis and reduces the phosphorylation of Akt and p70S6 kinase (10 mg/kg, p.o., 6d/week for 1 month).

Please note that the molecular weight for this compound is batch-specific due to variable water content.
PI3 K alpha inhibitor; anti-fibrolytic agent; HS-173

Biochem/physiol Actions

Cell permeable: yes
Primary Target
PI3Ka

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Son, M.K., et al. 2013. Sci. Rep.3, 3470.

Lee, H., et al. 2013. Onc. Rep.30, 863.
Kim, O., et al. 2011. J. Med. Chem.54, 2455.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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