1. Metabolic Enzyme/Protease
    NF-κB
    Cell Cycle/DNA Damage
  2. Phosphatase
    IKK
    PPAR
  3. Ertiprotafib

Ertiprotafib (Synonyms: PTP 112)

Cat. No.: HY-19383
Handling Instructions

Ertiprotafib is an inhibitor of PTP1B, IkB kinase β (IKK-β), and a dual PPARα and PPARβ agonist, with an IC50 of 1.6 μM for PTP1B, 400 nM for IKK-β, an EC50 of ~1 μM for PPARα/PPARβ.

For research use only. We do not sell to patients.

Ertiprotafib Chemical Structure

Ertiprotafib Chemical Structure

CAS No. : 251303-04-5

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Description

Ertiprotafib is an inhibitor of PTP1B, IkB kinase β (IKK-β), and a dual PPARα and PPARβ agonist, with an IC50 of 1.6 μM for PTP1B, 400 nM for IKK-β, an EC50 of ~1 μM for PPARα/PPARβ.

IC50 & Target[1][2]

PTP1B

1.6 μM (IC50)

IKK-β

400 nM (IC50)

PPARα

~1 μM (EC50)

PPARβ

~1 μM (EC50)

In Vitro

Ertiprotafib is a potent inhibitor of IKK-β, with an IC50 value of 400±40 nM, which is much lower than that required for the half-maximal inhibition of the p-nitrophenyl phosphatase activity of PTP1B. The reported IC50 value of Ertiprotafib against PTP1B ranges from 1.6 to 29 μM depending on the assay conditions[2]. Ertiprotafib is at least a dual PPARα and PPARβ agonist with EC50 values for transactivation of 1 μM. Such activities readily explain the observations with suprapharmacologic doses of these[1].

In Vivo

As seen with treatment of ob/ob mice, both Ertiprotafib and compound 3 seem to significantly improve glucose metabolism in rats. At 25 mg/kg/day, these compounds decrease both fasting blood glucose and insulin levels compared with vehicle treated rats. Furthermore, both Ertiprotafib and compound 3 increase glucose disposal after an oral challenge. It is noteworthy that lipid levels are also reduced in treated animals. Both triglyceride and free fatty acid levels are substantially reduced in rats treated with 25 mg/kg/day of either compound. To summarize, both Ertiprotafib and compound 3 seem to be robust agents in improving glucose utilization in fa/fa rats while also decreasing lipid levels in these animals. Decreased lipid levels may be unexpected for a pure PTP1b inhibitor. It is more telling, as mentioned above, that rats treated with suprapharmacologic doses of Ertiprotafib show signs of PPAR family activation[2].

Molecular Weight

559.51

Formula

C₃₁H₂₇BrO₃S

CAS No.

251303-04-5

SMILES

OC([[email protected]@H](CC1=CC=CC=C1)OC2=C(C)C=C(C3=C(C(C)=C(C)S4)C4=C(Br)C5=CC=CC=C53)C=C2C)=O

Shipping

Room temperature in continental US; may vary elsewhere

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

References
Animal Administration
[2]

Mice, Rats[2]
Male Ob/ob mice and Zucker fa/fa rats are used. They are kept on a 12-h/12-h light/dark cycle and fed Rodent Diet 5001 (for mice and rats) from Purina Mills. Compounds are dosed orally by gavage in an aqueous suspension of 2% Tween 80 and 0.5% methylcellulose. Whole blood (5 μL) is used for glucose readings via tail nick for measurement using the Ascensia Elite XL glucometer and glucose strips by preloading a strip into the meter and touching the end to a small drop of blood on each tail. Insulin levels are quantified by enzyme-linked immunosorbent assay[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
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Ertiprotafib
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