1. Neuronal Signaling
    Stem Cell/Wnt
  2. γ-secretase
    Notch
  3. Avagacestat

Avagacestat (Synonyms: BMS-708163)

Cat. No.: HY-50845 Purity: 99.93%
Handling Instructions

Avagacestat (BMS-708163) is a potent inhibitor of γ-secretase, with IC50s of 0.27 nM and 0.30 nM for Aβ42 and Aβ40 inhibition; Avagacestat (BMS-708163) also inhibits NICD (Notch IntraCellular Domain) with IC50 of 0.84 nM and shows weak inhibition of CYP2C19, with IC50 of 20 μM.

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

Avagacestat Chemical Structure

Avagacestat Chemical Structure

CAS No. : 1146699-66-2

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 174 In-stock
Estimated Time of Arrival: December 31
5 mg USD 152 In-stock
Estimated Time of Arrival: December 31
10 mg USD 288 In-stock
Estimated Time of Arrival: December 31
50 mg USD 874 In-stock
Estimated Time of Arrival: December 31
100 mg   Get quote  
200 mg   Get quote  

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Description

Avagacestat (BMS-708163) is a potent inhibitor of γ-secretase, with IC50s of 0.27 nM and 0.30 nM for Aβ42 and Aβ40 inhibition; Avagacestat (BMS-708163) also inhibits NICD (Notch IntraCellular Domain) with IC50 of 0.84 nM and shows weak inhibition of CYP2C19, with IC50 of 20 μM.

IC50 & Target

IC50: 0.27 nM (γ-secretase, Aβ42), 0.30 nM (γ-secretase, Aβ40), 20 μM (CYP2C19)[1], 0.84 nM (NICD)[2]

In Vitro

Avagacestat (BMS-708163) exhibits weaker potency for inhibition of Notch processing, IC50=58±23 nM, as compared to its inhibition potency for APP cleavage[1]. Avagacestat (BMS-708163) (10 µM) combined with gefitinib significantly attenuates the colony growth of PC9/AB2 cells, increases the expression of active caspase 3 and PARP and reduces the expression of Ki-67 in PC9/AB2 cells. Avagacestat (BMS-708163) induces apoptosis and enhances cell cycle arrest at the G1 phase in PC9/AB2 cells. Avagacestat (BMS-708163) treatment effectively downregulates the expression of Notch1, HES1, PI3K and Akt in PC9/AB2 cells[3].

In Vivo

Avagacestat (BMS-708163) significantly reduces both plasma and brain Aβ40 levels relative to control at 10 and 100 mg/kg for the entire dosing interval, demonstrates significant Aβ40 lowering for 8 h after an oral dose of 1 mg/kg, and significantly lowers CSF Aβ40 levels in rats, when measured 5 h after single oral doses ranging from 3 to 100 mg/kg[1]. Avagacestat (BMS-708163) (10 mg/kg) monotherapy has a minor inhibitory effect on PC9/AB2 tumor growth compared with gefitinib alone. BMS-708163 monotherapy results in a slight increase in caspase 3 expression as well as a mild decrease in Ki-67 expression in vivo. In the xenograft lung cancer samples treated with Avagacestat (BMS-708163) plus gefitinib, there are a marked increase in caspase 3 expression and a reduction in Ki-67 staining[3].

Clinical Trial
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (191.98 mM)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.9198 mL 9.5990 mL 19.1979 mL
5 mM 0.3840 mL 1.9198 mL 3.8396 mL
10 mM 0.1920 mL 0.9599 mL 1.9198 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 3 mg/mL (5.76 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 3 mg/mL (5.76 mM); Clear solution

References
Cell Assay
[3]

The cell viability is assessed using a tetrazolium salt (WST-8)-based colorimetric assay from the Cell Counting Kit 8 (CCK-8). The cells are seeded into 96-well plates at an initial density of 5×103 cells/well and cultured for 24 h, after which the cells are cultured with DMSO, increased concentrations of gefitinib or Avagacestat (BMS-708163) , BIBW2992, or the combination of Avagacestat (BMS-708163) and BIBW2992 for an additional 48 h. The A450 is measured in a microplate reader after 10 µL of CCK-8 solution is added and incubated for 1 h. The percentage of growth is shown relative to untreated controls.

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

Animal Administration
[3]

Four- to six-week-old female Balb/c athymic (nu + /nu +) mice are anesthetized with ether. The mice are acclimatized for one week before being injected with 1.5×106 PC9/AB2 cells that have been resuspended in 200 μL of matrigel. When established tumors of approximately 150-300 mm3 in diameter are detected, the mice are randomly divided into groups and fed orally by gavage with either vehicle (1% methylcellulose, 0.2% Tween 80 in sterilized water), gefitinib (3 mg/kg diluted in vehicle), Avagacestat (BMS-708163) (10 mg/kg diluted in vehicle), or a combination of gefitinib (3 mg/kg) and Avagacestat (BMS-708163) (10 mg/kg) for 5 days/week. Each treatment group consists of eight mice. The tumor volume are measured and calculated every five days using the following formula: π/6×(larger diameter)×(smaller diameter)2. After 30 days, mice are killed by cervical dislocation.

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

References
Molecular Weight

520.89

Formula

C₂₀H₁₇ClF₄N₄O₄S

CAS No.

1146699-66-2

SMILES

O=S(N([[email protected]@H](C(N)=O)CCC(F)(F)F)CC1=CC=C(C2=NOC=N2)C=C1F)(C3=CC=C(Cl)C=C3)=O

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Shipping

Room temperature in continental US; may vary elsewhere

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Cat. No.: HY-50845