[CAS NO. 1251156-08-7] XL388
PRODUCTS SPECIFICATIONS [1251156-08-7]
DESCRIPTION [1251156-08-7]
Overview
| MDL | MFCD24386875 |
|---|---|
| Molecular Weight | 455.50 |
| Molecular Formula | C23H22FN3O4S |
| SMILES | O=C(N1CCOC2=CC=C(C3=CC=C(N)N=C3)C=C2C1)C4=CC=C(S(=O)(C)=O)C(F)=C4C |
3 Publications Citing Use of MCE
Summary
IC50 & Target
|
mTOR 9.9 nM (IC 50 ) |
mTORC1
|
mTORC2
|
DNA-PK 8.831 μM (IC 50 ) |
In Vitro
XL388 (Compound 28) also inhibits DNA-PK with an IC50 of 8.831 μM. XL388 inhibits cellular phosphorylation of mTOR complex 1 (p-p70S6K, pS6, and p-4E-BP1) and mTOR complex 2 (pAKT (S473)) substrates. XL388 acts in an ATP-competitive manner, with a linear increase in IC 50 values with increasing ATP concentration [1] . XL388 shows a dose-dependent effect in promoting MG-63 cell apoptosis. XL388 (100 nM) induces apoptosis in other two OS cell lines (U2OS and SaOs-2), but not in non-cancerous MC3T3-E1 cells. XL388 potently inhibits activation of both mTORC1 and mTORC2 in MG-63 cells. The effect of XL388 on mTORC1/2 activation is again dose-dependent. Further, mTORC1/2 activation is almost blocked in XL388 (100 nM)-treated U2OS cells, SaOs-2 cells and primary human OS cells [2] .
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
To assess the pharmacodynamic effects of XL388 (Compound 28) on the mTOR pathway signaling, athymic nude mice bearing PC-3 prostate tumors are dosed orally at 100 mg/kg of XL388. Rapamycin is also administered intraperitoneally at 5 mg/kg as a reference. Plasma and tumor samples are collected at 1, 4, 8, 16, 24, and 32 h for XL388 and at 4 h for Rapamycin after dosing and homogenized with buffer. Tumor lysates from each animal (n=5) are then pooled for each group and analyzed by immunoblot for levels of phosphorylated p70S6K, S6, 4E-BP1, and AKT. XL388 has moderate terminal elimination half-life (t 1/2 =1.35 h, 0.45 h, 6.11 h and 0.86 h for mouse (10 mg/kg, iv), rat (3 mg/kg, iv), dog (3 mg/kg, iv), monkey (3 mg/kg, iv)) [1] .
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Appearance
Solid
Shipping
Room temperature in continental US; may vary elsewhere.
Storage
| Powder | -20°C | 3 years |
|---|---|---|
| 4°C | 2 years | |
| In solvent | -80°C | 6 months |
| -20°C | 1 month |
Solvent & Solubility
DMSO : 50 mg/mL ( 109.77 mM ; Need ultrasonic)
Stock Solutions
| Concentration Solvent Mass | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 2.1954 mL | 10.9769 mL | 21.9539 mL |
| 5 mM | 0.4391 mL | 2.1954 mL | 4.3908 mL |
| 10 mM | 0.2195 mL | 1.0977 mL | 2.1954 mL |
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1.
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Add each solvent one by one: 10% DMSO >> 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (5.49 mM); Clear solution
References
- [1] Takeuchi CS, et al. Discovery of a novel class of highly potent, selective, ATP-competitive, and orally bioavailable inhibitors of the mammalian target of rapamycin (mTOR). J Med Chem. 2013 Mar 28;56(6):2218-34.
- [2] Zhu YR, et al. The anti-cancer activity of the mTORC1/2 dual inhibitor XL388 in preclinical osteosarcoma models. Oncotarget. 2016 Aug 2;7(31):49527-49538.