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Description | Lometrexol (LY 264618), an antipurine Antifolate, can inhibit the activity of glycinamide ribonucleotide formyltransferase (GARFT) but do not induce detectable levels of DNA strand breaks. Lometrexol can further inhibit de novo purine synthesis, causing abnormal cell proliferation and Apoptosis, even cell cycle arrest. Lometrexol has anticancer activity. Lometrexol also is a potent human Serine hydroxymethyltransferase1/2 (hSHMT1/2) inhibitor. |
In vitro | Lometrexol binds tightly to GART, resulting in a rapid and prolonged depletion of intracellular purine ribonucleotides. Lometrexol (1-30 μM; 2-10 hours) induces rapid and complete growth inhibition in L1210 cells. Lometrexol (1 μM; 2-24 hours) induces cell cycle arrest in murine leukemia L1210 cells[3]. |
In vivo | Lometrexol (DDATHF; i.p.; 15-60 mg/kg; on gestation day 7.5) induces neural tube defects (NTDs) by disrupting purine metabolism, increasing embryonic resorption rates, and causing growth retardation in a dose-dependent manner. At 40 mg/kg, it decreases glycinamide ribonucleotide formyl transferase (GARFT) activity and alters ATP, GTP, dATP, and dGTP levels. Additionally, Lometrexol (i.p.; 40 mg/kg; on gestation day 7.5) leads to abnormal cell proliferation and apoptosis in NTDs[1]. |
Alias | LY 264618, DDATHF |
Molecular Weight | 443.45 |
Formula | C21H25N5O6 |
Cas No. | 106400-81-1 |
Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. | |||||||||||||||||||||||||||||||||||
Solubility Information | 5% DMSO+40% PEG300+5% Tween 80+50% Saline: 5 mg/mL, Sonication is recommended. Working solution is recommended to be prepared and used immediately. DMSO: 100 mg/ml (225.50 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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