ATM-3507

The 4 melanoma cell lines CHLA-20, CHLA-90, SK-N-BE(2) and CHP-134 are cultured at 37°C in a humidified incubator at 5% CO₂ and supplemented 100 U/mL penicillin and 100 mg/mL streptomycin. Cells are plated in 96-well plates at 2000-4000 cells per well, incubated at 37°C overnight and then treated with various concentrations of TR100/ATM-3507 (0.1-2.5 μM) alone, TR100 and ATM-3507 plus various chemotherapy drugs. The cell viability is performed on day 3-5. For the dosing schedule optimization experiment, TR100 or Vincristine is added at day 1 with the other being added at day 2 or both TR100 and Vincristine are added on day 1 and plates are read at day 5. Results are presented as percentage of survival cells compared with controls. All cell viability assays are run in quadruplicate and the data shown are representative of at least 2 independent experiments^[1].

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

Mice^[1]
Female athymic nude mice (age 4-6 weeks) are used. Mice are subcutaneously injected with 5.0×10⁶ CHLA-20 cells in a 150 mL mix of PBS and Matrigel (2:1). ATM-3507 and TR100 are formulated at 15 mg/mL in 30% sulfobutyl-ether-b-cyclodextrin sodium salt (SBECD). Vincristine is dissolved in H₂O at 0.125 mg/kg. When the tumors reached volumes of 200-400 mm³, mice are randomized into the study groups. Animals are followed until the animal reached endpoint criteria. Tumor size is measured using digital calipers twice per week and tumor volume is calculated. Mice are also weighed and observed twice per week for signs of endpoint condition. Mice that demonstrate signs of toxicity or reach endpoint criteria are humanely euthanized by CO₂ as phyxiation and subjected to cervical dislocation as the secondary method of euthanasia^[1].

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