Nifurtimox, an antiprotozoal agent, which is generally used for the treatment of infections with Trypanosoma cruzi, has been used in the therapy of neuroblastoma. Nifurtimox affects enzyme activity of lactate dehydrogenase (LDH).

Trypanosoma cruzi^[1]
Lactate dehydrogenase (LDH) ^[1]

Nifurtimox affects enzyme activity of lactate dehydrogenase (LDH). To differentiate if this effect is a result of a reduced LDH activity or a shift in pyruvate metabolism due to activation of PDH, the enzyme activity of LDH is determined after 4 h treatment with 50 µg/mL Nifurtimox. Compared to the untreated control, the LDH activity is significantly reduced for LA-N-1 (P=0.005), IMR-32 (P=0.009), LS (P=0.0035) and SK-N-SH (P=0.0065). Nifurtimox reduces cell viability and induces cell cycle arrest and apoptosis in neuroblastoma cells. To characterize the cytotoxic impacts of Nifurtimox on neuroblastoma, 4 cell lines are subjected to several experiments. Cell viability is reduced for all 4 neuroblastoma cell lines after 24 h incubation with 50 µg/mL to an average of 66%, 63%, 62% and 75% (LA-N-1, IMR-32 LS and SK-N-SH, respectively). The reduction is significant compared to the untreated control (P<0.01) and the vehicle control with DMSO (P<0.05) for all cell lines^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

287.30

C₁₀H₁₃N₃O₅S

23256-30-6

硝呋替莫

Room temperature in continental US; may vary elsewhere.

DMSO : 150 mg/mL (522.10 mM; Need ultrasonic)

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• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (8.70 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.70 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• [1]. Cabanillas Stanchi KM, et al. Nifurtimox reduces N-Myc expression and aerobic glycolysis in neuroblastoma. Cancer Biol Ther. 2015;16(9):1353-63.

The Neuroblastoma cell lines IMR-32, LA-N-1 and SK-N-SH and the neuroblastoma cell line LS are grown in RPMI-1640 medium supplemented with 10% (v/v) fetal calf serum (FCS), 2 mM L-glutamine, 100 U/mL Penicillin and 100 µg/mL Streptomycin and incubated at 37°C, 5% CO₂ and saturated humidity. To assess the cell viability after incubation with Nifurtimox at different concentrations (10 µg/mL up to 50 µg/mL or 34.8 µM to 174 µM, respectively in the supernatant growth medium) or the vehicle control with according concentrations, all neuroblastoma cell lines are subjected to an MTS assay. Stock solutions of MTS are made at 480 µM in sterile filtered deionized water and stored at -20°C. Cells are grown to approximately 50% confluency, treated with Nifurtimox, and incubated for 1 h with fresh media containing 12 µM MTS^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Cabanillas Stanchi KM, et al. Nifurtimox reduces N-Myc expression and aerobic glycolysis in neuroblastoma. Cancer Biol Ther. 2015;16(9):1353-63.