Pixantrone (BBR 2778) dimaleate is atopoisomeraseIIinhibitor and DNA intercalator, with anti-tumor activity.

Pixantrone (0-10 μM, 72 h) dimaleate induces cell death in multiple cancer cell lines independent of cell cycle perturbation, with IC₅₀s of 37.3 nM, 126 nM and 136 nM for T47D, MCF-10A and OVCAR5 cells, respectively^[1].
Pixantrone (25-500 nM, 2 4 h) dimaleate induces DNA damage at high concentration of 500 nM and induces severe chromosomal aberrations and mitotic catastrophe in PANC1 cells^[1].
Pixantrone (100 nM, 24 h) dimaleate may disrupt chromosome segregation because of generating merotelic kinetochore attachments that cause chromosome non-disjunction^[1].
Pixantrone (0-100 μM, 72 h) dimaleate potently inhibits growth of human leukemia K562 cells, etoposide-resistant K/VP.5 cells, MDCK and ABCB1-transfected MDCK/MDR cells with IC₅₀s of 0.10 μM, 0.56 μM, 0.058 μM and 4.5 μM, respectively^[2].
Pixantrone (0.01-0.2 μM) dimaleate leads to a concentration-dependent formation of linear DNA through acting on topoisomerase Iiα and produces semiquinone free radicals in an enzymatic reducing system, although not in a cellular system, most likely due to low cellular uptake^[2].
Pixantrone (0.01-10 μM) dimaleate shows potent inhibitory activities against rat 97-116 peptide-specific T cell proliferation^[4].

Pixantrone (i.v., 27 mg/kg, every 7 days, three times) dimaleate does not worsen pre-existing moderate degenerative cardiomyopathy, causes minimal cardiotoxic in mice following repeated treatment cycles and results in less mortality than mitoxantrone in doxorubicin-pretreated mice^[3].
Pixantrone (i.v., 16.25 mg/kg, every week, three times) dimaleate modulates Lymph node cells (LNC) responses, affacts T cell subpopulations in TAChR-immunized Lewis rats and also shows preventive and therapeutic effect in experimental autoimmune myasthenia gravis (EAMG) rats^[4].

557.51

Solid

C₂₅H₂₇N₅O₁₀

144675-97-8

马来酸匹衫琼

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

DMSO : 33.33 mg/mL(59.78 mM;Need ultrasonic)

H₂O : 5 mg/mL(8.97 mM;ultrasonic and warming and heat to 80℃)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80℃, 6 months; -20℃, 1 month (sealed storage, away from moisture)。-80℃ 储存时，请在 6 个月内使用，-20℃ 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： PBS

  Solubility: 50 mg/mL (89.68 mM); Clear solution; Need ultrasonic
• 2.

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

  Solubility: ≥ 0.83 mg/mL (1.49 mM); Clear solution

  此方案可获得 ≥ 0.83 mg/mL (1.49 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 8.3 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
• 3.

  请依序添加每种溶剂： 10% DMSO    90% (20%SBE-β-CDin saline)

  Solubility: ≥ 0.83 mg/mL (1.49 mM); Clear solution

  此方案可获得 ≥ 0.83 mg/mL (1.49 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明