Suramin sodium salt (Suramin hexasodium salt) is a reversible and competitive protein-tyrosine phosphatases (PTPases) inhibitor^[1]. Suramin sodium salt is a potent inhibitor of sirtuins: SirT1 (IC₅₀=297 nM), SirT2 (IC₅₀=1.15 μM), and SirT5 (IC₅₀=22 μM)^[2]. Suramin sodium salt is a competitive inhibitor of reverse transcriptase (DNA topoisomerase II: IC₅₀=5 μM)^[3][4]. Suramin sodium salt is a potent SARS-CoV-2 RNA-dependent RNA polymerase (RdRp) inhibitor^[5]. Suramin sodium salt efficiently inhibits IP5K and is an antiparasitic, anti-neoplastic and anti-angiogenic agent^[6][7][8].

Suramin sodium salt (Suramin hexasodium salt; 50-600 μg/mL; for 24-96 hours) inhibits cells proliferation in a dose-dependent and time-dependent manner and decreases viability in cancer cells^[7].
Suramin sodium salt (300 μg/mL; for 48 hours) induces cells apoptosis and down-regulates mRNA expression in HeLa cells^[7].
Suramin sodium salt (1 mg/mL; 1 hour) significantly suppresses the phosphorylated ERK1/2^[8].
The IC₅₀ values of HO-8910 PM and HeLa are 319 μg/mL, 476 μg/mL, respectively^[7].
Suramin blocks viral replication in Vero E6 cells^[5].

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.

Suramin sodium salt (Suramin hexasodium salt; 10 mg/kg; IV; twice weekly for 3 weeks) reverses established pulmonary hypertension (PH), thereby normalizing the pulmonary artery pressure values and vessel structure^[8].

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.

1429.17

C₅₁H₃₄N₆Na₆O₂₃S₆

129-46-4

苏拉明钠

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

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

H₂O : ≥ 200 mg/mL (139.94 mM)

DMSO : 125 mg/mL (87.46 mM; Need ultrasonic)

* “≥” means soluble, but saturation unknown.

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°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C 储存时，请在 6 个月内使用，-20°C 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: 100 mg/mL (69.97 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: ≥ 2.08 mg/mL (1.46 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (1.46 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 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-CD in saline)

  Solubility: ≥ 2.08 mg/mL (1.46 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (1.46 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 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

• [1]. Zhang YL, et al. Suramin is an active site-directed, reversible, and tight-binding inhibitor of protein-tyrosine phosphatases. J Biol Chem. 1998 May 15;273(20):12281-7.

  [2]. Trapp J, et al. Structure-activity studies on suramin analogues as inhibitors of NAD+-dependent histone deacetylases (sirtuins). ChemMedChem. 2007 Oct;2(10):1419-31.

  [3]. Schuetz A, et al. Structural basis of inhibition of the human NAD⁺-dependent deacetylase SIRT5 by suramin. Structure. 2007 Mar;15(3):377-89.

  [4]. De Clercq E, et al. Suramin: a potent inhibitor of the reverse transcriptase of RNA tumor viruses. Cancer Lett. 1979 Nov;8(1):9-22.

  [5]. Wanchao Yin, et al. Structural basis for inhibition of the SARS-CoV-2 RNA polymerase by suramin. Nat Struct Mol Biol. 2021 Mar;28(3):319-325.

  [6]. Jindal HK, et al. Suramin affects DNA synthesis in HeLa cells by inhibition of DNA polymerases. Cancer Res. 1990 Dec 15;50(24):7754-7.

  [7]. Novaes RD, et al. Purinergic Antagonist Suramin Aggravates Myocarditis and Increases Mortality by EnhancingParasitism, Inflammation, and Reactive Tissue Damage in Trypanosoma cruzi-Infected Mice. Oxid Med Cell Longev. 2018 Sep 30;2018:7385639.

  [8]. Izikki M, et al. The beneficial effect of suramin on monocrotaline-induced pulmonary hypertension in rats. PLoS One. 2013 Oct 15;8(10):e77073.

  [9]. Xiaozhe Zhang, et al. Suramin and NF449 Are IP5K Inhibitors That Disrupt IP6-mediated Regulation of Cullin RING Ligase and Sensitize Cancer Cells to MLN4924/pevonedistat. J Biol Chem. 2020 Jun 3;jbc.RA120.014375.

  [10]. Xiaozhe Zhang, et al. Suramin and NF449 Are IP5K Inhibitors That Disrupt IP6-mediated Regulation of Cullin RING Ligase and Sensitize Cancer Cells to MLN4924/pevonedistat. J Biol Chem. 2020 Jun 3;jbc.RA120.014375.