Nimesulide is a selectiveCOX-2inhibitor, withIC₅₀s of 70 nM-70 μM in a time-dependent manner, but it shows no effect onCOX-1(IC₅₀>100 μM). Nimesulide has potent anti-inflammatory, analgesic and antipyretic properties.

Nimesulide is a selective COX-2 inhibitor, with IC₅₀s of 70 nM-70 μM in a time-dependent manner, but it shows weak effect on COX-1 (IC₅₀>100 μM)^[1]. Nimesulide (10 μM) effectively decreases VEGF in endometrium cancer cells, and shows no effect on that in normal cells. Nimesulide (10 and 50 μM) dramatically decreases MCP-1 levels in normal cell, and such an effect is also observed with 10 μM in cancer cells. In addition, Nimesulide (50 μM) potently affects IL-8 level in normal cells, but causes no changes in cancer cells^[3].

Nimesulide (3 and 10 mg/kg, i.p.) effectively blocks fever induced by i.p. injection of LPS in rats. Nimesulide (3 mg/kg, i.p.) potently reduces fever response induced by IL-1β, IL-6 or TNF-α, but does not prevent the initial rise in the febrile response induced by arachidonic acid. Nimesulide also significantly reduces PGE2 levels and PGF2α levels in the cerebrospinal fluid of the LPS-stimulated animals, and inhibits the increase in plasma TNF-α by 97%^[2].

308.31

Solid

C₁₃H₁₂N₂O₅S

51803-78-2

尼美舒利

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 100 mg/mL(324.35 mM)

H₂O :< 0.1 mg/mL(insoluble)

*"≥" 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℃, 6 months; -20℃, 1 month。-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： 10% DMSO    40%PEG300   5%Tween-80   45% saline

  Solubility: ≥ 2.5 mg/mL (8.11 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.11 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
• 2.

  请依序添加每种溶剂： 10% DMSO    90%corn oil

  Solubility: ≥ 2.5 mg/mL (8.11 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.11 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。