MK-886 (L 663536) is a potent, cell-permeable and orally active FLAP (IC₅₀ of 30 nM) and leukotriene biosynthesis (IC₅₀s of 3 nM and 1.1 μM in intact leukocytes and human whole blood, respectively) inhibitor. MK-886 is also a non-competitive PPARα antagonist and can induce apoptosis^[1][2][3].

IC50: 30 nM (FLAP)^[3]
IC50: 3 nM (Leukotriene biosynthesis in intact leukocytes) and 1.1 μM (Leukotriene biosynthesis in human whole blood)^[2]
PPARα^[1]

MK-886 (0.5-2 µM; 15 hours; primary keratinocytes) treatment reduces keratin-1 expression in a culture of mouse primary keratinocytes^[1].
Using a transient transfection system in monkey kidney fibroblast CV-1 cells, mouse keratinocyte 308 cells and human lung adenocarcinoma A549 cells, 10 µM MK-886 is able to inhibit Wy-14643 activation of PPARα by ~80%. MK-886 also decreases PPARα activation by fatty acids in the stable transfection system^[1].
Although Jurkat cells express all PPAR isoforms, various PPARα and PPARγ agonists are unable to prevent MK-886-induced apoptosis^[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.

MK-886 (L 663536; 5 mg/kg; oral administration; male Sprague-Dawley rats) treatment potently inhibits the antigen-induced dyspnea in inbred rats pretreated with methysergide^[2].
MK-886 (L 663536) inhibits leukotriene biosynthesis in vivo in a rat pleurisy model (ED₅₀, 0.2 mg/kg p.o.), an inflamed rat paw model (ED₅₀, 0.8 mg/kg), a model of leukotriene excretion in rat bile following antigen provocation^[2].

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.

472.08

C₂₇H₃₄ClNO₂S

118414-82-7

Room temperature in continental US; may vary elsewhere.

DMSO : 75 mg/mL (158.87 mM; Need ultrasonic)

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。-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： 0.5% CMC-Na/saline water

  Solubility: 10 mg/mL (21.18 mM); Suspended solution; Need ultrasonic
• 2.

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

  Solubility: 2.5 mg/mL (5.30 mM); Suspended solution; Need ultrasonic

  此方案可获得 2.5 mg/mL (5.30 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。

  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 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
• 3.

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

  Solubility: 2.08 mg/mL (4.41 mM); Clear solution; Need ultrasonic

  此方案可获得 2.08 mg/mL (4.41 mM) 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

• 4.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.08 mg/mL (4.41 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (4.41 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 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. [1] Kehrer JP et al. Inhibition of peroxisome-proliferator-activated receptor (PPAR)alpha by MK886. Biochem J. 2001 Jun 15.

  [2]. [2] Gillard J et al. L-663,536 (MK-886) (3-[1-(4-chlorobenzyl)-3-t-butyl-thio-5-isopropylindol-2-yl]-2,2 – dimethylpropanoic acid), a novel, orally active leukotriene biosynthesis inhibitor. Can J Physiol Pharmacol. 1989 May;67(5):456-64.

  [3]. Mancini JA, et al. 5-Lipoxygenase-activating protein is the target of a novel hybrid of two classes of leukotriene biosynthesis inhibitors. Mol Pharmacol. 1992 Feb;41(2):267-72.