MK-886

Catalog No.S8236 Batch:S823601

Technical Data

Formula	C₂₇H₃₄ClNO₂S
Molecular Weight	472.08	CAS No.	118414-82-7
Solubility (25°C)*	In vitro	DMSO	94 mg/mL (199.11 mM)
		Water	Insoluble
		Ethanol	Insoluble
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description

MK-886 is an inhibitor of leukotriene biosynthesis, inhibiting 5-lipoxygenase-activating protein (FLAP). It is also a moderately potent PPARα antagonist.

Targets

5-lipoxygenase-activating protein (FLAP) ^[1]	PPARα ^[3]	COX-1 ^[1]	COX-2 ^[1]
		8 μM	58 μM

In vitro

MK-886, an inhibitor of the 5-lipoxygenase-activating protein (FLAP), potently suppresses leukotriene biosynthesis in intact cells and is frequently used to define a role of the 5-lipoxygenase (EC 1.13.11.34) pathway in cellular or animal models of inflammation, allergy, cancer, and cardiovascular disease. MK-886 inhibits isolated COX-1 (IC50=8 μM) and blocks the formation of the COX-1-derived products 12(S)-hydroxy-5-cis-8,10-trans-heptadecatrienoic acid (12-HHT) and thromboxane B2 in washed human platelets in response to collagen as well as from exogenous arachidonic acid (IC50=13–15 μM).Isolated COX-2 was less affected (IC50=58 μM), and in A549 cells, MK-886 (33 μM) failed to suppress COX-2-dependent 6-ketoprostaglandin (PG)F1α formation. MK-886 (10 μM) inhibits COX-1-mediated platelet aggregation induced by collagen or arachidonic acid whereas thrombin- or U-46619-induced (COX-independent) aggregation is not affected^[1].

In vivo

Repeated daily i.p. injections of MK-886 results in increased GluR1 phosphorylation in brain samples obtained from the prefrontal cortex. In contrast, a single injection of MK-886 does not alter cortical GluR1 phosphorylation^[2].

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines A549 cells Concentrations 33 μM Incubation Time 15 min Method IL-1β-stimulated A549 cells (5×10⁶/ml) are pre-incubated with MK-886 (MK, 33 μM), indomethacin (Indo, 10 μM), celecoxib (Cele, 5 μM) or vehicle (DMSO) for 15 min prior to the addition of 30 μM arachidonic acid. After 15 min at 37 °C, the amount of released 6-keto PGF1α was assessed by ELISA as described in the Materials and methods section.
Animal Study:^{^[2]}	Animal Models Male C57BL/6J mice Dosages 3 mg/kg Administration i.p.

Cell Assay:^{^[1]}

Cell lines
A549 cells
Concentrations
33 μM
Incubation Time
15 min
Method
IL-1β-stimulated A549 cells (5×10⁶/ml) are pre-incubated with MK-886 (MK, 33 μM), indomethacin (Indo, 10 μM), celecoxib (Cele, 5 μM) or vehicle (DMSO) for 15 min prior to the addition of 30 μM arachidonic acid. After 15 min at 37 °C, the amount of released 6-keto PGF1α was assessed by ELISA as described in the Materials and methods section.

Animal Study:^{^[2]}

Animal Models
Male C57BL/6J mice
Dosages
3 mg/kg
Administration
i.p.

References

Customer Product Validation

: Data from [Data independently produced by , , Eur J Pharmacol, 2018, 826:1-8]

Selleck's MK-886 has been cited by 6 publications

N-Palmitoyl-D-Glucosamine Inhibits TLR-4/NLRP3 and Improves DNBS-Induced Colon Inflammation through a PPAR-α-Dependent Mechanism [ Biomolecules, 2022, 12(8)1163]	PubMed: 36009057
Sulfated glucuronomannan hexasaccharide G6S1 enhanced lipolysis and lipophagy via PPARα pathway [ Int J Biochem Cell Biol, 2021, 139:106067]	PubMed: 34425199
The marine-derived furanone reduces intracellular lipid accumulation in vitro by targeting LXRα and PPARα [ J Cell Mol Med, 2020, 24(6):3384-3398]	PubMed: 31981312
Bexarotene Exerts Protective Effects Through Modulation of the Cerebral Vascular Smooth Muscle Cell Phenotypic Transformation by Regulating PPARγ/FLAP/LTB4 After Subarachnoid Hemorrhage in Rats. [ Cell Transplant, 2019, 28(9-10):1161-1172]	PubMed: 31010302
A novel PPARα/γ agonist, propane-2-sulfonic acid octadec-9-enyl-amide, ameliorates insulin resistance and gluconeogenesis in vivo and vitro [Ren T, et al. Eur J Pharmacol, 2018, 826:1-8]	PubMed: 29476879
Corticosteroids inhibit anti-IgE activities of specialized proresolving mediators on B cells from asthma patients. [Kim N, et al. JCI Insight, 2017, 2(3):e88588]	PubMed: 28194434

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SHIPPING AND STORAGE
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