PF-9184 Property

Melting point:

285.5-289.3 °C

Density 

1.574±0.06 g/cm3(Predicted)

storage temp. 

2-8°C

solubility 

≤15mg/ml in DMSO;20mg/ml in dimethyl formamide

pka

4.50±1.00(Predicted)

form 

powder

color 

white to beige

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

PF-9184 Chemical Properties,Usage,Production

Description

Microsomal prostaglandin E synthase-1 (mPGES-1) converts the COX product prostaglandin H₂ (PGH₂; ) into the biologically active PGE₂ . Like COX-2, the expression of mPGES-1 is induced in response to pro-inflammatory mediators, including LPS, IL-1β, and TNF-α. PF-9184 is a potent inhibitor of mPGES-1 (IC₅₀ = 16.5 nM for recombinant human enzyme). It displays at least 6,500-fold selectivity for mPGES-1 over COX-1 and COX-2. PF-9184 blocks the synthesis of PGE₂ in LPS-treated human whole blood and in IL-1β-stimulated fibroblasts (IC₅₀s = 0.4-5 μM).

Uses

PF 9184 is a?microsomal prostaglandin E?synthase-1(mPGES-1) inhibitor. mPGES-1is an enzyme induced during the inflammatory response and it is an attractive target for developing anti-inflammatory drugs.

in vitro

pf-9184 potently inhibited recombinant human mpges-1 with an ic50 value of 16.5 ± 3.8 nm. pf-9184 showed no effect on rhcox-1 and rhcox-2 with >6500-fold selectivity. in rationally designed cell systems, pf-9184 inhibited pge2 synthesis with ic50 in the range of 0.5–5 μm in serum-free cell and human whole blood cultures, while sparing the synthesis of 6-keto-pgf1α (pgf1α) and pgf2α[1]. pf-9184 showed no apparent cytotoxic effects up to 100 μm [1].

Enzyme inhibitor

This potent mPGES-1 inhibitor (FW = 461.32 g/mol; CAS 1221971-47-6; Solubility: 100 mM in DMSO), also named N-[3',4'-dichloro(1,1'- biphenyl)yl]-4-hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide), targets human and rat microsomal prostaglandin E synthase 1, with respective IC50 values of 16.5 nM and 1.08 μM, exhibiting >6500x selectivity toward mPGES-1 versus COX1 and COX2. PF-9184 inhibits IL- 1β-induced PGE2 synthesis in vitro. In inflammation and clinically relevant biological systems, mPGES-1 expression, like COX-2 expression is induced in cell context- and time-dependent manner, a behavior that is fully consistent with the kinetics of PGE2 synthesis

References

[1] mbalaviele g, pauley a m, shaffer a f, et al. distinction of microsomal prostaglandin e synthase-1 (mpges-1) inhibition from cyclooxygenase-2 inhibition in cells using a novel, selective mpges-1 inhibitor[j]. biochemical pharmacology, 2010, 79(10): 1445-1454.
[2] engblom d, saha s, engstrm l, et al. microsomal prostaglandin e synthase-1 is the central switch during immune-induced pyresis[j]. nature neuroscience, 2003, 6(11): 1137-1138.
[3] jakobsson p j, thorén s, morgenstern r, et al. identification of human prostaglandin e synthase: a microsomal, glutathione-dependent, inducible enzyme, constituting a potential novel drug target[j]. proceedings of the national academy of sciences, 1999, 96(13): 7220-7225.