spla2

5-HT1A modulator 1 exhibits high affinities for the 5-HT1A, α1-adrenergic receptor, and D2 receptor (IC50s = 2 nM, 10 nM, and 40 nM).

sPLA2-X Inhibitor 31 is a selective inhibitor of secreted phospholipase A2 type X (sPLA2-X) with IC50 values of 26 nM for sPLA2-X, 310 nM for sPLA2-IIa, and 2230 nM for sPLA2-V.

sPLA2 inhibitor 3 (Compound 6c) functions as a potent α-glucosidase inhibitor (IC50= 0.0953 µM) and has potential applications in diabetes research.

sPLA2 inhibitor 2 (compound 6a) is an sPLA2 inhibitor with an IC50 value of 0.0475 μM, making it valuable for diabetes research.

KH064 is a sPLA2-IIA inhibitor of oral activity.

The sPLA2-IIA Inhibitor is a cyclic pentapeptide analog of FLSYK, specifically cyclic 2-Nal-Leu-Ser-2-Nal-Arg (c2), which interacts with human IIA phospholipase A2 (hGIIA) to impede its ester bond hydrolyzing function. As part of the esterase superfamily, sPLA2 enzymatically cleaves the sn-2 ester bond in glycerophospholipids, releasing arachidonic acid and lysophospholipids[1].

Trimipramine maleate (Surmontil maleate) appears to inhibit serotonin transport and norepinephrine uptake by nerve terminals. This increases available norepinephrine or serotonin and prolongs its action. Trimipramine Maleate is the maleate salt form of trimipramine, a tricyclic secondary amine of the dibenzazepine class, with an antidepressant property.

Asenapine Maleate (Org 5222 maleate) is a second generation (atypical) antipsychotic agent that is taken sublingually and used in the treatment of schizophrenia and manic or mixed episodes associated with bipolar 1 disorder. Asenapine is associated with a low rate of transient and mild serum aminotransferase elevations during therapy but has not been linked to instances of clinically apparent acute liver injury.

Varespladib (LY315920), a specific and effective human non-pancreatic secretory phospholipase A2 (hnsPLA) inhibitor(IC50=7 nM), has been investigated for the treatment and prevention of sickle cell disease, vaso-occlusive crisis, and acute coronary syndrome.

Tanshinone I (Tanshinone A), an active principle isolated from the herbal medicine Salvia miltiorrhiza, displays cytotoxicity against tumor cells.

Tris(2,4-di-tert-butylphenyl)phosphate (TDTBPP) isolated from Vitex negundoL inhibits secretory phospholipase A2 (sPLA2). Tris(2,4-di-tert-butylphenyl)phosphate has anti-inflammatory activity.

Vilazodone D8 is a deuterium-labeled vilazodone. Vilazodone is a combined inhibitor of serotonin specific reuptake (SSRI) and agonist of 5-HT1A receptor partial.

GK241 (compound 31a-c), a 2-oxoamide-based compound, exhibits inhibitory activity against group IIA secretory phospholipase A2 (GIIA sPLA2) in humans and mice, with IC50 values of 143 nM and 68 nM, respectively. The mechanism of inhibition has been explored through molecular dynamics simulations.

Asenapine hydrochloride (Org 5222 hydrochloride) is a 5-hydroxytryptamine receptor, adrenergic receptor, dopamine receptor and histamine receptor antagonist with antipsychotic effects used in neurological disorders such as schizophrenia and bipolar disorder.

secreted phospholipase A2 (sPLA2) inhibitor

Competitive inhibitor of secretory phospholipase A2 (sPLA2)

Me-Indoxam is an inhibitor of sPLA2. It has no effect on arachidonic acid release and platelet activating factor synthesis.

WAY-100635 maleate is a selective 5-hydroxytryptamine 1A receptor antagonist with an IC50 value of 0.91 nM and a Ki value of 0.39 nM. It is also a dopamine D4 receptor agonist with pIC50 values of 8.9 and 6.6 for 5-HT1A and α1-adrenergic, respectively.

CGP 43182 is an effective inhibitor of group IIA secretory phospholipase A2 (Group IIA sPLA2) activity in vitro, which can be used to prevent the synergistic effect of pro-inflammatory genes stimulated by cytokines mediated by NFkappaB.

WAY-100635 Maleate is a specific and effective 5-HT receptor antagonist (IC50=0.95 nM).

12-HETE ((±)12-HETE) is a modulator of PGE2, with both anti-thrombotic and pro-thrombotic effects, inducing PGE2 release and COX-2 expression via phospholipase A2 (sPLA2-IIA) inducers. It is also a neuroregulator activating retinal cell endothelial dysfunction in diabetic retinopathy.

FKGK 18 is an inhibitor of group VIA (GVIA) calcium-independent phospholipase A2 (iPLA2). It inhibits GVIA iPLA2 by 99.9% at 0.091 mole fraction in a mixed micelle activity assay and is selective for GVIA iPLA2 over GIVA cPLA2 and GV sPLA2 where it shows 80.8 and 36.8% inhibition, respectively. FKGK 18 inhibits iPLA2β activity in cytosolic extracts from INS-1 cells overexpressing iPLA2β (IC50 = ~50 nM) as well as iPLA2γ activity in mouse heart membrane fractions (IC50s = ~1-3 μM). It inhibits glucose-induced increases in prostaglandin E2 production and insulin secretion in human pancreatic islets when used at a concentration of 10 μM and inhibits thapsigargin-induced apoptosis in INS-1 cells overexpressing iPLA2β in a concentration-dependent manner. FKGK 18 (20 mg/kg, 3 times per week) reduces blood glucose levels in an intraperitoneal glucose tolerance test, decreases the incidence of diabetes, and increases serum insulin levels in non-obese diabetic (NOD) mice.

Phosphatidylcholine (PC) species are a common class of phospholipids that comprise the mammalian cell membrane. 1,2-Dioctanoyl PC is a synthetic analog of natural phosphatidylcholine species containing saturated C8:O fatty acids in the sn-1 and sn-2 positions of the glycerol backbone. It exhibits a critical micelle concentration (CMC) value of 0.25 mM at 27°C. 1,2-Dioctanoyl PC serves as an efficient substrate for phospholipase D (PLD) as well as sPLA2 isozymes from bovine pancreas and bee venom.

Thioester analogs of glycerophospholipids, in combination with Ellman's reagent, are convenient colorimetric substrates for the measurement of phospholipase (PL) activity. Palmitoyl thio-PC is a chromogenic PLA2 substrate that contains a palmitoyl thioester at the sn-2 position of the glycerol backbone. Hydrolysis of the thioester by PLA2 yields a free thiol that reacts readily with DTNB (Ellman's reagent) giving a bright yellow product with an absorbance maximum at 412 nm. Palmitoyl thio-PC has been used to measure bee venom sPLA2 activity in a phospholipid:Triton X-100 mixed micelle system.