9(Z),11(E)-Conjugated linoleic acid is an isomer of linoleic acid that has been found in beef and milk fat.1It binds to peroxisome proliferator-activated receptor α (PPARα; IC50= 140 nM) and activates the receptor in a reporter assay using COS-1 cells expressing mouse PPARα when used at a concentration of 100 μM.29(Z),11(E)-Conjugated linoleic acid inhibits TNF-α-inducedGLUT4expression and increases insulin-stimulated glucose transport in 3T3-L1 adipocytes.3Dietary administration of 9(Z)11(E)-conjugated linoleic acid reduces serum fasting glucose, insulin, and triglyceride levels and decreases white adipose tissue macrophage infiltration inob obmice. It also increases body weight gain and body fat in weanling mice.4[Matreya, LLC. Catalog No. 1278] 1.Shultz, T.D., Chew, B.P., Seaman, W.R., et al.Inhibitory effect of conjugated dienoic derivatives of linoleic acid and β-carotene on the in vitro growth of human cancer cellsCancer Lett.63(2)125-133(1992) 2.Moya-Camarena, S.Y., Heuvel, J.P.V., Blanchard, S.G., et al.Conjugated linoleic acid is a potent naturally occurring ligand and activator of PPARαJ. Lipid Res.40(8)1426-1433(1999) 3.Moloney, F., Toomey, S., Noone, E., et al.Antidiabetic effects of cis-9, trans-11-conjugated linoleic acid may be mediated via anti-inflammatory effects in white adipose tissueDiabetes56(3)574-582(2007) 4.Pariza, M.W., Park, Y., and Cook, M.E.The biologically active isomers of conjugated linoleic acidProg. Lipid Res.40(4)283-298(2001)
20-carboxy Arachidonic acid (20-COOH-AA) is the major metabolite of 20-HETE that is produced in renal tubular epithelial, endothelial, and microvascular smooth muscle cell cultures. This ω-oxidation conversion can take place using purified alcohol dehydrogenases three and four or by microsomes containing recombinant human CYP4F3B. Like 20-HETE, 20-COOH-AA inhibits ion transport in the kidneys. It also produces vasorelaxation of porcine coronary microvessels constricted with endothelin. 20-COOH-AA binds to isolated ligand binding domains of peroxisome proliferator-activated receptor α (PPARα) (Kd = 0.87 ± 0.12 μM) and PPARγ (Kd = 1.7 ± 0.5 μM), and is a dual activator of PPARα and PPARγ in a transiently transfected COS-7 cell reporter system.
Peroxisome proliferator-activated receptors (PPARs) α, δ, γ are ligand-activated nuclear transcription factors involved in the regulation of energy homeostasis as well as insulin sensitivity and glucose metabolism. Pharmacologies of PPARδ receptor agonists, though relatively obscure, have recently been reported to elevate high-density lipoprotein (HDL) cholesterol and lower plasma triglyceride (TG) levels in obese insulin resistant rhesus monkeys. CAY10592 is a full PPARδ agonist (EC50 = 30 nM) in a fatty acid oxidation assay of rat L6 muscle cells with desirable oral pharmacokinetic properties. In a transactivation assay using humanPPAR receptors, CAY10592 acts as a selective partial PPARδ agonist (EC50 = 53 nM) with no effect on PPARα or PPARγ activity up to 30 μM. Chronic treatment of high fat fed ApoB100/CETP-transgenic mice with CAY10592 at a dose of 20 mg/kg increases HDL levels, decreases LDL and TG levels, and improves insulin sensitivity.
20-HEPE is a metabolite of eicosapentaenoic acid that is formed via ω-oxidation of EPA by cytochrome P450 (CYP) ω-oxidases, including human CYP4F3B. It activates peroxisome proliferator-activated receptor α (PPARα) in COS-7 cells expressing a luciferase reporter when used at a concentration of 10 μM. 20-HEPE also activates murine transient receptor potential vanilloid receptor 1 (mTRPV1) in vitro but lacks antinociceptive activity in rats.
BMS-711939 is a potent and specific peroxisome proliferator-activated receptor (PPARα) agonist that has demonstrated excellent efficacy and safety in vivo in preclinical studies with an EC50 of 4 nM for PPARα in humans.
Highly selective orally active peroxisome proliferator-activated receptor (PPAR)γ agonist (pEC50 values are 8.05, < 4 and < 4 for humanPPARγ, PPARα and PPARδ receptors respectively). Decreases glucose, fatty acid and triglyceride levels following oral administration in vivo. Brown et al (1999) A novel N-aryl tyrosine activator of peroxisome proliferator-activated receptor-γ reverses the diabetic phenotype of the Zucker diabetic fatty rat. Diabetes 48 1415 PMID:10389847 |Nugent et al (2001) Potentiation of glucose uptake in 3T3-L1 adipocytes by PPARγ agonists is maintained in cells expressing a PPARγ dominant-negative mutant: evidence for selectivity in the downstream responses to PPARγ activation. Mol.Endocrinol. 15 1729 PMID:11579205 |Way et al (2001) Adipose tissue resistin expression is severely suppressed in obesity and stimulated by peroxisome proliferator-activated receptor γ agonists. J.Biol.Chem. 276 25651 PMID:11373275