fatty acid-binding protein

BMS309403 is a potent and selective inhibitor of adipocyte fatty acid binding protein aFABP. It improves endothelial function in apolipoprotein E-deficient mice and cultured human endothelial cells. It interacts with the fatty acid binding pocket inside the protein and competitively inhibits the binding of endogenous fatty acids.

STK-15 is a candidate for use as an inhibitor of fatty acid binding protein 5 (FABP5).

Rimiducid is a lipid-permeable tacrolimus analogue, homodimerizing an analogue of human protein fkbp12 and binding to wild-type fkbp12 with 1000-fold lower affinity. Rimiducid is a dimerizer agent that acts by cross-linking the FKBP domains. It dimerizes the Caspase 9 suicide switch and rapidly induces apoptosis.

HTS01037 is a fatty acid-binding inhibitor and a competitive antagonist of protein-protein interactions mediated by AFABP aP2 (Ki: 0.67 μM).

Nicodicosapent is a fatty acid niacin conjugate and an inhibitor of the sterol regulatory element-binding protein (SREBP), which is a key regulator of cholesterol metabolism proteins such as PCSK9, HMG-CoA reductase, ATP citrate lyase, and NPC1L1.

BMS-480404 is an effective small molecule inhibitor, which can bind to human keratinocyte fatty acid-binding protein.

The phosphatidylinositol (PtdIns) phosphates represent a small percentage of total membrane phospholipids. However, they play a critical role in the generation and transmission of cellular signals. PtdIns-(3,4,5)-P3, also known as PIP3, is resistant to cleavage by PI-specific phospholipase C (PLC). Thus, it is likely to function in signal transduction as a modulator in its own right, rather than as a source of inositol tetraphosphates. PIP3 can serve as an anchor for the binding of signal transduction proteins bearing pleckstrin homology (PH) domains. Protein binding to PIP3 is important for cytoskeletal rearrangement and membrane trafficking. PtdIns-(3,4,5)-P3 (1,2-dihexanoyl) is a synthetic analog of natural PIP3 with C6:0 fatty acids at the sn-1 and sn-2 positions. The compound features the same inositol and diacylglycerol (DAG) stereochemistry as that of the natural compound. The short fatty acid chains of this analog give it different physical properties from naturally-occurring PIP3, including higher solubility in aqueous media.

LDN 0088050 is selectivity adipocyte fatty acid binding protein (AFABP, FABP4) inhibitor with Ki values of 0.29 and 1.3 μM for FABP4 and FABP3, respectively. LDN 0088050 binds to FABP4 with a Kd of 2.05 μM[1]. Ki: 0.29 μM (FABP4), 1.3 μM (FABP3)[1]Kd: 2.05 μM (FABP4)[1] LDN 0088050 significantly inhibits LPS-induced expression of both TNFα and IL-6 in RAW264.7 cells[1]. [1]. Zhou Y, et al. The discovery of novel and selective fatty acid binding protein 4 inhibitors by virtual screening and biological evaluation. Bioorg Med Chem. 2016 Sep 15;24(18):4310-4317.

FFA2 allosteric agonist. Inhibits forskolin-induced cAMP increase and stimulates 35SGTPγS binding in biochemical assays (pEC50 values are 6.9 and 7.23, respectively). Binds at allosteric binding site. In functional assays, displays positive allosteric modulation of FFA-induced Gi signaling and negative allosteric modulation of FFA-induced Gq/G11 signaling. Inhibits lipolytic effect of isoproterenol (pEC50 = 5.03) and induces migration of human neutrophils in vitro. Bolognini et al (2016) A novel allosteric activator of free fatty acid 2 receptor displays unique Gi-functional bias. J.Biol.Chem. 291 18915 PMID:27385588 |Sergeev et al (2017) A single extracellular amino acid in free fatty acid receptor 2 defines antagonist species selectivity and G protein selection bias. Sci.Rep. 7 13741 PMID:29061999

Sodium palmitate-13C is the 13C-labeled variant of palmitic acid, a long-chain saturated fatty acid prevalent in animals and plants. This compound has been shown to induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer-binding protein homologous protein (CHOP) in mouse granulosa cells.

Palmitic acid-13C16 sodium, a 13C-labeled form of the naturally occurring saturated fatty acid Palmitic acid sodium, is prevalent in animals and plants. This compound can trigger the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in mouse granulosa cells.

Palmitic acid-13C2 is the 13C-labeled Palmitic acid. Palmitic acid is a long-chain saturated fatty acid commonly found in both animals and plants. Palmitic acid can induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in in mouse granulosa cells.

BMS-309403 sodium is a potent, orally active, selective inhibitor of adipocyte fatty acid binding protein (FABP4, aP2), with inhibitory constants (Ki) of <2 nM for FABP4, 250 nM for FABP3, and 350 nM for FABP5. It competitively binds to the fatty-acid-binding pocket of the protein, impeding the attachment of endogenous fatty acids. This compound enhances endothelial function in apolipoprotein E-deficient mice and cultured human endothelial cells, underlining its potential therapeutic benefits [1] [2] [3].

STK-22 is a novel Fatty Acid Binding Protein 5 (FABP5) Inhibitor.

PSB-17365 is a potent GPR84 agonist. PSB-17365 exhibits EC50 values vs. GPR84 of 2.5nM in a cAMP accumulation assay, and 100nM in a β-arrestin 2 recruitment assay. No direct binding affinities are provided. PSB-17365 is selective for GPR84 compared to other free fatty acid receptors (FFAR1 and FFAR4). GPR84, a Gi protein-coupled receptor that is activated by medium-chain (hydroxy)fatty acids, appears to play an important role in inflammation, immunity, and cancer.

DHA-paclitaxel, also know as Taxoprexin, is prodrug comprised of the naturally occurring omega-3 fatty acid docosahexaenoic acid (DHA) covalently conjugated to the anti-microtubule agent paclitaxel. Because tumor cells take up DHA, DHA-paclitaxel is delivered directly to tumor tissue, where the paclitaxel moiety binds to tubulin and inhibits the disassembly of microtubules, thereby resulting in the inhibition of cell division. Paclitaxel also induces apoptosis by binding to and blocking the function of the apoptosis inhibitor protein Bcl-2 (B-cell Leukemia 2). DHA-paclitaxel exhibits improved pharmacokinetic and toxicity profiles when compared to conventional paclitaxel and has demonstrated antineoplastic activity in animal models of cancer.

Eicosapentaenoic Acid (EPA) sodium, an orally active omega-3 long-chain polyunsaturated fatty acid (ω-3 LC-PUFA), demonstrates a unique ability to demethylate DNA, thereby facilitating the re-expression of the tumor suppressor gene CCAAT enhancer-binding protein δ (C EBPδ). This compound also activates the RAS ERK C EBPβ pathway by demethylating H-Ras intron 1 CpG island in U937 leukemia cells and promotes the relaxation of vascular smooth muscle cells, leading to vasodilation.

CooP, a linear glioblastoma-targeting nonapeptide, interacts with the mammary-derived growth inhibitor fatty acid binding protein 3 (FABP3) found in glioblastoma cells and their associated blood vessels. This interaction facilitates the targeted delivery of chemotherapy and various nanoparticles [1].

Calcium palmitate, a long-chain saturated fatty acid prevalent in animals and plants, induces the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in mouse granulosa cells. It is employed to establish a cell steatosis model [1] [2].

1,2-Dipalmitoyl-3-Octanoyl-rac-glycerol, a triacylglycerol, has palmitic acid at its sn-1 and sn-2 positions, and octanoic acid at the sn-3 position. Palmitic acid, a long-chain saturated fatty acid found in both animals and plants, can induce glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) expression in mouse granulosa cells. Octanoic acid, an oily liquid with a slightly unpleasant rancid taste, is utilized in ester production for perfumery, dye manufacturing, and also serves as a tremor-suppressing agent [1] [2] [3] [4].