Docosatrienoic Acid

Docosatrienoic Acid (CAS No.: 28845-86-5) is a rare ω-3 polyunsaturated fatty acid that serves as a bioactive lipid mediator primarily investigated in inflammation and immunology research. It is not commonly detected in endogenous phospholipid pools and is considered a polyunsaturated analog of long-chain saturated fatty acids, contributing to its distinct biological activity profile. This compound modulates inflammatory signaling by competitively inhibiting the interaction between leukotriene B4 (LTB4) and its receptors on neutrophil membranes, thereby attenuating downstream pro-inflammatory signaling pathways, with reported inhibitory activity in the low micromolar range. In addition to its effects on lipid-mediated immune responses, Docosatrienoic Acid has been shown to dose-dependently inhibit mammalian DNA polymerases and human topoisomerases I and II, suggesting potential interactions with enzyme hydrophobic domains and implicating it in the regulation of DNA replication and transcriptional processes. These properties make it a valuable tool for dissecting LTB4-driven neutrophil activation, lipid signaling pathways, and enzyme-target interactions in biochemical and cellular systems. It is widely utilized in mechanistic studies of inflammation, immune cell function, and lipid mediator biology, as well as in exploratory drug discovery efforts targeting inflammatory and nucleic acid-processing pathways, with experimental concentrations typically selected based on specific assay conditions and study objectives.