Omega-6 polyunsaturated fatty acid metabolic pathway

The **omega‑6 polyunsaturated fatty acid (PUFA) metabolic pathway** refers to the series of enzymatic reactions that convert dietary omega‑6 essential fatty acids—primarily linoleic acid—into longer-chain metabolites such as arachidonic acid. These metabolites are further processed into bioactive lipid mediators called eicosanoids, which play key roles in regulating inflammation, platelet aggregation, vasoconstriction, and other physiological processes[1][2][3]. The enzymes involved include desaturases and elongases shared with the omega‑3 PUFA pathways; thus, both families compete for these enzymes. The balance between omega‑6–derived pro-inflammatory mediators (such as those from arachidonic acid) and omega‑3–derived anti-inflammatory mediators is critical for health. Overconsumption of omega‑6 PUFAs relative to omega‑3s is associated with increased risk for inflammatory diseases, cardiovascular disease, cancer progression, and other chronic conditions due to excessive production of pro-inflammatory eicosanoids[2][3][5]. This "target" is not a single molecular entity but rather a complex biochemical network; therefore it does not fit the definition of a druggable target like an enzyme or receptor. **Note:** This entry describes a *metabolic pathway*, not an individual molecule or canonical therapeutic target such as an enzyme or receptor. It cannot be directly targeted by drugs in the same way as proteins can be; instead interventions typically focus on modulating dietary intake or inhibiting specific enzymes within this pathway. If you require information about specific molecular targets within this pathway—such as cyclooxygenase (COX), lipoxygenase (LOX), delta-desaturases—or about particular metabolites like arachidonic acid or its receptors/effectors, please specify so more structured data can be provided.

Other names

Omega-6 PUFA metabolic pathwayn-6 polyunsaturated fatty acid metabolismLinoleic acid/arachidonic acid pathway (context-dependent)Omega-6 fatty acid biosynthesis and signaling