eicosanoid signaling pathway prostanoid signaling pathway 2013-05-14T12:36:29Z PW:0001296 Prostanoids are eicosanoids derived from omega-3 or omega-6 fatty acids and represented by several families. One such source is the arachidonic acid metabolism via the cyclooxygenase mediated route. Several categories of prostanoids can be generated and signaling via several receptor types elicits a range of physiological responses. Historically, they are viewed as mediators of inflammation. pathway vpetri