Prostacyclin and Lung Cancer Chemoprevention

TL;DRAbstract

Eicosanoids are a family of bioactive lipid metabolites of arachidonic acid (AA). AA is hydrolyzed from membrane phospholipids through the action of phospholipase A2 (PLA2). Free AA can then be metabolized through three major pathways: cyclooxygenase (COX) to produce prostaglandins (PG) and thromboxane, lipoxygenase (LOX) to produce leukotrienes and hydroxy eicosatetraenoic acid (HETES), and cytochrome P-450 to produce epoxyeicosatrienoic acids (EETs). Most studies that have examined eicosanoids and cancer have focused on COX-2 in colon cancer. Elevated COX-2 expression was first demonstrated in colon cancer, in which colon tumors increased COX-2 expression compared to normal colon tissues (1). KeywordsLung CancerAdenomatous Polyposis ColiPrimary Pulmonary HypertensionTumor MultiplicityLung TumorigenesisThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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