Phospholipases A(2) (PLA(2)s) form a family of enzymes catalyzing the hydrolysis of membrane phospholipids into arachidonic acid, which is the major precursor of pro-inflammatory eicosanoids. As a result, PLA(2)s have been considered as potential targets in anti-inflammatory drug discovery. Marine natural products are a rich source of bioactive compounds, including PLA(2) inhibitors. Here, we review the properties of marine PLA(2) inhibitors identified since the first discovery of PLA(2) inhibitory activity in the marine natural product manoalide in the mid 1980s.
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