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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Platelet-activating factor (PAF)-like oxidized phospholipids: relevance to atherosclerosis.

Lipid peroxidation is involved in the pathogenesis of chronic diseases including atherosclerosis. Oxidized lipoprotein has diverse biological activities and is believed to initiate atheroma formation and maturate fatty plaque. The active components of oxidized lipoproteins still remain to be clarified, but a likely candidate is the phosphatidylcholine (PC) having an sn-2-short-chain acyl group with a methyl, hydroxyl, aldehydic or carboxylic terminal. These unique PCs, formed by oxidative fragmentation of the polyunsaturated acyl group of the parent PC in liposomes, low density lipoproteins and blood plasma, induce platelet aggregation through the activation of the receptor for platelet-activating factor (PAF), due to their resemblance in structure with PAF. We have found that PAF-like lipids regulate DNA synthesis and production of nitric oxide independently of the activation of the PAF receptor in vascular smooth muscle cells. Regulation of vascular cell function through two distinct signaling pathways mediated by PAF-like lipids provides new insight into the mechanism of induction of atherosclerosis.[1]

References

  1. Platelet-activating factor (PAF)-like oxidized phospholipids: relevance to atherosclerosis. Tokumura, A., Sumida, T., Toujima, M., Kogure, K., Fukuzawa, K. Biofactors (2000) [Pubmed]
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