[Lipids and skin inflammation: role of phospholipases A2].
Phospholipases A2 (PLA2) are enzymes that catalyse the hydrolysis of glycerophospholipids at the sn-2 position, generating free fatty acids and lysophospholipids. At present, PLA2 family consists of 12 groups. PLA2 are involved in many pathophysiological processes such as barrier function, eicosanoid production, and inflammation. They are implicated in inflammatory diseases of the skin: psoriasis, eczema, atopy. The presence of PLA2 activity has been demonstrated several years ago, however the precise localization of all these PLA2 in the epidermis and its appendages has to be determined. Further studies have shown that these enzymes are expressed in various layers of epidermis. This differential localization suggests different roles for each PLA2 in skin physiology and during inflammation.
Maury
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E
Institut de recherche Pierre-Fabre, Cerper-hôtel-Dieu Saint-Jacques, Centre de physiopathologie de Toulouse Purpan, unité 563, hôpital Purpan, Toulouse, France. eric.maury@pierre-fabre.com
Julié
S
S
Charvéron
M
M
Gall
Y
Y
Chap
H
H
D003872:Dermatitis / Q000201:enzymology* / Q000473:pathology; D004817:Epidermis / Q000201:enzymology; D005227:Fatty Acids / Q000378:metabolism; D006801:Humans; D008055:Lipids; D008246:Lysophospholipids / Q000378:metabolism; D010741:Phospholipases A / Q000145:classification / Q000502:physiology*; D054467:Phospholipases A2
D005227:Fatty Acids; D008055:Lipids; D008246:Lysophospholipids; D010741:Phospholipases A; D054467:Phospholipases A2