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1、HindawiPublishingCorporationMediatorsofInflammationVolume2010,ArticleID858176,6pagesdoi:10.1155/2010/858176ReviewArticleLipidMediatorsinAcneMonicaOttaviani,EmanuelaCamera,andMauroPicardoLaboratoryofCutaneousPhysiopathology,SanGallicanoDermatologicalInstituteIRCCS,ViaElioChianes
2、i53,00144Rome,ItalyCorrespondenceshouldbeaddressedtoMauroPicardo,picardo@ifo.itReceived14May2010;Accepted6July2010AcademicEditor:ChiaraDeLucaCopyright©2010MonicaOttavianietal.ThisisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,whichpermitsunrestricted
3、use,distribution,andreproductioninanymedium,providedtheoriginalworkisproperlycited.Multiplefactorsareinvolvedinacnepathogenesis,andsebumsecretionisoneofthemainones.Therolesebumplaysinacnedevelopmenthasnotbeencompletelyelucidatedyet;however,increasingamountsofdataseemtoconfirmth
4、epresenceofalterationsinsebumfromacnepatients.Alteredratiobetweensaturatedandunsaturatedfattyacidshasbeenindicatedasanimportantfeaturetobeconsideredinadditiontothealteredamountofspecificfattyacidssuchaslinoleicacid.Furthermore,particularattentionhasbeenfocusedonsqualeneperoxide
5、thatseemstobeabletoinduceaninflammatoryresponsebeyondcytotoxicityandcomedonesformation.Moreover,recentdatasuggestthatlipidmediatorsareabletointerferewithsebocytesdifferentiationandsebogenesisthroughtheactivationofpathwaysrelatedtoperoxisomeproliferators-activatedreceptors.Unders
6、tandingthefactorsandmechanismsthatregulatesebumproductionisneededinordertoidentifynoveltherapeuticstrategiesforacnetreatment.1.Introductionthatsynthesiselipidsandaccumulatethemincytoplasmiclipiddroplets.Duringthefinalstagesofdifferentiation,whenAcneisaskindisorderwithmultifactor
7、ialpathogenesis.Thetheybecomefullymature,sebocytesundergodisintegrationmechanismsunderlyingitsonsetandsubsequentdevelop-andreleasetheircontent,anoilyandwaxymaterial,intomentarenotyetcompletelyclarified.Amongthefactorsthefollicle[6–9].Humansebumcontainstriglycerides,waximplicate
8、dinacneoccurrence,sebumsecretioncanbeesters,squalene,choleste