CatalogNo.: F-H080 MW: 750.26 Description: Sn(IV)ProtoporphyrinIXisaninhibitorhemeoxygenase(theenzymethatcatalyzestheconversionofhemetobiliverdininthehemedegradationpathway)buthasalsobeenfoundtostimulateproductionofthehemeoxygenaseprotein.ContrasttheactivityofCo(III)ProtoporphyrinwhichhasbeenfoundtohavesimilaractivitiestoSn(IV)ProtoporphyrinbutwithagreaterenhancementofhemeoxygenasesynthesisactivitysuchthathemeoxygenaseactivityisactuallyincreasedwhenadmiNISTeredinvivowhileinvitroadministrationinhibitshemeoxygenaseactivity.Hemeoxygenasehasbeenimplicatedintumorcellresistancetochemotherapy,reductionoffreerADIcalformationandinflammation,andassociatedwithvascularrepair. | |||
StorageSn(IV)ProtoporphyrinIXisstableforatleastoneyearwhenstoredasasolid,protectedfrommoisture,at-20°C.Protectfromlight.References1)Sardana,M.K.andA.Kappas(1987)."Dualcontrolmechanismforhemeoxygenase:tin(IV)-protoporphyrinpotentlyinhibitsenzymeactivitywhilemarkedlyincreasingcontentofenzymeproteininliver."ProcNatlAcadSciUSA84(8):2464-8.2)Jozkowicz,A.,H.Was,etal.(2007)."Hemeoxygenase-1intumors:isitafalsefriend?"AntioxidRedoxSignal9(12):2099-117. 3)Abraham,N.G.andA.Kappas(2005)."Hemeoxygenaseandthecardiovascular-renalsystem."FreeRadicBiolMed39(1):1-25. 4)Kim,D.H.,A.P.Burgess,etal.(2008)."Hemeoxygenase-mediatedincreasesinadiponectindecreasefatcontentandinflammatorycytokinestumornecrosisfactor-alphaandinterleukin-6inZuckerratsandreduceAdipogenesisinhumanmesenchymalstemcells."JPharmacolExpTher325(3):833-40. |
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