
Prominin2isapentaspanmembraneglycoproteinpredominantlyexpressedinneuroepithelialcells,hematopoieticstemcellsandepithelialcellsoftheadultkidneyanddigestivetract.
Images:FluorescencemicroscopyanalysisofexpressionofPROM2(redsignal),aK-Rasdependencysignaturegene,inK-Ras-dependent(H358andYAPC)andKRas-independent(PA-TU-8988TandA549)celllines.GreensignalcorrespondstoFactin,asrevealedbyphalloidinstaining.Scalebar=15μM.CancerCell.2009June2;15(6):489–500.doi:10.1016/j.ccr.2009.03.022.
Prominin2expressionisdown-regulatedinaggressiveprostatecancercelllinesandtransienttransfectionofPROML2expressionvectorshasbeenshowntoinduceapoptosisinculturedprostatecancercells,suggestingatumorsuppressiveroleforProminin2.Prominin2expressionislikelytobeinvolvedingrowthsuppressionintheprostate,anddown-regulationofProminin2maydisruptnormalprostatichomeostasisandleadtouncontrolledprostaticgrowth.
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