The Regulatory Effects of Polyporus Polysaccharide on the Nuclear Factor Kappa B Signal Pathway of Bladder Cancer Cells Stimulated by Bacillus Calmette-Guerin.pdfVIP
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The Regulatory Effects of Polyporus Polysaccharide on the Nuclear Factor Kappa B Signal Pathway of Bladder Cancer Cells Stimulated by Bacillus Calmette-Guerin.pdf
· 531·
ORIGINALARTICLE
TheRegulatoryEffectsofPolyporusPOIySaCCharideonthe
NuclearFactorKappaBSignalPathwayofBladderCancer
CellsStimulatedbyBacillusCalmette·Guerin
WEIJian-an(危建安),ZENGXing(曾 星),HANLing(韩 凌),andHUANGYu(黄 羽)
ABSTRACT objective:TodetecttheeffectsofPolyporuspolysaccharide(PPS),BacillusCalmette.Guerin
(BCG),andtheircombinationonthenuclearfactorkappaB(NF-KB)signalingpathwayassociated-gene
expressionandinvestigatethemolecularmechanismsofthetoxic-reducingeffectofPPSincoordinationwith
BCG againstbladdercancer.Methods:AfterT739ceilsweretreatedwithPPS,BCG andtheircombination。
thechangesinmRNAandproteinexpressionofinhibitorofkappaBkinasebeta(IKK13),NF-KBsubunitp65
(NF-KBp65),intraceflularadhesionmolecule1(ICAM1)andchemokine(C-cmotif)Iigand2(CCL2)inbladder
cancercellIineT739weredeterminedbyrelativequantitativereal-timePCR,W esternblot。andflow cytometry
(FCM).NF-KBp65DNA-bindingactivityinT739cel1wasdetectedbybiotinylatedprobe—ELISA,andNF-KB
p65nuclearexpressioninT739cel1wasobservedbyimmunohistochemistry.Results:ComparedwiththeT739
controlgroup,themRNAexpressionofIKBKB(IKK13),ReIA(NF—KBp65),ICAM1andCCL2inT739cells
treatedwithBCGwereincreasedobviously(Ratio2.0),aswelIastheexpressionofIKKB。CCL2andlCAM1
proteins.Meanwhile.NF—KBp65DNA-bindingactMtyandNF-KBp65nuclearexpressionin1739cellstreated
withBCGwereup-regulatedsignificantly(PO.05).Comparedwiththecontrol,theincreasedexpressionin1_739
cellsweresimultaneouslydown-regulatedafterPPStreatment.exceptforICAM1proteinexpression。W ithcells
treatedwithacombinationofBCG andPPS,theexpressionofgenesassociatedwiththeNF-KBsignaling
pathway,suchasIKBKB,ICAM1andCCL2。werealIdown-regulatedcomparedtotheBCG group,aswellas
RelA mRNA expression.NF—KBp65DNA—bindingactivityandNF—KB p65nuclearexpressi
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