文档介绍:# 35ý# 8þ # $ % & ' ( ( # Vol.35,No.8
tumorigenicabilityandgeneexpressionofHedgehogpathwayinGSCspheres.Results (1)Moreand
largertumorsphereswereformedbyGSCaftercoculturewithendothelialcells(P<005),especiallyundera
lowcellconcentrationof5cellsperwell(24.3% vs11.3%)and10cellsperwell(39.4% vs258%).(2)
HedgehogpathwayrelatedgenesincludingGli1,Oligo2andBmi1wereupregulatedinthecoculturedGSC
spheres(P<005).(3)LargerxenograftsweregeneratedbyGSCspheresmixedwithendothelialcells,which
alsoresultedintumorruptureandmodeldeath(P<005).(4)Thephenomenonabovenearlydisappeared
whenHedgehogpathwayhadbeeninhibitedbySmogeneknockdown.Conclusion Endothelialcellspromote
selfrenewalofGSCthroughactivatingHedgehogpathway.
[Keywords] gliomastemcell;endothelialcell;signalingtransduction;Hedgehogpathway
SupportedbytheNationalNaturalScienceFoundationofChina(30870965).Correspondingauthor:GuoDeyu,Tel:862368765452,Email:gdy007@
tmmu.edu.cn
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