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XYZ[;CD3+TZ[   ['BC0DE] R331.123;R730.23;R735.2 [FGHIJ] A Distribution,phenotypeandimmunosuppressivefunctionoftumorassociated neutrophilsingastriccancer WangTingting1,ZhuangYuan1,ChenNa1,PengLiusheng1,ChengPing1,LiWenhua1,ZhaoYongliang2,YuPeiwu2,
ZouQuanming1(1DepartmentofMicrobiologyandBiochemicalPharmacy,NationalEngineeringResearchCenterforImmunological Products,CollegeofPharmacy,2DepartmentofGeneralSurgery,SouthwestHospital,ThirdMilitaryMedicalUniversity,Chongqing,
400038,China)   [Abstract] Objective Toanalyzethedistributionandphenotypeofneutrophilsinperipherybloodand
differenttypesofgastrictissuesfromgastriccancer(GC)patients,andtoinvestigatetheinfluenceofGCtissue
culturesupernatantsinducedconditionedneutrophils(GCSICNs)onCD3+Tcells.Methods FlowcytometrywasemployedtodetectandanalyzetheratioandphenotypeofCD66b+neutrophilsintumoral,peritumoral
andnormalgastrictissuesandperipheralbloodof42GCpatients.Then,paraffinembeddedtissuesofGCpatientswereinvestigatedimmunohistochemicallywithantihumanCD15antibodytoanalyzetheinfiltrationof
neutrophilsinsitu.Finally,GCSICNswerecoculturedwithCD3+Tcells,andtheproliferationofCD3+Tcellswasanalyzedbyflowcytometry.Results ThepercentageofneutrophilsinperipherybloodofGCpatients
wasmuchhigherthanthatinhealthydonors(P<001).Thefrequencyofneutrophilswassignificantlyhigher
intumoralgastrictissuesthaninperitumoral(P<005)orinnormalgastrictissues(P<005).Meanwhile,
neutrophilsinfiltratedindifferenttypesofgastrictissuesandinperipherybloodofGCpatientswereprobably
mainlymaturesegmentedneutrophils.Inaddition,GCSICNssignificantlyinhibitedtheproliferationofCD3+T
cells.Conclusion NeutrophilsareaccumulatedinGCmicroenvironmentandmayfacilitatetheprogressionof
GCbyinhibitingtheproliferationofCD3+Tcells.  [Keywords] gastriccancer;neutrophils;CD3+Tcells Correspondingauthor:ZouQuanming,Email:qmzou@tmmu.edu.cn;ZhuangYuan,Email:yuanzhuang1983@yahoo.com [KLMN] °±‘,Email:qmzou@tmmu.edu.cn
² ³,Email:yuanzhuang1983@yahoo.com [OPQR] http://www.cnki.net/kcms/detail/51.1095.R.20131219.1915.005.html(20131219) 588 #
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