简介：Objective:MemorystemTcells(Tscm)haveattractedattentionbecauseoftheirenhancedself-renewal,multipotentcapacity,andanti-tumorcapacities.However,littleisknownaboutTscminpatientswithrenalclearcellcarcinoma(RCC)andtheroleofWntsignalinginthesecells.WeevaluatedTscmfromRCCpatientsconcerningtheiractivationofWntsignalinginvitroandexploredthemechanismofpreferentialsurvival.Methods:FlowcytometryidentifiedsurfacemarkersandcytokinesproducedfromaccumulatedTscminthepresenceoftheglycogensynthasekinasebetainhibitorTWS119.Apoptosiswasevaluatedafterinductionusingtumornecrosisfactor-alpha.ImmunofluorescenceandWesternblotanalyseswereusedtoinvestigatetheactivationofthenuclearfactor-kappaB(NF-КB)pathway.Results:RCCpatientshadasimilarpercentageofCD4~+andCD8~+Tscmashealthydonors.ActivationofWntsignalingbyTWS119resultedintheaccumulationofTscminactivatedTcells,butreversalofdifferentiatedTcellstoTscmwasnotachieved.PreferentialsurvivalofTscmwasassociatedwithincreasedanti-apoptoticabilitymediateddownstreamoftheNF-КBactivationpathway.Conclusions:ThefindingthatTscmcanaccumulatebyWntsignalinginvitroinbloodfromRCCpatientswillhelpindevisingnewcancertherapystrategiesofTscm-basedadoptiveimmunotherapy,suchasdendriticcell-stimulatedTscm,andTcellreceptororchimericantigenreceptor-engineeredTscm.

简介：目的研究扶正固本颗粒联合顺铂对荷瘤小鼠体内抗肿瘤治疗及T细胞免疫调节的影响。方法选取昆明种小鼠120只,雌雄各半,随机分为6组,每组20只,建立小鼠S180腹腔积液瘤模型。空白组,无任何处理;模型组:等体积蒸馏水灌胃;化疗组:顺铂注射液(1mg/kg)腹腔注射;低、中、高剂量组:顺铂注射液(1mg/kg)腹腔注射联合扶正固本颗粒(5.625、11.250、22.500g/kg)灌胃给药,每日给药1次,共10天,观察小鼠一般情况,记录体重变化,计算抑瘤率、脏器指数,流式细胞仪检测小鼠外周血中CD4^+、CD8^+及T淋巴细胞亚群水平。结果化疗组和低、中、高剂量组的抑瘤率分别为65.5%、43.2%、44.0%、57.6%。与化疗组比较,低、中、高剂量组小鼠体重与血液中Th1/Th2水平均提高;中、高剂量组小鼠胸腺指数和血液中CD4^+、Th1、Th17水平均提高,CD8^+水平降低;高剂量组小鼠血液中Th2、Treg水平下降,Th17/Treg水平提高,差异均有统计学意义(P﹤0.05)。结论顺铂联合高剂量扶正固本颗粒治疗较单独化疗能增强荷瘤小鼠T细胞免疫。