简介：目的探讨肝癌衍生生长因子(HDGF)、NET-1、组蛋白脱乙酰基酶1(HDAC1)在肺癌患者肺癌组织中的表达情况及临床意义。方法收集126例肺癌患者的肺癌组织及对应的癌旁正常组织,采用免疫组织化学法检测肺癌组织和癌旁正常组织中HDGF、NET-1和HDAC1的阳性表达情况,分析HDGF、NET-1和HDAC1阳性表达与肺癌患者临床特征的关系;分析肺癌组织中HDGF、NET-1和HDAC1阳性表达与肺癌发展的相关性;分析肺癌组织中HDGF、NET-1和HDAC1表达的相关性。结果肺癌组织中HDGF、NET-1和HDAC1的阳性表达率均明显高于癌旁正常组织(P﹤0.01);吸烟、分化程度为高中分化、TNM分期为Ⅲ~Ⅳ期、有远处转移肺癌患者肺癌组织中HDGF、NET-1、HDAC1的阳性表达率均明显高于未吸烟、分化程度为低分化、TNM分期为Ⅰ~Ⅱ期、无远处转移肺癌患者(P﹤0.01);肺癌组织中HDGF、NET-1和HDAC1的阳性表达率与肺癌患者的TNM分期、分化程度及远处转移情况均呈正相关(P﹤0.05);肺癌组织中,HDGF的阳性表达率与NET-1和HDAC1的阳性表达率呈正相关(P﹤0.05),NET-1的阳性表达率与HDAC1的阳性表达率呈正相关(P﹤0.05)。结论肺癌组织中HDGF、NET-1和HDAC1的阳性表达率与肺癌的发生、发展关系密切,可为临床上肺癌的诊断和治疗提供理论依据。

简介：Objective:Stromalinteractionmolecule1(STIM1)overexpressionhasbeenreportedtoplayanimportantroleinprogressionofseveralcancers.However,themechanismofSTIM1overexpressionanditsrelationshipwithhypoxiainpancreaticductaladenocarcinoma(PDAC)remainsunclear.Methods:STIM1andHIF-1αexpressionwastestedusingimmunohistochemistryintissuemicroarray(TMA)includingpancreaticcancerandmatchednormalpancreatictissues,andtheirrelationshipswithclinicopathologicalparameterswerestatisticallyanalyzed.q-PCR,Westernblot,ChIP,andluciferaseassaywereemployedto030analyzetranscriptionalregulationbetweenHIF-1αandSTIM1inpancreaticcancerPANC-1cells.Results:BothSTIM1andHIF-1αshowedhigherpositiveratesandup-regulatedexpressionincancertissuescomparedtothatofnormaltissues(P<0.05).TheKaplan–MeiermethodrevealedthathigherHIF-1αandSTIM1expressionlevelsweresignificantlycorrelatedwithdecreaseddisease-freesurvival(P=0.025andP=0.029,respectively).TheexpressionofHIF-1αshowedasignificantpositivecorrelationwiththatofSTIM1incancertissues(rs=0.3343,P=0.0011)andpancreaticcancercelllines.Furthermore,ChIPandluciferaseassaysconfirmedthatHIF-1αboundtotheSTIM1promoterandregulateditsexpressioninPANC-1cells.Conclusions:Inhypoxiamicroenvironment,up-regulatedexpressionofSTIM1mediatedbyHIF-1αpromotesPDACprogression.HIF-1αandSTIM1arepotentialprognosticmarkersand/ortherapeutictargetsforPDACtreatment.

简介：烟碱型乙酰胆碱受体(nAChR)是细胞膜上超家族配体门控离子通道受体,依赖尼古丁及其代谢产物的活性,激活各种代谢通路。这些代谢通路与肿瘤细胞的增殖、生存、迁移、侵袭、凋亡和血管生成有密切的联系,而CHRNA5-A3-B4是编码nAChRα5、α3和β4亚基的一组基因簇。研究证实,CHRNA5-A3-B4基因的多种单核苷酸多态性(SNP)与肿瘤的发生发展相关,这种突变的多样性,促进了更为主效的基因位点的探索,为肿瘤的靶向治疗提供依据。本文结合相关研究,从肺癌、食管癌及其他相关肿瘤疾病的发生来阐述CHRNA5-A3-B4相关SNP基因位点,以便获取主效基因位点。

简介：目的:研究LKB1(liverkinaseB1)基因在不同类型急性白血病中的表达情况,探讨LKB1基因与急性白血病发生的相关性。方法:回顾性选取2016年6月至2017年6月初次诊断的急性白血病患者骨髓标本32例,同时选取非恶性血液系统疾病患者骨髓标本12例作为对照组。提取骨髓标本中单个核细胞,应用蛋白质免疫印迹法(Westernblot)检测两组间患者LKB1基因表达情况,并分析其与患者年龄、性别及不同类型急性白血病的关系。结果:LKB1基因表达与年龄、性别无显著相关性。对照组12例中,有12例LKB1为阳性。根据疾病类型将白血病组分为3组:急性非淋巴细胞白血病组19例,其中LKB1阳性为9例,与对照组比较差异有统计学意义(P<0.05);急性B淋巴细胞白血病组8例,其中LKB1阳性为3例,与对照组比较差异有统计学意义(P<0.05);急性T淋巴细胞白血病组5例,其中LKB1阳性为5例,与对照组比较差异无统计学意义(P>0.05)。追踪患者治疗效果,提示LKB1+组的1疗程CR率及2疗程CR率均较LKB1-组高,且复发难治的患者比例较LKB1-组低。结论:LKB1基因在急性非淋巴细胞白血病及急性B淋巴细胞白血病的发生发展中起到了一定的作用,而急性T淋巴细胞白血病的发病机制可能与前两者不同。LKB1阴性可能提示预后不良。

简介：Objective:ThepurposesofthisstudyweretoidentifyriskfactorsforcervicallymphnodemetastasisandtoexaminetheassociationbetweenBRAFV600Estatusandclinicalfeaturesinpapillarythyroidmicrocarcinoma(PTMC).Methods:Atotalof1,587patientswithPTMC,treatedinTianjinMedicalUniversityCancerInstituteandHospitalfromJanuary2011toMarch2013,underwentretrospectiveanalysis.Wereviewedandanalyzedfactorsincludingclinicalresults,pathologyrecords,ultrasoundresults,andBRAFV600Estatus.Results:Multivariatelogisticregressionanalysesdemonstratedthatgender(male)[oddsratio(OR)=1.845,P=0.000],age(<45years)(OR=1.606,P=0.000),tumorsize(>6mm)(OR=2.137,P=0.000),bilateralism(OR=2.011,P=0.000)andextrathyroidalextension(OR=1.555,P=0.001)servedasindependentpredictorsofcentrallymphnodemetastasis(CLNM).Moreover,CLNM(OR=29.354,P=0.000)servedasanindependentpredictoroflaterallymphnodemetastasis(LLNM).Amongpatientswithasolitaryprimarytumor,thosewithtumorlocationinthelowerthirdofthethyroidlobeortheisthmusweremorelikelytoexperienceCLNM(P<0.05).UnivariateanalysesindicatedthatCLNM,LLNM,extrathyroidalextension,andmultifocalitywerenotsignificantlyassociatedwithBRAFV600Emutation.Conclusions:ThepresentstudysuggestedthatprophylacticneckdissectionofthecentralcompartmentshouldbeconsideredinpatientswithPTMC,particularlyinmenwithtumorsizegreaterthan6mm,agelessthan45years,extrathyroidalextension,andtumorbilaterality.AmongpatientswithPTMC,BRAFV600Emutationisnotsignificantlyassociatedwithprognosticfactors.ForabetterunderstandingofsurgicalmanagementofPTMCandtheriskfactors,werecommendmulticenterresearchandlong-termfollow-up.

简介：目的:探讨MEG3在雷公藤红素诱导的肝癌HepG2细胞凋亡和细胞增殖抑制过程中的作用。方法:采用CCK-8法检测HepG2细胞增殖情况,流式细胞仪检测细胞凋亡情况,Westernblot检测cleavedcaspase-3、Bax和Bcl-2蛋白的表达,real-timePCR检测MEG3的表达。结果:雷公藤红素抑制HepG2细胞增殖、促进细胞凋亡并上调MEG3的表达;敲低MEG3的表达后显著逆转了雷公藤红素诱导的HepG2细胞增殖抑制和细胞凋亡。结论:雷公藤红素通过上调MEG3的表达抑制HepG2细胞增殖、促进细胞凋亡。

简介：Objective:SHR-1210isanewandpromisinganti-PD-1agentforsolidtumors.DuringthephaseIstudyofSHR-1210,weencounteredanovelbutprevalentimmune-relateddermatologictoxicity:reactivecapillaryhemangiomas(RCHs).ThuswetriedtosummarizethefeaturesofRCHsandestimatetheirrelationshipwithtumorresponse.Methods:Thisprospectiveobservationalstudysystematicallyenrolled98patientswithadvancedsolidtumorsfromApril27th,2016toJune8th,2017inthecontextofthephaseIclinicalstudyofSHR-1210.Thisreportfocusedontheskintoxicities.Patientsunderwententireskininspectioneverytwoweekswhiletakingmedication.TheclinicalcourseofRCHswasrecordedandtheirassociationwithtumorresponsewasestimated.Thedatacut-offdatewasNovember15th,2017.Results:Afteramedianfollow-upof242(range,29–567)days,RCHswereobservedin85.7%(84/98)ofpatientsoncutaneous/mucosalsurfaces;84.5%(71/84)oftheRCHswereevaluatedasgrade1adverseevents.Nograde3or4RCHswereobserved.ThetimeofonsetofRCHswasdosedependentandshortestinthe400mg-dosecohort(P<0.001).SpontaneousandcompleteregressionofRCHswasobservedbothduringandaftertreatment.TheobjectiveresponserateoftumorsforpatientswithRCHswas28.9%(24/83).However,noresponderswereobservedamongthepatientswithoutRCHs.Conclusions:RCHswereprevalentbutmanageableduringtreatmentwithSHR-1210.Itmightaddtotheexpandingliteratureregardingimmune-relateddermatologicadverseevents.

简介：Objective:ToexaminetheeffectofpSer9-GSK-3βonbreastcancerandtodeterminewhethertheunderlyingmetabolicandimmunologicalmechanismisassociatedwithROS/eIF2Bandnaturalkiller(NK)cells.Methods:WeemployedTWS119toinactivateGSK-3βbyphosphorylatingSer9andexploreditseffectonbreastcancerandNKcells.TheexpressionofGSK-3β,naturalkillergroup2memberD(NKG2D)ligands,eIF2BwasquantifiedbyPCRandWesternblot.Wemeasuredintracellularreactiveoxygenspecies(ROS)andmitochondrialROSusingDCFH-DAandMitoSOXTMprobe,respectively,andconductedquantitativeanalysisofcellularrespirationon4T1cellswithmitochondrialrespiratorychaincomplexⅠ/Ⅲkits.Results:OurinvestigationrevealedthatTWS119downregulatedNKG2Dligands(H60aandRae1),suppressedthecytotoxicityofNKcells,andpromotedthemigrationof4T1murinebreastcancercells.Nevertheless,LY290042,whichattenuatesp-GSK-3βformationbyinhibitingthePI3K/Aktpathway,reversedtheseeffects.WealsofoundthathigherexpressionofpSer9-GSK-3βinducedhigherlevelsofROS,andobservedthatabnormalityofmitochondrialrespiratorychaincomplexⅠ/ⅢfunctioninducedthedysfunctionofGSK-3β-inducedelectrontransportchain,naturallydisturbingtheROSlevel.Inaddition,theexpressionofNOX3andNOX4wassignificantlyup-regulated,whichaffectedthegenerationofROSandassociatedwiththemetastasisofbreastcancer.Furthermore,wefoundthattheexpressionofpSer535-eIF2BpromotedtheexpressionofNKG2Dligands(Mult-1andRae1)followingbyexpressionofpSer9-GSK-3βandgenerationofROS.Conclusions:ThePI3K/Akt/GSK-3β/ROS/eIF2BpathwaycouldregulateNKcellactivityandsensitivityoftumorcellstoNKcells,whichresultedinbreastcancergrowthandlungmetastasis.Thus,GSK-3βisapromisingtargetofanti-tumortherapy.

简介：目的探讨膀胱癌组织中线粒体融合蛋白2(MFN2)、Bmi-1蛋白表达情况及临床意义。方法选取膀胱癌组织标本80例,同时另选取正常膀胱组织标本80例作为对照。采用免疫组化染色法检测并比较膀胱癌组织和正常膀胱组织中MFN2、Bmi-1蛋白表达情况,分析MFN2、Bmi-1蛋白表达与膀胱癌患者临床特征的关系,以及膀胱癌组织中MFN2蛋白与Bmi-1蛋白表达的相关性。结果膀胱癌组织中MFN2和Bmi-1蛋白的阳性表达率分别为52.50%和61.25%,高于正常膀胱组织的12.50%和17.50%(P﹤0.05);TNM分期为Ⅰ~Ⅱ期的患者膀胱癌组织中MFN2蛋白的阳性表达率为67.27%,明显高于TNM分期为Ⅲ期患者的20.00%(P﹤0.01);肿瘤直径﹥3cm、TNM分期为Ⅲ期的患者膀胱癌组织中Bmi-1蛋白的阳性表达率分别为96.15%和88.00%,均明显高于肿瘤直径≤3cm、TNM分期为Ⅰ~Ⅱ期患者的44.44%、49.09%(P﹤0.01);膀胱癌组织中MFN2蛋白与Bmi-1蛋白的表达情况呈负相关(r=-0.602,P﹤0.01)。结论膀胱癌组织中MFN2、Bmi-1蛋白表达水平较高;MFN2蛋白阳性表达情况与TNM分期有关,Bmi-1蛋白阳性表达情况与肿瘤直径、TNM分期有关;MFN2蛋白与Bmi-1蛋白的表达情况呈负相关。

简介：目的探讨热休克转录因子1(HSF1)在不同分子分型乳腺癌组织中的表达及其与预后的关系。方法回顾性分析364例乳腺癌患者的临床资料,依据根据雌激素受体(ER)、孕激素受体(PR)和人表皮生长因子受体2(HER2)的表达水平差异,分为LuminalA型组(n=100),LuminalB型组(n=120),HER2型组(n=54),三阴性组(n=90)。采用免疫组织化学染色法检测各组患者乳腺癌组织中HSF1、热休克蛋白70(HSP70)、抗凋亡蛋白B细胞淋巴瘤因子-2(Bcl-2)、促凋亡蛋白Bcl-2相关X蛋白(BAX)、巨噬细胞移动抑制因子(MIF)的表达情况,并分析HSF1的表达与HSP70、Bcl-2、BAX和MIF的相关性,比较HSF1阳性表达与阴性表达患者的5年生存率。结果LuminalA型组和LuminalB型组患者乳腺癌组织中HSF1、HSP70、Bcl-2和MIF的阳性表达率均低于HER2型和三阴性组患者,BAX阳性表达率均高于HER2型组和三阴性组患者(P﹤0.05)。乳腺癌组织中HSF1与HSP70、Bcl-2和MIF的表达呈正相关(P﹤0.05),但与BAX的表达呈负相关(P﹤0.05)。HSF1阴性表达患者的5年生存率为54.24%,明显高于HSF1阳性表达患者的18.29%(P﹤0.01)。结论HSF1在HER2型和三阴性乳腺癌中的表达水平较高,且HSF1阳性表达患者的预后较差。

简介：目的明确鼻咽癌铂类同期放化疗疗效与肿瘤组织中DNA切除修复交叉互补基因1(excisionrepaircross-complementinggene1,ERCC1)mRNA表达水平的关系。方法选取2012年6月至2013年6月在广西医科大学第四附属医院肿瘤科经活检诊断为鼻咽低分化鳞癌的初治患者,放化疗前通过RT-PCR测量肿瘤组织中ERCC1mRNA表达水平,所有患者均接受顺铂单药同期放化疗,治疗结束3个月后复查,评估疗效,分析铂类药物化疗短期疗效与ERCC1mRNA表达水平间的关系。结果共78例患者纳入研究且可评价,其中完全缓解占65.38%,部分缓解占24.36%,疾病稳定占5.13%,疾病进展占5.13%;有效率89.74%,疾病控制率94.87%。ERCC1mRNA在肿瘤组织的平均表达水平为1.216,患者的年龄、性别和TNM分期与ERCC1mRNA表达水平间差异均无统计学意义(P>0.05)。放化疗前肿瘤组织中ERCC1mRNA低表达的治疗有效率明显高于高表达者(P<0.05)。结论ERCClmRNA在鼻咽癌组织中的表达水平与铂类同期放化疗短期疗效间呈负相关关系,可预测铂类同期放化疗治疗局部晚期鼻咽癌的效果。