学科分类
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32 个结果
  • 简介:摘要以学生发展为本,创新教学模式,改变传统的“班级制”“填鸭式”的教学模式,从传统的“line”式教学模式向班级+小组的“cell”式教学模式发展,实现以学定教、快乐学习的目标,使学生在课堂上幸福的拔节。

  • 标签: 创新教学 &ldquo line&rdquo &ldquo cell&rdquo 课堂的主人 班级+小组
  • 简介:(PGAM1)Phosphoglycerate变位酶1是在许多癌症类型的upregulated并且在房间增长,移植,侵略,和apoptosis包含。然而,在PGAM1和前列腺癌症之间的关系糟糕被理解。现在的学习与正常前列腺纸巾相比在前列腺癌症纸巾在PGAM1表示调查了变化并且检验了有clinicopathological变量的PGAM1和它的关系的细胞的函数。Immunohistochemistry并且西方的弄污表明那PGAM1表情是在前列腺癌症纸巾和房间线的upregulated。PGAM1表示与格利森分数被联系(P=0.01)并且T阶段(P=0.009)。由在PC-3和22Rv1前列腺癌症房间线的siRNA的PGAM1击倒禁止的房间增长,移植,和侵略和提高的癌症房间apoptosis。在一个裸体老鼠异种皮移植模特儿,PGAM1击倒的显著地压制的肿瘤生长。PGAM1的删除导致了MMP-2的Bcl-2,Bax的提高的表示,caspases-3和抑制的减少的表示和MMP-9表示。我们的结果显示PGAM1可以在前列腺癌症前进和攻击性起一个重要作用,并且它可能为前列腺癌症是差的预后和一个潜在的治疗学的目标的一个珍贵标记。

  • 标签: 细胞生长 前列腺 变位酶 癌症 移植 apoptosis
  • 简介:Cisplatin,awidelyusedanticancerdrug,damageshaircellsincochlearorganotypicculturesatlowdoses,butparadoxicallycauseslittledamageathighdosesresultinginaU-shapeddose-responsefunction.Todetermineifthecisplatindose-responsefunctionforvestibularhaircellsfollowsasimilarpattern,wetreatedvestibularorganotypiccultureswithdosesofcisplatinrangingfrom10to1000μM.Vestibularhaircelllesionsprogressivelyincreasedasthedoseofcisplatinincreasedwithmaximumdamageoccurringaround50–100μM,butthelesionsprogressivelydecreasedathigherdosesresultinginlittlehaircelllossat1000μM.TheU-shapeddoseresponsefunctionforcisplatin-treatedvestibularhaircellsincultureappearstoberegulatedbycoppertransporters,Ctr1,ATP7AandATP7B,thatdose-dependentlyregulatetheuptake,sequestrationandextrusionofcisplatin.

  • 标签: CISPLATIN OTOTOXICITY Copper transporters VESTIBULAR ORGANOTYPIC
  • 简介:Objective:Avarietyofionchannelshavebeenimplicatedinbreastcancerproliferationandmetastasis.VoltagegatedK+(Kv)channelsnotonlycauserepolarizationinexcitablecells,butarealsoinvolvedinmultiplecellularfunctionsinnon-excitablecells.InthisstudyweinvestigatedtheroleofKvchannelsinmigrationofBT474breastcancercells.Methods:Transwelltechniquewasusedtoseparatemigratorycellsfromnon-migratoryonesandthesetwogroupsofcellsweresubjecttoelectrophysiologicalexaminationsandmicrofluorimetricmeasurementsforcytosolicCa2+.CellmigrationwasexaminedintheabsenceorpresenceofKvchannelblockers.Results:Whencomparedwithnon-migratorycells,migratorycellshadmuchhigherKvcurrentdensities,butratherunexpectedly,moredepolarizedmembranepotentialandreducedCa2+influx.Reversetranscriptasepolymerasechainreaction(RT-PCR)analysisrevealedthepresenceofKv1.1,Kv1.3,Kv1.5,Kv2.1,Kv3.3,Kv3.4andKv4.3channels.Cellmigrationwasmarkedlyinhibitedbytetraethylammonium(TEA),adelayedrectifierKvchannelblocker,butnotby4-aminopyridine,anA-typeKvchannelblocker.Conclusions:Takentogether,ourresultsshowthatincreasedKvchannelexpressionplayedaroleinBT474cellmigration,andKvchannelscouldbeconsideredasbiomarkersorpotentialtherapeutictargetsforbreastcancermetastasis.Themechanism(s)bywhichKvchannelsenhancedmigrationappearedunrelatedtomembranehyperpolarizationandCa2+influx.

  • 标签: BREAST cancer Kv CHANNELS migration biomarkers
  • 简介:AIMToevaluatetheclinicaloutcomesofpatientswhounderwentendoscopicsubmucosaltunneldissection(ESTD)foresophagealsquamouscellcarcinoma(ESCC)andprecancerouslesions.METHODSESTDwasperformedin289patients.Theclinicaloutcomesofthepatientsandpathologicalfeaturesofthelesionswereretrospectivelyreviewed.RESULTSAtotalof311lesionswereincludedintheanalysis.Theenblocrate,completeresectionrate,andcurativeresectionratewere99.04%,81.28%,and78.46%,respectively.TheESTDproceduretimewas102.4±35.1min,themeanhospitalizationtimewas10.3±2.8d,andtheaverageexpenditurewas3766.5±846.5dollars.Theintraoperativebleedingratewas6.43%,thepostoperativebleedingratewas1.61%,theperforationratewas1.93%,andthepostoperativeinfectionratewas9.65%.Esophagealstrictureandpositivemarginweresevereadverseevents,withanincidencerateof14.79%and15.76%,respectively.Notumorrecurrenceoccurredduringthefollow-upperiod.CONCLUSIONESTDforESCCandprecancerouslesionsisfeasibleandrelativelysafe,butforlargemucosallesions,therateofesophagealstrictureandpositivemarginishigh.

  • 标签: SUPERFICIAL ESOPHAGEAL squamous cell carcinoma ENDOSCOPIC
  • 简介:AIMTo评估人的透镜上皮房间apoptosis并且对femtosecond激光在有到N3的N2的帮助奔流外科(FLACS).METHODSSixty奔流病人根据LOCSIII上演的femtosecond激光导致的间充质的转变(EMT)上皮在这研究被注册并且随机把组划分了成三:FLACS1组(由有LenSx的FLACS的奔流外科),FLACS2组(由有LensAR的FLACS的奔流外科)和用手的组(由phacoemulsification的奔流外科)。在二个FLACS组的病人由LenSx或LensAR激光系统执行了前面的capsulotomy。在用手的组的病人被执行连续曲线的capsulorrhexis(CCC)手工地。恰好在从眼睛移动了以后,前面的囊被修理。在奔流surgery.RESULTSThe囊优势被病理学的染色在用手的capsulotomy在二个FLACS组和光滑的边看不规则和粗糙以后,染色的Hematoxylin-eosine,immunofluorescence染色和即时PCR被执行以便观察人的透镜上皮房间变化。有部分肿、破坏的原子核的房间配置的不规则在二个FLACS组被观察。Femtosecond激光能比手工地执行的CCC在人的透镜上皮房间导致显著地更高的房间apoptosis(P<0.05)。透镜上皮房间apoptosis根据皮尔森关联分析与femtosecond激光持续时间被相关。在二个FLACS组的减少的N-cadherin表示,alpha-SMA和FSP-1水平证明房间EMT.CONCLUSIONFemtosecond激光的抑制可以影响在剥的中央透镜囊下面的透镜上皮房间的apoptosis和EMT。

  • 标签: femtosecond 激光帮助了奔流外科 透镜上皮房间 apoptosis 上皮的间充质的转变
  • 简介:Objective:Smallcelllungcarcinoma(SCLC)isconsideredoneofthemostaggressivetypesoflungcancerduetoitsrapidgrowthandearlymetastasis.NotumormarkersortherapeutictargetshavebeendemonstratedtobespecificoreffectiveinSCLCtodate.ThisstudyaimstoevaluatethepotentialofFlotillin1(Flot1)asatargetofSCLCtreatment.Methods:Flot1expressionlevelinthetissueofSCLCandothertissueoflungdiseasewasdetectedusingimmunohistochemicalstaining.TranswellandMatrigelassayswereemployedtoexaminemigrationandinvasionofcancercells.FlowcytometryandxCELLigencesystemwereusedtoevaluatecellapoptosisandcellviability,respectively.ExpressionlevelsofFlot1,epithelialmesenchymaltransition(EMT)markerE-cadherin,vimentin,cyclinD1,TGF-β-Smad2/3,andp-AKTwereexaminedusingWesternblot.Furthermore,xenografttumorinnudemicewasusedtoevaluatethegrowthandmetastasisofNCI-H446cellsinvivo.Results:OurresultsdemonstratedthatFlot1ishighlyexpressedinSCLCsamplesandthatitsexpressioncorrelatesstronglywithclinicalstage,distantmetastasis,andpoorsurvival.TheknockdownofFlot1decreasedthegrowth,migration,andinvasivenessofSCLCcellsandreversedEMTphenotypeinvitroandinvivo,whileenhancedFlot1expressionexhibitedtheoppositebehavior.GeneexpressionprofileanalysisdemonstratedthatFlot1-regulatedgenesfrequentlymappedtotheAKTandTGF-β-Smad2/3pathways.OurresultsfurtherrevealedthatFlot1affectedtheprogressionofSCLCviaregulationofEMTprogression.Conclusions:ThesefindingsindicatedanoncogenicroleofFlot1viapromotingEMTinSCLCandsuggesteditspotentialasatumormarkerandprognosticindicator.

  • 标签: Flotillin1 small cell LUNG cancer EMT