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500 个结果
  • 简介:可移植的试验性的肿瘤模型被构造对肿瘤复发和转移学习recombinant人interleukin-15(rhIL-15)的活动。结果证明那肿瘤小瘤形成被延迟,肿瘤生长与rhIL-15在处理以后在LA795肺腺癌的下的肿瘤模型被禁止,并且与rhIL-15对待的T739忍受肿瘤的老鼠的幸存率比与盐的任何一个或与rhIL-2的一样的剂量对待的老鼠的高得多。这indicats那rhIL-15antitumor最好在一样的剂量水平比rhIL-2完成。在一些,rhIL-15对待老鼠,皮下地接种的肿瘤房间被根除,没有肿瘤形成甚至在肿瘤以后的138天房间接种。没有肿瘤的老鼠与实时肿瘤房间被重新质问,没有肿瘤这些老鼠在所有在下列二个月内重新发生,显示全身的免疫开发了的那长持续的antitumor。肿瘤复发和转移与rhIL-15,然而并非与rhIL-2的一样的剂量在处理以后显著地被禁止,这也被显示出,在LA795肺腺癌的皮下地并且静脉内地传播的肿瘤模型。同时,splenocytes的CTL和NK房间活动从与任何一个rhIL-15被对待的忍受肿瘤的老鼠获得了或rhIL-2是显著地提高的两个。然而,CTL和NK房间活动的改进在rhIL-15是更重要的在rhIL-2比那对待老鼠对待的老鼠。这建议在vivo的rhIL-15的反肿瘤效果被在肿瘤免疫者反应提高CTL和NK房间活动完成。细胞与分子的免疫学。2008;5(3):189-196。

  • 标签: rhIL-15 LA795 可移植治疗 肿瘤治疗 癌细胞转移
  • 简介:Atpresent,theneuropathologicalmechanismsandtheplasticchangesofbraincognitivefunctioninpatentswithfrontlobetumorremainunclear,moststudiesjustfocusedonglobalmeasuresofbrainfunctionalconnectivitywithoutconsideringthetimecorrelationinthedifferentregionsofthebrain.Thisstudyaimstoinvestigatebraincognitivealterationsandfunctionalplasticityinpatientswithfrontlobetumoratresting-statebyconductingfunctionalconnectivitydensity(FCD)mappingandgrangercausalityanalysis(GCA).Firstly,FCDmappingwasusedtoextractabnormalfunctionalconnectivity(FC)ofpatientswithfrontallobetumor,andanalyzedalteredbrainFCinbothshort-andlong-rangeFCD.Then,thevoxel-wiseGCAmethodwasusedtoanalyzethecausalrelationshipbetweenalteredFCregionsandotherregionsinordertodetectthetimecorrelationbetweenregionsofinterest(ROI)andrevealthedirectionofinformationflowbetweenbrainROIs.Itwasfoundthatpatientshadincreasedshort-rangeFCDinmotorandspaceattentionfunctionareas,hadincreasedshort-andlong-rangeFCDsbothinTemporalandInsula,andthecausalcoefficientswerechangedobviouslyinTemporalandFrontal.Theresultsshowthatthereisafunctionalplasticityinspaceattentionfunctionareas.TemporalandInsulaareaffectedbytumorinfrontallobe,andfunctionalreorganizationappearsinsideTemporal.

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  • 简介:这篇论文由脉搏感到在肿瘤的处理把简短介绍给了教授于的经验,它都通过整个针灸实践被进行。Wehope医生将在尝试在未来在脉搏诊断上做进一步、深入的研究揭示在脉搏和针灸之间的内在的关系提高临床的功效并且因此在肿瘤的治疗开创针灸的更宽广的空间。

  • 标签: 临床经验 肿瘤 针刺治疗 中医治疗
  • 简介:Objective:TumorassociatedantigenencodinggeneHCA520(AF146019)wasidentifiedbyscreeningahumanhepatocellularcarcinomaexpressingcDNAlibraryusingSEREXtechnique.InthisexperimentwestudiedtheeffectofHCA520oncellproliferationandapoptosis.Methods:GeneHCA520wasgainedbyPCRandtransfectedinto293cells.ThestableexpressioncellswereobtainedbyG418selection.Thecellproliferationwasmeasuredby[3H]-TdRuptakeandapoptosisassaywasmeasuredbyFACS.Results:EukaryoticexpressionplasmidpcDNA3-HCA520wasconstructedanditsstabletransfectantswereobtained.OverexpressionofHCA520inhibitedthecellproliferationandenhancedcellapoptosisafterserumdeprivation.Conclusion:HCA520isanoveltumorassociatedantigenthatcanaffectcellproliferationandapoptosis.

  • 标签: HCA520 肿瘤相关抗原 细胞增殖 细胞凋亡 RT-PCR
  • 简介:T-LYMPHOCYTEMEDIATEDTUMORCELLDESTRUCTIONINVIVOASSOCIATINGWITHASPECIFICFEATURE OF APOPTOSISYuDa鱼达;YangHua杨骅;ZhengShu郑树;WangXia...

  • 标签: NUDE mice Human COLON cancer IMMUNE
  • 简介:Perivascular上皮状的房间肿瘤(PEComas)是稀罕的间充质的瘤的一个家庭。PEComas,镇静上皮状并且锭子房间,有细胞的一样和immunohistochemical特征但是在不同内脏、软的织物地点被发现。这里,我们报导组织学并且PEComa的一个案例的immunohistochemical特征在一个男病人的骨盆的内脏的腹膜限制了。病人与激进的外科被对待,并且好并且没有肿瘤复发,在后续上访问。

  • 标签: 细胞组成 文献综述 病例报告 上皮 血管 男性
  • 简介:Objective:Weinvestigatedthecorrelationbetweenthenumberofcirculatingtumorcells(CTCs)andwholebodymetabolictumorvolume(WBMTV)measuredby18F-fluorodeoxyglucose(FDG)positronemissiontomography/computedtomography(PET/CT).TheaimwastoevaluatethevalueoftheincorporationofCTCnumberandWBMTVintheprognosticpredictionofstageIIIsmall-celllungcancer(SCLC).Methods:Onehundredandtwenty-ninepatientswereenrolledinthisstudy.Allpatientsweretreatedwithfourcyclesofaplatinum-basedregimenandconcurrentchestirradiation,followedbyprophylacticcranialirradiation.BloodsamplesforCTCanalysiswereobtainedfrom112patientsbeforetheinitiationofchemotherapy(asabaseline),aftercycle1andaftercycle4.CTCsweremeasuredusingtheCELLSEARCH?system.ThepatientsunderwentpretreatmentFDGPET/CTWBMTV,whichincludedallmalignantlesions.TheSpearmanranktestwasusedtodeterminethecorrelationamongCTCcounts,WBMTVanddiseasestage.Overallsurvival(OS)andprogression-freesurvival(PFS)curveswereproducedusingtheKaplan-Meiermethod,andsurvivaldifferencesbetweengroupswereassessedbythelog-ranktest.Results:ThenumberofCTCsatbaselinedidnotcorrelatewithWBMTVbeforetheinitiationoftherapy(P=0.241).ThenumberofCTCsatbaselineandtheWBMTVbeforetheinitiationoftherapywereindependentrelevantfactorsforPFSandOS.Thesubgroupanalysis(GroupA:CTCcount>19.5andaWBMTV>266.5cm^3;GroupB:CTCcount>19.5andaWBMTV≤266.5cm^3;GroupC:CTCcount≤19.5andaWBMTV>266.5cm^3;GroupD:CTCcount≤19.5andaWBMTV≤266.5cm^3)showedthatthedifferenceswerestatisticallysignificantinthemedianPFS(GroupAvs.D,P<0.001;GroupBvs.D,P=0.018;GroupCvs.D,P=0.029)andinthemedianOS(GroupAvs.D,P<0.001;GroupBvs.D,P=0.012).Conclusions:CTCnumberandWBMTVarerelatedtoprogressionanddeathinpatientswithSCLC.TheincorporationofCTCnumberandWBMTVscanscanprovideadetailedprognosticpredictionforSCLC.

  • 标签: Small-cell lung cancer CIRCULATING TUMOR cell
  • 简介:Tworecentstudieshavediscoveredasurprisinglinkbetweenthreeseeminglydifferentclinicaldiseases:onethatdestroysbonemarrow,anotherthatpreventssundamagefrombeingrepaired,andathirdwhichcauseschildrentoshowsignsofagingextremelyearly.Ithasbeenfoundthatallthreediseasesarecausedbymutationsinthesamegene.Mutationscomeinanumberofdifferentflavors,

  • 标签: 临床疾病 基因 点突变 早期老化 DNA 骨髓
  • 简介:Alightbrownspotted-leafmutantofricewasisolatedfromanethanemethylsulfonate(EMS)-inducedIR64mutantbank.Themutant,designatedaslbsl1(lightbrownspotted-leaf1),displayedlightbrownspotinthewholegrowthperiodfromthefirstleaftotheflagleafundernaturalsummerfieldconditions.Agronomictraitsincludingplantheight,growthduration,numberoffilledgrainsperpanicle,seed-settingrateand1000-grainweightofthemutantweresignificantlyaffected.Geneticanalysisshowedthatthemutationwascontrolledbyasinglerecessivegene,tentativelynamedlbsl1(t),whichwasmappedtotheshortarmofchromosome6.Bydevelopingsimplesequencerepeat(SSR)markers,thegenewasfinallydelimitedtoanintervalof130kbbetweenmarkersRM586andRM588.Thelbsl1(t)geneislikelyanovelricespotted-leafgenesincenoothersimilargeneshavebeenidentifiednearthechromosomalregion.Thegeneticdataandrecombinationpopulationsprovidedwillfacilitatefurtherfine-mappingandcloningofthegene.

  • 标签: 基因定位 遗传分析 突变体 水稻 每穗实粒数 色斑
  • 简介:AbstractImportance:CHD2 is a member of the chromodomain helicase DNA-binding (CHD) family of proteins, which have important roles in the regulation of gene expression. Dysregulation of this protein may lead to various disorders.Objective:To delineate the genotypes and phenotypes of CHD2-related epilepsy.Methods:We analyzed the medical history, magnetic resonance imaging findings, and video-electroencephalogram recordings of 17 patients with CHD2 mutations in the Neurology Department of Beijing Children’s Hospital from June 2016 to June 2021.Results:Age at seizure onset ranged from 6 months to 10 years; the median age at onset was 4 years. Generalized tonic-clonic, myoclonic, eyelid myoclonic, atonic, atypical absence, myoclonic-atonic, and spasm seizures were observed. Ten of the 17 patients had multiple types of seizures. One patient exhibited photosensitivity epilepsy and one patient exhibited grid image-induced visual reflex epilepsy. Developmental disability was present in 14 patients, while autism features were present in five patients. Sixteen patients had de novo mutations of CHD2; one patient had an inherited variant. Eleven mutations were novel. One patient had two mutations; that patient exhibited development delay and refractory epilepsy. Seizures were controlled in eight patients, improved in seven patients, and resistant to treatment in two patients.Interpretation:Phenotype severity in patients with CHD2 variants ranged from drug-responsive seizures to severe epileptic encephalopathy. Most patients exhibited developmental disorders.

  • 标签: CHD2 Epilepsy Developmental disability Phenotype Seizure
  • 简介:组蛋白deacetylases(HDAC)并且嘘一乙酰转移ases(帽子)是其酶的活动控制蛋白质离氨酸残余的乙酰化状态的二抵抗酶家庭,尤其是在核心histones.Acetylation的N终端扩展包含的那些嘘通过它对染色质符合构造的影响影响基因表示。Inaddition,几non-histone蛋白质由特定的离氨酸残余的乙酰化状态在他们的稳定性或生物功能被调整。HDAC在大量的生物学过程干涉并且是部分一多每个成员在有它的专业化功能的蛋白质家庭。另外,HDAC活动紧通过指向的招募,protein-proteininteractions和translational以后修正被控制。房间周期前进,房间幸存和区别的控制在这些酶的最重要的角色之中。因为这些过程被恶意的转变影响,HDAC禁止者作为反被开发在癌症病人的肿瘤的药和areshowing鼓励功效。

  • 标签: 组蛋白脱乙酰酶 脱乙酰作用 组蛋白乙酰转移酶 基因转录 分子生物学 癌症
  • 简介:Objective:Toanalyzethechangesofgeneexpressioninphenylbutyrateinduceddifferentiationofgliomacells.Methods:Theexpressionlevelsof14000genesingliomacellsbeforeandafterinducementwithsodiumphenyl-butyratefor2hor6dayswereevaluatedbycDNAarraytechniqueandprovedbymulti-dotblotting.Results:expressionof98genesingliomacellsshowedchangesaftertheinducement.Somegenesinvolvedintranscriptionandtranslationandsomeoncogenesaredown-regulated,whilesomegeneinvolvedindifferentiationorapoptosisareup-regulated.18unknownexpressionsequencingtag(EST)changedtoo.Conclusion:Ageneexpressionprofileassociatedwithdifferentiationofgliomacellswasestablished.

  • 标签: 神经胶质瘤细胞 苯丁酸 诱导分化 基因表达 CDNA阵列
  • 简介:Objective:TodirectionallyclonetheomplgenefromChlamydiatrachomatis(Ct)FGenotypeontoaplasmidvectorforconstructingarudimentaryDNAvaccine.Methods:ThecompleteomplgenefromgenomicDNAofCtFgenotypewildspecieswasamplifiedwithprimersdesignedbycomputer.Therecombinantgenewasobtainedbyrestrictionenzymecutting,linkingthegenewiththeplasmidvectorinvitro,transformingtherecombinantgeneintobacteria,andextractingtheDNAfromthebacteria.Results:DNAextractingfromthebacteriawascomposedoftheimplgeneandplasmid,whichisidentifiedbythreemethodsofsingularrestrictiveenzymecutting,doublerestrictiveenzymecuttingandPCR.Conclusion:CloningoftheomplgenefromtheCtFgenotypemeansthatarudimentaryDNAvaccinewassuccessfullyconstructed.

  • 标签: 沙眼衣原体 F基因型 膜蛋白基因 分子克隆 DNA疫苗 基因重组
  • 简介:Calmodulinisacalciumbindingproteinthatmodulatestheactivityofdiversegroupsofproteinincludingsomeproteinkinase,adenylatecyclasesandATPase.HereweusethetotalDNAofSonneratiaparacaseolarisasthetemplateofthepolymerasechainreaction(PCR).ThePCRprimershavebeendesignedandsynthesizedaccordingtothe5-and3-terminaloligonucleotidesequencesofCalmodulingeneofplantsinGenbankandligatedwithcloningvectorpBsk(+).Therecombinantcloneshavebeenobtainedfromtheselectedmedium.TheresultsofDNAsequencesanalysisshowthatthenucleotidesequencesofORFsharemorethan85%homologiesascomparedwiththoseofcalmodulingenesofseveralotherplants.Similartoriceandapple,theORFisinterruptedbyanintronbehindthe75thnucleotide.

  • 标签: Sonneratiaparacaseolaris CALMODULIN gene POLYMERASE CHAIN REACTION
  • 简介:巨噬细胞在免疫和动态平衡起一个重要作用。在经由特定的受体的病原体识别之上,他们很快导致煽动性的回答。这个过程紧在transcriptional水平被控制。DNA有约束力的锌手指蛋白质CCCTC有约束力的因素(Ctcf)是远程的染色质相互作用的一个关键管理者并且协调在抄写因素和基因表达式进程之间的特定的通讯。在这研究,Ctcf基因被使用转基因的Cre-LoxP系统明确地在myeloid房间删除。在myeloid房间的Ctcf基因的有条件的删除在vivo导致了温和显型。显著地展出的Ctcf缺乏的老鼠减少了主要histocompatibility的表示在肝的建筑群(MHC)班II。Ctcf缺乏的巨噬细胞表明了正常表面显型和吞噬作用能力。在像使用费的受体(TLR)之上刺激,他们生产了支持inflammatorycytokinesIL-12和IL-6的正常层次,但是表明了一个强烈损害的能力生产肿瘤坏死因素(TNF)和IL-10,以及表示IL-10家庭成员IL-19,IL-20和IL-24。一起拿,我们的数据表明涉及巨噬细胞功能调整的Ctcf的一个角色。

  • 标签: DNA结合 巨噬细胞 基因表达 结合因子 控制 Toll样受体
  • 简介:AbstractObjective:It has recently been shown that the melanoma antigen gene (MAGE) family is expressed in various tumor cell lines but silent in normal tissues, except germ cell lines. Mageb4, a member of the MAGE family, is highly expressed in the testis and homologous in humans and mice. Whole-exome sequencing studies have identified Mageb4 as a possible X-linked cause of inherited male infertility. However, the function of Mageb4 protein remains largely unknown.Methods:Using clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated protein (Cas) 9 technology, we generated a Mageb4 knockout mouse model (Mageb4-/Y) to explore the role of this gene in spermatogenesis.Results:First, immunostaining of testicular cells showed that Mageb4 is localized in the cytoplasm of spermatogonia. Second, Mageb4-/Y male mice displayed significant increases in apoptosis. However, Mageb4-/Y male mice showed normal fertility, including normal sperm concentration, sperm motility, and testicular and epididymal histology.Conclusions:These findings suggest that, despite testis-exclusive expression, Mageb4 is dispensable for mouse spermatogenesis. Future research should focus on the role of this gene in apoptosis, aiming to provide clinical guidance regarding male infertility.

  • 标签: Clustered Regularly Interspaced Palindromic Repeats/CRISPR-Associated Protein 9 Mageb4 Male Infertility Spermatogenesis