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50 个结果
  • 简介:Severeacuterespiratorysyndrome(SARS)isaseriousandfatalinfectiousdiseasecausedbySARScoronavirus(SARS-Cov),anovelhumancoronavirus.SARS-Covinfectionstimulatescytokines(e.g.,IL-10,IFN-γ,IL-1,etc.)expressiondramatically,andTlymphocytesandtheirsubsetsCD4+andCD8+Tcellsaredecreasedafteronsetofthedisease.SARS-specificIgGantibodyisgeneratedinthesecondweekandpersistsforalongtime,whereasIgMisexpressedtransiently.ThespikeproteinandneucleocapsidproteinaremostabundantinSARS-Covandcontributedominantlytotheantibodyproductionduringthecourseofdisease.Spikeprotein,especiallytheACE-2bindingregion(318-510aa)iscapableofproducingneutralizingantibodytoSARS-Cov.NeucleocapsidproteininducesprotectivespecificCTLtoSARS-Cov.Therefore,applicationswithspikesubunit,neucleocapsidsubunitaswellasinactivatedSARS-CovarethreeprospectivevaccinationstrategiesforSARS.

  • 标签: SARS 免疫性 疫苗 冠状病毒 免疫学
  • 简介:最近的研究揭开了激活主人的二个发信号小径对病毒的感染的天生的免疫。小径之一利用像使用费的受体(TLR)的成员检测通过endocytosis进入内涵体的病毒的家庭。TLR小径通过最终导致抄写因素NF-kappaB,IRF3和IRF7的激活的几发信号的蛋白质导致干扰素生产。另外的抗病毒的小径为细胞内部的病毒的双strandedRNA把RNAhelicaseRIG-I用作受体。RIG-I通过最近识别的适配器蛋白质MAVS激活NF-kappaB和IRF,包含居住在mitochondrial膜的蛋白质的一个卡片领域。MAVS为抗病毒的天生的免疫是必要的,但是它也用作丙肝病毒(HCV)的一个目标,它采用病毒的朊酶劈开MAVS离开线粒体,从而允许HCV逃离主人免疫系统。

  • 标签: 先天性免疫机制 抗病毒作用 生理学 细胞免疫
  • 简介:效法传统的发展遗传,在最后15年的研究证明了对细菌和真菌的天生的免疫主要被二条NF-B信号转导小径,使用费和IMD管理。抗病毒的免疫看起来源自RNA干扰,而对parasitoids的抵抗被使用费发信号授与。规章的机制和大多数果蝇免疫基因的注解从功能的genomic导出的这些post-transcriptional的鉴定用“模型”学习病原体,未经触动的动物和房间线。D。当他们变得识别,melanogaster主人因此提供了能被用来学习回答到自然微生物引起、后生动物的病原体,以及测试选择和进化变化的想法的核心信息。这些分析具有到在主人抵抗理解另外的昆虫主人病原体相互作用的机制和变化的决定因素的一般重要性。

  • 标签: 免疫力 果蝇 基因组 NF-ΚB
  • 简介:Anticancerimmunotherapyhasundergonealongevolvingjourneyfordecades,andhasbeendramaticallyappliedtomainstreamtreatmentsinoncologyinrecent5years.Thisprogressrepresentsanadvancedmilestonefollowingcytotoxicmedicineandtargetedtherapy.Cellularimmunityplaysapivotalroleintheimmuneresponsesofhoststotumorantigens.Suchimmunityisnotablysuppressedduringneoplasticprogressionduetoimmuno-editingprocesses.Cellularimmunitycanalsobeselectivelyreactivatedtocombatmalignancieswhileexploitingtheadvantagesofcontemporaryscientificbreakthroughsinmolecularimmunologyandgeneticengineering.Therapidadvancementofcellularimmunity-basedtherapeuticapproacheshasachievedhighefficacyincertaincancerpatients.Consequently,thelandscapeofoncologicmedicineandpharmaceuticalinnovationhastransformedrecently.Inthisregard,wepresentacomprehensiveupdateonclinicallyestablishedanti-cancertreatmentswithcellimmunityaugmentationasthemajormechanismofaction.

  • 标签: 肿瘤治疗 免疫增强 细胞毒 细胞免疫 分子免疫学 靶向治疗
  • 简介:AclassicalfunctionofC1qistobindimmunecomplexesandinitiatecomplementactivationproducingmembranelyticcomplexes,opsoninsandanaphylatoxins.ThisclassicalpathwayofcomplementactivationisalsoelicitedwhenC1qbindssomeotherligands.Besidescomplementactivation,C1qalsoregulatescelldifferentiation,adhesion,migration,activationandsurvival.C1qdeficiencyisassociatedwithautoimmunityaswellasincreasedsusceptibilitytoinfections.Inthisarticle,wediscussthebasicpropertiesofC1q,itsexpression,andclassicalandregulatoryfunctions.

  • 标签: 调整模式 免疫系统 疾病 抗体
  • 简介:昆虫免疫者机制的调查有关天生的免疫提供重要信息,在许多,方面它在动物被保存。这是昆虫用作模型有机体学习人的病原体的毒力机制的原因之一。从进化观点,我们也关于主人病原体相互作用和有机体的改编了解很多到生活的条件。另外,导出昆虫的抗菌剂和抗真菌的肽和蛋白质为他们作为抗菌素的选择要使用的潜力被考虑。当果蝇melanogaster被用来学习昆虫免疫的基因方面时,街郎mellonella为生物化学的研究担任一个好模型。给昆虫的尺寸,容易作为许多免疫者相关的多肽的来源获得hemolymph和另外的纸巾是可能的。这篇评论文章有关G总结我们的知识。mellonella免疫。描绘最好的免疫者相关的蛋白质和肽被记起,他们的短特征被给。在mRNA水平识别的一些另外的蛋白质也被提及。象杆菌thuringiensis和Beauveriabassiana那样的街郎自然病原体使用的传染线路也在主人病原体相互作用的上下文被描述。最后,G的粘性。不能生活、关於生命的因素影响的mellonella免疫者反应被描述。

  • 标签: 杆菌 thuringiensis Beauveria bassiana 防卫蛋白质和肽 街郎 mellonella 昆虫免疫
  • 简介:染色体序列的增加的可获得性和为基因表示介绍和功能的描述的高产量的技术的开发正在转变天生的免疫的学习和昆虫生物学的另外的区域。已经,功能的genomic途径在蚊子免疫反应的描述启用了量进展到疟疾寄生虫感染,并且类似的高产量的功能的genomic另外的向量病原体相互作用学习在不久的将来能被期望。应用程序基于microarray并且另外的表达式分析提供能被用来识别是在暴露之上调整到病原体的各种各样的类的差别的昆虫免疫系统部件的染色体宽的transcriptional侧面,包括人和动物疾病的许多重要etiologic代理人。角色感染应答或通过比较genomic途径识别的另外的候选人免疫者基因当时能是机能上地描绘了,任何一个体内,例如,在使用的成年蚊子,或试管内,房间排队。在人的病原体的大多数昆虫向量,细菌线transgenesis仍然是技术上困难的并且多重转基因的线的维护要求的逻辑联盟者。因而,短暂RNA干扰(RNAi)调停了基因沉默很快为候选人的功能的描述成为了选择的方法天生的有免疫力的基因。用RNAi与试金一起介绍决定基因功能,并且识别规章的小径的transcriptional的强大的联合,和下游的房间决定蛋白质本地化和相互作用的生物途径,将继续提供新奇卓见进昆虫的角色在许多向量病原体相互作用的天生的免疫。这里,我们在昆虫病向量在天生的免疫的功能的基因组学研究考察进展,在过去的十年,与到疟疾感染的疟蚊属蚊子和它的回答的一个特别焦点。

  • 标签: 疟蚊 免疫力 蚊子 疟疾 寄生生物
  • 简介:疟疾继续在今天的世界上施加巨大的使用费,引起约4亿个盒子并且每年在1-2之间杀死百万个人。大多数疟疾负担在非洲由国家被忍受。为这个原因,为在这个大陆的疟疾的主要向量,疟蚊属gambiae,在强烈学习下面。随这重要向量的草稿顺序的结束,努力是在进行之中的开发新奇控制策略。一个有希望的区域是利用这蚊子种的天生的免疫的力量堵住疟疾寄生虫的传播。最近的研究表明了那使用费和Imd发信号小径和另外的免疫相关的基因(编码蛋白质可能在识别或作为受动器分子工作)在天生的免疫的二只不同手臂起重要作用:感染紧张的水平和变形体oocysts的melanization。在未来的挑战是理解这些不同基因的功能怎么对疟疾寄生虫在防卫被协调,并且如果天生的免疫的不同手臂是跨regulated或协调。

  • 标签: 疟蚊 免疫力 疟疾 寄生生物
  • 简介:这份报纸首先建议2k变量的一个无限的班有高非线性和高代数学的度的布尔功能。然后,平衡布尔功能的一个无限的班被修改上述布尔功能建议。平衡布尔函数的这个类有最佳的代数学的度和高非线性。两个班基于一个将军有最佳的代数学的免疫组合推测。

  • 标签: 布尔函数 代数 组合条件 免疫 非线性 无限级
  • 简介:Anovelalgorithm,theImmuneQuantum-inspiredGeneticAlgorithm(IQGA),isproposedbyintroducingimmuneconceptsandmethodsintoQuantum-inspiredGeneticAlgorithm(QGA).WiththeconditionofpreservingQGA'sadvantages,IQGAutilizesthecharacteristicsandknowledgeinthependingproblemsforrestrainingtherepeatedandineffectiveoperationsduringevolution,soastoimprovethealgorithmefficiency.TheexperimentalresultsoftheknapsackproblemshowthattheperformanceofIQGAissuperiortotheConventionalGeneticAlgorithm(CGA),theImmuneGeneticAlgorithm(IGA)andQGA.

  • 标签: 遗传算法 QGA 免疫算子 渐缩问题
  • 简介:肿瘤immunoevasion是肿瘤房间在获得能力围绕主人免疫系统并且利用protumorigenic发炎的癌症immunosurveillance的一个先进阶段。T房间免疫球蛋白粘蛋白(提姆)基因家庭成员作为调整多重有免疫力的反应阶段并且维持有免疫力的动态平衡的批评检查点蛋白质出现了。积累的证据证明肿瘤房间利用提姆基因家庭成员躲避immunosurveillance,而提姆基因家庭成员便于发炎相关的肿瘤前进的预防。因此,在肿瘤前进澄清提姆基因家庭成员的相对贡献的全面分析可以阐明在癌症病人的immunosurveillance系统。

  • 标签: 肿瘤免疫 基因家族 TIM 肿瘤细胞 免疫球蛋白 免疫系统
  • 简介:AbstractSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viruses spread unscrupulously virtually every corner on the planet in a very quick speed leading to an unprecedented world pandemic of COVID-19 claiming a great many of people’s life. Paramount importance has been given to the studies on the virus itself including genomic variation and viron structure, as well as cell entry pathway and tissue residence. Other than that, to learn the main characteristic of host immunity responding to SARS-CoV-2 infection is an eminent task for restraining virus and controlling disease progress. Beside antibody production in response to SARS-CoV-2 infection, host cellular immunity plays an indispensable role in impeding virus replication and expansion at various stages of COVID-19 disease. In this review, we summarized the recent knowledge regarding the aberrant regulation and dysfunction of multiple immune cells during SARS-CoV-2 infection. This includes the dysregulation of immune cell number, Th polarity, cytokine storm they implicated with, as well as cell function exhaustion after chronic virus stimulation. Notwithstanding that many obstacles remain to be overcome, studies on immunotherapy for COVID-19 treatment based on the known features of host immunity in response to SARS-CoV-2 infection offer us tangible benefits and hope for making this SARS-CoV-2 pandemic under control.

  • 标签: SARS-CoV-2 COVID-19 Innate immune T-cell exhaustion Cytokine storm Immunotherapy
  • 简介:MyrnaBlythspentmorethan20yearsasatopmagazineeditor.Sosheknowsathingortwoabouthowthemediausesstress,fearandtheultimatelyfruitlesspursuitofperfectiontosellstories.Sheofferssometipsabouthownottogetspunbywhatyouseeorread.

  • 标签: 大学英语 双语阅读 对照读物 时文阅读
  • 简介:AbstractAntimicrobial peptides (AMPs) are small molecules produced by a myriad of cells and play important roles not only in protecting against infections and sustaining skin barrier homeostasis but also in contributing to immune dysregulation under pathological conditions. Recently, increasing evidence has indicated that AMPs, including cathelicidin (LL-37), human β-defensins, S100 proteins, lipocalin 2, and RNase 7, are highly expressed in psoriatic skin lesions. These peptides broadly regulate immunity by interacting with various immune cells and linking innate and adaptive immune responses during the progression of psoriasis. In this review, we summarize the recent findings regarding AMPs in the pathogenesis of psoriasis with a main focus on their immunomodulatory abilities.

  • 标签: Antimicrobial peptides Psoriasis Immune response Inflammation
  • 简介:AlgebraicimmunityisanimportantcryptographicpropertyofBooleanfunctions.Inthispaper,odd-variablebalancedBooleanfunctionswithoptimalalgebraicimmunityareobtainedbym-sequenceandconsequently,wegetbaseswithspecialconstructionsofvectorspace.Furthermore,throughswappingsomevectorsofthesetwobases,weestablishallkindsofodd-variablebalancedBooleanfunctionswithoptimalalgebraicimmunity.

  • 标签: 布尔函数 免疫 代数 可变 向量空间 M序列
  • 简介:Thispaperfocusesoninvestigatingimmunologicalprinciplesindesigningamulti-agentsecurityarchitectureforintrusiondetectionandresponseinmobileadhocnetworks.Inthisapproach,theimmunity-basedagentsmonitorthesituationinthenetwork.Theseagentscantakeappropriateactionsaccordingtotheunderlyingsecuritypolicies.Specifically,theiractivitiesarecoordinatedinahierarchicalfashionwhilesensing,communicating,decisionandgeneratingresponses.Suchanagentcanlearnandadapttoitsenvironmentdynamicallyandcandetectbothknownandunknownintrusions.Theproposedintrusiondetectionarchitectureisdesignedtobeflexible,extendible,andadaptablethatcanperformreal-timemonitoring.Thispaperprovidestheconceptualviewandageneralframeworkoftheproposedsystem.Intheend,thearchitectureisillustratedbyanexampletoshowitcanpreventtheattackefficiently.

  • 标签: 免疫系统 入侵检测 移动代理 移动通信网络 网络安全
  • 简介:Tumor-targetingantibodieswereinitiallydefinedasagroupoftherapeuticmonoclonalantibodies(mAb)thatrecognizetumor-specificmembraneproteins,blockcellsignaling,andinducetumor-killingthroughFc-driveninnateimmuneresponses.However,inthepastdecade,ampleevidencehasshownthattumor-targetingmAb(TTmAb)eradicatestumorcellsviaactivationofcytotoxicTcells(CTLs).Inthisreview,wespecificallyfocusonhowTTmAbsinduceadaptiveanti-tumorimmunityanditspotentialincombinationtherapywithimmunecytokines,checkpointblockade,radiation,andenzymetargetedsmallmoleculedrugs.ExploringthemechanismsofthesepreclinicalstudiesandretrospectiveclinicaldatawillsignificantlybenefitthedevelopmentofhighlyefficientandspecificTTmAb-orientedanti-tumorremedies.

  • 标签: TUMOR antigen TARGETING antibody INNATE IMMUNITY