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  • 简介:我们以前报导了那ONO-AE-248,选择EP3受体收缩筋,没有apoptosis和坏死的典型特征,被显示了引起嗜中性的死亡。然而,嗜中性的死亡的机制是不清楚的。由使用西方的弄污,流动cytometry(FACS)和扫描显微镜学(CLSM)的共焦的激光,我们调查了嗜中性的死亡的细胞的信号transduction小径。研究结果证明ONO-AE-248导致的嗜中性的死亡没显示出apoptosis的词法变化并且没与p38-MAPK的caspase-3,caspase-8,和phosphorylation的活动被联系。然而,线粒体transmembrane潜力的缺陷在房间死亡的过程期间被发现了。这些调查结果建议ONO-AE-248导致了non-apoptoticneutrophils通过的规划房间死亡部分线粒体发信号transduction小径。

  • 标签: 嗜中性粒细胞 线粒体 细胞死亡 受体
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  • 简介:Despitethehnpactofhighly-activemltiretroviraltherapy(HAART),manifestedasmarkedreductionsintheincidenceofopwrtunistieinfectionsinthelast5,years,respiratoryproblemsstillconstituteamajorburdenofdiseaseinthoseinfectedwithHIV.ReasonsforthisincludethelimitedavailabilityofHAART.worldwide,thefailureofsustainedviralsuppressioninupto50%ofpatientstakingHAART,failureofprophylaxisforspecificopportunisticinfectiorrs,andanincreasingnumberofpatientspresentingwithpreviouslymldiagnosedadvancedHIVinfection.

  • 标签: AIDS 强效抗反转录病毒治疗 HIV感染 细菌性肺炎 卡式肺囊虫性肺炎 结核病
  • 简介:CT120,anovelmembrane-associatedgeneimplicatedinlungcarcinogenesis,waspreviouslyidentifiedfromchromosome17pl3.3locus,ahotmutationspotinvolvedinhumanmalignancies.Inthepresentstudy,wefurtherdeterminedthatCT120ectopicexpressioncouldpromotecellproliferationactivityofNIH3T3cellsusingMTSassay,andmonitoredthedownstreameffectsofCT120inNIH3T3cellswithAtlasmousecDNAexpressionarrays.Among588knowngenes,133geneswerefoundtobeupregulatedordownregulatedbyCT120.Twomajorsignalingpathwaysinvolvedincellproliferation,cellsurvivalandanti-apoptosiswereoverexpressedandactivatedinresponsetoCT120:OneistheRaf/MEK/ErksignalcascadesandtheotheristhePI3K/Aktsignalcascades,suggestingthatCT120mightcontribute,atleastinpart,totheconstitutivelyactivationofErkandAktinhumanlungcanercells.Inaddition,sometumormetastasisassociatedgenescathepsinB,cathepsinD,cathepsinL,MMP-2/TIMP-2werealsoupregulatedbyCT120,uponwhichCT120mightbeinvolvedintumorinvasivenessandmetastasis.Inaddition,CT120mightplayanimportantroleintumorprogressionthroughmodulatingtheexpressionofsomecandidate“LungTumorProgression”genesincludingB-Raf,Rab-2,BAX,BAG-1,YB-1,andCdc42.

  • 标签: 肺癌 CT120基因 基因表达 细胞增殖 NIH3T3细胞 过表达
  • 简介:TodepictthedetailsthatCHOP(C/EBPhomologousprotein)regulatesautophagyandapoptosisinbreastcancercells,theexpressionofCHOPwasinhibitedbytransfectionwithsiRNAsequence.AsshowninFig.1,radiati-Fig.1CHOPinhibitionbysiRNAatmRNAandproteinlevelsafterradiation.onelicitedahigherexpressionofCHOPintheNCgroupcomparedwithcontrol.However,thishigherexpressionwassignificantlyinhibitedinthesiRNAgroup.

  • 标签: BREAST Cancer Cells
  • 简介:生长在代谢恶劣环境中的肿瘤细胞往往得到的血液,氧气和营养物质供应非常匮乏,而在接近40%的浸润性导管癌中均发现乙酰辅酶A合成酶2(ACSS2)具有过量高表达。在代谢应激情况下ACSS2促使肿瘤细胞将乙酸作为额外的营养来源使得肿瘤细胞可以适应恶劣代谢环境维持肿瘤细胞存活。近日,国际期刊Cancercell发表了德国和英国科学家共同合作的这一研究成果。研究人员指出,在许多肿瘤类型中都会有脂肪酸合成通路的选择性激活。

  • 标签: 乙酰辅酶A合成酶 肿瘤细胞 细胞存活 CELL 机制 2维
  • 简介:客观:为了改进倔强的脸中部的外部T房间non-Hodgkin鈥檚的功效,有L天门冬氨酰胺酶(LASP)的淋巴瘤(MPTC-NHL)基于抢救化疗。方法:有倔强的MPTC-NHL的21个病人被分析,11patients(LASP组)收到了L天门冬氨酰胺酶基于的抢救化疗由L天门冬氨酰胺酶,长春新碱和dexame-thosone组成。没有L天门冬氨酰胺酶,10个病人(控制组)收到了抢救联合化疗。结果:完全的宽恕率为LASP组是45.6%,0.0%为控制组织(P<0.05)。全面反应率(CR+PR)为LASP组是63.6%,10.0%为控制组织,分别地(P<0.05)。2年的幸存率为LASP组是45.5%,0.0%为控制组织(P<0.05)。LASP的主要不利效果是白细胞减少,浆液bilirubin和多糖症的举起。结论:LASP基于的初步的临床的学习表演抢救化疗可以与倔强的MPTC-NHL改进反应率和病人的2年的幸存率。进一步继续学习是必要的。

  • 标签: Efficacy L-ASPARAGINASE TREATMENT midficial PERIPHERAL T-CELL
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  • 简介:AbstractPurpose:To establish a severe blast lung injury model of goats and investigate the feasibility of lung ultrasonic score in the evaluation of blast lung injury.Methods:Twenty female healthy goats were randomly divided into three groups by different driving pressures: 4.0 MPa group (n = 4), 4.5 MPa group (n = 12) and 5.0 MPa group (n = 4). The severe blast lung injury model of goats was established using a BST-I bio-shock tube. Vital signs (respiration, heart rate and blood pressure), lung ultrasound score (LUS), PO2/FiO2 and extravascular lung water (EVLW) were measured before injury (0 h) and at 0.5 h, 3 h, 6 h, 9 h, 12 h after injury. Computed tomography scan was performed before injury (0 h) and at 12 h after injury for dynamic monitoring of blast lung injury and measurement of lung volume. The correlation of LUS with PaO2/FiO2, EVLW, and lung injury ratio (lesion volume/total lung volume*100%) was analyzed. All animals were sacrificed at 12 h after injury for gross observation of lung injury and histopathological examination. Statistical analysis was performed by the SPSS 22.0 software. The measurement data were expressed as mean ± standard deviation. The means of two samples were compared using independent-sample t-test. Pearson correlation analysis was conducted.Results:(1) At 12 h after injury, the mortality of goats was 0, 41.67% and 100% in the 4.0 Mpa, 4.5 MPa and 5.0 MPa groups, respectively; the area of pulmonary hemorrhage was 20.00% ± 13.14% in the 4.0 Mpa group and 42.14% ± 15.33% in the 4.5 MPa group. A severe lung shock injury model was established under the driving pressure of 4.5 MPa. (2) The respiratory rate, heart rate, LUS and EVLW were significantly increased, while PaO2/FiO2 was significantly reduced immediately after injury, and then they gradually recovered and became stabilized at 3 h after injury. (3) LUS was positively correlated with EVLW (3 h: r = 0.597, 6 h: r = 0.698, 9 h: r = 0.729; p < 0.05) and lung injury ratio (12 h: r= 0.884, p < 0.05), negatively correlated with PaO2/FiO2 (3 h: r =-0.871, 6 h: r =-0.637, 9 h: r =-0.658; p < 0.05).Conclusion:We established a severe blast lung injury model of goats using the BST-I bio-shock tube under the driving pressure of 4.5 MPa and confirmed that ultrasound can be used for quick evaluation and dynamic monitoring of blast lung injury.

  • 标签: Blast injuries Lung injury Goats Bio-shock tube
  • 简介:AIM:TotestthehypothesisthatE-cadheringene(CDH1)C-160Apromotervariantgenotypeisassociatedwithanincreasedriskfordevelopinggastriccancer.METHODS:Inthispopulation-basedcase-controlstudyofgastriccancerinJiangsuProvince,China,weperformedpolymerasechainreaction-restrictionfragmentlengthpolymorphism(PCR-RFLP)togenotypetheC-160ApolymorphismofCDH1promoterin206non-cardiagastriccancerpatientsand261age-andsex-matchedbutunrelatedcancer-freecontrols.RESULTS:ThefrequenciesofgenotypesCC,CAandAAwere57.8%,36.4%and5.8%ingasfriccancercases,respectively,and58.2%,34.9%and6.9%incontrolsrespectively.ThedistributionsofCDH1genotypeswerenotsignificantlydifferentbetweengastriccancercasesandcontrols(P=0.87forgenotypefrequencyandP=0.92forallelefrequency).ComparedwiththeCCgenotype,theCAandAAgenotypeswerenotassociatedwithanincreasedriskfornon-cardiagastriccancer(adjustedoddsratios(OR)=1.15,and95%confidenceinterval(95%CI)=0.78-1.72forCAgenotype,andOR=0.90and95%CI=0.42-2.01forAAgenotype).CONCLUSION:E-cadheringeneC-160Apromoterpolymorphismmaynotplayamajorroleintheetiologyofnon-cardiagastriccancerinChinesepopulation.

  • 标签: E-钙粘素基因 C-160A 细胞多肽性 贲门癌 胃癌 肿瘤
  • 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.

  • 标签: GSK-3P NK cells NKG2D/NKG2DLs ROS eIF2B
  • 简介:Objective:Theaimsofthiscross-sectionaldescriptivestudyweretoevaluatethequalityoflife(QoL)ofthelungcancerpatientsandtoinvestigatedifferencesinQoLwithrespecttogeneralandmedicalcharacteristics.Methods:Structuredquestionnaires(EORTCQLQ-C30andQLQ-LC13)wereusedamong106consecutivelungcancerpatientsfordatacollectionduring1Jan2002to31Dec2002.Thet-testandone-wayanalysisofvariance(ANOVA)wereusedtocomparedifferencesofQoLbetweenthefactorsata5%levelofsignificance.Results:Thestudyrevealedthatthequalityoflifeofthelungcancerpatientswereworsethanreferencevalue.Theyoung,maleandmarriedpatientgroupshadbetterQoL.PatientswithlowereducationorincomehadworseQoL.SmallcelllungcancerpatientsreportedpoorerQoLthannon-smallcelllungcancerpatients.ThequalityoflifeinpatientsatlatestageorwithmetastasishadworseQoL.Thetreatmentscouldworsenthequalityoflife.Whentheoutcomesofthefourtreatmentswerecompared,thesurgerygroupdisplayedthebestqualityoflifeandthecombinedtreatmentgroupdisplayedtheworstqualityoflife.Conclusion:Theresultsofthepresentstudyshowedimportantramificationsforclinicians,researchersandpolicy-makers.

  • 标签: 肺癌 生活质量 影响因子 QLQ-C30 QLQ-LC13 问卷调查
  • 简介:CD59,属于膜补充规章的蛋白质(mCRPs),禁止补充的cytolytic活动并且在稳固的癌症是过去表示的,包括卵巢癌症。现在的学习的目的是构造编码shRNA的recombinantretrovirus指向的人的CD59并且感染A2780房间以便调查在减少的CD59表示和卵巢癌症的tumorigenesis之间的关系。siCD59和siCD59-C被分别地定序的PCR,限制endonuclease分析和DNA成功地构造并且识别。siCD59能高效地感染A2780房间,它被西方的弄污证实。当与新鲜正常人的浆液孵化了时(8%,v/v)为在37掳C的1h,房间生存能力被减少,房间损坏在感染的siCD59被增加与siCD59-C相比的A2780房间感染了房间。这导致了caspase-3的激活。在感染的房间用染色的Hoechst与hypercondensed原子核被显示出的siCD59的apoptosis。同时,在裸体老鼠的卵巢肿瘤接枝的重量显著地与siCD59-C组的相比在siCD59组被减少。并且在在siCD59组的肿瘤织物的CD59蛋白质的表示显著地被减少。这些结果建议在经由调停retrovirus的RNAi的卵巢癌症房间的CD59silencing能提高调停补充的房间损坏,禁止卵巢癌症的生长。CD59可能是为在卵巢癌症的基因治疗的一个潜在的目标。

  • 标签: CD59抗原 逆转录病毒介导 卵巢癌细胞 细胞损伤 补体介导 RNA干扰
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  • 简介:AbstractBackground:Allogeneic natural killer (NK) cell immunotherapy is recognized as a promising anti-tumor strategy, but whether it plays a role in poor CD4 recovery among human immunodeficiency virus type 1 (HIV-1) infected patients is unknown. This study aimed to investigate the safety and effectiveness of allogeneic NK cells immunotherapy on HIV-1 immunological non-responders (INRs) receiving antiretroviral therapy (ART).Methods:From February to April 2018, a prospective, randomized, controlled, open-label clinical trial, which enrolled 20 HIV-1 INRs following specific inclusion criteria, was conducted at Nankai University Second People’s Hospital. Participants were randomly allocated (simple randomization 1:1) to either the combined treatment (NK + ART) group (n = 10) or the control (ART) group (n = 10). The allogenic highly activated NK cells from killer cell immunoglobulin-like receptor (KIR)/human leukocyte antigen (HLA)-Cw mismatched healthy donor were prepared (108 cells in each injection) and intravenously infused to each recruited patient of NK+ART group in three courses. Key immune parameters (CD4 count, CD8 count, CD4/CD8 ratio), laboratory tests (count of blood cells, biochemistry panel) and symptoms at baseline and at month 1, 3, 6, 9, 12, and 24 were measured/collected to analyze the safety and efficacy of the therapy. Comparisons were between the seven time-points of both groups using repeated measurement analysis of variance (ANOVA) test. Generalized estimating equations (GEE) model was performed to evaluate the overall effect of the NK+ART group vs. the ART group.Results:From baseline to 24 months, we noted a mean CD4 count augmentation (139 to 243 cells/μL) in the NK + ART group and (144 to 176 cells/μL) in the ART group (difference, 67; 95% CI, 10 to 124; P = 0.024). Our estimations revealed that NK+ART group could improve CD4 level (β = 54.59, P= 0.006) and CD8 level (β = 322.47, P= 0.010) on average among the six measurements compared with the ART group. Only two (2/10, 20%) participants in the NK+ART group developed a transient mild fever after the first course.Conclusions:This preliminary study informs that HIV-1 INRs, allogenic NK cells immunotherapy is safe and could significantly improve CD4 recovery but not CD4/CD8 ratio. The practical effects, however, need long-term follow-up observations. Further study on the potential underlying mechanism is warranted.Registration info:www.chictr.org.cn/showproj.aspx?proj=34912 (No. ChiCTR1900020634).

  • 标签: HIV-1 Immune reconstitution Immunological non-responders Immunotherapy Natural killer cell NK cell
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