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Fas配体

Fas配体的相关文献在1996年到2022年内共计253篇,主要集中在肿瘤学、内科学、基础医学 等领域,其中期刊论文236篇、会议论文5篇、专利文献10228篇;相关期刊157种,包括中国实验血液学杂志、中华微生物学和免疫学杂志、中华肝脏病杂志等; 相关会议5种,包括2010年全国小儿心血管疾病学术会议、2007年浙江省精神病学术年会、2003年中国博士后生命科学学术研讨会暨院士论坛等;Fas配体的相关文献由777位作者贡献,包括邹萍、詹文华、蔡世荣等。

Fas配体—发文量

期刊论文>

论文:236 占比:2.25%

会议论文>

论文:5 占比:0.05%

专利文献>

论文:10228 占比:97.70%

总计:10469篇

Fas配体—发文趋势图

Fas配体

-研究学者

  • 邹萍
  • 詹文华
  • 蔡世荣
  • 付志仁
  • 刘凌波
  • 丁尔迅
  • 兰平
  • 刘京衢
  • 姚咏明
  • 柴家科
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 孙洋; 赵俸玉; 刘娇
    • 摘要: 目的探讨急性心力衰竭采用真武汤治疗对患者血清脑钠肽(BNP)、可溶性Fas(sFas)及可溶性Fas配体(sFasL)水平的影响。方法回顾性分析2019年2月—9月黑龙江省中医医院接诊的100例急性心力衰竭患者的临床资料,根据不同治疗方式将其分为对照组(西医治疗,50例)与观察组(西医联合真武汤治疗,50例),对比2组治疗前、治疗15 d时的中医证候评分与心功能及血清BNP、sFas、sFasL水平,并对比2组治疗期间的不良反应发生率。结果治疗15 d时,2组中医证候评分均较治疗前降低,观察组较对照组低,差异有统计学意义(P<0.05);治疗15 d时,2组左室舒张末期内径较治疗前减小,观察组较对照组小,2组左室射血分数较治疗前升高,观察组较对照组高,差异有统计学意义(P<0.05);治疗15 d时,2组BNP、sFas、sFasL水平均比治疗前低,且观察组低于对照组,差异有统计学意义(P<0.05);治疗期间,2组均未发生严重不良反应。结论真武汤联合西医治疗急性心力衰竭患者的效果优于单独使用西医治疗,能够改善临床症状,提高心功能,并可显著降低血清BNP、sFas、sFasL水平,且并未增加不良反应发生率。
    • 单哲; 范江砂; 任敏
    • 摘要: 目的 探讨免疫性血小板减少症(ITP)患者血清可溶性Fas(sFas)及其配体(sFasL)的表达及意义.方法 采用ELISA法检测30例ITP患者(ITP组)及30例健康志愿者(对照组)血清中sFas和sFasL的水平,流式细胞术检测两组外周血血小板相关免疫球蛋白(PAIg)的水平.直线回归分析sFas、sFasL水平与PAIgG水平之间的相关性.结果 与对照组相比,ITP组血清sFas和sFasL的水平升高[(26.23±4.23)μg/L vs.(5.51±1.24) μg/L和(27.12±1.23) μg/Lvs.(4.36±3.58) μg/L](P<0.05).ITP组治疗后血清中sFas和sFasL的水平较治疗前下降[(10.21±1.22)μg/L vs.(26.23±4.23) μg/L和(6.32±3.58) μg/L vs.(27.12±1.23) μg/L] (P<0.05).ITP组血清中sFas、sFasL水平与PAIgG水平显著相关(r=0.434、0.491,P<0.01).结论 ITP患者血清sFas和sFasL水平升高,可能与其发病相关.
    • 马灵芝; 任娅岚; 钱丽萍; 戈文斌; 刘亚丽; 周治
    • 摘要: 目的:探讨Fas配体(Fas ligand,FasL)过表达对人牙周膜干细胞(periodontal ligament stem cells,PDLSCs)骨向分化能力的影响。方法:体外有限稀释克隆化培养人PDLSCs,构建FasL过表达质粒,转染至PDLSCs,实验分为对照组(Control组)、空载体对照组(NC组)、FasL过表达组(EX组),对各组进行成骨诱导,茜素红染色、实时荧光定量PCR(Real-time PCR)和Western blot检测PDLSCs成骨分化的能力。结果:EX组成骨分化能力较Control组和NC组有明显升高(P0.05)。结论:FasL可以促进PDLSCs成骨分化。
    • 王姗; 张艳淑; 赵勇; 郑全辉; 田枫; 千晔; 刘颖; 李会婷; 张爱红; 侯志宏; 刘亚楠; 李娟
    • 摘要: To investigate the role of histone deacetylase3 (HDAC3) in T cell homeostasis,we deleted hdac3 in CD4+CD8+ double positive(DP) stage ofthymocytes using the cd4-cre transgene.The CD4Cre-mediated hdac3 deletion did not impact T cell development in the thymus but resulted in a dramatic loss of peripheral T cells.In addition,peripheral T cells in hdac3 knock-out mice showed a dominant activation/effector/memory phenotype.Mechanism analysis revealed an increased cell apoptosis which was accompanied by an accelerated cell proliferation in the peripheral T cells of hdac3 knock-out mice.Moreover,Fas and FasL positive cells and FasL expression increased significantly in the peripheral T cells ofhdac3 knock-out mice.In vitro TCR activation did not affect the apoptosis of normal peripheral T cells,but dramatically increased apoptosis of peripheral T cells from hdac3 knock-out mice.Our results presented here indicate an important role of HDAC3 in maintaining homeostasis of peripheral T cells by refraining them from activation-induced cell death.%为探讨组蛋白去乙酰化酶3(HDAC3)在T细胞自稳中的作用,采用LoxP-cd4cre酶系统在胸腺CD4+CD8+双阳性T细胞(DP)中敲除hdac3基因.hdac3基因敲除小鼠不影响T细胞在胸腺中的发育,但导致外周T细胞显著降低,而且,hdac3基因敲除的外周T细胞主要以活化/效应/记忆表型为主.机制分析表明,hdac3基因敲除的外周T细胞凋亡增加并伴随细胞增殖加速,同时,Fas和Fas配体阳性细胞比率以及Fas配体的表达显著增加.体外TCR活化不影响正常外周T细胞的凋亡,但导致h dac3基因敲除的外周T细胞凋亡显著增加.实验结果表明,HDAC3通过抑制活化诱导的细胞凋亡维持外周T细胞自稳.
    • 徐飞; 姚轶; 李雨婷; 高楠楠
    • 摘要: 目的:采用分子生物学技术分析大鼠坐骨神经损伤后坐骨神经远端Wallerian溃变(Wallerian degeneration,WD)过程中,Fas配体(Fas ligand,FasL)的表达变化,并通过干扰FasL的表达分析FasL在施万细胞(Schwann cells,SCs)中的功能,探讨FasL在周围神经损伤修复与再生过程中的作用机制.方法:建立大鼠损伤坐骨神经WD模型,采用Real-time PCR和Western Blot的方法,分析FasL在大鼠坐骨神经WD过程中的表达变化,并通过培养和纯化的SCs,siRNA干扰FasL的表达分析FasL在SCs中的功能.结果:大鼠坐骨神经损伤后,在WD过程中,FasL的表达量显著升高,FasL siRNA干扰后SCs的增殖和迁移均增加,且引起SCs其他相关基因的表达变化.结论:大鼠坐骨神经损伤后,FasL的表达发生变化并影响SCs的生物学功能,提示FasL在周围神经损伤修复与再生过程中发挥了一定的作用.
    • 马飞; 张耀元; 邹玉安; 薛茜; 张力; 宋爱霞
    • 摘要: 目的 研究脑缺血预处理对Fas、FasL、Caspase-3蛋白在大鼠脑缺血再灌注脑梗死组织中变化的影响及其作用机制.方法 按照体重将SD大鼠随机分为3组:模型Ⅰ组、模型Ⅱ组和假手术组,每组30只.模型Ⅰ组采用Zea-Longa’大脑中动脉线栓法制备;模型Ⅱ组给予右侧颈内动脉阻断血流10 min完成预缺血;3 d后,与模型Ⅰ组同用大脑中动脉线栓法建立脑缺血再灌注模型;假手术组大鼠仅需分离右颈总动脉.术后,在6,12,24,48,72 h这5个时间点评估各组大鼠的神经行为,测定脑梗死体积,以免疫组化法测定大鼠脑组织的Fas、Fas配体(FasL)及Caspase-3蛋白水平,用缺口末端标记(TUNEL)法检测大鼠脑组织的神经细胞凋亡率.结果 术后24h,模型Ⅰ组、模型Ⅱ组和假手术组的神经功能缺损评分分别为(2.8±0.8),(1.8±0.8),0分;这3组的脑组织Fas蛋白阳性细胞表达分别为(35.67 ±2.16)%,(22.83±1.71)%,(14.17 ±2.32)%;这3组的脑组织FasL蛋白阳性细胞表达分别为(36.50±1.38)%,(22.67±2.50)%,(13.33 ±1.21)%;这3组的脑组织Caspase-3蛋白阳性细胞表达分别为(37.33±1.03)%,(23.17±1.47)%,(11.33 ±1.37)%;这3组的脑组织神经细胞凋亡率分别为(40.58±1.72)%,(23.25 ±1.13)%,(11.75 ±1.37)%.大鼠在术后神经功能缺损评分及Fas、FasL、Caspase-3蛋白和凋亡细胞数的表达,模型Ⅱ组均低于模型Ⅰ组;同时2个模型组均高于假手术组,差异有统计学意义(均P<0.05).结论 脑缺血预处理可下调脑缺血再灌注大鼠脑组织Fas、FasL、Caspase-3蛋白的表达水平,抑制神经元的凋亡;抑制Fas、FasL信号通路可能是脑缺血预处理诱导的脑保护机制之一.%Objective To study effects of cerebral ischemic preconditioning on the changes of Fas,FasL,Caspase-3 proteins in infarction tissue after cerebral ischemia reperfusion of rats and to explore its mechanism.Methods The rats were randomly divided into three groups as follows:model Ⅰ group,model Ⅱ group and the sham operated group.Each group had thirty rats.The rats in model Ⅰ were prepared by Zea-Longa'middle cerebral artery occlusion.The right internal carotid artery of rats in model Ⅱ group was blocked transiently 10 minutes at one time.After 3 days,the middle cerebral artery occlusion of rat in model Ⅱ group was used to establish focal cerebral ischemia reperfusion injury model according to the model Ⅰ group.The sham operated group only isolated carotid artery.The neural behavior of rats was evaluated and the volume of cerebral infarction was detected after operation at 6,12,24,48,72 h(each group had six rats).The expressions of Fas,FasL and Caspase-3 protein of rats at different time points after operation were observed by immunohistochemical method.The apoptosis rate of nerve cells were detected by TdT -mediated dUTP nick-end labeling (TUNEL)method.Results At the time of 24 h after operated,the neural function defect point in model Ⅰ group,model Ⅱ group and sham operated group of rats were (2.8 ± 0.8),(1.8 ± 0.8),0 point.The expression of Fas protein positive cells in rats' brain tissue were (35.67 ± 2.16) %,(22.83 ± 1.71) %,(14.17 ± 2.32) % in that three groups.The expression of FasL protein positive cells in rats' brain tissue were(36.50 ±1.38)%,(22.67 ±2.50)%,(13.33 ±1.21)% in that three groups.The expression of Caspase-3 protein positive cells in rats' brain tissue were(37.33 ± 1.03)%,(23.17 ± 1.47)%,(11.33 ± 1.37)%.The apoptotic rate in brain tissue of rats were(40.58 ± 1.72)%,(23.25 ± 1.13)%,(11.75 ± 1.37)% in that three groups.Compared with model Ⅰ group,the neural function defect point of rats or the expression rat of Fas,FasL,Caspase-3 protein and the number of apoptotic nerve cells in model Ⅱ group at the same time all decreased;but the two groups were significantly higher than the sham operated group,(all P < 0.05).Conclusion Cerebral ischemic preconditioning can reduce the expression of Fas,FasL and Caspase-3 proteins.Negative regulation of Fas and FasL pathway after ischemic preconditioning may be an important endogenous mechanism of the resistance to damage.
    • 何平; 闵柳畅; 张蓓茹; 刘大军; 杨旭; 周光宇; 边晓慧; 王艳秋; 李德天
    • 摘要: 目的探讨乙型肝炎病毒X蛋白(HBx)诱导大鼠肾小管上皮细胞凋亡及其可能的机制。方法以HBx的表达载体转染体外培养的大鼠肾小管上皮细胞(NRK-52E)建立HBx过表达模型。分别转染空质粒pc-DNA3.1(+)24h(空质粒转染组),以及转染pc-DNA3.1(+)HBx质粒24h(HBx24h组)、48h(HBx48h组)和72h(HBx72h组),并设对照组(未做转染)。应用流式细胞仪测定细胞凋亡率。分别采用Western印迹法检测Fas、Fas配体(FasL)、Bcl-2、Bax的蛋白质表达水平,分光光度测定法测定半胱氨酸天冬氨酸蛋白酶(Caspase)8活性。结果 HBx24h组、HBx48h组、HBx72h组的HBx、Fas、FasL、Bax的蛋白质相对表达量,以及Caspase8的相对活性逐渐增加,且组间差异均有统计学意义(P值分别0.05);HBx24h组、HBx48h组和HBx72h组的细胞凋亡率逐渐升高,组间差异有统计学意义(P值均<0.05),且均显著高于对照组和空质粒转染组(P值均<0.05)。结论 HBx基因通过Fas/FasL死亡受体途径促进NRK-52E细胞凋亡,Caspase8的活化可能参与其中。
    • 张华; 郭文涛
    • 摘要: 目的:探讨脑胶质瘤细胞中miR-21对FasL表达的调控作用以及对细胞生长和凋亡的影响,并研究其分子作用机制。方法:将miR-21模拟物( miR-21 mimics )、miR-21抑制物( miR-21 inhibitor )以及阴性对照(scramble)瞬时转染到U251细胞中,CCK-8法和流式细胞术检测细胞活力和凋亡情况。构建FasL 3’ UTR双萤光素酶报告载体,通过采用双萤光素酶报告实验验证miR-21的靶基因。构建表达载体pcDNA3.1-FasL,回复实验分析miR-21对细胞凋亡的影响。结果:miR-21过表达可促进U251细胞的活力,抑制细胞凋亡;miR-21表达下调则抑制细胞活力,促进细胞凋亡,和对照组比较差异有统计学意义(P<0.05)。双萤光素酶报告实验和回复实验结果提示miR-21可以通过作用于FasL的3’ UTR区,负向调控其表达,从而抑制细胞的凋亡。结论: miR-21可以通过靶向调控FasL的表达进而促进U251细胞的生长。%AIM:ToinvestigatetheregulationofmiR-21onFasLexpressionanditseffectonthegrowthand apoptosis in glioma cells , and to evaluate the molecular mechanism .METHODS:Differential expression levels of miR-21 in human glioma U251 cells were achieved by transfecting with miR-21 mimics, miR-21 inhibitor or scramble .The viability and apoptosis of U251 cells were detected by CCK-8 assay and flow cytometry with Annexin V-FITC/PI double staining. The recombination vector pmirGLO-FasL was constructed .Dual-luciferase reporter experiment was performed to validate the target genes of miR-21.The expression vector pcDNA3.1-FasL was also constructed , and the biological activity and regula-tory role of miR-21 in U251 cell apoptosis were analyzed by a restore experiment .RESULTS:Exogenous overexpression of miR-21 increased the viability and decreased the apoptosis of U 251 cells ( P<0.05 ) , while miR-21 inhibitors generated the opposite results (P<0.05).Dual-luciferase reporter assay and restore experiment revealed that miR-21 negatively reg-ulated the expression of FasL gene which was regarded as the target gene , thus decreasing the apoptosis of U 251 cells. CONCLUSION:miR-21 increases the viability of glioma U251 cells, in which FasL may be one of the target genes .
    • 刘小卫; 刘仁胜; 刘晓丽; 李威; 李伟
    • 摘要: 目的 观察哺乳动物雷帕霉素靶蛋白(mTOR)信号通路在Fas配体(Fas-L)诱导胆管细胞凋亡中的作用.方法 以正常孵育胆管细胞为对照,Fas-L(1.5 μg/L)孵育原代培养2~10代大鼠胆管细胞48 h,流式细胞技术检测Fas-L对胆管细胞的凋亡诱导作用,Western blot检测两组胆管细胞内mTOR/p70S6K磷酸化水平,信号通路抑制剂雷帕霉素(Rapamycin,10 nmol/L)孵育两组胆管细胞24 h,观察胆管细胞内mTOR/p70S6K磷酸化水平.结果 Fas-L可显著诱导胆管细胞凋亡[(68.5±8.8)%比(6.9±1.2)%,P<0.05],Fas-L孵育胆管细胞mTOR/p70S6K磷酸化水平升高,信号通路活化.雷帕霉素可显著抑制mTOR信号通路的磷酸化活化,明显减少Fas-L诱导的胆管细胞凋亡[(65.8±9.1)%比(20.9±4.3)%,P<0.05].结论 Fas-L可能通过活化mTOR信号通路诱导胆管细胞凋亡.%Objective To explore the roles of mammalian target of rapamycin (mTOR) signaling pathway in Fas-ligand (Fas-L)-induced cholangiocyte apoptosis.Methods Control study with primarily cultured rat cholangiocytes served as control group.Primarily cultured cholangiocytes were treated with Fas-L (1.5 μg/L) for 48 h.The flow cytometry was used to detect the apoptosis of cholangiocytes in response to Fas-L.Meanwhile, the activation of mTOR signaling pathway in cholangiocytes in response to Fas-L was detected by Western blotting.The cholangiocytes incubated with Fas-L were further treated by the specific inhibitor of mTOR signaling pathway, rapamycin (10 nmol/L) for 24 h to observe its influence on activation of mTOR signaling pathway and apoptosis.Results Fas-L significantly induced apoptosis of cholangiocytes [(68.5 ± 8.8) % vs.(6.9 ± 1.2) %, P < 0.05] and activated the mTOR signaling pathway by phosphorylating the mTOR and p70S6K.However, rapamycin not only significantly inhibited phosphorylation of mTOR/p70S6K but also reduced apoptosis of cholangiocytes induced by Fas-L [(65.8 ± 9.1) % vs.(20.9 ± 4.3) %, P < 0.05].Conclusion Fas-L induces apoptosis of cholangiocytes probably through activating mTOR signaling pathway.
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