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mTOR

mTOR的相关文献在2003年到2023年内共计946篇,主要集中在肿瘤学、基础医学、药学 等领域,其中期刊论文682篇、会议论文2篇、专利文献262篇;相关期刊360种,包括基础医学与临床、现代生物医学进展、中国免疫学杂志等; 相关会议2种,包括第四届全国肿瘤学进展学术会议、第五届中国肿瘤学术大会暨第七届海峡两岸肿瘤学术会议、国际肿瘤细胞与基因治疗学术会议、第二届中日肿瘤介入治疗学术会议等;mTOR的相关文献由3053位作者贡献,包括保罗·陈·国庆、陈·莫妮卡、颜·昌仁等。

mTOR—发文量

期刊论文>

论文:682 占比:72.09%

会议论文>

论文:2 占比:0.21%

专利文献>

论文:262 占比:27.70%

总计:946篇

mTOR—发文趋势图

mTOR

-研究学者

  • 保罗·陈·国庆
  • 陈·莫妮卡
  • 颜·昌仁
  • 吴永谦
  • 杨作成
  • 史道华
  • 黄振华
  • K·A·梅尼尔
  • 余卫明
  • 傅力
  • 期刊论文
  • 会议论文
  • 专利文献

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    • Chong Wang; Wanglei Lin; Zhihua Sun; Yiming Sun; Yanbo Wang; Linglin Fu
    • 摘要: Porphyra polysaccharide is a special kind of nutrient showing multiple physiological functions including regulating cell proliferation,but the detailed mechanisms are not fully revealed,impairing its further development and applications.This work was to purify and characterize the Porphyra haitanensis polysaccharide(PH),investigate its physiological function,and demonstrate the underlying mechanisms.The purified PH was first characterized by Fourier-transform infrared spectroscopy.Then an intestinal epithelial cell model was established,in which PH significantly suppressed cell hyperplasia.Specifically,PH activated the Hippo/YAP pathway,which subsequently activated m TOR pathway,however m TOR activated Hippo in the absence of PH.Moreover,both the inhibition of Hippo by YAP1 knock-down and the suppression of m TOR by rapamycin impaired PH function.These results indicated that PH attenuated hyperplasia activity by remodeling the cross-talk between Hippo/YAP and m TOR pathways,which revealed potential targets and approaches for treating hyperplasia-related diseases and provided novel ways to utilize P.haitanensis as well as other related functional foods.
    • Xin Sun; Li-Yi Huang; Hong-Xia Pan; Li-Juan Li; Lu Wang; Gai-Qin Pei; Yang Wang; Qing Zhang; Hong-Xin Cheng; Cheng-Qi He; Quan Wei
    • 摘要: Although many therapeutic interventions have shown promise in treating spinal cord injury, focusing on a single aspect of repair cannot achieve successful and functional regeneration in patients following spinal cord injury. In this study, we applied a combinatorial approach for treating spinal cord injury involving neuroprotection and rehabilitation, exploiting cell transplantation and functional sensorimotor training to promote nerve regeneration and functional recovery. Here, we used a mouse model of thoracic contusive spinal cord injury to investigate whether the combination of bone marrow mesenchymal stem cell transplantation and exercise training has a synergistic effect on functional restoration. Locomotor function was evaluated by the Basso Mouse Scale, horizontal ladder test, and footprint analysis. Magnetic resonance imaging, histological examination, transmission electron microscopy observation, immunofluorescence staining, and western blotting were performed 8 weeks after spinal cord injury to further explore the potential mechanism behind the synergistic repair effect. In vivo, the combination of bone marrow mesenchymal stem cell transplantation and exercise showed a better therapeutic effect on motor function than the single treatments. Further investigations revealed that the combination of bone marrow mesenchymal stem cell transplantation and exercise markedly reduced fibrotic scar tissue, protected neurons, and promoted axon and myelin protection. Additionally, the synergistic effects of bone marrow mesenchymal stem cell transplantation and exercise on spinal cord injury recovery occurred via the PI3 K/AKT/mTOR pathway. In vitro, experimental evidence from the PC12 cell line and primary cortical neuron culture also demonstrated that blocking of the PI3 K/AKT/mTOR pathway would aggravate neuronal damage. Thus, bone marrow mesenchymal stem cell transplantation combined with exercise training can effectively restore motor function after spinal cord injury by activating the PI3 K/AKT/mTOR pathway.
    • 马秀娟; 赵艳萌; 王文良; 靳晓飞; 周晓红; 高维娟
    • 摘要: 目的 探讨补阳还五汤抗大鼠脑缺血/再灌注损伤的AMPK/mTOR/ULK1自噬信号通路机制.方法 用改良线栓法建造大鼠左侧脑缺血模型,各组大鼠每24 h给药1次,共3次.再灌注72 h后观察大鼠神经损伤情况和脑梗死体积改变;尼氏染色法和TUNEL染色法观察神经细胞形态、数量以及凋亡情况;Western blot检测自噬蛋白和AMPK/mTOR/ULK1自噬信号通路相关蛋白表达情况.结果 补阳还五汤改善大鼠神经功能缺陷,减少脑梗死体积和神经细胞凋亡,减轻脑组织病理损伤;抑制AMPK磷酸化活化,解除AMPK对下游mTOR和ULK1的抑制,促进二者磷酸化激活,抑制细胞自噬.AMPK激动剂Metformin提高细胞自噬水平,同时逆转了补阳还五汤抗大鼠脑缺血/再灌注损伤作用.结论 补阳还五汤介导AMPK/mTOR/ULK1自噬信号通路对脑缺血/再灌注损伤大鼠发挥神经保护作用.
    • 戴芷晴; 管金山; 徐小媛; 姚心怡; 焦旭颖; 王月飞
    • 摘要: 枸杞多糖是一种从枸杞中提取的有效成分,可以通过调控自噬参与神经保护、抗癌、抗氧化等过程。本文分别从自噬相关蛋白、分子信号通路、细胞器自噬三个层面进行阐述,综述了近年来枸杞多糖对自噬调控的研究进展,为枸杞多糖的应用提供理论依据和研究思路。
    • 何彬; 高艺源; 施声淦; 蒋培都
    • 摘要: 自噬是一种细胞内成分经溶酶体途径被降解的过程,对维持细胞内环境稳态及细胞成分自我更新具有重要作用。研究表明自噬与常染色体显性遗传性多囊肾病(autosomal dominant polycystic kidney disease,ADPKD)的囊肿生成密切相关。进一步研究发现,ADPKD疾病模型中存在自噬受损和自噬增强两种现象,自噬失调影响了ADPKD的发生发展。因此,自噬的调节可能成为ADPKD治疗新策略。经mTOR依赖性和mTOR非依赖性途径调节自噬的药物也显示出了缓解ADPKD症状的作用。本文就自噬在ADPKD中的作用研究进展进行综述,为进一步研究自噬与ADPKD及其药物调控提供参考。
    • 刘颖颖; 孟娟娟; 常瑗; 蔺珂; 廖原; 许军英; 侯隽; 陈雪玲; 王仙
    • 摘要: 目的观察棘球蚴感染后,mTOR途径对T细胞糖酵解的影响。方法将Balb/c小鼠随机分为对照组、感染组和抑制剂组。感染组和抑制剂组肝被膜下注射原头蚴,对照组注射等体积的PBS,抑制剂组从第2天起每日腹腔注射雷帕霉素(1.25 mg/kg)。分别于感染后15、30和70 d,收集外周血和脾脏,qRT-PCR检测糖酵解相关转录因子的mRNA表达,Western blot检测mTOR途径下游分子的蛋白表达。结果与对照组比较,感染组中mTOR途径下游分子HIF-1α、P-p70S6和P-4EBP-1的蛋白表达降低(P<0.05),糖酵解相关转录因子HK3、PKM2、LDHA和MCT4的mRNA表达降低(P<0.05),加入雷帕霉素抑制mTOR途径后,糖酵解相关转录因子HK3、PKM2、LDHA和MCT4的mRNA表达进一步降低(P<0.001)。结论棘球蚴感染通过mTOR途径抑制了T细胞的糖酵解代谢。
    • 陈春林; 胡玲榕; 杨玲; 童燕灵; 胡望舒
    • 摘要: 探讨不同浓度西红花苷(Crocin)的抗抑郁作用及可能机制。建立皮质酮(CORT)诱导的PC12细胞损伤模型;不同浓度(1、10、30μmol/L)西红花苷预处理细胞,CCK-8法检测细胞活力,在荧光显微镜下观察细胞突触形态;Western Blot检测细胞BDNF、mTOR蛋白的表达;体外研究中,将40只小鼠分成5组,灌胃生理盐水、CRO10 mg/kg、CRO30 mg/kg、CRO100 mg/kg、氟西汀20 mg/kg后行强迫游泳和悬尾实验,记录其累积不动时间。实验结果表明,西红花苷对皮质酮损伤的PC12细胞有保护作用,且能够改善模型小鼠的抑郁样行为,其机制可能与mTOR-BDNF通路密切相关。
    • Ming-Xi Li; Jing-Wen Weng; Eric S.Ho; Shing Fung Chow; Chi Kwan Tsang
    • 摘要: Injuries to the central nervous system(CNS)such as stroke,brain,and spinal cord trauma often result in permanent disabilities because adult CNS neurons only exhibit limited axon regeneration.The brain has a surprising intrinsic capability of recovering itself after injury.However,the hostile extrinsic microenvironment significantly hinders axon regeneration.Recent advances have indicated that the inactivation of intrinsic regenerative pathways plays a pivotal role in the failure of most adult CNS neuronal regeneration.Particularly,substantial evidence has convincingly demonstrated that the mechanistic target of rapamycin(mTOR)signaling is one of the most crucial intrinsic regenerative pathways that drive axonal regeneration and sprouting in various CNS injuries.In this review,we will discuss the recent findings and highlight the critical roles of mTOR pathway in axon regeneration in different types of CNS injury.Importantly,we will demonstrate that the reactivation of this regenerative pathway can be achieved by blocking the key mTOR signaling components such as phosphatase and tensin homolog(PTEN).Given that multiple mTOR signaling components are endogenous inhibitory factors of this pathway,we will discuss the promising potential of RNA-based therapeutics which are particularly suitable for this purpose,and the fact that they have attracted substantial attention recently after the success of coronavirus disease 2019 vaccination.To specifically tackle the blood-brain barrier issue,we will review the current technology to deliver these RNA therapeutics into the brain with a focus on nanoparticle technology.We will propose the clinical application of these RNA-mediated therapies in combination with the brain-targeted drug delivery approach against mTOR signaling components as an effective and feasible therapeutic strategy aiming to enhance axonal regeneration for functional recovery after CNS injury.
    • 李杰; 浦洋; 张梦迪; 张鹏举; 许寅喆
    • 摘要: 目的探讨雷帕霉素靶蛋白(mTOR)过度活化导致细胞抗氧化能力增强的分子机制。方法使用Gene Expression Omnibus(GEO)数据库中的芯片数据分析mTOR活化细胞与对照细胞的差异基因并进行功能通路富集分析。使用反应活性氧(ROS)诱导剂高剂量亚精胺处理细胞,观察mTOR高活化细胞TSC2敲除的小鼠胚胎成纤维细胞(tsc2^(-/-)MEFs)的抗氧化能力。利用差异表达基因之间的蛋白质相互作用筛选核心基因。使用q-PCR和Western blot验证该核心基因在tsc2^(-/-)MEFs中的表达情况。在tsc2^(-/-)MEFs中构建该核心基因的敲低细胞系并检测该基因对细胞增殖和抗氧化能力的影响。利用The Cancer Genome Atlas(TCGA)的RNA-seq和临床数据分析该基因对肝癌和黑色素瘤患者预后的影响。结果mTOR活化细胞中参与氧化还原通路的基因显著上调。mTOR活化的细胞对高剂量亚精胺更耐受(P<0.05)。分析筛选出该通路中差异表达的核心基因MGST1(P<0.05)。MGST1的表达在mTOR活化细胞中较对照细胞系显著增强(P<0.05)。在Rapamycin处理的mTOR活化细胞中,MGST1的表达水平下降。tsc2^(-/-)MEFs敲低MGST1后对氧化应激更敏感(P<0.05)。在TCGA的肝癌和黑色素瘤数据中发现,MGST1高表达的患者生存期低于低表达患者(P<0.01)。结论mTOR活化可以促进MGST1的表达使细胞的抗氧化能力增强。
    • 李威; 陈静; 樊锐锋; 匡洪影; 徐邱鸿; 潘紫萌
    • 摘要: 目的探讨苍附导痰汤对多囊卵巢综合征(polycystic ovary syndrome,PCOS)模型大鼠卵巢细胞线粒的调节机制。方法采用皮下注射双氢睾酮(DHEA)的方法构建PCOS大鼠模型后,使用苍附导痰汤灌胃治疗。检测中药治疗对卵巢功能及卵巢细胞线粒体活性的影响,并观察卵巢局部包膜内慢病毒包被的mTOR shRNA序列表达载体卵巢包膜内注射对中药疗效的影响。结果苍附导痰汤灌胃治疗能够显著提高PCOS模型大鼠的排卵数并降低血清雄激素水平、提高Drp-1因子的蛋白表达水平、提高颗粒细胞线粒体活性并能够对细胞内的线粒体异常聚集状态起到改善作用。mTOR因子的shRNA能够拮抗苍附导痰汤的药效作用。结论苍附导痰汤治疗PCOS模型大鼠卵巢功能异常的药效机制很可能与mTOR介导的对线粒体功能的调节有关。卵巢颗粒细胞内线粒体活性及功能的变化很可能是连接细胞代谢与内分泌功能变化的关键节点。
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