gene transcription

基因转录
  • 文章类型: Systematic Review
    氙气在动物模型中对各种神经系统损伤表现出显著的神经保护作用。然而,在人类神经损伤研究中,氙气改善结局的临床证据仍然难以捉摸.以前对氙气作用方法的审查尚未以系统的方式进行。这篇综述的目的是全面总结与氙气给药有关的两种现象的细胞相互作用的证据:麻醉和神经保护。
    根据PRISMA指南对临床前文献进行了系统评价,并在PROSPERO注册了评价方案。该综述包括中枢神经系统的体外模型和哺乳动物体内研究。搜索于2022年5月27日在以下数据库中进行:OvidMedline,OvidEmbase,OvidEmcare,APAPsycInfo,和WebofScience。使用健康评估和翻译工具办公室进行偏见风险评估。鉴于结果数据的异质性,进行了叙事合成。
    该评论确定了69篇文章,描述了638个单独的实验,其中测试了有关氙气与细胞靶标相互作用的假设,包括:膜结合蛋白,细胞内信号级联和转录因子。氙与离子型谷氨酸受体具有共同的和亚型特异性的相互作用。氙还影响抑制性神经递质的释放,并影响多种其他配体门控和非配体门控膜结合蛋白。该综述确定了受氙气给药影响的几种细胞内信号通路和基因转录因子,并可能有助于麻醉和神经保护。
    氙NMDA受体拮抗作用的性质,以及它的额外细胞靶标的范围,区别于其他NMDA拮抗剂如氯胺酮和一氧化二氮。这反映在氙气的独特行为和电生理特征中。氙气影响多个重叠的细胞过程,在细胞膜和细胞内,促进细胞存活。希望识别氙气的潜在细胞靶标可能有助于开发用于神经损伤的潜在疗法并提高氙气的临床利用率。
    https://www.crd.约克。AC.英国/普华永道/,标识符:336871。
    UNASSIGNED: Xenon exhibits significant neuroprotection against a wide range of neurological insults in animal models. However, clinical evidence that xenon improves outcomes in human studies of neurological injury remains elusive. Previous reviews of xenon\'s method of action have not been performed in a systematic manner. The aim of this review is to provide a comprehensive summary of the evidence underlying the cellular interactions responsible for two phenomena associated with xenon administration: anesthesia and neuroprotection.
    UNASSIGNED: A systematic review of the preclinical literature was carried out according to the PRISMA guidelines and a review protocol was registered with PROSPERO. The review included both in vitro models of the central nervous system and mammalian in vivo studies. The search was performed on 27th May 2022 in the following databases: Ovid Medline, Ovid Embase, Ovid Emcare, APA PsycInfo, and Web of Science. A risk of bias assessment was performed utilizing the Office of Health Assessment and Translation tool. Given the heterogeneity of the outcome data, a narrative synthesis was performed.
    UNASSIGNED: The review identified 69 articles describing 638 individual experiments in which a hypothesis was tested regarding the interaction of xenon with cellular targets including: membrane bound proteins, intracellular signaling cascades and transcription factors. Xenon has both common and subtype specific interactions with ionotropic glutamate receptors. Xenon also influences the release of inhibitory neurotransmitters and influences multiple other ligand gated and non-ligand gated membrane bound proteins. The review identified several intracellular signaling pathways and gene transcription factors that are influenced by xenon administration and might contribute to anesthesia and neuroprotection.
    UNASSIGNED: The nature of xenon NMDA receptor antagonism, and its range of additional cellular targets, distinguishes it from other NMDA antagonists such as ketamine and nitrous oxide. This is reflected in the distinct behavioral and electrophysiological characteristics of xenon. Xenon influences multiple overlapping cellular processes, both at the cell membrane and within the cell, that promote cell survival. It is hoped that identification of the underlying cellular targets of xenon might aid the development of potential therapeutics for neurological injury and improve the clinical utilization of xenon.
    UNASSIGNED: https://www.crd.york.ac.uk/prospero/, identifier: 336871.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    这篇综述论文对深度学习和长非编码RNA(lncRNA)的快速发展的融合进行了广泛的分析。考虑到深度学习的最新进展和lncRNAs作为各种生物过程中关键成分的日益认可,这篇综述旨在全面审视这些相互交织的研究领域。深度学习的显著进展需要彻底探索其在lncRNAs研究中的最新应用。因此,这篇综述提供了关于结合深度学习方法来解开lncRNAs复杂作用的日益重要的见解。通过审查2021年至2023年的最新研究,本文全面了解了深度学习技术如何用于研究lncRNAs。从而为这个快速发展的领域提供宝贵的见解。该评论针对希望将深度学习进步整合到lncRNA研究中的研究人员和从业人员。
    This review paper provides an extensive analysis of the rapidly evolving convergence of deep learning and long non-coding RNAs (lncRNAs). Considering the recent advancements in deep learning and the increasing recognition of lncRNAs as crucial components in various biological processes, this review aims to offer a comprehensive examination of these intertwined research areas. The remarkable progress in deep learning necessitates thoroughly exploring its latest applications in the study of lncRNAs. Therefore, this review provides insights into the growing significance of incorporating deep learning methodologies to unravel the intricate roles of lncRNAs. By scrutinizing the most recent research spanning from 2021 to 2023, this paper provides a comprehensive understanding of how deep learning techniques are employed in investigating lncRNAs, thereby contributing valuable insights to this rapidly evolving field. The review is aimed at researchers and practitioners looking to integrate deep learning advancements into their lncRNA studies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    HPA轴和SNS的激活被广泛接受为将慢性应激与血液中外周促炎标志物水平升高联系起来。然而,实验证据表明,糖皮质激素和/或儿茶酚胺的外周水平介导这种作用是模棱两可的。最近的注意力已经转向细胞对这些配体的敏感性可能导致伴随慢性应激的炎症介质的可能性。我们回顾了慢性应激与糖皮质激素受体(GR)和β-肾上腺素受体(β-AR)信号敏感性相关的现有证据。穿过15只老鼠,7灵长类动物,和19项人体研究,我们发现慢性应激可靠地与细胞GR敏感性的下调相关,细胞内β-AR信号的改变,以及外周血促炎生物标志物的上调。我们还提供了证据,表明GR和β-AR信号传导的改变可能对髓样祖细胞具有特异性,因此与压力相关的信号传导促进了对糖皮质激素固有敏感性较低和对儿茶酚胺差异敏感的细胞的释放。我们的发现对于理解慢性应激可能导致促炎表型的机制具有广泛的意义。
    Activation of the HPA-axis and SNS are widely accepted to link chronic stress with elevated levels of peripheral pro-inflammatory markers in blood. Yet, empirical evidence showing that peripheral levels of glucocorticoids and/or catecholamines mediate this effect is equivocal. Recent attention has turned to the possibility that cellular sensitivity to these ligands may contribute to inflammatory mediators that accompany chronic stress. We review current evidence for the association of chronic stress with glucocorticoid receptor (GR) and β-adrenergic receptor (β-AR) signaling sensitivity. Across 15 mouse, 7 primate, and 19 human studies, we found that chronic stress reliably associates with downregulation in cellular GR sensitivity, alterations in intracellular β-AR signaling, and upregulation in pro-inflammatory biomarkers in peripheral blood. We also present evidence that alterations in GR and β-AR signaling may be specific to myeloid progenitor cells such that stress-related signaling promotes release of cells that are inherently less sensitive to glucocorticoids and differentially sensitive to catecholamines. Our findings have broad implications for understanding mechanisms by which chronic stress may contribute to pro-inflammatory phenotypes.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    B lymphoma Mo-MLV insertion region 1 homolog (Bmi-1) is a core protein component of the polycomb repressive complex 1 that inhibits cell senescence and maintains the self-renewal ability of stem cells via downregulation of p16Ink4a and p19Arf expression. Bmi-1 serves an important role in hematopoietic stem cell maintenance and neurodevelopment during embryonic development, and it has been shown to enhance tumorigenesis by promoting cancer stem cell self-renewal and epithelial to mesenchymal transition. Emerging evidence suggests that Bmi-1 overexpression is closely related to the development and progression of various types of cancer, and that downregulation of Bmi-1 expression can inhibit the proliferation, invasion and metastasis of cancer cells. It is therefore important to elucidate the mechanisms underlying the regulation of Bmi-1 expression both under normal growth conditions and in malignant tissues. In the present review, the current body of knowledge pertaining to the transcriptional and post-transcriptional regulation of the BMI-1 gene is discussed, and the potential mechanisms by which Bmi-1 is dysregulated in various types of cancer are highlighted. Bmi-1 expression is primarily controlled via transcriptional regulation, and is regulated by the transcription https://www.ushuaia.pl/hyphen/?ln=en factors of the Myc family, including Myb, Twist1, SALL4 and E2F-1. Post-transcriptionally, regulation of Bmi-1 expression is inhibited by several microRNAs and certain small-molecule drugs. Thus, regulatory transcriptional factors are potential therapeutic targets to reduce Bmi-1 expression in cancer cells. Thus, the present review provides an up-to-date review on the regulation of BMI-1 gene expression at the transcriptional and post-transcriptional level.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    Prostate cancer has, for decades, been treated by inhibiting androgen signalling. This is effective in the majority of patients, but inevitably resistance develops and patients progress to life-threatening metastatic disease - hence the quest for new effective therapies for \'castrate-resistant\' prostate cancer (CRPC). Studies into what pathways can drive tumour recurrence under these conditions has identified several other nuclear receptor signalling pathways as potential drivers or modulators of CRPC.The nuclear receptors constitute a large (48 members) superfamily of transcription factors sharing a common modular functional structure. Many of them are activated by the binding of small lipophilic molecules, making them potentially druggable. Even those for which no ligand exists or has yet been identified may be tractable to activity modulation by small molecules. Moreover, genomic studies have shown that in models of CRPC, other nuclear receptors can potentially drive similar transcriptional responses to the androgen receptor, while analysis of expression and sequencing databases shows disproportionately high mutation and copy number variation rates among the superfamily. Hence, the nuclear receptor superfamily is of intense interest in the drive to understand how prostate cancer recurs and how we may best treat such recurrent disease. This review aims to provide a snapshot of the current knowledge of the roles of different nuclear receptors in prostate cancer - a rapidly evolving field of research.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    维生素E已被证明可以调节细胞信号,基因表达和影响感染耐甲氧西林金黄色葡萄球菌(MRSA)的伤口,从而影响伤口愈合。这篇基于证据的综述旨在识别和评估目前评估维生素E与伤口愈合相关特性的研究,通过其作为抗氧化剂的作用及其对结缔组织生长因子(CTGF)的影响,MRSA与基因转录。1996年至2012年的文献,以英文出版,包括患有急性或慢性伤口的动物或成年人。包含相关文章的数据库缩小到四个,共纳入33项确定的研究.文献综述显示,大量缺乏建立维生素E对伤口愈合的影响的可靠研究,显然有必要进行进一步的研究。
    Vitamin E has been demonstrated to modulate cellular signalling, gene expression and affect wounds infected with methicillin-resistant Staphylococcus aureus (MRSA), thus influencing wound healing. This evidence-based review aimed to identify and evaluate current research assessing the properties of vitamin E in relation to wound healing, through its role as an antioxidant and its influence on connective tissue growth factor (CTGF), MRSA and gene transcription. Literature dated from 1996 to 2012, published in English, involving either animals or adult humans with an acute or chronic wound were included. The databases that contained relevant articles were narrowed down to four, and a total of 33 identified studies were included. The literature review revealed that there is a significant dearth of robust studies establishing the effects of vitamin E on wound healing, and further research is clearly warranted.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

公众号