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相关概念视频

General Transcription Factors01:30

General Transcription Factors

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Master Transcription Regulators02:23

Master Transcription Regulators

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Transcription Factors02:16

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Co-activators and Co-repressors02:04

Co-activators and Co-repressors

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Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
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Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

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The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
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Gene Families01:57

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Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis
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这是FOXO家族的异构体.

Bruno F Santos1,2,3,4, Inês Grenho1,2,3, Paulo J Martel5

  • 1Algarve Biomedical Center Research Institute-ABC-RI, University of Algarve, Campus de Gambelas, 8005-139, Faro, Portugal.

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概括

叉头盒O (FOXO) 蛋白调节细胞功能和寿命. 准特定的FOXO蛋白质为治疗与年龄相关的疾病和延长健康寿命提供了一个有希望的策略.

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科学领域:

  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.
  • 衰老研究研究 衰老研究

背景情况:

  • 福克索蛋白是细胞平衡,干细胞维护和各种疾病至关重要的转录因子.
  • 遗传研究强调FOXOs在各种动物模型中对寿命调节的作用.
  • FOXO3与极端的人类寿命有关,这表明了治疗潜力.

研究的目的:

  • 审查FOXO家族成员 (FOXO1,3,4和6) 的演变,结构,功能和疾病相关性.
  • 强调需要针对FOXO的异形特异性向,以获得治疗益处.
  • 为开发针对FOXO蛋白的有针对性的策略提供基础.

主要方法:

  • 文献综述和对FOXO蛋白质现有研究的综合.
  • 对FOXO家族成员的进化和功能方面的比较分析.
  • 检查疾病关联和治疗影响.

主要成果:

  • 福克索蛋白在细胞过程和疾病发病过程中发挥着多方面的作用.
  • 有证据支持FOXO参与衰老和寿命.
  • 异形特异性功能需要量身定制的治疗方法.

结论:

  • 了解个体FOXO蛋白的作用是开发有效治疗的关键.
  • 准FOXO对抗癌症和与年龄相关的疾病具有前景.
  • 对FOXO特性的进一步研究可以增强治疗策略并延长健康寿命.