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相关概念视频

The Early Endosome: Endocytosis of Transferrin01:28

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Essential proteins such as insulin or low-density lipoprotein (LDL) and micronutrients such as iron enter a eukaryotic cell through receptor-mediated endocytosis. Subsequently, the early endosomes fuse with the vesicles containing such receptor-ligand complexes and play a vital role in sorting the incoming ligands and receptors. While the ligands are either degraded inside the vesicle or released into the cytosol, their receptors are returned to the plasma membrane for further rounds of...
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Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
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Integral membrane proteins are proteins adhered to the lipid bilayer of a cell organelle or membrane. They can be of two types: transmembrane integral proteins that span the lipid bilayer and monotopic proteins that are attached to either side of the membrane but do not pass through it.
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Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
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转移氨酸受体是转移氨酸的受体.

Qian Guo1, Christopher Qian2, Xinyu Wang3

  • 1Laboratory of Drug Delivery, School of Medicine, Shanghai University, Shanghai, China. qian_guo@shu.edu.cn.

Experimental & molecular medicine
|April 22, 2025
PubMed
概括
此摘要是机器生成的。

转移素受体 (TfR) 对于细胞的铁吸收至关重要. 本综述详细介绍了最近在了解四种TfR类型的结构和功能方面取得的进展,这些TfR类型对于维持铁平衡至关重要.

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科学领域:

  • 生物化学 生物化学
  • 细胞生物学 细胞生物学
  • 生理学 生理学 生理学

背景情况:

  • 转移素受体 (TfR) 通过内细胞分裂 (endocytosis) 调解细胞的铁吸收,这是大多数细胞的关键过程.
  • 了解TfR功能是理解细胞铁获取和整体铁平衡的关键.
  • 在过去的三十年中,TfR研究取得了重大进展.

研究的目的:

  • 审查最近转移素受体 (TfR) 研究的进展.
  • 讨论四种不同的TfR类型的结构和功能:TfR1,TfR2,TfR3和TfR4.
  • 突出TfR多样性的重要性,以确保组织特定的铁供应.

主要方法:

  • 文献综述侧重于TfR最近的研究.
  • 对TfR1,TfR2,TfR3和TfR4.4的结构和功能的比较分析.
  • 讨论不同细胞类型和器官中不同TfRs的作用.

主要成果:

  • 识别和描述四种类型的转移素受体 (TfR1,TfR2,TfR3,TfR4).
  • 阐明每个TfR类型的独特细胞定位和功能角色.
  • 证明这些受体在不同的细胞和不同的时间运作,以满足铁的需求.

结论:

  • 已识别的四种TfR类型 (TfR1,TfR2,TfR3,TfR4) 具有不同的结构和功能.
  • TfRs的差异表达和活性对于维持全身铁平衡至关重要.
  • 对TfRs的持续研究将进一步阐明铁平衡和相关疾病的机制.