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相关概念视频

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
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TGF - β Signaling Pathway01:16

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The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
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T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Development of Immunocompetence01:22

Development of Immunocompetence

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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
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Primary Lymphoid Organs01:16

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
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Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
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Updated: Jan 18, 2026

Characterization of Thymic Settling Progenitors in the Mouse Embryo Using In Vivo and In Vitro Assays
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FAM83H 调节产后T细胞的发育,通过胸膜组织组织.

Betul Melike Ogan1,2, Veronika Forstlova3, Laura Jane Dowling3

  • 1Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic.

European journal of immunology
|January 16, 2026
PubMed
概括
此摘要是机器生成的。

FAM83H蛋白对上皮细胞功能和免疫系统发育至关重要. 在小鼠中缺乏它会损害胸膜上皮细胞的成熟,导致T细胞的产生减少和发育缺陷.

关键词:
CK1 一个 CK1这就是FAM83H.在Wnt/β-catenin信号通路中.免疫调节失调 免疫调节失调淋巴细胞 淋巴细胞胸膜上皮细胞 胸膜上皮细胞胸膜流层 (thymic stroma) 是一个甲状腺细胞 (thymocytes) 是一种细胞.

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科学领域:

  • 分子和细胞生物学分子和细胞生物学
  • 免疫学 免疫学 免疫学
  • 发展生物学 发展生物学

背景情况:

  • 序列相似性83H家族 (FAM83H) 是一种与甲状腺细胞蛋白相互作用的甲状腺细胞蛋白,与甲状腺素激酶1 (CK1) 和角质蛋白相互作用.
  • FAM83H突变会导致非完美的乳腺发育,这表明它在质形成中的重要性.
  • FAM83H调节细胞骨组织,细胞增殖和囊泡贩运.

研究的目的:

  • 研究FAM83H在小鼠发育和免疫细胞生成中的作用.
  • 描述Fam83h缺乏的小鼠及其胸膜表型.
  • 探索FAM83H在胸膜上皮细胞中的功能背后的分子机制.

主要方法:

  • 产生Fam83h缺乏的小鼠 (Fam83h-/-) 和被删除的CK1结合域的小鼠 (Fam83h∆87/∆87).
  • 生成的小鼠模型的表型分析,包括生命力,外套,皮肤和活动.
  • 评估淋巴细胞的发育,特别是胸腺中T细胞的发育.
  • 胸膜上皮细胞 (TECs) 的单细胞转录组分析.

主要成果:

  • 缺乏Fam83h的小鼠表现出低活力,体型较小,毛发粗,皮肤,软弱和低活性.
  • 缺少Fam83h会导致淋巴细胞发育受损,特别是阻断T细胞扩张在胸腺的双阴性阶段3 (DN3).
  • Fam83h在胸膜上皮细胞 (TECs) 中表达,其缺乏会破坏胸膜结构并减少T细胞输出.
  • 单细胞转录组学揭示了Foxn1主调节器及其点在Fam83h-/-小鼠皮质TEC (cTEC) 中的减少表达.

结论:

  • FAM83H对于正常发育,免疫细胞的产生和胸膜上皮细胞的成熟至关重要.
  • FAM83H,可能与CK1结合,在调节TEC功能和胸膜架构方面发挥着关键作用.
  • 这些发现突出了FAM83H作为T细胞发育的关键调节者,通过其对TEC的影响.