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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.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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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.
Naive T cells that have not yet encountered an antigen express two primary CD...
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相关实验视频

Updated: Jul 20, 2025

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation
15:33

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation

Published on: August 13, 2013

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miR-15/16集群限制了效应因子Treg细胞分化和功能.

Jiayi Dong1, William J Huth1, Nimi Marcel1

  • 1School of Biological Sciences, University of California, San Diego , La Jolla, CA, USA.

The Journal of experimental medicine
|July 30, 2023
PubMed
概括
此摘要是机器生成的。

微RNA集群miR-15/16限制了效应器调节性T细胞 (eTreg) 反应. 这个集群的损失增强了eTreg功能,影响了免疫挑战和神经炎症.

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Mouse Na&#239;ve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Generation of Induced Regulatory T Cells from Primary Human Na&#239;ve and Memory T Cells
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相关实验视频

Last Updated: Jul 20, 2025

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation
15:33

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation

Published on: August 13, 2013

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Mouse Na&#239;ve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
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Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets

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Generation of Induced Regulatory T Cells from Primary Human Na&#239;ve and Memory T Cells
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Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

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科学领域:

  • 免疫学 免疫学 免疫学
  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.

背景情况:

  • 效应器调节性T细胞 (eTregs) 对免疫平衡和抑制常规T细胞反应至关重要.
  • 微RNAs (miRNAs) 在调节性T细胞 (Tregs) 中的作用已知,但它们对eTregs的具体调节尚不清楚.

研究的目的:

  • 研究微RNAs在调节效应器调节性T细胞 (eTreg) 功能中的作用.
  • 确定 eTreg 反应的特定 miRNA 调节器及其潜在机制.

主要方法:

  • 在小鼠中的miR-15/16集群的Treg特异性切除.
  • 对 eTreg 频率和抑制器功能的评估.
  • 在神经炎症,传染性和非传染性挑战模型中分析免疫反应.
  • 涉及基因表达分析 (IRF4,神经) 的机制研究.

主要成果:

  • 在Tregs中失去miR-15/16集群导致 eTreg数量增加和抑制能力增强.
  • 在Tregs中缺乏miR-15/16的小鼠在神经炎症和其他挑战期间显示免疫反应减少.
  • miR-15/16集群抑制IRF4,这是eTreg功能的关键转录因子.
  • 神经素是一种依赖IRF4的分子,也是miR-15/16集群的直接目标.

结论:

  • 该miR-15/16集群是效应器调节性T细胞 (eTreg) 反应的关键调节者.
  • 在转录和后转录水平上,eTreg功能由miRNAs控制.
  • 这些发现揭示了一种新的miRNA介导的调节途径,影响免疫反应.