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相关概念视频

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

539
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...
539
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

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Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
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Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
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Antigen Presenting Cells01:22

Antigen Presenting Cells

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The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
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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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相关实验视频

Updated: May 12, 2025

Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture
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皮肤T细胞免疫力

Pirooz Zareie1, Eric S Weiss2, Daniel H Kaplan3

  • 1Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.

Nature immunology
|May 7, 2025
PubMed
概括
此摘要是机器生成的。

皮肤 皮肤 皮肤

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Imaging CD4 T Cell Interstitial Migration in the Inflamed Dermis
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科学领域:

  • 免疫学 免疫学 免疫学
  • 皮肤病学 皮肤病学
  • 微生物学 微生物学

背景情况:

  • 皮肤作为对抗环境危害的关键屏障.
  • 皮肤免疫包括组织居民淋巴细胞,共生细菌和皮肤环境之间的复杂相互作用.
  • 皮肤含有大量的T细胞,影响免疫监测和疾病的发病.

研究的目的:

  • 审查了解皮肤免疫力的最新进展.
  • 突出皮肤T细胞在维持免疫平衡和疾病中的关键作用.
  • 探索皮肤组织,免疫细胞和微生物群之间的相互作用.

主要方法:

  • 这是一篇综述性文章,综合了现有研究.
  • 专注于分析当前关于皮肤免疫学和居住T细胞的文献.
  • 整合了皮肤微生物群和免疫细胞相互作用的发现.

主要成果:

  • 皮肤T细胞是免疫监测和恒温的关键参与者.
  • 这些细胞参与各种皮肤疾病的发病.
  • 了解这些相互作用对于开发新疗法至关重要.

结论:

  • 全面了解皮肤免疫力,特别是皮肤T细胞,对于治疗皮肤疾病至关重要.
  • 皮肤,免疫细胞和微生物群之间的复杂关系调节了皮肤免疫平衡.
  • 对这些相互作用的进一步研究将推动治疗创新.