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相关概念视频

Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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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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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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Functions of the Lymphatic and Immune System01:28

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The lymphatic system plays a crucial role in bolstering our immune system. It consists of a network of lymphoid organs, lymph, and lymphatic vessels that provide structural and functional support in safeguarding the body against pathogens such as viruses and bacteria.
The primary lymphoid organs, including the bone marrow and the thymus, serve as the maturation sites for lymphocytes. Secondary lymphoid organs, like the mucosa-associated lymphoid tissue, activate these lymphocytes and serve as...
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T Cell Types and Functions01:24

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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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Updated: Feb 28, 2026

Preparation of Single-cell Suspensions for Cytofluorimetric Analysis from Different Mouse Skin Regions
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皮肤树突细胞:结构,功能和免疫作用

Ioana Cristina Alexandru1, Mariana Grigore2, Olga Simionescu1,2

  • 11st Clinic of Dermatology Colentina Clinical Hospital, 020125 Bucharest, Romania.

Biomedicines
|February 27, 2026
PubMed
概括
此摘要是机器生成的。

皮肤抗原呈现细胞 (APC),包括树突细胞 (DC) 和朗格汉斯细胞 (LC),协调免疫反应. 了解它们的多样性和相互作用为皮肤疾病提供了新的治疗点.

关键词:
兰格拉汉斯细胞是一种细胞.在T细胞,T细胞.具有抗原的细胞呈现抗原.树突细胞是一种树突细胞.它们包括interleukins和interleukins.皮肤免疫学 皮肤免疫学

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相关实验视频

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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
  • 细胞生物学 细胞生物学

背景情况:

  • 皮肤抗原呈现细胞 (APC),特别是树突细胞 (DC) 和朗格汉斯细胞 (LC),对于皮肤免疫监测至关重要.
  • 这些细胞通过呈现抗原,迁移和激活T细胞来弥合先天性和适应性免疫.

研究的目的:

  • 提供皮肤APC多样化的种群和功能的最新概述.
  • 讨论APCs在皮肤平衡,炎症和自身免疫性疾病中的作用.
  • 探索神经免疫皮肤轴和皮肤APC的微环境相互作用.

主要方法:

  • 审查当前关于皮肤APCs的文献.
  • 分析APC多样性,包括表皮和皮肤子集.
  • 讨论APC在炎症性和自身免疫性皮肤疾病中的作用.

主要成果:

  • 详细描述各种皮肤APC子集,包括新定义的DC3,Axl+Siglec-6+DC (ASDC) 和LAMP3+成熟调节DC (mRegDC) 等种群.
  • 突出了在平稳和炎症皮肤之间APC组成和功能的动态变化.
  • 强调了不同的DC子集对Th1和Th17免疫反应在牛皮和亚托邦性皮肤炎等疾病中的贡献.

结论:

  • 对皮肤APC多样性,迁移和微环境相互作用的全面了解至关重要.
  • 这些知识可以导致新的生物标志物和治疗策略,用于炎症性,自身免疫性和瘤性皮肤疾病.
  • 需要进一步的研究来解决DC分类和稳定性的持续争议.