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相关概念视频

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.
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What is the Immune System?01:38

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Autoimmune Disorders01:29

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
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Cell-mediated Immune Responses01:40

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Immune Response Against Viral Pathogens01:29

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
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相关实验视频

Updated: Jun 11, 2025

Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling
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未来的道路是为了了解托尔类受体驱动的系统性自身免疫.

Jessica A Hamerman1, Gregory M Barton2

  • 1Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA 98101, USA; Department of Immunology, University of Washington, Seattle, WA 98109, USA.

Current opinion in immunology
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概括

哺乳动物的托尔类受体 (TLRs) 3,7,8,9和13可以触发自身免疫性疾病,当他们错误地识别自我核酸 (NA). 了解这些途径对于开发系统性自身免疫性疾病的治疗方法至关重要.

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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
  • 这是一种自身免疫力.

背景情况:

  • 五个Toll类受体 (TLRs3,7,8,9,13) 识别核酸 (NA),启动免疫反应.
  • 通过TLRs对自我NA的失调识别可以导致自身免疫和自身炎症性疾病.

研究的目的:

  • 审查了解NA感应TLRs在自身免疫性疾病发病过程中的作用的最新进展.
  • 突出这些受体对不同临床表型的贡献.

主要方法:

  • 对TLRs和核酸识别的当前文献的综述.
  • 鼠标和人类研究的比较分析.

主要成果:

  • 通过自身RNA激活TLR7/8和通过自身DNA激活TLR9,都与全身性红斑狼,全身性青少年异常性关节炎和巨细胞激活综合征有关.
  • 对比研究揭示了老鼠和人类之间保存和分离的途径.

结论:

  • 感应NA的TLR在弥合先天免疫和自身免疫方面发挥着至关重要的作用.
  • 需要进一步的研究来弥补了解疾病机制的差距,并开发有针对性的治疗方法.