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相关概念视频

What is the Immune System?01:38

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Cell-mediated Immune Responses01:40

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Cross-reactivity00:42

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Special Features of Adaptive Immunity01:20

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The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
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Antigens Involved in Adaptive Immunity01:26

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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.
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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.
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相关实验视频

Updated: May 5, 2026

Examination of Thymic Positive and Negative Selection by Flow Cytometry
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Examination of Thymic Positive and Negative Selection by Flow Cytometry

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自我耐受性和自身免疫性

M Kronenberg1

  • 1Department of Microbiology and Immunology, Jonsson Comprehensive Cancer Center, University of California, Los Angeles 90024-1747.

Cell
|May 17, 1991
PubMed
概括
此摘要是机器生成的。

了解自我耐受性和自身免疫性的进展揭示了免疫细胞耐受性和新型疾病模型的新机制. 这项研究为更有效的自身免疫性疾病治疗铺平了道路.

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Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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相关实验视频

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Examination of Thymic Positive and Negative Selection by Flow Cytometry

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Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity
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科学领域:

  • 免疫学 免疫学 免疫学
  • 自免疫性研究 自免疫性研究
  • 宽容机制 宽容机制

背景情况:

  • 自我耐受和自身免疫是快速发展的领域.
  • 了解这些过程对于开发新疗法至关重要.

研究的目的:

  • 探索最近在自我耐受和自身免疫研究方面的进展.
  • 突出新疾病模型的发展和对病原机制的理解.

主要方法:

  • 在T和B细胞中定义耐受性诱导机制.
  • 创建新的转基因动物模型 (转基因大鼠和老鼠).
  • 精确识别致病性淋巴细胞的抗原和受体.

主要成果:

  • 在T细胞和B细胞中确定了至少两种诱导耐受性的机制.
  • 开发了新型易受疾病 (HLA-B27转基因大鼠) 和抗病 (I-E/I-Ak NOD转基因小鼠) 菌株.
  • 在特定模型中精确定义了致病性淋巴细胞的抗原和抗原受体.

结论:

  • 新的知识大大提高了对自我耐受性和自身免疫性的理解.
  • 这些发现预计将导致对自身免疫性疾病开发更有效的疗法.