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相关概念视频

Autoimmune Disorders01:29

Autoimmune Disorders

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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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Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

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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

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
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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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相关实验视频

Updated: Aug 6, 2025

Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity
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自我免疫对改造的自我

Laura Santambrogio1,2,3

  • 1Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY, USA.

Science (New York, N.Y.)
|March 17, 2023
PubMed
概括
此摘要是机器生成的。

蛋白质的改变会导致免疫系统攻击身体自身的蛋白质. 这种自我耐受性的崩是自身免疫性疾病的关键因素.

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科学领域:

  • 免疫学
  • 生物化学
  • 分子生物学

背景情况:

  • 免疫系统通常区分自我和非自我抗原.
  • 自我耐受性的破坏与自身免疫性疾病的发病有关.
  • 蛋白质转化后修饰 (PTM) 改变了蛋白质的结构和功能.

研究的目的:

  • 调查蛋白质的翻译后修饰如何影响免疫耐受性.
  • 了解PTM可以打破自我容忍的机制.

主要方法:

  • 修饰的自我蛋白质的分析.
  • 免疫学测试以评估T细胞和B细胞的反应.
  • 质谱测试用于识别和描述PTM.

主要成果:

  • 发现特定蛋白质的翻译后修饰会产生新抗原.
  • 这些新抗原可以引起自身免疫反应.
  • 该研究确定了破坏免疫耐受性的关键PTM.

结论:

  • 蛋白质的翻译后修改是破坏自我耐受性的重要机制.
  • 针对PTM可能为自身免疫性疾病提供新的治疗策略.