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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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Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

3.7K
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,...
3.7K
Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

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The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
6.9K
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...
1.7K
Development of Immunocompetence01:22

Development of Immunocompetence

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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
1.2K
Immunodeficiency Diseases01:25

Immunodeficiency Diseases

3.7K
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
3.7K

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相关实验视频

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Functional Characterization of Regulatory Macrophages That Inhibit Graft-reactive Immunity
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Functional Characterization of Regulatory Macrophages That Inhibit Graft-reactive Immunity

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缺少细胞免疫力 - - 发现和修复缺陷.

P D Greenberg1, S R Riddell

  • 1Fred Hutchinson Cancer Research Center and Departments of Medicine and Immunology, University of Washington, Seattle, WA 98195, USA. pgreen@u.washington.edu

Science (New York, N.Y.)
|July 27, 1999
PubMed
概括

细胞免疫对于对抗感染至关重要. 了解免疫缺陷的进展和新的细胞疗法正在改善T细胞疾病的治疗方法.

科学领域:

  • 免疫学 免疫学 免疫学
  • 传染性疾病 传染性疾病
  • 细胞疗法 细胞疗法

背景情况:

  • 细胞免疫力,特别是T细胞功能,对于预防危及生命的感染至关重要.
  • 无论是遗传性还是获得性免疫缺陷,都会严重损害T细胞功能,导致严重的感染.
  • 从历史上看,治疗的重点是管理传染性并发症,而不是解决潜在的免疫缺陷.

研究的目的:

  • 突出细胞免疫在传染病耐药性中的关键作用.
  • 为了强调了解免疫缺陷的细胞和分子基础的快速演变.
  • 引入新兴的免疫疾病分子和细胞疗法时代.

主要方法:

  • 审查目前对免疫缺陷的理解.
  • 对增强细胞免疫力的新技术的分析.
  • 讨论新兴的治疗策略.

主要成果:

  • 破坏T细胞功能会导致严重的感染,强调细胞免疫的重要性.
  • 在了解免疫缺陷的分子和细胞基础方面取得了重大进展.
  • 新技术正在促进新型细胞和分子疗法的发展.

结论:

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  • 细胞免疫对于宿主防御感染是必不可少的.
  • 该领域正在向创新的分子和细胞疗法过渡,以纠正免疫缺陷.
  • 这些疗法旨在解决异常基因,T细胞损失和恒温问题,从研究转向临床应用.