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相关概念视频

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...
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Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

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The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
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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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What is the Immune System?01:38

What is the Immune System?

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Overview
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Humoral Immune Responses01:36

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相关实验视频

Updated: Jan 22, 2026

Predictive Immune Modeling of Solid Tumors
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从单细胞水平发现适应性瘤免疫相互作用.

Tiankun Liu1,2, Yuan Pang1,3, Chang Zhou1,3

  • 1Biomanufacturing Center, Dept. of Mechanical Engineering, Tsinghua University, Beijing, P. R. China.

Advanced healthcare materials
|January 21, 2026
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种3D打印的单细胞模型,以研究瘤与免疫细胞的相互作用. 这种先进的模型揭示了细胞接近如何影响免疫反应,帮助免疫治疗研究.

关键词:
在3D生物打印中使用3D生物打印适应性免疫系统适应性免疫系统细胞相互作用 细胞相互作用黑色素瘤是一种黑色素瘤.一个单细胞的单细胞.

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Enrichment and Characterization of the Tumor Immune and Non-immune Microenvironments in Established Subcutaneous Murine Tumors
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科学领域:

  • 免疫瘤学 免疫瘤学
  • 生物技术是生物技术.
  • 细胞动态 细胞动态

背景情况:

  • 瘤适应性免疫表现出复杂的细胞,动态和空间异质性,挑战传统的共同培养模型.
  • 大规模模型掩盖了关键的细胞多样性,阻碍了免疫疗法机制的阐明和罕见细胞亚型的发现.
  • 了解单细胞相互作用对于揭示免疫反应和治疗结果至关重要.

研究的目的:

  • 开发和验证一个3D打印,单细胞分辨率免疫瘤学模型.
  • 研究树突细胞,T细胞和黑色素瘤细胞之间的自适应性免疫相互作用.
  • 分析细胞近距离对免疫细胞运动性和功能的影响.

主要方法:

  • 一个单细胞级免疫瘤学模型的3D打印.
  • 在模型中共同培养树突细胞,T细胞和黑色素瘤细胞.
  • 追踪和分析细胞移动性,空间分布和相互作用动态.

主要成果:

  • 该模型成功地回顾了适应性免疫的主要特征:识别,呈现,细胞毒性和免疫抑制.
  • 在细胞相互作用,运动性和空间分布之间观察到强烈的相关性.
  • 当细胞距离超过60微米时,接触时间显著增加 (4-6倍).
  • 在不同的树突细胞类型,T细胞亚型和刺激因素下,T细胞运动和生物功能显示一致.

结论:

  • 单细胞模型为研究免疫-瘤细胞相互作用提供了一个强大的平台.
  • 细胞接触事件的可控繁殖完善了对免疫突触的知识.
  • 该模型有助于验证免疫疗法机制并了解细胞表面受体的作用.