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相关概念视频

B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
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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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Differentiation of Common Myeloid Progenitor Cells01:15

Differentiation of Common Myeloid Progenitor Cells

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Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
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Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

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Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
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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.
Naive T cells that have not yet encountered an antigen express two primary CD...
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Humoral Immune Responses01:36

Humoral Immune Responses

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Overview
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Updated: May 20, 2025

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
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使用BCMA解码血细胞成熟动态.

Sebastian R Schulz1, Shannon R Menzel1, Jens Wittner1

  • 1Division of Molecular Immunology, Internal Medicine 3, University Hospital Erlangen, Nikolaus-Fiebiger Center, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany.

Frontiers in immunology
|March 26, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种新的BCMA记者小鼠来跟踪血细胞的发育. 该工具有助于了解影响血细胞成熟和寿命的因素,这对抗体产生至关重要.

关键词:
在BCMA (TNFRSF17) 中.抗体分泌细胞 (ASC) 是一种骨髓 骨髓 骨髓 骨髓 骨髓血细胞是血细胞的组成部分.脊髓 脊髓 脊髓 是一个幸存率 幸存率 生存率胸腺 (thymus) 是一个神经系统.

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相关实验视频

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In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
10:26

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells

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Flow Cytometric Characterization of Murine B Cell Development
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The Isolation, Differentiation, and Quantification of Human Antibody-secreting B Cells from Blood: ELISpot as a Functional Readout of Humoral Immunity
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The Isolation, Differentiation, and Quantification of Human Antibody-secreting B Cells from Blood: ELISpot as a Functional Readout of Humoral Immunity

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科学领域:

  • 免疫学 免疫学 免疫学
  • 细胞生物学 细胞生物学

背景情况:

  • 血细胞在感染或接种疫苗后对抗体产生至关重要.
  • 血细胞在寿命和新陈代谢方面的异质性受到内在和外在因素的调节.
  • 已知B细胞成熟抗原 (BCMA) 能够支持长寿的血细胞.

研究的目的:

  • 开发一种新的记者小鼠模型,用于跟踪血细胞终端成熟.
  • 为了研究在血细胞发育过程中BCMA的表达模式.
  • 探索体内微环境在血细胞成熟中的作用.

主要方法:

  • 构建一个BCMA记者老鼠 (BCMA:Tom),该老鼠标记抗体分泌细胞.
  • 使用流细胞计和先进的成像技术进行分析.
  • 与Blimp1-GFP记者共同分析以跟踪血细胞的发育.

主要成果:

  • BCMA:Tom表达是针对抗体分泌细胞的特异性,并且因IgH同型而异.
  • 随着血细胞的成熟,BCMA的表达增加.
  • 报告员系统强调了体内微环境对于血细胞完全成熟的重要性.

结论:

  • BCMA:姆记者小鼠是研究血细胞发育和成熟的宝贵工具.
  • 本报告促进了对调节血细胞异质性和寿命的机制的更深入的理解.
  • 通过流细胞计和成像技术,可以实现血细胞的高级跟踪.