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相关概念视频

T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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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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Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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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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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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Lineage Commitment01:21

Lineage Commitment

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Commitment is the  process whereby stem cells:
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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
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IL16促进等离子体细胞的分化.

Ying Gao1, Jie Li1,2, Fangxia Li1

  • 1University of Chinese Academy of Sciences, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China.

Immunology
|June 11, 2025
PubMed
概括

互白素16 (IL16) 促进B细胞分化成血细胞,增强抗体的产生. 这种细胞因子对免疫反应至关重要,特别是对抗病毒感染,如甲型流感.

关键词:
B 细胞 B 细胞 B 细胞IL16 IL16 IL16 IL16 IL16 IL16 IL16 IL16 IL16 IL16血细胞是血细胞的组成部分.

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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
  • 分子生物学分子生物学

背景情况:

  • B细胞终端分化成血细胞是一个复杂的过程,由转录因子,表观遗传学和细胞因子调节.
  • B细胞产生介质素16 (IL16),一种具有已知的化学吸引特性的细胞因子,但其在B细胞分化中的具体作用尚不清楚.

研究的目的:

  • 为了研究介质素16 (IL16) 在B细胞转化为血细胞的终端分化中的作用.
  • 确定IL16是否影响B细胞分化过程中关键转录因子和免疫球蛋白基因的表达.

主要方法:

  • 在初级B细胞中IL16的过度表达.
  • 分析B细胞分化标记物 (B220,CD138) 和血细胞转录因子 (Blimp-1,IRF4,Xbp-1).
  • 免疫球蛋白基因表达的评估.
  • 在体内研究使用感染流感A病毒的IL16缺乏的小鼠.

主要成果:

  • 过度表达IL16增强了B细胞分化成B220低CD138+等离子体细胞,独立于分泌的IL16.
  • 过度表达的IL16增加了血细胞转录因子 (Blimp-1,IRF4,Xbp-1) 和免疫球蛋白基因的表达.
  • 缺乏IL16的小鼠在感染流感A后,血细胞数量减少,病毒特异性抗体的产生减少.

结论:

  • 互白素16 (IL16) 在促进B细胞转化为血细胞的终端分化方面发挥着重要作用.
  • IL16对于有效的幽默性免疫反应至关重要,包括对病毒病原体产生抗体.