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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

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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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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Lymphoid Cells and Tissues01:18

Lymphoid Cells and Tissues

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Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
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Primary Lymphoid Organs01:16

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
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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.
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Updated: Jan 18, 2026

Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation
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大B细胞淋巴瘤微环境原型简介

Xubin Li1, Kartik Singhal2, Qing Deng3

  • 1Department of Lymphoma and Myeloma, University of Texas (UT) MD Anderson Cancer Center, Houston, TX, USA; Lymphoid Malignancies Program, UT MD Anderson Cancer Center, Houston, TX, USA.

Cancer cell
|September 8, 2025
PubMed
概括
此摘要是机器生成的。

这项研究揭示了大型B细胞淋巴瘤 (LBCL) 中明显的淋巴瘤微环境原型 (LymphoMAPs). 这些由细胞组成定义的原型,影响T细胞相互作用,并预测化学抗原受体 (CAR) T细胞疗法的结果.

关键词:
在CAR T细胞中.淋巴瘤淋巴瘤是什么微观环境是一个微观环境.单细胞RNA测序的一个单细胞RNA测序.

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科学领域:

  • 在瘤学瘤学.
  • 免疫学 免疫学 免疫学
  • 细胞生物学 细胞生物学

背景情况:

  • 大型B细胞淋巴瘤 (LBCL) 是异质的淋巴状恶性瘤.
  • 瘤微环境显著影响LBCL病原和进展.
  • 了解细胞组成对于向治疗至关重要.

研究的目的:

  • 为了全面描述LBCL瘤中的细胞多样性.
  • 为了确定细胞共发生的重复模式,称为淋巴瘤微环境原型简介 (LymphoMAPs).
  • 为了研究淋巴细胞MAPs,细胞通信和临床结果之间的关系,特别是在CAR T细胞治疗后.

主要方法:

  • 在232个瘤和对照活检上进行了单核多原子分析.
  • 分析的重点是淋巴状细胞,骨髓状细胞和非造血细胞区.
  • 淋巴瘤微环境原型 (LymphoMAPs) 根据细胞子集频率来定义.

主要成果:

  • 确定了三种刻板印象的淋巴细胞细胞组:FMAC (纤维细胞,巨细胞),LN (淋巴结结构) 和TEX (耗尽的T细胞).
  • 每个LymphoMAP都与不同的细胞-细胞通信模式有关,影响T细胞排除,支持或抑制.
  • 在CD19 CAR T细胞治疗后,淋巴MAP与临床结果有显著的关联.

结论:

  • 在LBCL瘤微环境中,表现出不同的,可复制的原型 (LymphoMAPs).
  • 这些原型是由特定的细胞-细胞通信网络塑造的.
  • 淋巴MAPs作为预测生物标志物用于患者对LBCL中CAR T细胞治疗的反应.