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相关概念视频

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

5.5K
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...
5.5K

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相关实验视频

Updated: Sep 17, 2025

Enumeration of Neural Stem Cells Using Clonal Assays
10:32

Enumeration of Neural Stem Cells Using Clonal Assays

Published on: October 4, 2016

8.4K

在体性干细胞中检测和量化克隆选择.

Verena Körber1,2, Niels Asger Jakobsen3, Naser Ansari-Pour3,4

  • 1Division of Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany. verena.korber@ndcls.ox.ac.uk.

Nature genetics
|July 3, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了SCIFER,一种检测骨髓和大脑等组织内干细胞遗传选择的方法. 该工具有助于了解选定的克隆是如何出现和生长的,并提供有关组织衰老和疾病风险的见解.

更多相关视频

Clonal Analysis of Embryonic Hematopoietic Stem Cell Precursors Using Single Cell Index Sorting Combined with Endothelial Cell Niche Co-culture
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Clonal Analysis of Embryonic Hematopoietic Stem Cell Precursors Using Single Cell Index Sorting Combined with Endothelial Cell Niche Co-culture

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Characterizing Mutational Load and Clonal Composition of Human Blood
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Characterizing Mutational Load and Clonal Composition of Human Blood

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相关实验视频

Last Updated: Sep 17, 2025

Enumeration of Neural Stem Cells Using Clonal Assays
10:32

Enumeration of Neural Stem Cells Using Clonal Assays

Published on: October 4, 2016

8.4K
Clonal Analysis of Embryonic Hematopoietic Stem Cell Precursors Using Single Cell Index Sorting Combined with Endothelial Cell Niche Co-culture
09:32

Clonal Analysis of Embryonic Hematopoietic Stem Cell Precursors Using Single Cell Index Sorting Combined with Endothelial Cell Niche Co-culture

Published on: May 8, 2018

8.7K
Characterizing Mutational Load and Clonal Composition of Human Blood
07:58

Characterizing Mutational Load and Clonal Composition of Human Blood

Published on: July 11, 2019

7.5K

科学领域:

  • 体细胞遗传学体细胞遗传学
  • 干细胞生物学 干细胞生物学
  • 计算生物学是一种计算生物学.

背景情况:

  • 在体干细胞中积累的DNA变异可以改变组织功能.
  • 在恒温组织中选择的机制和时间尚不清楚.
  • 在非恶性组织中检测选择对于理解衰老和疾病发病至关重要.

研究的目的:

  • 引入SCIFER,一种可扩展的计算方法,用于识别个体组织中的遗传选择.
  • 推断干细胞动态,克隆大小和年龄,而无需对驱动事件的先前了解.
  • 分析人类骨髓和脑组织中的选择模式.

主要方法:

  • 开发一个可扩展的计算方法SCIFER.
  • 将SCIFER应用于来自非恶性人类骨髓和大脑的大量全基因组测序数据.
  • 对干细胞群体中DNA变异积累,选择和克隆动态的分析.

主要成果:

  • 在人类骨髓和大脑组织中检测到普遍的遗传选择.
  • 在血液形成中选择的克隆在整个生命中均启动,无论已知的驱动因素如何.
  • 大脑中的精选克隆,包括前恶性克隆,主要起源于生命早期 (从童年到年轻成人).

结论:

  • SCIFER是一种广泛适用的工具,用于检测和量化体质组织更新中的选择.
  • 人体组织的选择是动态的,并且在组织类型 (例如骨髓与大脑) 之间存在差异.
  • 了解选择动力学是理解组织平衡,衰老以及质瘤等疾病的早期阶段的关键.