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相关概念视频

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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Hematopoiesis01:21

Hematopoiesis

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The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
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Lineage Commitment01:21

Lineage Commitment

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Commitment is the  process whereby stem cells:
3.0K
Overview of Hematopoiesis01:20

Overview of Hematopoiesis

4.1K
Hematopoiesis, or blood cell production, is a vital biological process that begins early in embryonic development and continues throughout life. This process generates the various types of cells found in blood, including red blood cells, white blood cells, and platelets from hematopoietic stem cells (HSCs).
Developmental Phases of Hematopoiesis
Initially, HSCs are formed in the embryonic yolk sac, a critical site for early blood cell production. These stem cells subsequently migrate to other...
4.1K
Multipotency of Hematopoietic Stem Cells01:19

Multipotency of Hematopoietic Stem Cells

3.1K
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.1K
Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

1.4K
Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
Thrombopoietin (TPO), mainly released by the liver,...
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相关实验视频

Updated: Jul 13, 2025

Bone Marrow Transplantation Procedures in Mice to Study Clonal Hematopoiesis
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克隆性血液形成,炎症和血液恶性病变

Rashmi Kanagal-Shamanna1, David B Beck2,3, Katherine R Calvo4,5

  • 1Department of Hematopathology and Molecular Diagnostics, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.

Annual review of pathology
|October 13, 2023
PubMed
概括

血液中的体质突变随着年龄的增长而积累,影响良性和恶性疾病. 本综述涵盖了克隆性血液形成和相关的炎症和血液学疾病.

关键词:
在 MDS MDS 中.在UBA1中,UBA1是UBA1的.这就是VEXAS.这是一种自身免疫性疾病.克隆性血液形成 (clonal hematopoiesis) 是一种细胞形成的过程.这是一种炎症炎症炎症炎症.骨髓分裂性综合征是什么?血细胞瘤的发生.

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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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科学领域:

  • 遗传学 遗传学是一种遗传学.
  • 血液学 血液学 血液学
  • 免疫学 免疫学 免疫学

背景情况:

  • 身体突变是随着年龄的增长而积累的遗传变异.
  • 传统上与癌症有关,但它们在与年龄相关的良性疾病中的作用越来越被认可.

研究的目的:

  • 审查血液中的体质突变及其与疾病的关联.
  • 专注于炎症性疾病,骨髓质疏松综合征和相关的血液学疾病.

主要方法:

  • 关于血液中的体质突变的文献综述.
  • 讨论克隆性血液形成 (CH) 和其影响.
  • 强调重叠的炎症和血液病状况.

主要成果:

  • 血液中的体质突变与各种与年龄相关的疾病有关.
  • 克隆造血 (CH) 是理解这些突变的一个关键概念.
  • 像VEXAS综合征,PNH和无质性贫血等疾病表明病理重叠.

结论:

  • 身体突变在临床血液学和病理学上具有重大影响.
  • 了解这些突变对于诊断和管理与年龄有关的疾病至关重要.
  • 对体突变的进一步研究将促进临床实践的进步.