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Related Concept Videos

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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Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

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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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Lineage Commitment01:21

Lineage Commitment

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Commitment is the  process whereby stem cells:
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Multipotency of Hematopoietic Stem Cells01:19

Multipotency of Hematopoietic Stem Cells

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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...
3.5K
Notch Signaling Pathway03:14

Notch Signaling Pathway

4.6K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
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The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

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Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Related Experiment Video

Updated: Nov 6, 2025

Retroviral Infection of Murine Embryonic Stem Cell Derived Embryoid Body Cells for Analysis of Hematopoietic Differentiation
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Regulatory signaling pathways in hematopoietic stem cell development.

Chun Xia Zhang1,2, Feng Liu1

  • 1State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.

Yi Chuan = Hereditas
|May 11, 2021
PubMed
Summary

Hematopoietic stem cells (HSCs) generate blood cells through hematopoiesis. Signaling pathways like BMP, Notch, and Wnt are crucial for HSC development and blood disease treatment.

Keywords:
BMPNotchWnthematopoietic stem cellsignaling pathways

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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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Combining Intravital Fluorescent Microscopy IVFM with Genetic Models to Study Engraftment Dynamics of Hematopoietic Cells to Bone Marrow Niches
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Last Updated: Nov 6, 2025

Retroviral Infection of Murine Embryonic Stem Cell Derived Embryoid Body Cells for Analysis of Hematopoietic Differentiation
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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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Combining Intravital Fluorescent Microscopy IVFM with Genetic Models to Study Engraftment Dynamics of Hematopoietic Cells to Bone Marrow Niches
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Area of Science:

  • * Developmental Biology
  • * Stem Cell Biology
  • * Hematology

Background:

  • * The blood system is vital for oxygen transport, immune defense, and maintaining internal homeostasis.
  • * Hematopoietic stem cells (HSCs) are multipotent stem cells responsible for generating all blood cell types throughout life.
  • * Aberrations in hematopoiesis, the process of blood cell development, can lead to various hematological diseases.

Purpose of the Study:

  • * To systematically review the regulatory roles of key signaling pathways in embryonic hematopoietic development.
  • * To enhance understanding of the molecular mechanisms governing HSC fate determination and generation.
  • * To provide insights for the diagnosis and treatment of blood disorders.

Main Methods:

  • * Review of recent scientific literature focusing on hematopoietic development.
  • * Analysis of studies utilizing mouse and zebrafish models.
  • * Examination of the roles of Bone Morphogenetic Protein (BMP), Notch, and Wnt signaling pathways.

Main Results:

  • * BMP, Notch, and Wnt signaling pathways are identified as critical regulators in HSC fate determination and generation.
  • * These pathways are essential for the production, development, and maturation of blood cells during embryonic stages.
  • * Studies in mice and zebrafish provide valuable models for dissecting these regulatory networks.

Conclusions:

  • * A comprehensive understanding of signaling pathway regulation in hematopoiesis is crucial for advancing blood disease research.
  • * The findings offer guidance for potential clinical applications in diagnosing and treating hematological conditions.
  • * Further research into the intricate regulatory network of hematopoietic development holds promise for therapeutic strategies.