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Related Concept Videos

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...
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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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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...
6.9K
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

4.3K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
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Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
1.9K
Production of Formed Elements01:34

Production of Formed Elements

2.4K
Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
Most HSCs commit to...
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Related Experiment Video

Updated: Oct 14, 2025

Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors

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Hematopoietic Stem Cells and Regeneration.

Mitch Biermann1, Tannishtha Reya1,2

  • 1Department of Medicine, University of California San Diego, La Jolla, California 92093.

Cold Spring Harbor Perspectives in Biology
|November 9, 2021
PubMed
Summary
This summary is machine-generated.

Hematopoietic stem cells (HSCs) regenerate organs and are key to regenerative medicine. This review covers HSC discovery, self-renewal mechanisms, and their therapeutic applications in cell therapy.

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Directed Differentiation of Primitive and Definitive Hematopoietic Progenitors from Human Pluripotent Stem Cells
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A Culture Method to Maintain Quiescent Human Hematopoietic Stem Cells
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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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Directed Differentiation of Primitive and Definitive Hematopoietic Progenitors from Human Pluripotent Stem Cells
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A Culture Method to Maintain Quiescent Human Hematopoietic Stem Cells
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Area of Science:

  • Hematopoietic stem cell (HSC) biology
  • Regenerative medicine
  • Cell therapy

Background:

  • Hematopoietic stem cells (HSCs) are rare bone marrow cells capable of regenerating organs.
  • HSC research pioneered quantitative single-cell science and adult stem cell biology.
  • Bone marrow transplantation is a foundational regenerative medicine technique.

Purpose of the Study:

  • To review the history of HSC discovery and bone marrow transplantation.
  • To explore the molecular and cellular mechanisms of HSC self-renewal.
  • To discuss the applications of HSCs and their derivatives in cell therapy.

Main Methods:

  • Literature review of historical discoveries and current research.
  • Analysis of molecular and cellular mechanisms governing HSC self-renewal.
  • Examination of therapeutic strategies utilizing HSCs and derivatives.

Main Results:

  • The discovery of HSCs is intertwined with the development of bone marrow transplantation.
  • Key molecular pathways regulating HSC self-renewal have been elucidated.
  • HSCs and their derivatives show significant promise for various cell therapies.

Conclusions:

  • HSCs are crucial for tissue regeneration and form the basis of established cell therapies.
  • Understanding HSC self-renewal mechanisms is vital for advancing regenerative medicine.
  • HSCs offer a powerful platform for developing novel cell-based therapeutic approaches.