Related Experiment Video
Updated: Aug 8, 2026
14:37
Directed Differentiation of Primitive and Definitive Hematopoietic Progenitors from Human Pluripotent Stem Cells
Published on: November 1, 2017
System of hemopoiesis and morphogenesis
B G Yushkov1, V A Chereshnev, N V Tyumentseva
1Institute of Immunology and Physiology, Ural Division of Russian Academy of Sciences, Ekaterinburg.
Bulletin of Experimental Biology and Medicine
|June 9, 2006
Summary
Transplanting hemopoietic stem cells can accelerate tissue repair. The effectiveness of this regenerative medicine approach depends on the specific tissue damage and involves various immune cells beyond just stem cells.
Area of Science:
- Regenerative Medicine
- Cell Biology
- Immunology
Background:
- Tissue damage triggers complex biological responses.
- Hemopoietic stem cells (HSCs) are known for their regenerative potential.
- The role of immune cells in tissue repair is increasingly recognized.
Purpose of the Study:
- To investigate the method of hemopoietic cell transplantation for accelerating damaged tissue recovery.
- To determine the specific cellular components responsible for the morphogenetic effect.
Main Methods:
- Transplantation of hemopoietic cells into damaged tissue models.
- Assessment of tissue recovery and morphogenetic changes.
- Analysis of cellular composition in the transplanted grafts.
Main Results:
- Hemopoietic cell transplantation demonstrated an acceleration of damaged tissue structure recovery.
- The morphogenetic effect was contingent upon the specific state of the damaged tissue.
- Key cellular contributors included hemopoietic stem cells, lymphocytes, macrophages, and mast cells.
Conclusions:
- Hemopoietic cell transplantation is a viable strategy for enhancing tissue regeneration.
- A multifaceted cellular response involving multiple immune cell types mediates the observed regenerative effects.
- Future research should explore the synergistic interactions of these cells in tissue repair.
Related Concept Videos
01:20Overview of Hematopoiesis
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...
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...
01:21Hematopoiesis
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...
01:34Production of Formed Elements
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...
Most HSCs commit to...
01:19Multipotency of Hematopoietic Stem Cells
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...
01:28Role of Hematopoietic Growth Factors
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,...
Thrombopoietin (TPO), mainly released by the liver,...
01:01Regulation of Hematopoietic Stem Cells
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...