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Related Concept Videos

Overview of Hematopoiesis01:20

Overview of Hematopoiesis

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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...
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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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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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Production of Formed Elements01:34

Production of Formed Elements

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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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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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Erythropoiesis01:14

Erythropoiesis

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Red blood cells  (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia,...
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Simultaneous Assessment of Kinship, Division Number, and Phenotype via Flow Cytometry for Hematopoietic Stem and Progenitor Cells
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Understanding hematopoiesis from a single-cell standpoint.

Konstantinos D Kokkaliaris1, Daniel Lucas2, Isabel Beerman3

  • 1Cell Systems Dynamics Research Group, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland.

Experimental Hematology
|March 22, 2016
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Summary

Investigating functional heterogeneity in blood stem cells requires tracking individual cell development. New methods for cell labeling and clonal tracking are advancing the study of hematopoiesis.

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Area of Science:

  • Hematology
  • Stem Cell Biology
  • Cellular Heterogeneity

Background:

  • The hematopoietic system exhibits extensive cellular diversity, traditionally studied using cell surface markers.
  • Significant functional heterogeneity exists even within phenotypically identical hematopoietic stem and progenitor cells.
  • Understanding this heterogeneity is crucial for advancing hematopoiesis research.

Purpose of the Study:

  • To summarize methods for cell labeling and clonal tracking.
  • To discuss the application of these techniques in studying hematopoiesis.
  • To highlight recent efforts in dissecting individual cell functional properties.

Main Methods:

  • Cell labeling techniques for single-cell analysis.
  • Clonal tracking methodologies to follow cell progeny.
  • Webinar presentations by leading researchers in experimental hematology.

Main Results:

  • Overview of advanced cell tracking and labeling methods.
  • Discussion of how these methods reveal functional heterogeneity.
  • Insights into the study of hematopoiesis at the single-cell level.

Conclusions:

  • Single-cell analysis and clonal tracking are essential for understanding hematopoietic functional heterogeneity.
  • Emerging techniques offer powerful tools for dissecting cellular properties in hematopoiesis.
  • Continued research in this area promises to deepen our knowledge of blood cell development.