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Production of Formed Elements

Production 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...

Multipotency of Hematopoietic Stem Cells

Multipotency 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...

Source And Potency Of Stem Cells

Source And Potency Of Stem Cells

Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...

Adult Stem Cells

Adult Stem Cells

Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously renew...

Lineage Commitment

Lineage Commitment

Commitment is the process whereby stem cells:

Hematopoiesis

Hematopoiesis

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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Related Experiment Video

Updated: May 14, 2026

Pan-myeloid Differentiation of Human Cord Blood Derived CD34+ Hematopoietic Stem and Progenitor Cells

Pan-myeloid Differentiation of Human Cord Blood Derived CD34⁺ Hematopoietic Stem and Progenitor Cells

Published on: August 9, 2019

Lung stem and progenitor cells.

Karthikeyan Ardhanareeswaran¹, Maria Mirotsou

¹Duke Cardiovascular Research Center and Mandel Center for Hypertension and Atherosclerosis Research, Duke University Medical Center, Durham, NC, USA.

Respiration; International Review of Thoracic Diseases

|February 15, 2013

Summary

New research explores stem cells for adult lung repair. Understanding lung progenitors and stem cell therapy offers hope for regenerative medicine in treating lung diseases.

Area of Science:

Pulmonary Medicine
Regenerative Medicine
Stem Cell Biology

Background:

Recent advancements have deepened the understanding of stem cells within the adult lung.
Investigating endogenous lung progenitors and exogenous stem cell populations is crucial for lung repair research.

Purpose of the Study:

To review current knowledge on lung stem cell populations.
To explore the therapeutic potential of various stem cell types for lung regeneration.
To summarize the underlying cellular mechanisms involved in lung repair.

Main Methods:

Literature review of endogenous lung progenitor populations.
Analysis of the potential of endothelial progenitors, mesenchymal stem cells, and embryonic stem cells in lung therapy.
Synthesis of information on cellular mechanisms relevant to lung repair.

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Isolation & Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

Isolation & Characterization of Hoechst^low CD45^negative Mouse Lung Mesenchymal Stem Cells

Published on: October 26, 2011

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

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

Published on: July 8, 2012

Related Experiment Videos

Last Updated: May 14, 2026

Pan-myeloid Differentiation of Human Cord Blood Derived CD34+ Hematopoietic Stem and Progenitor Cells

Pan-myeloid Differentiation of Human Cord Blood Derived CD34⁺ Hematopoietic Stem and Progenitor Cells

Published on: August 9, 2019

Isolation & Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells

Isolation & Characterization of Hoechst^low CD45^negative Mouse Lung Mesenchymal Stem Cells

Published on: October 26, 2011

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

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

Published on: July 8, 2012

Main Results:

Identification of key lung epithelial progenitor populations.
Evaluation of the promise of different stem cell types for lung repair.
Summary of cellular mechanisms driving lung regeneration.

Conclusions:

Stem cell research offers significant promise for understanding and treating lung diseases.
Exploring both endogenous and exogenous stem cells is vital for advancing regenerative medicine for the lung.