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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...

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...

Lineage Commitment

Lineage Commitment

Commitment is the process whereby stem cells:

Bone Cells and Tissue

Bone Cells and Tissue

Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the periosteum and...

Regulation of Hematopoietic Stem Cells

Regulation 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...

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Related Experiment Video

Updated: May 19, 2026

Isolation of Blood-vessel-derived Multipotent Precursors from Human Skeletal Muscle

Isolation of Blood-vessel-derived Multipotent Precursors from Human Skeletal Muscle

Published on: August 21, 2014

Vascular precursor cells.

Hera Chaudhury¹, Lauren C Goldie, Karen K Hirschi

¹Center for Cell and Gene Therapy, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA.

|August 7, 2012

Summary

Identifying vascular precursor cells is key for regenerative medicine. This review details how these cells differentiate into vascular endothelial cells for better vascular regeneration therapies.

Keywords:

embryonic stem cells endothelial cell differentiation induced pluripotent stem cells vascular precursors

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Last Updated: May 19, 2026

Isolation of Blood-vessel-derived Multipotent Precursors from Human Skeletal Muscle

Isolation of Blood-vessel-derived Multipotent Precursors from Human Skeletal Muscle

Published on: August 21, 2014

Isolation of Perivascular Multipotent Precursor Cell Populations from Human Cardiac Tissue

Isolation of Perivascular Multipotent Precursor Cell Populations from Human Cardiac Tissue

Published on: October 8, 2016

Immunomagnetic Isolation of the Vascular Wall-Resident CD34+ Stem Cells from Mice

Immunomagnetic Isolation of the Vascular Wall-Resident CD34⁺ Stem Cells from Mice

Published on: December 22, 2023

Area of Science:

Stem cell biology
Regenerative medicine
Vascular biology

Background:

Human stem and progenitor cells are crucial for regenerative medicine.
A specific vascular stem cell population remains unidentified.
Various endogenous or ex vivo cells act as vascular precursors.

Purpose of the Study:

To review the regulation of vascular precursor cell differentiation.
To focus on differentiation toward a vascular endothelial cell phenotype.
To inform regenerative medicine strategies for vascular repair.

Main Methods:

Literature review of stem cell differentiation mechanisms.
Analysis of studies on vascular precursor cell behavior.
Synthesis of current knowledge on endothelial cell differentiation.

Main Results:

Several cell types exhibit vascular precursor potential.
Endogenous and ex vivo cells can promote vascular regeneration.
Mechanisms regulating differentiation toward endothelial cells are being elucidated.

Conclusions:

Understanding stem and progenitor cell regulation is vital for regenerative medicine.
Vascular precursor cells play a significant role in vascular regeneration.
Further research into differentiation pathways will advance vascular therapies.