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Related Concept Videos

Stem Cell Culture01:17

Stem Cell Culture

Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
Lineage Commitment01:21

Lineage Commitment

Commitment is the  process whereby stem cells:
Regulation of Hematopoietic Stem Cells01:01

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...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

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 types that...
Multipotency of Hematopoietic Stem Cells01:19

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...
Embryonic Stem Cells00:57

Embryonic Stem Cells

Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...

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Updated: May 28, 2026

Tracheotomy: A Method for Transplantation of Stem Cells to the Lung
03:45

Tracheotomy: A Method for Transplantation of Stem Cells to the Lung

Published on: February 25, 2007

Lung stem cells--from an evolving understanding to a paradigm shift?

Mairéad Hayes1, Gerard F Curley, John G Laffey

  • 1Lung Biology Group, Regenerative Medicine Institute, National Centre for Biomedical Engineering Science, National University of Ireland, University Road, Galway, Ireland.

Stem Cell Research & Therapy
|October 25, 2011
PubMed
Summary
This summary is machine-generated.

Researchers are exploring lung stem cells for regenerative medicine. Recent findings suggest a primitive stem cell in the human lung may regenerate injured lung tissue, challenging previous concepts.

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Published on: October 26, 2011

Area of Science:

  • Pulmonology
  • Stem Cell Biology
  • Regenerative Medicine

Background:

  • Identifying endogenous lung stem cells is crucial for lung regeneration.
  • Research focuses on patient-specific stem cells for treating lung injury and disease.
  • Advances in cell tracking have revealed potential stem cell niches in the lung.

Purpose of the Study:

  • To review current understanding of lung stem cells for regenerative purposes.
  • To discuss emerging evidence for a primitive stem cell in the human lung.
  • To explore the implications of these findings for lung repair and therapeutic strategies.

Main Methods:

  • Review of recent scientific literature on lung stem cell research.
  • Analysis of studies identifying and characterizing novel stem/progenitor cell populations.
  • In vivo cell fate determination techniques.

Main Results:

  • Evidence suggests a stem/progenitor cell population in submucous glands.
  • These findings challenge the notion of distinct progenitor populations regenerating specific lung regions.
  • Emerging data indicate a primitive human lung stem cell capable of multi-lineage differentiation and regeneration.

Conclusions:

  • The existence of a classical stem cell hierarchy in the lung is being reconsidered.
  • These findings have significant implications for lung repair and regenerative medicine.
  • Further research is needed to validate these emerging concepts and their therapeutic potential.