Related Experiment Video
Updated: Oct 6, 2025

08:26
Isolation and Culture of Adult Epithelial Stem Cells from Human Skin
Published on: March 31, 2011
28.6K
Epithelial Stem Cells: Making, Shaping and Breaking the Niche.
Paula Ferraces-Riegas1, Anona C Galbraith1, David P Doupé2
1Department of Biosciences, Durham University, Durham, UK.
Advances in Experimental Medicine and Biology
|January 18, 2022
Summary
Epithelial stem cells actively shape their microenvironment, not just respond to it. This self-regulation is crucial for tissue maintenance and is often exploited by cancer cells.
Area of Science:
- Stem cell biology
- Tissue homeostasis
- Cancer microenvironment
Background:
- Epithelial stem cells are vital for adult tissue maintenance, balancing cell production and loss.
- Traditionally viewed as signal-receivers within their niche, responding to external cues.
- Emerging evidence highlights stem cells as active niche regulators.
Purpose of the Study:
- To explore the role of epithelial stem cells as active contributors to their microenvironment.
- To understand how stem cells influence niche cells and structure.
- To investigate the implications of stem cell-niche interactions in cancer.
Main Methods:
- Review of studies across diverse biological systems.
- Analysis of experimental data implicating stem cells in niche regulation.
- Examination of cancer models demonstrating microenvironment remodeling.
Main Results:
- Epithelial stem cells actively produce, act as, or regulate niche cells.
- This self-generated niche is essential for stem cell function and tissue repair.
- Tumor cells extensively manipulate their microenvironment, leveraging stem cell-niche interactions.
Conclusions:
- Epithelial stem cells are key architects of their own niche.
- Understanding these interactions is critical for tissue regeneration and cancer therapy.
- Stem cell-driven niche remodeling is a fundamental biological process.
Related Concept Videos
Stem Cell Niche
5.4K
The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
5.4K
Renewal of Skin Epidermal Stem Cells
2.7K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.7K
Maintenance of the ES Cell State
2.3K
The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
2.3K
Multipotency of Hematopoietic Stem Cells
3.3K
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...
3.3K
Adult Stem Cells
30.7K
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...
30.7K
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.2K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.2K

