Related Experiment Video
Updated: Jun 16, 2026
08:36
Generation of Integration-free Human Induced Pluripotent Stem Cells Using Hair-derived Keratinocytes
Published on: August 20, 2015
Human embryonic stem cell-derived keratinocytes: how close to clinics?
Graziella Pellegrini1, Michele De Luca
1Centre for Regenerative Medicine "Stefano Ferrari," University of Modena and Reggio Emilia, 41100 Modena, Italy.
Cell Stem Cell
|January 21, 2010
Summary
Human embryonic stem cells (hESCs) can become mature skin cells (keratinocytes) that form a functional epithelium in mice. This research highlights the potential of hESC-derived keratinocytes for future clinical applications in regenerative medicine.
Area of Science:
- Stem cell biology
- Dermatology
- Regenerative medicine
Background:
- Human embryonic stem cells (hESCs) hold promise for regenerative therapies.
- Generating functional skin tissues from stem cells is a significant challenge.
Purpose of the Study:
- To investigate the differentiation potential of hESCs into mature keratinocytes.
- To assess the ability of hESC-derived keratinocytes to form a pluristratified epithelium in vivo.
Main Methods:
- Utilized human embryonic stem cells (hESCs).
- Induced differentiation into keratinocytes.
- Grafted cells onto immunodeficient mice to evaluate epithelial formation.
Main Results:
- Successfully differentiated hESCs into mature keratinocytes.
- Demonstrated the formation of a pluristratified epithelium by these cells in vivo.
- Established proof-of-concept for generating functional skin tissue from hESCs.
Conclusions:
- hESCs can be differentiated into functional keratinocytes capable of forming a stratified epithelium.
- These findings support the potential clinical utility of hESC-derived keratinocytes for skin regeneration and therapeutic applications.
Related Concept Videos
01:19Clinical Applications of Epidermal Stem Cells
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own EpiSCs...
01:13Induced Pluripotent Stem Cells
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore called induced pluripotent stem...
01:06Induced Pluripotent Stem Cells
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic cells are...
Somatic cells are...
00:57Embryonic 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...
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...
00:58Embryonic Stem Cells
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
01:17Stem 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...