American Journal Of Biomedical Science & Pharmaceutical Innovation
28
https://theusajournals.com/index.php/ajbspi
VOLUME
Vol.05 Issue06 2025
PAGE NO.
28-30
10.37547/ajbspi/Volume05Issue06-07
Modern Concepts of Skin Stem Cells And Their Role In
Epidermal Regeneration Covering The Latest Research
On Stem Cell Niches, Their Activation Mechanisms And
Applications In Tissue Engineering And Skin
Transplantation
Kasimova Ella Anatolyevna
Assistant Professor, Department of Biomedical Sciences, EMU University, Uzbekistan
Received:
17 April 2025;
Accepted:
24 May 2025;
Published:
30 June 2025
Abstract:
Skin stem cells play a key role in maintaining homeostasis and regeneration of the epidermis, ensuring
continuous renewal of the skin and restoration of damaged areas. The article discusses modern concepts of the
morphological and functional features of skin stem cell niches, as well as the mechanisms of their activation and
differentiation. The latest research aimed at using these cells in tissue engineering and transplantation
technologies, which open up new prospects for the treatment of skin diseases and injuries, is highlighted.
Particular attention is paid to biomedical approaches to managing regenerative processes using stem cells to
improve the effectiveness of therapy and create artificial skin substitutes.
Keywords:
Skin stem cells, epidermis, regeneration, stem cell niches, cell activation, tissue engineering, skin
transplantation, differentiation, skin restoration.
Introduction:
The skin is the largest organ of the human
div and performs many vital functions, including
barrier
protection
from
external
influences,
participation in the immune response, temperature
regulation and perception of sensory signals. The main
layer of the skin responsible for renewal and
restoration is the epidermis - a multi-layered
epithelium that is constantly renewed throughout life
due to the activity of stem cells.
Skin stem cells are a specialized population pool of cells
with a high capacity for self-reproduction and
multifaceted
differentiation.
They
provide
regeneration and homeostasis maintenance of the
epidermis, playing a key role in wound healing and
restoration of damaged skin areas. These cells are
localized in various specialized microenvironments -
niches, such as the basal layer of the epidermis, hair
follicles
and
sebaceous
glands.
The
niche
microenvironment maintains the stem properties of
cells
and
regulates
their
proliferation
and
differentiation through complex signaling pathways
and interactions with surrounding cells and the
extracellular matrix.
Modern methods of molecular biology, cell
visualization and genetic analysis allow us to better
understand the mechanisms of activation of skin stem
cells in response to damage and their role in dynamic
regeneration
processes.
Disturbances
in
the
functioning of these cells are associated with various
pathologies, including chronic wounds, psoriasis, and
skin cancer.
In addition, the study of skin stem cells is important for
the development of tissue engineering, a promising
field aimed at creating bioengineered skin substitutes
and effective transplantation methods. The use of stem
cells in regenerative medicine opens new horizons for
the treatment of burns, wounds, as well as genetic and
autoimmune skin diseases, improving the quality of life
of patients.
This article will review current understanding of the
morphology and functional characteristics of skin stem
cells, their niches, activation mechanisms, and role in
American Journal of Applied Science and Technology
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American Journal of Applied Science and Technology (ISSN: 2771-2745)
epidermal regeneration. Particular attention will be
paid to the latest advances in tissue engineering and
clinical application of these cells in transplantology.
Purpose of the study
To study modern concepts of skin stem cells, their
niches and activation mechanisms, and to assess the
prospects for their use in epidermal regeneration and
tissue engineering.
Materials and methods
The PubMed , Scopus and Web databases were used to
search for literature. of Science with filtering of articles
published in the last 10 years.
The analysis included the results of molecular
biological, histological and experimental studies on
models in in vitro and in vivo , which reveal the features
of the morphology of skin stem cells and their
functional activity. Particular attention was paid to
works describing methods of culturing stem cells, tissue
engineering models and clinical studies on the use of
cell technologies in the treatment of skin lesions.
When describing the mechanisms of stem cell
activation, data on signaling pathways that influence
cell
proliferation
and
differentiation
under
physiological conditions and tissue damage were taken
into account.
RESULTS AND DISCUSSION
Modern research confirms that skin stem cells are
represented by several populations located in different
niches of the epidermis, hair follicles and sebaceous
glands.
Each
of
these
niches
has
unique
microenvironments that support the stem properties
of the cells and regulate their activation in response to
physiological needs or skin damage.
The cells of the basal layer of the epidermis provide
constant renewal of the superficial layer of the skin due
to the ability to self-reproduce and differentiate. Hair
follicles contain a separate group of stem cells that
participate not only in hair growth, but also in the
reparation of the epidermis in case of damage. Pericytic
and mesenchymal components of niches play an
important role in the regulation of the cell cycle and
immune response.
Skin stem cell activation is mediated by a complex of
signaling pathways, including Wnt /β
- catenin , Notch ,
Hedgehog , and TGF-
β, which
ensure precise
coordination of proliferation and differentiation.
Disruptions in these pathways are associated with
pathological processes, including delayed wound
healing and cancer development.
Significant advances have been made in tissue
engineering through the development of methods for
culturing and differentiating skin stem cells, allowing
the creation of artificial skin substitutes that are close
in structure and function to natural skin. Cellular
technologies, including the use of mesenchymal stem
cells and induced pluripotent stem cells ( iPSCs ), have
shown high efficiency in regenerating damaged tissue
and reducing inflammatory responses.
Clinical studies show promise for the use of stem cells
in the treatment of burns, chronic wounds and
dermatological diseases, but challenges remain related
to the control of differentiation, immunogenicity and
graft integration.
Thus, further understanding of the biology of skin stem
cells and their niches, as well as the development of
safe and effective cell therapies, are critical for progress
in regenerative medicine and improving the quality of
life of patients with skin pathologies.
CONCLUSION
Skin stem cells play a key role in maintaining
homeostasis and regeneration of the epidermis,
ensuring continuous renewal of the skin and recovery
from damage. Modern research has significantly
expanded our understanding of stem cell morphology,
the characteristics of their niches and activation
mechanisms, which opens up new opportunities for the
development of effective methods of tissue
engineering and skin transplantation. The use of stem
cells in regenerative medicine contributes to the
creation of innovative approaches to the treatment of
burns, chronic wounds and other skin pathologies,
improving the quality of life of patients. Further study
of these cells and their microenvironments is important
for improving clinical technologies and developing
personalized therapy.
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