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Related Concept Videos

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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...
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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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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...
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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.
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Mouse Wound Models and Preparation of Single-Cell Suspensions
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Mesenchymal Stem Cell Extract Promotes Skin Wound Healing.

Zi Deng1, Kengo Iwasaki2, Yihao Peng3

  • 1Department of Oral Anatomy, Osaka Dental University, Osaka 573-1121, Japan.

International Journal of Molecular Sciences
|January 8, 2025
PubMed
Summary
This summary is machine-generated.

Mesenchymal stem cell extracts (MSC-ext) significantly accelerate skin wound healing by promoting cell proliferation and migration. This cell-free treatment shows therapeutic potential for skin defects.

Keywords:
cell extractmesenchymal stem cellsproliferationtherapeutic potentialwound healing

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Area of Science:

  • Regenerative Medicine
  • Wound Healing Research
  • Cell Biology

Background:

  • Mesenchymal stem cells (MSCs) secrete factors that promote skin wound healing.
  • These bioactive factors are stored intracellularly within MSCs.
  • Cell extracts (MSC-ext) offer a cell-free approach to harness these healing properties.

Purpose of the Study:

  • To investigate the efficacy of MSC-ext in promoting skin wound healing.
  • To evaluate the impact of MSC-ext on cellular proliferation and migration.
  • To assess MSC-ext's therapeutic potential as a cell-free treatment for skin defects.

Main Methods:

  • Collected cell extracts from MSCs (MSC-ext).
  • Assessed MSC-ext's effects on dermal fibroblast, epithelial cell, and endothelial cell proliferation and migration in vitro.
  • Utilized a mouse skin defect model to evaluate wound healing with MSC-ext treatment compared to phosphate-buffered saline (PBS).

Main Results:

  • MSC-ext significantly enhanced the proliferation of fibroblasts, epithelial cells, and endothelial cells.
  • Increased fibroblast and epithelial cell migration was observed with MSC-ext.
  • Accelerated wound closure, thicker dermis, increased collagen deposition (Picrosirius red staining), and higher cell proliferation (Ki67 staining) were noted in the MSC-ext treated group.

Conclusions:

  • MSC-ext effectively promotes skin wound healing by enhancing cellular proliferation and migration.
  • MSC-ext represents a promising cell-free therapeutic strategy for treating skin defects.
  • Further research into MSC-ext could lead to novel treatments for various skin injuries.