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Related Concept Videos

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Clinical Applications of Epidermal Stem Cells

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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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Renewal of Skin Epidermal Stem Cells01:12

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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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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
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Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
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Mesenchymal Stem Cells01:19

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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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Related Experiment Video

Updated: Sep 19, 2025

Isolation and Culture of Adult Epithelial Stem Cells from Human Skin
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Stem Cell-Derived Extracellular Vesicles in Skin Antiaging Treatments.

Ji Yeong Park1, Se Young Jung1, Donghyeon Yoo1

  • 1Department of Biotechnology, College of Fisheries Science, Pukyong National University, Busan 48513, Republic of Korea.

ACS Nano
|June 17, 2025
PubMed
Summary

As global populations age, interest in antiaging skin technologies grows. Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) show promise for skin rejuvenation by addressing limitations of traditional methods.

Keywords:
antiaging therapiesexosomesextracellular vesiclesregenerative medicinesregenerative therapiesskin aestheticsskin agingskin rejuvenationstem cells

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Area of Science:

  • Dermatology
  • Regenerative Medicine
  • Biotechnology

Background:

  • Global population median age is rising, increasing demand for aesthetic enhancement and antiaging skin technologies.
  • Traditional antiaging approaches have benefits but also limitations that need addressing.
  • Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) are emerging as a potential advanced solution.

Purpose of the Study:

  • To review the molecular mechanisms of skin aging.
  • To provide an overview of current antiaging strategies, including their pros and cons.
  • To highlight the potential of MSC-EVs in skin antiaging and explore future directions.

Main Methods:

  • Literature review of molecular mechanisms of skin aging.
  • Analysis of traditional antiaging methods and their efficacy.
  • Examination of studies on MSC-EVs for skin rejuvenation.
  • Identification of therapeutic targets based on MSC-EV functions.

Main Results:

  • Skin aging involves complex molecular changes.
  • Conventional antiaging treatments have limitations in efficacy and safety.
  • MSC-EVs demonstrate significant antiaging effects in the skin microenvironment.
  • MSC-EVs offer novel therapeutic mechanisms for skin rejuvenation.

Conclusions:

  • MSC-EVs represent a promising frontier in antiaging skin technology.
  • Further research into MSC-EVs can lead to advanced, effective skin rejuvenation strategies.
  • Targeting specific pathways with MSC-EVs holds potential for future antiaging interventions.