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Related Concept Videos

Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

3.3K
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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A Full Skin Defect Model to Evaluate Vascularization of Biomaterials In Vivo
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Biomaterials for Skin Substitutes.

Mohammadali Sheikholeslam1,2, Meghan E E Wright3, Marc G Jeschke1,2,4

  • 1Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.

Advanced Healthcare Materials
|December 23, 2017
PubMed
Summary
This summary is machine-generated.

Tissue-engineered skin substitutes are crucial for burn patients lacking donor tissue. Composite scaffolds combining natural and synthetic biomaterials offer a promising solution for functional skin regeneration, meeting diverse clinical needs.

Keywords:
natural biomaterialsskin regenerationskin substitutessynthetic biomaterialstissue engineering

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Extensive burns necessitate tissue-engineered skin substitutes due to donor site limitations.
  • Identifying suitable, cost-effective scaffold materials and cell sources remains a significant challenge.
  • Current options face limitations in meeting the complex requirements of functional skin regeneration.

Purpose of the Study:

  • To comprehensively review and evaluate various biomaterials for generating skin substitutes.
  • To assess the performance of natural biopolymers and synthetic polymers in tissue response and clinical applicability.
  • To guide researchers in selecting optimal materials or combinations for specific skin regeneration applications.

Main Methods:

  • Systematic review of existing literature on biomaterials for skin substitutes.
  • Comparative analysis of natural biopolymers and synthetic polymers based on cell response, mechanical properties, and chemical control.
  • Evaluation of biomaterials for their potential use in operating room settings.

Main Results:

  • Natural biopolymers generally exhibit superior cellular responses.
  • Synthetic polymers offer enhanced control over material composition and mechanical characteristics.
  • No single biomaterial currently fulfills all criteria for an ideal skin substitute.

Conclusions:

  • Composite scaffolds, integrating both natural and synthetic biomaterials, are likely to meet diverse clinical requirements for skin substitutes.
  • Tailoring scaffold design to wound characteristics, patient factors, and preparation techniques is essential.
  • This review serves as a directory to aid researchers in material selection for tissue-engineered skin.