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Clinical Applications of Epidermal Stem Cells01:19

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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  1. Home
  3. A Highly Biocompatible Ce-crosslinked Collagen Implant With Exceptional Anti-calcification And Collagen Regeneration Capabilities For Aging Skin Rejuvenation.
  1. Home
  3. A Highly Biocompatible Ce-crosslinked Collagen Implant With Exceptional Anti-calcification And Collagen Regeneration Capabilities For Aging Skin Rejuvenation.

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Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
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Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis

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A highly biocompatible CE-crosslinked collagen implant with exceptional anti-calcification and collagen regeneration

Qi Wang1,2, Huiyu Yan1,2, Linyan Yao1,2

  • 1State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China. xiaojx@lzu.edu.cn.

Journal of Materials Chemistry. B
|April 17, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

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A novel biocompatible collagen implant using a new crosslinking agent (CE) effectively rejuvenates aging skin. This CE-crosslinked collagen promotes regeneration and reduces wrinkles without calcification, offering a safer alternative for skin treatments.

Area of Science:

  • Biomaterials Science
  • Dermatology
  • Regenerative Medicine

Background:

  • Skin aging involves wrinkles and laxity due to collagen degradation.
  • Conventional collagen crosslinking agents pose risks like cytotoxicity and calcification.
  • There is a need for safer, more effective collagen-based materials for skin rejuvenation.

Purpose of the Study:

  • To develop a highly biocompatible collagen implant for aging skin rejuvenation.
  • To evaluate a novel collagen crosslinking agent (CE) for enhanced stability, biocompatibility, and anti-calcification properties.
  • To assess the efficacy of CE-crosslinked collagen in promoting skin collagen regeneration.

Main Methods:

  • Synthesized a novel collagen crosslinking agent (CE) from chitosan quaternary ammonium salt and 1,4-butanediol diglycidyl ether.
  • Crosslinked collagen with CE and compared its properties (stability, injectability, viscosity) to glutaraldehyde (GA)-crosslinked collagen.
  • Assessed biocompatibility using HFF-1 cell proliferation and adhesion assays.
  • Conducted *in vivo* experiments to evaluate collagen regeneration and calcification in aged skin.

    • Main Results:

    • CE-crosslinked collagen implants demonstrated superior stability, durability, injectability, and viscosity compared to GA-crosslinked collagen.
    • CE-crosslinked collagen exhibited enhanced biocompatibility, promoting HFF-1 cell proliferation and adhesion.
    • *In vivo* studies confirmed significant collagen regeneration without inducing calcification.

    Conclusions:

    • The novel CE-crosslinked collagen implant is a safe and effective material for aging skin rejuvenation.
    • This innovative implant promotes collagen regeneration and reduces wrinkles, offering a promising advancement in aesthetic dermatology.
    • CE-crosslinking represents a significant improvement over conventional methods, minimizing risks associated with cytotoxicity and calcification.