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  11. Fructose-induced Glycation End Products Promote Skin-aging Phenotypes And Senescence Marker Expression In Human Dermal Fibroblasts

Fructose-Induced Glycation End Products Promote Skin-Aging Phenotypes and Senescence Marker Expression in Human Dermal Fibroblasts

Antonella Rella1, Dawn Layman1, Rong Dang1

  • 1Research and Development, The Estée Lauder Companies, Inc., Melville, NY 11747, USA.

International Journal of Molecular Sciences
|July 12, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

High fructose levels negatively impact skin cell function, leading to impaired growth, delayed wound healing, and increased senescence markers. This study reveals fructose

Area of Science:

  • Dermatology
  • Cell Biology
  • Biochemistry

Background:

  • Skin aging involves extracellular matrix stiffening and reduced cellular proliferation due to advanced glycation end products (AGEs).
  • AGE accumulation stems from sugar metabolism dysfunction, but direct effects of elevated sugars on skin cells need clarification.

Purpose of the Study:

  • To investigate the impact of elevated fructose levels on skin cell physiology in vitro.
  • To determine if high fructose levels adversely affect skin cell function and contribute to aging phenotypes.

Main Methods:

  • In vitro skin cell models were exposed to high fructose conditions.
  • Fluorescence microscopy was used to assess cellularity, morphology, and stress fibers.
  • An artificial wound model evaluated cell migration and closure rates.
Keywords:
advanced glycation end productsfibroblastsfructosesenescence

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  • Analysis included inflammatory cytokine levels, NFκB pathway activation, and senescence markers (p16, p21, p53).

    • Main Results:

    • High fructose altered cell morphology, cellularity, and stress fiber organization compared to controls.
    • Skin cells exhibited impaired growth and delayed wound closure under high fructose conditions.
    • Elevated fructose induced inflammatory cytokines, activated the NFκB pathway, and increased senescence markers p16, p21, and p53.

    Conclusions:

    • High fructose levels significantly impair critical skin cell functions, including growth, migration, and inflammatory responses.
    • This study demonstrates that high fructose induces cellular senescence and recapitulates aspects of skin aging associated with AGEs.
    • These findings highlight the detrimental role of dietary sugars in skin aging mechanisms.
    skin