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Related Experiment Videos

Mast cells and cutaneous malignancies.

Sydney Ch'ng1, Richard A Wallis, Lan Yuan

  • 1Wellington Regional Plastic, Maxillofacial and Burns Unit, Hutt Hospital, Wellington, New Zealand.

Modern Pathology : an Official Journal of the United States and Canadian Academy of Pathology, Inc
|November 1, 2005
PubMed
Summary
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Mast cells promote skin cancer development and spread through immunosuppression, angiogenesis, matrix degradation, and mitogenesis. Their precise role in tumor biology may vary depending on the microenvironment.

Area of Science:

  • Dermatology
  • Oncology
  • Immunology

Background:

  • Mast cells are immune cells found in the skin.
  • They accumulate around skin cancers like basal cell carcinoma, squamous cell carcinoma, and malignant melanoma.

Purpose of the Study:

  • To review the multifaceted role of mast cells in the development and progression of cutaneous malignancies.
  • To explore the mechanisms by which mast cells influence skin tumor growth and spread.

Main Methods:

  • Literature review of current evidence on mast cell involvement in skin cancer.
  • Analysis of mast cell contributions to immunosuppression, angiogenesis, extracellular matrix degradation, and mitogenesis.

Main Results:

  • Mast cells contribute to skin tumorigenesis via immunosuppression induced by UV-B radiation.

Related Experiment Videos

  • They promote angiogenesis by releasing vascular endothelial growth factor and proteases.
  • Mast cells degrade the extracellular matrix, facilitating tumor spread.
  • Mediators released by mast cells can stimulate melanoma cell proliferation.

    • Conclusions:

    • Mast cells play a significant accessory role in the development and progression of skin cancers.
    • Emerging data suggest mast cells may have dual roles, with their effects potentially modulated by the tumor microenvironment.