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Related Experiment Videos

[Nevoid basal cell carcinoma syndrome].

M Takata1

  • 1Department of Dermatology, Kanazawa University School of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 2, 2000
PubMed
Summary

Nevoid basal cell carcinoma syndrome arises from mutations in the human patched (PTC) gene. Loss of this tumor suppressor gene causes developmental defects and various cancers, including basal cell carcinomas.

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Area of Science:

  • Genetics and developmental biology
  • Oncology
  • Dermatology

Context:

  • Nevoid basal cell carcinoma syndrome (NBCC) is an autosomal dominant disorder.
  • Characterized by multiple basal cell carcinomas, jaw keratocysts, tumors, and developmental abnormalities.
  • Previously, the genetic basis for NBCC was unknown.

Purpose:

  • To identify the gene responsible for nevoid basal cell carcinoma syndrome.
  • To understand the role of this gene in tumor suppression and development.
  • To investigate the involvement of this gene in sporadic cancers.

Summary:

  • Germ line mutations in the human patched (PTC) gene cause NBCC.
  • PTC encodes a membrane receptor crucial for development and tumor suppression.
  • Haploinsufficiency leads to developmental defects; loss of the wild-type allele causes cancer.
  • PTC mutations are also found in sporadic basal cell carcinomas and medulloblastomas.

Impact:

  • Identifies the genetic cause of NBCC, paving the way for diagnostics and potential therapies.
  • Highlights the role of the PTC gene as a tumor suppressor.
  • Provides insights into the pathogenesis of both inherited and sporadic basal cell carcinomas and medulloblastomas.

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