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Related Experiment Videos

[Palmoplantar keratosis].

H Nagai1, M Emi

  • 1Dept. of Molecular Biology, Nippon Medical School.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 2, 2000
PubMed
Summary
This summary is machine-generated.

Palmoplantar keratosis, a hereditary skin disorder, is linked to esophageal cancer. Research identified the TOC gene locus on chromosome 17q25, crucial for understanding both conditions.

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Area of Science:

  • Human genetics
  • Dermatology
  • Oncology

Context:

  • Palmoplantar keratosis is a common hereditary disorder of keratinization.
  • It presents in diffuse, punctate, and focal forms, with distinct clinical and genetic phenotypes.
  • Diffuse forms are further classified into epidermolytic and non-epidermolytic types.

Purpose:

  • To investigate the genetic basis of late-onset non-epidermolytic palmoplantar keratoderma.
  • To identify the causative gene locus (TOC) associated with tylosis and esophageal cancer.
  • To explore the potential role of the TOC gene in sporadic cancers.

Summary:

  • Late-onset non-epidermolytic palmoplantar keratoderma is associated with esophageal cancer.
  • The Tylosis with esophageal cancer (TOC) locus was mapped to chromosome 17q25.

Related Experiment Videos

  • Allelic loss in this region suggests the TOC gene's involvement in esophageal, ovarian, and breast cancers.

    • Impact:

    • Positional cloning and candidate gene analysis are expected to identify the TOC gene.
    • This research may reveal the TOC gene's role in cancer development.
    • Understanding the TOC gene could lead to new insights into hereditary skin disorders and cancer predisposition.