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Claudin-4 as therapeutic target in cancer

A Neesse1, H Griesmann, T M Gress

  • 1Department of Gastroenterology, Endocrinology and Metabolism, Philipps University Marburg, Baldinger Str., 35043 Marburg, Germany.

Archives of Biochemistry and Biophysics
|January 31, 2012
PubMed
Abstract

Insights

Claudin-4, a tight junction protein, is frequently altered in epithelial cancers. Its role in tumor invasion and as a receptor for Clostridium perfringens enterotoxin (CPE) offers new diagnostic and therapeutic strategies.

Area of Science:

  • Cell biology
  • Oncology
  • Molecular medicine

Background:

  • Intercellular junctions, including adherens and tight junctions, are crucial for cellular polarity, permeability, and tissue integrity.
  • Expression analysis of cell-adhesion proteins in epithelial cancers reveals complex patterns, offering targets for evaluation.
  • Tight junctions, composed of proteins like claudins, play vital roles in maintaining epithelial barrier function.

Purpose of the Study:

  • To review the role of claudin-4 in the pathophysiology of epithelial malignancies.
  • To explore the potential of claudin-4 in prognostic, diagnostic, and therapeutic applications, with a focus on pancreatic cancer.

Main Methods:

  • Literature review focusing on claudin-4.
  • Analysis of expression data in epithelial cancers.
  • Examination of claudin-4's role as a receptor for Clostridium perfringens enterotoxin (CPE).

Main Results:

  • Claudin-4 expression is dysregulated in various epithelial malignancies and premalignant lesions.
  • Claudin-4 appears to significantly influence tumor cell invasion and metastasis.
  • Claudin-4 serves as a receptor for CPE, suggesting targeted therapeutic potential.

Conclusions:

  • Claudin-4 is a promising molecular marker for the prognosis, diagnosis, and therapy of epithelial cancers.
  • The dysregulation of claudin-4 in cancer highlights its importance in disease progression.
  • Targeting claudin-4, potentially via its interaction with CPE, presents novel therapeutic avenues.

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