Open Access

Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review)

  • Authors:
    • Huan Du
    • Xiyue Yang
    • Jinjia Fan
    • Xiaobo Du
  • View Affiliations

  • Published online on: July 23, 2021     https://doi.org/10.3892/mmr.2021.12316
  • Article Number: 677
  • Copyright: © Du et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Tight junctions (TJs) are an important component of cell connectivity; they maintain cell polarity, permeability and adhesion, and participate in the regulation of cell proliferation and differentiation. The claudin (CLDN) family is integral to TJs, and CLDN6 is an important member of this family. Abnormal expression of CLDN6 can destroy the integrity of TJs through various mechanisms and can serve multiple roles in the occurrence and development of tumours. CLDN6 is widely expressed in various tumours but rarely expressed in healthy adult tissues. The aim of this review is to critically examine the recent literature on CLDN6, including its structure, expression in different tumours, regulatory mechanisms and therapeutic prospects. Although some conclusions are controversial, in certain tumours, such as liver, ovarian, endometrial and oesophageal cancer, and atypical teratoid/rhabdoid tumours, research consistently shows that CLDN6 is expressed in tumour tissues but is not expressed or is expressed at low levels in surrounding tissues. In these tumours, CLDN6 has potential as a carcinoembryonic antigen and a therapeutic target.
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September-2021
Volume 24 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Du H, Yang X, Fan J and Du X: Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review). Mol Med Rep 24: 677, 2021
APA
Du, H., Yang, X., Fan, J., & Du, X. (2021). Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review). Molecular Medicine Reports, 24, 677. https://doi.org/10.3892/mmr.2021.12316
MLA
Du, H., Yang, X., Fan, J., Du, X."Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review)". Molecular Medicine Reports 24.3 (2021): 677.
Chicago
Du, H., Yang, X., Fan, J., Du, X."Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review)". Molecular Medicine Reports 24, no. 3 (2021): 677. https://doi.org/10.3892/mmr.2021.12316