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Updated: Aug 9, 2026

Induction and Testing of Hypoxia in Cell Culture
07:01

Induction and Testing of Hypoxia in Cell Culture

Published on: August 12, 2011

Regulation of E-cadherin expression by VHL and hypoxia-inducible factor

Miguel A Esteban1, Maxine G B Tran, Sarah K Harten

  • 1Renal Laboratory, Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0NN, UK.

Cancer Research
|April 6, 2006
PubMed

Insights

Loss of the von Hippel-Lindau tumor suppressor gene (VHL) in kidney cancer leads to reduced E-cadherin expression. This down-regulation, driven by hypoxia-inducible factor (HIF) activation, promotes tumor development and offers insights into cancer progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Mutations in the von Hippel-Lindau (VHL) tumor suppressor gene cause VHL hereditary cancer syndrome and are prevalent in sporadic clear cell renal cell cancers (CCRCC).
  • The precise mechanisms by which VHL loss promotes kidney tumor development remain incompletely understood.

Purpose of the Study:

  • To investigate the relationship between VHL inactivation and E-cadherin expression in kidney cancer.
  • To elucidate the role of hypoxia-inducible factor (HIF) in mediating VHL's effect on E-cadherin.

Main Methods:

  • Examined VHL inactivation and E-cadherin levels in precancerous kidney lesions from VHL disease patients.
  • Reexpressed VHL in VHL-defective CCRCC cell lines (RCC4, RCC10) to assess E-cadherin restoration.
  • Investigated the necessity and sufficiency of HIF activation in suppressing E-cadherin.

Main Results:

  • VHL inactivation in VHL disease kidney lesions correlated with decreased E-cadherin expression.
  • Restoring VHL in CCRCC cell lines reestablished E-cadherin levels.
  • Hypoxia-inducible factor (HIF) activation was found to be both necessary and sufficient for suppressing E-cadherin in renal cancer cells.

Conclusions:

  • VHL inactivation promotes kidney cancer development, partly through HIF-mediated suppression of E-cadherin.
  • This mechanism provides insight into how VHL loss and subsequent HIF activation contribute to renal tumorigenesis.
  • Altered E-cadherin expression due to hypoxia may impact other cancers and epithelial homeostasis.

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