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Updated: Aug 1, 2025

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
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A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

Published on: April 11, 2014

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Relevant Membrane Transport Proteins as Possible Gatekeepers for Effective Pharmacological Ascorbate Treatment in

Christian Leischner1, Luigi Marongiu1,2, Alban Piotrowsky1

  • 1Institute of Nutritional Sciences, Department of Nutritional Biochemistry, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany.

Antioxidants (Basel, Switzerland)
|April 28, 2023
PubMed

Insights

Pharmacological ascorbate shows promise for aggressive cancers by utilizing membrane transport proteins to deliver substances that induce cell death. Understanding these proteins could lead to new cancer diagnostics and therapies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Limited therapeutic options exist for many malignancies.
  • Pharmacological ascorbate demonstrates potential against aggressive tumors.
  • Membrane transport proteins are crucial for delivering therapeutic agents into cancer cells.

Purpose of the Study:

  • To review the role of membrane transport and channel proteins in pharmacological ascorbate cancer therapy.
  • To identify conveying proteins critical for ascorbate, hydrogen peroxide, and iron uptake in malignant cells.
  • To highlight potential diagnostic markers and therapeutic targets based on these proteins.

Main Methods:

  • Literature review of preclinical and clinical data.
  • Analysis of genetic and functional features of tumor tissues.
  • Identification of membrane transport proteins involved in anti-cancer effects.

Main Results:

  • Specific membrane transport proteins facilitate the entry of ascorbate, hydrogen peroxide, and iron into cancer cells.
  • These proteins are integral to inducing antiproliferative effects and ferroptosis.
  • Genetic and functional characteristics of these proteins vary in tumor tissues.

Conclusions:

  • Membrane transport proteins are key determinants of pharmacological ascorbate efficacy.
  • These proteins represent potential diagnostic markers for cancer.
  • Targeting these conveying proteins offers a promising therapeutic strategy for cancer treatment.
Keywords:
ascorbatecancerferroptosisironlabile iron pooltransportertumorvitamin C

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