Glutathione-S-transferases and Chemotherapy Resistance of Hodgkin's Lymphoma Cell Lines

Toralf Bernig1, Stephanie Ritz1, Grit Brodt1

  • 1Department of Pediatrics, Martin Luther University Halle-Wittenberg, Halle, Germany.

Anticancer Research
|July 29, 2016
PubMed
Abstract

Insights

Glutathione-S-transferases (GSTs) contribute to chemoresistance in Hodgkin

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Glutathione-S-transferases (GSTs) are implicated in tumor multidrug resistance, drug detoxification, and apoptosis regulation.
  • Understanding GST involvement in Hodgkin's lymphoma (HL) is crucial for overcoming treatment resistance.

Purpose of the Study:

  • To investigate the role of GSTs in the apoptosis of Hodgkin's lymphoma (HL) cells.
  • To evaluate the potential of GST inhibitors in overcoming chemoresistance in HL.

Main Methods:

  • Assessed GST isoform expression in HL cell lines using DNA microarray and quantitative reverse transcription-polymerase chain reaction (qRT-PCR).
  • Evaluated the in vitro effect of the GST inhibitor ethacrynic acid (EA) on HL cell survival and chemosensitivity.

Main Results:

  • Higher expression of GST isoforms was observed in chemoresistant HL cells, suggesting a role in chemoresistance.
  • Ethacrynic acid (EA) significantly enhanced cisplatin efficacy in GST-expressing chemoresistant HL cells.

Conclusions:

  • GSTs are associated with chemoresistance in Hodgkin's lymphoma.
  • Combined therapy with chemotherapy and GST inhibitors like EA shows promise for treating chemoresistant HL.

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