Drug resistance in brain tumors

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50 Scopus citations


Resistance to chemotherapy in brain tumors is complex and may involve multiple mechanisms. For commonly used drugs, such as nitrosoureas and platinum compounds, major mechanisms may involve increaded DNA repair or removal of the drug-DNA adducts. For water soluble nitrosoureas and also for platinum compounds, other mechanisms, such as alteration in drug transport, may be important. Another major mechanism may involve glutathione and glutathione-S-transferase pathways. For vinca alkaloids and epipodophyllotoxins p-glycoprotein mediated MDR appears to be the major feature in drug resistance. In addition, alteration of tubulin and topoisomerase II have been described in resistance to vinca alkaloids and epipodophyllotoxins respectively. Recently, increased multidrug resistance associated protein gene expression has been found in glioma cells and brain tumor samples; its clinical significance requires further investigation.

Original languageEnglish (US)
Pages (from-to)165-176
Number of pages12
JournalJournal of neuro-oncology
Issue number2
StatePublished - Jun 1 1994


  • brain
  • drug resistance
  • glioma

ASJC Scopus subject areas

  • Neuroscience(all)
  • Oncology
  • Clinical Neurology
  • Cancer Research


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