Study of in vitro and in vivo effects of the piperidine nitroxide Tempol - A potential new therapeutic agent for gliomas

M. B. Gariboldi, R. Ravizza, C. Petterino, M. Castagnaro, G. Finocchiaro, Elena Monti

Research output: Contribution to journalArticlepeer-review

Abstract

The identification of novel therapeutic agents for the management of malignant gliomas represents an area of active research. Here, we show that Tempol (4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl; TPL), a stable nitroxide free radical, inhibits the growth of C6 glioma cells both in vitro and in vivo. Morphological features of apoptosis were apparent in C6 cells following in vitro treatment with TPL. Cell death was preceded by dose-dependent increase in p21WAF1/CIP1 expression, without apparent stabilisation of the TP53 gene product. When C6 cells were grown as xenografts in nude mice, treatment with TPL induced a significant dose-dependent decrease in tumour growth, without signs of general or organ toxicity. Tumours from treated mice showed an increase in the number of apoptotic cells and a decrease in the rate of neo-vascularisation compared with tumours from control mice. Our findings suggest a potential use for TPL as a novel antiproliferative agent for the treatment of malignant gliomas.

Original languageEnglish
Pages (from-to)829-837
Number of pages9
JournalEuropean Journal of Cancer
Volume39
Issue number6
DOIs
Publication statusPublished - Apr 2003

Keywords

  • Antitumour effects
  • Glioma
  • p21
  • Tempol

ASJC Scopus subject areas

  • Cancer Research
  • Hematology
  • Oncology

Fingerprint Dive into the research topics of 'Study of in vitro and in vivo effects of the piperidine nitroxide Tempol - A potential new therapeutic agent for gliomas'. Together they form a unique fingerprint.

Cite this