Overexpression of E2F-1 in glioma triggers apoptosis and suppresses tumor growth in vitro and in vivo

Nat Med. 1998 Jun;4(6):685-90. doi: 10.1038/nm0698-685.

Abstract

The transfer of apoptosis genes to tumors is one of the most promising strategies for cancer gene therapy. We have shown that massive apoptosis occurs when wild-type p53 expression is induced in glioma cells carrying a p53 gene mutation. However, adenovirus-mediated p53 gene transfer is ineffective in causing apoptosis in glioma cells that retain a wild-type p53 genotype. We evaluated the effect of E2F-1 overexpression on the growth of gliomas in vitro and in vivo. In the in vitro study, the adenovirus-mediated transfer of exogenous E2F-1 protein precipitated generalized apoptosis in gliomas. The treatment with Ad5CMV-E2F-1 of nude mice carrying subcutaneous gliomas arrested tumor growth. Our results indicate that E2F-1 has anti-glioma activity in vitro and in vivo.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenoviruses, Human / genetics
  • Animals
  • Apoptosis / genetics
  • Apoptosis / physiology*
  • Carrier Proteins*
  • Cell Cycle Proteins / genetics
  • Cell Cycle Proteins / physiology
  • Cell Death / genetics
  • Cell Death / physiology
  • Cell Survival / genetics
  • Cell Survival / physiology
  • Cyclin-Dependent Kinase Inhibitor p16 / metabolism
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / physiology
  • Disease Models, Animal
  • E2F Transcription Factors
  • E2F1 Transcription Factor
  • Gene Expression / genetics
  • Genes, Tumor Suppressor
  • Genetic Therapy
  • Genetic Vectors / genetics
  • Glioma / genetics*
  • Glioma / physiopathology
  • Glioma / therapy
  • Humans
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • Oncogene Protein p21(ras) / metabolism
  • Recombinant Fusion Proteins / genetics
  • Retinoblastoma Protein / metabolism
  • Retinoblastoma-Binding Protein 1
  • Transcription Factor DP1
  • Transcription Factors / genetics*
  • Transcription Factors / physiology
  • Transfection / genetics
  • Tumor Cells, Cultured

Substances

  • Arid4a protein, mouse
  • Carrier Proteins
  • Cell Cycle Proteins
  • Cyclin-Dependent Kinase Inhibitor p16
  • DNA-Binding Proteins
  • E2F Transcription Factors
  • E2F1 Transcription Factor
  • E2F1 protein, human
  • E2f1 protein, mouse
  • Recombinant Fusion Proteins
  • Retinoblastoma Protein
  • Retinoblastoma-Binding Protein 1
  • Transcription Factor DP1
  • Transcription Factors
  • Oncogene Protein p21(ras)