SEARCH

SEARCH BY CITATION

Keywords:

  • E2F1;
  • apoptosis;
  • signalling pathways;
  • cancer;
  • molecular therapy
  • • 
    Introduction
  • • 
    Molecular mechanisms of E2F1 induced apoptosis
  • • 
    E2F1 sensitizes tumor cells to DNA damage
  • • 
    E2F1 guided death pathways in cancer
    • - 
      Activation of proapoptotic genes
    • - 
      Inhibition of survival signalling pathways
  • • 
    E2F1 apoptosis and new therapeutic strategies

Abstract

Defects in apoptotic programs contribute to a number of human diseases, ranging from neurodegenerative disorders to malignancy, and treatment failure. The genetic basis for apoptosis implies that cell death can be disrupted by mutations, raising the intriguing possibility that cell numbers can be regulated by factors that influence cell survival. It is well documented that the E2F1 transcription factor is a key regulator of apoptotic programs. E2F1-induced cell death occurs via multiple pathways, some of which involve the tumour suppressor p53, and autonomous of p53. This has led to the opinion that E2F1 functions as a tumour surveillance factor, detecting aberrant proliferation and engaging apoptotic pathways to protect the organism from developing tumours. Frequently, novel players are discovered that expand the interpretation of apoptosis control by E2F1. This information will help to produce new strategies to exploit E2F1-induced apoptosis for therapeutic benefit.