Evolutionary Origins of Human Apoptosis and Genome-Stability Gene Networks

Strategic Insights -

Researchers in Porto Alegre, Brazil, have reconstructed the evolutionary scenario that linked apoptosis with genome stability pathways in a functional human gene/protein association network. The study, published in Nucleic Acids Research, reveals that the entanglement of DNA repair, chromosome stability, and apoptosis gene networks appears with the caspase gene family and the antiapoptotic gene BCL2. This evolutionary platform can be exploited to understand the genetic basis of cancer, with implications for the development of novel therapeutic strategies.

Key Takeaways:

  • The study demonstrates the co-option of genome stability and apoptosis during evolution, recruiting genes that merge both systems.
  • The entanglement of DNA repair, chromosome stability, and apoptosis gene networks appears with the caspase gene family and the antiapoptotic gene BCL2.
  • Several critical nodes that entangle apoptosis and genome stability are cancer genes, including ATM, BRCA1, BRCA2, MLH1, MSH2, MSH6, and TP53.
  • The study provides examples of how this evolutionary platform can be exploited to extend information on gene essentiality inferred from model organisms to human.
  • The findings have implications for the understanding of cancer biology and the development of novel therapeutic strategies.

Statistics:

  • The study focuses on the evolutionary origins of human apoptosis and genome-stability gene networks.
  • The research reconstructs the evolutionary scenario using computational methods and a functional human gene/protein association network.
  • The study identifies 7 critical nodes that entangle apoptosis and genome stability (ATM, BRCA1, BRCA2, MLH1, MSH2, MSH6, and TP53).
  • The research demonstrates the co-option of genome stability and apoptosis during evolution, recruiting genes that merge both systems.
  • The study provides several examples to exploit this evolutionary platform.

Sources:

  • M.A.A. Castro, et al. Evolutionary origins of human apoptosis and genome-stability gene networks. Nucleic Acids Research, 2008;36(19):6269-6283.
  • Nucleic Acids Research (Journal) - Oxford University Press, Great Clarendon St., Oxford OX2 6DP, England.