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Our cells get stressed too! Implications for human disease

Michael B Kastan1

  • 1Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA. Michael.kastan@stjude.org

Blood Cells, Molecules & Diseases
|June 1, 2007
PubMed

Insights

Understanding the ATM gene

Area of Science:

  • Molecular Biology
  • Genetics
  • Cancer Research

Background:

  • Cellular DNA damage response pathways are crucial for maintaining genomic stability.
  • Studies of human cancer susceptibility syndromes have illuminated DNA damage response mechanisms.
  • Ataxia telangiectasia is a cancer-prone disorder linked to mutations in the ATM gene.

Purpose of the Study:

  • To elucidate the molecular controls of cellular responses to DNA damage.
  • To explore the role of ATM (ataxia telangiectasia mutated) protein kinase in DNA double-strand break responses.
  • To discuss the therapeutic potential of modulating ATM activity in various diseases.

Main Methods:

  • Review of existing literature on DNA damage response pathways.
  • Analysis of insights gained from studying human cancer susceptibility syndromes.
  • Discussion of the function of ATM protein kinase.

Main Results:

  • ATM is a central mediator of cellular responses to DNA double-strand breaks.
  • ATM pathway modulation offers potential therapeutic strategies.
  • Inhibitors of ATM may sensitize cells to chemotherapy or radiation and possess anti-neoplastic effects.
  • Activators of ATM could enhance cellular responses to oxidative stress.

Conclusions:

  • ATM plays a pivotal role in DNA damage response.
  • Targeting the ATM pathway presents opportunities for novel cancer therapies.
  • ATM modulation may have broader applications in treating diseases like metabolic syndrome.

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