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Related Experiment Video

Updated: May 6, 2026

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
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The NBS1-ATM connection revisited.

Simone Difilippantonio1, André Nussenzweig

  • 1Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. DifilipS@mail.nih.gov

Cell Cycle (Georgetown, Tex.)
|September 21, 2007
PubMed
Summary

Nijmegen Breakage syndrome (NBS) is a rare genetic disorder. Research clarifies the interaction between NBS1 and ATM in DNA damage response, crucial for understanding this condition.

Area of Science:

  • Genetics and Molecular Biology
  • Cancer Research
  • Cellular Biology

Background:

  • Nijmegen Breakage syndrome (NBS) is a rare autosomal recessive disorder.
  • NBS presents with microcephaly, immunodeficiency, and high cancer predisposition.
  • NBS shares features with Ataxia Telangiectasia (AT), initially considered an AT variant.

Purpose of the Study:

  • To elucidate the interplay between NBS1 and ATM in vivo.
  • To refine understanding of the DNA damage response pathway involving NBS1 and ATM.
  • To highlight recent advancements in NBS research.

Main Methods:

  • Comparative analysis of cellular and clinical features in NBS and AT patients.
  • Investigation of DNA damage response mechanisms, including ionizing radiation sensitivity and cell cycle checkpoints.

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  • Focus on the in vivo interaction of NBS1 and ATM gene products.

    • Main Results:

    • Cells from NBS and AT patients exhibit heightened sensitivity to ionizing radiation.
    • Genomic instability and cell cycle checkpoint defects are common in NBS and AT cells.
    • Evidence suggests NBS1 and ATM function within the same DNA damage response pathway.

    Conclusions:

    • NBS1 and ATM play critical roles in maintaining genomic stability.
    • Understanding the NBS1-ATM interaction is key to comprehending NBS pathogenesis.
    • Further research into this pathway may reveal therapeutic targets for NBS-associated malignancies.