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H2AX: functional roles and potential applications

Jennifer S Dickey1, Christophe E Redon, Asako J Nakamura

  • 1Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. dickeyj@mail.nih.gov

Chromosoma
|August 27, 2009
PubMed

Insights

Gamma-H2AX, a marker for DNA double-strand breaks, shows promise for monitoring cancer development and genotoxic stress. Its detection could aid in understanding disease progression and response to treatment.

Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • DNA double-strand breaks (DSBs) are critical DNA lesions.
  • Histone H2AX phosphorylation at serine 139 forms gamma-H2AX.
  • Gamma-H2AX serves as a sensitive biomarker for DSBs.

Purpose of the Study:

  • To review the clinical applications of gamma-H2AX detection.
  • To discuss the role of H2AX in homeostasis and disease.
  • To highlight gamma-H2AX as a tool for monitoring genotoxic events.

Main Methods:

  • Antibody-based detection of phosphorylated H2AX (gamma-H2AX).
  • Review of existing literature on gamma-H2AX in cancer and cellular stress.
  • Analysis of H2AX's role in biological processes.

Main Results:

  • Gamma-H2AX is a reliable indicator of DNA DSB induction.
  • Potential clinical applications in cancer monitoring and treatment response.
  • H2AX plays a role in maintaining cellular homeostasis and disease states.

Conclusions:

  • Gamma-H2AX detection is a valuable tool for identifying DNA damage.
  • Clinical utility in cancer diagnostics, prognostics, and monitoring genotoxicity.
  • Further research into H2AX's role can advance understanding of disease.

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