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Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
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Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter

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Does damage to DNA and other macromolecules play a role in aging? If so, how?

Judith Campisi1, Jan Vijg

  • 1Lawrence Berkeley National Laboratory, Life Sciences Division, 1 Cyclotron Road, Berkeley, CA 94720, USA. jcampisi@buckinstitute.org

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|February 21, 2009
PubMed

Insights

Aging may be linked to macromolecular damage, but cellular responses are increasingly recognized as crucial. Further research with new tools is needed to fully understand aging mechanisms and damage accumulation.

Area of Science:

  • Gerontology
  • Molecular Biology
  • Cellular Biology

Background:

  • The 'damage accumulation' hypothesis suggests aging is driven by macromolecular damage.
  • Recent cellular and molecular data have largely supported this hypothesis.
  • However, the specific types of damage most critical to aging remain unclear.

Purpose of the Study:

  • To review the current understanding of macromolecular damage in aging.
  • To discuss emerging challenges to the damage accumulation hypothesis.
  • To highlight the importance of cellular responses to damage.

Main Methods:

  • Review of existing cellular and molecular data.
  • Analysis of recent challenges to aging theories.
  • Discussion of future research directions and technological needs.

Main Results:

  • The 'damage accumulation' hypothesis is supported by considerable data.
  • Unanswered questions persist regarding the most impactful types of macromolecular damage.
  • Emerging research emphasizes cellular responses and damage sequelae over damage itself.

Conclusions:

  • While macromolecular damage is a significant factor in aging, its precise role is debated.
  • Cellular responses to damage are gaining prominence in aging research.
  • Advanced tools and methodologies are essential for a comprehensive understanding of aging phenotypes.

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