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Related Experiment Videos

Interactions between folate and aging for carcinogenesis.

Sang-Woon Choi1, Simonetta Friso

  • 1Vitamins and Carcinogenesis Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA. sang.choi@tufts.edu

Clinical Chemistry and Laboratory Medicine
|October 4, 2005
PubMed
Summary

Inadequate folate intake and aging are risk factors for cancer, potentially by disrupting one-carbon metabolism. Folate supplementation may help reverse these harmful effects.

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Area of Science:

  • Oncology
  • Nutritional Biochemistry
  • Molecular Biology

Background:

  • Inadequate folate intake and aging are established risk factors for various cancers.
  • Both factors are linked to hyperhomocysteinemia, DNA hypomethylation, and uracil misincorporation, suggesting a common pathway in carcinogenesis.
  • These conditions disrupt one-carbon metabolism, crucial for methylation and nucleotide synthesis.

Purpose of the Study:

  • To investigate the synergistic effects of inadequate folate and aging on one-carbon metabolism.
  • To explore the potential of folate supplementation in mitigating age-related and folate-deficiency-induced carcinogenic risks.

Main Methods:

  • Review of recent studies examining the interplay between folate status, aging, and cancer risk.
  • Analysis of biochemical and molecular markers associated with one-carbon metabolism.

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  • Evaluation of the impact of folate supplementation on these markers.

    • Main Results:

    • Inadequate folate and aging synergistically disrupt one-carbon metabolism homeostasis.
    • This disruption leads to biochemical and molecular aberrations, including altered gene expression relevant to carcinogenesis.
    • Modest folate supplementation demonstrated potential to reverse or ameliorate adverse effects.

    Conclusions:

    • The interaction between folate deficiency and aging significantly contributes to cancer risk through metabolic derangements.
    • Folate supplementation emerges as a potential strategy to counteract these risks.
    • Maintaining adequate folate levels is critical, especially in aging populations, to prevent cancer development.