Aging and cancer: are sirtuins the link?

Ramon M Rodriguez1, Mario F Fraga

  • 1Cancer Epigenetics Laboratory, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), HUCA, Universidad de Oviedo, Oviedo, Spain.

Insights

Aging, a process of degeneration, limits lifespan and is linked to cancer. Sirtuins, NAD-dependent enzymes, are key molecular links between aging and cancer, influencing cell regulation and survival.

Area of Science:

  • Molecular Biology
  • Gerontology
  • Oncology

Background:

  • Aging is characterized by functional decline, impacting lifespan and increasing disease/cancer risk.
  • The molecular underpinnings of aging and its relationship with cancer remain incompletely understood.
  • Sirtuins, a class of NAD-dependent protein deacetylases, are implicated in fundamental cellular processes.

Purpose of the Study:

  • To review the role of sirtuins in the molecular mechanisms linking aging and cancer.
  • To explore the contribution of sirtuins and environmental factors to aging, senescence, and cancer development.
  • To highlight sirtuins as a potential therapeutic target connecting aging and cancer biology.

Main Methods:

  • Literature review of studies on sirtuins, aging, and cancer.
  • Analysis of sirtuin involvement in cell cycle regulation, stress response, and cell survival.
  • Examination of environmental factors influencing aging and cancer pathways.

Main Results:

  • Sirtuins play a critical role in regulating cell cycle, stress responses, and cell survival, processes central to aging and cancer.
  • Evidence suggests sirtuins act as a molecular bridge connecting the aging process with cancer development.
  • Environmental factors interact with sirtuin pathways, influencing senescence and oncogenesis.

Conclusions:

  • Sirtuins represent a novel molecular link between aging and cancer.
  • Understanding sirtuin function is crucial for deciphering the aging-cancer connection.
  • Targeting sirtuins may offer therapeutic strategies for age-related diseases and cancer.

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