A New Preclinical Paradigm for Testing Anti-Aging Therapeutics

Warren Ladiges, Jessica M. Snyder, Erby Wilkinson, Denise Imai, Tim Snider, Xuan Ge, Marcia Ciol, Christina Pettan-Brewer, Smitha P.S. Pillai, John Morton, Ellen Quarles, Peter Rabinovitch, Laura Niedernhofer, Denny Liggitt

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Testing drugs for anti-aging effects has historically been conducted in mouse life-span studies, but are costly and time consuming, and more importantly, difficult to recapitulate in humans. In addition, life-span studies in mice are not well suited to testing drug combinations that target multiple factors involved in aging. Additional paradigms for testing therapeutics aimed at slowing aging are needed. A new paradigm, designated as the Geropathology Grading Platform (GGP), is based on a standardized set of guidelines developed to detect the presence or absence of low-impact histopathological lesions and to determine the level of severity of high-impact lesions in organs from aged mice. The GGP generates a numerical score for each age-related lesion in an organ, summed for total lesions, and averaged over multiple mice to obtain a composite lesion score (CLS). Preliminary studies show that the platform generates CLSs that increase with the age of mice in an organ-dependent manner. The CLSs are sensitive enough to detect changes elicited by interventions that extend mouse life span, and thus help validate the GGP as a novel tool to measure biological aging. While currently optimized for mice, the GGP could be adapted to any preclinical animal model.

Original languageEnglish (US)
Pages (from-to)760-762
Number of pages3
JournalThe journals of gerontology. Series A, Biological sciences and medical sciences
Issue number6
StatePublished - Jun 1 2017
Externally publishedYes


  • Aging
  • Aging lesions in mice
  • Anti-aging therapeutics
  • Geropathology Grading Platform
  • Preclinical drug testing

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology


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