Development of a Geropathology Grading Platform for nonhuman primates.

Area of Science:

• Gerontology
• Comparative Pathology
• Translational Aging Research

Background:

• Nonhuman primates (NHPs) exhibit aging patterns and diseases similar to humans, making them valuable models for aging research.
• Existing geropathology grading platforms (GGPs) are validated for mice, but a similar standardized system is lacking for NHPs.
• NHPs possess extensive in-life data, enhancing their utility for correlating histopathology with aging events.

Purpose of the Study:

• To propose the adaptation of the mouse geropathology grading platform (GGP) for nonhuman primates (NHPs).
• To enhance the translational value of NHP models in aging research by standardizing age-related pathology assessment.
• To establish a national resource for age-related pathology in NHPs.

Main Methods:

• Expanding the scope of organs examined in NHP necropsies.
• Standardizing necropsy procedures, tissue trimming, and lesion terminology.
• Including commonly researched NHP species beyond rhesus macaques and marmosets.

Main Results:

• A framework for adapting the mouse GGP to NHPs has been outlined.
• Key components for successful adaptation include expanded organ examination and standardized terminology.
• The proposed adaptation aims to create a comprehensive resource for NHP geropathology.

Conclusions:

• Adapting the geropathology grading platform (GGP) for nonhuman primates (NHPs) is crucial for advancing aging research.
• Standardized histopathological assessment in NHPs will improve the correlation between preclinical findings and human aging.
• The development of a national NHP geropathology resource will complement existing datasets and accelerate discoveries in age-related diseases.