Concise Review: Stem Cell Trials Using Companion Animal Disease Models

Area of Science:

• Veterinary Medicine
• Regenerative Medicine
• Translational Research

Background:

• Companion animals develop diseases mirroring human conditions, offering valuable preclinical models.
• Existing research often uses induced models, limiting translatability to human therapies.
• Veterinary studies provide insights into stem cell therapy feasibility and safety.

Purpose of the Study:

• To review literature on stem cell therapies in companion animals (dogs and cats) from 2008-2015.
• To identify naturally occurring disease models analogous to human conditions.
• To assess the feasibility, safety, and efficacy of stem cell interventions in these models.

Main Methods:

• Literature review of studies involving stem cell therapies in dogs and cats.
• Exclusion of laboratory animals, induced diseases, cancer, and case reports.
• Analysis of stem cell types (MSC, OEC), disease models, and study designs.

Main Results:

• 19 studies met criteria, primarily in dogs (16/19), using mesenchymal stem-stromal cells (MSC, 17/19).
• Commonly studied conditions included osteoarthritis, inflammatory bowel disease, and kidney disease.
• Most stem cell therapies were reported as safe with beneficial patient responses.

Conclusions:

• Companion animals with naturally occurring diseases serve as realistic preclinical models for human stem cell research.
• Stem cell therapies in these models demonstrate feasibility, safety, and biologic activity.
• Improvements in manufacturing, study design, and regulatory compliance are necessary for optimal utilization.