Mesenchymal Stem Cells in Nerve Tissue Engineering: Bridging Nerve Gap Injuries in Large Animals

Area of Science:

• Regenerative Medicine
• Neuroscience
• Biomedical Engineering

Background:

• Cell-therapy-based nerve repair strategies show promise for severe nerve gap injuries.
• Extensive research exists using rodent models, but limited studies utilize large animal models.
• Large animal models are essential for clinical translation due to anatomical and physiological similarities to humans.

Purpose of the Study:

• To review stem cell-based nerve repair strategies in large animal models.
• To analyze the strengths and limitations of different therapeutic approaches and outcome measurements.
• To discuss future directions for cell therapy in nerve repair.

Main Methods:

• Literature review of studies employing large animal models (pigs, rabbits, dogs, monkeys) for nerve repair.
• Analysis of various stem cell types and delivery methods used in these models.
• Evaluation of outcome assessment techniques in large animal nerve repair studies.

Main Results:

• Large animal models provide more relevant data for human nerve repair compared to rodents.
• Specific stem cell types and tissue engineering approaches demonstrate potential in large animal models.
• Variability exists in outcome measurements, highlighting the need for standardized assessment.

Conclusions:

• Advancing cell therapy for nerve repair necessitates further research in large animal models.
• Standardized outcome measures are critical for comparing therapeutic efficacy across studies.
• This review consolidates current knowledge and identifies key areas for future investigation in large animal nerve repair research.