Models for the study of tendinopathy

Area of Science:

• Orthopedics
• Sports Medicine
• Regenerative Medicine

Background:

• Tendinopathy, characterized by activity-related pain and tendon degeneration (tendinosis), is poorly understood.
• Current research highlights a shift from inflammation (tendinitis) to degeneration as the primary pathology.
• There is a critical need for effective preclinical models to study tendinosis and its causes.

Purpose of the Study:

• To provide a comprehensive overview of existing preclinical models for tendinopathy research.
• To evaluate the strengths and limitations of various in vitro, ex vivo, and in vivo models.
• To identify opportunities for improving current models to advance tendinopathy treatment.

Main Methods:

• Systematic review of literature on tendinopathy preclinical models.
• Hierarchical organization of models from in vitro to ex vivo and in vivo.
• Analysis of rationale, findings, advantages, and disadvantages for each model type.

Main Results:

• Overview of diverse preclinical models, including cell cultures, tissue explants, and animal studies.
• Discussion of specific findings and limitations associated with each model.
• Identification of the complexity and multifactorial nature of tendinopathy, suggesting no single model is sufficient.

Conclusions:

• Improving existing preclinical models is essential for advancing the understanding of tendinosis.
• Enhanced models can facilitate the development of novel prevention and treatment strategies for tendinopathy.
• The ultimate goal is to reduce the incidence and impact of tendinopathy in humans.