# Biomaterial Properties and Differentiation Strategies for Tenogenic Differentiation of Mesenchymal Stem Cells

## TL;DR

This paper reviews strategies to improve the use of stem cells and biomaterials for repairing tendon injuries by optimizing differentiation protocols.

## Contribution

The paper identifies key biomaterial properties and growth factor protocols for effective tenogenic differentiation.

## Key findings

- Ideal biomaterials should have a 3D structure with aligned micro- and nanofibers to promote tenogenic differentiation.
- Growth factor protocols should include an induction phase followed by a maintenance phase for matrix maturation.
- Optimal biomaterial stiffness requires further investigation.

## Abstract

Tendinopathy is a prevalent musculoskeletal condition that affects both aging populations and individuals involved in repetitive, high-intensity activities, such as athletes. Current treatment options primarily address symptom management or involve surgery, which carries a significant risk of complications and re-injury. This highlights the need for regenerative medicine approaches that combine stem cells, biomaterials, and growth factors. However, achieving effective tenogenic differentiation remains challenging due to the absence of standardized differentiation protocols. Consequently, a review of existing research has been conducted to identify optimal biomaterial properties and growth factor protocols. Findings suggest that the ideal biomaterial for tenogenic differentiation should feature a 3D structure to preserve tenogenic expression, incorporate a combination of aligned micro- and nanofibers to promote differentiation, and require further investigation into optimal stiffness. Additionally, growth factor protocols should include an induction phase to initiate tenogenic lineage commitment, followed by a maintenance phase to support matrix production and maturation.