The Role of Bone Morphogenetic Protein (BMP)-12 in Accelerating Tendon Healing

This article highlights the critical need for biological augmentation in tendon healing and focuses on bone morphogenetic protein (BMP)-12 as a promising candidate.BMP-12 specifically induces tenogenic differentiation of stem cells by upregulating key tendon-related markers like Scleraxis, Mohawk, collagen type I, and Tenomodulin via the Smad1/5/8 pathway.Unlike other BMPs (e.g., BMP-2), BMP-12 exhibits low osteogenic and chondrogenic potential, significantly reducing the risk of heterotopic ossification, a common complication in bone-adjacent tendon repairs.Compared to other growth factors, BMP-12 offers superior specificity for tendon formation with a lower risk of excessive fibrosis or insufficient matrix formation.The synergistic application of BMP-12 with mesenchymal stem cells (MSCs) is proposed as a logical strategy to enhance functional tendon regeneration.MSCs provide a cellular source, while BMP-12 directs their differentiation towards tenocytes, aiming for true tissue regeneration rather than scar formation.This combination offers a significant theoretical advantage for clinical applications like rotator cuff repair, particularly due to its high tendon-forming specificity and low risk of off-target effects.Further in vivo research is needed to optimize its application.(