Bone Morphogenetic Protein (BMP)-12의 힘줄 재생 촉진 효과

Abstract

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.