Discovery of bone morphogenetic proteins - A historical perspective

Area of Science:

• Biochemistry
• Orthopedics
• Regenerative Medicine

Background:

• Bone morphogenetic proteins (BMPs) are a family of growth factors structurally related to TGF-beta and activins.
• BMPs were initially identified by their capacity to stimulate new bone formation in vivo.
• Their discovery paved the way for understanding bone regeneration mechanisms.

Purpose of the Study:

• To provide a historical overview of the discovery of BMPs.
• To highlight the significance of BMPs in bone repair and regeneration.
• To contextualize the development of BMP-based therapeutic products.

Main Methods:

• Purification of BMPs from demineralized bone matrix.
• In vivo assays to assess the bone-inductive properties of purified proteins.
• Review of historical literature and product development milestones.

Main Results:

• BMPs were successfully isolated and characterized by their osteoinductive potential.
• Two specific BMPs, BMP2 and BMP7, have been developed into successful bone graft substitutes.
• Clinical applications for BMP2 (InFuse®) and BMP7 (OP1®) include fracture repair and spinal fusion.

Conclusions:

• The discovery of BMPs revolutionized the field of bone regeneration.
• Clinically approved BMP products demonstrate the therapeutic efficacy of these signaling molecules.
• BMPs represent a key class of biomolecules for developing advanced bone repair strategies.