Nerves in Bone: Evolving Concepts in Pain and Anabolism

Area of Science:

• Skeletal Neurobiology
• Bone Biology
• Neuroscience

Background:

• The innervation of bone has been studied for centuries, with recent advances revealing specific neuron roles in skeletal homeostasis.
• Research focuses on neuronal distribution, function, and interactions within the bone microenvironment.

Purpose of the Study:

• To provide a historical perspective on skeletal neurobiology.
• To explore neuronal subtypes, distribution, and central projections in the skeleton.
• To discuss neural control of skeletal development, homeostasis, repair, and bone pain.

Main Methods:

• Literature review and synthesis of existing research in skeletal neurobiology.
• Analysis of neuronal subtypes, their distribution within bone compartments, and central projection pathways.
• Examination of the neural control mechanisms in skeletal health and disease.

Main Results:

• The review highlights the interconnectedness of nerves and skeletal health, focusing on bone anabolism and pain.
• It establishes a "neuroskeletal map" detailing neuronal subtypes and pathways.
• Recent biotherapeutic success with anti-nerve growth factor (NGF) agents in clinical trials for pain relief while preserving bone health.

Conclusions:

• Continued collaboration between neuroscientists and bone biologists is essential.
• Further research will deepen the understanding of neural regulation of the skeleton.
• This knowledge will drive the development of novel therapeutics for skeletal disorders and pain.