Journal of advanced research · 2025
The brain-joint axis: links between osteoarthritis and neurodegenerative disorders in aging.
СтатьяОбзорПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Rabie Mostafa A, Madry Henning, Cucchiarini Magali, El-Sayed Nesrine S
Аннотация
BACKGROUND: Osteoarthritis (OA) and neurodegenerative disorders such as Alzheimer's and Parkinson's diseases are prevalent age-related conditions that severely impair quality of life in the elderly. Growing evidence suggests shared pathological drivers, including chronic low-grade inflammation, oxidative stress, mitochondrial dysfunction, and cellular senescence, link the degeneration of articular cartilage with neuronal loss in the aging brain.
AIM OF REVIEW: This review introduces and defines the emerging concept of the "brain-joint axis" as a bidirectional communication network integrating neural, endocrine, and immune signaling between the central nervous system (CNS) and joint tissues. By consolidating evidence of systemic crosstalk between OA and neurodegenerative disorders, we highlight how aging-related biological processes simultaneously influence joint and brain homeostasis.
KEY SCIENTIFIC CONCEPTS OF REVIEW: We discuss how proinflammatory cytokines (e.g., interleukin-1β, tumor necrosis factor-α) and metabolic stress mediators propagate systemic inflammation that exacerbates both cartilage degradation and neuronal damage. Furthermore, we propose that OA is not merely a localized musculoskeletal disorder but part of a broader systemic neuro-immuno-endocrine network whose dysfunction contributes to neurodegeneration. Indeed, this work delineates the mechanistic framework of the brain-joint axis, emphasizing its translational potential as a therapeutic target to simultaneously mitigate OA progression and neurodegenerative decline.
AIM OF REVIEW: This review introduces and defines the emerging concept of the "brain-joint axis" as a bidirectional communication network integrating neural, endocrine, and immune signaling between the central nervous system (CNS) and joint tissues. By consolidating evidence of systemic crosstalk between OA and neurodegenerative disorders, we highlight how aging-related biological processes simultaneously influence joint and brain homeostasis.
KEY SCIENTIFIC CONCEPTS OF REVIEW: We discuss how proinflammatory cytokines (e.g., interleukin-1β, tumor necrosis factor-α) and metabolic stress mediators propagate systemic inflammation that exacerbates both cartilage degradation and neuronal damage. Furthermore, we propose that OA is not merely a localized musculoskeletal disorder but part of a broader systemic neuro-immuno-endocrine network whose dysfunction contributes to neurodegeneration. Indeed, this work delineates the mechanistic framework of the brain-joint axis, emphasizing its translational potential as a therapeutic target to simultaneously mitigate OA progression and neurodegenerative decline.