Gollamudi Jahnavi, Karkoska Kristine A, Gbotosho Oluwabukola T, Zou Wei, Hyacinth Hyacinth I, Teitelbaum Steven L
Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
Department of Neurology and Rehabilitation Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
Front Pain Res (Lausanne). 2024 Jan 4;4:1302014. doi: 10.3389/fpain.2023.1302014. eCollection 2023.
The bone is one of the most commonly affected organs in sickle cell disease (SCD). Repeated ischemia, oxidative stress and inflammation within the bone is largely responsible for promoting bone pain. As more individuals with SCD survive into adulthood, they are likely to experience a synergistic impact of both aging and SCD on their bone health. As bone health deteriorates, bone pain will likely exacerbate. Recent mechanistic and observational studies emphasize an intricate relationship between bone remodeling and the peripheral nervous system. Under pathological conditions, abnormal bone remodeling plays a key role in the propagation of bone pain. In this review, we first summarize mechanisms and burden of select bone complications in SCD. We then discuss processes that contribute to pathological bone pain that have been described in both SCD as well as non-sickle cell animal models. We emphasize the role of bone-nervous system interactions and pitfalls when designing new therapies especially for the sickle cell population. Lastly, we also discuss future basic and translational research in addressing questions about the complex role of stress erythropoiesis and inflammation in the development of SCD bone complications, which may lead to promising therapies and reduce morbidity in this vulnerable population.
骨骼是镰状细胞病(SCD)中最常受影响的器官之一。骨骼内反复出现的缺血、氧化应激和炎症在很大程度上导致了骨痛。随着越来越多的SCD患者存活至成年,他们的骨骼健康可能会受到衰老和SCD的协同影响。随着骨骼健康状况恶化,骨痛可能会加剧。最近的机制研究和观察性研究强调了骨重塑与外周神经系统之间的复杂关系。在病理条件下,异常的骨重塑在骨痛的传播中起关键作用。在本综述中,我们首先总结SCD中特定骨并发症的机制和负担。然后,我们讨论在SCD以及非镰状细胞动物模型中描述的导致病理性骨痛的过程。我们强调骨-神经系统相互作用的作用以及在设计新疗法时,尤其是针对镰状细胞人群时的陷阱。最后,我们还讨论了未来基础研究和转化研究,以解决关于应激性红细胞生成和炎症在SCD骨并发症发展中的复杂作用的问题,这可能会带来有前景的疗法并降低这一脆弱人群的发病率。