中国神经再生研究(英文版) ›› 2024, Vol. 19 ›› Issue (7): 1421-1422.doi: 10.4103/1673-5374.387986

• 观点:退行性病与再生 • 上一篇    下一篇

钙稳态失调:干细胞衍生帕金森病神经元最早的病理标志?

  

  • 出版日期:2024-07-15 发布日期:2023-11-28

A dysregulated calcium homeostasis as the earliest pathological sign in stem cell-derived Parkinson’s disease neurons?

Nilima Prakash*   

  1. Working Group Human Stem Cell Research, Department Hamm 2, Hamm-Lippstadt University of Applied Sciences, Hamm, Germany
  • Online:2024-07-15 Published:2023-11-28
  • Contact: Nilima Prakash, Dr. rer. nat. habil., nilima.prakash@hshl.de.

摘要: https://orcid.org/0000-0002-0568-6262 (Nilima Prakash)

Abstract: Parkinson’s disease (PD) is characterized by the slow and progressive demise of dopamine (DA)-synthesizing neurons in the substantia nigra pars compacta (SNc), a nucleus located in the human ventral midbrain. Neuron death also affects other regions in the brain at later stages of PD. The concomitant lack of DA in the human forebrain (striatum) leads to the typical motor symptoms of this still uncurable neurodegenerative disorder. However, these symptoms only appear when at least 50% of the SNc DA neurons have already died, resulting in a relatively late diagnosis of PD usually from the sixth decade of life onward (Surmeier et al., 2017). Current PD treatments are only symptomatic and have time-restricted effectiveness, leading to the appearance of serious side effects over time due to maladaptive processes in the brain. They are focused on the reestablishment of the DA supply in the striatum by pharmacological agents or, eventually, the transplantation of DA-producing neurons. In some cases, PD treatment includes the normalization of forebrain motor circuits affected by the lack of DA through electrical (deep brain) stimulation. Early diagnostic markers and disease-modifying therapies for PD are thus urgently needed in the clinic. Ideally, a predisposition to PD ought to be diagnosed for timely interventions, and the irreversible loss of SNc DA and other neurons in the PD brain ought to be prevented altogether or at least slowed to a similar rate to the normal demise of neurons in the aging brain.