Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China; Department of Medical Sciences, Ningde Normal University College of Medical Sciences, No. 1 Xueyuan Road, Jiaocheng District, Ningde City, Fujian, China.
Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, 01605, MA, USA.
J Control Release. 2024 Sep;373:336-357. doi: 10.1016/j.jconrel.2024.07.010. Epub 2024 Jul 24.
Alzheimer's disease (AD) is a complex neurodegenerative condition characterized by metabolic imbalances and neuroinflammation, posing a formidable challenge in medicine due to the lack of effective treatments. Despite considerable research efforts, a cure for AD remains elusive, with current therapies primarily focused on symptom management rather than addressing the disease's underlying causes. This study initially discerned, through Mendelian randomization analysis that elevating pantothenate levels significantly contributes to the prophylaxis of Alzheimer's disease. We explore the therapeutic potential of pantothenate encapsulated in liposomes (Pan@TRF@Liposome NPs), targeting the modulation of CRM1-mediated PKM2 nuclear translocation, a critical mechanism in AD pathology. Additionally, we investigate the synergistic effects of exercise, proposing a combined approach to AD treatment. Exercise-induced metabolic alterations share significant similarities with those associated with dementia, suggesting a potential complementary effect. The Pan@TRF@Liposome NPs exhibit notable biocompatibility, showing no liver or kidney toxicity in vivo, while demonstrating stability and effectiveness in modulating CRM1-mediated PKM2 nuclear translocation, thereby reducing neuroinflammation and neuronal apoptosis. The combined treatment of exercise and Pan@TRF@Liposome NP administration in an AD animal model leads to improved neurofunctional outcomes and cognitive performance. These findings highlight the nanoparticles' role as effective modulators of CRM1-mediated PKM2 nuclear translocation, with significant implications for mitigating neuroinflammation and neuronal apoptosis. Together with exercise, this dual-modality approach could offer new avenues for enhancing cognitive performance and neurofunctional outcomes in AD, marking a promising step forward in developing treatment strategies for this challenging disorder.
阿尔茨海默病(AD)是一种复杂的神经退行性疾病,其特征是代谢失衡和神经炎症,由于缺乏有效的治疗方法,这在医学上构成了巨大的挑战。尽管进行了大量的研究工作,但 AD 的治愈方法仍然难以捉摸,目前的治疗方法主要集中在症状管理上,而不是解决疾病的根本原因。本研究最初通过孟德尔随机化分析发现,提高泛酸水平对预防阿尔茨海默病有显著作用。我们探讨了包封在脂质体中的泛酸(Pan@TRF@Liposome NPs)的治疗潜力,该脂质体针对调节 CRM1 介导的 PKM2 核易位,这是 AD 病理学中的一个关键机制。此外,我们研究了运动的协同作用,提出了一种针对 AD 的联合治疗方法。运动引起的代谢改变与痴呆相关的改变有显著相似之处,这表明可能存在互补效应。Pan@TRF@Liposome NPs 表现出显著的生物相容性,在体内没有显示出肝或肾毒性,同时在调节 CRM1 介导的 PKM2 核易位方面表现出稳定性和有效性,从而减少神经炎症和神经元凋亡。在 AD 动物模型中,运动和 Pan@TRF@Liposome NP 联合治疗可改善神经功能结局和认知表现。这些发现强调了纳米颗粒作为有效调节 CRM1 介导的 PKM2 核易位的调节剂的作用,对减轻神经炎症和神经元凋亡具有重要意义。与运动相结合,这种双重模式方法为提高 AD 患者的认知表现和神经功能结局提供了新的途径,为开发这种具有挑战性的疾病的治疗策略迈出了有希望的一步。
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