哥伦比亚大学Hynek Wichterle小组的研究认为胚胎运动神经元编程因子重新激活未成熟基因表达并抑制出生后运动神经元的ALS病理。2025年8月12日,国际知名学术期刊《自然—神经科学》发表了这一成果。
研究团队假设通过重新表达胚胎运动神经元选择转录因子ISL1和LHX3可以恢复年轻运动神经元的弹性。该团队发现,在ALS的SOD1G93A小鼠模型中,出生后运动神经元中ISL1和LHX3的病毒重表达选择性地激活了它们年轻时基因表达程序的各个方面,并缓解了关键的疾病相关表型。他们的研究结果表明,谱系特异性神经元选择转录因子的重新部署可能是一种有效的策略,以减轻神经退行性疾病中年龄依赖性表型。
据介绍,衰老是肌萎缩性侧索硬化症(ALS)和其他成人发病的神经退行性疾病的主要危险因素。虽然年轻的神经元能够缓冲疾病引导的压力,成熟的神经元失去这种能力,并随着时间的推移而退化。
附:英文原文
Title: Embryonic motor neuron programming factors reactivate immature gene expression and suppress ALS pathologies in postnatal motor neurons
Author: Lowry, Emily R., Patel, Tulsi, Costa, Jonathon A., Chang, Elizabeth, Tariq, Shahroz, Melikyan, Hranush, Davis, Ian, Aziz, Siaresh, Ntermentzaki, Georgia, Lotti, Francesco, Wichterle, Hynek
Issue&Volume: 2025-08-12
Abstract: Aging is a major risk factor in amyotrophic lateral sclerosis (ALS) and other adult-onset neurodegenerative disorders. Whereas young neurons are capable of buffering disease-causing stresses, mature neurons lose this ability and degenerate over time. We hypothesized that the resilience of young motor neurons could be restored by reexpression of the embryonic motor neuron selector transcription factors ISL1 and LHX3. We found that viral reexpression of ISL1 and LHX3 selectively in postnatal motor neurons reactivates aspects of their youthful gene expression program and alleviates key disease-relevant phenotypes in the SOD1G93A mouse model of ALS. Our results suggest that redeployment of lineage-specific neuronal selector transcription factors can be an effective strategy to attenuate age-dependent phenotypes in neurodegenerative disease.
DOI: 10.1038/s41593-025-02033-x
Source: https://www.nature.com/articles/s41593-025-02033-x
期刊信息
Nature Neuroscience:《自然—神经科学》,创刊于1998年。隶属于施普林格·自然出版集团,最新IF:28.771
官方网址:https://www.nature.com/neuro/
投稿链接:https://mts-nn.nature.com/cgi-bin/main.plex