由持续的超生理内性GDNF输送引起的氧化应激通过剂量调节来预防
Marcelo Duarte Azevedo1, Naika Prince1, Marie Humbert-Claude1
1Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), 1011 Lausanne, Switzerland.
Molecular therapy. Methods & clinical development
|September 28, 2023
概括
质细胞系衍生神经营养因子 (GDNF) 在帕金森病中表现有前景,但最佳剂量至关重要. 低剂量的GDNF可以保护神经元并改善运动功能,而不会有毒,与高剂量不同.
科学领域:
- 神经科学是一个神经科学.
- 再生医学是一种再生医学.
- 基因治疗 基因治疗
背景情况:
- 在帕金森病早期的试验中,内GDNF给药显示出神经保护作用.
- 然而,临床益处并不显著,这表明剂量依赖的疗效和潜在的毒性.
研究的目的:
- 在帕金森病的小鼠模型中研究GDNF对神经保护和运动功能的剂量依赖性影响.
- 为了确定最佳的GDNF度,以获得治疗效益,同时避免毒性.
主要方法:
- 人类GDNF的AAV介导输送到6氧多巴胺损伤的老鼠的条纹体中.
- 连续或间歇地在17周内给予GDNF,剂量相当于老鼠内源水平的3,10和20倍.
- 评估运动行为,多巴胺基神经元存活率,条状内置,DNA氧化和多巴胺基纤维发芽.
主要成果:
- 低剂量的GDNF (3倍和10倍) 导致稳定的运动改善,保留了多巴胺基神经元,并增加了条状内置.
- 高GDNF剂量 (20倍) 导致暂时的运动效益,但导致DNA氧化增加,神经元细胞大小减少和异常发芽.
- 间歇性高剂量的GDNF减轻了毒性,但没有恢复神经元细胞大小.
结论:
- 保持GDNF度低于诱导氧化应激的值,对于帕金森病的症状缓解和神经保护至关重要.
- 剂量优化对于平衡治疗效果和避免GDNF诱导的毒性至关重要.
关键词:
6 - 氧多巴胺氨基在 AAV AAV AAV 中.这就是GDNF的原因.帕金森病是帕金森氏症的一种疾病.多巴胺类神经元的神经元多克西环素是什么?多克西环素是什么?这是一个可诱导的诱导.发动机测试试验 发动机测试试验神经保护神经保护氧化应激是一种氧化应激.更多相关视频
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